Patent Publication Number: US-11647883-B2

Title: Cleaner

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. application Ser. No. 16/711,355, filed on Dec. 11, 2019, which is a continuation of U.S. application Ser. No. 15/652,898, filed on Jul. 18, 2017, now U.S. Pat. No. 10,531,777, which claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2016-0108315, filed in Korea on Aug. 25, 2016, and Korean Patent Application No. 10-2016-0183823, filed in Korea on Dec. 30, 2016, whose entire disclosure is hereby incorporated by reference. 
    
    
     BACKGROUND 
     The present disclosure relates to a cleaner. 
     Cleaners may be classified into a manual cleaner that a user moves in person for cleaning and an automatic cleaner that automatically moves for cleaning. 
     Manual cleaners may fall into, depending on the types, a canister cleaner, an upright cleaner, a handy cleaner, and a stick cleaner. 
     Handy cleaners, generally, may include a suction unit, a body, and a handle. 
     An extension pipe having a suction nozzle may be connected to the suction unit. Further, a battery for supplying power may be disposed in the handle. 
     When the suction nozzle includes a cleaning unit for sweeping carpets and a motor for rotating the cleaning unit, the motor is supposed to be supplied with power from the battery. 
     In order to supply power to the motor from the battery in the handle, the battery should be connected with the motor through a power supply wire and a control signal wire. The wires are connected to the suction unit through the body. 
     A PCB for controlling the motor may be disposed in the body or the handle. 
     However, handy cleaners are small in volume in comparison to other cleaners, so it is difficult to combine the PCB and connect the wires in the assembly process. 
     Meanwhile, in the related art, a handheld vacuum cleaner has been disclosed in Korean Patent No. 10-1127088 (registered on 8 Mar. 2012). 
     SUMMARY 
     The present disclosure provides a cleaner that can be easily assembled. 
     The present disclosure provides a cleaner of which terminals can be connected in the process of assembling the cleaner without a user connecting the terminals. 
     The present disclosure provides a cleaner of which terminals can be reduced in size by separating a wire for supplying power and a wire for transmitting control signals from each other. 
     A cleaner includes: a suction unit that guides dust and air; a main body that includes a dust separation unit for separating dust from air guided through the suction unit; a main body terminal that is mounted on the main body; a handle unit that is slide-coupled to the main body; and a handle terminal that is mounted on the handle unit and is connected to the main body terminal when the handle unit is slide-coupled to the main body. 
     A cleaner includes: a suction unit that guides air and dust; a main body including a suction motor generating suction force to suck air through the suction unit; a main body terminal that is mounted on the main body and connected with the suction motor through wires; a handle unit that is coupled to the main body; a battery that is separately connected to the handle unit to supply power to the suction motor; and a handle terminal that is mounted on the handle unit, connected with the battery, and mechanically connected with the main body terminal when the handle unit is coupled to the main body. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a perspective view of a cleaner according to an embodiment of the present invention. 
         FIG.  2    is a side view of the cleaner according to an embodiment of the present invention. 
         FIG.  3    is a plan view of the cleaner according to an embodiment of the present invention. 
         FIG.  4    is a perspective view of the cleaner according to an embodiment of the present invention when seen from under the cleaner. 
         FIG.  5    is a cross-sectional view of the cleaner according to an embodiment of the present invention. 
         FIG.  6    is an exploded perspective view of the cleaner according to an embodiment of the present invention. 
         FIG.  7    is a view showing a support body and a sealing member according to an embodiment of the present invention. 
         FIG.  8    is a perspective view of a first body according to an embodiment of the present invention. 
         FIG.  9    is a front view of the first body shown in  FIG.  8   . 
         FIG.  10    is a perspective view of a second body according to an embodiment of the present invention. 
         FIG.  11    is a front view of the second body according to an embodiment of the present invention. 
         FIG.  12    is a front view of a main body formed by combining the first body and the second body with each other. 
         FIG.  13    is a rear perspective view of the main body formed by combining the first body and the second body with each other. 
         FIG.  14    is a perspective view of a suction unit according to an embodiment of the present invention. 
         FIG.  15    is an exploded perspective view of the suction unit according to an embodiment of the present invention. 
         FIG.  16    is a view when the suction unit of the present invention is coupled to the main body. 
         FIG.  17    is a view when a suction motor according to an embodiment of the present invention is inserted into the main body. 
         FIG.  18    is a view when an upper motor housing according to an embodiment of the present invention is inserted into the main body. 
         FIG.  19    is a view when a flow guide according to an embodiment of the present invention is inserted into the main body. 
         FIG.  20    is a view when a pre-filter according to an embodiment of the present invention is inserted into the main body. 
         FIG.  21    is a view when a filter unit according to an embodiment of the present invention is coupled to the main body. 
         FIG.  22    is a bottom perspective view of the filter unit according to an embodiment of the present invention. 
         FIG.  23    is a view before the filter unit according to an embodiment of the present invention is coupled to the flow guide. 
         FIG.  24    is a view after the filter unit according to an embodiment of the present invention is coupled to the flow guide. 
         FIGS.  25  and  26    are perspective views of a cover member according to an embodiment of the present invention. 
         FIG.  27    is a perspective view showing a main body terminal according to an embodiment of the present invention. 
         FIG.  28    is a vertical cross-sectional view before the cover member according to an embodiment of the present invention is coupled to the main body. 
         FIG.  29    is a vertical cross-sectional view after the cover member is coupled to the main body. 
         FIG.  30    is a horizontal cross-sectional view after the cover member according to an embodiment of the present invention is coupled to the main body. 
         FIG.  31    is a view after the main body terminal is mounted on the cover member. 
         FIG.  32    is a perspective view of a handle unit according to an embodiment of the present invention. 
         FIGS.  33  and  34    are perspective views of a handle terminal according to an embodiment of the present invention. 
         FIG.  35    is a perspective view of a main PCB unit according to an embodiment of the present invention. 
         FIG.  36    is a front view of the main PCB unit shown in  FIG.  35   . 
         FIGS.  37  and  38    are exploded perspective views of the main PCB unit shown in  FIG.  35   . 
         FIG.  39    is a perspective view of a PCB connector of the present invention. 
         FIG.  40    is a perspective view of a handle body according to an embodiment of the present invention. 
         FIG.  41    is a cross-sectional view showing the internal structure of a handle according to an embodiment of the present invention. 
         FIG.  42    is a cross-sectional view when the main PCB unit is coupled to the handle body according to an embodiment of the present invention. 
         FIG.  43    is a view showing a power PCB seated on a support rib with the main PCB unit coupled to the handle body according to an embodiment of the present invention. 
         FIG.  44    is a view when a handle cover and an operation unit are combined in the state shown in  FIG.  43   . 
         FIG.  45    is a view after the handle terminal and the main PCB unit are installed in the handle unit according to an embodiment of the present invention. 
         FIG.  46    is a view when the handle unit according to an embodiment of the present invention is coupled to the main body after being assembled. 
         FIG.  47    is a vertical cross-sectional view before the handle unit according to an embodiment of the present invention is coupled to the cover member. 
         FIG.  48    is a vertical cross-sectional view after the handle unit according to an embodiment of the present invention is coupled to the cover member. 
         FIG.  49    is a horizontal cross-sectional view after the handle unit according to an embodiment of the present invention is coupled to the cover member. 
         FIG.  50    is a vertical cross-sectional view before the handle unit according to an embodiment of the present invention is coupled to the second body. 
         FIG.  51    is a vertical cross-sectional view after the handle unit according to an embodiment of the present invention is coupled to the second body. 
         FIG.  52    is a view when an inner housing combined with a body cover according to an embodiment of the present invention is coupled to the main body. 
         FIG.  53    is a perspective view after the cover member according to an embodiment of the present invention is coupled to the main body. 
         FIG.  54    is a perspective view after the inner housing is coupled to the main body combined with the cover member according to an embodiment of the present invention. 
         FIG.  55    is a cross-sectional view after the inner housing is coupled to the main body according to an embodiment of the present invention. 
         FIG.  56    is a perspective view when a battery is coupled to a battery housing according to an embodiment of the present invention. 
         FIG.  57    is a vertical cross-sectional view after the battery is coupled to the battery housing according to an embodiment of the present invention. 
         FIG.  58    is a conceptual diagram schematically showing the combination structures of the cleaner of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that when components in the drawings are designated by reference numerals, the same components have the same reference numerals as far as possible even though the components are illustrated in different drawings. Further, in description of embodiments of the present disclosure, when it is determined that detailed descriptions of well-known configurations or functions disturb understanding of the embodiments of the present disclosure, the detailed descriptions will be omitted. 
     Also, in the description of the embodiments of the present disclosure, the terms such as first, second, A, B, (a) and (b) may be used. Each of the terms is merely used to distinguish the corresponding component from other components, and does not delimit an essence, an order or a sequence of the corresponding component. It should be understood that when one component is “connected”, “coupled” or “joined” to another component, the former may be directly connected or jointed to the latter or may be “connected”, coupled” or “joined” to the latter with a third component interposed therebetween. 
       FIG.  1    is a perspective view of a cleaner according to an embodiment of the present invention,  FIG.  2    is a side view of the cleaner according to an embodiment of the present invention,  FIG.  3    is a plan view of the cleaner according to an embodiment of the present invention,  FIG.  4    is a perspective view of the cleaner according to an embodiment of the present invention when seen from under the cleaner, and  FIG.  5    is a cross-sectional view of the cleaner according to an embodiment of the present invention. 
     Referring to  FIGS.  1  to  5   , a cleaner  1  according to an embodiment of the present invention may include a main body  2 . 
     The cleaner  1  may further include a suction unit  5  coupled to the front of the main body  2 . The suction unit  5  can guide air containing dust into the main body  2 . 
     The cleaner  1  may further include a handle unit  3  coupled to the main body  2 . The handle unit  3  may be positioned opposite to the suction unit  5  on the main body  2 . 
     That is, the main body  2  may be disposed between the suction unit  5  and the handle unit  3 . 
     The main body  2  may include a first body  10  and a second body  12  on the first body  10 . 
     The first body  10  and the second body  12  may be, though not limited thereto, formed in a cylindrical shape. 
     The suction unit  5  may be coupled to the main body  2  such that the center of the suction unit  5  is positioned approximately at the boundary between the first body  10  and the second body  12 . 
     The main body  2  may further include a dust separation unit that separates dust from air sucked through the suction unit  5 . 
     The dust separation unit may include a first cyclone unit  180  that can separate dust, for example, using cyclonic flow. The first body  10  includes the first cyclone unit  180  in this configuration. 
     The air and dust sucked through the suction unit  5  helically flow along the inner side of the first cyclone unit  180 . 
     The axis of the cyclonic flow in the first cyclone unit  180  may vertically extend. 
     The dust separation unit may further include a second cyclone unit  190  that secondarily separates dust from the air discharged out of the first cyclone unit  180 . The second cyclone unit  190  may be disposed inside the first cyclone unit  180  to minimize the size of the dust separation unit. The second cyclone unit  190  may include a plurality of cyclone bodies arranged in a raw. 
     As another example, the dust separation unit may include one cyclone unit, in which the axis of the cyclonic flow may also vertically extend. 
     The first body  10  functions as a dust container that stores dust separated by the cyclone units  180  and  190 . That is, the first body  10  includes the first cyclone unit  180  and the dust container. The upper part of the first body  10  is the first cyclone unit  180  and the lower part of the first body  10  is the dust container. The first body  10  may be partially or entirely transparent or translucent to enable a user to visually check the amount of dust in the dust container. 
     The main body  2  may further include a body cover  16  for opening/closing the bottom of the first body  10 . The body cover  16  can open/close the first body  10  by being rotated. 
     At least a portion of the second cyclone unit  190  may be positioned inside the first body  10 . 
     A dust storage guide  184  that guides the dust separated by the second cyclone unit  190  to be stored may be disposed in the first body  10 . The dust storage guide  184  may be coupled to the bottom of the second cyclone unit  190  in contact with the top of the body cover  16 . 
