Washing machine

Abstract

The washing machine includes: a housing; a tub in the housing; a detergent container including a detergent storage space for storing detergent supplied into the tub, and moving in an extraction direction to be extracted from the housing and in an insertion direction to be inserted into the housing; and a first elastic member and a second elastic member, where the first elastic member and the second elastic member are configured such that when the detergent container is moved to the housing, the first elastic member presses the detergent container away from a first position in the housing in the insertion direction, and the second elastic member presses the detergent container away from a second position in the housing. And the second elastic member presses the detergent container away from a second position in the housing in the insertion direction. The second position is spaced apart from the first position in the insertion direction, and the first and second elastic members can press the detergent container in the insertion direction when the detergent container is moved from the housing.

Description

Technical Field

[0001] The present disclosure relates to a washing machine including a detergent box. Background Art

[0002] A washing machine is a device that uses the driving force of a motor to agitate laundry, washing water, and detergent, which are put together into a washing chamber, to wash the laundry by mutual friction.

[0003] The washing machine includes a housing forming an exterior and a detergent supply device provided in the housing. The detergent supply device is a device that allows detergent to be uniformly mixed and supplied together with water in a process of supplying water to a tub of the washing machine.

[0004] The detergent supply device may include a detergent box configured to store (or receive) detergent and a detergent pump configured to pump the detergent stored in the detergent box. The detergent stored in the detergent box is supplied to the detergent pump and then discharged to the outside of the detergent pump to move to the washing chamber together with the wash water.

[0005] The detergent box can be drawn out of the housing or inserted into the housing to allow the user to put detergent into the detergent box. The washing machine may include an elastic member disposed at one side of the detergent box so that when the detergent box is inserted into the housing, the detergent box is inserted into the housing without excessive force by the user and the detergent box is docked with the detergent pump. Summary of the invention

[0006] Technical issues

[0007] The present disclosure is directed to providing a washing machine including a detergent box configured to be easily inserted into a housing.

[0008] In addition, the present disclosure is directed to providing a washing machine including a detergent box configured to be smoothly inserted into a housing without a jam.

[0009] The technical tasks to be achieved in this document are not limited to the above-mentioned technical tasks, and other technical tasks not mentioned can be clearly understood by those skilled in the art from the following description.

[0010] One aspect of the present disclosure provides a washing machine, comprising: a housing; a tub in the housing; a detergent box configured to move out of the housing in a pull-out direction and into the housing in an insertion direction, and comprising a detergent storage space to store detergent to be supplied to the tub in the detergent storage space; a first elastic member on a first side of the detergent box; a second elastic member on a second side of the detergent box, wherein the first elastic member and the second elastic member are configured such that: in response to the detergent box moving into the housing in an insertion direction, the first elastic member presses the detergent box away from a first position in the housing in the insertion direction, and the second elastic member presses the detergent box away from a second position in the housing in the insertion direction, and wherein the second position is spaced apart from the first position, and in response to the detergent box moving out of the housing in the pull-out direction, the first elastic member and the second elastic member press the detergent box in the insertion direction.

[0011] One aspect of the present disclosure provides that, in response to the detergent box moving into the housing in an insertion direction, a first elastic member can press the detergent box from a first position in the insertion direction to a third position spaced apart from the second position in the insertion direction, and a second elastic member can press the detergent box from the second position to the third position in the insertion direction.

[0012] One aspect of the present disclosure provides: a first fixing bracket on a first side of a detergent box, to which a first end of a first elastic member can be fixed; and a second fixing bracket on a second side of the detergent box, to which a first end of a second elastic member can be fixed.

[0013] One aspect of the present disclosure provides: a first guide rail that can be formed in a first fixed bracket; a second guide rail that can be formed in a second fixed bracket; a first movable bracket that can be connected to a first side of a detergent box, and a second end of a first elastic member can be fixed to the first movable bracket, and the first movable bracket can move along the first guide rail of the first fixed bracket; and a second movable bracket that can be connected to a second side of the detergent box, and a second end of the second elastic member can be fixed to the second movable bracket, and the second movable bracket can move along the second guide rail of the second fixed bracket.

[0014] One aspect of the present disclosure provides: a first guide pin that can connect the first movable bracket to the detergent box so that the first movable bracket and the detergent box can move along the first guide rail; and a second guide pin that can connect the second movable bracket to the detergent box so that the second movable bracket and the detergent box can move along the second guide rail.

[0015] One aspect of the present disclosure provides: a first guide hole may be formed in a first fixing bracket so that a first guide pin may move along the first guide hole; and a second guide hole may be formed in a second fixing bracket so that a second guide pin may move along the second guide hole.

