Patent Publication Number: US-2023157500-A1

Title: Cleaning device having vacuum cleaner and dust collecting station

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a continuation application, under 35 U.S.C. §111 (a), of International Pat. Application No. PCT/KR2022/013104, filed on Sep. 1, 2022 which claims the benefit of Korean Pat. Application No. 10-2021-0161715, filed on Nov. 22, 2021, in the Korean Intellectual Property Office, the entire disclosures of which are incorporated herein by reference as a part of this application. 
    
    
     BACKGROUND 
     Field 
     The disclosure relates to a cleaning device including a vacuum cleaner and a dust collecting station, and in particular, to a cleaning device which includes a vacuum cleaner and a dust collecting station and is capable of automatically discharging dust inside the vacuum cleaner. 
     DESCRIPTION OF RELATED ART 
     In general, a vacuum cleaner is a device including a fan motor for generating absorptive power and configured to suck foreign substances such as dust, etc. together with air according to the absorptive power generated by the fan motor, and then separate and collect the foreign substances from the sucked air to perform cleaning. 
     The vacuum cleaner includes a dust collecting container for collecting the foreign substances, and a user may periodically separate the dust collecting container from the vacuum cleaner to discharge the foreign substances collected in the dust collecting container. 
     A dust collecting station on which the vacuum cleaner is to be docked may be provided, and the foreign substances may be automatically discharged from the dust collecting container in the vacuum cleaner docked on the dust collecting station. When the discharge of the foreign substances to the dust collecting station is completed, the vacuum cleaner may be undocked from the dust collecting station, and a dust collecting container door, which was opened for the discharge of the foreign substances, may be closed again. 
     SUMMARY 
     According to an embodiment of the disclosure, a cleaning device includes: a vacuum cleaner including a dust collecting container to collect foreign substances therein; and a dust collecting station connectible to the dust collecting container to receive foreign substances collected in the dust collecting container from the dust collecting container, the dust collecting container includes a dust collecting container main body including a first opening and a dust collecting container door configured to open or close the first opening by rotating around a first axis in the clockwise direction or in the counterclockwise direction, the dust collecting station includes: a station main body including an accommodation space to collect foreign substances therein; a capturing portion formed one side of the station main body, the capturing portion including a second opening to intercommunicate with the first opening of the dust collecting container main body in response to connecting the dust collecting container with the dust collecting station, and configured to capture the foreign substances collected in the dust collecting container; and a pressurizer rotating around a second axis perpendicular to the first axis and to apply pressure on one side of the dust collecting container door so that the dust collecting container door rotates around the first axis in the clockwise direction or in the counterclockwise direction to be adjacent to the dust collecting container main body. 
     The pressurizer may include: a base portion including a hollow opening and having a shape of a ring; and a stepped portion having a circular segment shape and protruding from one side of the base portion in a direction toward the second axis and extending along an angle in a circumferential direction of the base portion, wherein the hollow opening is arranged to face the second opening, and one side of the stepped portion is arranged to face one side of the dust collecting container door. 
     In response to closing the first opening by the dust collecting container door, one side of the stepped portion may be arranged to be in contact with one side of the dust collecting container door, and in response to opening the first opening by the dust collecting container door, the one side of the stepped portion may be arranged not to be in contact with the one side of the dust collecting container door. 
     The cleaning device may further include a first driving motor configured to apply power to the pressurizer to rotate around the second axis. 
     The cleaning device may further include a locking controller switching a state of the dust collecting container door between a lock state which the locking controller locks the dust collecting container door by applying pressure to a door latch portion arranged at the dust collecting container and an unlock state which the locking controller unlocks the dust collecting container door by releasing the applied pressure. 
     In response to closing the first opening by the dust collecting container door, and switching to the lock state by the locking controller, one side of the stepped portion may be arranged not to be in contact with one side of the dust collecting container door. 
     The station main body may further include an accommodating portion to accommodate the locking controller therein, the locking controller is accommodated in the accommodating portion in response to switching to the lock state, and the locking controller protrudes from the accommodating portion in response to switching to the unlock state. 
     The cleaning device may further include a second driving motor configured to apply power to the locking controller to be protruded from the accommodating portion to be accommodated in the accommodating portion. 
     The cleaning device may further include an intake device configured to form an intake current so that the foreign substances in the dust collecting container are captured in the capturing portion, wherein, by the intake current, the dust collecting container door is further configured to rotate around the first axis in the clockwise direction or in the counterclockwise direction to open the first opening arranged at the dust collecting container main body. 
     The cleaning device may further include an elastic member configured to apply elastic force to the dust collecting container door to close the first opening arranged at the dust collecting container main body. 
     The elastic member may be a torsion spring arranged on the first axis. 
     The cleaning device may further include a hinge portion connecting the dust collecting container main body to the dust collecting container door, wherein the stepped portion rotates around the second axis to be adjacent to the hinge portion when the dust collecting container door is in an open state to open the first opening, and the stepped portion rotates around the second axis to be apart from the hinge portion when the dust collecting container door is in a close state to close the first opening. 