     The dust storage guide  184  may divide the internal space of the first body  10  into a first dust storage part  181  where the dust separated by the first cyclone unit  180  is stored and a second dust storage part  183  where the dust separated by the second cyclone unit  190  is stored. 
     The internal space of the dust storage guide  184  is the second dust storage part  183  and the space between the dust storage guide  184  and the first body  10  is the first dust storage part  181 . 
     The body cover  16  can open/close both of the first dust storage part  181  and the second dust storage part  183 . 
     The cleaner  1  may further include a suction motor  20  for generating suction force and a battery  40  for supplying power to the suction motor  20 . 
     The suction motor  20  may be disposed in the second body  12 . At least a portion of the suction motor  20  may be disposed over the dust separation unit. Accordingly, the suction motor  20  is disposed over the first body  10 . 
     The suction motor  20  may communicate with an outlet of the second cyclone unit  190 . 
     To this end, the main body  2  may further include a discharge guide  28  connected to the second cyclone unit  190  and a flow guide  22  that communicates with the discharge guide  28 . 
     For example, the discharge guide  28  is disposed on the second cyclone unit  190  and the flow guide  22  is disposed over the discharge guide  28 . 
     Further, at least a portion of the suction motor  20  is positioned inside the flow guide  22 . 
     Accordingly, the axis of the cyclonic flow in the first cyclone unit  180  may pass through the suction motor  20 . 
     When the suction motor  20  is disposed over the second cyclone unit  190 , the air discharged from the second cyclone unit  190  can flow directly to the suction motor  20 , so the channel between the dust separation unit and the suction motor  20  can be minimized. 
     The suction motor  20  may include a rotary impeller  200 . The impeller  200  may be fitted on a shaft  202 . The shaft  202  is vertically disposed. 
     An extension line from the shaft  202  (which may be considered as the rotational axis of the impeller  200 ) may pass through the first body  10 . The rotational axis of the impeller  200  and the axis of the cyclonic flow in the first cyclone unit  180  may be on the same line. 
     According to the present invention, there is the advantage that the path through which the air discharged from the dust separation unit, that is, the air discharged upward from the second cyclone unit  190  flows to the suction motor  20  can be reduced and a change in direction of air can be decreased, so a loss of airflow can be reduced. 
     As the loss of airflow is reduced, suction force can be increased and the lifetime of the battery  40  for supplying power to the suction motor  20  can be increased. 
     The cleaner  1  may further include an upper motor housing  26  covering a portion of the top of the suction motor  20  and a lower motor housing  27  covering a portion of the bottom of the suction motor  20 . The lower motor housing  27  may be integrally formed with the second body  12  or may be coupled to the second body  12 . 
     The suction motor  20  may be disposed inside the motor housings  26  and  27  and the flow guide  22  may be disposed to cover the upper motor housing  26 . 
     At least a portion of the flow guide  22  may be spaced apart from the upper motor housing  26 . Further, at least a portion of the flow guide  22  may be spaced apart from the second body  12 . 
     Accordingly, a first air passage  232  is defined by the inner side of the flow guide  22  and the outer side of the upper motor housing  26  and a second air passage  234  is defined by the outer side of the flow guide  22  and the inner side of the second body  12 . 
     The air discharged from the second cyclone unit  190  flows to the suction motor  20  through the first air passage  232  and the air discharged from the suction motor  20  flows through the second air passage  234  and is then discharged outside. Accordingly, the second air passage  234  functions as an exhaust channel. 
     The handle unit  3  may include a handle  30  for a user to hold and a battery housing  60  under the handle  30 . 
     The handle  30  may be disposed behind the suction motor  20 . 
     As for directions, with respect to the suction motor  20  in the cleaner  1 , the direction in which the suction unit  5  is positioned is the front direction and the direction in which the handle  30  is positioned is the rear direction. 
     The battery  40  may be disposed behind the first body  10 . Accordingly, the suction motor  20  and the battery  40  may be arranged not to vertically overlap each other and may be disposed at different heights. 
     According to the present invention, since the suction motor  20  that is heavy is disposed ahead of the handle  30  and the battery  40  that is heavy is disposed behind the handle  30 , so weight can be uniformly distributed throughout the cleaner  1 . It is possible to prevent injuries to the user&#39;s wrist when a user cleans with the handle  30  in his/her hand. That is, since the heavy components are distributed at the front and rear portions and at different heights in the cleaner  1 , it is possible to prevent the center of gravity of the cleaner  1  from concentrating on any one side. 
     Since the battery  40  is disposed under the handle  30  and the suction motor  20  is disposed in front of the handle  30 , there is no component over the handle  30 . That is, the top of the handle  30  forms a portion of the external appearance of the top of the cleaner  1 . 
     Accordingly, it is possible to prevent any component of the cleaner  1  from coming in contact with the user&#39;s arm while the user cleans with the handle  30  in his/her hand. 
     The handle  30  may include a first extension  310  extending vertically to be held by a user and a second extension  320  extending toward the suction motor  20  over the first extension  310 . The second extension  320  may at least partially horizontally extend. 
     A stopper  312  for preventing a user&#39;s hand holding the first extension  310  from moving in the longitudinal direction of the first extension  310  (vertically in  FIG.  2   ) may be formed on the first extension  310 . The stopper  312  may extend toward the suction unit  5  from the first extension  310 . 
     The stopper  312  is spaced apart from the second extension  320 . Accordingly, a user is supposed to hold the first extension  310 , with some of the fingers over the stopper  312  and the other fingers under the stopper  312 . 
     For example, the stopper  312  may be positioned between the index finger and the middle finger. 
     According to this arrangement, when a user holds the first extension  310 , the longitudinal axis A 1  of the suction unit  5  may pass through the user&#39;s wrist. 
     When the longitudinal axis A 1  of the suction unit  5  passes through the user&#39;s wrist and the user&#39;s arm is stretched, the longitudinal axis A 1  of the suction unit  5  may be substantially aligned with the user&#39;s stretched arm. Accordingly, there is the advantage in this state that the user uses minimum force when pushing or pulling the cleaner  1  with the handle  30  in his/her hand. 
     The handle  30  may include an operation unit  390 . For example, the operation unit  390  may be disposed on an inclined surface of the second extension  320 . It is possible to input instructions to turn on/off the cleaner (suction motor) through the operation unit  390 . 
     The operation unit  390  may be disposed to face a user. The operation unit  390  may be disposed opposite to the stopper  312  with the handle  30  therebetween. 
     The operation unit  390  is positioned higher than the stopper  312 . Accordingly, a user can easily operate the operation unit  390  with his/her thumb with the first extension  310  in his/her hand. 
     Further, since the operation unit  390  is positioned outside the first extension  310 , it is possible to prevent the operation unit  390  from being unexpectedly operated when a user cleans with the first extension  310  in his/her hand. 
     The battery housing  60  may be disposed under the first extension  310 . 
     The battery  40  may be detachably combined with the battery housing  60 . For example, the battery  40  may be inserted into the battery housing  60  from under the battery housing  60 . 
     The rear side of the battery housing  60  and the rear side of the first extension  310  may form a continuous surface. Accordingly, the battery housing  60  and the first extension  310  can be shown like a single unit. 
     When the battery  40  is inserted in the battery housing  60 , the bottom of the battery  40  may be exposed to the outside. Accordingly, when the cleaner  1  is placed on the floor, the battery  40  can be in contact with the floor. 
     According to this structure, there is the advantage that the battery  40  can be directly separated from the battery housing  60 . 
     Further, since the bottom of the battery  40  is exposed to the outside, the bottom of the battery  40  can come in direct contact with the air outside the cleaner  1 , so the battery  40  can be more efficiently cooled. 
     The battery housing  60  may include an outer housing  600  and an inner housing  610 . The inner housing  610  may be inserted under the outer housing  600 . 
     The inner housing  610  may be fixed to one or more of the outer housing  600  and the first body  10 . Further, the battery  40  may be coupled to the inner housing  610 . 
     According to the present invention, the inner housing  610  is inserted into the outer housing  600  and then the battery  40  is inserted to be coupled to the inner housing  610 , so it is possible to prevent the outer housing  600  from deforming or to prevent the outer housing  600  from being damaged when inserting or separating the battery  40 . 
     The inner housing  610  may include charging stand connection terminals  628  for charging the battery  40  coupled to the inner housing  610 . It is possible to bring the charging stand connection terminals  628  in contact with terminals of a charging stand (not shown) by placing the cleaner  1  on the charging stand. 
     The battery housing  60  may include battery connection terminals  670  that are connected to battery terminals  490  in the battery  40  inserted in the battery housing  60 . The battery connection terminals  670  may be connected to the battery terminals  490  through the top of the battery  40 . 
     Obviously, it may be possible to integrally form the inner housing  610  with the outer housing  600  without separately forming the inner housing  610 . 
     The inner housing  610  may include a pair of hinge coupling portions  620  to which a hinge  162  of the body cover  16  is coupled. The hinge coupling portions  620  may be spaced at a predetermined distance from each other. 
     Referring to  FIG.  3   , the cleaner  1  may further include a filter unit  50  having air exits  522  for discharging the air that has passed through the suction motor  20 . For example, the air exits  522  may include a plurality of openings and the openings may be circumferentially arranged. 
     The filter unit  50  may be detachably coupled to the top of the main body  2 . The filter unit  50  may be detachably inserted in the second body  12 . 
     When the filter unit  50  is combined with the main body  2 , a portion of the filter unit  50  is positioned outside the second body  12 . Accordingly, a portion of the filter unit  50  is inserted in the main body  2  through the open top of the main body  2  and the other portion protrudes outside from the main body  2 . 
     The height of the main body  2  may be substantially the same as the height of the handle  30 . Accordingly, the filter unit  50  protrudes upward from the main body  2 , so a user can easily hold and separate the filter unit  50 . 
     When the filter unit  50  is combined with the main body  2 , the air exits  522  are positioned at the upper portion of the filter unit  50 . Accordingly, the air discharged from the suction motor  20  is discharged upward from the main body  2 . 
     According to this embodiment, it is possible to prevent the air discharged from the air exits  522  from flowing to a user while the user cleans using the cleaner  1 . 
     The main body  2  may further include a pre-filter  29  for filtering the air flowing into the suction motor  20 . The pre-filter  29  may be disposed inside the flow guide  22 . Further, the pre-filter  29  is seated over the upper motor housing  16  and may surround a portion of the upper motor housing  26 . That is, the upper motor housing  26  may include a filter support for supporting the pre-filter  29 . 
       FIG.  6    is an exploded perspective view of the cleaner according to an embodiment of the present invention and  FIG.  7    is a view showing a support body and a sealing member according to an embodiment of the present invention. 
     Referring to  FIGS.  5  to  7   , the main body  2  may be disposed between the suction unit  5  and the handle unit  3 . The first body  10  and the second body  12  may be, for example, vertically arranged. 
     The cleaner  1  may further include a sealing member  15  and a support body  14  supporting the sealing member  15  to seal the boundary between the first body  10  and the second body  12  that have been combined. 
     The first body  10  and the second body  12  may be open at the top and the bottom, respectively. That is, the bodies  10  and  12  may include a top opening and a bottom opening, respectively. 
     The support body  14  may be formed in a cylindrical shape. The outer diameter of the support body  14  may be made the same as or smaller than the inner diameter of the first body  10  so that the support body  14  can be inserted into the first body  10  through the top opening of the first body  10 . 
     Further, the outer diameter of the support body  14  may be made the same as or smaller than the inner diameter of the second body  12  so that the support body  14  can be inserted into the second body  12  through the bottom opening of the second body  12 . 
     The support body  14  may include an opening  142 . 
     The sealing member  15  may be fitted around the support body  14 . For example, the sealing member  15  may be integrally formed with the support body  14  through injection molding. Alternatively, the sealing member  15  may be attached to the outer side of the support body  14  through an adhesive. 
     The support body  14  may include a first seating groove  143  extending around the support body  14  and a second seating groove  145  extending from the first seating groove  143  at a different height from the first seating groove  143 . 
     The sealing member  15  can be seated in the seating grooves  143  and  145 . 