[0016] One aspect of the present disclosure provides: a first fixing hole, which is located at a front end of a first guide hole and formed at a first position, and the first fixing hole can be configured to fix the first guide pin in response to the detergent box moving from the first position in the pulling-out direction; and a second fixing hole, which is located at a front end of a second guide hole and formed at a second position, and the second fixing hole can be configured to fix the second guide pin in response to the detergent box moving from the second position in the pulling-out direction.

[0017] One aspect of the present disclosure provides that: the first elastic member may include a plurality of first elastic members, at least one of the plurality of first elastic members may be fixed to an upper portion of a first fixed bracket, and at least another of the plurality of first elastic members may be fixed to a lower portion of the first fixed bracket, and the second elastic member may include a plurality of second elastic members, at least one of the plurality of second elastic members may be fixed to an upper portion of a second fixed bracket, and at least another of the plurality of second elastic members may be fixed to a lower portion of the second fixed bracket.

[0018] One aspect of the present disclosure provides that a detergent pump may include a detergent suction component and a sealing member formed in the detergent suction component, and wherein the detergent box may further include a detergent box hole formed at a rear side of the detergent box, and wherein the detergent box may be docked to the detergent pump so that the sealing member seals the detergent box hole, and the detergent suction component may be configured to suck in detergent stored in the detergent box in response to the detergent box moving into the housing in an insertion direction.

[0019] One aspect of the present disclosure provides that the sealing member may include a plurality of sealing members formed in the detergent suction part, and the first elastic member and the second elastic member may press the detergent box so that the plurality of sealing members may be pressed within the detergent box hole.

[0020] One aspect of the present disclosure provides that a first elastic member can press a detergent box from a first position to a third position spaced rearward from the second position, a second elastic member can press the detergent box from the second position to the third position, and the third position can be a position where the detergent box can be docked to a detergent pump.

[0021] One aspect of the present disclosure provides that the first elastic member and the second elastic member may have different elastic moduli.

[0022] One aspect of the present disclosure provides that the elastic modulus of the second elastic member may be greater than the elastic modulus of the first elastic member.

[0023] One aspect of the present disclosure provides that a detergent housing may be used to accommodate a detergent box, and a first fixing bracket and a second fixing bracket may be coupled to the detergent housing.

[0024] One aspect of the present disclosure provides that the detergent box can be moved relative to the detergent housing in an insertion direction and a withdrawal direction, and a first fixing bracket can be arranged between the detergent housing and the detergent box along a first side of the detergent box, and a second fixing bracket can be arranged between the detergent housing and the detergent box along a second side of the detergent box.

[0025] One aspect of the present disclosure provides a washing machine including: a housing; a tub disposed within the housing; and a detergent supply device configured to supply detergent to an interior of the tub.

[0026] One aspect of the present disclosure provides that a detergent supply device may include: a detergent box provided to store detergent and configured to be drawn out forward from a housing or inserted backward into the housing; a detergent pump including a detergent suction component provided at a rear side of the detergent box and extending toward the detergent box to suck in detergent contained in the detergent box in response to docking of the detergent box; and a sealing member formed in the detergent suction component; and an elastic member configured to press the detergent box backward in response to drawing the detergent box out of the housing.

[0027] One aspect of the present disclosure provides that the elastic member can be configured to press the detergent box backward in response to the detergent box being withdrawn from the housing. The elastic member may include: a first elastic member disposed on a first side of the detergent box and configured to press the detergent box backward from a first position; and a second elastic member disposed on a second side of the detergent box and configured to press the detergent box from a second position spaced backward from the first position.

[0028] One aspect of the present disclosure provides a washing machine including: a housing; a tub disposed within the housing; and a detergent box configured to be drawn forward from the housing or inserted rearward into the housing.

[0029] One aspect of the present disclosure provides a washing machine, which may further include: a first elastic member disposed on a first side of a detergent box and having a first elastic modulus to press the detergent box backward from a first position while the detergent box is inserted into a housing; and a second elastic member disposed on a second side of the detergent box and having a second elastic modulus greater than the first elastic modulus to press the detergent box backward from a second position behind the first position while the detergent box is inserted into the housing.

[0030] One aspect of the present disclosure provides that a first elastic member may press the detergent box from a first position to a third position spaced rearward from the second position, and a second elastic member may press the detergent box from the second position to the third position. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a perspective view of a washing machine according to one embodiment.

[0032] Figure 2 is a side view of a washing machine according to one embodiment.