     The cleaning device may further include a power transfer member transmitting the power generated by the first driving motor to the pressurizer. 
     According to another embodiment of the disclosure, a dust collecting station connectible to a dust collecting container of a vacuum cleaner to receive foreign substances collected in the dust collecting container from the dust collecting container, the dust collecting station includes: a station main body including an accommodation space formed therein to store the received foreign substances; a capturing portion formed one side of the station main body, the capturing portion including a second opening to intercommunicate with the first opening of the dust collecting container main body in response to connecting the dust collecting container with the dust collecting station, and configured to capture the foreign substances collected in the dust collecting container; and a pressurizer configured to rotate around a second axis perpendicular to the first axis and applying pressure on one side of the dust collecting container door so that the dust collecting container door rotates around the first axis in the clockwise direction or in the counterclockwise direction to be adjacent to the dust collecting container main body. 
     The pressurizer may include: a base portion having a ring shape of a ring including a hollow opening; and a stepped portion having a circular segment shape, and protruding from one side of the base portion in a direction of the second axis and extending along an angle in a circumferential direction toward the base portion, the hollow opening is arranged to face the second opening, and one side of the stepped portion is arranged to face one side of the dust collecting container door. 
     In response to closing the first opening by the dust collecting container door, one side of the stepped portion may be arranged to be in contact with one side of the dust collecting container door, and in response to opening the first opening by the dust collecting container door, the one side of the stepped portion may be arranged not to be in contact with the one side of the dust collecting container door. 
     The dust collecting station may further include a first driving motor configured to apply power to the pressurizer to rotate around the second axis. 
     The dust collecting station may further include a locking controller configured to switch the dust collecting container door between a lock state which the locking controller locks the dust collecting container door by applying pressure to a door latch portion arranged at the dust collecting container and an unlock state which the locking controller unlocks the dust collecting container door by releasing the applied pressure. 
     The station min body may further include an accommodating portion to accommodate the locking controller therein, the locking controller is accommodated in the accommodating portion in response to switching to the lock state, and the locking controller protrudes from the accommodating portion in response to switching to the unlock state. 
     The dust collecting station may further include a second driving motor configured to apply power to the locking controller to be protruded from the accommodating portion to be accommodated in the accommodating portion. 
     According to an embodiment of the disclosure, a cleaning device including a vacuum cleaner and a dust collecting station may improve user friendliness by allowing an opened dust collecting container door to be automatically closed when the discharge of foreign substances from a dust collecting container is completed. 
     According to another embodiment of the disclosure, a cleaning device including a vacuum cleaner and a dust collecting station may enhance design convenience by having an improved structure which facilitates simplification of a design of an opening and closing device configured to automatically open and close a dust collecting container door. 
     According to an aspect of the disclosure, provided is a cleaning device which includes a vacuum cleaner and a dust collecting station and is capable of automatically closing an opened dust collecting container door when the discharge of foreign substances from a dust collecting container is completed. 
     According to another aspect of the disclosure, provided is a cleaning device which includes a vacuum cleaner and a dust collecting station and has an improved structure that facilitates simplification of a design of an opening and closing device configured to automatically open and close a dust collecting container door. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1 A  is a perspective view of a cleaning device including a vacuum cleaner and a dust collecting station separated from each other, according to an embodiment of the disclosure. 
         FIG.  1 B  is a perspective view of a cleaning device including a vacuum cleaner docked on a dust collecting station. 
         FIG.  2 A  is an exploded perspective view of a dust collecting container according to an embodiment of the disclosure. 
         FIG.  2 B  is a plan view of a dust collecting container according to an embodiment of the disclosure. 
         FIG.  3 A  is a perspective view of a dust collecting station according to an embodiment of the disclosure. 
         FIG.  3 B  is a projected perspective view of a dust collecting station according to an embodiment of the disclosure. 
         FIG.  3 C  is a perspective view of a locking controller according to an embodiment of the disclosure. 
         FIG.  3 D  is a perspective view of a pressurizer according to an embodiment of the disclosure. 
         FIG.  4 A  is a partial cross-sectional view of a cleaning device in a state where a dust collecting container door has closed a first opening, according to an embodiment of the disclosure. 
         FIG.  4 B  is a perspective view of a pressurizer and a dust collecting container door according to an embodiment of the disclosure. 
         FIG.  5 A  is a partial cross-sectional view of a cleaning device in a state where a dust collecting container door has opened a first opening, according to an embodiment of the disclosure. 
         FIG.  5 B  is a perspective view of a pressurizer and a dust collecting container door according to an embodiment of the disclosure. 
         FIG.  6    is a perspective view of a pressurizer and a dust collecting container door according to an embodiment of the disclosure. 
         FIG.  7    is a perspective view of a pressurizer and a dust collecting container door according to an embodiment of the disclosure. 
         FIG.  8    is a partial cross-sectional view of a cleaning device in a state where a dust collecting container door has closed a first opening, according to an embodiment of the disclosure. 
