Washing machine and control method thereof

Abstract

The washing machine includes: a housing; a tub disposed within the housing; a detergent supply device connected to the tub; and a water supply guide provided to guide water to the detergent supply device. The detergent supply device includes a drawer capable of accommodating a detergent, a filter detachably mounted to the drawer, and a drawer housing provided to be capable of accommodating the drawer. The drawer housing includes a washing hole through which a portion of water supplied to the drawer housing is guided to the filter and which is provided to be capable of supplying water to an outer side of the filter opposite to an inner side of the filter collecting foreign matter.

Description

Technical Field

[0001] The present disclosure relates to a washing machine having a filter and a control method of the washing machine. Background Art

[0002] A washing machine is an apparatus that performs washing through friction by stirring laundry, water, and detergent together within a tub using the driving force of a driving motor.

[0003] Regardless of the type of the washing machine, operations performed by the washing machine include a washing operation of supplying detergent and water to a tub containing clothes and washing the clothes while rotating the drum; a rinsing operation of rinsing the clothes by supplying water to the tub and rotating the drum; and a dehydrating operation of draining water from the tub and rotating the drum to remove water from the clothes.

[0004] The washing machine includes a pump device for discharging water stored in a tub to the outside of the washing machine during a washing operation, a rinsing operation and / or a dehydrating operation. The pump device is configured to return water discharged from the tub to the tub during a washing operation and / or a rinsing operation.

[0005] The washing machine may include a filter for filtering out foreign matter included in water discharged from the pump device. Summary of the invention

[0006] Technical issues

[0007] Aspects of the present disclosure provide a washing machine capable of increasing a replacement cycle of a filter.

[0008] The technical problems to be achieved by the present specification are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood from the following description by those skilled in the art to which the present disclosure belongs.

[0009] Technical Solution

[0010] A washing machine according to the concept of the present disclosure may include a housing, a tub disposed in the housing, a detergent supplier connected to the tub, and a water supply guide configured to guide water to the detergent supplier. The detergent supplier may include a drawer configured to accommodate detergent, a filter detachably mounted in the drawer, and a drawer housing configured to accommodate the drawer. The drawer housing may include a washing hole configured to guide a portion of the water supplied to the drawer housing to the filter and to supply water to the outside of the filter opposite to the inside of the filter where foreign matter is collected.

[0011] The drawer may include a detergent receiving portion configured to receive detergent. The drawer case may include a water supply hole configured to guide a portion of water supplied to the drawer case to the detergent receiving portion.

[0012] The washing machine may further include a pump device configured to move water discharged from the tub to the tub. The filter may be positioned to filter the water moved from the pump device to the tub.

[0013] The drawer case may include a tub port configured to discharge water supplied to the drawer through the water supply hole into the tub together with detergent. The tub port may be configured to guide water supplied to the filter through the washing hole to the tub.

[0014] The water supply guide may be positioned closer to the washing hole than the water supply hole.

[0015] The washing machine may further include a valve configured to open or close the water supply guide and a controller configured to control the valve. The controller may be configured to open the valve for a predetermined time during the drainage operation.

[0016] The valve may be an electronic valve whose opening degree is adjusted. The controller may be configured to fully open the electronic valve during a water supply operation, and partially open the electronic valve for a predetermined time during a water discharge operation.

[0017] The water supply guide may include a first guide configured to guide water to the water supply hole and a second guide configured to guide water to the washing hole.

[0018] The washing machine may further include a first valve configured to open or close the first guide, a second valve configured to open or close the second guide, and a controller configured to control the first valve and the second valve.

[0019] The controller may be configured to open the second valve for a predetermined time based on receipt of a user input for cleaning the filter.

[0020] The controller may be configured to open the second valve for a predetermined time during a drain operation.

[0021] The washing machine may further include a pump device configured to move water discharged from the tub to the tub. The filter may be positioned to filter water moving from the pump device to the tub. The controller may be configured to open the second valve for a predetermined time based on termination of operation of the pump device.

[0022] The filter may be located behind the detergent receiving portion. The water supply hole may be located above the detergent receiving portion. The washing hole may be located above the filter.

[0023] The washing machine may further include a pump device configured to move water discharged from the tub to the outside of the housing. The filter may be positioned to filter the water moved from the pump device to the outside of the housing.

[0024] The drawer case may include a case outlet configured to discharge water passing through the filter to the outside of the drawer case. The case outlet may be configured to guide water supplied to the filter through the washing hole to the outside of the drawer case.

[0025] A washing machine according to the concept of the present disclosure may include a tub and a detergent supplier connected to the tub. The detergent supplier may include a drawer housing, a drawer including a detergent containing portion containing detergent and configured to be inserted into or removed from the drawer housing, and a filter detachably mounted in the drawer. The drawer housing may include a water supply hole configured to guide a portion of water supplied to the drawer housing to the detergent containing portion and a washing hole configured to guide another portion of water supplied to the drawer housing to the filter and supply water to the outside of the filter, the outside being opposite to the inner side of the filter for filtering out foreign matter.

[0026] The drawer case may include a tub port configured to discharge detergent of the drawer to the tub, wherein the tub port may guide water supplied to the filter through the washing hole to the tub.

[0027] The drawer case may include a case outlet configured to discharge water passing through the filter to the outside of the drawer case, wherein the case outlet may guide the water supplied to the filter through the washing hole to the outside of the drawer case.

[0028] According to the concept of the present disclosure, there is provided a control method of a washing machine including a detergent supplier having a drawer and a filter, the control method may include opening a water supply guide for supplying water to the detergent supplier for a predetermined time during a drain operation.

[0029] The water supply guide may include a first guide configured to guide water to the drawer and a second guide to guide water to the filter. Opening the water supply guide may include opening the second guide for a predetermined time during the drainage operation.

[0030] Technical Effects

[0031] According to the concept of the present disclosure, a washing machine may increase a replacement cycle of a filter by supplying water to the filter to wash a portion of a filtering surface.

[0032] Effects that can be achieved by the present disclosure are not limited to the above-mentioned effects, and other effects that are not mentioned will be clearly understood from the following description by a person of ordinary skill in the technical field to which the present disclosure belongs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A washing machine according to an embodiment is shown.

[0034] Figure 2 Show Figure 1 A cross section of a washing machine is shown in FIG.

[0035] Figure 3 Show Figure 1 The detergent supply device shown in .

[0036] Figure 4 yes Figure 3 An exploded view of the detergent supply unit is shown in .

[0037] Figure 5 Show Figure 4 Drawers shown in .

[0038] Figure 6 exist Figure 3 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water filtered by passing through the filter.

[0039] Figure 7 exist Figure 3 The flow of water for washing the filter is shown in the cross section of the detergent supply device shown in FIG.

[0040] Figure 8 is a control block diagram of a washing machine according to an embodiment.

[0041] Fig. 9 A cross section of a washing machine according to an embodiment is shown.

[0042] Fig.10 yes Fig. 9 An exploded view of the detergent supply unit is shown in .

[0043] Fig.11 Show Fig. 9 Drawers shown in .

[0044] Fig.12 exist Fig.10 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water filtered by passing through the filter.

[0045] Fig.13 exist Fig.10 The flow of water for washing the filter is shown in the cross section of the detergent supply device shown in FIG.

[0046] Fig.14 is a control block diagram of a washing machine according to an embodiment.

[0047] Fig.15 A cross section of a washing machine according to an embodiment is shown.

[0048] Fig.16 yes Fig.15 An exploded view of the detergent supply unit is shown in .

[0049] Fig.17 Show Fig.14 Drawers shown in .

[0050] Fig.18 Shown in it Fig.17 The drawer shown in FIG. 1 is in a state where the recycle door is closed and the recycle door is opened.

[0051] Fig.19 exist Fig.16 The flow of water flowing into the pump device and then discharged into the tub is shown in the cross-section of the detergent supply device shown in FIG.

[0052] Fig. 20 exist Fig.16 The flow of water that washes the filter and is then discharged into the tub is shown in the cross-section of the detergent supply device shown in FIG.

[0053] Fig.21 exist Fig.16 The flow of water supplied from the pump device and then discharged to the outside of the washing machine is shown in the cross-section of the detergent supply device shown in FIG.

[0054] Fig. 22 exist Fig.16 The flow of water that washes the filter and is then discharged to the outside of the washing machine is shown in the cross-section of the detergent supply device shown in FIG.

[0055] Fig.23 is a control block diagram of a washing machine according to an embodiment.

[0056] Fig.24 A cross section of a washing machine according to an embodiment is shown.

[0057] Fig.25 yes Fig.24 An exploded view of the detergent supply unit is shown in .

[0058] Fig.26 exist Fig.25 The flow of water supplied to the detergent containing portion is shown in the cross-section of the detergent supply device shown in FIG.

[0059] Fig. 27 exist Fig.25 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water filtered by passing through the filter.

[0060] Fig.28 exist Fig.25 The flow of water for washing the filter is shown in the cross section of the detergent supply device shown in FIG.

[0061] Fig.29 is a control block diagram of a washing machine according to an embodiment.

[0062] Fig.30 A cross section of a washing machine according to an embodiment is shown.

[0063] Fig.31 yes Fig.30 An exploded view of the detergent supply unit is shown in .

[0064] Fig.32 exist Fig.30 The flow of water supplied to the detergent containing portion is shown in the cross-section of the detergent supply device shown in FIG.

[0065] Fig.33 exist Fig.30 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water filtered by passing through the filter.

[0066] Fig.34 exist Fig.30 The flow of water for washing the filter is shown in the cross section of the detergent supply device shown in FIG.

[0067] Fig.35 is a control block diagram of a washing machine according to an embodiment.

[0068] Fig.36 A cross section of a washing machine according to an embodiment is shown.

[0069] Fig.37 yes Fig.36 An exploded view of the detergent supply unit is shown in .

[0070] Fig.38 exist Fig.37 The flow of water supplied to the detergent containing portion is shown in the cross-section of the detergent supply device shown in FIG.

[0071] Fig.39 exist Fig.37 The flow of water supplied from the pump device and then discharged to the tub is shown in the cross-section of the detergent supply device shown in FIG.

[0072] Fig.40 exist Fig.37 The flow of water that washes the filter and is then discharged into the tub is shown in the cross-section of the detergent supply device shown in FIG.

[0073] Fig.41 exist Fig.37 The flow of water supplied from the pump device and then discharged to the outside of the washing machine is shown in the cross-section of the detergent supply device shown in FIG.

[0074] Fig.42 exist Fig.37 The flow of water that washes the filter and is then discharged to the outside of the washing machine is shown in the cross-section of the detergent supply device shown in FIG.

[0075] Fig.43 is a control block diagram of a washing machine according to an embodiment.

[0076] Fig.44 is a control block diagram illustrating a configuration of a washing machine according to various embodiments.

[0077] Fig.45 An example of a washing cycle according to an embodiment is shown.

[0078] Fig.46 is a flowchart illustrating an example of a control method of a washing machine according to various embodiments.

[0079] Fig.47 is a flowchart illustrating an example of a control method of a washing machine according to various embodiments.

[0080] Fig.48 is a control block diagram illustrating a configuration of a washing machine according to various embodiments.

[0081] Fig.49 is a flowchart illustrating an example of a control method of a washing machine according to various embodiments. DETAILED DESCRIPTION

[0082] The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutes of the corresponding embodiments.

[0083] In conjunction with the description of the drawings, like reference numerals may be used for similar or related components.

[0084] Singular forms of nouns corresponding to items may include one or more items unless the relevant context clearly indicates otherwise.

[0085] In this document, phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C" and "at least one of A, B or C" may include any or all possible combinations of the items listed together in the corresponding phrases in the phrases.

[0086] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0087] Terms such as “first” or “second” may be used only to distinguish a component from other components, but not to limit the components in other aspects (for example, importance or order).

[0088] A certain (e.g., first) component is referred to as being "coupled" or "connected" to another (e.g., second) component with or without the term "functionally" or "communicatively." When mentioned, this means that any of the above components may be connected to the other components directly (e.g., by wires), wirelessly, or via a third component.

[0089] It will be understood that when the terms “includes,” “comprises,” “including” and / or “comprising” are used in this specification, the existence of stated features, figures, steps, operations, components, members or combinations thereof are listed, but the existence or addition of one or more other features, figures, steps, operations, components, members or combinations thereof is not excluded.

[0090] It will be understood that when a component is referred to as being "connected to", "coupled to", or "supported by", or "in contact with", it can be directly or indirectly connected to, coupled to, or supported by, or in contact with, another component. When a component is indirectly connected to, coupled to, or supported by, or in contact with, another component, it may be connected to, coupled to, or supported by, or in contact with, another component through a third component.

[0091] It will also be understood that when a component is referred to as being "on" or "over" another component, it can be directly on the other component or intervening components may also be present.

[0092] A washing machine according to various embodiments may be an example of a laundry treating apparatus.

[0093] The washing machine according to various embodiments may include a top-loading washing machine in which an inlet for allowing a user to put in or take out laundry faces upward, or a front-loading washing machine in which an inlet for allowing a user to put in or take out laundry faces forward. The washing machine according to various embodiments may include another type of washing machine in addition to the top-loading washing machine and the front-loading washing machine.

[0094] A top-loading washing machine may wash clothes by using a water flow generated by a rotating body such as an agitator. A front-loading washing machine may wash clothes by rotating a drum to repeatedly lift and drop the clothes. A front-loading washing machine may include a lifter for lifting the clothes. Washing machines according to various embodiments may include washing machines using another washing method other than the above-described washing method.

[0095] Hereinafter, a washing machine according to various embodiments will be described in detail with reference to the accompanying drawings.

[0096] Figure 1 A washing machine according to an embodiment is shown. Figure 2 Show Figure 1 A cross section of a washing machine is shown in FIG.

[0097] Reference Figure 1 and Figure 2 , a washing machine 1 according to various embodiments may include a housing 10 in which various components are accommodated.

[0098] The housing 10 may include a housing opening 11 for allowing access to the interior of the drum 30. The tub 20 may include a tub opening 21 corresponding to the housing opening 11. The drum 30 may include a drum opening 31 corresponding to the housing opening 11 and the tub opening 21. Clothes may be put into or taken out of the drum 30 through the housing opening 11, the tub opening 21, and the drum opening 31. The housing opening 11 may face substantially forward. The tub opening 21 may face substantially forward. The drum opening 31 may face substantially forward.

[0099] The washing machine 1 may include a control panel 14. The control panel 14 may be provided on the housing 10. The control panel 14 may include an input device 14a for receiving an operation command from a user and a display 14b for displaying operation information of the washing machine 1. The control panel 14 may provide a user interface for enabling a user to interact with the washing machine 1.

[0100] The input device 14a can provide a signal to the controller 90 (see Figure 8 , Fig.14 , Fig.23 , Fig.29 , Fig.35 and Fig.43 ) provides an electrical output signal corresponding to the user input. The input device 14a may include, for example, a power button, a start button, a process selection dial (or a process selection button), and a wash / rinse / spin setting button. The input button may include, for example, a touch switch, a push switch, a slide switch, a toggle switch, a micro switch, or a touch switch.

[0101] The display 14b may receive a signal from the controller 90 and display information corresponding to the received signal. The display 14b may include a screen and an indicator, wherein the screen displays the washing course and the operation time of the washing machine 1 selected by rotating the course selection dial (or pressing the course selection button), and the indicator displays the washing setting / rinsing setting / spinning setting selected by the setting button. The display 14b may include, for example, a liquid crystal display (LCD) panel, a light emitting diode (LED) panel, etc.

[0102] The washing machine 1 may include a door 40 for opening or closing a housing opening 11 provided in the housing 10. The door 40 may be rotatably mounted on the housing 10 by a hinge 41. At least a portion of the door 40 may be transparent or translucent to show the interior of the housing 10.

[0103] The washing machine 1 may include a tub 20 disposed within the housing 10 to store water. The tub 20 may be supported on the inner side of the housing 10. The tub 20 may be substantially in the shape of a cylinder with one side thereof opened.

[0104] The tub 20 may be elastically supported from the housing 10 by the damper 29. The damper 29 may connect the tub 20 to the housing 10. The damper 29 may attenuate vibration generated during rotation of the drum 30 by absorbing vibration energy between the tub 20 and the housing 10 when the vibration is transmitted to the tub 20 and / or the housing 10.

[0105] The washing machine 1 may include a drum 30 for accommodating laundry. The drum 30 may be rotatably disposed in the tub 20. The drum 30 may perform washing, rinsing and / or dehydration while rotating in the tub 20. The drum 30 may include a through hole 34 connecting the inner space of the drum 30 to the inner space of the tub 20. The drum 30 may be substantially in the shape of a cylinder with one side open. On the inner circumferential surface of the drum 30, a plurality of lifters 35 may be provided to lift and drop the laundry when the drum 30 rotates.

[0106] The washing machine 1 may include a driver 50 configured to rotate the drum 30. The driver 50 may include a driving motor 51 and a rotating shaft 56 for transmitting the driving force generated by the driving motor 51 to the drum 30. The rotating shaft 56 may penetrate the tub 20 and be connected to the drum 30. The driver 50 may rotate the drum 30 forward or backward to perform washing, rinsing and / or dehydration operations.

