Patent Publication Number: US-11661697-B2

Title: Automatic detergent supply apparatus and washing machine having the same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a Continuation application of U.S. application Ser. No. 16/848,431, filed Apr. 14, 2020, which is a Continuation application of U.S. application Ser. No. 15/369,018, filed Dec. 5, 2016, which is a Continuation application of U.S. application Ser. No. 14/902,844, filed Jan. 4, 2016, and is based upon a 35 USC 371 of International Patent Application No. PCT/KR2014/005765, filed Jun. 27, 2014, which claims priority to Korean Patent Application No. 10-2013-0077669, filed Jul. 3, 2013; Korean Patent Application No. 10-2014-0015709, filed Feb. 11, 2014; and Korean Patent Application No. 10-2014-0079825, Jun. 27, 2014, the entire contents of all of which are incorporated herein by reference. 
    
    
     BACKGROUND 
     The present disclosure relates to a detergent supply apparatus disposed on a bottom inside a body and a washing machine having the same. 
     Generally, washing machines are apparatuses which wash laundry by rotating a rotating tub having a cylindrical shape filled with the laundry and washing water. In types of such washing machines, there are drum type washing machines in which a rotating tub is horizontally disposed to allow laundry to be lifted upward and dropped along an inner circumference of the rotating tub while the rotating tub rotates in forward and backward directions with respect to a horizontal axis to wash the laundry and vertical-axial type washing machines in which a rotating tub including a pulsator therein is vertically disposed to wash laundry using water currents generated by the pulsator while the rotating tub rotates in forward and backward directions with respect to a vertical axis. 
     A drum type washing machine includes a housing which forms an external shape, a cylindrical-shaped water tub installed in the housing and filled with washing water, a rotating tub rotatably installed in the water tub to wash laundry, a driving motor disposed in the rear of the water tub to rotate the rotating tub, and a door installed in front of the housing. 
     A detergent supply apparatus which is configured to allow a detergent to be evenly mixed with supplied water to be supplied together during a process of supplying the water into the water tub is installed above the drum type washing machine. 
     The detergent supply apparatus is built in a front portion of a top of the body of the drum type washing machine and includes a box-shaped case with an open front and a drawer-shaped detergent box mounted to be inserted into the case through the open front of the case. 
     Since the detergent box has a plurality of detergent insertion spaces divided therein to allow a user to insert a detergent according to types thereof, it is necessary to insert the detergent necessary for washing to wash for every washing, thereby deteriorating usability. 
     Also, such detergent supply type has a structure to allow the detergent box to be withdrawn forward from the top of the body, is not easy to operate an operation panel located on the top of body, and has a poor external shape. 
     SUMMARY 
     It is an aspect of the present disclosure to provide a washing machine in which a detergent supply apparatus is located on a bottom inside a body to automatically supply a liquid detergent and a fabric softener. 
     It is another aspect of the present disclosure to provide a washing machine in which a detergent supply apparatus is located on a bottom inside a body to improve an external shape. 
     It is still another aspect of the present disclosure to provide an automatic detergent supply apparatus with a massive storage of a liquid detergent to increase usability and a washing machine including the same. 
     It is yet another aspect of the present disclosure to provide a detergent supply apparatus capable of allowing a detergent box thereof to be withdrawn using one touch to increase usability of a product and a washing machine including the same. 
     In accordance with one aspect of the present disclosure, a washing machine includes a body with an opening portion formed in a front side thereof, a door provided to open and close the opening portion of the body, a door guide provided on the opening portion, and a detergent supply apparatus which includes a detergent box provided on a bottom of the door guide to be withdrawable toward a center of the opening portion and a detergent supply pump provided to discharge a detergent in the detergent box. 
     The door guide may include an incision portion formed by cutting at least a part thereof. 
     The door guide may be integrally formed to extend along a circumference of the opening portion. 
     The incision portion may include an opening formed in the door guide and a detergent box cover mounting portion connected to the opening and formed to correspond to the detergent box cover. 
     The incision portion may be disposed at a bottom of the door guide. 
     The incision portion may be disposed on one side of a circumferential surface of the door guide along a circumferential direction thereof. 
     The detergent supply apparatus may include a housing disposed at a bottom inside the body and the detergent box detachably provided in the housing to store the detergent therein. 
     The detergent box may include a detergent box body provided with a first accommodating portion configured to store a first detergent therein and a second accommodating portion configured to store a second detergent therein and a detergent box cover coupled with a top end of the detergent box body to be slidable. 
     The detergent box cover may move in front of the body and functions as a handle. 
     The detergent box cover may be formed of the same material as the door guide. 
     The detergent box cover may be located on the same plane as the door guide. 
     The detergent box cover may be provided to be slidable in a circumferential direction of the door guide. 
     The detergent box cover may include a magnet provided to be detachably coupled with the detergent box body. 
     The washing machine may include a front frame disposed to be separate from the front side to support the door guide. Here, the front frame may include a pump installation opening formed by cutting at least a part of a bottom thereof to install the detergent supply apparatus. 
     The detergent box may be provided to be inserted or withdrawn in a vertical direction of the housing. The washing machine may further include a mounting sensor which senses mounting of the detergent box. 
     The detergent box body may include a detergent supply portion provided to supply the first and second detergents to the first accommodating portion and the second accommodating portion, respectively, a detergent ejection portion provided to allow the first and second detergents to be ejected from the first accommodating portion and the second accommodating portion, and an air through-hole formed to penetrate the first accommodating portion and the second accommodating portion and provided to uniformly maintain an internal pressure. 
     The detergent ejection portion may include a valve provided between the accommodating portion and the housing to control an ejection amount of the detergent. 
     The housing may include a first reservoir provided to be connectable with the first accommodating portion and a second reservoir provided to be connectable with the second accommodating portion. 
     The detergent supply pump may include first and second chambers connected to the first and second reservoirs, respectively, a piston member provided to apply pressure to the first and second chambers, a motor provided to drive the piston member, and gear member which connects the motor with the piston member. 
     The gear member may include a worm shaft which is connected to the motor and rotates, a worm gear which is engaged with the worm shaft and rotates, and a cam member which is connected to the worm gear and moves the piston member. 
     The detergent supply pump may be provided with a first outlet and a second outlet connected to the first and second chambers and provided to discharge the first and second detergents. 
     The detergent supply pump may further include a sensor for measuring whether the detergents are present in the first and second chambers. 
     The body may include a tub which stores washing water therein, a drainage apparatus configured to forcibly discharge the washing water of the tub outward, and a circulating pump provided in the drainage apparatus to circulate the washing water of the tub. Here, the detergent supply apparatus may include a first connection pipe which connects the tub with the drainage apparatus and a second connection pipe which connects the tub with the circulating pump, and the first outlet and the second outlet may be connected to the first connection pipe. 
     The detergent box may include a popup unit to be able to pop up or pass through from the incision portion. 
     The popup unit may include a popup supporting groove formed on a bottom surface of the detergent box and a popup member elastically deformed to be coupled with the popup supporting groove. 
     The popup member may include a first popup portion coupled with a bottom surface of the body, a second popup portion provided to be movable from an inside to an outside of the first popup portion, and a popup spring which elastically supports a space between the first popup portion and the second popup portion. 
     The popup unit may further include a latch unit which locks or unlocks the detergent box. 
     In accordance with another aspect of the present disclosure, a washing machine includes a body with an opening portion formed in a front side thereof, a door provided to open and close the opening portion, a door guide provided on the opening portion, and a detergent box separably provided through an incision portion formed by cutting at least a part of the door guide. 
     The detergent box may be provided to be withdrawable toward a center of the opening portion. 
     The incision portion may be disposed at a bottom of the door guide. 
     The door guide may be integrally formed to extend toward the rear of the opening portion. 
     The detergent box may include a popup unit to be able to pop up or pass through from the incision portion. 
     The detergent box may include a detergent box body provided with at least one of a first accommodating portion configured to store a first detergent therein and a second accommodating portion configured to store a second detergent therein and a detergent box cover coupled with a top end of the detergent box body to be slidable. 