         FIG.  9 A  is a partial cross-sectional view of a cleaning device in a state where a dust collecting container door has closed a first opening, according to an embodiment of the disclosure. 
         FIG.  9 B  is a perspective view of a pressurizer and a dust collecting container door according to an embodiment of the disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Throughout the disclosure, the expression “at least one of a, b or c” indicates only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof. 
     Hereinafter, components and effects thereof of the disclosure are described in detail with reference to the accompanying drawings. 
     The terms used in the present specification are now briefly explained, followed by the detailed description of the disclosure. 
     General terms which are currently used widely have been selected for use in consideration of their functions in embodiments; however, such terms may be changed according to an intention of a person skilled in the art, precedents, advent of new technologies, etc. Furthermore, in certain cases, terms have been arbitrarily selected by the applicant, and in such cases, meanings of the terms will be explained in detail in corresponding descriptions. Accordingly, the terms used in the embodiments of the disclosure should be defined based on their meanings and overall descriptions of the embodiments, not simply by their names. 
     In the specification, when a portion “includes” a component, another component may be further included, rather than excluding the existence of other components, unless otherwise described. 
     The terms as “first,” “second,” etc., are used only to distinguish one component from another, and such components must not be limited by the above terms. 
     Hereinafter, embodiments of the disclosure will be described in detail with reference to the accompanying drawings so that a person with ordinary skill in the art may easily perform the disclosure. However, the disclosure may be implemented in various different forms and is not limited to embodiments described herein. To clearly describe the disclosure in the drawings, a part irrelevant to the descriptions of the disclosure is omitted in the drawings, and throughout the specification, like reference numerals denote like components. 
     The terms such as “upper,” “lower,” “forward and backward directions” used in the descriptions below are defined based on the drawings, and thus, shapes and positions of each component are not limited by such terms. 
     Hereinafter, embodiments of the disclosure are described in detail with reference to the accompanying drawings. 
       FIG.  1 A  is a perspective view of a cleaning device with a vacuum cleaner and a dust collecting station separated from each other, according to an embodiment of the disclosure.  FIG.  1 B  is a perspective view of a cleaning device with a vacuum cleaner docked on a dust collecting station. 
     With reference to  FIGS.  1 A and  1 B , a cleaning device C according to an embodiment may include a dust collecting station  1  and a vacuum cleaner  2 . 
     The vacuum cleaner  2  according to an embodiment of the disclosure may include a cleaner main body  21 , an extension tube  22  removably coupled to the cleaner main body  21 , an intake unit  23  removably coupled to the extension tube  22 , and a dust collecting container  200  coupled to the cleaner main body  21 . 
     The cleaner main body  21  may include an intake motor (not shown) generating absorptive power required to suck foreign substances on a target surface to be cleaned, and may be coupled to the dust collecting container  200  in which the foreign substances sucked in from the target surface are accommodated. 
     The dust collecting container  200  may be arranged higher than the intake motor in an upstream of air flow and configured to filter out and collect dust or dirt in the air which has flowed in through the main intake unit  23 . The dust collecting container  200  according to an embodiment may be removably coupled to the cleaner main body  21 . 
     The dust collecting station  1  according to an embodiment may be configured to be able to house or hold the vacuum cleaner  2 . For example, a battery of the vacuum cleaner  2  may be charged while the vacuum cleaner  2  is docked on the dust collecting station  1  as illustrated in  FIG.  1 B . Furthermore, when the vacuum cleaner  2  is docked on the dust collecting station  1 , the dust collecting station  1  according to an embodiment may automatically discharge the dust collected inside the dust collecting container  200  to improve user friendliness. The dust collecting station  1  according to an embodiment may only automatically discharge the dust collected in the dust collecting container  200  without charging the vacuum cleaner  2 . 
     When the vacuum cleaner  2  is docked on the dust collecting station  1  according to an embodiment of the disclosure, a user may input a signal to an input portion (not shown) to discharge the foreign substances collected in the dust collecting container  200  to the dust collecting station  1 . At this time, the dust collecting station  1  connected to the dust collecting container  200  may discharge from the dust collecting container  200  the foreign substances collected in the dust collecting container  200  by using an intake device  120  (see  FIG.  3 C ). 
     According to an embodiment of the disclosure, a dust collecting container door  220  (see  FIG.  2 A ) may be opened to discharge the foreign substances collected in the dust collecting container  200 . Moreover, when the discharge of the foreign substances collected in the dust collecting container  200  is completed, the dust collecting container door  220  (see  FIG.  2 A ) may be closed again. In related arts, a user needs to endure the inconvenience of manually opening and closing the dust collecting container door  220  (see  FIG.  2 A ) to discharge the foreign substances collected in the dust collecting container  200 . According to an embodiment of the disclosure, the dust collecting container door  220  (see  FIG.  2 A ) may be automatically opened and closed to discharge the foreign substances collected in the dust collecting container  200 . Hereinafter, the technical feature of automatically opening and closing the dust collecting container door  220  (see  FIG.  2 A ) in the process of discharging the foreign substances collected in the dust collecting container  200  is described in more detail below. 