[0107] The drum 30 can be connected to the drive motor 51 via the rotating shaft 56, and depending on the connection type between the rotating shaft 56 and the drive motor 51, there can be a direct drive type and an indirect drive type, in which the rotating shaft 56 is directly connected to the drive motor 51 to rotate the drum 30, and in which pulleys 52 and 57 are connected between the drive motor 51 and the rotating shaft 56 to drive the drum 30. Figure 2 A case is shown in which the washing machine 1 is of an indirect drive type. However, the washing machine 1 according to various embodiments may be of a direct drive type.

[0108] The washing machine 1 according to various embodiments may be an indirect drive type. One end of the rotating shaft 56 may be connected to the rear of the drum 30, and the other end of the rotating shaft 56 may be connected to the shaft pulley 57 to obtain a driving force from the driving motor 51. The motor pulley 52 may be formed on the rotating shaft of the driving motor 51. The transmission belt 53 may be provided between the motor pulley 52 and the shaft pulley 57, and the rotating shaft 56 may be driven by the transmission belt 53.

[0109] The driving motor 51 may be located below the tub 20. The driving belt 53 may drive the rotating shaft 56 while rotating clockwise or counterclockwise in the up-and-down direction of the tub 20.

[0110] In the rear of the tub 20, a bearing housing 58 for rotatably supporting the rotating shaft 56 may be installed. The bearing housing 58 may be made of an aluminum alloy. When the tub 20 is injection molded, the bearing housing 58 may be inserted into the rear of the tub 20.

[0111] The water supply device 60 may supply water to the tub 20. The water supply device 60 may include a water supply guide 61 and a water supply valve 62 disposed in the water supply guide 61. The water supply guide 61 may be connected to an external water supply source. The water supply guide 61 may extend from the external water supply source to the detergent supply device 100 and / or the tub 20. The water supply guide 61 may guide water to the detergent supply device 100. Water may be supplied to the tub 20 via the detergent supply device 100. Water may be supplied to the tub 20 without passing through the detergent supply device 100.

[0112] The water supply valve 62 may open or close the water supply guide 61 in response to an electrical signal from the controller 90. The water supply valve 62 may allow or prevent water from being supplied from an external water supply source to the tub 20. The water supply valve 62 may include, for example, a solenoid valve that opens or closes in response to an electrical signal.

[0113] The washing machine 1 may include a pump device 70. The pump device 70 may discharge water contained in the tub 20 to the outside. The pump device 70 may be connected to the tub 20.

[0114] The washing machine 1 may include a connection guide 81 connecting the tub 20 to the pump device 70 so that water in the tub 20 flows into the pump device 70. The connection guide 81 may guide the water discharged from the tub 20 to the pump device 70. In the lower portion of the tub 20, a drain pipe 22 for discharging the water stored in the tub 20 to the outside of the tub 20 may be formed. The drain pipe 22 may be connected to the connection guide 81.

[0115] The washing machine 1 may include a drainage guide 82 extending from the pump device 70 to the outside of the housing 10 to discharge water entering the pump device 70 to the outside of the housing 10. The drainage guide 82 may guide the water of the pump device 70 to the outside of the housing 10. The drainage guide 82 may guide the water of the pump device 70 to the outside of the housing 10. The drainage guide 82 may guide the water of the pump device 70 to the outside of the housing 10. Figure 8 ) pumped water.

[0116] In order to circulate the water entering the pump device 70 to the tub 20, the washing machine 1 may include a circulation guide 83 extending from the pump device 70. The circulation guide 83 may be connected to the detergent supply device 100. The circulation guide 83 may guide the water supplied by the circulation pump 71 (see FIG. 1 ) provided in the pump device 70. Figure 8 The water pumped by the circulation pump 71 of the pump device 70 may flow into the tub 20 via the detergent supply device 100.

[0117] The washing machine 1 may include a detergent supply device 100 configured to supply detergent to the tub 20. The detergent supply device 100 may be configured to supply detergent to the tub 20 during the water supply process. The water supplied by the water supply guide 61 may be mixed with the detergent via the detergent supply device 100. The water mixed with the detergent may be supplied to the tub 20. The detergent supply device 100 may be connected to the tub 20 by the tub guide 63. The detergent may include a powdered detergent, a liquid detergent, a pre-washing detergent, a fabric softener, or a bleach. The detergent may include a laundry detergent, a dryer detergent, a deodorant, a disinfectant, or an air freshener.

[0118] Figure 3 Show Figure 1 The detergent supply device shown in . Figure 4 yes Figure 3 An exploded view of the detergent supply unit is shown in . Figure 5 Show Figure 4 Drawers shown in . Figure 6 exist Figure 3 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water filtered by passing through the filter. Figure 7 exist Figure 3 The flow of water for washing the filter is shown in the cross section of the detergent supply device shown in FIG.

[0119] Reference Figures 3 to 5 , the detergent supply device 100 may include a drawer housing 100a installed in the housing 10. The drawer housing 100a may accommodate at least a portion of the drawer 110. The drawer housing 100a may include a housing body 101, a housing cover 105, and a housing guide 107. The housing body 101, the housing cover 105, and the housing guide 107 may be integrated into one body.

[0120] The housing body 101 may include a drawer opening 102 through which a portion of the drawer 110 passes. The drawer opening 102 may be opened forward. The opened upper side of the housing body 101 may be covered by a housing cover 105.

[0121] The housing body 101 may include a tub port 103 connected to the tub guide 63. The tub port 103 may be located at a lower portion of the housing body 101. According to the tub port 103 being connected to the tub guide 63, the drawer housing 100a may be connected to the tub 20. Water and / or detergent in the detergent supply device 100 may be supplied to the tub 20 through the tub port 103. The tub port 103 may discharge the water supplied to the drawer 110 together with the detergent to the tub 20 through the water supply hole 108. The tub port 103 may guide the water supplied to the filter 120 through the washing hole 109 to the tub 20.

[0122] The housing body 101 may include a housing inlet 104 connected to the circulation guide 83. The housing inlet 104 may be located at the rear of the housing body 101. According to the housing inlet 104 being connected to the circulation guide 83, the drawer housing 100a may be connected to the pump device 70. Water discharged from the pump device 70 may flow into the detergent supply device 100 through the housing inlet 104.

[0123] The housing cover 105 may cover the opened upper side of the housing body 101. The housing cover 105 may be mounted on the housing body 101. The housing cover 105 may include a water supply port 106. The water supply port 106 may be connected to the water supply guide 61. According to the connection of the water supply port 106 to the water supply guide 61, water provided from a water supply source may be supplied to the detergent supply device 100. The water supply port 106 may include a water supply port for hot water and a water supply port for cold water.

[0124] The housing guide 107 may be installed in the housing body 101. The housing guide 107 may be installed in the housing cover 105. The housing guide 107 may be located between the housing body 101 and the housing cover 105. The housing guide 107 may guide water supplied to the detergent supply device 100 to the detergent containing portion 113 and / or the filter 120 together with the housing cover 105. The housing guide 107 may include a guide rib 107a for guiding water received through the water supply port 106.

[0125] The housing guide 107 may include a water supply hole 108 communicating with the detergent receiving portion 113. The water supply hole 108 may be formed toward the detergent receiving portion 113. The water supply hole 108 may be located above the detergent receiving portion 113. The water supply hole 108 may discharge a portion of water supplied to the detergent supply device 100 through the water supply port 106 to the detergent receiving portion 113.

[0126] The housing guide 107 may include a washing hole 109 formed to communicate with the filter mounting portion 116. The washing hole 109 may be located behind the water supply hole 108. The washing hole 109 may be formed toward the filter mounting portion 116. The washing hole 109 may be located above the filter mounting portion 116. The washing hole 109 may discharge a portion of the water supplied to the detergent supply device 100 through the water supply port 106 to the filter mounting portion 116. The washing hole 109 may discharge a portion of the water supplied to the detergent supply device 100 through the water supply port 106 to the filter 120 located in the filter mounting portion 116. The washing hole 109 may guide a portion of the water supplied to the drawer housing 100a to the filter 120. The washing hole 109 may supply the water supplied to the drawer housing 100a to the outside of the filter 120, which is opposite to the inside of the filter 120 where foreign matter is collected.

[0127] The water supply guide 61 may be located closer to the washing hole 109 than the water supply hole 108 .

[0128] The detergent supply device 100 may include a drawer 110 accommodated in a drawer case 100a. At least a portion of the drawer 110 may be accommodated in the drawer case 100a. The drawer 110 may be inserted into or removed from the drawer case 100a.

[0129] The drawer 110 may include a drawer body 111 accommodated in the drawer housing 100a and a drawer handle 112. The drawer body 111 may be mounted on the drawer handle 112. The drawer handle 112 may be exposed to the outside of the housing 10. The user may take the drawer 110 out of the drawer housing 100a by using the drawer handle 112.

[0130] The drawer body 111 may include a detergent accommodation portion 113. The detergent accommodation portion 113 may accommodate detergent. Figure 4 A plurality of detergent receiving portions 113 are shown. However, a single detergent receiving portion 113 may be provided. A user may take the drawer 110 out of the drawer housing 100a to put detergent into the detergent receiving portion 113.

[0131] The drawer body 111 may include a drawer outlet 114 for discharging detergent and / or water in the detergent receiving portion 113 to the drawer housing 100a. The detergent receiving portion 113 may be communicated with the space between the drawer 110 and the drawer housing 100a through the drawer outlet 114. The drawer outlet 114 may be located between the detergent receiving portion 113 and the filter mounting portion 116.

[0132] The drawer body 111 may include a filter mounting portion 116 formed to accommodate the filter 120. The filter mounting portion 116 may be located behind the detergent accommodating portion 113. The size of the filter mounting portion 116 may be greater than that of the filter 120 to form a space between the filter mounting portion 116 and the filter 120 for water passing through the filter 120.

[0133] The drawer outlet 114 may discharge water in the filter installation portion 116 to the drawer case 100a. The filter installation portion 116 may communicate with a space between the drawer 110 and the drawer case 100a through the drawer outlet 114.

[0134] The filter mounting portion 116 may include a filter inlet accommodating portion 116a accommodating therein a filter inlet 124 of the filter 120. The filter inlet accommodating portion 116a may extend in a direction in which the filter 120 is mounted in the filter mounting portion 116. The filter inlet accommodating portion 116a may be located in a rear portion of the filter mounting portion 116. The filter inlet accommodating portion 116a may be located to correspond to the housing inlet 104.

[0135] The detergent supply device 100 may include a filter 120 detachably mounted in the drawer 110. The filter 120 may be mounted in the filter mounting portion 116 of the drawer 110. The filter 120 may be located behind the detergent holding portion 113. The filter 120 may filter foreign matter from the water discharged from the pump device 70. The filter 120 may be positioned to filter the water moving from the pump device 70 to the tub 20.

[0136] The filter 120 may include a filter body 121 forming a space for collecting foreign matter therein. The filter body 121 may include a body opening 121a for communicating the inner space with the outside. The body opening 121a may be located at least one side of the filter body 121. The body opening 121a may be located on one side of the filter body 121 facing the washing hole 109.

[0137] The filter 120 may include a filter portion 122 disposed in a body opening 121 a of the filter body 121 . The filter portion 122 may include a mesh filter. The filter portion 122 may filter out foreign matter having a fine size. At least a portion of the filter portion 122 may face the washing hole 109 .

[0138] The filter 120 may include a filter inlet 124 into which water discharged from the pump device 70 flows. The water discharged from the pump device 70 may be filtered by flowing into the filter 120 through the filter inlet 124 and then passing through the filtering portion 122. The filter inlet 124 may be connected to the housing inlet 104. A sealing member may be provided between the filter inlet 124 and the housing inlet 104.

[0139] Reference Figure 2 and Figure 6 , the washing machine 1 according to various embodiments may filter foreign matter from the circulating water while circulating the water in the tub 20 .

[0140] The water discharged from the pump device 70 toward the tub 20 may be guided along the circulation guide 83. The water guided along the circulation guide 83 may flow into the detergent supply device 100 through the housing inlet 104. The water flowing through the housing inlet 104 may flow into the inner space of the filter 120 through the filter inlet 124 connected to the housing inlet 104. When the water flowing into the inner space of the filter 120 moves to the outside of the filter 120 through the filter portion 12, foreign matter may be filtered out of the water.

[0141] The filter portion 122 may include a filter side 122a facing the inside of the filter 120. When water flowing through the filter inlet 124 moves from the inside to the outside of the filter 120, foreign matter may be filtered out of the water, and the foreign matter filtered out by passing through the filter portion 122 may be collected on the filter side 122a of the filter portion 122.

[0142] The water that has passed through the filter 120 and from which foreign matter has been filtered out can be discharged to the space between the drawer body 111 and the housing body 101 through the drawer outlet 114. The water discharged to the space between the drawer body 111 and the housing body 101 can be discharged through the tub port 103. The water discharged through the tub port 103 can be guided to the tub 20 through the tub guide 63.

[0143] According to this configuration, since the washing machine 1 according to various embodiments filters foreign matter from water circulating through the tub 20 , the amount of foreign matter discharged from the washing machine 1 (particularly, the amount of foreign matter having a fine size) may be reduced.

[0144] Reference Figure 2 and Figure 7 , the washing machine 1 according to various embodiments may wash the filter 120 when water is supplied to the detergent supply device 100 through the water supply device 60 .

[0145] Water supplied by the water supply device 60 may flow into the interior of the detergent supply device 100 through the water supply port 106. The water flowing into the detergent supply device 100 may be guided in a space between the housing cover 105 and the housing guide 107 by the guide ribs 107a.

[0146] A portion of the water in the space between the housing cover 105 and the housing guide 107 may be discharged to the detergent holding portion 113 through the water supply hole 108. The water discharged to the detergent holding portion 113 may be discharged to the space between the drawer body 111 and the housing body 101 through the drawer outlet 114 together with the detergent in the detergent holding portion 113. The water discharged to the space between the drawer body 111 and the housing body 101 may be discharged through the tub port 103. The water discharged through the tub port 103 may be guided to the tub 20 through the tub guide 63.

[0147] Another part of the water in the space between the housing cover 105 and the housing guide 107 can be discharged to the filter mounting portion 116 through the washing hole 109. The water discharged to the filter mounting portion 116 can be discharged toward the filter 120. The water discharged through the washing hole 109 can be discharged toward the outside of the filter 120. The water discharged through the washing hole 109 can be discharged to the opposite side of the filter side 122a of the filter 120. Because water is supplied to the side of the filter 120 opposite to the filter side 122a where foreign matter is collected, the foreign matter collected on the filter side 122a can be separated from the filter side 122a. The foreign matter collected on the filter side 122a of the filter portion 122 (located at the upper side of the filter 120 facing the washing hole 109) can move to the lower part of the filter 120. At least a part of the foreign matter collected on the filter side 122a of the filter portion 122 (located at the front, rear, left or right side of the filter 120) can move to the lower part of the filter 120.

[0148] The water washing the filter 120 can move to the space between the drawer body 111 and the housing body 101 through the drawer outlet 114. The water moved to the space between the drawer body 111 and the housing body 101 can be discharged through the tub port 103. The water discharged through the tub port 103 can be discharged to the tub 20 through the tub guide 63.

[0149] According to this configuration, the washing machine 1 according to various embodiments may wash the filter 120 with water supplied through the water supply device 60 , thereby extending the life of the filter 120 and increasing a replacement cycle of the filter 120 .

[0150] Figure 8 is a control block diagram of a washing machine according to an embodiment.

[0151] Reference Figure 8The washing machine 1 according to the embodiment may include a control panel 14 for interacting with a user, a driver 50 for rotating the drum 30, a water supply device 60 for supplying water to the tub 20, a pump device 70 for discharging water contained in the tub 20 to the outside, and a controller 90 for controlling various components of the washing machine 1. The control panel 14 may include an input device 14a and a display 14b, and operates based on a control signal from the controller 90.

[0152] The driver 50 may rotate the drum 30. The driver 50 may include a driving circuit for supplying a driving current to the driving motor 51, and the driving circuit may supply the driving current to the driving motor 51 in response to a driving signal from the controller 90.

[0153] In an embodiment, the driver 50 may include a rectifier circuit for rectifying AC power from an external power source, a DC link circuit for removing fluctuations in the rectified power and outputting DC power, an inverter circuit for converting the DC power into sinusoidal drive power and outputting a drive current to the drive motor 51, a current sensor for measuring the drive current supplied to the drive motor 51, and a gate driver for turning on / off a switching device included in the inverter circuit based on a drive signal from the controller 90.

[0154] The water supply device 60 may supply water supplied from an external power source to the tub 20 based on a control signal from the controller 90 .

[0155] The water supply device 60 according to the embodiment may include a water supply valve 62 provided in the water supply guide 61 to supply water to the water supply port 106 .

[0156] According to various embodiments, the water supply valve 62 may be an electronic valve whose opening degree is adjusted, or an on-off valve whose opening degree is not adjusted.