     The first seating groove  143  may be formed at a position that approximately bisects the height of the support body  14 . The second seating groove  145  bypasses the opening  142 . For example, the second seating groove  145  is positioned under the opening  142 . 
     Accordingly, the sealing member  15  may include a first section  151  that is seated in the first seating groove  143  and a second section  152  that continues from the first section  151  and is seated in the second seating groove  145 . 
     When the sealing member  15  is seated in the seating grooves  143  and  145 , a portion of the sealing member  15  may protrude from the support body  14 . Since the sealing member  15  fitted on the support body  14  protrudes from the support body  14 , the sealing member  15  can be positioned at the boundary between the first body  10  and the second body  12  even though the support body  14  is inserted in the first body  10  and the second body  12 , whereby sealing is possible. 
     Fixing holes  146  where portions of the sealing member  15  are positioned are formed in the seating grooves  143  and  145 . As portions of the sealing member  15  are inserted in the fixing holes  146 , the sealing member  15  can be prevented from rotating circumferentially around the support body  14 . 
     The suction unit  5  may include a pipe  51  that is connected to the main body  2 , a pipe cover  53  that covers the pipe  51 , and a cover deco-member  55  that surrounds a portion of the pipe cover  53  to be coupled to the pipe  51 . 
       FIG.  8    is a perspective view of the first body according to an embodiment of the present invention and  FIG.  9    is a front view of the first body shown in  FIG.  8   . 
     Referring to  FIGS.  8  and  9   , the first body  10  may include a recessed contact surface on the outer side. A cover member  70  (see  FIG.  25   ) may be seated on the recessed contact surface. 
     The contact surface may include a rounded first contact surface  101  and flat second contact surfaces  102  at both sides of the first contact surface  101 . 
     The first body  10  may further include a cover coupling hook  104  for coupling the cover member  70  (see  FIG.  25   ). 
     The first body  10  may further include a first coupling portion  105  to be combined with the second body  12 . 
     The first coupling portion  105  may protrude from the outer side of the first body  10  and the top of the first coupling portion  105  may be inclined downward for easy combination with the second body  12 . 
     The first coupling portion  105  may be disposed at a predetermined distance downward from the upper end of the first body  10 . The first body  10  may include one or more reinforcing ribs for preventing damage to the first coupling portion  105 . 
     The cover coupling hook  104  may be disposed at a predetermined distance under the first coupling portion  105 . The cover coupling hook  104  may extend downward under the first coupling portion  105 . 
     Since the second contact surfaces  102  are disposed at both sides of the first contact surface  101 , it is possible to prevent the cover member  70  (see  FIG.  25   ) coupled to the first body  10  from horizontally rotating around the first body  10 . 
     The first body  10  may include one or more locking ribs  103  for maintaining the cover member  70  (see  FIG.  25   ) stably coupled. 
     For example, the first body  10  may include a plurality of locking ribs  103  to prevent up-down and left-right movement of the cover member  70  (see  FIG.  25   ). 
     The locking ribs  103  may protrude from the first contact surface  101  of the first body  10  and may be horizontally and vertically spaced apart from each other. 
     For example, two horizontally spaced locking ribs  103  may extend away from each other. 
     Ends  103   a  of at least some of the locking ribs  103  may be arranged to face the second contact surfaces  102  at a predetermined distance from the second contact surfaces  102 . That is, spaces may be defined between the ends  103   a  of the locking ribs  103  and the second contact surfaces  102 . 
     The first body  10  may further include a housing fastening portion  108  to be fastened to the inner housing  610 . A fastener such as a screw may be coupled to the housing fastening portion  108 . 
     In order that the fastener can be coupled to the housing fastening portion  108 , a portion of the housing fastening portion  108  may protrude outward from the first body  10  and the other portion may protrude inward from the first body  10 . For example, the housing fastening portion  108  may protrude outward and inward from the first contact surface  101 . 
     The housing fastening portion  108  may vertically extend so that the fastener can be vertically coupled to the housing fastening portion  108 . 
     The housing fastening portion  108  may be spaced upward from the lower end of the first body  10 . 
     Accordingly, the first body  10  may further include a recession  106  that provides a space for movement of a fastener and a guide groove  107  that guides the fastener in the recession so that the fastener can be coupled to the housing fastening portion  108 . 
     A first recession  111  that is recessed inward may be formed at the upper portion of the first body  10 . 
     A body receiving part  112  that provides a space for holding a portion of the second body  12  may be formed at the first recession  111 . 
     The body receiving part  112  may be formed by cutting downward the upper end of the first body  10 . 
     The first body  10  may further include a pipe coupling portion  114  (or a suction unit coupling portion) for coupling the pipe  51 . The pipe coupling portion  114  may protrude from the first body  10  under the body receiving part  112 . 
     The pipe coupling portion  114  may include one or more main body fastening bosses  116  to which fasteners are coupled. 
     The sealing member  15  may be seated on the body receiving part  112 . In detail, the second section  152  of the sealing member  15  may be seated on the body receiving part  112 . 
     A stopper rib  118  that prevents the second section  152  seated on the body receiving part  112  from moving away from the support body  14  may be disposed on the top of the pipe coupling portion  114 . Since the second section  152  of the sealing member  15  is rounded, the stopper rib  118  may be rounded to come in contact with the second section  152  of the sealing member  15 . 
     Accordingly, the first section  151  of the sealing member  15  can be seated on the upper end of the first body  10  and the second section  152  of the sealing member  15  can be seated on the body receiving part  112 . 
     The pipe coupling portion  114  on the first recession  111  may be covered by the pipe  51 . 
       FIG.  10    is a perspective view of the second body according to an embodiment of the present invention.  FIG.  11    is a front view of the second body according to an embodiment of the present invention. 
     Referring to  FIGS.  10  and  11   , the second body  12  may include a cylindrical part  120 . A second recession  120   a  that is recessed inward may be formed at a lower portion of the cylindrical part  120 . 
     The second body  12  may further include an extension  121  that extends downward from the lower end of the second recession  120   a  of the cylindrical part  120 . 
     The extension  121  may be formed in a shape corresponding to the body receiving part  112  of the first body  10 . The extension  121  may be positioned on the body receiving part  112  of the first body  10  and seated on the second section  152  of the sealing member  15 . 
     The second body  12  may include a suction opening  122  through which the air guided through the suction unit  5  flows inside. 
     The suction opening  122  may be formed at the cylindrical part  120  and the extension  121  inside the recession  120   a.    
     The reason that the extension  121  extends downward from the cylindrical part  120  and a portion of the suction opening  122  is formed at the extension  121  is for positioning the suction unit  5  around the middle of the height of the main body  2  without a large difference in height between the first body  10  and the second body  12 . 
     According to this structure, the longitudinal axis A 1  of the suction unit  5  can be positioned between the suction motor  20  and the second cyclone unit  190 . 
     If the longitudinal axis A 1  of the suction unit  5  passes through the suction motor  20 , there is a need for a channel for guiding air to the first cyclone unit  180  around the suction motor  20  and the diameter of the main body  2  is accordingly increased. 
     However, the lower the longitudinal axis A 1  of the suction unit  5 , the smaller the height of the first cyclone unit  180 , so the ability to separate dust is deteriorated. 
     Therefore, according to the present invention, since the longitudinal axis A 1  of the suction unit  5  is positioned between the suction motor  20  and the second cyclone unit  190 , it is possible to maintain the ability to separate dust and prevent the diameter or the size of the main body  2  from increasing. 
     The second body  12  may further include a suction guide  124  for guiding air to the suction opening  122 . The suction guide  124  may tangentially protrude from the second body  12 . 
     A locking protrusion  126  for locking the pipe  51  may be formed on the suction guide  124 . 
     Further, the second body  12  may include a main body fastening boss  130  for fastening the pipe  51  using a fastener. 
     Further, the second body  12  may include a terminal mount  131  for mounting a first terminal  139  for electrical connection with the pipe  51  and a wire hole  128  through which a main body wire passes. The wire hole  128  may be covered with a packing (not shown) and the main body wire may pass through the packing. When a suction nozzle connected to the end of an extension pipe connected to the suction unit  5  has a driving unit, the first terminal  139  functions as a terminal for supplying power to the driving unit. 
     Alternatively, a nozzle having the driving unit may be connected directly to the suction unit  5 , in which the driving unit of the suction nozzle can also be supplied with power from the battery  40  through the suction unit terminal. 
     When the pipe  51  is coupled to the main body fastening boss  130 , the suction opening  122 , the suction guide  124 , the main body fastening boss  130 , the terminal mount  131 , and the wire hole  128  inside the second recession  120   a  are covered with the pipe  51 . 
     The second body  12  may further include a second coupling portion  132  extending downward from the second body  12  on the opposite side to the suction opening  122 . 
     A coupling hole  133  in which the first coupling portion  105  of the first body  10  is inserted may be formed on the second coupling portion  132 . 
     Further, the second body  12  may include a wire hole  134  through which a main body wire for supplying power to the suction motor  20  passes. The wire hole  134  may be covered with a packing  138  (see  FIG.  13   ) and the main body wire may pass through the packing  138  (see  FIG.  13   ). 
     The second body  12  may further include a connector support  136 . The connector support  136  may be disposed above the wire hole  134 . 
     The second body  12  may include a first handle coupling portion for fastening the handle unit  3 . The first handle coupling portion may include first rib coupling portions  139   a  and second rib coupling portions  139   b.    
     For example, the second body  12  may include a plurality of vertically spaced first rib coupling portions  139   a . Alternatively, the second body  12  may include a plurality of horizontally spaced first rib coupling portions  139   a.    
     Alternatively, the second body  12  may include a plurality of first rib coupling portions  139   a  that is spaced horizontally and in a left-right direction. 
     The first rib coupling portions  139   a  may horizontally extend from the second body  12  and then bend upward. Accordingly, a space may be defined between some of the first rib coupling portions  139   a  and the second body  12 . Therefore, a portion of the handle unit  3  may be positioned in the space when the handle  3  is moved downward. 
       FIG.  12    is a front view of the main body formed by combining the first body and the second body with each other and  FIG.  13    is a rear perspective view of the main body formed by combining the first body and the second body with each other. 
     Referring to  FIGS.  6  to  13   , in a stated in which the sealing member  15  combined with the support body  14 , a lower portion of the support body  14  that is disposed under the sealing member  15  can be inserted into the first body  10 . 
     Accordingly, the first section  151  of the sealing member  15  is seated on the upper end of the first body  10  and the second section  152  of the sealing member  15  is seated on the body receiving part  112  of the first body  10 . 
     Then, the second body  12  is coupled to the first body  10  from above the first body  10 . 
     Accordingly, a portion of the support body  14  that is disposed above the sealing member  15  is inserted in the second body  12  and the second coupling portion  132  of the second body  12  is coupled to the first coupling portion  105  of the first body  10 . Further, the lower end of the second body  12  is seated on the sealing member  15 . When the second body  12  is coupled to the first body  10 , the second body  12  and the first body  10  press the sealing member  15 . 
     When the second coupling portion  132  is coupled to the first coupling portion  105 , the second coupling portion  132  is positioned outside the sealing member  15 . Accordingly, it is possible to prevent a portion of the sealing member  15  from separating outward from the support body  14 . 
     Further, when the second body  12  is coupled to the first body  10 , the suction opening  122  of the second body  12  and the opening  142  of the support body  14  are aligned. 
     After the first body  10  and the second body  12  are combined, the suction unit  5  can be coupled to both of the first body  10  and the second body  12 . 
     According to this embodiment, since the first body  10  that provides a storage space and the second body  12  that receives the suction motor  20  are separately manufactured and then combined with each other, the structures of the bodies can be simple. 
     Further, according to the present invention, since the sealing member  15  is disposed at the boundary between the first body  10  and the second body  12  when the first body  10  and the second body  12  are combined, sealing can be maintained. 
     Before or after the first body  10  and the second body  12  are combined, a connecting terminal  349   a  may be mounted on the connector support  136  and the wire hole  134  may be covered with the packing  138 . The connecting terminal  349   a  may include a signal terminal for transmitting control signals to the suction motor  20 . 