       FIG.  2 A  is an exploded perspective view of a dust collecting container according to an embodiment.  FIG.  2 B  is a plan view of a dust collecting container according to an embodiment. 
     With reference to  FIGS.  2 A and  2 B , the dust collecting container  200  according to an embodiment may include a dust collecting container main body  210 , the dust collecting container door  220 , a first elastic member  230 , a dust collecting container door supporting portion  240 , an exterior member  250 , and a door latch portion  260 . The dust collecting container main body  210  according to an embodiment may be an accommodation member with a chamber to accommodate collected foreign substances. For example, the dust collecting container main body  210  may include a first opening  211  which may be opened and closed by the dust collecting container door  220 . When the dust collecting container door  220  is opened, the foreign substances collected in the dust collecting container main body  210  may be discharged to the dust collecting station  1  through the first opening  211 . 
     The dust collecting container door  220  may open and close the first opening  211  provided at the dust collecting container main body  210 . The dust collecting container door  220  according to an embodiment may be connected to the dust collecting container main body  210  by using a hinge portion  221 . Accordingly, the dust collecting container door  220  according to an embodiment may rotate around a first axis  222  in the clockwise direction or in the counterclockwise direction with respect to the dust collecting container main body  210 . 
     For example, when an open state where the first opening  211  is opened by the dust collecting container door  220  is switched to a close state where the first opening  211  is closed by the dust collecting container door  220 , the dust collecting container door  220  may rotate around the first axis  222  in any one direction from the clockwise direction or the counterclockwise direction, for example, in a first direction. Furthermore, when the close state where the first opening  211  is closed by the dust collecting container door  220  is switched to the open state where the first opening  211  is opened by the dust collecting container door  220 , the dust collecting container door  220  may rotate around the first axis  222  in any one direction from the clockwise direction or the counterclockwise direction, for example, in a second direction which is opposite to the first direction. 
     The elastic member  230  may apply elastic force so that the dust collecting container door  220  closes the first opening  211  provided at the dust collecting container main body  210 . For example, the elastic member  230  may apply elastic force so that the dust collecting container door  220  rotates around the first axis  222  in the first direction. For example, the elastic member  230  may be a torsion spring arranged on the first axis  222 . The elastic member  230  may apply elastic force in the first direction so that the state of the dust collecting container door  220  is switched from the open state to the close state. Accordingly, when the discharge of the foreign substances collected in the dust collecting container main body  210  is completed, the state of the dust collecting container door  220  may be automatically switched from the open state to the close state. However, the disclosure is not limited thereto, and the elastic member  230  may not be provided for user’s convenience in design. 
     The dust collecting container door supporting portion  240  may be a support member fixed to the dust collecting container main body  210  and supporting the dust collecting container door  220 . For example, the dust collecting container door supporting portion  240  may be arranged to be fixed to the dust collecting container main body  210 . Furthermore, the dust collecting container door supporting portion  240  may support the hinge portion  221  arranged to be fixed to the dust collecting container door  220 . Accordingly, the dust collecting container door  220  may be connected to the dust collecting container main body  210  by using the hinge portion  221 . 
     The dust collecting container door supporting portion  240  according to an embodiment may have a shape of a ring having a hollow opening  242 . The hollow opening  242  may be arranged to face the first opening  211  provided at the dust collecting container main body  210 . Accordingly, the hollow opening  242  may form a passage through which the foreign substances collected in the dust collecting container main body  210  are discharged. 
     The exterior member  250  may be a protection member to protect the dust collecting container door  220  and the dust collecting container door supporting portion  240  from the outside. For example, the exterior member  250  may have a shape of a ring having a hollow opening. The dust collecting container door  220  and the dust collecting container door supporting portion  240  may be accommodated in the hollow opening. The exterior member  250  may not be arranged for user’s convenience in design. 
     The door latch portion  260  may be engaged with a first latch portion  225  arranged at the dust collecting container door  220  to lock or unlock the dust collecting container door  220 . For example, the door latch portion  260  may include a rotational force applying portion  261 , a second latch portion  262  to be engaged with the first latch portion  225 , an elastic portion  263 , and a rotation shaft  264 . The rotational force applying portion  261  according to an embodiment may be pressurized by a locking controller  300  (see  FIG.  3 C ) to be described later and rotate around the rotation shaft  264 . At this time, the rotation shaft  264  may be supported by a dust collecting container door hinge portion  241 . 
     The second latch portion  262  according to an embodiment may by supported by the rotational force applying portion  261 , and the rotational force may be applied to the second latch portion  262  by the rotational force applying portion  261 . Accordingly, the rotational force applying portion  261  may apply rotational force to the second latch portion  262 , and the second latch portion  262  may rotate around the rotation shaft  264 . For example, as the second latch portion  262  rotates around the rotation shaft  264 , the second latch portion  262  may be engaged with the first latch portion  225  and be locked, or may be released from the first latch portion  225 . 