[0033] Figure 3 is an exploded perspective view of a detergent supply device included in a washing machine according to one embodiment.

[0034] Figure 4 is an exploded perspective view of a detergent supply device included in a washing machine according to one embodiment.

[0035] Figure 5 is a perspective view of a detergent pump included in a washing machine according to one embodiment.

[0036] Figure 6 is a perspective view illustrating a docking relationship between a detergent box and a detergent pump in a washing machine according to one embodiment.

[0037] Figure 7 It is shown in Figure 6 A cross-sectional view of the state before the detergent box and the detergent pump are docked.

[0038] Figure 8 It is shown Figure 7 A cross-sectional view of the state where the detergent box and the detergent pump are docked.

[0039] Fig. 9 is an exploded perspective view of some components of a detergent supply device in a washing machine according to one embodiment.

[0040] Fig.10 yes Figure 3 and Figure 4 An enlarged view of the detergent supply device shown in .

[0041] Fig.11 yes Figure 3 and Figure 4 An enlarged view of the detergent supply device shown in .

[0042] Fig.12 yes Figure 3 and Figure 4 An enlarged view of the detergent supply device shown in .

[0043] Fig.13 yes Figure 3 and Figure 4 An enlarged view of the detergent supply device shown in .

[0044] Fig.14 is a perspective view illustrating a state in which a detergent box is withdrawn from a detergent supply device in a washing machine according to one embodiment.

[0045] Fig.15 yes Fig.14 A plan view of the washing machine shown in FIG.

[0046] Fig.16 is a perspective view illustrating a state in which a detergent box is inserted into a washing machine according to one embodiment.

[0047] Fig.17 yes Fig.16 A plan view of the washing machine shown in FIG.

[0048] Fig.18 is a perspective view illustrating a state in which a detergent box is inserted into a washing machine according to one embodiment.

[0049] Fig.19 yes Fig.18 A plan view of the washing machine shown in FIG.

[0050] Figure 20 to Figure 22 is a diagram illustrating a relationship between a detergent box and an elastic member in a washing machine according to one embodiment. DETAILED DESCRIPTION

[0051] The various embodiments and the terms used therein are not intended to limit the technology disclosed herein to a specific form, and the present disclosure should be construed as including various modifications, equivalents, and / or substitutes of the corresponding embodiments.

[0052] In describing the drawings, like reference numerals may be used to denote like constituent elements.

[0053] Unless otherwise specified herein or clearly contradicted by context, a singular expression may include a plural expression.

[0054] The expressions "A or B", "at least one of A or / and B", or "one or more of A or / and B", "A, B or C", "at least one of A, B or / and C" or "one or more of A, B or / and C" etc. used in this document may include any and all combinations of one or more of the relevant listed items.

[0055] The term "and / or" includes plural combinations of related items among a plurality of related items or any one item among a plurality of related items.

[0056] Herein, expressions “first”, “second”, “the first”, “the second”, etc. may be used simply to distinguish an element from other elements, but do not limit other aspects (for example, importance or order) of the elements.

[0057] When an element (e.g., a first element) is referred to as being "(functionally or communicatively) coupled" or "connected" to another element (e.g., a second element), the first element may be connected to the second element directly (e.g., by wire), wirelessly, or through a third element.

[0058] In the present disclosure, the terms "including", "having" and the like are used to list features, numbers, steps, operations, elements, components or a combination thereof, but do not exclude the existence or addition of one or more of the features, elements, steps, operations, elements, components or a combination thereof.

[0059] When an element is referred to as being “connected,” “coupled,” “supported” or “in contact with” another element, this includes not only the case where the elements are directly connected, coupled, supported or in contact with each other, but also the case where the elements are indirectly connected, coupled, supported or in contact with each other through a third element.

[0060] Throughout the specification, when an element is “on” another element, this includes not only a case where the element is in contact with another element but also a case where another element exists between the two elements.

[0061] The washing machine according to various embodiments can perform washing, rinsing, spin drying and drying processes. The washing machine is an example of a clothes care device, and the clothes care device is a concept including a device capable of washing clothes (objects to be washed and objects to be dried), a device capable of drying clothes, and a device capable of washing and drying clothes.

[0062] The washing machine according to various embodiments may include a top-loading washing machine in which a laundry inlet for inserting or removing laundry is disposed to face upward or a front-loading washing machine in which a laundry inlet is disposed to face forward. The washing machine according to various embodiments may include a washing machine of a loading type other than the top-loading washing machine and the front-loading washing machine.