       FIG.  14    is a perspective view of the suction unit according to an embodiment of the present invention,  FIG.  15    is an exploded perspective view of the suction unit according to an embodiment of the present invention, and  FIG.  16    is a view when the suction unit of the present invention is coupled to the main body. 
     Referring to  FIGS.  6  to  15   , the pipe  51  may include a main body connecting portion  510  to be coupled to the main body  2  and a guide pipe  520  extending from the main body connecting portion  510  to guide air to the main body  2 . 
     Though not shown in the guide pipe  520 , an extension pipe connected to a suction nozzle can be coupled to the guide pipe. Alternatively, a suction nozzle may be coupled directly to the guide pipe  520 . 
     The main body connecting portion  510  may include a guide duct  514  that communicates with the guide pipe  520  to guide airflow. An insertion groove  515  for fitting the end of the suction guide  124  may be formed on the edge of the guide duct  514 . 
     The guide duct  514  may include an opening and closing part  526 . The opening and closing part  526  may be rotatably connected to the guide duct  514 . 
     The opening and closing part  526  connects the guide duct  514  and the suction opening  122  when the suction motor  20  is turned on, and disconnects the guide duct  514  and the suction opening  122  when the suction motor  20  is turned off. 
     An elastic member (not shown) may be connected to a hinge shaft of the guide duct  514 . When the suction motor  20  is turned off, the opening and closing part  526  disconnects the guide duct  514  and the suction opening  122  by elasticity of the elastic member (not shown). 
     When the opening and closing part  526  disconnects the guide duct  514  and the suction opening  122 , the dust in the dust container cannot be discharged outside through the guide duct  514  even if the cleaner  1  is turned upside down. 
     The main body connecting portion  510  may include a terminal mount  517  for mounting a second terminal  528  for electrical connection with the main body  2 . 
     The main body connecting portion  510  may further include pipe fastening bosses  516  for coupling to the main body fastening bosses  116  and  130  of the bodies  10  and  12 . 
     The main body connecting portion  510  may further include a locking hole  512  for locking the locking protrusion  126  of the suction guide  124 . 
     In order to couple the pipe  51  to the main body  2 , first, the pipe  51  is placed ahead of the main body  2  and then horizontally moved such that the locking protrusion  126  is locked into the locking hole  512  of the main body connecting portion  510 . Accordingly, the suction guide  124  is inserted into the insertion groove  515  of the suction duct  514 , and the main body fastening bosses  116  and  130  and the pipe fastening bosses  516  can be aligned. 
     The pipe  51  can be fixed to the main body  2  by coupling fasteners to the fastening bosses  516  and the main body fastening bosses  116  and  130  from ahead of the pipe  51 . 
     Further, the second terminal  528  in the pipe  51  is electrically connected to the first terminal  139  in the second body  12 . That is, according to the present invention, the terminals can be naturally connected when the pipe  51  is coupled to the main body  2  without a user connecting the terminals in person, so convenience for the user can be improved. In the present invention, the first terminal  139  and the second terminal  528  may be considered as terminals for a suction nozzle. 
     An anti-interference groove  518  may be formed on the pipe  51  to prevent interference between the pipe  51  and the second section  152  of the sealing member  15 , with the pipe  51  fixed to the main body  2 . 
     The pipe cover  53  may be placed in position to cover the pipe  51  after the pipe  51  is coupled to the main body  2 . 
     The pipe cover  53  may include a hole  531  for passing the guide pipe  520 . A mounting portion  532  for mounting the cover deco-member  55  is formed around the hole  531  of the pipe cover  53 . Further, slots  534  for passing the hooks  553  of the cover deco-member  55  may be formed at the mounting portion  532 . 
     The cover deco-member  55  may include a body  551  with a hole  552  for passing the guide pipe  520  and the hooks  553  extending from the body  551 . 
     When the cover deco-member  55  is fitted on the mounting portion  532  with the pipe  51  covered by the pipe cover  53 , the hooks  553  of the cover deco-member  55  are locked to hook locking protrusions  524  of the guide pipe  520 . 
     When the cover deco-member  55  is fitted on the pipe  51 , the edge of the pipe cover  53  comes in contact with the end of the first recession  101  of the first body  10  and the second recession  120   a  of the second body  12 . 
     With the pipe  51  covered with the pipe cover  53 , the first section  151  of the sealing member  15  is exposed to the outside, while the second section  152  is not exposed to the outside. That is, the suction unit  5  covers a portion of the boundary between the bodies  10  and  12 . 
     The direction in which the suction unit  5  is coupled to the main body  2  may be referred to as a first coupling direction. The first coupling direction may be the horizontal direction. 
       FIG.  17    is a view when the suction motor according to an embodiment of the present invention is inserted into the main body. 
     Referring to  FIGS.  5  and  17   , the suction motor  20  can be inserted into the main body  2  through the open top of the main body  2 , with the suction unit  5  coupled to the main body  2 . 
     The maximum diameter of the suction motor  20  may be smaller than the open top of the main body  2  in order to insert the suction motor  20  into the main body  2  through the open top of the main body  2 . 
     A motor control substrate  204  may be coupled to the bottom of the suction motor  20 , with the impeller  200  of the suction motor  20  facing up. 
     The suction motor  20  can be inserted into the main body  2 , with the motor control substrate  204  coupled to the bottom of the suction motor  20 . The motor control substrate  204  may be coupled to the bottom of the suction motor  20 . 
     The maximum diameter of the motor control substrate  204  may be smaller than the open top of the main body  2  in order to insert the motor control substrate  204  into the main body  2  through the open top of the main body  2 . 
     The suction motor  20  may be seated on the lower motor housing  27  described with reference to  FIG.  5   . 
     If the lower motor housing  27  is integrally formed with the second body  12 , the suction motor  20  can be directly seated on the lower motor housing  27 . However, when the lower motor housing  27  is formed separately from the second body  12 , the suction motor  20  can be seated on the lower motor housing  27  after the lower motor housing  27  is first coupled to the second body  12 . 
     The suction motor  20  may be seated on the lower motor housing  27 , with the motor control substrate  205  and a portion of the suction motor  20  in the lower motor housing  27 . 
     Accordingly, the minimum diameter of the opening of the lower motor housing  27  may be larger than the maximum diameters of the motor control substrate  205  and the suction motor  20 . 
       FIG.  18    is a view when the upper motor housing according to an embodiment of the present invention is inserted into the main body. 
     Referring to  FIGS.  5  and  18   , the upper motor housing  26  can be inserted into the main body  2  through the open top of the main body  2 , with the suction motor  20  in the main body  2 . 
     The maximum diameter of the upper motor housing  26  may be smaller than the open top of the main body  2  in order to insert the upper motor housing  26  into the main body  2  through the open top of the main body  2 . 
     The upper motor housing  26  may cover the suction motor  20  when being inserted in the main body  2 . Further, the upper motor housing  26  may be seated on the lower motor housing  27 . 
     The inner diameter of the upper motor housing  26  may be larger than the outer diameter of the suction motor  20  so that the upper motor housing  26  can cover the suction motor  20 . 
     The upper motor housing  26  may include an air through opening  262 . The air discharged from the second cyclone unit  190  may pass through the air through opening  262 . 
     The upper motor housing  26  may include one or more fastening portions  264  to be fastened to the lower motor housing  27 . 
       FIG.  19    is a view when the flow guide according to an embodiment of the present invention is inserted into the main body. 
     Referring to  FIGS.  5  and  19   , the flow guide  22  can be inserted into the main body  2  through the open top of the main body  2 , with the upper motor housing  26  in the main body  2 . The flow guide  22  can be seated on the upper motor housing  26  when being inserted in the main body  2 . 
     The flow guide  22  may be open at the top and bottom. The flow guide  22  may include a passage wall  220  for forming the first air passage  232  through which the air discharged from the second cyclone unit  190  flows. 
     The passage wall  220  may be formed by making portions of the flow guide  20  radially convex. The flow guide  22  may include a plurality of passage walls  220  that is circumferentially spaced for smooth airflow. 
     The suction motor  20  is positioned inside the flow guide  22 , but the gap between the flow guide  22  and the suction motor  20  should be small in order not to increase the size of the main body  2 . However, when the gap between the flow guide  22  and the suction motor  20  is small, airflow is not smooth. 
     However, when the plurality of passage walls  220  are formed in the convex shape, as in the present invention, a sufficient cross-sectional area of the channel for airflow can be secured by the passage walls  220 , so air can more smoothly flow. 
     In order that the suction motor  20  can be positioned inside the flow guide  22 , the diameters of the open top and the bottom top of the flow guide  22  may be larger than the outer diameter of the suction motor  20 . 
     Further, in order that the flow guide  22  can cover the upper motor housing, the diameters of the open top and the bottom top of the flow guide  22  may be larger than the outer diameter of the upper motor housing. 
     The flow guide  22  may further include a filter support  226  for seating the pre-filter  29 . 
     Further, the flow guide  22  may include fastening portions  222  to be fastened to the motor housings  26  and  27 . 
     The fastening portions  222  may be seated on the upper motor housing  26 . In this state, fasteners can be fitted down into the upper motor housing  26 , the lower motor housing  27 , and the discharged guide  28  through the fastening portions  222 . 
     Further, the flow guide  22  may include fixing ribs  224  for coupling to the filter unit  50 . The fixing ribs  224  may extend at an angle around the flow guide  22  so that the height of the filter unit  50  can be changed when the filter unit  50  rotates. 
       FIG.  20    is a view when the pre-filter according to an embodiment of the present invention is inserted into the main body. 
     Referring to  FIGS.  5 ,  19 , and  20   , the pre-filter  29  may include a grip  29   a . It is possible to hold the grip  29   a  and insert the pre-filter  29  into the main body  2  through the open top of the main body  2 . 
     The pre-filter  29  may be seated on the filter support  226  in the flow guide  22 . 
     The outer diameter of the pre-filter  29  may be smaller than the inner diameter of the flow guide  22  so that the pre-filter  29  can be inserted in the flow guide  22 . 
       FIG.  21    is a view when the filter unit according to an embodiment of the present invention is coupled to the main body and  FIG.  22    is a bottom perspective view of the filter unit according to an embodiment of the present invention. 
     Referring to  FIGS.  21  and  22   , the filter unit  50  may further include an exhaust filter  560  for filtering the air discharged from the suction motor  20  and a filter frame for supporting the exhaust filter  560 . 
     The exhaust filter  560 , for example, may be an HEPA (High Efficiency Particulate Air) filter. 
     The exhaust filter  560  may be positioned around the flow guide  22  when the filter unit  50  is coupled to the main body  2  to prevent an increase in height of the cleaner  1 . That is, the exhaust filter  560 , for example, may be formed in a ring shape and a portion of the flow guide  22  may be positioned in the area defined by the exhaust filter  560 . 
     The exhaust filter  560  and the pre-filter  290  both may be positioned in the area defined by the second body  12 . That is, both of the exhaust filter  560  and the pre-filter  29  may be positioned in the same body. 
     At least a portion of the pre-filter  29  may be positioned in the area defined by the exhaust filter  560  to prevent an increase in height when the exhaust filter  560  and the pre-filter  29  are positioned in the second body  12 . The exhaust filter  560  can surround the pre-filter  29 . 
     According to this configuration, the axis of cyclonic flow in the first cyclone unit  110  can pass through the pre-filter  29  and the filter unit  50 . For example, the axis of the cyclonic flow can pass through the area defined by the exhaust filter  560 . That is, the axis of the cyclonic flow in the first cyclone unit  180  can pass through the open center portion of the exhaust filter  560 . 
     The filer frame may be locked to the fixing ribs of the flow guide  22  between the second body  12  and the flow guide  22 . 
     The filter frame may include an inner frame  501  and an outer frame  540  disposed around the inner frame  501 . 
     The outer side of the inner frame  501  and the inner side of the outer frame  540  are spaced apart from each other and the exhaust filter  560  may be disposed between the inner frame  501  and the outer frame  540 . 