     The detergent box cover may include a magnet provided to be detachably coupled with the detergent box body. 
     The detergent box cover may be formed of the same material as the door guide. 
     The detergent box cover may be located on the same plane as the door guide. 
     The detergent box body may include a detergent supply portion provided to supply one of the first and second detergents to the accommodating portion, a detergent ejection portion provided to allow the detergent to be ejected from the accommodating portion, and an air through-hole formed to penetrate the accommodating portion and provided to uniformly maintain an internal pressure. 
     The detergent ejection portion may include a valve provided between the accommodating portion and the housing to control an ejection amount of the detergent. 
     The washing machine may further include a detergent supply pump provided to discharge the detergent in the detergent box. 
     The washing machine may include a pump connecting member provided to connect the detergent box with the detergent supply pump. 
     The detergent supply pump may include at least one chamber connected to the detergent ejection portion, a piston member provided to apply a pressure to the at least one chamber, a motor provided to drive the piston member, and a gear member which connects the motor with the piston member. 
     The gear member may include a worm shaft which is connected to the motor and rotates, a worm gear which is engaged with the worm shaft and rotates, and a cam member which is connected to the worm gear and moves the piston member. 
     The detergent supply pump may be provided with at least one outlet connected to the at least one chamber and provided to discharge one of the first and second detergents. 
     The detergent supply pump may further include a sensor for measuring whether there is the detergent accommodated in the at least one chamber. 
     In accordance with still another aspect of the present disclosure, a washing machine includes a body with an opening portion formed in a front side thereof, a door provided to open and close the opening portion of the body, and a door guide provided on the opening portion. Here, the door guide includes an incision portion formed by cutting at least a part thereof, the washing machine includes a detergent box provided to pop up or pass through from the incision portion, and a detergent box cover which covers a top end of the detergent box is provided to correspond to the incision portion and the detergent box is withdrawable through the incision portion. 
     The incision portion may be provided at a bottom of the door guide. 
     The incision portion may be disposed on one side of a circumferential surface of the door guide along a circumferential direction thereof. 
     The detergent box cover may include a magnet provided to be detachably coupled with the detergent box. 
     The detergent box may include a detergent box body provided with at least one of a first accommodating portion configured to store a first detergent therein and a second accommodating portion configured to store a second detergent therein. 
     The washing machine may further include a detergent supply pump provided to discharge the detergent in the accommodating portion. 
     According to embodiments of the present disclosure, a detergent supply apparatus is located on a bottom inside a body, thereby improving an external shape. 
     Also, a detergent supply apparatus which stores a large amount of a liquid detergent and a fabric softener is located on a bottom inside a body to automatically supply them, thereby increasing usability. 
     Also, a detergent box of a detergent supply apparatus is withdrawn using one touch, thereby increasing usability of a product. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a perspective view of a drum type washing machine in accordance with one embodiment of the present disclosure, 
         FIGS.  2  and  3    are perspective views of the drum type washing machine mounted with a detergent supply apparatus in accordance with one embodiment of the present disclosure, 
         FIG.  4    is a cross-sectional view illustrating a portion taken along line A-A′ shown in  FIG.  1   , 
         FIG.  5    is a view of a detergent box of the detergent supply apparatus installed in an incision portion in accordance with one embodiment of the present disclosure, 
         FIG.  6    is a perspective view of the detergent supply apparatus in accordance with one embodiment of the present disclosure, 
         FIG.  7    is a view of the detergent supply apparatus and a drainage apparatus in accordance with one embodiment of the present disclosure, 
         FIG.  8    is an exploded perspective view of the detergent box and a housing in accordance with one embodiment of the present disclosure, 
         FIG.  9    is an exploded perspective view of the detergent box, the housing, and a detergent supply pump in accordance with one embodiment of the present disclosure, 
         FIG.  10    is a configuration diagram illustrating an inside of the detergent box coupled with the housing in accordance with one embodiment of the present disclosure, 
         FIG.  11    is a cross-sectional view illustrating a portion taken along line B-B′ shown in  FIG.  7   , 
         FIG.  12    is a view illustrating a state of supplying a detergent from the detergent box mounted in the housing in accordance with one embodiment of the present disclosure, 
         FIG.  13    is a view of a sensor portion installed in the detergent supply pump in accordance with one embodiment of the present disclosure, 
         FIG.  14    is a configuration diagram illustrating an inside of the detergent supply pump in accordance with one embodiment of the present disclosure, 
         FIG.  15    is a schematic diagram illustrating an operation of the detergent supply apparatus in accordance with one embodiment of the present disclosure, 
         FIGS.  16  and  17    are schematic diagrams of a washing machine in which a detergent box of a detergent supply apparatus is mounted in accordance with another embodiment of the present disclosure, 
         FIG.  18    is a schematic diagram of a washing machine in which a detergent box of a detergent supply apparatus is mounted in accordance with another embodiment of the present disclosure, 
         FIG.  19    is a schematic perspective view illustrating a detergent supply apparatus in accordance with still another embodiment of the present disclosure, 
         FIG.  20    is a schematic perspective view illustrating a state in which a detergent box of a detergent supply apparatus pops up or passes through in accordance with still another embodiment of the present disclosure, 
         FIG.  21    is a schematic front view of a washing machine in which the detergent supply apparatus is mounted in accordance with still another embodiment of the present disclosure, 
         FIG.  22    is a schematic perspective view of a detergent supply apparatus in accordance with still another embodiment of the present disclosure, 
         FIG.  23    is a schematic front view of the detergent supply apparatus in accordance with still another embodiment of the present disclosure, 
         FIG.  24    is a schematic perspective view illustrating the detergent supply apparatus and a detergent box in accordance with still another embodiment of the present disclosure, 
         FIG.  25    is a schematic cross-sectional view of a popup unit of the detergent supply apparatus in accordance with still another embodiment of the present disclosure, 
         FIG.  26    is a schematic cross-sectional view of a latch unit of the detergent supply apparatus in accordance with still another embodiment of the present disclosure, 
         FIG.  27    is a schematic diagram of a washing machine in which a detergent box of a detergent supply apparatus is mounted in accordance with still another embodiment of the present disclosure, 
         FIG.  28    is a schematic perspective view illustrating the detergent box of the detergent supply apparatus and a detergent box cover in accordance with still another embodiment of the present disclosure, and 
         FIG.  29    is a schematic perspective view of a washing machine in which the detergent box of the detergent supply apparatus and a detergent box cover are mounted in accordance with still another embodiment of the present disclosure. 
     
    
    
     DETAIL DESCRIPTION 
     Hereinafter, embodiments of the present disclosure will be described in detail with reference to the attached drawings. 
     As shown in  FIGS.  1  to  5   , a washing machine  1  includes a body  10  which forms an external shape, a tub  13  installed in the body  10  to store washing water, and a drum  14  (which may be cylindrical) rotatably installed in the tub  13  and having a plurality of spin-drying holes  14   a  formed on a wall thereof. 
     An opening portion  11   a  is formed in a front side  11  of the body  10  to allow laundry to be washed to be inserted into or withdrawn from the tub  13  and the drum  14 . 
     Also, a door  12  is installed at the front side  11  of the body  10  to open and close the opening portion  11   a.    
     The door  12  may include a first door frame  12   a  and a second door frame  12   b  provided to form an external shape and a door glass portion  12   c  coupled with the rears of the first door frame  12   a  and second door frame  12   b  to be inserted into the body  10 . 
     The first door frame  12   a  forms a front surface and the second door frame  12   b  forms a rear surface. 
     The door glass portion  12   c  is coupled with a center of the second door frame  12   b  to allow an inside of the drum  14  to be seen, thereby allowing a user to check a washing process with naked eyes during washing. Here, the door glass portion  12   c  may be coupled in a shape of protruding toward the rear of the body  10 . 
     Meanwhile, a door guide  20  is provided at the opening portion  11   a  of the body  10  to guide the door  12  to close the opening portion  11   a.    
     The door guide  20  may be formed in a shape corresponding to the second door frame  12   b  which forms a rear surface of the door  12 . 