[0063] In a top-loading washing machine, the laundry may be washed using a water flow generated by a rotating body such as an agitator. In a front-loading washing machine, the laundry may be repeatedly lifted and lowered by rotating the drum to wash the laundry. The front-loading washing machine may include a dryer-combined washing machine capable of drying the laundry stored in the drum. The dryer-combined washing machine may include a hot air supply device for supplying high-temperature air into the drum and a condensing device for removing moisture from the air discharged from the drum. For example, the dryer-combined washing machine may include a heat pump device. Washing machines according to various embodiments may include washing machines using washing methods other than the above-described washing methods.

[0064] The washing machine according to various embodiments may include a housing in which various components are accommodated. The housing may be provided in the form of a box including a laundry inlet on one side thereof.

[0065] The washing machine may include a door for opening and closing an inlet for laundry. The door may be rotatably mounted to the housing by a hinge. At least a portion of the door may be transparent or translucent to allow viewing of the interior of the housing.

[0066] The washing machine may include a tub arranged in the housing to store water. The tub may be formed in a substantially cylindrical shape with a tub opening formed at one side thereof. The tub may be disposed in the housing so that the tub opening corresponds to an inlet for laundry.

[0067] The tub may be connected to the housing via a shock absorber, which may absorb vibrations generated when the drum rotates and reduce the vibrations transmitted to the housing.

[0068] A washing machine may include a drum arranged to receive laundry.

[0069] The drum may be arranged in the tub so that a drum opening arranged at one side of the drum corresponds to a laundry inlet and a tub opening. The laundry may sequentially pass through the laundry inlet, the tub opening, and the drum opening, and then be contained in the drum or taken out of the drum.

[0070] The drum may perform each operation according to washing, rinsing and / or spin drying while rotating in the tub. A plurality of through holes may be formed in the cylindrical wall of the drum to allow water stored in the tub to be introduced into the drum or drained from the drum.

[0071] The washing machine may include a driving device configured to rotate the drum. The driving device may include a driving motor and a rotating shaft for transmitting the driving force generated by the driving motor to the drum. The rotating shaft may penetrate the tub to be connected to the drum.

[0072] The driving device may perform corresponding operations according to washing, rinsing, and / or spin drying, or drying by rotating the drum in a forward or reverse direction.

[0073] The washing machine may include a water supply device configured to supply water to the tub. The water supply device may include a water supply pipe and a water supply valve disposed in the water supply pipe. The water supply pipe may be connected to an external water supply source. The water supply pipe may extend from the external water supply source to the detergent supply device and / or the tub. Water may be supplied to the tub through the detergent supply device. Alternatively, water may be supplied to the tub without passing through the detergent supply device.

[0074] The water supply valve may open or close the water supply pipe in response to an electrical signal from the controller. The water supply valve may allow or prevent water from being supplied to the tub from an external water supply source. The water supply valve may include a solenoid valve configured to open and close in response to an electrical signal.

[0075] The washing machine may include a detergent supply device configured to supply detergent to the barrel. The detergent supply device may include a manual detergent supply device that requires a user to input detergent for each washing and an automatic detergent supply device that stores a large amount of detergent and automatically inputs a predetermined amount of detergent during washing. The detergent supply device may include a detergent box for storing detergent. The detergent supply device may be configured to supply detergent to the barrel during water supply. The water supplied by the water supply pipe may be mixed with the detergent via the detergent supply device. The water mixed with the detergent may be supplied to the barrel. Detergent is used as a term including detergent for pre-washing, detergent for main washing, fabric softener, bleach, etc., and the detergent box may be divided into a storage area for pre-washing detergent, a storage area for main washing detergent, a storage area for fabric softener, and a storage area for bleach.

[0076] The washing machine may include a drain device configured to drain water contained in the tub to the outside. The drain device may include a drain pipe extending from the bottom of the tub to the outside of the housing, a drain valve provided on the drain pipe to open and close the drain pipe, and a pump provided on the drain pipe. The pump may pump water from the drain pipe to the outside of the housing.

[0077] The washing machine may include a control panel disposed on one side of the housing. The control panel may provide a user interface for interaction between a user and the washing machine. The user interface may include at least one input interface and at least one output interface.

[0078] The at least one input interface may convert sensing information received from a user into an electrical signal.

[0079] At least one input interface may include a power button, an operation button, a process selection dial (or a process selection button), and a wash / rinse / spin-dry setting button. At least one input interface may include a touch switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a knob, and / or a microphone.

[0080] The at least one output interface may visually or audibly transmit information related to the operation of the washing machine to the user.