[0157] According to an embodiment, water supplied by the water supply device 60 can flow into the detergent supply device 100 through the water supply port 106, a portion of the water in the space between the shell cover 105 and the shell guide 107 can be discharged to the detergent holding portion 113 through the water supply hole 108, and another portion of the water in the space between the shell cover 105 and the shell guide 107 can be discharged to the filter mounting portion 116 through the washing hole 109.

[0158] The pump device 70 may include a circulation pump 71 and a drain pump 72. Water pumped by the circulation pump 71 of the pump device 70 may flow into the tub 20 via the detergent supply device 100.

[0159] Water pumped by the drain pump 72 of the pump device 70 of the washing machine 1 according to the embodiment may be discharged to the outside without passing through the detergent supply device 100 .

[0160] The pump device 70 can be driven by a drive signal from the controller 90 .

[0161] The controller 90 may include at least one memory 92 and at least one processor 91 for performing the above-mentioned operations and operations to be described below.

[0162] According to an embodiment, the controller 90 may include at least one memory 92 storing data in the form of algorithms and / or programs for controlling the operation of components in the washing machine 1 and at least one processor 91 that performs the above-mentioned operations and the operations to be described below by using the data stored in the at least one memory 92. The memory 92 and the processor 91 may be implemented with separate chips. The processor 91 may include one, two or more processor chips or one, two or more processing cores. The memory 92 may include one, two or more memory chips or one, two or more memory blocks. In addition, the memory 92 and the processor 91 may be implemented with a single chip.

[0163] The controller 90 may process a user input received through the input device 14 a and control various components of the washing machine 1 (eg, the driver 50 , the water supply device 60 , the display 14 b , and the pump device 70 ) based on the processing result of the user input.

[0164] The controller 90 may sequentially perform a washing operation, a rinsing operation, and a dehydrating operation according to a user input received through the input device 14a.

[0165] To supply water, the controller 90 may control the water supply device 60 to provide water supplied from an external power source to the tub 20 .

[0166] The controller 90 may open the water supply valve 62 to supply water. The controller 90 may close the water supply valve 62 based on satisfaction of the water supply termination condition.

[0167] According to the water supply valve 62 being implemented as an electronic valve whose opening degree is adjusted, the controller 90 may fully open the electronic valve to supply water.

[0168] Water supplied to the detergent supply device 100 through the water supply port 106 during water supply may flow into the water supply hole 108 and the washing hole 109 .

[0169] According to the present disclosure, since water flows into the washing hole 109 during water supply, the filter 120 may be washed.

[0170] The controller 90 may perform a circulation operation during a washing operation and / or a rinsing operation.

[0171] For the circulation operation, the controller 90 may drive the circulation pump 71 of the pump device 70. During the circulation operation, water pumped by the circulation pump 71 of the pump device 70 may flow into the tub 20 via the detergent supply device 100. According to the circulation operation in which water from which foreign matter has been removed flows into the tub 20, more efficient washing may be performed.

[0172] Meanwhile, in the washing machine 1 according to the embodiment, foreign materials may be collected in the filter 120 during the cycle operation.

[0173] The washing machine 1 according to the embodiment may drive the water supply device 60 for a predetermined time during the drainage operation.

[0174] For example, the controller 90 according to the embodiment may open the water supply valve 62 for a predetermined time during the drainage operation.

[0175] According to the water supply valve 62 being implemented as an electronic valve that adjusts its opening, the controller 90 may partially open the electronic valve for a predetermined time during the drainage operation. That is, the controller 90 may open the water supply valve 62 at a first opening during the water supply operation, and open the water supply valve 62 at a second opening during the drainage operation for a predetermined time, wherein the first opening may be greater than the second opening.

[0176] According to an embodiment, by opening the water supply valve 62 during the drainage operation, foreign matter collected on the filter side 122a during the circulation operation may be removed.

[0177] In addition, according to an embodiment, by partially opening the water supply valve 62 during the drainage operation, the amount of water flowing into the tub 20 may be reduced.

[0178] According to an embodiment, the washing machine 1 may receive a user input for cleaning the filter 120 .

[0179] The user input for cleaning the filter 120 may be received through the input device 14 a of the control panel 14 , or may be received from an external device (eg, a user terminal) through the communication module of the washing machine 1 .

[0180] The controller 90 of the washing machine 1 according to the embodiment may open the water supply valve 62 for a predetermined time based on receiving a user input for cleaning the filter 120. At this time, the water supply valve 62 may be partially opened.

[0181] According to the present disclosure, by performing the operation of cleaning the filter 120 according to the user's intention, user convenience may be improved.

[0182] Fig. 9 A cross section of a washing machine according to an embodiment is shown. Fig.10yes Fig. 9 An exploded view of the detergent supply unit is shown in . Fig.11 Show Fig. 9 Drawers shown in . Fig.12 exist Fig.10 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water filtered by passing through the filter. Fig.13 exist Fig.10 The flow of water for washing the filter is shown in the cross section of the detergent supply device shown in FIG.

[0183] Will refer to Figures 9 to 13 The washing machine 2 according to the embodiment is described. Figures 9 to 13 In the description of the washing machine 2 shown in Figures 1 to 9 The same components of the washing machine 1 shown in FIG. 1 are given the same reference numerals, and a detailed description thereof will be omitted.

[0184] Reference Figures 9 to 11 , the washing machine 2 may include a detergent supply device 200 configured to receive water through the water supply device 60. The detergent supply device 200 may be connected to the pump device 70 through a drainage guide 82. The detergent supply device 200 may be connected to an external guide 84 to discharge water stored in the detergent supply device 200 to the outside of the washing machine 2.

[0185] The detergent supply device 200 may include a drawer housing 200a configured with a housing body 201, a housing cover 105, and a housing guide 107. The housing body 201 may include a housing inlet 204a and a housing outlet 204b.

[0186] The housing inlet 204a may be connected to the drain guide 82. Water guided along the drain guide 82 may flow into the drawer housing 200a through the housing inlet 204a. The housing inlet 204a may be connected to the filter inlet 124. Water flowing into the drawer housing 200a through the housing inlet 204a may flow into the interior of the filter 120 through the filter inlet 124.

[0187] The housing outlet 204b may be connected to the external guide 84. Water in the drawer housing 200a may be discharged to the external guide 84 through the housing outlet 204b. The housing outlet 204b may communicate with the filter mounting portion 216. Water in the filter mounting portion 216 may be discharged to the outside of the drawer housing 200a through the housing outlet 204b.

[0188] The detergent supply device 200 may include a drawer 210 accommodated in the drawer housing 200a. The drawer 210 may include a drawer outlet 214 for discharging water and / or detergent in the detergent accommodation portion 113 to a space between the drawer body 211 and the housing body 201. Figure 4 The drawer outlet 114 shown in FIG. 1 may be in communication with the filter mounting portion 116, however Fig.10 The drawer outlet 214 shown in FIG. 2 may not be in communication with the filter mounting portion 216 . The drawer outlet 214 may be separate from the filter mounting portion 216 .

[0189] The drawer 210 may include a filter installation portion 216 formed to install the filter 120 therein. The filter installation portion 216 may be separated from the drawer outlet 214. The filter installation portion 216 may be formed to prevent water in the filter installation portion 216 from being discharged into a space between the drawer body 211 and the case body 201.

[0190] The filter mounting portion 216 may include a filter inlet receiving portion 216a receiving therein the filter inlet 124 of the filter 120. The filter inlet receiving portion 216a may be positioned to correspond to the housing inlet 204a.

[0191] The filter mounting portion 216 may include a drain port 216b connected to the housing outlet 204b. The drain port 216b may connect the filter mounting portion 216 to the housing outlet 204b. The water in the filter mounting portion 216 may be discharged to the outside of the drawer housing 200a via the drain port 216b through the housing outlet 204b without passing through the space between the drawer body 211 and the housing body 201.

[0192] Reference Fig. 9 and Fig.12 , the washing machine 2 according to various embodiments may filter foreign matter from the discharged water in the process of discharging the water in the tub 20 to the outside of the washing machine 2 .

[0193] The water discharged from the pump device 70 toward the tub 20 may be guided along the drainage guide 82. The water guided along the drainage guide 82 may flow into the detergent supply device 200 through the housing inlet 204a. The water flowing through the housing inlet 204a may flow into the inner space of the filter 120 through the filter inlet 124 connected to the housing inlet 204a. While the water flowing into the inner space of the filter 120 moves to the outside of the filter 120 through the filter portion 122, foreign matter may be filtered out of the water.

[0194] The filter part 122 may include a filter side 122a facing the inside of the filter 120. While water passing through the filter inlet 124 moves from the inside to the outside of the filter 120, foreign matter may be filtered out of the water, and the foreign matter filtered out by passing through the filter part 122 may be collected on the filter side 122a of the filter part 122.

[0195] The water having passed through the filter 120 and from which foreign matter has been filtered out may move to the space between the filter mounting portion 216 and the filter 120. The water moving to the space between the filter mounting portion 216 and the filter 120 may sequentially pass through the drainage port 216b and the housing outlet 204b, and then be discharged from the detergent supply device 200. The water discharged through the housing outlet 204b may be discharged to the outside of the washing machine 2 through the external guide 84.

[0196] According to this configuration, since the washing machine 2 according to various embodiments can filter foreign matter from water discharged from the tub 20 , the amount of foreign matter discharged from the washing machine 2 (particularly, the amount of foreign matter having a fine size) may be reduced.

[0197] Reference Fig. 9 and Fig.13 The washing machine 2 according to various embodiments may wash the filter 120 while supplying water to the detergent supply device 200 through the water supply device 60 .

[0198] Water supplied by the water supply device 60 may flow into the detergent supply device 200 through the water supply port 106. The water flowing into the detergent supply device 200 may be guided in a space between the housing cover 105 and the housing guide 107 by the guide ribs 107a.

[0199] A portion of the water in the space between the housing cover 105 and the housing guide 107 may be discharged to the detergent accommodating portion 113 through the water supply hole 108. The water discharged to the detergent supply device 200 may be discharged to the space between the drawer body 211 and the housing body 201 through the drawer outlet 214 together with the detergent in the detergent accommodating portion 113. The water discharged to the space between the drawer body 211 and the housing body 201 may be discharged through the tub port 103. The water discharged through the tub port 103 may be guided to the tub 20 through the tub guide 63.

[0200] Another part of the water in the space between the housing cover 105 and the housing guide 107 can be discharged to the filter mounting portion 216 through the washing hole 109. The water discharged to the filter mounting portion 216 can be discharged toward the filter 120. The water discharged through the washing hole 109 can be discharged toward the outside of the filter 120. The water discharged through the washing hole 109 can be discharged to the opposite side of the filter side 122a of the filter 120. Because water is supplied to the side of the filter 120 opposite to the filter side 122a where foreign matter is collected, the foreign matter collected on the filter side 122a can be separated from the filter side 122a. The foreign matter collected on the filter side 122a of the filter portion 122 (located at the upper side of the filter 120 facing the washing hole 109) can move to the lower part of the filter 120. At least a part of the foreign matter collected on the filter side 122a of the filter portion 122 (located at the front, rear, left or right side of the filter 120) can move to the lower part of the filter 120.

[0201] The water that washed the filter 120 may move to the space between the filter mounting portion 216 and the filter 120. The water moved to the space between the filter mounting portion 216 and the filter 120 may sequentially pass through the drainage port 216b and the housing outlet 204b, and then be discharged from the detergent supply device 200. The water discharged through the housing outlet 204b may be discharged to the outside of the washing machine 2 through the external guide 84.

[0202] According to this configuration, the washing machine 2 according to various embodiments may wash the filter 120 with water supplied through the water supply device 60 , thereby extending the life of the filter 120 and increasing a replacement cycle of the filter 120 .

[0203] Fig.14 is a control block diagram of a washing machine according to an embodiment.

[0204] Will refer to Fig.14 Components of the washing machine 2 according to the embodiment are described, and descriptions about the same components as those of the washing machine 1 according to the embodiment will be omitted.

[0205] The washing machine 2 according to the embodiment may include a control panel 14 for interacting with a user, a driver 50 for rotating the drum 30, a water supply device 60 for supplying water to the tub 20, a pump device 70 for discharging water contained in the tub 20 to the outside, and a controller 90 for controlling various components of the washing machine 1. The control panel 14 may include an input device 14a and a display 14b, and operates based on a control signal from the controller 90.

[0206] The controller 90 may open the water supply valve 62 to supply water. The controller 90 may close the water supply valve 62 based on satisfaction of the water supply termination condition.

[0207] According to the water supply valve 62 being implemented as an electronic valve whose opening degree is adjusted, the controller 90 may fully open the electronic valve to supply water.

[0208] Water supplied to the detergent supply device 200 through the water supply port 106 during water supply may flow into the water supply hole 108 and the washing hole 109 .

[0209] According to the present disclosure, since water flows into the washing hole 109 during water supply, the filter 120 may be washed.

[0210] For drainage, the controller 90 may drive the drainage pump 72 of the pump device 70. During drainage, water pumped by the drainage pump 72 of the pump device 70 according to the embodiment may be discharged to the outside via the detergent supply device 200. According to the drainage operation in which the water from which foreign matter has been removed is discharged to the outside of the tub 20, environmental pollution may be further prevented.

[0211] In the washing machine 2 according to the embodiment, since water flows into the filter 120 during the drainage operation, foreign substances may flow to the filter side 122a.

[0212] When the water level of the tub 20 is high, a large amount of water may flow into the filter 120, and therefore, even if the water supply valve 62 is opened, it may be difficult to effectively remove foreign matter collected on the filter side 122a.

[0213] However, when the water level of the tub 20 is low, a small amount of water may flow into the filter 120, and the water may not reach the filter side 122a. Therefore, by opening the water supply valve 62, foreign matter collected on the filter side 122a can be effectively removed.

[0214] The controller 90 according to the embodiment may wash the filter side 122 a by opening the water supply valve 62 during the drainage operation in a state in which the amount of water flowing into the filter 120 of the tub 20 is small.

[0215] According to an embodiment, based on the water level of the tub 20 being lower than a predetermined water level (eg, a reset water level) during the drain operation, the controller 90 may open the water supply valve 62 for a predetermined time. To this end, the washing machine 2 may further include a water level sensor (not shown).

[0216] As another example, based on the load of the pump device 70 being less than a predetermined value during the drainage operation, the controller 90 may open the water supply valve 62 for a predetermined time.

[0217] As another example, the controller 90 may open the water supply valve 62 for a predetermined time based on the elapse of a predefined time from the start time of the drainage operation.

[0218] According to the present disclosure, foreign matter collected on the filtering side 122a may be effectively removed during the drainage operation.

[0219] According to an embodiment, the washing machine 2 may receive a user input for cleaning the filter 120 .

[0220] The user input for cleaning the filter 120 may be received through the input device 14 a of the control panel 14 , or may be received from an external device (eg, a user terminal) through the communication module of the washing machine 2 .

[0221] The controller 90 of the washing machine 2 according to the embodiment may open the water supply valve 62 for a predetermined time based on the reception of the user input for cleaning the filter 120. At this time, the water supply valve 62 may be partially opened.

[0222] According to an embodiment, by performing the operation of cleaning the filter 120 according to the user's intention, user convenience may be improved.

[0223] Fig.15 A cross section of a washing machine according to an embodiment is shown. Fig.16 yes Fig.15 An exploded view of the detergent supply unit is shown in . Fig.17 Show Fig.14 Drawers shown in . Fig.18 Shown in Fig.17 The drawer shown in FIG. 1 is in a state where the recycle door is closed and the recycle door is opened. Fig.19 exist Fig.16 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water flowing into the pump device and then discharged into the tub. Fig. 20 exist Fig.16 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water that washes the filter and then is discharged into the tub. Fig.21 exist Fig.16 The flow of water supplied from the pump device and then discharged to the outside of the washing machine is shown in the cross-section of the detergent supply device shown in FIG. Fig. 22 exist Fig.16 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water that washes the filter and then is discharged to the outside of the washing machine.

[0224] Will refer to Figures 15 to 22 The washing machine 3 according to the embodiment is described. Figures 15 to 22 In the description of the washing machine 3 shown in Figures 9 to 13 The same components of the illustrated washing machine 2 are given the same reference numerals, and a detailed description thereof will be omitted.

[0225] Reference Figures 15 to 18, the washing machine 3 may include a detergent supply device 300 configured to receive water through the water supply device 60. The detergent supply device 300 may be connected to the pump device 70 through the drainage guide 82 and the circulation guide 83. The detergent supply device 300 may be connected to the tub guide 63 to discharge the water in the detergent supply device 300 to the tub 20. The detergent supply device 300 may be connected to the external guide 84 and discharge the water in the detergent supply device 300 to the outside of the washing machine 3.

[0226] The detergent supply device 300 may include a drawer housing 300a configured with a housing body 301, a housing cover 105, and a housing guide 107. The housing body 301 may include a housing inlet 304a and a housing outlet 304b. The housing inlet 304a may include a circulation housing inlet 304aa and a drainage housing inlet 304ab.

[0227] The circulation housing inlet 304aa may be connected to the circulation guide 83. Water guided along the circulation guide 83 may flow into the drawer housing 300a through the circulation housing inlet 304aa.