     The filter frame may further include a filter cover  570  that covers the bottom of the exhaust filter  560 . The filter cover  570  may include air openings  572  for passing the air discharged from the suction motor  20 . 
     The filter frame may further include rib receiving portions  574  for seating the fixing ribs  224  of the flow guide  22 . 
     The rib receiving portions  574  may be formed by rib supports  577  on the filter cover  570  and a recession  501   a  formed on the inner frame  501 . 
     The rib receiving portions  574  may extend at an angle around the filter frame so that the fixing ribs  224  can be seated in the rib receiving portions  574 . 
     The filter unit  50  may further include sealing members  530  and  580  for sealing the filter unit  50  and the main body  2  when the filter unit  50  is coupled to the main body  2 . 
     The sealing members  530  and  580  may include an inner sealing member  530  for preventing air from leaking through the gap between the outer side of the flow guide  22  and the inner side of the inner frame  501 . 
     Further, sealing members  530  and  580  may further include an outer sealing member  580  for preventing the air in the second air passage  234  from flowing into the gap between the outer frame  540  and the second body  12  without passing through the exhaust filter  560 . 
     The inner sealing member  530  may be fitted in the inner frame  501  and the outer sealing member  580  may be fitted on the filter cover  570 . 
     The outer sealing member  580  may be seated on a support step  125  formed on the inner side of the second body  12 . The inner sealing member  530  may be seated on the upper end of the flow guide  22 . 
       FIG.  23    is a view before the filter unit according to an embodiment of the present invention is coupled to the flow guide and  FIG.  24    is a view after the filter unit according to an embodiment of the present invention is coupled to the flow guide. 
     A process of combining the filter unit  50  is described with reference to  FIGS.  23  and  24   . 
     A portion of the lower portion of the filter unit  50  is inserted into the second body  12  to couple the filter unit  50  to the main body  2 . 
     Accordingly, the rib receiving portions  574  of the filter unit  50  and the fixing ribs  224  can be aligned. 
     In this state, the fixing ribs  224  are inserted into the rib receiving portions  574  by rotating the filter unit  50  in a predetermined direction. The receiving portions  574  may be positioned higher than the fixing ribs  224  so that the fixing ribs  224  can be easily inserted into the rib receiving portions  574 . 
     Since the fixing ribs  224  extend at an angle, the filter unit  50  is moved down by the fixing ribs  224  when being rotated. 
     Meanwhile, it is possible to rotate the filter unit  50  in another direction to separate the filter unit  50  from the main body  2 . Since the fixing ribs  224  extend at an angle, the filter unit  50  is moved upward by the fixing ribs  224  when being rotated in the direction. When the fixing ribs  224  are separated out of the rib receiving portions  574 , the filter unit  50  and the main body  2  are separated. 
     It is possible to separate the filer unit  50  from the main body  2  by lifting the filter unit  50  in this state. 
       FIGS.  25  and  26    are perspective views of the cover member according to an embodiment of the present invention. 
     Referring to  FIGS.  8 ,  25 , and  26   , the cover member  70  may include a cover body  710  that is in contact with the outer side of the first body  10 . 
     The cover body  710  may include a first cover body  711  that is in contact with the first contact surface  101  and second cover bodies  712  that are disposed at both sides of the first cover body  711  to be brought in contact with the second contact surfaces  102 . 
     The first cover body  711  may include a rounded surface to come in contact with the first contact surface  101 . 
     The second cover bodies  712  may include a flat surface to come in contact with the second contact surfaces  102 . 
     The cover body  710  may further include a receiving space  713  for receiving the second coupling portion  132  of the second body  12 . The receiving space  713  may be formed at the upper center portion of the cover body  710 . 
     The cover body  710  may further include a slot  714  for passing the cover coupling hook  104  and a hook locking portion  715  for locking the cover coupling hook  104  passing through the slot  714 . 
     The slot  714  is disposed at a lower side of the receiving space  713 . Therefore, according to the present invention, the cover coupling hook  104  can be locked to the hook locking portion  715  sequentially through the receiving space  713  and the slot  714 . The second coupling portion  132  of the second body  12  can be inserted into the receiving space  713  without interference with the cover body  710 . 
     The receiving space  713  is a space spaced apart from both sides of the cover body  710 , so when the second coupling portion  132  of the second body  12  is inserted in the receiving space  713 , the cover body  710  cannot be horizontally moved by the second coupling portion  132 . 
     The cover body  710  may further include rib receiving spaces  718  for receiving the locking ribs  103  of the first body  10 , retaining ribs  719  for preventing the locking ribs  103  in the rib receiving spaces  718  from moving away radially from the first body  10 , and rib support sides  720  for supporting the locking ribs  103  in the rib receiving spaces  718 . 
     The retaining ribs  719  may be disposed under inlets  718   a  of the rib receiving spaces  718 . 
     The cover body  710  may further include second handle coupling portions  721  for coupling the handle unit  3 . 
     The second handle coupling portions  721  may include a first extension  722  horizontally extending from the cover body  710  and a second extension  723  extending upward from the first extension  722 . 
     At least a portion of the second extension  723  may face a first surface of the cover body  710 . 
     In the cover body  710  of the present invention, the surface that comes in contact with the first body  10  may be a second surface and the opposite surface to the second surface may be the first surface. 
     Accordingly, an insertion opening  724  is formed between the second extensions  723  and the first surface of the cover body  710 . 
     Insertion ribs  302  (see  FIG.  32   ) of the handle unit  3  may be inserted into the insertion openings  724 . 
     The cover body  710  may include a terminal mount  716  for mounting a main body terminal  80  (see  FIG.  27   ). The terminal mount  716  may include a plurality of horizontally spaced coupling ribs  716   a  and coupling holes  716   b  for coupling the main body terminal  80  may be formed on each of the coupling ribs  716   a.    
     Accordingly, the main body terminal  80  may be coupled to the coupling holes  716   b  between the coupling ribs  716   a.    
     When the main body terminal  80  is coupled to the coupling holes  716   b , the main body terminal  80  cannot be moved downward in the process of coupling the handle terminal  90  of the handle unit  3  to the main body terminal  80 . 
     The vertical length of the coupling ribs  716   a  may be larger than the vertical length of the main body terminal  80 . This is for making the coupling ribs  716   a  guide the handle terminal  90  (see  FIG.  33   ) and the main body terminal  80  when the handle terminal  90  is coupled to the main body terminal  80 . 
     The cover body  710  may further include a terminal support  716   c  for supporting the main body terminal  80 . The terminal support  716   c , for example, may connect the bottoms of the coupling ribs  716   a.    
     Accordingly, it is possible to prevent the main body terminal  80  from being pushed down when coupling the handle terminal  90  of the handle unit  3  to the main body terminal  80  supported by the terminal support  716   c.    
     The cover body  710  may further include one or more guide ribs for guiding the main body wires  171  and  172  (see  FIG.  31   ). 
     The guide ribs may include an upper guide rib  728  and a lower guide rib  728   a.    
     The cover body  710  may further include a fastening portion groove  726  in which the housing fastening portion  108  of the first body  10  is positioned to prevent interference with the housing fastening portion  108 . 
     The cover body  710  may further include a handle hook coupling portion  717  for coupling a handle hook  303  (see  FIG.  32   ) of the handle unit  3 . 
       FIG.  27    is a perspective view showing the main body terminal according to an embodiment of the present invention. 
     Referring to  FIG.  27   , the main body terminal  80  may include a terminal housing  810 . The terminal housing  810  may be open at the top. 
     Coupling protrusions  824  that are fitted into the coupling holes  716   b  of the coupling ribs  716   a  may be formed on both sides of the terminal housing  810 . 
     First lower power terminals  821  and second lower power terminals  822  may be disposed in the terminal housing  810 . The lower power terminals  821  and  822  each may include a pair of terminal pins. The terminal pins of the lower power terminals  821  and  822  may be horizontally spaced apart from each other and arranged in a line. 
     The first lower power terminals  821 , for example, may be connected to the suction motor  20 . The second lower power terminals  822 , for example, may be connected to the first terminal  139 . 
     According to this embodiment, since a signal terminal for transmitting control signals and a control terminal for supplying power are separated and the main body terminal  80  has the power terminals  821  and  822 , an increase in size of the main body terminal  80  can be prevented. 
       FIG.  28    is a vertical cross-sectional view before the cover member according to an embodiment of the present invention is coupled to the main body,  FIG.  29    is a vertical cross-sectional view after the cover member is coupled to the main body, and  FIG.  30    is a horizontal cross-sectional view after the cover member according to an embodiment of the present invention is coupled to the main body. 
     Referring to  FIGS.  26  to  30   , in order to couple the cover member  70  to the first body  10 , the inlets  718   a  of the rib seats  718  of the cover body  710  are aligned with the locking ribs  103  of the first body  10 . 
     In this state, a portion of the second coupling portion  132  of the second body  12  has been positioned in the receiving space  713  of the cover body  710 . 
     In this state, the cover body  710  is brought in contact with the first body  10 . That is, the first cover body  711  is brought in contact with the first contact surface  101  of the first body  10  and the second cover bodies  712  are brought in contact with the second contact surfaces  102  of the first body  10 . Further, the locking ribs  103  of the first body  10  are inserted into the rib seats  718 . 
     In this state, as shown in  FIG.  29   , the cover member  70  is pushed up. Accordingly, the locking ribs  103  of the first body  10  are brought in close contact with the ribs support sides  720  and the cover coupling hook  104  is locked to the hook locking portion  715  through the slot  714  of the cover body  710 . 
     After the cover coupling hook  104  is locked to the hook locking portion  715 , the cover member  70  cannot be moved down. 
     Further, after the locking ribs  103  of the first body  10  are brought in close contact with the rib support sides  720 , the cover member  70  cannot be moved upward due to the locking ribs  103 . 
     Further, the retaining ribs  719  are positioned between the second contact surfaces  102  of the first body  10  and the locking ribs  103 , so the cover member  70  cannot be moved radially outward from the first body  10 . 
       FIG.  31    is a view after the main body terminal is mounted on the cover member. 
     Referring to  FIG.  31   , the main body terminal  80  can be coupled to the cover member  70  after or before the cover member  70  is coupled to the main body  2 , that is, the first body  10 . 
     Then, the main body wires  171  and  172  may be connected to the main body terminal  80 . 
     The main body wires  171  and  172  are guided by the guide ribs  728  and  728   a  and may be connected to the main body terminal  80  from under the main body terminal  80 . 
     The main body wires  171  and  172  may include a pair of first main body wires  171  connected to the motor control substrate  204  to supply power to the suction motor  20  and a pair of second main body wires  172  connected to the first terminal  139 . 
     According to the present invention, since the terminal mount  716  is formed on the first surface of the cover body  710  and the main body terminal  80  is mounted on the terminal mount  716 , when the main body wires  171  and  172  are connected to the bottom of the main body terminal  80 , the cover body  710  is positioned between the first body  10  and the main body terminal  80  and main body wires  171  and  172 . 
     Therefore, even if the first body  10  is made of a transparent or translucent material, the main body wires  171  and  172  and the main body terminal  80  are not seen from the outside of the first body  10 . 
       FIG.  32    is a perspective view of the handle unit according to an embodiment of the present invention. 
     Referring to  FIGS.  10  and  32   , the handle unit  3  may include a handle body  300  that covers the main body  2  in contact with the outer side of the main body  2 . 
     The handle body  300  may include a cover coupling portion  301  for coupling the cover member  70 . 
     The handle unit  3 , for example, may be vertically coupled to the cover member  70  by the cover coupling portion  301 . 
     The cover coupling portion  301  may include a handle hook  303  that is coupled to the handle hook coupling portion  717  of the cover member  70 . 
     The cover coupling portion  301  may further include insertion ribs  302  that are coupled to the second handle coupling portions  721  of the cover member  70 . 
     The handle body  300  may further include a body coupling portion  304  for coupling the second body  12  of the main body  2 . 