[0081] For example, at least one output interface can transmit information related to the washing process, the operation time of the washing machine, and the washing / rinsing / spin drying settings to the user. The information related to the operation of the washing machine can be output through a screen, an indicator, or voice. At least one output interface can include a liquid crystal display (LCD) panel, a light emitting diode (LED) panel, or a speaker.

[0082] The washing machine may include a communication module for wired and / or wireless communication with an external device.

[0083] The communication module may include at least one of a short-range wireless communication module and a long-range wireless communication module.

[0084] The communication module can send data to an external device (e.g., a server, a user device, and / or a home appliance) or receive data from an external device. For example, the communication module can establish communication with a server and / or a user device and / or a home appliance, and send and receive various types of data.

[0085] For communication, the communication module can establish a direct (e.g., wired) communication channel or a wireless communication channel between external devices, and support the performance of communication through the established communication channel. According to one embodiment, the communication module may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module or a power line communication module). Among these communication modules, the corresponding communication module can communicate with the external device through a first network (e.g., a short-range wireless communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct or Infrared Data Association (IrDA)) or a second network (e.g., a long-range wireless communication network such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into one component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips).

[0086] The short-range wireless communication module may include a Bluetooth communication module, a Bluetooth low energy (BLE) communication module, a near field communication module, a WLAN (Wi-Fi) communication module and a Zigbee communication module, an infrared data association (IrDA) communication module, a Wi-Fi direct (WFD) communication module, an ultra-wideband (UWB) communication module, an Ant+ communication module, a microwave (uWave) communication module, etc., but is not limited to these.

[0087] The long-distance wireless communication module may include a communication module that performs various types of long-distance wireless communications and may include a mobile communication circuit that transmits and receives wireless signals using at least one of a base station, an external terminal, and a server on a mobile communication network.

[0088] According to one embodiment, the communication module can communicate with external devices such as servers, user devices, and other household appliances through an access point (AP). The access point (AP) can connect the local area network (LAN) to which the washing machine or the user device is connected to the wide area network (WAN) to which the server is connected. The washing machine or the user device can be connected to the server through a wide area network (WAN). The controller can control various components of the washing machine (e.g., a drive motor and a water supply valve). The controller can control various components of the washing machine according to user input to perform at least one operation including water supply, washing, rinsing, and / or spin drying. For example, the controller can control the drive motor to adjust the rotation speed of the drum or control the water supply valve of the water supply device to supply water to the barrel.

[0089] The controller may include hardware such as a CPU or a memory and software such as a control program. For example, the controller may include at least one memory for storing algorithms and program type data for controlling the operation of components in a washing machine and at least one processor configured to perform the above operations by using data stored in at least one memory. The memory and the processor may each be implemented as a separate chip. The processor may include one or more processor chips, or may include one or more processing cores. The memory may include one or more memory chips or one or more memory blocks. Alternatively, the memory and the processor may be implemented as a single chip.

[0090] Meanwhile, the terms “front”, “rear”, “left”, and “right” used in the following description are defined based on the drawings, and the shape and position of each component are not limited by the terms.

[0091] Furthermore, although the present disclosure is described based on a front-loading washing machine, the washing machine according to various embodiments may also be applied to a top-loading washing machine in which a laundry inlet for inserting or removing laundry is disposed to face upward.

[0092] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings.

[0093] Figure 1 is a perspective view of a washing machine according to one embodiment. Figure 1 1 is a perspective view showing a state in which the door 40 of the washing machine 1 is opened and the detergent box 200 is drawn out. Figure 2 is a side view of a washing machine according to one embodiment.

[0094] refer to Figure 1 The washing machine 1 is a device that uses the driving force of the motor 61 to stir the laundry, washing water and detergent put into the washing chamber 32 together to wash the laundry by mutual friction. The laundry may include clothes. When the laundry is clothes, the washing machine 1 may be called a clothes processing device.

[0095] The washing machine 1 may be classified into a drum washing machine which repeatedly lifts and lowers laundry by rotating the drum 30 to wash the laundry and an electric washing machine which washes the laundry using a water stream generated by an agitator.

[0096] Alternatively, washing machines 1 may be classified according to the direction in which laundry is put into washing chamber 32. Washing machines 1 may be classified into front loading washing machines 1 that receive laundry into washing chamber 32 from the front and top-down loading washing machines 1 that receive laundry into washing chamber 32 from the top.

[0097] Shows Figure 1 The washing machine 1 is a drum washing machine and a front-loading washing machine, but is not limited thereto. Therefore, the present disclosure can be applied to other types of washing machines.

[0098] like Figure 1 As shown in FIG. 1 , the washing machine 1 may include a housing 10 forming the exterior of the washing machine and accommodating various components therein. The housing 10 may be formed in a substantially hexahedral shape.