[0228] The drain housing inlet 304ab may be connected to the drain guide 82. Water guided along the drain guide 82 may flow into the drawer housing 300a through the drain housing inlet 304ab.

[0229] The housing inlet 304a may be connected to the filter inlet 124. Water flowing into the drawer housing 300a through the housing inlet 304a may flow into the filter 120 through the filter inlet 124.

[0230] The housing outlet 304b may be connected to the external guide 84. Water in the drawer housing 300a may be discharged to the external guide 84 through the housing outlet 304b. The housing outlet 304b may communicate with the filter mounting portion 316. Water in the filter mounting portion 216 may be discharged to the outside of the drawer housing 300a through the housing outlet 340b.

[0231] The detergent supply device 300 may include a drawer 310 accommodated in the drawer housing 300a. The drawer 310 may include a drawer outlet 314 for discharging water and / or detergent in the detergent accommodation portion 113 to a space between the drawer body 311 and the housing body 301. Fig.16 The drawer outlet 314 shown in FIG. 3 can selectively communicate with the filter mounting portion 316 .

[0232] The drawer 310 may include a filter installation portion 316 formed to install the filter 120 therein. The filter installation portion 316 may be selectively separated from the drawer outlet 314. The filter installation portion 316 may be formed to selectively discharge water in the filter installation portion 316 into a space between the drawer body 311 and the case body 301.

[0233] The filter mounting portion 316 may include a filter inlet receiving portion 316a receiving therein the filter inlet 124 of the filter 120. The filter inlet receiving portion 316a may be positioned to correspond to the housing inlet 304a.

[0234] The filter mounting portion 316 may include a drain port 316b connected to the housing outlet 304b. The drain port 316b may connect the filter mounting portion 316 to the housing outlet 304b. The water in the filter mounting portion 316 may be discharged to the outside of the drawer housing 300a via the drain port 316b through the housing outlet 304b without passing through the space between the drawer body 311 and the housing body 301.

[0235] Reference Fig.17 and Fig.18 The drawer body 311 may include a drawer hole 311a for communicating the filter mounting portion 316 with a space between the drawer body 311 and the housing body 301. The drawer hole 311a may be opened or closed by the hole opening / closing device 320.

[0236] The detergent supply device 300 may include a hole opening / closing device 320 for opening or closing the drawer hole 311a. The hole opening / closing device 320 may include a hole door 321 and a door driver 322 for operating the hole door 321. According to the hole opening / closing device 320 opening / closing the drawer hole 311a, the filter mounting portion 316 may be selectively communicated with the space between the drawer body 311 and the housing body 301.

[0237] Reference Fig.15 and Fig.19 The washing machine 3 according to various embodiments can filter foreign matter from the circulating water while circulating the water in the tub 20. When the water in the tub 20 circulates, the hole opening / closing device 320 can open the drawer hole 311a.

[0238] The water discharged from the pump device 70 toward the tub 20 may be guided along the circulation guide 83. The water guided along the circulation guide 83 may flow into the detergent supply device 300 through the circulation housing inlet 304aa of the housing inlet 304a. The water flowing through the circulation housing inlet 304aa of the housing inlet 304a may flow into the inner space of the filter 120 through the filter inlet 124 connected to the housing inlet 304a. While the water flowing into the inner space of the filter 120 moves to the outside of the filter 120 through the filter portion 122, foreign matter may be filtered out of the water.

[0239] The filter portion 122 may include a filter side 122a facing the inside of the filter 120. While the water flowing through the filter inlet 124 moves from the inside to the outside of the filter 120, foreign matter may be filtered out of the water, and the foreign matter filtered out by passing through the filter portion 122 may be collected on the filter side 122a of the filter portion 122.

[0240] The water that has passed through the filter 120 and from which foreign matter has been filtered out can move from the filter mounting portion 316 to the space between the drawer body 311 and the housing body 301 through the drawer hole 311a. The water discharged to the space between the drawer body 311 and the housing body 301 can be discharged through the barrel port 103. The water discharged through the barrel port 103 can be guided to the barrel 20 through the barrel guide 63.

[0241] According to this configuration, since the washing machine 3 according to various embodiments filters foreign matter from water circulating through the tub 20 , the amount of foreign matter discharged from the washing machine 3 (particularly, the amount of foreign matter having a fine size) may be reduced.

[0242] Reference Fig.15 and Fig. 20 The washing machine 3 according to various embodiments may wash the filter 120 while supplying water to the detergent supply device 300 through the water supply device 60, and discharge the water washing the filter 120 to the tub 20. The hole opening / closing device 320 may open the drawer hole 311a.

[0243] Water supplied by the water supply device 60 may flow into the detergent supply device 300 through the water supply port 106. The water flowing into the detergent supply device 300 may be guided in a space between the housing cover 105 and the housing guide 107 by the guide ribs 107a.

[0244] A portion of the water in the space between the housing cover 105 and the housing guide 107 may be discharged to the detergent holding portion 113 through the water supply hole 108. The water discharged to the detergent holding portion 113 may be discharged to the space between the drawer body 311 and the housing body 301 through the drawer outlet 314 together with the detergent in the detergent holding portion 113. The water discharged to the space between the drawer body 311 and the housing body 301 may be discharged through the tub port 103. The water discharged through the tub port 103 may be guided to the tub 20 through the tub guide 63.

[0245] Another part of the water in the space between the housing cover 105 and the housing guide 107 can be discharged to the filter mounting portion 316 through the washing hole 109. The water discharged to the filter mounting portion 316 can be discharged toward the filter 120. The water discharged through the washing hole 109 can be discharged toward the outside of the filter 120. The water discharged through the washing hole 109 can be discharged to the opposite side of the filter side 122a of the filter 120. Because water is supplied to the side of the filter 120 opposite to the filter side 122a where foreign matter is collected, the foreign matter collected on the filter side 122a can be separated from the filter side 122a. The foreign matter collected on the filter side 122a of the filter portion 122 (located at the upper side of the filter 120 facing the washing hole 109) can move to the lower part of the filter 120. At least a part of the foreign matter collected on the filter side 122a of the filter portion 122 (located at the front, rear, left or right side of the filter 120) can move to the lower part of the filter 120.

[0246] The water washing the filter 120 may move from the filter mounting portion 316 to the space between the drawer body 311 and the housing body 301 through the drawer hole 311a. The water discharged to the space between the drawer body 311 and the housing body 301 may be discharged through the tub port 103. The water discharged through the tub port 103 may be guided to the tub 20 through the tub guide 63.

[0247] According to this configuration, the washing machine 3 according to various embodiments may wash the filter 120 with water supplied through the water supply device 60 , thereby extending the life of the filter 120 and increasing a replacement cycle of the filter 120 .

[0248] Reference Fig.15 and Fig.21 , while the water in the tub 20 is discharged to the outside of the washing machine 3, the washing machine 3 according to various embodiments can filter foreign matter from the discharged water. When the water in the tub 20 is discharged to the outside of the washing machine 3, the hole opening / closing device 320 can close the drawer hole 311a.

[0249] The water discharged from the pump device 70 toward the tub 20 may be guided along the drainage guide 82. The water guided along the drainage guide 82 may flow into the detergent supply device 300 through the drainage housing inlet 304ab of the housing inlet 304a. The water flowing through the drainage housing inlet 304ab of the housing inlet 304a may flow into the inner space of the filter 120 through the filter inlet 124 connected to the housing inlet 304a. While the water flowing into the inner space of the filter 120 moves to the outside of the filter 120 through the filter portion 122, foreign matter may be filtered out of the water.

[0250] The filter portion 122 may include a filter side 122a facing the inside of the filter 120. While the water flowing through the filter inlet 124 moves from the inside to the outside of the filter 120, foreign matter may be filtered out of the water, and the foreign matter filtered out by passing through the filter portion 122 may be collected on the filter side 122a of the filter portion 122.

[0251] The water that has passed through the filter 120 and from which foreign matter has been filtered out may be discharged into the space between the filter mounting portion 316 and the filter 120. The water that has moved to the space between the filter mounting portion 316 and the filter 120 may sequentially pass through the drainage port 316b and the housing outlet 304b, and then be discharged from the detergent supply device 300. The water discharged through the housing outlet 304b may be discharged to the outside of the washing machine 3 through the external guide 84.

[0252] According to this configuration, since the washing machine 3 according to various embodiments filters foreign matter from water discharged from the tub 20 , the amount of foreign matter discharged from the washing machine 3 (particularly, the amount of foreign matter having a fine size) may be reduced.

[0253] Reference Fig.15 and Fig. 22 The washing machine 3 according to various embodiments may wash the filter 120 while supplying water to the detergent supply device 300 through the water supply device 60, and discharge the water washing the filter 120 to the outside of the washing machine 3. The hole opening / closing device 320 may close the drawer hole 311a.

[0254] Water supplied by the water supply device 60 may flow into the detergent supply device 300 through the water supply port 106. The water flowing into the detergent supply device 300 may be guided in a space between the housing cover 105 and the housing guide 107 by the guide ribs 107a.

[0255] A portion of the water in the space between the housing cover 105 and the housing guide 107 may be discharged to the detergent holding portion 113 through the water supply hole 108. The water discharged to the detergent holding portion 113 may be discharged to the space between the drawer body 311 and the housing body 301 through the drawer outlet 314 together with the detergent in the detergent holding portion 113. The water discharged to the space between the drawer body 311 and the housing body 301 may be discharged through the tub port 103. The water discharged through the tub port 103 may be guided to the tub 20 through the tub guide 63.

[0256] Another part of the water in the space between the housing cover 105 and the housing guide 107 can be discharged to the filter mounting portion 316 through the washing hole 109. The water discharged to the filter mounting portion 316 can be discharged toward the filter 120. The water discharged through the washing hole 109 can be discharged toward the outside of the filter 120. The water discharged through the washing hole 109 can be discharged to the opposite side of the filter side 122a of the filter 120. Because water is supplied to the side of the filter 120 opposite to the filter side 122a where foreign matter is collected, the foreign matter collected on the filter side 122a can be separated from the filter side 122a. The foreign matter collected on the filter side 122a of the filter part 122 (located at the upper side of the filter 120 facing the washing hole 109) can move to the lower part of the filter 120. At least a part of the foreign matter collected on the filter side 122a of the filter part 122 (located at the front, rear, left or right side of the filter 120) can move to the lower part of the filter 120.

[0257] The water that washed the filter 120 may move to the space between the filter mounting portion 316 and the filter 120. The water moved to the space between the filter mounting portion 316 and the filter 120 may sequentially pass through the drainage port 316b and the housing outlet 304b, and then be discharged from the detergent supply device 300. The water discharged through the housing outlet 304b may be discharged to the outside of the washing machine 3 through the external guide 84.

[0258] According to this configuration, the washing machine 3 according to various embodiments may wash the filter 120 with water supplied through the water supply device 60 , thereby extending the life of the filter 120 and increasing a replacement cycle of the filter 120 .

[0259] Fig.23 is a control block diagram of a washing machine according to an embodiment.

[0260] Will refer to Fig.23 Components of the washing machine 3 according to the embodiment are described, and descriptions about the same components as those of the washing machine 1 or 2 according to the embodiment will be omitted.

[0261] Reference Fig.23The washing machine 3 according to the embodiment may include a control panel 14 for interacting with a user, a driver 50 for rotating the drum 30, a water supply device 60 for supplying water to the tub 20, a pump device 70 for discharging water contained in the tub 20 to the outside, and a controller 90 for controlling various components of the washing machine 1. The control panel 14 may include an input device 14a and a display 14b, and operates based on a control signal from the controller 90.

[0262] The washing machine 3 according to the embodiment may further include a hole opening / closing device 320 .

[0263] The hole opening / closing device 320 may include a hole door 321 and a door driver 322 for operating the hole door 321. According to the hole opening / closing device 320 opening / closing the drawer hole 311a, the filter installation part 316 may selectively communicate with the space between the drawer body 311 and the case body 301.

[0264] The controller 90 may process user input received through the input device 14a and control various components of the washing machine 3 (eg, the driver 50, the water supply device 60, the display 14b, the pump device 70 and / or the hole opening / closing device 320) based on the processing result of the user input.

[0265] For the circulation operation, the controller 90 may drive the circulation pump 71 of the pump device 70. During the circulation operation, water pumped by the circulation pump 71 of the pump device 70 of the washing machine 3 according to the embodiment may flow into the tub 20 via the detergent supply device 300. According to the circulation operation in which water from which foreign matter has been removed flows into the tub 20, more efficient washing may be performed.

[0266] In order to drain water, the controller 90 may drive the drain pump 72 of the pump device 70. During drainage, water pumped by the drain pump 72 of the pump device 70 of the washing machine 3 according to the embodiment may be discharged to the outside via the detergent supply device 300. According to the drainage operation in which the water from which foreign matter has been removed is discharged to the outside of the tub 20, environmental pollution may be further prevented.

[0267] In the washing machine 3 according to the embodiment, foreign matter may be collected in the filter 120 during the drainage operation and the circulation operation.

[0268] The washing machine 3 according to the embodiment may drive the water supply device 60 for a predetermined time during the drainage operation.

[0269] For example, the controller 90 according to the embodiment may open the water supply valve 62 for a predetermined time during the drainage operation.

[0270] According to the water supply valve 62 being implemented as an electronic valve that adjusts its opening, the controller 90 may partially open the electronic valve for a predetermined time during the drainage operation. That is, the controller 90 may open the water supply valve 62 at a first opening during the water supply operation, and open the water supply valve 62 at a second opening during the drainage operation for a predetermined time, wherein the first opening may be greater than the second opening.

[0271] According to the present disclosure, by opening the water supply valve 62 during the drainage operation, foreign matter collected on the filter side 122 a during the circulation operation may be removed.

[0272] Furthermore, according to the present disclosure, by partially opening the water supply valve 62 during the drainage operation, the amount of water flowing into the tub 20 may be reduced.

[0273] When the water level of the tub 20 is high, a large amount of water may flow into the filter 120, and therefore, even if the water supply valve 62 is opened, it may be difficult to effectively remove foreign matter collected on the filter side 122a.

[0274] However, when the water level of the tub 20 is low, a small amount of water may flow into the filter 120, and the water may not reach the filter side 122a. Therefore, by opening the water supply valve 62, foreign matter collected on the filter side 122a can be effectively removed.

[0275] The controller 90 may wash the filter side 122 a by opening the water supply valve 62 during the drainage operation in a state in which the amount of water flowing into the filter 120 of the tub 20 is small.

[0276] According to an embodiment, based on the water level of the tub 20 being lower than a predetermined water level (eg, a reset water level) during the drain operation, the controller 90 may open the water supply valve 62 for a predetermined time. To this end, the washing machine 3 may further include a water level sensor (not shown).

[0277] As another example, based on the load of the pump device 70 being less than a predetermined value during the drainage operation, the controller 90 may open the water supply valve 62 for a predetermined time.

[0278] As another example, the controller 90 may open the water supply valve 62 for a predetermined time based on the elapse of a predefined time from the start time of the drainage operation.

[0279] According to an embodiment, foreign matter collected on the filter side 122a may be effectively removed during a drainage operation.

[0280] The washing machine 3 according to the embodiment may open the drawer hole 311 a ( 3200 ) during the cycle operation.

[0281] That is, the controller 90 of the washing machine 3 according to the embodiment may control the hole opening / closing device 320 to open the drawer hole 311 a during the cycle operation.

[0282] The aperture opening / closing device 320 may open the aperture door 321 based on a control signal from the controller 90 during a cycle operation.

[0283] Therefore, during the circulation operation, water passing through the filter 120 may flow into the tub 20 again through the drawer hole 311 a .

[0284] According to the present disclosure, during the circulation operation, water having passed through the filter 12 may be guided to flow into the tub 20 again.

[0285] Furthermore, according to the present disclosure, since the hole door 321 is located at the opposite side to the side toward which water flows, most of the water flowing into the inner space of the filter 120 by the pump device 70 may circulate to the tub 20 through the drawer hole 311 a by pressure.

[0286] Meanwhile, the washing machine 3 according to various embodiments may further include a drain valve (not shown) for opening / closing the housing outlet 304 b or opening / closing the external guide 84 .

[0287] In the case where the washing machine 3 further includes a drain valve (not shown) for opening / closing the housing outlet 304 b or opening / closing the outer guide 84 , the controller 90 may close the drain valve during the cycle operation.

[0288] According to the present disclosure, the amount of water discharged to the outside of the washing machine 3 during the cycle operation can be reduced.

[0289] The washing machine 3 according to the embodiment may close the drawer hole 311 a during the drainage operation.

[0290] That is, the controller 90 of the washing machine 3 according to the embodiment may control the hole opening / closing device 320 to close the drawer hole 311 a during the drainage operation.

[0291] The hole opening / closing device 320 may close the hole door 321 based on a control signal from the controller 90 during the drainage operation.

[0292] Therefore, water passing through the filter 120 during the drainage operation may be discharged to the outside through the housing outlet 304 b.

[0293] According to the present disclosure, during the drainage operation, water passing through the filter 120 may be guided to be discharged to the outside of the washing machine 3 .

[0294] According to an embodiment, the washing machine 3 may receive a user input for cleaning the filter 120 .