     The door guide  20  has a ring shape with a circular opening  21  formed in a center thereof and may include a door mounting surface  22  formed to correspond to the second door frame  12   b  of the door  12  in front thereof and an incision portion  23  formed by cutting at least a part of a bottom of the door mounting surface  22 . 
     The door mounting surface  22  may be formed to be inclined from the front side  11  of the body  10  to the rear thereof, that is, toward the tub  13  and the drum  14 . 
     A hinge installation portion  24  may be installed at one side of the door mounting surface  22  to allow the door  12  to be hinge-coupled therewith, and a door latch portion (not shown) may be installed at another side thereof to open and close the door  12 . 
     The incision portion  23  of the door guide  20  may include an opening  23   a  formed toward the front of the body  10  and a detergent box cover mounting portion  23   b  formed to be stepped on a rear circumferential surface of the opening  23   a.    
     The detergent box cover mounting portion  23   b  may be formed to be dented from the door mounting surface  22  to allow a detergent box cover  130  of a detergent supply apparatus  100  which will be described below to be coupled therewith. 
     In the embodiment, it has been shown as an example that the incision portion  23  is formed by cutting at least a part of the door mounting surface  22  of the door guide  20 . That is, it has been shown as an example that a width of the incision portion  23  is formed smaller than a width of the door mounting surface  22  to provide the detergent box cover mounting portion  23   b  on at least a part of the door mounting surface  22 . 
     However, the thought of the present embodiment is not limited thereto. For example, the width of the incision portion  23  may be formed to correspond to a width of the door guide  20 . As the width of the incision portion  23  increases, a width of the detergent box  120  corresponding to the incision portion  23  may increase together, thereby increasing an amount of a detergent stored in the detergent box  120  according thereto. 
     Also, in the embodiment, the door guide  20  is provided separately from the front side  11  of the body  10  but is not limited thereto. For example, the door guide  20  may be integrally formed from the opening portion  11   a  in the center of the front side  11 . 
     The door guide  20  may be formed to be bent toward the inside of the body  10 , that is, toward the tub  13  along a circumference of the opening portion  11   a  and integrally provided. 
     Meanwhile, the door guide  20  is allowed to be located on the same plane as the detergent box cover  130 . That is, a top surface of the door guide  20  and a top surface of the detergent box cover  130  may be uniformly connected without a gap, thereby improving an aesthetic aspect of a product. 
     Also, the detergent box cover  130  and the door guide  20  may be formed of the same material, thereby improving an aesthetic shape of a product. 
     The detergent box cover  130  is coupled with a top end of the detergent box  120  to slidably move forward and backward, moves in front of the body  10  to form a forward movement interval d 1 , and forms a backward movement interval d 2  corresponding to the forward movement interval d 1  between the detergent box cover  130  and the incision portion  23  to function as a handle to allow the user to detach the detergent box  120  using the forward movement interval d 1  and the backward movement interval d 2  of the detergent box cover  130 . 
     Also, a protruding portion  134  formed on a bottom surface of the detergent box cover  130  which moves in front of the body  10  and appears outside the body  10  may be used by the user as a handle. 
     The user may move the detergent box cover  130  accommodated in the detergent box cover mounting portion  23   b  of the incision portion  23  forward to form the forward and backward movement intervals d 1  and d 2  thereabove and the protruding portion  134  formed moving in front of the body  10  functions as the handle to be used by the user to withdraw the detergent box  120  outside the body  10 , thereby increasing convenience. 
     Meanwhile, the detergent box cover  130  moves in front of the body  10  to expose a detergent box handle (not shown) provided in the rear of the detergent box  120 . 
     Also, the user may easily withdraw the detergent box  120  outside the body  10  using the exposed detergent box handle. 
     The incision portion  23  has a first interval L 2  to form a space for disposing the detergent box  120  of the detergent supply apparatus  100 . The first interval L 2  may be smaller than a second interval L between the front side  11  of the body  10  and a front end surface of the tub  13  and may be greater than an interval of the detergent box  120 . 
     A front frame  40  formed with a front frame insertion hole  41  may be provided between the front side  11  of the body  10  and the tub  13  to allow the laundry to be inserted into the drum  14 . 
     The front frame  40  may be disposed between the front side  11  and the tub  13  to support the rear of the door guide  20 . 
     A coupling portion  43  such as a plurality of holes  43   a  and slots  43   b  may be formed on an edge of the front frame  40 . The front frame  40  may be coupled with the body  10  through the coupling portion  43  using coupling members such as a screw, a bolt, a pin, a rivet, etc. 
     The front frame  40  is provided to more stably support the door guide  20  to increase durability of a product. 
     Meanwhile, at least one coupling protrusion  11   b  is formed on a rear edge of the front side  11  of the body  10  and coupled with the coupling portion  43  of the front frame  40 . 
     The front frame  40  may include a pump installation opening  42  formed by cutting at least a part of a bottom of the front frame  40  to install the detergent supply apparatus  100  and a drainage apparatus installation opening  44  formed by cutting the bottom of the front frame  40  to install a drainage apparatus  30 . 
     A housing  110  may be disposed in front of the front frame  40  through the pump installation opening  42 , and a detergent supply pump  140  connected to the rear of the housing  110  may be disposed in the rear of the front frame  40 . 
     Also, the drainage apparatus installation opening  44  of the front frame  40  may be formed to be separate from the pump installation opening  42  in parallel. A drainage case  31  of the drainage apparatus  30  may be disposed in such a way that a filter member (not shown) provided therein may be detachably coupled therewith. 
     Here, the pump installation opening  42  and the drainage apparatus installation opening  44  of the front frame  40  may be formed in shapes corresponding to the detergent supply pump  140  and the drainage apparatus  30 , respectively. 
     As described above, the detergent supply apparatus  100  capable of storing and automatically supplying a first detergent (hereinafter, referred to as a detergent) and a second detergent (hereinafter, referred to as a fabric softener) is located in the incision portion  23  formed in the bottom in front of the body  10  and the door guide  20 , thereby improving user&#39;s convenience and increasing usability of a space above the body  10 . 
     Also, a water supply apparatus  16  for supplying water into the tub  13  is mounted in the rear of the body  10 . The water supply apparatus  16  may include a first water supply pipe  16   a  connected to an external water supply source (not shown) and a second water supply pipe  16   b  connected to the tub  13 , and a water supply valve (not shown) for controlling water supply may be installed on the first water supply pipe  16   a.    
     The washing water supplied to the tub  13  through the water supply apparatus  16  is mixed with the detergent and the fabric softener supplied by the detergent supply apparatus  100  in the tub  13  to wash and rinse. 
     As shown in  FIGS.  6  to  14   , the detergent supply apparatus  100  includes the housing  110  disposed at the bottom of the inside of the body  10 , the detergent box  120  detachably provided in the housing  110  to accommodate the detergent and the fabric softener therein, and the detergent supply pump  140  provided to externally discharge the detergent and the fabric softener in the detergent box  120 . 
     The housing  110  may be disposed on a bottom of the front side  11  of the body  10  and may be installed below a position corresponding to the detergent box cover mounting portion  23   b  of the door guide  20 . 
     The detergent box  120  is provided to be inserted into and detachably coupled with the housing  110 , and the detergent box cover  130  is coupled with a top end thereof to be slidable in the front and rear of the body  10 . 
     The detergent box cover  130  is provided on the top end of the detergent box  120 . Here, the detergent box cover  130  may be formed to have a size, material, and color corresponding to the detergent box cover mounting portion  23   b  of the door guide  20  not to spoil a design of a product. 
     The detergent box cover  130  and the detergent box  120  may include slide portions  131  provided to allow the detergent box cover  130  to be movable forward and backward with respect to the detergent box  120 . 
     The slide portions  131  may include guide protrusions  131   a  provided on both ends of the detergent box cover  130 , stopping protrusions  132   a  which protrude downward from a center of the bottom surface of the detergent box cover  130 , guide rails  131   b  formed on top ends of both sides of the detergent box  120  to correspond to the guide protrusions  131   a  of the detergent box cover  130 , and stopping grooves  132   b  which are formed in a center of the top surface of the detergent box  120  and elongate in a width direction of the detergent box  120  to allow the stopping protrusions  132   a  to be inserted and to move therein. 