[0099] A control panel 16 may be provided on the front surface of the housing 10, the control panel 16 including an input 16' configured to receive an operation command from a user and a display 16" configured to display operation information of the washing machine 1. The control panel 16 may provide a user interface 16 for interaction between the user and the washing machine. The user interface 16 may include at least one input interface and at least one output interface. For example, the input 16' may be the input interface 16', and the display 16" may be the output interface 16".

[0100] A laundry inlet 12 provided to put laundry into the drum 30 may be formed in the front of the housing 10. The laundry inlet 12 formed in the front of the housing 10 may be opened and closed by a door 40. The door 40 may be rotatably mounted to the front of the housing 10 by a hinge member (not shown).

[0101] The washing machine 1 may include a detergent supply device 100. The detergent supply device 100 is a device configured to supply detergent to the inside of the tub 20 of the washing machine 1. Figure 1 On the upper right side of the washing machine 1 in the figure, but not limited to this.

[0102] refer to Figure 2 The washing machine 1 may include a tub 20 disposed in a housing 10 forming an exterior of the washing machine 1 and configured to store mixed water in which water and detergent are mixed. A drum 30 forming a washing chamber 32 to accommodate laundry may be disposed in the tub 20. In other words, it can be said that the drum 30 is disposed in the housing 10 and the washing chamber 32 is formed in the drum 30.

[0103] Tub opening and drum opening may be formed in tub 20 and drum 30 to allow laundry to be inserted or removed from the front side of housing 10. The openings of tub 20 and drum 30 may be provided to correspond to laundry inlet 12 disposed on the front surface of housing 10.

[0104] The laundry inlet 12 provided in the front of the housing 10 may be opened and closed by a door 40. The door 40 may include a door frame 41 and a door glass 42. The door glass 42 may be formed of a transparent tempered glass material to allow the user to see the inside of the housing 10.

[0105] A water supply device 14 including a water supply pipe 14' and a water supply valve 14" configured to control water supply may be disposed above tub 20. In addition, a detergent supply device 100 configured to supply detergent to the inside of tub 20 during water supply may be installed in the front upper portion of tub 20.

[0106] The detergent supply device 100 may be connected to the tub 20 through the supply pipe 17. The water supplied through the water supply pipe 14' may be mixed with the detergent via the detergent supply device 100, and the mixed water in which the water and the detergent are mixed may be supplied to the tub 20. When the detergent is liquid detergent, the water supply pipe 14' may directly supply water to the tub 20 through a separate control valve (not shown), and the liquid detergent may be supplied from the detergent supply device 100 to the inside of the tub 20 through the detergent supply pipe (not shown).

[0107] The detergent supply device 100 may be connected to the tub 20 through an air pipe 18. The air pipe 18 may be provided to allow air to flow into and / or out of the detergent supply device 100. Therefore, the air pipe 18 may prevent the pressure inside the detergent supply device 100 from being reduced.

[0108] The driving device may be provided on the rear side of the drum 30 . The driving device is a component for rotating the drum 30 , and may be configured to rotate the drum 30 by transmitting a driving force generated by the driving motor 61 to the rotating shaft 67 .

[0109] The driving motor 61 may include a fixed stator 63 and a rotor 65 configured to rotate by electromagnetically interacting with the stator 63 , and may be configured to convert electrical energy into a mechanical rotational force.

[0110] The tub 20 may store mixed water in which water and detergent are mixed, and may be formed in a substantially cylindrical shape. The tub 20 may be fixed to the inside of the housing 10. The laundry inlet 12 formed on the front surface of the housing 10 and the tub 20 may be connected through a partition 50.

[0111] A nozzle 70 configured to spray mixed water to the inside of the drum 30 by being connected to a circulation hose 71 may be provided on one side of the partition 50. The nozzle 70 may be provided to uniformly spray the mixed water onto all laundry contained in the drum 30. The circulation hose 71 may be connected to a circulation pump configured to pump the mixed water stored in the lower portion of the tub 20.

[0112] The drum 30 may rotate within the tub 20 to lift and lower laundry to perform washing. A plurality of lifters 31 may be provided within the drum 30 .

[0113] A drain device (not shown) including a drain pipe (not shown) and a drain valve (not shown) for draining water within the tub 20 may be installed under the tub 20 .

[0114] The tub 20 may be configured to be elastically supported by the housing 10 through an upper spring (not shown) and a lower shock absorber 80. That is, when vibration caused by the rotation of the drum 30 is transmitted to the tub 20 and the housing 10, the spring and the shock absorber 80 may absorb vibration energy between the tub 20 and the housing 10, thereby reducing the vibration.