[0295] The user input for cleaning the filter 120 may be received through the input device 14 a of the control panel 14 , or may be received from an external device (eg, a user terminal) through the communication module of the washing machine 2 .

[0296] The controller 90 may open the water supply valve 62 for a predetermined time based on the reception of the user input for cleaning the filter 120. At this time, the water supply valve 62 may be partially opened. Fig.24 A cross section of a washing machine according to an embodiment is shown. Fig.25 yes Fig.24 An exploded view of the detergent supply unit is shown in . Fig.26 exist Fig.25 The flow of water supplied to the detergent containing portion is shown in the cross-section of the detergent supply device shown in FIG. Fig. 27 exist Fig.25 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water filtered by passing through the filter. Fig.28 exist Fig.25 The flow of water for washing the filter is shown in the cross section of the detergent supply device shown in FIG.

[0297] Will refer to Figures 24 to 28 A washing machine 4 according to an embodiment is described. Figures 24 to 28 In the description of the washing machine 4 shown in Figures 1 to 7 The same components of the washing machine 1 shown in FIG. 1 are given the same reference numerals, and a detailed description thereof will be omitted.

[0298] Reference Fig.24 and Fig.28 The washing machine 4 may include a detergent supply device 400 configured to receive water through the water supply device 60a. The detergent supply device 400 may be connected to the pump device 70 through the circulation guide 83. The detergent supply device 400 may be connected to the tub guide 63 to discharge water of the detergent supply device 400 to the tub 20.

[0299] The detergent supply device 400 may include a drawer housing 400a configured with a housing body 101, a housing cover 405, and a housing guide 407. The housing body 101 may have Figure 4 The detergent supply device 400 may include a housing body 101 having the same configuration as the detergent supply device 100 shown in FIG. Figure 4 The drawer 110 and the filter 120 of the detergent supply device 100 shown in FIG. 1 are configured the same as the drawer 110 and the filter 120 .

[0300] The housing cover 405 may include a first water supply port 406a and a second water supply port 406b. The first water supply port 406a may be formed so that water supplied to the detergent containing portion 113 flows into the drawer housing 400a through it. A plurality of first water supply ports 406a for hot water and cold water may be provided. The second water supply port 406b may be formed so that water supplied to the filter 120 flows into the drawer housing 400a through it.

[0301] The washing machine 4 may include a first water supply guide 61a connected to the first water supply port 406a. A first water supply valve 62a may be provided in the first water supply guide 61a. The first water supply valve 62a may allow or block supply of water through the first water supply guide 61a.

[0302] The washing machine 4 may include a second water supply guide 61b connected to the second water supply port 406b. A second water supply valve 62b may be provided in the second water supply guide 61b. The second water supply valve 62b may allow or block the supply of water through the second water supply guide 61b.

[0303] The housing guide 407 may include a water supply hole 108 communicating with the detergent receiving portion 113 and a washing hole 109 communicating with the filter mounting portion 116. The housing guide 407 may include a partition 407b for separating a first flow path P1 along which water supplied to the detergent receiving portion 113 through the water supply hole 108 flows from a second flow path P2 along which water supplied to the filter mounting portion through the washing hole 109 flows. The partition 407b may prevent water supplied through the first water supply port 406a from being supplied to the filter mounting portion 116 through the washing hole 109. The partition 407b may prevent water supplied through the second water supply port 406b from being supplied to the detergent receiving portion 113 through the water supply hole 108.

[0304] Reference Fig.24 and Fig.26 , the washing machine 4 according to various embodiments may not supply water to the filter 120 while supplying water to the detergent containing portion 113. To this end, the first water supply valve 62a may allow the supply of water to the detergent supply device 400 through the first water supply guide 61a, and the second water supply valve 62b may block the supply of water to the detergent supply device 400 through the second water supply guide 61b.

[0305] The water supplied through the first water supply guide 61a may flow into the detergent supply device 400 through the first water supply port 406a. The water flowing into the space between the housing cover 405 and the housing guide 407 may be guided to the water supply hole 108 along the first flow path P1, and then discharged to the detergent holding portion 113. The water discharged to the detergent holding portion 113 may be discharged to the space between the drawer body 111 and the housing body 101 through the drawer outlet 114 together with the detergent in the detergent holding portion 113. The water discharged to the space between the drawer body 111 and the housing body 101 may be discharged through the barrel port 103. The water discharged through the barrel port 103 may be guided to the barrel 20 through the barrel guide 63.

[0306] Reference Fig.24 and Fig. 27 , the washing machine 4 according to various embodiments may filter foreign matter from the circulating water while circulating the water in the tub 20 .

[0307] The water discharged from the pump device 70 toward the tub 20 may be guided along the circulation guide 83. The water guided along the circulation guide 83 may flow into the detergent supply device 400 through the housing inlet 104. The water flowing through the housing inlet 104 may flow into the inner space of the filter 120 through the filter inlet 124 connected to the housing inlet 104. While the water flowing into the inner space of the filter 120 moves to the outside of the filter 120 through the filter portion 122, foreign matter may be filtered out of the water.

[0308] The filter portion 122 may include a filter side 122a facing the inside of the filter 120. While the water flowing through the filter inlet 124 moves from the inside to the outside of the filter 120, foreign matter may be filtered out of the water, and the foreign matter filtered out by passing through the filter portion 122 may be collected on the filter side 122a of the filter portion 122.

[0309] The water that has passed through the filter 120 and from which foreign matter has been filtered out can be discharged from the filter mounting portion 116 to the space between the drawer body 111 and the housing body 101 through the drawer outlet 114. The water discharged to the space between the drawer body 111 and the housing body 101 can be discharged through the tub port 103. The water discharged through the tub port 103 can be guided to the tub 20 through the tub guide 63.

[0310] According to this configuration, since the washing machine 4 according to various embodiments filters foreign matter from water circulating through the tub 20 , the amount of foreign matter discharged from the washing machine 4 (particularly, the amount of foreign matter having a fine size) may be reduced.

[0311] Reference Fig.24 and Fig.28, the washing machine 4 according to various embodiments may not supply water to the detergent containing portion 113 while supplying water to the filter 120. To this end, the first water supply valve 62a may block the supply of water to the detergent supply device 400 through the first water supply guide 61a, and the second water supply valve 62b may allow the supply of water to the detergent supply device 400 through the second water supply guide 61b.

[0312] The water supplied through the second water supply guide 61b can flow into the detergent supply device 400 through the second water supply port 406b. The water flowing into the space between the housing cover 405 and the housing guide 407 can be guided to the washing hole 109 along the second flow path P2, and then discharged to the filter mounting portion 116. The water discharged to the filter mounting portion 116 can be discharged toward the filter 120. The water discharged through the washing hole 109 can be discharged toward the outside of the filter 120. The water discharged through the washing hole 109 can be discharged to the opposite side of the filter side 122a of the filter 120. Because water is supplied to the side of the filter 120 opposite to the filter surface 122 where foreign matter is collected, the foreign matter collected on the filter side 122a can be separated from the filter side 122a. The foreign matter collected on the filter side 122a of the filter portion 122 (located at the upper side of the filter 120 facing the washing hole 109) can move to the lower part of the filter 120. At least a portion of foreign matter collected on the filter side 122 a of the filter portion 122 (located at the front, rear, left, or right side of the filter 120 ) may move to a lower portion of the filter 120 .

[0313] The water washing the filter 120 may move from the filter mounting portion 116 to the space between the drawer body 111 and the housing body 101 through the drawer outlet 114. The water moved to the space between the drawer body 111 and the housing body 101 may be discharged through the tub port 103. The water discharged through the tub port 103 may be discharged to the tub 20 through the tub guide 63.

[0314] According to this configuration, the washing machine 4 according to various embodiments can wash the filter 120 with water supplied through the water supply device 60a, thereby extending the life of the filter 120 and increasing the replacement cycle of the filter 120. Since the washing machine 4 according to various embodiments does not supply water to the detergent receiving portion 113 while supplying water to the detergent supply device 400 to wash the filter 120, the washing machine 4 can reduce water consumption.

[0315] Fig.29 is a control block diagram of a washing machine according to an embodiment.

[0316] Will refer to Fig.29Components of the washing machine 4 according to the embodiment are described, and descriptions about the same components as those of the washing machine 1, 2, or 3 according to the embodiment will be omitted.

[0317] Reference Fig.23 The washing machine 4 according to the embodiment may include a control panel 14 for interacting with a user, a driver 50 for rotating the drum 30, a water supply device 60 for supplying water to the tub 20, a pump device 70 for discharging water contained in the tub 20 to the outside, and a controller 90 for controlling various components of the washing machine 1. The control panel 14 may include an input device 14a and a display 14b, and operates based on a control signal from the controller 90.

[0318] The water supply device 60 may provide water supplied from an external water source to the inside of the tub 20 based on a control signal from the controller 90 .

[0319] The water supply device 60 according to the embodiment may include a first water supply valve 62a provided in the first water supply guide 61a to supply water to the first water supply port 406a and a second water supply valve 62b provided in the second water supply guide 61b to supply water to the second water supply port 406b.

[0320] According to various embodiments, the first water supply valve 62a and the second water supply valve 62b may be switching valves.

[0321] Water supplied through the first water supply guide 61 a may flow into the detergent supply device 400 through the first water supply port 406 a and be guided to the water supply hole 108 .

[0322] Water supplied through the second water supply guide 61 b ​​may flow into the detergent supply device 400 through the second water supply port 406 b and be guided to the washing hole 109 .

[0323] The pump device 70 may include a circulation pump 71 and a drain pump 72. Water pumped by the circulation pump 71 of the pump device 70 of the washing machine 4 according to the embodiment may flow into the tub 20 via the detergent supply device 400.

[0324] Water pumped by the drain pump 72 of the pump device 70 of the washing machine 4 according to the embodiment may be discharged to the outside without passing through the detergent supply device 400 .

[0325] The controller 90 of the washing machine 4 according to the embodiment may open the first water supply valve 62a to supply water. The controller 90 of the washing machine 4 according to the embodiment may close the first water supply valve 62a based on satisfaction of the water supply termination condition.

[0326] Water supplied to the detergent supply device 400 through the first water supply port 406 a during water supply may flow into the water supply hole 108 .

[0327] For the circulation operation, the controller 90 may drive the circulation pump 71 of the pump device 70. During the circulation operation, water pumped by the circulation pump 71 of the pump device 70 according to the embodiment may flow into the tub 20 via the detergent supply device 100. According to the circulation operation in which water from which foreign matter has been removed flows into the tub 20, more efficient washing may be performed.

[0328] Meanwhile, in the washing machine 4 according to the embodiment, foreign substances may be collected in the filter 120 during the cycle operation.

[0329] The washing machine 4 according to the embodiment may drive the water supply device 60 for a predetermined time during the drainage operation.

[0330] According to various embodiments, the controller 90 may open the second water supply valve 62b for a predetermined time during water supply. The duration that the first water supply valve 62a is opened during water supply may be shorter than the duration that the second water supply valve 62b is opened.

[0331] According to an embodiment, by opening the second water supply valve 62b during the drainage operation, foreign substances collected on the filter side 122a during the circulation operation may be removed.

[0332] According to the present disclosure, by pushing foreign materials collected on the filtering side 122a to the other side during the cycle operation, an effect of extending the life of the filter 120 can be expected.

[0333] According to an embodiment, the washing machine 4 may receive a user input for cleaning the filter 120 .

[0334] The user input for cleaning the filter 120 may be received through the input device 14 a of the control panel 14 , or from an external device (eg, a user terminal) through the communication module of the washing machine 4 .

[0335] The controller 90 may open the second water supply valve 62 b for a predetermined time based on the receipt of a user input for cleaning the filter 120 .

[0336] According to the present disclosure, by performing the operation of cleaning the filter 120 according to the user's intention, user convenience may be improved.

[0337] Fig.30 A cross section of a washing machine according to an embodiment is shown. Fig.31 yes Fig.30 An exploded view of the detergent supply unit is shown in . Fig.32 exist Fig.30The flow of water supplied to the detergent containing portion is shown in the cross-section of the detergent supply device shown in FIG. Fig.33 exist Fig.30 The cross-section of the detergent supply device shown in FIG. 1 shows the flow of water filtered by passing through the filter. Fig.34 exist Fig.30 The flow of water for washing the filter is shown in the cross section of the detergent supply device shown in FIG.

[0338] Will refer to Figure 30 to Figure 34 A washing machine 5 according to an embodiment is described. Figure 30 to Figure 34 In the description of the washing machine 5 shown in Figures 9 to 13 The washing machine 2 shown in Figures 24 to 28 The same components of the washing machine 4 shown in FIG. 1 are given the same reference numerals, and a detailed description thereof may be omitted.

[0339] Reference Fig.30 and Fig.31 The washing machine 5 may include a detergent supply device 50 configured to receive water through the water supply device 60a. The detergent supply device 500 may be connected to the pump device 70 through the drainage guide 82. The detergent supply device 500 may be connected to the external guide 84 to discharge the water in the detergent supply device 500 to the outside of the washing machine 5.

[0340] The detergent supply device 500 may include a drawer housing 500a configured with a housing body 201, a housing cover 405, and a housing guide 407. Fig.10 The detergent supply device 500 may include a housing body 201 having the same configuration as the housing body 201 of the detergent supply device 200 shown in FIG. Fig.10 The detergent supply device 500 may include a drawer 210 and a filter 120 having the same configuration as the drawer 210 and the filter 120 of the detergent supply device 200 shown in FIG. Fig.25 The housing cover 405 and the housing guide 407 are configured identically to the housing cover 405 and the housing guide 407 shown in FIG.

[0341] Reference Fig.30 and Fig.32 , the washing machine 5 according to various embodiments may not supply water to the filter 120 while supplying water to the detergent holding portion 113. To this end, the first water supply valve 62a may allow the supply of water to the detergent supply device 500 through the first water supply guide 61a, and the second water supply valve 62b may block the supply of water to the detergent supply device 500 through the second water supply guide 61b.

[0342] The water supplied through the first water supply guide 61a may flow into the detergent supply device 500 through the first water supply port 406a. The water flowing into the space between the housing cover 405 and the housing guide 407 may be guided to the water supply hole 108 along the first flow path P1, and then discharged to the detergent holding portion 113. The water discharged to the detergent holding portion 113 may be discharged into the space between the drawer body 211 and the housing body 201 through the drawer outlet 214 together with the detergent in the detergent holding portion 113. The water discharged to the space between the drawer body 211 and the housing body 201 may be discharged through the barrel port 103. The water discharged through the barrel port 103 may be guided to the barrel 20 through the barrel guide 63.

[0343] Reference Fig.30 and Fig.33 , the washing machine 5 according to various embodiments may filter foreign matter from the discharged water while discharging the water in the tub 20 to the outside of the washing machine 5 .

[0344] The water discharged from the pump device 70 toward the tub 20 may be guided along the drainage guide 82. The water guided along the drainage guide 82 may flow into the detergent supply device 500 through the housing inlet 204a. The water flowing through the housing inlet 204a may flow into the inner space of the filter 120 through the filter inlet 124 connected to the housing inlet 204a. While the water flowing into the inner space of the filter 120 moves to the outside of the filter 120 through the filter portion 122, foreign matter may be filtered out of the water.

[0345] The filter part 122 may include a filter side 122a facing the inside of the filter 120. While water passing through the filter inlet 124 moves from the inside to the outside of the filter 120, foreign matter may be filtered out of the water, and the foreign matter filtered out by passing through the filter part 122 may be collected on the filter side 122a of the filter part 122.

[0346] The water having passed through the filter 120 and from which foreign matter has been filtered out may move to the space between the filter mounting portion 216 and the filter 120. The water moving to the space between the filter mounting portion 216 and the filter 120 may sequentially pass through the drainage port 216b and the housing outlet 204b, and then be discharged from the detergent supply device 500. The water discharged through the housing outlet 204b may be discharged to the outside of the washing machine 5 through the external guide 84.

[0347] According to this configuration, since the washing machine 5 according to various embodiments can filter foreign matter from water discharged from the tub 20 , the amount of foreign matter discharged from the washing machine 2 (particularly, the amount of foreign matter having a fine size) may be reduced.

[0348] Reference Fig.30 and Fig.34 , the washing machine 5 according to various embodiments may not supply water to the detergent containing portion 113 while supplying water to the filter 120. To this end, the first water supply valve 62a may block the supply of water to the detergent supply device 500 through the first water supply guide 61a, and the second water supply valve 62b may allow the supply of water to the detergent supply device 500 through the second water supply guide 61b.

[0349] The water supplied through the second water supply guide 61b can flow into the detergent supply device 400 through the second water supply port 406b. The water flowing into the space between the housing cover 405 and the housing guide 407 can be guided to the washing hole 109 along the second flow path P2, and then discharged to the filter mounting portion 216. The water discharged to the filter mounting portion 216 can be discharged toward the filter 120. The water discharged through the washing hole 109 can be discharged toward the outside of the filter 120. The water discharged through the washing hole 109 can be discharged to the opposite side of the filter side 122a of the filter 120. Because water is supplied to the side of the filter 120 opposite to the filter side 122a where foreign matter is collected, the foreign matter collected on the filter side 122a can be separated from the filter side 122a. The foreign matter collected on the filter side 122a of the filter portion 122 (located at the upper side of the filter 120 facing the washing hole 109) can move to the lower part of the filter 120. At least a portion of foreign matter collected on the filter side 122 a of the filter portion 122 (located at the front, rear, left, or right side of the filter 120 ) may move to a lower portion of the filter 120 .