     Accordingly, the guide protrusions  131   a  of the detergent box cover  130  are inserted into the guide rails  131   b  of the detergent box  120  to allow the detergent box cover  130  to slide forward and backward with respect to the detergent box  120 . 
     Here, the stopping grooves  132   b  formed on the top surface of the detergent box  120  function as stoppers to allow the stopping protrusions  132   a  of the detergent box cover  130  to be inserted therein not to move more than a length of the stopping grooves  132   b  (refer to  FIG.  8   ). 
     Meanwhile, as shown in  FIGS.  6  and  7   , the body  10  includes the drainage apparatus  30  to forcibly discharge the washing water of the tub  13 , a circulating pump  170  provided in the drainage apparatus  30  to circulate the washing water of the tub  13 , a first connection pipe  150  which connects the tub  13  with the drainage apparatus  30 , and a second connection pipe  50  which connects the tub  13  with the circulating pump  170 . 
     The first connection pipe  150  is formed to allow one end to be connected to a bottom surface of the tub  13  and another end to be connected to the drainage apparatus  30 . A branch pipe  155  which branches off from the first connection pipe  150  may be connected to the tub  13  to be connected to a pressure sensor  190  to measure an amount of the washing water in the tub  13  (refer to  FIG.  15   ). 
     Also, detergent connection pipes  153  formed to be connected to the detergent supply pump  140  are formed on the first connection pipe  150 . The detergent connection pipes  153  may include a first detergent connection pipe  153   a  and a second detergent connection pipe  153   b.    
     The drainage apparatus  30  may include a drainage pump (not shown) which allows the washing water to be discharged outward, the circulating pump  170  which allows the washing water to be circulated around the tub  13 , and a filter member (not shown) provided to filter out foreign substances included in the washing water. 
     The drainage apparatus  30  includes a drainage case  31  provided to accommodate the filter member and to connect the drainage pump with the circulating pump  170 . The drainage case  31  includes a first connection pipe  32  connected to the first connection pipe  150  to be connected to the tub  13  to receive the washing water from the tub  13 , a second connection pipe  33  connected to the second connection pipe  50  to connect the drainage case  31  with one side of the tub  13  while being connected to the circulating pump  170  which allows the washing water to be circulated, and a third connection pipe  34  connected to a drainage hose  35  to guide the washing water which flows into the drainage case  31  to the outside of the body  10 . 
     Here, a front side of the drainage case  31  may be formed to be open to allow a drainage filter to be detachable from the front side of the drainage case  31 . 
     Meanwhile, a detergent supply pipe  160  connected to the detergent supply pump  140  to supply the detergent and the fabric softener is connected to the first detergent connection pipe  153   a  and the second detergent connection pipe  153   b  of the first connection pipe  150  to allow the detergent and the fabric softener supplied through the detergent supply pipe  160  to be supplied to the tub  13  through the circulating pump  170 . 
     In the embodiment of the present disclosure, the detergent supply pipe  160  of the detergent supply apparatus  100  is shown to be connected to the tub  13  through the circulating pump  170 , the first connection pipe  150 , and the second connection pipe  50  but is not limited thereto. For example, the detergent supply pipe  160  may be directly connected to a tub. 
     As shown in  FIGS.  8  to  10   , the detergent box  120  of the detergent supply apparatus  100  includes a detergent box body  121  formed with a first accommodating portion  126   a  provided to accommodate the detergent therein and a second accommodating portion  126   b  provided to accommodate the fabric softener therein. 
     Detergent check windows  121   a  may be formed on a front surface of the detergent box body  121  to allow the user to check residual amounts of the detergent and the fabric softener with eyes. The detergent check windows  121   a  may be formed of a completely transparent material or an opaque material and may be insert-injection-molded during a process of injection-molding the detergent box body  121 . 
     The detergent box body  121  includes detergent supply portions  123  provided to supply the detergent and the fabric softener to the first accommodating portion  126   a  and the second accommodating portion  126   b , respectively, and detergent ejection portions  122  provided to eject the detergent and the fabric softener to be ejected from the first accommodating portion  126   a  and the second accommodating portion  126   b.    
     In the embodiment of the present disclosure, it has been shown as an example that the first accommodating portion  126   a  of the detergent box body  121  stores the detergent and the second accommodating portion  126   b  stores the fabric softener. However, the concept of the present disclosure is not limited thereto. 
     The detergent supply portions  123  may be provided in a rear side of the detergent box body  121 , respectively, and include a first detergent supply portion  123   a  formed to supply the detergent to the first accommodating portion  126   a  and a second detergent supply portion  123   b  formed to supply the fabric softener to the second accommodating portion  126   b.    
     Also, caps  124 ,  124   a , and  124   b  for opening and closing the first detergent supply portion  123   a  and the second detergent supply portion  123   b , respectively, may be provided. The caps  124 ,  124   a , and  124   b  are formed to correspond to shapes of the first detergent supply portion  123   a  and the second detergent supply portion  123   b . In the embodiment, the caps  124 ,  124   a , and  124   b  include protrusions  124   c . The first detergent supply portion  123   a  and the second detergent supply portion  123   b  are provided to be formed with grooves  123   c  corresponding to the protrusions  124   c  of the caps  124 ,  124   a , and  124   b  to allow the caps  124 ,  124   a , and  124   b , respectively, to rotate in the first detergent supply portion  123   a  and the second detergent supply portion  123   b  and to be fixed by the protrusions  124   c  and the grooves  123   c.    
     In the embodiment, it has been shown as an example that the detergent supply portions  123  and the caps  124  have circular shapes. However, the concept of the present disclosure is not limited thereto. For example, detergent supply portions and caps may have quadrilateral or various shapes. 
     Meanwhile, a sealing member  60  for sealing may be provided between the detergent supply portions  123  and the caps  124 . 
     The first detergent ejection portion  122   a  and second detergent ejection portion  122   b  are provided at bottom ends of the first accommodating portion  126   a  and the second accommodating portion  126   b , respectively and may include a first detergent ejection portion  122   a  formed at the bottom end of the first accommodating portion  126   a  and a second detergent ejection portion  122   b  formed at the bottom end of the second accommodating portion  126   b.    
     Also, the first detergent ejection portion  122   a  and the second detergent ejection portion  122   b  may be coupled with a pair of valves  128 , first valve  128   a , and second valve  128   b  to control ejection amounts of the detergent and the fabric softener between the accommodating portion and the housing, respectively. 
     The first valve  128   a  is provided on the first detergent ejection portion  122   a  of the detergent box  120  and the second valve  128   b  is provided on the second detergent ejection portion  122   b.    
     The valve  128 , the first valve  128   a , and the second valve  128   b  may be coupled with valve coupling portions  112  of the housing  110 , which will be described below, and be opened to allow the detergent and the fabric softener accommodated in the first accommodating portion  126   a  and the second accommodating portion  126   b , respectively, to be ejected. Here, the valves  128 , the first valve  128   a , and the second valve  128   b  may include a check valve. 
     Also, the detergent box body  121  may be formed with an air through-hole  127  formed to penetrate the first accommodating portion  126   a  and the second accommodating portion  126   b  to allow outside air to flow therethrough. The air through-hole  127  allows a pressure inside the detergent box body  121  to be uniformly maintained, thereby smoothly ejecting the detergent and the fabric softener. 
     In the embodiment of the present disclosure, the air through-hole  127  is shown as a hole with a predetermined diameter as an example but is not limited thereto. For example, an opening and closing member such as a damper may be included. 
     The housing  110  is provided with a detergent accommodating portion  111  provided to allow the detergent box body  121  to be inserted and accommodated therein, and a first reservoir  110   a  provided to be connectable with the first accommodating portion  126   a  of the detergent box  120  and a second reservoir  110   b  provided to be connectable with the second accommodating portion  126   b  are formed on a bottom end of the detergent accommodating portion  111 . 