     The elastic portion  263  according to an embodiment may face the locking controller  300  (see  FIG.  3 C ) to be described later, with the rotational force applying portion  261  arranged therebetween. For example, when the locking controller  300  is raised and thus the rotational force applying portion  261  is raised as well, the elastic portion  263  may be in contact with an elastic portion supporting portion  265  and compressed. Then, when the locking controller  300  descends, the elastic portion  263  may be expanded. At this time, the rotational force applying portion  261  supported by the elastic portion  263  may descend in one direction (Z direction). The second latch portion  262  supported by the rotational force applying portion  261  may rotate around the rotation shaft  264  in the clockwise direction. In this manner, the second latch portion  262  may be engaged with the first latch portion  225  and switched to the lock state. 
       FIG.  3 A  is a perspective view of a dust collecting station according to an embodiment.  FIG.  3 B  is a projected perspective view of a dust collecting station according to an embodiment.  FIG.  3 C  is a perspective view of a locking controller according to an embodiment.  FIG.  3 D  is a perspective view of a pressurizer according to an embodiment. 
     With reference to  FIGS.  2 A,  3 A, and  3 B , the dust collecting station  1  according to an embodiment may include a station main body  10  including an accommodation space, a capturing portion  100  arranged in the accommodation space, an intake device  120  forming an intake current so that the foreign substances in the dust collecting container  200  are captured in the capturing portion  100 , the locking controller  300  switching the state of the dust collecting container door  220  between the lock state and the unlock state, and a pressurizer  400  applying pressure on one side of the dust collecting container door  220 . 
     The station main body  10  according to an embodiment may be a housing member capable of accommodating the capturing portion  100 , the locking controller  300 , and the pressurizer  400  to be described later. For example, the locking controller  300  may protrude from or be accommodated in the station main body  10 , and the pressurizer  400  may be accommodated to be rotatable around a second axis  401  perpendicular to the first axis  222  in the station main body  10 . For example, an accommodating portion  320  accommodating the locking controller  300  may be arranged at the station main body  10 . Accordingly, the locking controller  300  may protrude from or be accommodated in the accommodating portion  320  according to whether the dust collecting container door  220  is opened or closed. 
     Moreover, for example, the pressurizer  400  may be arranged to be rotatable around the second axis  401  in the clockwise direction or in the counterclockwise direction at the station main body  10 . Accordingly, the pressurizer  400  may rotate around the second axis  401  in the clockwise direction on in the counterclockwise direction according to whether the dust collecting container door  220  is opened or closed. 
     The capturing portion  100  may be arranged in an accommodation space included in the station main body  10 . For example, when the dust collecting container door  220  is opened, the capturing portion  100  may include a second opening  110  intercommunicating with the first opening  211  provided at the dust collecting container main body  210 . Accordingly, when the dust collecting container door  220  is opened, an intake passage connected to the capturing portion  100  from the dust collecting container main body  210  may be formed. When an intake current is formed by the intake device  120  to be described later, the foreign substances collected in the dust collecting container main body  210  may be captured in the capturing portion  100 . According to an embodiment of the disclosure, the capturing portion  100  may be a first capturing portion, and a second capturing portion including a filter through which air can pass but dust cannot may be further arranged. 
     The intake device  120  may form an intake current between the dust collecting container main body  210  and the capturing portion  100 . For example, the intake device  120  may include an intake fan (not shown). According to an embodiment of the disclosure, the intake device  120  may form the intake current between the dust collecting container main body  210  and the capturing portion  100  and move the foreign substances collected in the dust collecting container main body  210  to the capturing portion  100 . Moreover, the state of the dust collecting container door  220  may be switched from the close state to the open state by the intake current formed by the intake device  120 . For example, by the intake current formed by using the intake device  120 , the dust collecting container door  220  may rotate around the first axis  222  in one direction, for example, in the second direction to open the first opening  211  provided at the dust collecting container main body  210 . 
     With reference to  FIGS.  2 A and  3 C , the locking controller  300  may apply pressure on the door latch portion  260  arranged at the dust collecting container  200  or release the pressure to switch the state of the dust collecting container door  220  between the lock state and the unlock state. For example, the locking controller  300  may be arranged to be movable in one direction (Z direction). As illustrated in  FIG.  3 C , a second driving motor  350  may generate power so that the locking controller  300  is movable in one direction (Z direction), for example, the locking controller  300  protrudes from or is accommodated in the accommodating portion  320 . The power generated by the second driving motor  350  may be transmitted to the locking controller  300  through a power transfer portion, for example, a 2-1 power transfer gear  360  by using a 2-2 power transfer gear  370 . When the locking controller  300  is accommodated in or protrudes from the accommodating portion  320 , the state of the dust collecting container door  220  may be switched between the lock state and the unlock state. 