[0350] The water that washed the filter 120 may move to the space between the filter mounting portion 216 and the filter 120. The water moved to the space between the filter mounting portion 216 and the filter 120 may sequentially pass through the drain port 216b and the housing outlet 204b, and then be discharged from the detergent supply device 500. The water discharged through the housing outlet 204b may be discharged to the outside of the washing machine 5 through the external guide 84.

[0351] According to this configuration, the washing machine 5 according to various embodiments may wash the filter 120 with water supplied through the water supply device 60 a , thereby extending the life of the filter 120 and increasing a replacement cycle of the filter 120 .

[0352] Fig.35 is a control block diagram of a washing machine according to an embodiment.

[0353] Will refer to Fig.35 Components of the washing machine 5 according to the embodiment are described, and descriptions about the same components as those of the washing machine 1, 2, 3, or 4 according to the embodiment will be omitted.

[0354] Reference Fig.35 The washing machine 5 according to the embodiment may include a control panel 14 for interacting with a user, a driver 50 for rotating the drum 30, a water supply device 60 for supplying water to the tub 20, a pump device 70 for discharging water contained in the tub 20 to the outside, and a controller 90 for controlling various components of the washing machine 1. The control panel 14 may include an input device 14a and a display 14b, and operates based on a control signal from the controller 90.

[0355] The water supply device 60 may provide water supplied from an external water source to the inside of the tub 20 based on a control signal from the controller 90 .

[0356] The water supply device 60 according to the embodiment may include a first water supply valve 62a provided in the first water supply guide 61a to supply water to the first water supply port 406a and a second water supply valve 62b provided in the second water supply guide 61b to supply water to the second water supply port 406b.

[0357] According to various embodiments, the first water supply valve 62a and the second water supply valve 62b may be switching valves.

[0358] Water supplied through the first water supply guide 61 a may flow into the detergent supply device 500 through the first water supply port 406 a and be guided to the water supply hole 108 .

[0359] The water supplied through the second water supply guide 61b may flow into the detergent supply device 500 through the second water supply port 406b and be guided to the washing hole 109. The controller 90 of the washing machine 5 according to the embodiment may open the first water supply valve 62a to supply water. The controller 90 of the washing machine 5 according to the embodiment may close the first water supply valve 62a based on the satisfaction of the water supply termination condition.

[0360] Water supplied to the detergent supply device 500 through the first water supply port 406 a during water supply may flow into the water supply hole 108 .

[0361] According to various embodiments, the controller 90 of the washing machine 5 according to the embodiment may open the second water supply valve 62b for a predetermined time during water supply. The duration for which the first water supply valve 62a is opened during water supply may be shorter than the duration for which the second water supply valve 62b is opened.

[0362] For drainage, the controller 90 may drive the drainage pump 72 of the pump device 70. During drainage (1014), water pumped by the drainage pump 72 of the pump device 70 may be discharged to the outside via the detergent supply device 500. According to the drainage operation in which water from which foreign matter has been removed is discharged to the outside of the tub 20, environmental pollution may be prevented.

[0363] In the washing machine 5 according to the embodiment, since water flows into the filter 120 during the drainage operation, foreign substances may flow to the filter side 122a.

[0364] When the water level of the tub 20 is high, a large amount of water may flow into the filter 120, and therefore, even if the second water supply valve 62b is opened, it may be difficult to effectively remove foreign matter collected on the filter side 122a.

[0365] However, when the water level of the tub 20 is low, a small amount of water may flow into the filter 120, and the water may not reach the filter side 122a. Therefore, by opening the water supply valve 62, foreign matter collected on the filter side 122a can be effectively removed.

[0366] The controller 90 of the washing machine 5 according to the embodiment may wash the filter side 122a by opening the second water supply valve 62b in a state where the amount of water flowing into the filter 120 of the tub 20 is small during the drainage operation.

[0367] According to an embodiment, based on the water level of the tub 20 being lower than a predetermined water level (eg, a reset water level) during the drain operation, the controller 90 may open the second water supply valve 62b for a predetermined time. To this end, the washing machine 5 may further include a water level sensor.

[0368] As another example, the controller 90 of the washing machine 5 may open the second water supply valve 62b for a predetermined time based on the load of the pump device 70 being less than a predetermined value during the drainage operation.

[0369] As another example, the controller 90 of the washing machine 5 may open the second water supply valve 62b for a predetermined time based on the elapse of a predefined time from the start time of the drainage operation.

[0370] According to the present disclosure, foreign matter collected on the filter side 122a during the drainage operation may be effectively removed.

[0371] Fig.36 A cross section of a washing machine according to an embodiment is shown. Fig.37 yes Fig.36 An exploded view of the detergent supply unit is shown in . Fig.38 exist Fig.37 The flow of water supplied to the detergent containing portion is shown in the cross-section of the detergent supply device shown in FIG. Fig.39 exist Fig.37 The flow of water supplied from the pump device and then discharged to the tub is shown in the cross-section of the detergent supply device shown in FIG. Fig.40 exist Fig.37 The flow of water that washes the filter and is then discharged to the tub is shown in the cross-section of the detergent supply device shown in FIG. Fig.41 exist Fig.37 The flow of water supplied from the pump device and then discharged to the outside of the washing machine is shown in the cross-section of the detergent supply device shown in FIG. Fig.42 exist Fig.37 The flow of water that washes the filter and is then discharged to the outside of the washing machine is shown in the cross-section of the detergent supply device shown in FIG.

[0372] Will refer to Figures 36 to 42 A washing machine 6 according to an embodiment is described. Figures 36 to 42 In the description of the washing machine 2 shown in Figures 15 to 22 The washing machine 3 shown in Figures 24 to 28 The same components of the washing machine 4 shown in FIG. 1 are given the same reference numerals, and a detailed description thereof will be omitted.

[0373] Reference Figure 36 to Figure 38 , the washing machine 6 may include a detergent supply device 600 configured to receive water through the water supply device 60a. The detergent supply device 600 may be connected to the pump device 70 through the drainage guide 82 and the circulation guide 83. The detergent supply device 600 may be connected to the tub guide 63 to discharge the water in the detergent supply device 600 to the tub 20. The detergent supply device 600 may be connected to the external guide 84 to discharge the water in the detergent supply device 600 to the outside of the washing machine 6.

[0374] The detergent supply device 600 may include a drawer housing 600a configured with a housing body 301, a housing cover 405, and a housing guide 407. Fig.16 The detergent supply device 600 may include a housing body 301 having the same configuration as the housing body 301 of the detergent supply device 300 shown in FIG. Fig.16 The detergent supply device 600 may include a drawer 310 and a filter 120 having the same configuration as the drawer 310 and the filter 120 of the detergent supply device 300 shown in FIG. Fig.25 The housing cover 405 and the housing guide 407 are configured identically to the housing cover 405 and the housing guide 407 shown in FIG.

[0375] Reference Fig.36 and Fig.38, the washing machine 6 according to various embodiments may not supply water to the filter 120 while supplying water to the detergent holding portion 113. To this end, the first water supply valve 62a may allow the supply of water to the detergent supply device 600 through the first water supply guide 61a, and the second water supply valve 62b may block the supply of water to the detergent supply device 400 through the second water supply guide 61b. The hole opening / closing device 320 may open or close the drawer hole 311a.

[0376] The water supplied through the first water supply guide 61a may flow into the detergent supply device 600 through the first water supply port 406a. The water flowing into the space between the housing cover 405 and the housing guide 407 may be guided to the water supply hole 108 along the first flow path P1, and then discharged to the detergent holding portion 113. The water discharged to the detergent holding portion 113 may be discharged into the space between the drawer body 311 and the housing body 301 through the drawer outlet 314 together with the detergent in the detergent holding portion 113. The water discharged to the space between the drawer body 311 and the housing body 301 may be discharged through the barrel port 103. The water discharged through the barrel port 103 may be guided to the barrel 20 through the barrel guide 63.

[0377] Reference Fig.36 and Fig.39 The washing machine 6 according to various embodiments can filter foreign matter from the circulating water while circulating the water in the tub 20. When the water in the tub 20 circulates, the hole opening / closing device 320 can open the drawer hole 311a.

[0378] The water discharged from the pump device 70 toward the tub 20 may be guided along the circulation guide 83. The water guided along the circulation guide 83 may flow into the detergent supply device 600 through the circulation housing inlet 304aa of the housing inlet 304a. The water flowing through the circulation housing inlet 304aa of the housing inlet 304a may flow into the inner space of the filter 120 through the filter inlet 124 connected to the housing inlet 304a. While the water flowing into the inner space of the filter 120 moves to the outside of the filter 120 through the filter portion 122, foreign matter may be filtered out of the water.

[0379] The filter portion 122 may include a filter side 122a facing the inside of the filter 120. While the water flowing through the filter inlet 124 moves from the inside to the outside of the filter 120, foreign matter may be filtered out of the water, and the foreign matter filtered out by passing through the filter portion 122 may be collected on the filter side 122a of the filter portion 122.

[0380] The water that has passed through the filter 120 and from which foreign matter has been filtered out can move from the filter mounting portion 316 to the space between the drawer body 311 and the housing body 301 through the drawer hole 311a. The water discharged to the space between the drawer body 311 and the housing body 301 can be discharged through the barrel port 103. The water discharged through the barrel port 103 can be guided to the barrel 20 through the barrel guide 63.

[0381] According to this configuration, since the washing machine 6 according to various embodiments filters foreign matter from water circulating through the tub 20 , the amount of foreign matter discharged from the washing machine 6 (particularly, the amount of foreign matter having a fine size) may be reduced.

[0382] Reference Fig.36 and Fig.40 , the washing machine 6 according to various embodiments may not supply water to the detergent containing portion 113 while supplying water to the filter 120. To this end, the first water supply valve 62a may block the supply of water to the detergent supply device 600 through the first water supply guide 61a, and the second water supply valve 62b may allow the supply of water to the detergent supply device 600 through the second water supply guide 61b. The hole opening / closing device 320 may open the drawer hole 311a.

[0383] The water supplied through the second water supply guide 61b can flow into the detergent supply device 600 through the second water supply port 406b. The water flowing into the space between the housing cover 405 and the housing guide 407 can be guided to the washing hole 109 along the second flow path P2, and then discharged to the filter mounting portion 116. The water discharged to the filter mounting portion 116 can be discharged toward the filter 120. The water discharged through the washing hole 109 can be discharged toward the outside of the filter 120. The water discharged through the washing hole 109 can be discharged to the opposite side of the filter side 122a of the filter 120. Because water is supplied to the side of the filter 120 opposite to the filter side 122a where foreign matter is collected, the foreign matter collected on the filter side 122a can be separated from the filter side 122a. The foreign matter collected on the filter side 122a of the filter portion 122 (located at the upper side of the filter 120 facing the washing hole 109) can move to the lower part of the filter 120. At least a portion of foreign matter collected on the filter side 122 a of the filter portion 122 (located at the front, rear, left, or right side of the filter 120 ) may move to a lower portion of the filter 120 .

[0384] The water washing the filter 120 may move from the filter mounting portion 316 through the drawer hole 311a to the space between the drawer body 311 and the housing body 301. The water moved to the space between the drawer body 311 and the housing body 301 may be discharged through the tub port 103. The water discharged through the tub port 103 may be discharged into the tub 20 through the tub guide 63.

[0385] According to this configuration, the washing machine 6 according to various embodiments can wash the filter 120 with water supplied through the water supply device 60a, thereby extending the life of the filter 120 and increasing the replacement cycle of the filter 120. Since the washing machine 6 according to various embodiments does not supply water to the detergent receiving portion 113 while supplying water to the detergent supply device 400 to wash the filter 120, the washing machine 6 can reduce water consumption.

[0386] Reference Fig.36 and Fig.41 The washing machine 6 according to various embodiments can filter foreign matter from the discharged water while discharging the water in the tub 20 to the outside of the washing machine 6. While the water in the tub 20 is discharged to the outside of the washing machine 6, the hole opening / closing device 320 can close the drawer hole 311a.

[0387] The water discharged from the pump device 70 toward the tub 20 may be guided along the drainage guide 82. The water guided along the drainage guide 82 may flow into the detergent supply device 600 through the drainage housing inlet 304ab of the housing inlet 304a. The water flowing through the drainage housing inlet 304ab of the housing inlet 304a may flow into the inner space of the filter 120 through the filter inlet 124 connected to the housing inlet 304a. While the water flowing into the inner space of the filter 120 moves to the outside of the filter 120 by passing through the filter portion 12, foreign matter may be filtered out of the water.

[0388] The filter portion 122 may include a filter side 122a facing the inside of the filter 120. While the water flowing through the filter inlet 124 moves from the inside to the outside of the filter 120, foreign matter may be filtered out of the water, and the foreign matter filtered out by passing through the filter portion 122 may be collected on the filter side 122a of the filter portion 122.

[0389] The water having passed through the filter 120 and from which foreign matter has been filtered out may be discharged to the space between the filter mounting portion 316 and the filter 120. The water discharged to the space between the filter mounting portion 316 and the filter 120 may sequentially pass through the drainage port 316b and the housing outlet 304b, and then be discharged from the detergent supply device 600. The water discharged through the housing outlet 304b may be discharged to the outside of the washing machine 6 through the external guide 84.

[0390] According to this configuration, since the washing machine 6 according to various embodiments can filter foreign matter from water discharged from the tub 20 , the amount of foreign matter discharged from the washing machine 6 (particularly, the amount of foreign matter having a fine size) may be reduced.

[0391] Reference Fig.36 and Fig.42 , the washing machine 6 according to various embodiments may not supply water to the detergent containing portion 113 while supplying water to the filter 120. To this end, the first water supply valve 62a may block the supply of water to the detergent supply device 400 through the first water supply guide 51a, and the second water supply valve 62b may allow the supply of water to the detergent supply device 400 through the second water supply guide 61b. The hole opening / closing device 320 may close the drawer hole 311a.

[0392] The water supplied through the second water supply guide 61b can flow into the detergent supply device 600 through the second water supply port 406b. The water flowing into the space between the housing cover 405 and the housing guide 407 can be guided to the washing hole 109 along the second flow path P2, and then discharged to the filter mounting portion 316. The water discharged to the filter mounting portion 316 can be discharged toward the filter 120. The water discharged through the washing hole 109 can be discharged toward the outside of the filter 120. The water discharged through the washing hole 109 can be discharged to the opposite side of the filter side 122a of the filter 120. Because water is supplied to the side of the filter 120 opposite to the filter side 122a where foreign matter is collected, the foreign matter collected on the filter side 122a can be separated from the filter side 122a. The foreign matter collected on the filter side 122a of the filter portion 122 (located at the upper side of the filter 120 facing the washing hole 109) can move to the lower part of the filter 120. At least a portion of foreign matter collected on the filter side 122 a of the filter portion 122 (located at the front, rear, left, or right side of the filter 120 ) may move to a lower portion of the filter 120 .

[0393] The water that washed the filter 120 may move to the space between the filter mounting portion 316 and the filter 120. The water moved to the space between the filter mounting portion 316 and the filter 120 may sequentially pass through the drain port 316b and the housing outlet 304b, and then be discharged from the detergent supply device 600. The water discharged through the housing outlet 304b may be discharged to the outside of the washing machine 6 through the external guide 84.

[0394] According to this configuration, the washing machine 6 according to various embodiments may wash the filter 120 with water supplied through the water supply device 60 a , thereby extending the life of the filter 120 and increasing a replacement cycle of the filter 120 .

[0395] Fig.43 is a control block diagram of a washing machine according to an embodiment.

[0396] Will refer to Fig.43 Components of the washing machine 6 according to the embodiment are described, and descriptions about the same components as those of the washing machine 1, 2, 3, 4, or 5 according to the embodiment will be omitted.

[0397] Reference Fig.35 , the washing machine 6 according to the embodiment may include a control panel 14 for interacting with a user, a driver 50 for rotating the drum 30, a water supply device 60 for supplying water to the tub 20, a pump device 70 for discharging water contained in the tub 20 to the outside, and a controller 90 for controlling various components of the washing machine 1. The control panel 14 may include an input device 14a and a display 14b, and operates based on a control signal from the controller 90.

[0398] The washing machine 6 according to the embodiment may further include a hole opening / closing device 320 .

[0399] The hole opening / closing device 320 may include a hole door 321 and a door driver 322 for operating the hole door 321. According to the hole opening / closing device 320 opening / closing the drawer hole 311a, the filter installation part 316 may selectively communicate with the space between the drawer body 311 and the case body 301.

[0400] The water supply device 60 may provide water supplied from an external water source to the inside of the tub 20 based on a control signal from the controller 90 .

[0401] The water supply device 60 according to the embodiment may include a first water supply valve 62a provided in the first water supply guide 61a to supply water to the first water supply port 406a and a second water supply valve 62b provided in the second water supply guide 61b to supply water to the second water supply port 406b.