     The first reservoir  110   a  and the second reservoir  110   b  of the housing  110  are formed to be connected to the first detergent ejection portion  122   a  and the second detergent ejection portion  122   b  of the first accommodating portion  126   a  and the second accommodating portion  126   b  of the detergent box  120 , respectively, to receive the detergent and the fabric softener. 
     The valve coupling portions  112  may be formed on the first reservoir  110   a  and the second reservoir  110   b  to allow the valve  128 , the first valve  128   a , and the second valve  128   b , coupled with the first detergent ejection portion  122   a  and the second detergent ejection portion  122   b  at the bottom surface of the detergent box body  121  to be coupled therewith and opened. 
     In the embodiment, it has been shown as an example that the housing  110  includes the first reservoir  110   a  and the second reservoir  110   b  provided to receive the detergent and the fabric softener from the detergent box  120 . However, the concept of the present disclosure is not limited thereto. For example, at least one of a first reservoir and a second reservoir may be omitted. 
     Also, in the embodiment, the valve coupling portions  112  are shown as protrusions which protrude upward to be coupled with the valve  128 , the first valve  128   a , and the second valve  128   b  and to be opened but are not limited thereto. 
     Meanwhile, a mounting sensor  113  which senses whether the detergent box  120  is coupled with or separated from the housing  110  may be installed in the housing  110 . The mounting sensor  113  which includes magnets are installed in positions corresponding to a side of the housing  110  and a side of the detergent box body  121 , respectively, to display sensed content on a display unit  15  when the detergent and the fabric softener in the detergent box  120  are replaced. 
     A detergent supply pump coupling portion  114  for coupling with the detergent supply pump  140  may be formed at a bottom of a rear surface of the housing  110 . 
     The detergent supply pump  140  may be installed to be connectable to the first reservoir  110   a  and the second reservoir  110   b  to receive the detergent and the fabric softener from the housing  110 . For this, a sealing member  61  for sealing may be provided between the housing  110  and the detergent supply pump  140 . 
     The detergent supply pump  140  may be provided with a fixing portion  141   a  which has a shape corresponding to the detergent supply pump coupling portion  114  of the housing  110 . 
       FIG.  13    is a view of a sensor unit installed in the detergent supply pump in accordance with one embodiment of the present disclosure, and  FIG.  14    is an configuration diagram illustrating an inside of the detergent supply pump in accordance with one embodiment of the present disclosure. 
     As shown in  FIGS.  13  and  14   , the detergent supply pump  140  may include a pump housing  141  provided to be connected to the housing  110  and to form an external shape, chambers  142  provided in the pump housing  141  and connected to the first reservoir  110   a  and the second reservoir  110   b  of the housing  110 , a piston members  146  provided to apply pressure to an inside of the chambers  142 , a motor  143  provided to drive the piston members  146 , and gear members  144  which connect the motor  143  with the piston member  146 . 
     The chambers  142  include a first chamber  142   a  connected to the first reservoir  110   a  and a second chamber  142   b  connected to the second reservoir  110   b . The first chamber  142   a  may receive the liquid detergent stored in the first reservoir  110   a , and the second chamber  142   b  may receive the fabric softener stored in the second reservoir  110   b.    
     Also, a sensor portion  180  for measuring whether the detergent and the fabric softener supplied to the first chamber  142   a  and the second chamber  142   b  are present may be installed in the pump housing  141 . 
     The sensor portion  180  may include a sensor installation portion  182  disposed on one side of the pump housing  141  to be connectable to the first chamber  142   a  and the second chamber  142   b , a sensor cover  181  formed to surround an outside of the sensor installation portion  182 , a sensor  183  installed in the sensor installation portion  182 , and a wire  184  provided to be connected to the sensor and to transmit the presence or absence of the detergent and the fabric softener measured by the sensor  183  to a control unit (not shown). 
     Here, the sensor  183  may be disposed to be in contact with the detergent and the fabric softener in the first chamber  142   a  and the second chamber  142   b . In the embodiment, the sensor  183  is shown as a screw as an example but is not limited thereto. 
     The presence or absence of the detergent and the fabric softener detected by the sensor  183  may be transmitted to the display unit  15  through the control unit to display presence or absence check information of the detergent. 
     Outlets  148  provided to be connected to the chamber  142  to discharge the detergent and the fabric softener are provided in the pump housing  141  of the detergent supply pump  140 . The outlets  148  include a first outlet  148   a  to be connectable to the first chamber  142   a  and a second outlet  148   b  to be connectable to the second chamber  142   b.    
     The piston members  146  provided to apply the pressure to the inside of the chambers  142  include a first piston member  146   a  provided in the first chamber  142   a  and a second piston member  146   b  provided in the second chamber  142   b.    
     Also, both the motors  143  provided to drive the first piston member  146   a  and the second piston member  146   b , respectively, and the gear members  144  may be provided in pairs, respectively. 
     The first piston member  146   a  and the second piston member  146   b  control internal pressure of the first chamber  142   a  and the second chamber  142   b  to allow the detergent stored in the first chamber  142   a  and the fabric softener stored in the second chamber  142   b  to be discharged through the first outlet  148   a  and the second outlet  148   b.    
     The first piston member  146   a  connected to a first motor  143   a  moves up and down in the first chamber  142   a  and controls the pressure inside the first chamber  142   a.    
     Here, between the first piston member  146   a  and the first motor  143   a , a worm shaft  144   a  which is connected to the first motor  143   a  and rotates, a worm gear  144   b  provided to be engaged with the worm shaft  144   a  and to rotate, and a cam member  145  connected to the worm gear  144   b  to move the first piston member  146   a  may be provided. 
     Accordingly, when the first motor  143   a  rotates, the worm shaft  144   a  connected to the first motor  143   a  rotates, the worm gear  144   b  connected to the worm shaft  144   a  rotates, the cam member  145  connected to the worm gear  144   b  rotates, and the piston member  146  connected to the cam member  145  moves, thereby applying the pressure to an inside of the first chamber  142   a.    
     Due to a change in the pressure inside the first chamber  142   a , the liquid detergent stored in the first reservoir  110   a  is allowed to move toward the first chamber  142   a  through the check valve  147  and the liquid detergent of the first chamber  142   a  is allowed to be discharged outside the detergent supply pump  140  through the first outlet  148   a.    
     As described above, the liquid detergent discharged through the first outlet  148   a  is supplied to the first connection pipe  150  through a first detergent supply pipe  161  connected to the first outlet  148   a.    
     Since an operation of discharging the fabric softener through the second outlet  148   b  in the second chamber  142   b  due to the rotation of the second motor  143   b  is identical to that of the first chamber  142   a  of the first motor  143   a , a detailed description thereof will be omitted. 
     The fabric softener discharged through the second outlet  148   b  may be supplied to the first connection pipe  150  through a second detergent supply pipe  162 . 
     In the embodiment, it has been shown as an example that the detergent supply pump  140  is operated by moving the piston members due to the respective motors. However, the concept of the present disclosure is not limited thereto. For example, it is possible to selectively control the pressures of the chambers by driving one motor. 
       FIG.  15    is a schematic diagram illustrating an operation of the detergent supply apparatus in accordance with one embodiment of the present disclosure. 
     As shown in  FIG.  15   , in the case of the detergent and the fabric softener stored in the first accommodating portion  126   a  and the second accommodating portion  126   b  of the detergent box  120 , respectively, during a washing operation, the washing water is supplied from the water supply apparatus  16  to the tub  13  and the detergent stored in the first accommodating portion  126   a  in the detergent box  120  is moved by the detergent supply pump  140  to the first connection pipe  150  through the first outlet  148   a  and the first detergent supply pipe  161 . 
     The detergent of the first connection pipe  150  moves together with the washing water discharged from the tub  13  to the circulating pump  170  and is supplied to the tub  13  through the second connection pipe  50 , thereby performing washing. 