     For example, when the locking controller  300  moves forward in one direction to protrude from the accommodating portion  320 , the state of the dust collecting container door  220  may be switched from the lock state to the unlock state. At this time, the locking controller  300  may apply pressure on the rotational force applying portion  261  provided at the door latch portion  260 . Accordingly, the rotational force applying portion  261  may be raised in one direction (Z direction). The second latch portion  262  supported by the rotational force applying portion  261  may rotate around the rotation shaft  264  in the clockwise direction or in the counterclockwise direction, and the locking between the second latch portion  262  and the first latch portion  225  may be released. This will be described in more detail with reference to  FIG.  5 A . 
     When the locking controller  300  moves forward in one direction to be accommodated in the accommodating portion  320 , the state of the dust collecting container door  220  may be switched from the unlock state to the lock state. At this time, the locking controller  300  may release pressure applied on the rotational force applying portion  261  provided at the door latch portion  260 . The elastic portion  263  may be expanded and simultaneously apply elastic force to the rotational force applying portion  261 . Accordingly, the rotational force applying portion  261  may descend in one direction (Z direction) and return to the original state. The second latch portion  262  supported by the rotational force applying portion  261  may rotate around the rotation shaft  264  in the clockwise direction or in the counterclockwise direction and be engaged with the first latch portion  225 . This will be described in more detail with reference to  FIG.  8   . 
     With reference to  FIGS.  2 A and  3 D , the pressurizer  400  may apply pressure on one side of the dust collecting container door  220  so that the dust collecting container door  220  closes the first opening  211  of the dust collecting container main body  210 , for example, the dust collecting container door  220  rotates around the first axis  222  in the clockwise direction or in the counterclockwise direction to be adjacent to the dust collecting container main body  210 . For example, when the state of the dust collecting container door  220  is switched to the close state from the open state, the elastic member  230  illustrated in  FIG.  2 A  may apply elastic force so that the state of the dust collecting container door  220  is switched from the open state to the close state. At this time, a gasket to improve sealing performance may be arranged at a circumferential portion of the first opening  211  provided at the dust collecting container main body  210 . Accordingly, when the state of the dust collecting container door  220  is switched from the open state to the close state, it may be difficult for the dust collecting container door  220  to completely block the first opening  211 . The pressurizer  400  according to an embodiment may apply additional pressure on one side of the dust collecting container door  220  in one direction in which the dust collecting container door  220  adjoins the dust collecting container main body  210  to close the first opening  211 . However, the disclosure is not limited thereto, and the elastic member  230  illustrated in  FIG.  2 A  may apply elastic force so that the state of the dust collecting container door  220  is switched from the close state to the open state. For example, when the elastic member  230  applies elastic force to switch the state of the dust collecting container door  220  from the close state to the open state, a user may more easily open the dust collecting container door  220 , which leads to improved user friendliness. At this time, pressure may be applied to the dust collecting container door  220  so that the state thereof is switched from the open state to the close state by the pressurizer  400  described below. 
     For example, the pressurizer  400  may include a base portion  410  having a shape of a ring with a hollow opening, a stepped portion  420  protruding from the base portion  410  in a direction of the second axis  401 , a guide portion  430  and a gear portion  440 . The pressurizer  400  may be arranged to be rotatable around the second axis  401  perpendicular to the first axis  222  in the clockwise direction or in the counterclockwise direction. 
     According to an embodiment of the disclosure, the base portion  410  may have a shape of a ring including a hollow opening  411 . For example, the base portion  410  may be supported to be rotatable in the direction of the second axis  401  with respect to the station main body  10 . 
     The stepped portion  420  may protrude from the base portion  410  in the direction of the second axis  401 . The stepped portion  420  according to an embodiment may extend at a certain angle in a circumferential direction of the base portion  410 , for example, at an angle less than or equal to 120° in the circumferential direction of the base portion  410 . For example, when the pressurizer  400  applies pressure on one side of the dust collecting container door  220 , one side of the stepped portion  420  may be arranged to face one side of the dust collecting container door  220 . 
     The guide portion  430  may guide a rotation passage to facilitate rotation in the direction of the second axis  401  with respect to the station main body  10 . For example, the guide portion  430  may have a shape of a guide extending in the circumferential direction of the base portion  410 . The guide portion  430  may be arranged to be coupled to a guide groove formed at the station main body  10 . 
     The gear portion  440  may receive power generated from a first driving motor  530 . For example, the gear portion  440  may extend in the circumferential direction of the base portion  410 . The gear portion  440  may be arranged not to overlap the guide portion  430 . The gear portion  440  according to an embodiment may be connected to the first driving motor  530  by using a power transfer member  550  transmitting power generated by the first driving motor  530  to the pressurizer  400 . 
     For example, the first driving motor  530  may generate power so that the pressurizer  400  may rotate around the second axis  401  in the clockwise direction or in the counterclockwise direction. In the disclosure, the first driving motor  530  and the second driving motor  350  are provided to generate the power required by the locking controller  300  and the pressurizer  400 ; however, the disclosure is not limited thereto. There may be one driving motor generating the power required by locking controller  300  and the pressurizer  400 , when necessary for design. 