     The body coupling portion  304  may include side coupling ribs  304   a  and a top coupling rib  304   b . The side coupling ribs  304   a  can be coupled to the first rib coupling portions  139   a  and the top coupling rib  304   b  can be coupled to the second rib coupling portions  139   b.    
     The handle body  300  may further include housing coupling ribs  308  for coupling the inner housing  610 . 
     The handle unit  3  may further include the handle terminal  90  that is connected to the main body terminal  80  mounted on the cover member  70 . 
     The handle body  300  may further include a terminal coupling portion  305  for coupling the handle terminal  90 . 
     The terminal coupling portion  305  may include a plurality of terminal coupling hooks  305   a  and  305   b  that are coupled to both sides of the handle terminal  90  and coupling protrusions  306  that are coupled to the housing protrusions  914  (see FIG.  34 ) of the handle terminal  90 . 
     The handle terminal  90  is positioned between the terminal coupling hooks  305   a  and  305   b  and coupled to the terminal coupling hooks  305  and  305   b.    
     The handle unit  3  may further include a main PCB (Printed circuit board) unit  340  for controlling the suction motor  20 . 
       FIGS.  33  and  34    are perspective views of the handle terminal according to an embodiment of the present invention. 
     Referring to  FIGS.  33  and  34   , the handle terminal  90  may include terminal housings  901  and  910 . 
     The handle terminal  90  may further include a first upper power terminal  921  and a second upper power terminal  922 . 
     The first upper power terminal  921  can be connected to the first lower power terminal  821  and the second upper power terminal  922  can be connected to the second lower power terminal  822 . 
     Each of the upper power terminals  921  and  922  may include a pair of terminal pins. The terminal pins of the upper power terminals  921  and  922  may be horizontally spaced apart from each other and arranged in a line. 
     The terminal housings  901  and  910  may include a first housing  901  and a second housing  910  coupled to the first housing  901 . 
     Housing hooks  902  are formed at any one of the first housing  901  and the second housing  901  and hook slots  912  for locking the housing hook  902  may be formed at the other one of the first and second housings. In  FIG.  34   , for example, the housing hooks  902  are formed at the first housing  901  and the hook slots  912  are formed at the second housing  910 . 
     The first housing  901  and the second housing  910  may be, for example, horizontally combined. The first housing  901  and the second housing  910  may define terminal receiving spaces. 
     The first housing  901  and the second housing  910  each may include a plurality of separation walls  903  and  913 , respectively, for defining a plurality of divided terminal receiving spaces. 
     Housing protrusions  914  for coupling the coupling protrusions  306  of the handle body  300  may be formed on the second housing  910 . The housing protrusions  914  may be formed on the second housing  910  so that the handle terminal  90  can be stably coupled to the main body. 
     Hook locking grooves  905  for locking the terminal coupling hooks  305   a  and  305   b  may be formed at both sides of the first housing  901 . 
       FIG.  35    is a perspective view of the main PCB unit according to an embodiment of the present invention,  FIG.  36    is a front view of the main PCB unit shown in  FIG.  35   ,  FIGS.  37  and  38    are exploded perspective views of the main PCB unit shown in  FIG.  35   , and  FIG.  39    is a perspective view of a PCB connector of the present invention. 
     In the present invention, a connecting terminal  349   a  is mounted on the connector support  136  of the second body  12 , but a PCB connector is shown in  FIGS.  35  to  38    for helping clearly understanding the combination relationship with the main PCB. 
     Referring to  FIGS.  35  to  39   , the main PCB unit  340  according to this embodiment may include a main PCB  341 . 
     The main PCB  341  may be composed of a plurality of separate PCBs to be disposed inside the second extension  320 . That is, the main PCB  341  may include a first PCB  342  and a second PCB  344 . 
     The first PCB  342  and the second PCB  344  may be erect in parallel with each other. The first PCB  342  and the second PCB  344  may be horizontally spaced apart from each other. 
     One or more connection terminals  348  for connecting the first PCB  342  and the second PCB  344  may be disposed between the PCBs. 
     The main PCB unit  340  may further include a PCB connector  350  for connecting the first PCB  342  and the second PCB  344  to each other. 
     The PCB connector  350  can mechanically connect the first PCB  342  and the second PCB  344  to each other. 
     The PCB connector  350  may include a connector body  351  on which the first PCB  342  and the second PCB  344  may be mounted. 
     The connector body  351  may be formed in a plate shape. The PCB connector  350  may further include one or more spacers  352  for maintaining the first PCB  342  and the second PCB  344  spaced apart from each other. 
     The spacers  352  may protrude downward from the bottom  351   a  of the connector body  351 . 
     A coupling protrusion  353  for coupling the first PCB  342  and the second PCB  344  may be formed on both sides of each of the spacers  352 . Further, protrusion coupling portions  346  and  347  for coupling the coupling protrusions  353  may be formed at the PCBs  342  and  344 . The protrusion coupling portions  346  and  347  may be grooves or holes. 
     In this specification, the PCB connector  350  and the main PCB  341  combined with each other may be called as a main PCB assembly. 
     The width of the spacers  352  may be smaller than the width of the connector body  351  so that the connector body  351  can be seated on the tops of the first PCB  342  and the second PCB  344  when the coupling protrusions  353  of the PCB connector  350  are fitted in the protrusion coupling portions  346  and  347  of the PCBs  342  and  344 . 
     Further, the spacers  352  may be spaced apart from the lateral sides  351   b  and  351   c  of the connector body  351 . 
     When the connector body  351  is seated on the tops of the first PCB  342  and the second PCB  344 , with the coupling protrusions  353  of the PCB connector  350  fitted in the protrusion coupling portions  346  and  347  of the PCBs  342  and  344 , the height of the main PCB unit  340  can be reduced. 
     The connector body  351  may be spaced apart from the tops of the first PCB  342  and the second PCB  344 , with the coupling protrusions  353  of the PCB connector  350  fitted in the protrusion coupling portions  346  and  347  of the PCBs  342  and  344 . 
     Further, when the spacers  352  are spaced apart from the lateral sides  351   b  and  351   c  of the connector body  351 , the width of the main PCB unit  340  can be reduced with the coupling protrusions  353  of the PCB connector  350  fitted in the protrusion coupling portions  346  of the PCBs  342  and  344 . 
     When the PCB connector  350  has the spacers  352 , the spacers  352  may be spaced apart from each other in the longitudinal direction of the connector body  351 . 
     The PCB connector  350  may include a coupling hook  357  for coupling the handle body  332 . 
     The coupling hook  357  may horizontally extend from the connector body  351 . 
     A reinforcing rib  354  may be formed on the bottom  351   a  of the connector body  351  to prevent damage to the coupling hook  357  when the PCB connector  350  and the handle body  332  are coupled by the coupling hook  357 . 
     Though not limited, the reinforcing rib  354  may protrude from the bottom  351   a  of the connector body  351  and may connect the coupling hook  357  and one or more of the spacers  352  to each other. 
     If the PCB connector  350  has a plurality of spacers  352 , the reinforcing rib  354  may connect the coupling hook  357  and the spacer  352 , which is closest to the coupling hook  357  of the spacers  352 , to each other. 
     A light emitting unit  370  for displaying the state of the cleaner  1  may be disposed on any one of the first PCB  342  and the second PCB  344 . 
     For example, the light emitting unit  370  is disposed on the second PCB  344  in  FIG.  38   . The light emitting unit  370  may include one or more LEDs. For example, in  FIG.  38   , the light emitting unit  370  includes a plurality of LEDs  371 ,  372 , and  373  spaced apart from each other in the longitudinal direction of the connector body  351 . 
     Though not limited, it is possible to display the remaining capacity of the battery  40  and the intensity of the suction force of the suction motor  20 , using the LEDs  371 ,  372 , and  373 . 
     The connector body  351  may include a plurality of light holes  355  for passing the light from the LEDs  371 ,  372 , and  373 . 
     The light holes  355  may be spaced apart from each other in the longitudinal direction of the connector body  351 , and when the PCB connector  350  is coupled to the PCBs  342  and  344 , the light holes  355  can be aligned with the LEDs  371 ,  372 , and  373 . 
     The spacers  352  are each positioned between two adjacent light holes  355  not to interfere with the light from the LEDs  371 ,  372 , and  373 . 
     According to this configuration, the spacers  352  do not interfere with the light from the LEDs  371 ,  372 , and  373  and also each prevent interference between the light from adjacent two LEDs. That is, the spacers  352  each separate the paths of the light from two adjacent LEDs. 
     The PCBs  342  and  344  may include extensions  343  and  345 , respective, for supporting a power PCB  380  to be described below (see  FIG.  43   ). The extensions  343  and  345  may include inclined surfaces  343   a  and  345   a , respectively, for supporting at an angle the power PCB  380 . 
     A first connection terminal  349  that is connected to the power PCB  380  (see  FIG.  43   ) may be disposed on any one of the first PCB  342  and the second PCB  344 . 
     For example, the first connection terminal  349  is disposed on a first extension  343  of the first PCB  342  in  FIG.  36   . 
     The connecting terminal  349   a  may be connected to any one of the first PCB  342  and the second PCB  344 . 
     For example, in  FIG.  35   , the connecting terminal  349   a  may be coupled to the second PCB  344 . The second PCB  344  may include a cut groove  344   a  to be coupled to the connecting terminal  349   a  when being vertically moved. 
     Further, the connecting terminal  349   a  may include a first signal terminal  349   b  and a second signal terminal  349   c  spaced apart from the first signal terminal  349   b  so that the second PCB  344  can be fitted on the connecting terminal  349   a.    
     The second PCB  344  can be fitted in between the first signal terminal  349   b  and the second signal terminal  349   c.    
     One or more of the first PCB  342  and the second PCB  344  may be connected to the handle terminal  90  through a wire (not shown). 
     The main PCB unit  340  may further include a PCB cover  360  that covers upper portions of the PCBs  342  and  344  and the PCB connector  350 . 
     The PCB cover  360  may include a top portion  361  covering the top of the PCB connector  350  and a pair of side portions  362  and  363  extending downward from both sides of the top portion  361 . 
     The side portions  362  and  363  can cover not only the PCB connector  350 , but a portion of the upper portions of the PCBs  342  and  344 . 
     The side portions  362  and  363  can prevent the PCBs  342  and  344  coupled to the PCB connector  350  from horizontally moving in the handle  30 . 
     The PCB cover  360  covers the light holes  355  of the connector body  351 . The PCB cover  360  may include a plurality of light transmissive portions  364  so that the light passing through the light holes  355  can pass through the PCB cover  360 . The light transmissive portions  364  are the same in number as the light holes  355  and face the light holes  355 . 
     The light transmissive portions  364  may protrude upward from the top portion  361  of the PCB cover  360 . 
     At least the light transmissive portions  364  of the PCB cover  360  may the transparent or translucent. 
       FIG.  40    is a perspective view of the handle body according to an embodiment of the present invention,  FIG.  41    is a cross-sectional view showing the internal structure of a handle according to an embodiment of the present invention,  FIG.  42    is a cross-sectional view when the main PCB unit is coupled to the handle body according to an embodiment of the present invention,  FIG.  43    is a view showing the power PCB seated on the support rib with the main PCB unit coupled to the handle body according to an embodiment of the present invention, and  FIG.  44    is a view when the handle cover and an operation unit are combined in the state shown in  FIG.  43   . 
     Referring to  FIGS.  40  to  44   , the handle body  300  may include a first handle body  332  and a second handle body  334  coupled to the first handle body  332 . 
     The first handle body  332  forms a portion of the first extension  310  and a portion of the second extension  320 . The second handle body  334  forms the other portion of the first extension  310  and the other portion of the second extension  320 . 
     That is, when the second handle body  334  is coupled to the first handle body  332 , the first handle body  332  and the second handle body  334  form the first extension  310  and the second extension  320 . 
     The first handle body  332  may form not only the handle  30 , but the outer housing  600 . 
     A space  322  for receiving the main PCB unit  340  may be defined in the first handle body  332 . The space  322  is a space substantially defined in the second extension  320 . 
     The first handle body  332  may include a support  324  that supports the main PCB unit  340 . 