     When the washing is completed, the washing water is discharged through the drainage apparatus  30 . During a rinsing operation, when water is supplied to the tub  13  from the water supply apparatus  16 , the fabric softener stored in the second accommodating portion  126   b  in the detergent box  120  is moved by the second detergent supply pipe  162  to the first connection pipe  150  through the second outlet  148   b  of the detergent supply pump  140 . 
     The fabric softener of the first connection pipe  150  moves together with the washing water discharged from the tub  13  to the circulating pump  170  and moves into the tub  13  through the second connection pipe  50 , thereby performing the rinsing operation. When the rinsing is completed, the washing water is discharged outside the body  10  through the drainage apparatus  30 . 
       FIGS.  16  and  18    are schematic diagrams of a washing machine in which a detergent box of a detergent supply apparatus is mounted in accordance with other embodiments of the present disclosure. 
     Hereinafter, the detergent supply apparatus and the washing machine having the same in accordance with other embodiments of the present disclosure will be described. 
     In the embodiment, it has been shown as an example that the detergent supply apparatus  100  and the detergent box  120  are disposed in front of the door guide  20  at the bottom in the center thereof. However, the concept of the present disclosure is not limited thereto. 
     For example, detergent boxes  120 A of a detergent supply apparatus  100  or  100 A may be disposed on one side of a circumferential surface of the door guide  20  in a circumferential direction thereof. 
     The detergent boxes  120 A disposed in at least one direction of the door guide  20  may be disposed on one side of a top and a bottom of a first position P 1  spaced a predetermined interval L 1 ′ from a center C of the door guide  20  in a left direction. 
     Also, the detergent box  120 A, the first detergent box  120 A′, and the second detergent box  120 A″ may be formed to be separate to store only a detergent or a fabric softener. For example, a first detergent box  120 A′ provided to store only the detergent and a second detergent box  120 A″ provided to store only the fabric softener may be included. 
     Here, the first detergent box  120 A′ may be disposed in at least one position of a top and a bottom of a second position P 2  spaced a predetermined interval L 2 ′ from a left side of the body  10 , that is, from a center C to the left side. 
     Also, the second detergent box  120 A″ may be disposed in at least one position of a top and a bottom of a third position P 3  spaced a predetermined interval L 3 ′ from a right side of the body  10 , that is, from the center C to the right side. 
     Here, the detergent boxes  120 A may have various sizes and shapes. 
     Meanwhile, the detergent boxes  120 A, the first detergent box  120 A′, and the second detergent box  120 A″ may be disposed to allow the center C of the door guide  20  and centers of the first detergent box  120 A′ and the second detergent box  120 A″ to be separate from one another to move upward when the first detergent box  120 A′ and the second detergent box  120 A″ are separated or detached. 
     Here, the detergent boxes  120 A, the first detergent box  120 A′, and the second detergent box  120 A″ may be disposed on a bottom side based on a center of the door guide  20  in a horizontal direction. 
     Also, when the detergent boxes  120 A, the first detergent box  120 A′, and the second detergent box  120 A″ are moved upward and withdrawn as described above, the sizes and shapes of the detergent boxes  120 A, the first detergent box  120 A′, and the second detergent box  120 A″ may be appropriately changed according to a size of the opening portion  11   a  of the body  10  to be withdrawable. 
     As shown in  FIG.  18   , the detergent boxes  120 A may be disposed to allow the center C of the door guide  20  and the center of the detergent boxes  120 A to be identical to each other to be attached or detached in a circle center C direction when detergent boxes  120 A are separated and detached. 
     For example, detergent boxes  120 A may be disposed in positions such as a bottom end C 1  at 6 o&#39;clock, a right side C 2  at 3 o&#39;clock, or a left side C 3  at 9 o&#39;clock from the center C of the door guide  20 . 
     Meanwhile, according to a change in the arrangement of the detergent box  120 A, the first detergent box  120 A′, and the second detergent box  120 A″, arrangements of the detergent supply pump  140  connected to the detergent box  120 A, the first detergent box  120 A′, and the second detergent box  120 A″ to discharge the detergents of the detergent box  120 A, the first detergent box  120 A′, and the second detergent box  120 A″ and pipes connected to the detergent supply pump  140  may be changed. 
     Also, according to the change in the arrangement of the detergent box  120 A, the first detergent box  120 A′, and the second detergent box  120 A″, a size and a shape of the body  10  of the washing machine  1  may be changed. 
       FIG.  19    is a schematic perspective view illustrating a detergent supply apparatus  100 B in accordance with still another embodiment of the present disclosure. 
     The detergent supply apparatus  100  in accordance with one embodiment of the present disclosure is provided to include the housing  110  disposed on the bottom inside the body  10  in front thereof, the detergent box  120  detachably provided in the housing  110 , and the detergent supply pump  140  provided to discharge the detergent in the detergent box  120 . 
     As shown in  FIG.  19   , in accordance with still another embodiment of the present disclosure, the detergent supply apparatus  100 B may be provided including a detergent box  120 B and a detergent supply pump  140 B provided to discharge a detergent of the detergent box  120 B. 
     Here, a pump connection member  200  which connects the detergent box  120 B with the detergent supply pump  140 B may be further included. 
     The detergent box  120 B may be provided to be inserted in the incision portion  23  of the door guide  20  to be detachable, and a detergent box cover  130 B may be coupled with a top end thereof to be slidable in the front and rear of the body  10 . 
     The detergent box cover  130 B may be formed to correspond to the size of the incision portion  23 . 
     The detergent box  120 B includes a detergent box body  121 B in which an accommodating portion  126  is provided to accommodate a detergent and a fabric softener therein. 
     A detergent check window  121 Ba may be formed on a front surface of the detergent box body  121 B to allow the user to check residual amounts of the detergent and the fabric softener. 
     The detergent box body  121 B may include a detergent ejection portion  122  provided to allow the detergent and the fabric softener to be discharged from the accommodating portion  126  and a valve  128 B provided on the detergent ejection portion to control discharge amounts of the detergent and the softener. 
     The pump connection member  200  is disposed on the bottom of the body  10 . The pump connection member  200  may be connected to the detergent supply pump  140 B. 
     The detergent supply pump  140 B may include a pump housing  141 B, a chamber  142 B provided inside the pump housing  141 B, and an outlet  148 B provided to be connected to the chamber  142 B to discharge the detergent and the fabric softener. 
     The pump connection member  200  includes reservoirs  201  provided to be connectable to the chamber  142 B of the pump housing  141 B and to receive the detergent and the fabric softener supplied from the detergent box  120 B. 
     The reservoirs  201  may include a first reservoir  201   a  provided to receive and store the detergent and a second reservoir  201   b  provided to receive and store the fabric softener. 
     The pump connection member  200  may be formed with valve guides  202  for smoothly guiding couplings with the detergent box  120 B at top ends of the reservoir  201 , respectively. 
     The reservoir  201 , the first reservoir  201   a , and the second reservoir  201   b  of the pump connection member  200  are provided with valve coupling portions  112 B to allow the valves  128 B of the detergent box  120 B. The valve coupling portions  112 B may be disposed inside the valve guides  202 . 
     The valve coupling portions  112 B are coupled with the valves  128 B provided on the detergent ejection portions  122  of the detergent boxes  120 B while the detergent boxes  120 B are attached or detached to allow the valves  128 B to be open. 
     In the embodiment, it has been shown as an example that the valve coupling portions  112 B have protruding shapes which protrude to pressurize the valves  128 B upward. However, the concept of the present disclosure is not limited thereto. 
     Also, in the embodiment, it has been described as an example that the valve guides  202  are formed in circular shapes to guide insertion and assembling of the valves  128 B of the detergent boxes  120 B. However, the concept of the present disclosure is not limited thereto. For example, the valve guides  202  may be variously formed depending on shapes and sizes of the detergent ejection portions of the detergent boxes. 
       FIG.  20    is a schematic perspective view illustrating a state in which a detergent box of a detergent supply apparatus pops up or passes through in accordance with still another embodiment of the present disclosure. 
     As shown in  FIG.  20   , the detergent supply apparatus  100 C may be provided to allow a detergent box  40 C to pop up or pass through from the incision portion  23  of the door guide  20 . 