[0402] According to various embodiments, the first water supply valve 62a and the second water supply valve 62b may be switching valves.

[0403] Water supplied through the first water supply guide 61 a may flow into the detergent supply device 600 through the first water supply port 406 a and be guided into the water supply hole 108 .

[0404] The water supplied through the second water supply guide 61b may flow into the detergent supply device 600 through the second water supply port 406b and be guided into the washing hole 109. The controller 90 of the washing machine 6 according to the embodiment may open the first water supply valve 62a to supply water. The controller 90 of the washing machine 6 according to the embodiment may close the first water supply valve 62a based on the satisfaction of the water supply termination condition.

[0405] Water supplied into the detergent supply device 600 through the first water supply port 406 a during water supply may flow into the water supply hole 108 .

[0406] According to various embodiments, the controller 90 of the washing machine 6 according to the embodiment may open the second water supply valve 62b for a predetermined time during water supply. The duration for which the first water supply valve 62a is opened during water supply may be shorter than the duration for which the second water supply valve 62b is opened.

[0407] For the circulation operation, the controller 90 may drive the circulation pump 71 of the pump device 70. During the circulation operation, water pumped by the circulation pump 71 of the pump device 70 of the washing machine 6 according to the embodiment may flow into the tub 20 via the detergent supply device 600. According to the circulation operation in which water from which foreign matter has been removed flows into the tub 20, more efficient washing may be performed.

[0408] For drainage, the controller 90 may drive the drainage pump 72 of the pump device 70. During drainage, water pumped by the drainage pump 72 of the pump device 70 of the washing machine 3 according to the embodiment may be discharged to the outside via the detergent supply device 300. According to the drainage operation in which the water from which foreign matter has been removed is discharged to the outside of the tub 20, environmental pollution may be further prevented.

[0409] In the washing machine 6 according to the embodiment, foreign substances may be collected on the filter 120 during the drainage operation and the circulation operation.

[0410] The washing machine 6 according to the embodiment may drive the water supply device 60 for a predetermined time during the drainage operation.

[0411] For example, the controller 90 according to the embodiment may open the second water supply valve 62b for a predetermined time during the drainage operation.

[0412] According to the present disclosure, by opening the second water supply valve 62b during the drainage operation, foreign matter collected on the filter side 122a during the circulation operation may be removed.

[0413] When the water level of the tub 20 is high, a large amount of water may flow into the filter 120, and therefore, even if the second water supply valve 62b is opened, it may be difficult to effectively remove foreign matter collected on the filter side 122a.

[0414] However, when the water level of the tub 20 is low, a small amount of water may flow into the filter 120, and the water may not reach the filter side 122a. Therefore, by opening the second water supply valve 62b, foreign matter collected on the filter side 122a can be effectively removed.

[0415] The controller 90 may clean the filter side 122a by opening the second water supply valve 62b in a state where the amount of water flowing into the filter 120 of the tub 20 is small during the drainage operation.

[0416] According to an embodiment, based on the water level of the tub 20 being lower than a predetermined water level (eg, a reset water level) during the drain operation, the controller 90 may open the second water supply valve 62b for a predetermined time. To this end, the washing machine 2 may further include a water level sensor (not shown).

[0417] As another example, based on the load of the pump device 70 being less than a predetermined value during the drainage operation, the controller 90 may open the second water supply valve 62 b for a predetermined time.

[0418] As another example, the controller 90 may open the second water supply valve 62 b for a predetermined time based on the elapse of a predefined time from the start time of the drainage operation.

[0419] According to an embodiment, foreign matter collected on the filter side 122a may be effectively removed during a drainage operation.

[0420] The washing machine 6 according to the embodiment may open the drawer hole 311 a during the cycle operation ( 3200 ).

[0421] That is, the controller 90 of the washing machine 6 according to the embodiment may control the hole opening / closing device 320 to open the drawer hole 311 a during the cycle operation.

[0422] The aperture opening / closing device 320 may open the aperture door 321 based on a control signal from the controller 90 during a cycle operation.

[0423] Therefore, water passing through the filter 120 during the circulation operation may flow into the tub 20 again through the drawer hole 311 a .

[0424] According to the present disclosure, water passing through the filter 120 during the circulation operation may be guided to flow into the tub 20 again.

[0425] Furthermore, according to the present disclosure, since the hole door 321 is located at the opposite side to the side toward which water flows, most of the water flowing into the inner space of the filter 120 by the pump device 70 may circulate to the tub 20 through the drawer hole 311 a by pressure.

[0426] Meanwhile, according to various embodiments, the washing machine 6 may further include a drain valve (not shown) for opening / closing the housing outlet 304 b or opening / closing the external guide 84 .

[0427] In the case where the washing machine 6 further includes a drain valve (not shown) for opening / closing the housing outlet 304 b or opening / closing the outer guide 84 , the controller 90 may close the drain valve during the cycle operation.

[0428] According to the present disclosure, the amount of water discharged to the outside of the washing machine 6 during the cycle operation may be reduced.

[0429] The washing machine 6 according to the embodiment may close the drawer hole 311 a during the drainage operation.

[0430] That is, the controller 90 of the washing machine 6 according to the embodiment may control the hole opening / closing device 320 to close the drawer hole 311 a during the drainage operation.

[0431] The hole opening / closing device 320 may close the hole door 321 based on a control signal from the controller 90 during the drainage operation.

[0432] Therefore, water passing through the filter 120 during the drainage operation may be discharged to the outside through the housing outlet 304 b.

[0433] According to the present disclosure, during the drainage operation, water passing through the filter 120 may be guided to be discharged to the outside of the washing machine 6 .

[0434] According to an embodiment, the washing machine 6 may receive a user input for cleaning the filter 120 .

[0435] The user input for cleaning the filter 120 may be received through the input device 14 a of the control panel 14 , or may be received from an external device (eg, a user terminal) through the communication module of the washing machine 6 .

[0436] The controller 90 may open the second water supply valve 62b for a predetermined time based on the reception of the user input for cleaning the filter 120. At this time, the water supply valve 62 may be partially opened.

[0437] Fig.44 is a control block diagram illustrating a configuration of a washing machine according to various embodiments.

[0438] Reference Fig.44The washing machine 1, 2, 3, 4, 5 or 6 according to the embodiment may include a control panel 14 for interacting with a user, a driver 50 for rotating the drum 30, a water supply device 60 for supplying water to the tub 20, a pump device 70 for discharging water contained in the tub 20 to the outside, and a controller 90 for controlling various components of the washing machine 1. The control panel 14 may include an input device 14a and a display 14b, and operates based on a control signal from the controller 90.

[0439] The driver 50 may rotate the drum 30. The driver 50 may include a driving circuit for supplying a driving current to the driving motor 51, and the driving circuit may supply the driving current to the driving motor 51 in response to a driving signal from the controller 90.

[0440] According to an embodiment, the driver 50 may include a rectifier circuit for rectifying AC power from an external power source, a DC link circuit for removing fluctuations in the rectified power and outputting DC power, an inverter circuit for converting the DC power into sinusoidal drive power and outputting a drive current to the drive motor 51, a current sensor for measuring the drive current supplied to the drive motor 51, and a gate driver for turning on / off a switching device included in the inverter circuit based on a drive signal from the controller 90.

[0441] The water supply device 60 may provide water supplied from an external water source to the inside of the tub 20 based on a control signal from the controller 90 .

[0442] The water supply device 60 of the washing machine 1 , 2 , or 3 according to the embodiment may include a water supply valve 62 provided in the water supply guide 61 to supply water to the water supply port 106 .

[0443] According to various embodiments, the water supply valve 62 may be an electronic valve whose opening degree is adjusted, or an on-off valve whose opening degree is not adjusted.

[0444] Water supplied by the water supply device 60 of the washing machine 1, 2 or 3 according to the embodiment can flow into the detergent supply device 100, 200 or 300 through the water supply port 106, a part of the water in the space between the shell cover 105 and the shell guide 107 can be discharged to the detergent containing portion 113 through the water supply hole 108, and another part of the water in the space between the shell cover 105 and the shell guide 107 can be discharged to the filter mounting portion 116 through the washing hole 109.

[0445] The water supply device 60 of the washing machine 4, 5 or 6 according to the embodiment may include a first water supply valve 62a provided in the first water supply guide 61a to supply water to the first water supply port 406a and a second water supply valve 62b provided in the second water supply guide 61b to supply water to the second water supply port 406b.

[0446] According to various embodiments, the first water supply valve 62a and the second water supply valve 62b may be switching valves.

[0447] Water supplied through the first water supply guide 61 a may flow into the detergent supply device 400 , 500 , or 600 through the first water supply port 406 a and be guided into the water supply hole 108 .

[0448] Water supplied through the second water supply guide 61 b ​​may flow into the detergent supply device 400 , 500 , or 600 through the second water supply port 406 b and be guided into the washing hole 109 .

[0449] The pump device 70 may include a circulation pump 71 and a drain pump 72. Water pumped by the circulation pump 71 of the pump device 70 of the washing machine 1, 3, 4 or 6 according to the embodiment may flow into the tub 20 via the detergent supply device 100, 300, 400 or 600.

[0450] Water pumped by the circulation pump 71 of the pump device 70 of the washing machine 2 or 5 according to the embodiment may flow into the tub 20 without passing through the detergent supply device 200 or 500 .

[0451] Water pumped by the circulation pump 71 of the pump device 70 of the washing machine 2 , 3 , 5 , or 6 according to the embodiment may be discharged to the outside via the detergent supply device 200 , 300 , 500 , or 600 .

[0452] Water pumped by the drain pump 72 of the pump device 70 of the washing machine 1 or 4 according to the embodiment may be discharged to the outside without passing through the detergent supply device 100 or 400 .

[0453] The pump device 70 may be driven by a drive signal from the controller 90 .

[0454] The controller 90 may include at least one memory 92 and at least one processor 91 for performing the above operations and the operations to be described below.

[0455] According to an embodiment, the controller 90 may include at least one memory 92 and at least one processor 91, at least one memory 92 storing data in the form of algorithms and / or programs for controlling the operation of components in the washing machine 1, 2, 3, 4, 5 or 6; at least one processor 91 performs the above operations and the operations described below by using the data stored in the at least one memory 92. The memory 92 and the processor 91 may be implemented with separate chips. The processor 91 may include one, two or more processor chips or one, two or more processing cores. The memory 92 may include one, two or more memory chips or one, two or more memory blocks. In addition, the memory 92 and the processor 91 may be implemented with a single chip.

[0456] The controller 90 may process user input received through the input device 14a and control various components of the washing machine 1, 2, 3, 4, 5 or 6 (eg, the driver 50, the water supply device 60, the display 14b and the pump device 70) based on the processing result of the user input.

[0457] Fig.45 An example of a washing cycle according to an embodiment is shown.

[0458] Reference Fig.45 , the washing cycle may include a washing operation 1010 , a rinsing operation 1020 and / or a dehydration operation 1030 .

[0459] The washing machine 1, 2, 3, 4, 5 or 6 may sequentially perform a washing operation 1010, a rinsing operation 1020 and a dehydrating operation 1030 according to a user input through the input device 14a.

[0460] The laundry may be washed through the washing operation 1010. More specifically, the foreign matter attached to the laundry may be separated from the laundry by a chemical action by a detergent and / or a mechanical action such as falling.

[0461] The washing operation 1010 may include laundry measurement 1011 for measuring the amount of laundry, water supply 1012 for supplying water to the tub 20, washing 1013 for rotating the drum 30 at a low speed to wash the laundry, drainage 1014 for discharging water stored in the tub 20, and mid-spinning 1015 for rotating the drum 30 at a high speed to separate water from the laundry.

[0462] For laundry measurement 1011 , the controller 90 may control the driver 50 to repeatedly turn on / off the driving motor 51 , and measure the load (the weight of laundry) in the drum 30 based on a back electromotive force value generated when the driving motor 51 is turned off.

[0463] For water supply 1012 , the controller 90 may control the water supply device 60 to provide water supplied from an external water supply source to the inside of the tub 20 .

[0464] The controller 90 of the washing machine 1, 2 or 3 according to the embodiment may open the water supply valve 62 for supplying water 1012. The controller 90 of the washing machine 1, 2 or 3 according to the embodiment may close the water supply valve 62 based on satisfaction of the water supply termination condition.

[0465] According to the water supply valve 62 being implemented as an electronic valve whose opening degree is adjusted, the controller 90 may fully open the electronic valve to supply water.

[0466] Water supplied to the detergent supply device 100 , 200 , or 300 through the water supply port 106 during water supply 1012 may flow into the water supply hole 108 and the washing hole 109 .

[0467] According to the present disclosure, since water flows into the washing hole 109 during the water supply 1012 , the filter 120 may be washed.

[0468] The controller 90 of the washing machine 4, 5 or 6 according to the embodiment may open the first water supply valve 62a for the water supply 1012. The controller 90 of the washing machine 4, 5 or 6 according to the embodiment may close the water supply valve 62a based on satisfaction of the water supply termination condition.

[0469] Water supplied to the water supply device 400 , 500 , or 600 through the first water supply port 406 a during water supply 1012 may flow into the water supply hole 108 .

[0470] According to various embodiments, the controller 90 of the washing machine 4, 5 or 6 according to the embodiment may open the second water supply valve 62b for a predetermined time during the water supply 1012. The duration for which the first water supply valve 62a is opened during the water supply 1012 may be shorter than the duration for which the second water supply valve 62b is opened.

[0471] According to an embodiment, since water flows into the washing hole 109 during the water supply 1012 , the filter 120 may be cleaned.

[0472] For washing 1013, the controller 90 may control the driver 50 to rotate the driving motor 51 forward (eg, clockwise) or backward (eg, counterclockwise). By rotating the drum 30, the laundry may fall from the upper region of the drum 30 to the lower region of the drum 30, and the laundry may be washed by falling.

[0473] During washing 1013 , a circulation operation of allowing water in the tub 20 to pass through the pump device 70 and enter the tub 20 again may be performed.

[0474] For the circulation operation, the controller 90 may drive the circulation pump 71 of the pump device 70. During the circulation operation, water pumped by the circulation pump 71 of the pump device 70 of the washing machine 1, 3, 4, or 6 according to the embodiment may flow into the tub 20 via the detergent supply device 100, 300, 400, or 600. According to the circulation operation in which water from which foreign matter has been removed flows into the tub 20, more efficient washing may be performed.

[0475] Meanwhile, in the washing machine 1, 3, 4 or 6 according to the embodiment, foreign substances may be collected in the filter 120 during the cycle operation.

[0476] For drainage 1014, the controller 90 may drive the drainage pump 72 of the pump device 70. During drainage 1014, water pumped by the drainage pump 72 of the pump device 70 of the washing machine 2, 3, 5, or 6 according to the embodiment may be discharged to the outside via the detergent supply device 200, 300, 500, or 600. According to the drainage 1014 in which the water from which foreign matter has been removed is discharged to the outside of the tub 20, environmental pollution may be prevented.

[0477] Meanwhile, in the washing machine 2 , 3 , 5 or 6 according to the embodiment, foreign matter may be collected in the filter 120 during the drainage 1014 .

[0478] For midway dehydration 1015, the controller 90 may control the driver 50 to rotate the drive motor 51 at high speed. By the high-speed rotation of the drum 30, water may be separated from the clothes contained in the drum 30 and discharged to the outside of the washing machine 1, 2, 3, 4, 5 or 6.

[0479] The laundry may be rinsed through the rinsing operation 1020. More specifically, detergent or foreign matter remaining in the laundry may be washed away by water.

[0480] The rinsing operation 1020 may include supplying water 1021 to supply water to the tub 20, rinsing 1022 to drive the drum 30 to rinse the laundry, draining 1023 to discharge the water stored in the tub 20, and dehydrating 1024 to drive the drum 30 to separate water from the laundry.

[0481] The water supply 1021, drainage 1023 and mid-spinning 1024 of the rinsing operation 1020 may be respectively the same as the water supply 1012, drainage 1014 and mid-spinning 1015 of the washing operation 1010. Therefore, the description of the water supply 1021, drainage 1023 and mid-spinning 1024 of the rinsing operation 1020 will be omitted.

[0482] For rinsing 1022, the controller 90 may control the driver 50 to rotate the driving motor 51 forward (e.g., clockwise) or backward (e.g., counterclockwise). By rotating the drum 30, the laundry may drop from the upper region of the drum 30 to the lower region of the drum 30, and the laundry may be rinsed by falling.

[0483] During rinsing 1022 , a circulation operation of allowing water in tub 20 to pass through pump device 70 and enter tub 20 again may be performed.

[0484] For the circulation operation, the controller 90 may drive the circulation pump 71 of the pump device 70. During the circulation operation, water pumped by the circulation pump 71 of the pump device 70 of the washing machine 1, 3, 4, or 6 according to the embodiment may flow into the tub 20 via the detergent supply device 100, 300, 400, or 600. According to the circulation operation in which water from which foreign matter has been removed flows into the tub 20, more effective rinsing may be performed.