[0115] Figure 3 is an exploded perspective view of a detergent supply device included in a washing machine according to one embodiment. Figure 4 is an exploded perspective view of a detergent supply device included in a washing machine according to one embodiment. Figure 3 The detergent supply device is shown disassembled when viewed from the front side. Figure 4The detergent supply device is shown disassembled when viewed from the rear side.

[0116] refer to Figure 3 and Figure 4 , the detergent supply device 100 may include a cover 110. The cover 110 may form the exterior of the detergent supply device 100 together with the detergent housing 140. The cover 110 may be coupled to an upper portion of the water supply plate 120 to seal the water supply plate 120. In other words, the cover 110 may be coupled to the water supply plate 120 to form a flow path through which wash water supplied from the water supply device 14 flows.

[0117] The cover 110 may include a wash water inlet 111 connected to the water supply device 14. Wash water may flow into the detergent supply device 100 through the wash water inlet 111.

[0118] The detergent supply device 100 may further include a water supply plate 120 coupled to the cover 110 to be located between the cover 110 and the detergent housing 140. The water supply plate 120 may include a guide partition wall 121 provided to define a flow path 120a through which wash water is allowed to flow. The water supply plate 120, together with the cover 110, may form a flow path through which wash water supplied from the water supply device 14 moves.

[0119] The water supply plate 120 may include a wash water moving hole 122 provided to discharge wash water supplied from the water supply device 14 to the space between the cover 110 and the water supply plate 120 to the water supply chamber 211. The wash water moving hole 122 may be formed to penetrate the water supply plate 120. The wash water moving hole 122 may be formed in one area of ​​the water supply plate 120 to correspond to the water supply chamber 211. In other words, the wash water moving hole 122 may be formed in one area of ​​the water supply plate 120 facing the water supply chamber 211.

[0120] The water supply plate 120 may include a through hole 123, which is provided to allow a portion of the wash water supplied from the water supply device 14 to pass therethrough, so as to prevent the detergent discharged from the detergent pump 400 into the mixing chamber 141 from remaining in the mixing chamber 141. The through hole 123 may be located upstream of the wash water moving hole 122 with respect to the direction in which the wash water supplied from the water supply device 14 flows. In other words, in the water supply plate 120, the through hole 123 may be formed adjacent to the wash water inlet 111. A portion of the wash water supplied from the water supply device 14 may be discharged to the water supply chamber 211 through the wash water moving hole 122, and the remaining portion may be discharged to the mixing chamber 141 through the through hole 123.

[0121] The detergent supply device 100 may further include a detergent housing 140 that forms the exterior of the detergent supply device 100 together with the cover 110. The detergent housing 140 may be coupled to the detergent box 200 to allow the detergent box 200 to be withdrawn.

[0122] A discharge port (not shown) may be formed on a lower portion of the detergent housing 140 to allow at least one of wash water and detergent to be discharged to the outside of the detergent supply device 100. The discharge port is connected to the supply pipe 17, and at least one of the wash water and detergent discharged through the discharge port moves into the tub 20 through the supply pipe 17. The lower portion of the detergent housing 140 may be inclined toward the discharge port to allow at least one of the wash water and detergent to be smoothly discharged through the discharge port without accumulating on the lower portion of the detergent housing 140.

[0123] The detergent housing 140 may include an inlet opening 142. The inlet opening 142 may be formed at one end of the detergent housing 140 to allow the detergent box 200 to be withdrawn from and inserted into the detergent housing 140. For example, the inlet opening 142 may be formed at the front end of the detergent housing 140. The inlet opening 142 may be a front opening 142.

[0124] The detergent housing 140 may include a step portion 146. The step portion 146 may be formed on opposite sides of the detergent housing 140. For example, the step portion 146 may protrude from the wall 140a of the detergent housing 140 to the outside of the detergent housing 140. The step portion 146 may allow the elastic member assemblies 700 and 800 to be accommodated within the detergent housing 140 and between the detergent housing 140 and the detergent box 200. The step portion 146 may be formed according to the number and shape of the elastic member assemblies 700 and 800.

[0125] The detergent housing 140 may include a fixing part 148. The fixing part 148 may be disposed within the step portion 146. The fixing part 148 may be formed adjacent to the sidewall 140a of the detergent housing 140. The fixing part 148 may protrude upward. The fixing part 148 may allow the elastic member assemblies 700 and 800 to be fixed and / or fastened to the detergent housing 140.