     The door guide  20  may include a door mounting surface  22  formed to correspond to the second door frame  12   b  of the door  12  in front thereof and an incision portion  23  formed by cutting at least a part of a bottom of the door mounting surface  22 . 
     The detergent supply apparatus  100 C includes the detergent box  40 C provided to accommodate a detergent, a housing  31 C in which the detergent box  40 C is detachably installed, and a popup unit  50 C provided to allow the detergent box  40 C to pop up or pass through from the housing  31 C. 
     The detergent box  40 C is provided with a detergent cover  41 C on a top end thereof, and the detergent cover  41 C may be formed to correspond to the incision portion  23  formed in the door guide  20 . 
     Here, the detergent cover  41 C may be formed to have the same material and color as the door guide  20  not to spoil a design. 
     The detergent in the detergent box  40 C may be pumped by a pump unit  32 C disposed outside the detergent supply apparatus  100 C to be supplied into the drum  14 . 
     For this, the pump unit  32 C may include a first connection pipe  33 C provided to be connected to the detergent box  40 C and a second connection pipe  34 C provided to be connected to the tub  13 . 
     Accordingly, the detergent stored in the detergent box  40 C may be pumped by the pump unit  32 C as a necessary amount for one-time washing and supplied into the tub  13  through the first connection pipe  33 C and the second connection pipe  34 C during washing. 
     Here, the pump unit  32 C may include a first pump  32 Ca connected to a first accommodating portion  43 C of the detergent box  40 C and a second pump  32 Cb connected to a second accommodating portion  45 C, which will be described below. 
     In the embodiment, it has been shown as an example that the pump unit  32 C is directly connected to the tub  13  by the second connection pipe  34 C. However, the concept of the present disclosure is not limited thereto. For example, although not shown in the drawings, a water supply valve connected to an external water supply source may be installed above the tub  13  to supply washing water to an inside of the tub  13  and the second connection pipe  34 C of the pump unit  32 C may be connected to the water supply valve to supply the detergent together with the washing water to the tub  13 . 
     As shown in  FIGS.  21  to  23   , the detergent supply apparatus  100 C may include the housing  31 C disposed inside the bottom of the front side  11  of the body  10 , the detergent box  40 C provided to pop up or pass through from inside the housing  31 C and to be inserted or withdrawn, and the popup unit  50 C provided to allow the detergent box  40 C to pop up or pass through from the housing  31 C. 
     The housing  31 C may be disposed on the bottom inside the body  10  to allow the detergent box  40 C to be moved up and down therein. 
     Guide grooves  31 Ca for guiding a vertical movement of the detergent box  40 C are formed on both inner surfaces of the housing  31 C. Guide protrusions  46 C corresponding to the guide grooves  31 Ca protrude from both outer surfaces of the detergent box  40 C. 
     An inside of the detergent box  40 C is divided by a partition wall  44 C. The first accommodating portion  43 C for accommodating a liquid detergent may be formed on one side thereof and the second accommodating portion  45 C for accommodating a fabric softener, etc. may be formed on another side. 
     The detergent box  40 C may be formed with a first inlet  43 Ca and a second inlet  45 Ca for supplying the detergent and the fabric softener to the first accommodating portion  43 C and the second accommodating portion  45 C, respectively. Also, a first opening and closing portion  43 Cb and a second opening and closing portion  45 Cb for opening and closing the first inlet  43 Ca and the second inlet  45 Ca may be installed in the detergent box  40 C, respectively. 
     A first ejection portion  47 C includes a first ejection hole  47 Ca formed on a bottom surface of the first accommodating portion  43 C, and a second ejection portion  48 C includes a second ejection hole  48 Ca formed on a bottom surface of the second accommodating portion  45 C. 
     The first ejection portion  47 C and the second ejection portion  48 C may be connected to a first connection portion  37 C and a second connection portion  38 C of the first reservoir  35 C and second reservoir  36 C provided on the bottom of the housing  31 C. 
     The detergent box  40 C stores about 30 time-amounts of the liquid detergent and the fabric softener, respectively. The first reservoir  35 C and the second reservoir  36 C may be provided to receive and store the detergent and the fabric softener necessary for one-time washing from the detergent box  40 C. 
     The first reservoir  35 C stores the detergent and the second reservoir  36 C stores the fabric softener. 
     The first reservoir  35 C may be connected to the first ejection portion  47 C of the first accommodating portion  43 C by a first connection portion  37 C, and the second reservoir  36 C may be connected to the second ejection portion  48 C of the second accommodating portion  45 C by a second connection portion  38 C. 
     The first reservoir  35 C and the second reservoir  36 C may be connected to the pump unit  32 C through the first connection pipe  33 C, respectively. 
     Accordingly, during washing, the pump unit  32 C uses the detergent and the fabric softener stored in the first reservoir  35 C and the second reservoir  36 C, respectively. The first reservoir  35 C and the second reservoir  36 C empty after washing are filled with the detergent and the fabric softener stored in the first accommodating portion  43 C and the second accommodating portion  45 C of the detergent box  40 C. 
     In the embodiment, it has been shown as an example that the detergent and the fabric softener necessary for one-time washing are stored, pumped, and used by the first reservoir  35 C and the second reservoir  36 C. However, the concept of the present disclosure is not limited thereto. For example, valves are applied instead of the first reservoir  35 C and the second reservoir  36 C and supply amounts of the detergent and the fabric softener may be controlled through controlling of the valves and the pump unit. 
     As shown in  FIGS.  24  and  25   , the detergent supply apparatus  100 C includes the popup unit  50 C provided to allow the detergent box  40 C to pop up or pass through from the housing  31 C to be inserted or withdrawn. 
     The popup unit  50 C may include a popup supporting groove  51 C formed to be dented inward on the bottom surface of the detergent box  40 C and a popup member  52 C elastically deformed to be coupled with the popup supporting groove  51 C. 
     The popup member  52 C may include a first popup portion  53 C coupled with the bottom surface of the body  10 , a second popup portion provided to be movable from an inside to an outside of the first popup portion  53 C, and a popup spring  55 C which elastically supports a space between the first popup portion  53 C and the second popup portion  54 C. 
     The first popup portion  53 C includes a first supporting portion  53 Ca provided to be coupled with and fixed to the bottom surface of the body  10 , a popup guide protrusion  53 Cb which protrudes upward from a center of the first supporting portion  53 Ca to allow the popup spring  55 C to be mounted on an outer surface thereof, and a second supporting portion  53 Cc which is coupled with the first supporting portion  53 Ca and has an outer surface thereof coupled with the popup supporting groove  51 C of the detergent box  40 C to allow the detergent box  40 C to be stably moved. 
     A popup hole  53 Cd is formed in a top surface of the second supporting portion  53 Cc to allow the second popup portion  54 C to be moved up and down. The second popup portion  54 C is formed with a popup spring supporting groove  54 Cb to support the popup spring  55 C of the first popup portion  53 C, and a stopper  54 Ca which protrudes outward is formed on an outer end thereof not to be separated from the popup hole  53 Cd of the second supporting portion 
     Accordingly, the second popup portion  54 C may be elastically supported by the popup spring  55 C to be elastically supported in a vertical direction with respect to the first popup portion  53 C, thereby elastically supporting the detergent box  40 C in a vertical direction with respect to the housing  31 C. 
     Also, the popup unit  50 C further includes a latch unit  60 C to lock or unlock the detergent box  40 C while the detergent box  40 C moves in the vertical direction with respect to the housing  31 C. 
     The detergent box  40 C is provided to be vertically movable by the popup unit  50 C using a push-and-push method. Here, when the detergent box  40 C is pushed in a state of being locked by the latch unit  60 C, the lock may be released and the detergent box  40 C may be locked when the detergent box  40 C is pushed in a state in which the lock is released. 
     The latch unit  60 C includes a holding protrusion  61 C which protrudes from a bottom surface of the housing  31 C and a latch  70 C provided to hold or release the holding protrusion  61 C. 