     According to an embodiment of the disclosure, as the pressurizer  400  is arranged to be rotatable around the second axis  401  in the clockwise direction or in the counterclockwise direction, one side of the stepped portion  420  may be arranged to be or not to be in contact with one side of the dust collecting container door  220 . For example, when the dust collecting container door  220  closes the first opening  211 , one side of the stepped portion  420  may be arranged to be in contact with one side of the dust collecting container door  220 . When the dust collecting container door  220  opens the first opening  211 , one side of the stepped portion  420  may be arranged not to be in contact with one side of the dust collecting container door  220 . Hereinafter, a series of processes of automatically opening and closing the dust collecting container door  220  according to an embodiment is described with reference to  FIGS.  4 A to  9 B . 
       FIG.  4 A  is a partial cross-sectional view of a cleaning device in a state where a dust collecting container door has closed a first opening according to an embodiment.  FIG.  4 B  is a perspective view of a pressurizer and a dust collecting container door according to an embodiment. 
     With reference to  FIGS.  1 B and  4 A , when the vacuum cleaner  2  is docked on the dust collecting station  1 , the dust collecting container door  220  closing the first opening  211  of the dust collecting container main body  210  may be arranged to face the second opening  110  provided at the capturing portion  100 . 
     Moreover, the rotational force applying portion  261  provided at the door latch portion  260  may be arranged to face the locking controller  300 . At this time, the locking controller  300  may be accommodate in the accommodating portion  320  illustrated in  FIG.  3 A . Accordingly, the mutual locking between the first latch portion  225  and the second latch portion  262  may be maintained. Moreover, the dust collecting container door  220  may not rotate around the first axis  222  and remain in the close state. 
     Furthermore, when the dust collecting container door  220  closes the first opening  211 , and the mutual locking between the first latch portion  225  and the second latch portion  262  is maintained, one side of the stepped portion  420  included in the pressurizer  400  may be arranged not to be in contact with one side of the dust collecting container door  220  as illustrated in  FIG.  4 B . For example, the stepped portion  420  may be arranged under the hinge portion  221 . Accordingly, the pressurizer  400  may not apply unnecessary pressure on one side of the dust collecting container door  220 . 
       FIG.  5 A  is a partial cross-sectional view of a cleaning device in a state where a dust collecting container door has opened a first opening according to an embodiment.  FIG.  5 B  is a perspective view of a pressurizer and a dust collecting container door according to an embodiment. 
     With reference to  FIGS.  3 C and  5 A , when a signal to switch the state of the dust collecting container door  220  from the close state to the open state is input from an input portion (not shown) according to an embodiment of the disclosure, a processor (not shown) may apply a control signal to the second driving motor  350  to generate power. For example, the power generated by the second driving motor  350  may be transmitted to the 2-2 power transfer gear  370  through the 2-1 power transfer gear  360 . For example, the 2-2 power transfer gear  370  may be provided as a rack gear. Accordingly, the rotational force generated by the second driving motor  350  may be converted into power generating a straight-line motion in one direction (Z direction). The power transmitted to the 2-2 power transfer gear  370  may be transmitted to the locking controller  300  connected to the 2-2 power transfer gear  370 . Accordingly, the locking controller  300  may be raised in one direction (Z direction). 
     When the locking controller  300  which has received the power is raised in one direction (Z direction), the rotational force applying portion  261  may also be raised in one direction (Z direction). Accordingly, the second latch portion  262  supported by the rotational force applying portion  261  may rotate around the rotation shaft  264  in the counterclockwise direction. Then, the locking between the first latch portion  225  and the second latch portion  262  may be released. At this time, one side of the stepped portion  420  included in the pressurizer  400  may be arranged not to be in contact with one side of the dust collecting container door  220  as illustrated in  FIG.  5 B . For example, the stepped portion  420  may be arranged under the hinge portion  221 . 
     As illustrated in  FIGS.  5 A and  5 B , as the locking between the first latch portion  225  and the second latch portion  262  is released and one side of the stepped portion  420  included in the pressurizer  400  is arranged not to be in contact with one side of the dust collecting container door  220 , the dust collecting container door  220  may rotate around the first axis  222  and be opened. For example, by the intake current generated by the intake device  120 , the dust collecting container door  220  may rotate around the first axis  222  in the clockwise direction. 
       FIG.  6    is a perspective view of a pressurizer and a dust collecting container door according to an embodiment.  FIG.  7    is a perspective view of a pressurizer and a dust collecting container door according to an embodiment. 
     With reference to  FIGS.  3 D and  6   , when the state of the dust collecting container door  220  is switched from the open state to the close state according to an embodiment of the disclosure, the first driving motor  530  may be operated to generate power. The power generated by the first driving motor  530  may be transmitted to the pressurizer  400  by using the power transfer member  550 . For example, the power transfer member  550  may be arranged between the first driving motor  530  and the gear portion  440  and transmit the power generated by the first driving motor  530  to the gear portion  440 . 