[0485] The laundry may be dehydrated through the dehydration 1030. More specifically, water may be separated from the laundry by the high-speed rotation of the drum 30, and the separated water may be discharged to the outside of the washing machine 1.

[0486] The dehydration operation 1030 may include a final dehydration 1031 of separating water from the laundry by rotating the drum 30 at a high speed. Due to the final dehydration 1031, the midway dehydration 1024 at the end of the rinsing operation 1020 may be omitted.

[0487] For the final dehydration 1031, the controller 90 may control the driver 50 to rotate the driving motor 51 at a high speed. By the high-speed rotation of the drum 30, water may be separated from the laundry contained in the drum 30 and discharged to the outside of the washing machine 1, 2, 3, 4, 5 or 6. Moreover, the rotation speed of the driving motor 51 may be increased in stages.

[0488] Since the operation of the washing machine 1, 2, 3, 4, 5 or 6 is terminated by the final spinning 1031, the duration for performing the final spinning 1031 may be longer than the duration for performing the midway spinning 1015 or 1024.

[0489] According to various embodiments, during the dehydration operation 1030 , a drainage operation may be performed. For example, the controller 90 may operate the drainage pump 72 of the pump device 70 during the dehydration operation 1030 .

[0490] In the present disclosure, the circulation operation may be an operation in which the circulation pump 71 of the pump device 70 is operated, and the drainage operation may be an operation in which the drainage pump 72 of the pump device 70 is operated.

[0491] According to the present disclosure, the filter 120 can be washed by discharging a portion of water through the washing hole 109 to the filter mounting portion 116 during water supply 1012 or 1021. By washing the filter 120 for each of the water supply 1012 or 1021, the life of the filter 120 can be increased, which improves user satisfaction.

[0492] According to various embodiments, the operation of washing the filter 120 may be performed even in the remaining operations except for the water supply 1012 or 1021 .

[0493] Fig.46 is a flowchart illustrating an example of a control method of a washing machine according to various embodiments.

[0494] Reference Fig.46 , the washing machine 1, 2, 3, 4, 5 or 6 according to the embodiment may perform a circulation operation (1100) during a washing cycle. The controller 90 may drive the pump device 70 to perform the circulation operation. As described above, the circulation operation may be performed in a portion of the washing operation 1010 or in a portion of the rinsing operation 1020.

[0495] In the washing machine 1, 3, 4 or 6 according to the embodiment, water pumped by the circulation pump 71 of the pump device 70 during the circulation operation may flow into the tub 20 via the detergent supply device 100, 300, 400 or 600. Therefore, when the circulation operation is completed, foreign matter filtered out by passing through the filter part 122 may be collected on the filter side 122a of the filter part 122.

[0496] The washing machine 1 , 3 , 4 , or 6 according to the embodiment may drive the water supply device 60 for a predetermined time during the drainage operation ( 1200 ).

[0497] For example, the controller 90 of the washing machine 1 or 3 according to the embodiment may open the water supply valve 62 for a predetermined time during the drain operation.

[0498] According to the water supply valve 62 being implemented as an electronic valve that adjusts its opening, the controller 90 may partially open the electronic valve for a predetermined time during the drainage operation. That is, the controller 90 may open the water supply valve 62 at a first opening during the water supply operation, and open the water supply valve 62 at a second opening during the drainage operation for a predetermined time, wherein the first opening may be greater than the second opening.

[0499] According to the present disclosure, by opening the water supply valve 62 during the drainage operation, foreign matter collected on the filter side 122 a during the circulation operation may be removed.

[0500] Furthermore, according to the present disclosure, by partially opening the water supply valve 62 during the drainage operation, the amount of water flowing into the tub 20 may be reduced.

[0501] As another example, the controller 90 of the washing machine 4 or 6 according to the embodiment may open the second water supply valve 62b for a predetermined time during the drain operation.

[0502] According to the present disclosure, by opening the second water supply valve 62b during the drainage operation, foreign matter collected on the filter side 122a during the circulation operation may be removed.

[0503] The predetermined time may be set to be shorter than the time of the drainage operation, and may be stored in the memory 92. For example, the predetermined time may be set to approximately 10 seconds, but is not limited thereto.

[0504] According to the present disclosure, by pushing foreign materials collected on the filtering side 122a during the cycle operation to the other side, an effect of extending the life of the filter 120 can be expected.

[0505] Meanwhile, the washing machine 2 or 5 according to the embodiment may also drive the water supply device 60 for a predetermined time during the drainage operation.

[0506] In the washing machine 2, 3, 5 or 6 according to the embodiment, since water flows into the filter 120 during the drainage operation, foreign substances may flow to the filter side 122a.

[0507] When the water level of the tub 20 is high, a large amount of water may flow into the filter 120, and therefore, even if the water supply valve 62 is opened, it may be difficult to effectively remove foreign matter collected on the filter side 122a.

[0508] However, when the water level of the tub 20 is low, a small amount of water may flow into the filter 120, and the water may not reach the filter side 122a. Therefore, by opening the water supply valve 62, foreign matter collected on the filter side 122a can be effectively removed.

[0509] The controller 90 of the washing machine 2, 3, 5 or 6 according to the embodiment may wash the filter side 122a by opening the water supply valve 62 in a state where the amount of water flowing into the filter 120 of the tub 20 is small during the drainage operation.

[0510] According to an embodiment, based on the water level of the tub 20 being lower than a predetermined water level (e.g., a reset water level) during the drain operation, the controller 90 of the washing machine 2, 3, 5, or 6 may open the water supply valve 62 or 62b for a predetermined time. To this end, the washing machine 1, 2, 3, 4, 5, or 6 may further include a water level sensor (not shown).

[0511] As another example, the controller 90 of the washing machine 2, 3, 5, or 6 may open the water supply valve 62 or 62b for a predetermined time based on that the load of the pump device 70 is less than a predetermined value during the drainage operation.

[0512] As another example, the controller 90 of the washing machine 2, 3, 5, or 6 may open the water supply valve 62 or 62b for a predetermined time based on the elapse of a predetermined time from the start time of the drainage operation.

[0513] According to the present disclosure, foreign matter collected on the filter side 122a during the drainage operation may be effectively removed.

[0514] Fig.47 is a flowchart illustrating an example of a control method of a washing machine according to various embodiments.

[0515] Reference Fig.47 , the washing machine 1, 2, 3, 4, 5 or 6 according to the embodiment may perform a drainage operation (2100) during a washing cycle. The controller 90 may drive the pump device 70 to perform the drainage operation. As described above, the drainage operation may be performed in part of the washing operation 1010 or in part of the rinsing operation 1020.

[0516] In the washing machine 2, 3, 5 or 6 according to the embodiment, water pumped by the drain pump 72 of the pump device 70 during the drain operation may flow into the tub 20 via the detergent supply device 200, 300, 500 or 600. Therefore, foreign matter filtered out by passing through the filter part 122 during the drain operation may be collected on the filter side 122a of the filter part 122.

[0517] As described above, the controller 90 of the washing machine 2, 3, 5 or 6 according to the embodiment may open the water supply valve 62 or 62b in a state where the amount of water flowing into the filter 120 is small during the drainage operation, thereby washing the filter side 122a.

[0518] The washing machine 2, 3, 5 or 6 according to the embodiment may drive the water supply device 60 for a predetermined time based on the termination of the drainage operation (2200).

[0519] The termination of the drainage operation may be the termination of the operation of the pump device 70 .

[0520] That is, the washing machine 2, 3, 5 or 6 according to the embodiment may drive the water supply device 60 for a predetermined time based on the termination of the operation of the pump device 70.

[0521] For example, the controller 90 of the washing machine 2 or 3 according to the embodiment may open the water supply valve 62 for a predetermined time based on the termination of the drainage operation.

[0522] According to the water supply valve 62 being implemented as an electronic valve that adjusts its opening, the controller 90 may partially open the electronic valve for a predetermined time based on the termination of the drainage operation. That is, the controller 90 may open the water supply valve 62 at a first opening during the water supply operation, and open the water supply valve 62 at a second opening for a predetermined time after the drainage operation is terminated, wherein the first opening may be greater than the second opening.

[0523] According to the present disclosure, by washing the filter side 122 a in a state where the drainage operation is terminated, that is, washing the filter side 122 a in a state where the filter side 122 a is most contaminated, the washing efficiency may be improved.

[0524] Furthermore, according to the present disclosure, by adjusting the opening degree of the electronic valve, the amount of water flowing into the tub 20 after the drainage operation is terminated may be reduced.

[0525] As another example, the controller 90 of the washing machine 5 or 6 according to the embodiment may open the second water supply valve 62b for a predetermined time based on the termination of the drainage operation.

[0526] According to the present disclosure, by washing the filter side 122 a in a state where the drainage operation is terminated, that is, washing the filter side 122 a in a state where the filter side 122 a is most contaminated, the washing efficiency may be improved.

[0527] Furthermore, according to the present disclosure, by opening only the second water supply valve 62b, the amount of water flowing into the tub 20 after the drainage operation is terminated may be reduced.

[0528] According to various embodiments, the washing machine 1 or 4 may also open the water supply valve 62 or 62b based on the termination of the drain operation.

[0529] Fig.48 is a control block diagram illustrating a configuration of a washing machine according to various embodiments.

[0530] Reference Fig.48 According to the washing machine 3 or 6 of the embodiment, in addition to the above reference Fig.44 In addition to the components described, a hole opening / closing device 320 may also be included.

[0531] The hole opening / closing device 320 may include a hole door 321 and a door driver 322 for operating the hole door 321. According to the hole opening / closing device 320 opening / closing the drawer hole 311a, the filter installation part 316 may selectively communicate with the space between the drawer body 311 and the case body 301.

[0532] Fig.49 is a flowchart illustrating an example of a control method of a washing machine according to various embodiments.

[0533] Reference Fig.49 , the washing machine 3 or 6 according to the embodiment may open the drawer hole 311 a ( 3200 ) during the cycle operation (the cycle in 3100 ).

[0534] That is, the controller 90 of the washing machine 3 or 6 according to the embodiment may control the hole opening / closing device 320 to open the drawer hole 311 a ( 3200 ) during the cycle operation (the cycle in 3100 ).

[0535] The aperture opening / closing device 320 may open the aperture door 321 based on a control signal from the controller 90 during a cycle operation.

[0536] Therefore, water passing through the filter 120 during the circulation operation may flow into the tub 20 again through the drawer hole 311 a .

[0537] According to the present disclosure, water flowing through the filter 120 during the circulation operation may be guided to flow into the tub 20 again.

[0538] Furthermore, according to the present disclosure, since the hole door 321 is located at the opposite side to the side toward which water flows, most of the water flowing into the inner space of the filter 120 by the pump device 70 may circulate to the tub 20 through the drawer hole 311 a by pressure.

[0539] Meanwhile, the washing machine 3 or 6 according to various embodiments may further include a drain valve (not shown) for opening / closing the housing outlet 304 b or opening / closing the external guide 84 .

[0540] In the case where the washing machine 3 or 6 further includes a drain valve (not shown) for opening / closing the housing outlet 304 b or opening / closing the outer guide 84 , the controller 90 may close the drain valve during the cycle operation.

[0541] According to the present disclosure, the amount of water discharged to the outside of the washing machine 3 or 6 during the cycle operation may be reduced.

[0542] The washing machine 3 or 6 according to the embodiment may close the drawer hole 311 a ( 3300 ) during the drainage operation (drainage in 3100 ).

[0543] That is, the controller 90 of the washing machine 3 or 6 according to the embodiment may control the hole opening / closing device 320 to close the drawer hole 311 a ( 3300 ) during the drainage operation (drainage in 3100 ).

[0544] The hole opening / closing device 320 may close the hole door 321 based on a control signal from the controller 90 during the drainage operation.

[0545] Therefore, water passing through the filter 120 during the drainage operation may be discharged to the outside through the housing outlet 304 b.

[0546] According to the present disclosure, water passing through the filter 120 during the drainage operation may be guided to be discharged to the outside of the washing machine 3 or 6 .

[0547] Meanwhile, as described above, the washing machine 3 or 6 according to the embodiment may drive the water supply device 60 for a predetermined time during the drainage operation ( 3400 ).

[0548] For example, the controller 90 may clean the filter side 122 a by opening the water supply valve 62 during the drainage operation in a state in which the amount of water flowing into the filter 120 of the tub 20 is small.

[0549] As another example, the washing machine 3 or 6 according to the embodiment may drive the water supply device 60 for a predetermined time based on the termination of the drainage operation ( 3400 ).

[0550] For example, the controller 90 may open the water supply valve 62 or 62b for a predetermined time based on the termination of the drainage operation.

[0551] According to the present disclosure, all of foreign matters of water circulated during the circulation operation and foreign matters of water discharged during the drainage operation may be removed by the filter 120 .

[0552] Meanwhile, an operation of washing the filter 120 may be performed according to a command from a user.

[0553] According to an embodiment, the washing machine 1 , 2 , 3 , 4 , 5 or 6 may receive a user input for cleaning the filter 120 .

[0554] The user input for cleaning the filter 120 may be received through the input device 14 a of the control panel 14 , or from an external device (eg, a user terminal) through a communication module of the washing machine 1 , 2 , 3 , 4 , 5 , or 6 .

[0555] The controller 90 may open the water supply valve 62 or 62 b for a predetermined time based on the receipt of a user input for cleaning the filter 120 .

[0556] The controller 90 of the washing machine 1, 2, or 3 according to the embodiment may open the water supply valve 62 for a predetermined time based on reception of a user input for cleaning the filter 120. At this time, the water supply valve 62 may be partially opened.

[0557] The controller 90 of the washing machine 4, 5 or 6 according to the embodiment may open the second water supply valve 62b for a predetermined time based on reception of a user input for cleaning the filter 120. At this time, the water supply valve 62 may be partially opened.

[0558] According to the present disclosure, by performing the operation of cleaning the filter 120 according to the user's intention, user convenience may be improved.

[0559] So far, specific embodiments have been shown and described, however, the present disclosure is not limited to these embodiments. It should be understood that a person skilled in the art can make various modifications without departing from the gist of the technical concept of the present disclosure as defined in the appended claims.

Claims

1. Washing machine, including: shell; a barrel, disposed inside the shell; a detergent supply connected to the tub; as well as a water supply guide configured to guide water to the detergent supplier, Wherein, the detergent supplier comprises: a drawer configured to hold detergent; a filter detachably mounted in the drawer; and a drawer housing configured to accommodate the drawer, and The drawer case includes a washing hole configured to guide a portion of water supplied to the drawer case to the filter and supply water to an outer side of the filter, the outer side being opposite to an inner side of the filter where foreign substances are collected.

2. The washing machine according to claim 1, wherein: The drawer includes a detergent receiving portion configured to receive the detergent, and The drawer case includes a water supply hole configured to guide a portion of water supplied to the drawer case to the detergent receiving portion.

3. The washing machine according to claim 2, further comprising a pump device configured to move water discharged from the tub to the tub, in, The filter is positioned to filter water moving from the pump device to the tub.

4. The washing machine according to claim 3, wherein: The drawer case includes a tub port configured to discharge water supplied to the drawer through the water supply hole together with detergent into the tub, and The tub port is configured to guide water supplied to the filter through the washing hole to the tub.

5. The washing machine according to claim 2, wherein: The water supply guide is located closer to the washing hole than the water supply hole.

6. The washing machine according to claim 1, further comprising: a valve configured to open or close the water supply guide; as well as a controller configured to control the valve, Wherein the controller is configured to open the valve for a predetermined time during a drainage operation.

7. The washing machine according to claim 6, in, The valve is an electronic valve whose opening is adjusted, and The controller is configured to: fully opening the electronic valve during water supply operation, and The electronic valve is partially opened for the predetermined time during the drain operation.

8. The washing machine according to claim 2, wherein: The water supply guide comprises: a first guide configured to guide water to the water supply hole; and The second guide is configured to guide water to the washing hole.

9. The washing machine according to claim 8, further comprising: a first valve configured to open or close the first guide; a second valve configured to open or close the second guide; as well as A controller is configured to control the first valve and the second valve.

10. The washing machine according to claim 9, wherein: The controller is configured to: Based on receiving a user input for cleaning the filter, the second valve is opened for a predetermined time.

11. The washing machine according to claim 9, wherein: The controller is configured to: The second valve is opened for a predetermined time during the drainage operation.

12. The washing machine according to claim 9, further comprising: a pump device configured to move water discharged from the bucket to the bucket, wherein the filter is positioned to filter water moved from the pump means to the tub, and The controller is configured to open the second valve for a predetermined time based on terminating operation of the pump device.

13. The washing machine according to claim 2, wherein: The filter is located behind the detergent containing portion, The water supply hole is located above the detergent receiving portion, and The washing hole is located above the filter.

14. The washing machine according to claim 1, further comprising a pump device configured to move water discharged from the tub to the outside of the housing, in, The filter is positioned to filter water moving from the pump device to the exterior of the housing.

15. The washing machine according to claim 14, wherein: The drawer housing includes a housing outlet configured to discharge water passing through the filter to the outside of the drawer housing, and The housing outlet is configured to guide water supplied to the filter through the washing hole to the outside of the drawer housing.

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