     The latch  70 C is provided on a fixing portion  63 C provided to be fixed to the bottom surface of the body  10 . The latch unit  60 C of the popup unit  50 C in accordance with the embodiment of the present disclosure will be described with reference to  FIG.  7   . 
     The holding protrusion  61 C has a head portion  61 Ca which widely spread in a mushroom shape. The head portion  61 Caa may be inserted into the latch  70 C. 
     The latch  70 C may include a latch housing  71 C fixed to an inside of the fixing portion  63 C, a slide member  72 C which moves forward and backward in the latch housing  71 C, a spring  78 C which elastically supports the slide member  72 C, a guide groove  75 C provided on the slide member  72 C, a guide bar  77 C with a fixing end  74 Ca hinge-coupled with the latch housing  71 C and a moving end  74 Cb inserted into the guide groove  75 C to guide or restrict a forward and backward movement of the slide member  72 C, and a catch member  73 C provided on an end of the slide member  72 C to be elastically deformed to hold or release the holding protrusion  61 C. 
     As shown in  FIG.  26   , when the detergent box  40 C is pushed downward and the holding protrusion  61 C moves downward, the holding protrusion  61 C is allowed to push the slide member  72 C downward. 
     The slide member  72 C overcomes an elastic force of the spring  78 C and moves downward. Here, the moving end  74 Cb of the guide bar  77 C moves along the guide groove  75 C in a direction of a dotted line A. 
     As a result, the moving end  74 Cb of the guide bar  77 C is supported by a supporting surface  76 C of the guide groove  75 C, thereby stopping the movement of the slide member  72 C. Here, the catch member  73 C is elastically deformed to be retracted to catch the holding protrusion  61 C, thereby fixing the detergent box  40 C. 
     In this state, when the detergent box  40 C is pressurized downward by the user, the moving end  74 Cb of the guide bar  77 C moves along the guide groove  75 C in a direction of a solid line and the catch member  73 C is restored to an original shape in such a way that the holding protrusion  61 C caught by the catch member  73 C is released and fixing of the detergent box  40 C is released and allowed to move upward by the popup unit  50 C. 
     Meanwhile, the detergent cover  41 C of the detergent box  40 C may be formed with a push portion  41 Ca to allow the user to easily push. Also, a handle portion  42 C may be formed on a side of the detergent box  40 C to allow the user to easily withdraw or mount the detergent box  40 C which moves upward from or in the housing  31 C, that is, a detergent supply apparatus installation opening  23 C. 
       FIGS.  27  and  28    are schematic diagrams of a washing machine  1 D in which a detergent supply apparatus  100 D is mounted in accordance with still another embodiment of the present disclosure. 
     As shown in  FIGS.  27  and  28   , a detergent box  120 D of the detergent supply apparatus  100 D in accordance with still another embodiment of the present disclosure may be provided to be separable from the door guide  20  as necessary. 
     The door guide  20  is provided on the opening portion  11   a  formed in the front side  11  of the body  10 , and the circular opening  21  is formed in the center thereof. 
     The door guide  20  may include the door mounting surface  22  formed to correspond to the second door frame  12   b  of the door  12  and the incision portion  23  formed by cutting at least the part of the bottom of the door mounting surface  22 . 
     The incision portion  23  is provided to allow a detergent box cover  130 D of the detergent supply apparatus  100 D which will be described below to be detachably coupled therewith. 
     The detergent supply apparatus  100 D may include the detergent box  120 D and a detergent supply pump  140 D provided to discharge a detergent and a fabric softener of the detergent box  120 D. 
     The detergent box  120 D includes a detergent box body  121 D formed with a plurality of accommodating portions (not shown) to accommodate the detergent and the fabric softener therein. On a top surface of the detergent box body  121 D, detergent inlets  123 D are formed to supply the detergent and the fabric softener through the plurality of accommodating portions. 
     The detergent inlets  123 D may include a first detergent inlet  123 Da formed to insert the detergent and a second detergent inlet  123 Db separated from the first detergent inlet  123 Da and formed to insert the fabric softener. 
     A detergent box cover  130 D may be separably coupled with a top end of the detergent box  120 D to open and close the detergent inlets  123 D. 
     The detergent box cover  130 D may include magnets  135 D provided to be detachable from the detergent box  120 D. 
     The magnets  135 D may include a first magnet  135 Da disposed on the detergent box cover  130 D and a second magnet  135 Db disposed on the detergent box  120 D to correspond to the first magnet  135 Da. 
     Accordingly, due to magnetic properties of the first magnet  135 Da and the second magnet  135 Db, the detergent box cover  130 D may be easily attached to or detached from the detergent box  120 D. 
     As described above, when the detergent box cover  130 D is separated from the detergent box  120 D, since the detergent inlets  123 D are exposed outward, the detergent and fabric softener may be replenished without separation of the detergent box  120 D, thereby increasing convenience. 
     In the embodiment, it has been described as an example that the magnets  135 D are disposed on top ends of both the detergent box cover  130 D and the detergent box  120 D, respectively. However, the concept of the present disclosure is not limited thereto. For example, the magnets may be disposed on the incision portion of the door guide provided to allow the detergent box cover to be mounted. 
     Meanwhile, the detergent box cover  130 D is formed corresponding to the size of the incision portion  23  of the door guide  20 . Here, the detergent box cover  130 D may be formed to have the same material and color as those of the door guide  20  to improve an aesthetic aspect. 
     In the embodiment, it has been described as an example that the detergent box  120 D is provided to be selectively separable from the incision portion  23  of the door guide  20  of the body  10  when the detergent box cover  130 D is completely separated from the detergent box  120 D. However, the concept of the present disclosure is not limited thereto. For example, it may be applied to the detergent supply apparatus provided to allow the detergent box to be separated and detachable from the body in accordance with one embodiment of the present disclosure. 
     Meanwhile, a repetitive description of the same components as those in accordance with one embodiment of the present disclosure will be omitted. 
       FIG.  29    is a schematic diagram of a washing machine  1 E in which a detergent supply apparatus  100 E is mounted in accordance with a further embodiment of the present disclosure. 
     As shown in  FIG.  29   , a detergent box  120 E of the detergent supply apparatus  100 E may be provided to be separable from the door guide  20  of the washing machine  1 E as necessary. 
     The door guide  20  may be provided on the opening portion  11   a  formed in the front side  11  of the body  10 . The door guide  20  may be formed with the circular opening  21  in the center thereof and may include the door mounting surface  22  in front thereof formed to correspond to the second door frame  12   b  of the door  12  and the incision portion  23  formed by cutting at least the part of the bottom of the door mounting surface  22 . 
     The detergent box  120 E provided in the incision portion  23  may be formed with respective accommodating portions (not shown) provided to accommodate a detergent and a fabric softener therein and may be provided with, a first detergent inlet  123 Ea formed to be connected to the accommodating portion to insert the detergent, and a second detergent inlet  123 Eb spaced at a certain interval from the first detergent inlet  123 Ea and formed to insert the fabric softener on a top end thereof. 
     In the embodiment, it has been described as an example that detergent inlets  123 E of the detergent box  120 E are formed in such a way that respective inlets are formed in one detergent box to accommodate the detergent and the fabric softener. However, the concept of the present disclosure is not limited thereto. For example, the detergent box inlets may be provided to accommodate a detergent and a fabric softener. 
     Meanwhile, a detergent box cover  130 E may be separably coupled with the top end of the detergent box  120 E to open and close the detergent inlets  135 E. 
     The detergent box cover  130 E provided on the top end of the detergent box  120 E may be provided to be slidable in a circumferential direction of the door guide  20 . 
     Here, a guide rail (not shown) may be formed on the door mounting surface  22  of the door guide  20  to allow the detergent box cover  130 E to be slidable. 
     Accordingly, the detergent box cover  130 E is allowed to slide in the circumferential direction of the door guide  20  to expose the detergent inlets  123 E on the top end of the detergent box  120 E to allow the user to supply the detergent and the fabric softener, thereby increasing convenience. 
     A description of the same components as those in accordance with one embodiment of the present disclosure will be omitted. 
     Although a few embodiments of the present disclosure have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.