     The support  324  may include a seat  324   a  on which the main PCB unit  340  is seated, a first rib  324   b  that supports the first PCB  342  on the seat  324   a , and a second rib  324   c  that supports the second PCB  344  on the seat  324   a.    
     The ribs  324   b  and  324   c  may protrude upward from the seat  324   a.    
     The main PCB unit  340  on the support  324  cannot be moved left and right in  FIG.  40    by the first rib  324   b  and the second rib  324   c.    
     Further, the first rib  324   b  and the second rib  324   c  guide the main PCB assembly that is inserted into the space  322  of the first handle body  332 . 
     The first handle body  332  may further include a plurality of insertion holes  364  for inserting the light transmissive portions  364  of the PCB cover  360 . 
     When being inserted in the insertion holes  327 , the light transmissive portions  364  may be exposed to the outside of the handle  30 . Accordingly, a user can visually check the light from the LEDs  371 ,  372 , and  373  through the light transmissive portions  364 . 
     In this embodiment, since the light transmissive portions  364  are inserted in the insertion holes  327 , it is possible to prevent external moisture or dirt from flowing to the main PCB  341  through the insertion holes  327 . 
     The first handle body  332  may further include a connector coupling portion  325  to which the PCB connector  350  is coupled when the main PCB assembly is inserted into the space  322 . 
     The connector coupling portion  325  may include a hole  325   a  for passing the coupling hook  357  of the PCB connector  350  and a hook locking rib  325   b  for locking the coupling hook  357  that has passed through the hole  325   a.    
     Meanwhile, the power PCB  380  may include a first switch  382  and a second switch  384  for receiving operation instructions from the operation unit  390 . Though not limited, the first switch  382  may receive instructions to turn on/off the suction motor  20  and the second switch  384  may receive instructions to control the intensity of the suction force of the suction motor  20 . 
     The first handle body  332  may further include a support rib  326  for supporting the power PCB  380 . The support rib  326  may extend downward from the connector coupling portion  325 . 
     The support rib  326  may include an inclined surface  326   a  so that the power PCB  380  can be positioned at an angle. Accordingly, when the power PCB  380  is supported by the inclined surface  326   a , the first switch  382  and the second switch  384  are at different heights. 
     When the main PCB unit  340  is coupled to the first handle body  332 , the support rib  326  is positioned between the first PCB  342  and the second PCB  344 . The support rib  326  is spaced apart from the first PCB  342  and the second PCB  344  in order not to damage the main PCB  341  when the main PCB unit  340  is coupled. 
     The inclination angle of the inclined surface  326   a  of the support rib  326  may be the same as the inclination angles  343   a  and  345   a  of the extensions  343  and  345  of the PCBs  342  and  344 . 
     Accordingly, the inclined surfaces  343   a  and  345   a  of the PCBs  342  and  344  and the inclined surface  326   a  of the support rib  326  can support the power PCB  380 . 
     Obviously, the inclined surfaces  343   a  and  345   a  of the PCBs  342  and  344  may be spaced apart from the power PCB  380 , with the power PCB  380  in contact with the inclined surface  326   a  of the support rib  326 . 
     The first handle body  332  may further include a fitting rib  326   b  passing through the power PCB  380  to prevent the power PCB  380  being in contact with the inclined surface  326   a  of the support rib  326  from moving left and right in  FIG.  43   . Further, a slit  386  for passing the fitting rib  326   b  may be formed in the power PCB  380 . 
     The fitting rib  326   b  may be formed at the lower portion of the support rib  326 . When the power PCB  380  is seated on the inclined surface  326   a  of the support rib  326 , the fitting rib  326   b  is fitted in the slit  386 , so it is possible to prevent the power PCB  380  from sliding down on the inclined surface  326   a  of the support rib  326  in the process of assembling the power PCB  380 . 
     The first handle body  332  may further include a top stopper  328  for preventing the power PCB  380  on the support rib  326  from moving up. 
     The first handle body  332  may further include a fastening boss  329  for fastening the power PCB  380  on the support rib  326  using a fastener (not shown) such as a screw. 
     A hole  381  for passing the fastener may be formed through the power PCB  380 . 
     On the other hand, the operation unit  390  may include a support frame  396  for coupling to the second handle body  334  and an operation button  391  combined with the support frame  396 . 
     The operation button  391  may include a first pushing portion  392  for pressing the first switch  382  and a second pushing portion  394  for pressing the second switch  384 . That is, one operation button  391  may include two pushing portions  392  and  394 . 
     According to the present invention, since the power PCB  380  is inclined with the first switch  382  and the second switch  384  at different heights, a user can hold the handle  30  and press the first switch  382  or the second switch  384  by operating the operation button  391  with one finger. Accordingly, the user can more conveniently operate the cleaner. 
     A process of assembling the main PCB unit  340  and the power PCB  380  is described hereafter. 
     First, the PCB cover  360  is inserted into the space  322  of the first handle body  332  such that the light transmissive portions  364  of the PCB cover  360  are inserted into the insertion holes  327  of the first handle body  332 . 
     The main PCB assembly is completed by connecting the first PCB  342  and the second PCB  344  through the PCB connector  350  and then the main PCB assembly is inserted into the space between the PCB cover  360  and the support  324  of the handle body  332 . 
     When the main PCB assembly is inserted, the side portions  362  and  363  of the PCB cover  360  and the first and second ribs  324   b  and  324   c  of the support  324  guide the main PCB assembly. 
     When the coupling hook  357  of the PCB connector  350  is locked to the hook locking rib  325   b  through the hook hole  325   a  while the main PCB assembly is inserted into the space  322  of the first handle body  332 , coupling of the main PCB assembly is completed. 
     In this state, as in  FIG.  43   , the power PCB  380  is seated on the support rib  326  and then the power PCB  380  may be fixed to the first handle body  332  by a fastener. 
     The power PCB  380  is fixed to the first handle body  332  substantially at the same height as the main PCB  341 . 
     Next, as in  FIG.  44   , the second handle body  334  is coupled to the first handle body  332  and then the operation unit  390  may be coupled to the second handle body  334 . 
     According to the present invention, the main PCB  341  is divided into two PCBs and inserted in the first handle body  332 , and the size of the main PCB  341  can be reduced. 
     In particular, the two PCBs are erect in parallel with each other and inserted in the handle body, the size of the main PCB unit  340  can be minimized. 
     Further, since the main PCB assembly can be coupled to the first handle body  332  while it is inserted into the space  322  of the first handle body  332  with the two PCBs connected to the PCB connector  350 , the structures for fixing the two PCBs to each other and fixing the two PCBs to the first handle body  332  are simple and a user can easily assemble them. 
       FIG.  45    is a view after the handle terminal and the main PCB unit are installed in the handle unit according to an embodiment of the present invention and FIG.  46  is a view when the handle unit according to an embodiment of the present invention is coupled to the main body after being assembled. 
     Referring to  FIGS.  45  and  46   , the handle  3  can be coupled to the main body  2 , with the main PCB unit  340 , the operation unit  390 , and the handle terminal  90  combined with the handle body  300 . 
     The handle unit  3  may be slide-coupled to the main body  2  without screws. For example, the handle unit  3  can be coupled to the main body  2  by bringing the handle unit  3  in contact with the main body  2  and then sliding down the handle unit  3 . 
     A direction in which the handle unit  3  is coupled to the main body  2  may be referred to as a second coupling direction. The suction unit  5  may be coupled to the main body  2  in a first coupling direction along a first axis, and the handle unit  3  may be coupled to the main body  2  in the second coupling direction along a second axis. The first axis may pass through the main body  2  and cross the second axis. That is, the second coupling direction may cross a first coupling direction in which the suction unit  5  is coupled to the main body  2 . The second coupling direction may be substantially perpendicular to the first coupling direction. 
     According to the present invention, the handle unit  3  is coupled to both of the second body  12  of the main body  2  and the cover member  70 . 
     The handle unit  3  is simultaneously coupled to the second body  12  and the cover member  70 . 
     The handle unit  3  may further include a plurality of handle wires  942 ,  944 , and  946 . The handle wires  942 ,  944 , and  946  may be connected to the main PCB unit  340 . 
     The main PCB unit  340  may be connected to the battery  40 . Further, the main PCB unit  340  may receive operation signals from the operation unit  390 . The main PCB unit  340  may supply power to the suction motor  20  and/or the first terminal  130  or control the intensity of the suction force of the suction motor  20  on the basis of the input operation signals. 
     The handle wires  942 ,  944 , and  946  may include first handle wires  942  connected to the handle terminal  90  to supply power to the first terminal  139  and second handle wires  944  connected to the handle terminal  90  to supply power to the suction motor  20 . 
     When the handle terminal  90  is connected to the main body terminal  80 , the first handle wires  942  may be connected to the first main body wires  171  of the main body  2  and the second handle wires  944  may be connected to the second main body wires  172  of the main body  2 . 
     The handle wires  942 ,  944 , and  946  may further include terminal connection wires  946  connected to the charging stand connection terminals  628 . 
     The handle unit  3  may further include wire guides  309  that guide the handle wires to prevent the handle wires  942 ,  944 , and  946  from getting entangled. 
     First, a process of coupling the handle unit  3  to the cover member  70  is described. 
       FIG.  47    is a vertical cross-sectional view before the handle unit according to an embodiment of the present invention is coupled to the cover member,  FIG.  48    is a vertical cross-sectional view after the handle unit according to an embodiment of the present invention is coupled to the cover member, and  FIG.  49    is a horizontal cross-sectional view after the handle unit according to an embodiment of the present invention is coupled to the cover member. 
     Referring to  FIGS.  25  and  47  to  49   , in order to couple the handle unit  3  to the cover member  70 , the insertion ribs  302  of the handle unit  3  may be aligned with the insertion openings  724  of the handle coupling portions  721  of the cover body  710 . 
     In this state, when the handle unit  3  is pushed down, the insertion ribs  302  of the handle unit  3  are brought in contact with the first extensions  722  of the handle coupling portions  721  through the insertion openings  724  and locked to the second extensions  723 . 
     Further, the handle hook  303  of the handle unit  3  is locked to the handle hook coupling portion  717  of the cover body  710 . Further, the handle terminal  90  is connected to the main body terminal  80 . That is, the handle terminal  90  is connected to the main body terminal  80  when the handle unit  3  is pushed down to be coupled to the cover member  70 . 
     The coupling ribs  716   a  of the cover member  70  guide the handle terminal  90  and the main body terminal  80 . Further, when the handle terminal  90  is coupled to the main body terminal, the coupling ribs  716   a  can cover portions of both sides of the handle terminal  90 . 
     Therefore, according to the present invention, since the handle terminal  90  and the main body terminal  80  are connected to each other when the handle unit  3  is coupled to the cover member  70 , the process of combining the handle terminal  90  and the main body terminal  80  can be removed, so a user can more conveniently combine the terminals. 
     Since the handle unit  3  is slide-coupled to the cover body  70  by the insertion ribs  302  of the handle unit  3  and the handle coupling portions  721  of the cover member  70 , it is possible to stably combine the handle terminal  90  and the main body terminal  80 . 
     Next, a process of coupling the handle unit  3  to the second body  12  is described. 
       FIG.  50    is a vertical cross-sectional view before the handle unit according to an embodiment of the present invention is coupled to the second body and  FIG.  51    is a vertical cross-sectional view after the handle unit according to an embodiment of the present invention is coupled to the second body. 
     Referring to  FIGS.  10 ,  32 ,  50 , and  51   , in order to couple the handle unit  3  to the second body  12 , the side coupling ribs  304   a  of the handle unit  3  are aligned with the first rib coupling portions  139   a  and the top coupling rib  304   b  is aligned with the second rib coupling portions  139   b . Further, the second PCB  344  is aligned with the space between the first signal terminal  349   b  and the second signal terminal  349   c  of the connecting terminal  349   a.    