     When the state of the dust collecting container door  220  is automatically switched from the open state to the close state, the pressurizer  400  may receive the power generated by the first driving motor  530  and rotate around the second axis  401 . When the state of the dust collecting container door  220  is automatically switched from the open state where the first opening  211  is opened to the close state where the first opening  211  is closed, the pressurizer  400  may rotate around the second axis  401  in the counterclockwise direction as illustrated in  FIG.  6   . At this time, the stepped portion  420  included in the pressurizer  400  may also rotate along the second axis  401  to be apart from the hinge portion  221 . As the stepped portion  420  rotates along the second axis  401  to be apart from the hinge portion  221 , one side of the stepped portion  420  may be in contact with one side of the dust collecting container door  220  and apply pressure thereon. Accordingly, the dust collecting container door  220  may rotate around the first axis  222  in the counterclockwise direction. In this manner, the state of the dust collecting container door  220  may be automatically switched from the open state to the close state. 
     With reference to  FIG.  7   , the pressurizer  400  according to an embodiment may further rotate around the second axis  401  in the counterclockwise direction in comparison with the pressurizer  400  illustrated in  FIG.  6   . At this time, the stepped portion  420  included in the pressurizer  400  may also additionally rotate along the second axis  401  to be apart from the hinge portion  221 . As the stepped portion  420  rotates additionally along the second axis  401  to be apart from the hinge portion  221 , one side of the stepped portion  420  may be in contact with one side of the dust collecting container door  220  and apply additional pressure thereon. Accordingly, the dust collecting container door  220  may additionally rotate around the first axis  222  in the counterclockwise direction to close the first opening  211 . In this manner, the state of the dust collecting container door  220  may be automatically switched from the open state to the close state. 
       FIG.  8    is a partial cross-sectional view of a cleaning device in a state where a dust collecting container door has closed a first opening according to an embodiment. 
     With reference to  FIGS.  3 C and  8   , when the dust collecting container door  220  closes the first opening  211 , according to an embodiment of the disclosure, a processor (not shown) may apply a control signal to the second driving motor  350  to generate power. For example, the power generated by the second driving motor  350  may be transmitted to the locking controller  300  through the 2-1 power transfer gear  360  and the 2-2 power transfer gear  370 . According to an embodiment of the disclosure, when the locking controller  300  which has received the power descends in one direction (Z direction), the pressure applied on the rotational force applying portion  261  from the locking controller  300  may be released. At this time, the elastic portion  263  may be expanded, and by the elastic force applied from the elastic portion  263 , the rotational force applying portion  261  may descend in one direction (Z direction). 
     As the rotational force applying portion  261  descends in one direction (Z direction), the second latch portion  262  supported by the rotational force applying portion  261  may rotate around the rotation shaft  264  in the clockwise direction. Accordingly, the first latch portion  225  may be engaged with the second latch portion  262  and the unlock state may be switched to the lock state. At this time, one side of the stepped portion  420  included in the pressurizer  400  may stay in contact with one side of the dust collecting container door  220 . 
     According to another embodiment of the disclosure, the locking controller  300  which has received the power may descend in advance in one direction (Z direction). At this time, the second latch portion  262  may rotate around the rotation shaft  264  in the clockwise direction and return to an initial position. According to an embodiment of the disclosure, when the first latch portion  225  rotates along with the dust collecting container door  220 , the first latch portion  225  may overcome the elastic force applied from the elastic portion  263  and be engaged with the second latch portion  262 . Accordingly, the unlock state of the first latch portion  225  and the second latch portion  262  may be switched to the lock state. 
       FIG.  9 A  is a partial cross-sectional view of a cleaning device in a state where a dust collecting container door has closed a first opening according to an embodiment.  FIG.  9 B  is a perspective view of a pressurizer and a dust collecting container door according to an embodiment. 
     With reference to  FIGS.  3 D,  9 A, and  9 B , when the state of the first latch portion  225  and the second latch portion  262  is switched from the unlock state to the lock state, a processor (not shown) may apply a control signal to the first driving motor  530  to generate power. The pressurizer  400  according to an embodiment may receive the power generated by the first driving motor  530  and rotate around the second axis  401 . For example, the pressurizer  400  may rotate around the second axis  401  in the clockwise direction. At this time, the stepped portion  420  included in the pressurizer  400  may also rotate along the second axis  401  to be adjacent to the hinge portion  221 . As the stepped portion  420  rotates around the second axis  401  to be adjacent to the hinge portion  221 , one side of the stepped portion  420  may not be in contact with one side of the dust collecting container door  220 . That is, when the dust collecting container door  220  closes the first opening  211 , and the mutual locking between the first latch portion  225  and the second latch portion  262  is maintained, one side of the stepped portion  420  included in the pressurizer  400  may be arranged not to be in contact with one side of the dust collecting container door  220 . The pressurizer  400  may rotate around the second axis  401  until the stepped portion  420  is placed under the hinge portion  221  as illustrated in  FIG.  9 B . 
     The embodiments described above are provided merely as an example and a person skilled in the art may be able to make modifications and equivalent embodiments from the embodiments of the disclosure. Accordingly, the true scope of the technical protection of the disclosure should be defined by the technical ideas described in the following scope of claims.