     In this state, when the handle unit  3  is pushed down, the side coupling ribs  304   a  are fitted to the first rib coupling portions  139   a  and the top coupling rib  304   b  is fitted to the second rib coupling portions  139   b . Further, the second PCB  344  is inserted into the space between the first signal terminal  349   b  and the second signal terminal  349   c  of the connecting terminal  349   a  and comes in contact with the signal terminals  349   b  and  349   c.    
     According to the present invention, since the second PCB  344  can be connected to the connecting terminal  349   a  only by pushing down the handle unit  3  being in contact with the main body  2 , it is possible to reduce the inconvenience that a user has to connect the connecting terminal  349   a  and the main PCB  341  to each other. 
     Further, since it is possible to couple the handle unit  3  to the main body  2  even without using screws, so the assembly process is simplified. 
       FIG.  52    is a view when the inner housing combined with a body cover according to an embodiment of the present invention is coupled to the main body,  FIG.  53    is a perspective view after the cover member according to an embodiment of the present invention is coupled to the main body,  FIG.  54    is a perspective view after the inner housing is coupled to the main body combined with the cover member according to an embodiment of the present invention. 
     Referring to  FIGS.  52  to  55   , it is possible to couple the inner housing  610  combined with the body cover  16  to the main body  2 , with the handle unit  3  coupled to the main body  2 . 
     The hinge  162  of the body cover  16  may be coupled to the hinge coupling portions  620  of the inner housing  610 . 
     When the cover member  70  is coupled to the first body  10 , the bottom  729  of the cover body  70  is spaced apart from the bottom of the first body  10 . Further, the bottom  729  of the cover member  70  is positioned higher than the lower end of the housing fastening portion  108 . 
     A space for the hinge coupling portions  620  of the inner housing  610  is defined between the bottom  729  of the cover body  70  and the lower end of the first body  10 . 
     Accordingly, the inner housing  610  can be received in the outer housing  600  and the hinge coupling portions  620  can be in contact with the bottom  729  of the cover member  70 . 
     A fastening rib  622  for fastening the housing fastening portion  108  of the first body  10  is disposed between the hinge coupling portions  620  of the inner housing  610 . The fastening rib  622  connects the hinge coupling portions  620  to each other. 
     The fastening rib  622  may include a fastening hole  624  for a fastener S. 
     A portion of the fastening rib  622  is positioned in the guide groove  107  of the first body  10 . When being positioned in the guide groove  107 , the fastening rib  622  is in contact with the bottom of the housing fastening portion  108 . 
     In this state, it is possible to fasten the fastening rib  622  and the housing fastening portion  108  to each other using the fastener S from under the fastening rib  622 . 
     The inner housing  610  may include rib coupling portions  626  for coupling the housing coupling ribs  308  of the handle unit  3 . For example, the rib coupling portions  626  may be formed at the hinge coupling portions  620 , respectively. 
     Accordingly, the inner housing  610  can be coupled to the first body  10  and the handle unit  3 . 
       FIG.  56    is a perspective view when the battery is coupled to the battery housing according to an embodiment of the present invention and  FIG.  57    is a vertical cross-sectional view after the battery is coupled to the battery housing according to an embodiment of the present invention. 
     Referring to  FIGS.  56  and  57   , the inner housing  610  provides a battery chamber  611  for receiving the battery  40 . 
     Further, the inner housing  610  may include a locking rib  640  for coupling the battery  40 . 
     The battery  40  may include a plurality of coupling portions  470  and  474 . The coupling portions  470  and  474  may include a first coupling portion  470  disposed on a first side of the battery  40  and a second coupling portion  474  disposed on a second side of the frame  410 . The first coupling portion  470  and the second coupling portion  474 , for example, may be positioned opposite to each other. 
     The first coupling portion  470  may include a first hook  472 . When the battery  40  is coupled, the first hook  472  of the first coupling portion  470  can be locked to the locking rib  640  through the space  622 . 
     The second coupling portion  474  is integrally formed with a frame  410  that forms the outer shape of the battery  40  and can be elastically bent by external force. 
     An extension  475  horizontally extends from the bottom of the frame  410  and the second coupling portion  474  extends upward from the end of the extension  475 . The second coupling portion  474  is spaced apart from the outer surface of the frame  410  by the extension  475 . 
     That is, a space for bending is defined between the frame  410  and the second coupling portion  474 . The second coupling portion  474  can be elastically bent toward the fame  410  by the space. 
     The second coupling portion  474  may include a second hook  476 . The second hook  476  may be thinner than other portion of the second coupling portion  474 . 
     The outer housing  600  has a first exposing hole  602  and the inner housing  610  has a second exposing hole  612  to expose the second coupling portion  474  to the outside so that the second coupling portion  474  can be operated with the battery  40  in the battery chamber  611 . 
     Further, a coupling slot  614  for coupling the second hook  476  of the second coupling portion  474  may be formed over the second exposing hole  612  of the inner housing  610 . The coupling slot  614  may be a hole or a groove. 
     The second hook  476  of the second coupling portion  474  can be inserted into the locking slot  614  when being inserted in the inner housing  610 . 
     A protrusion  450  is formed on the top of the battery  40  and the battery terminals  490  may be positioned in the protrusion  450 . 
     The battery housing  60  may include a receiving portion  660  for receiving the protrusion  450 . The receiving portion  660  may include a battery connection terminal  670  for coupling the battery terminals  490 . The battery connection terminal  670  may be connected to the main PCB  341 . 
     In this embodiment, since the battery connection terminal  670  passes through the protrusion  450  when the protrusion  450  is inserted into the receiving portion  660 , the receiving portion  660  guides the protrusion  450  so that the battery connection terminal  670  can stably pass through the protrusion  450 . 
     In order to separate the battery  40  from the battery housing  60 , a user can insert a finger into the space  622  defined between the hinge coupling portions  620 . 
     Further, the user can press the first coupling portion  470  toward the frame  410  with the finger. Accordingly, the first hook  472  of the first coupling portion  470  is unlocked from the locking rib  640 . 
     Further, the user can unlock the second coupling portion  474  from the battery housing  60  by operating the second coupling portion  474  exposed to the outside of the battery housing  60 . 
     In detail, the user presses the second coupling portion  474  toward the frame  410 . Accordingly, the second coupling portion  474  is bent toward the frame  410  by the space between the frame  410  and the second coupling portion  474 . Therefore, the second hook  476  is pulled out of the coupling slot  614 . 
     As a result, the first coupling portion  470  and the second coupling portion  474  are moved toward each other by a user, whereby they are unlocked. 
     Accordingly, a user can unlock the first coupling portion  470  and the second coupling portion  474  using two fingers, so the user can easily separate the battery  40  downward from the battery housing  60 . 
     According to the present invention, since the battery  40  can be separated from the battery housing  60 , it is possible to place only the battery  40  on the charging stand to charge it. 
       FIG.  58    is a conceptual diagram schematically showing the combination structures of the cleaner of the present invention. 
     Referring to  FIGS.  1  to  58   , the present invention may include, as described above, the main body  2 , the handle unit  3 , and the battery  40 . 
     The cleaner  1  of the present invention have largely three combination structures for power supply. 
     The first combination structure is the structure for combining the battery  40  and the handle unit  3 . The battery  40  is separably coupled to the handle unit  3  in the present invention. 
     When the battery  40  is coupled to the handle unit  3 , the battery  40  is connected to the main PCB unit  340 . The battery  40  and the handle unit  3  are combined by mechanically combining the battery terminal  490  and the battery connection terminal  670 . Obviously, since the main PCB unit  340  is connected to the battery connection terminal  670  through wires, when the battery terminal  490  and the battery connection terminal  670  are combined, they are electrically connected, so the power from the battery  40  can be supplied to the main PCB unit  340 . 
     The second combination structure of the present invention is the structure for combining the handle unit  3  and the main body  2 . 
     When the handle unit  3  is vertically slide-coupled to the main body  2 , with the main PCB unit  340  connected to the handle terminal  90 , the handle terminal  90  and the main body terminal  80  are mechanically combined. Obviously, when the handle terminal  90  and the main body terminal  80  are combined, they are electrically connected, so power can be supplied to the main body terminal  80  through the handle terminal  90  from the main PCB unit  340 . 
     The handle unit  3  has the cover coupling portion  301  and the cover member  70  has the insertion openings  724  and the handle hook coupling portion  717  for coupling the cover coupling portion  301 . Accordingly, the handle unit  3  can be stably combined with the cover member  70 , and in this process, the handle terminal  90  can be accurately coupled to the main body terminal  80 . That is, the cover coupling portion  301 , the insertion openings  724 , and the handle hook coupling portion  717  guide the handle terminal  90  and the main body terminal  80  that are combined with each other, so an assembly error of the handle terminal  90  and the main body terminal  80  is reduced. 
     Since the handle unit  3  has the body coupling portion  304  and the second body  12  of the main body  2  has the first handle coupling portions  139   a  and  139   b , the handle unit  3  can be stably combined with the second body  12 , and in this process, the handle terminal  90  can be accurately coupled to the main body terminal  80 . That is, the body coupling portion  304  and the first handle coupling portions  139   a  and  139   b  also guide the handle terminal  90  and the main body terminal  80  that are combined with each other, so an assembly error of the handle terminal  90  and the main body terminal  80  is reduced. 
     Further, as described above, the coupling ribs  716   a  for coupling the main body terminal  80  and the terminal support  716   c  for supporting the bottom of the main body terminal  80  are formed on the cover member  70 . Accordingly, the main body terminal  80  is not pushed down when the handle terminal  90  is coupled to the main body terminal  80 , so the assembly error of the handle terminal  90  and the main body terminal  80  is reduced. 
     The third combination structure of the present invention is the combination structure among the main body wires electrically connected to the main body terminal  80 , the suction motor  20  in the main body  2 , and the first terminal  139 . This combination structure is an electrically connected structure positioned in the main body  2  and achieved by the main body wires. The power supplied to the main body terminal  80  can be finally supplied to the suction motor  20  and the first terminal  139  by the electrically combined structure. 
     According to the combination structures of the present invention, air channels are formed only in the main body  2  and are not formed in the handle unit  3 . 
     Accordingly, there is no need for a structure for sealing the boundary between the handle unit  3  and the main body  2  when the handle unit  3  is coupled to the main body  2 . Therefore, the structure for coupling the handle unit  3  to the main body  2  is simple and the coupling is easy. 
     In the present invention, the suction motor  20  and the first terminal  139  receive power from the battery  40 , so they may be called power receiving components. 
     On the other hand, although the main body terminal  80  is mounted on the cover member  70  and the handle terminal  90  is connected to the main body terminal  80  in the embodiments described above, the connecting terminal  349   a  of the second body of the main body may include not only the signal terminal for transmitting control signals of the suction motor  20 , but a power terminal for power supply. Accordingly, the main PCB unit  340  may also have the power terminal. 
     According to this configuration, the main body terminal  80  is removed from the main body  2 , the handle terminal  90  is removed from the handle unit  3 , and the main PCB unit  340  is connected to the connecting terminal  349   a , so control signals and power can be transmitted to the suction motor by the main PCB unit  340  and the connecting terminal  349   a  and power can be transmitted to the first terminal  349 . 
     According to the invention, since the main body is assembled, the handle unit is assembled, and the handle unit is slide-coupled to the main body, the process of combining the main body unit and the handle unit using screws is removed, so the cleaner can be more simply assembled. 
     Further, since the handle terminal is mounted on the handle unit, the main body terminal is mounted on the main body unit, and the main body terminal is coupled to the handle terminal when the handle unit is slide-coupled to the main body, there is no need for a process of separately connecting the terminals. 
     Further, since the main body has the connecting terminal, the handle unit has the main PCB, and the main PCB is coupled to the connecting terminal when the handle unit is slide-coupled to the main body, there is no need for a process of connecting the main PCB to the connecting terminal. 
     Further, since the handle terminal and the main body terminal include only power terminals without a signal terminal for controlling the suction motor, it is possible to prevent an increase in size of the handle terminal and the main body terminal. 
     Further, since the main body terminal is mounted on the cover member and the wires connected to the main body terminal are guided by the cover member, the wires cannot be seen from the outside through the dust container even if the dust container is made of a transparent material or a translucent material.