[0126] The detergent housing 140 may include a support 147. The support 147 may be formed at a rear end of the detergent housing 140. The support 147 may protrude toward the inside of the detergent housing 140. When the detergent box 200 is fully inserted into the detergent housing 140 (e.g., the third position), the support 147 of the detergent housing 140 may contact the support 230 of the detergent box 200.

[0127] The detergent supply device 100 may include a detergent box 200 forming a detergent storage space 201 in which detergent is stored.

[0128] The detergent box 200 may be movably mounted on the detergent housing 140. Liquid detergent may be stored in the detergent box 200. For example, the liquid detergent may include a fabric conditioner, a fabric softener, and the like.

[0129] The detergent box 200 may include a support 230. The support 230 may be formed at the rear end of the detergent box 200. The support 147 of the detergent housing 140 may protrude toward the rear of the detergent box 200. When the detergent box 200 is fully inserted into the detergent housing 140 (e.g., the third position), the support 230 of the detergent box 200 may contact the support 147 of the detergent housing 140.

[0130] The detergent supply device 100 may include elastic member assemblies 700 and 800. The elastic member assemblies 700 and 800 may be coupled to the detergent housing 140. The elastic member assemblies 700 and 800 may be accommodated in the detergent housing 140. For example, the elastic member assemblies 700 and 800 may be disposed in the step portion 146 of the detergent housing 140. The elastic member assemblies 700 and 800 may be disposed between the detergent housing 140 and the detergent box 200. For example, the elastic member assemblies 700 and 800 may be disposed between the detergent housing 140 and the detergent box 200 in the left and right directions.

[0131] The elastic member assemblies 700 and 800 may include a first elastic member assembly 700 and a second elastic member assembly 800. The first elastic member assembly 700 may be referred to as a first assembly 700, and the second elastic member assembly 800 may be referred to as a second assembly 800. The first elastic member assembly 700 may consist of only a first elastic member. The second elastic member assembly 800 may consist of only a second elastic member.

[0132] The detergent box cover 130 may be disposed above the detergent box 200 to cover the detergent box 200. The detergent box cover 130 may be formed to correspond to the upper shape of the detergent box 200. However, the detergent box cover 130 may not be formed at a position corresponding to the wash water movement hole 122 of the water supply plate 120 to allow wash water to move.

[0133] The detergent box cover 131 may be provided at the front of the detergent box cover 130 to allow detergent to be input into the detergent storage space 201. The detergent box cover 131 may be detachably coupled to the detergent box cover 130.

[0134] The detergent supply device 100 may further include a water supply chamber 211 formed in the detergent box 200 to allow the wash water passing through the wash water moving hole 122 to be introduced into the water supply chamber 211. The water supply chamber 211 may be formed by a water supply chamber frame 210 of the detergent box 200. The wash water passing through the wash water moving hole 122 may be directly introduced into the water supply chamber 211. The wash water supplied between the cover 110 and the water supply plate 120 may easily pass through the wash water moving hole 122 by gravity and flow into the water supply chamber 211.

[0135] In some cases, detergent in a solid powder form may be input to the water supply chamber 211. When the detergent in a solid powder form is input to the water supply chamber 211, the detergent in powder form may move into the mixing chamber 141 together with the wash water introduced through the wash water moving hole 122. A communication hole 212 may be formed in the detergent box 200. The communication hole 212 may allow the water supply chamber 211 and the mixing chamber 141 to communicate with each other.

[0136] The detergent supply device 100 may further include a mixing chamber 141 provided to allow at least one of wash water discharged from the water supply chamber 211 and detergent discharged from the detergent box 200 to pass through and be supplied to the tub 20. The mixing chamber 141 may be formed between the detergent box 200 and the detergent housing 140. The mixing chamber 141 may be an accommodation space 141 of the detergent housing 140 that accommodates the detergent box 200.

[0137] The detergent supply device 100 may include a detergent pump 400 configured to suck detergent from the detergent box 200 and discharge the detergent to the mixing chamber 141 .

[0138] Figure 5 is a perspective view of a detergent pump included in a washing machine according to one embodiment.

[0139] refer to Figure 5 , the detergent pump 400 may include housings 500 and 600 forming an exterior.

[0140] The housings 500 and 600 may include a front housing 500 forming a front exterior and a rear housing 600 coupled to a rear portion of the front housing 500. For ease of manufacturing, the rear housing 600 may include an intermediate housing 610 coupled to the front housing 500 at a rear portion thereof and a housing cover 640 coupled to the intermediate housing 610 at a rear portion thereof.

[0141] The front housing 500, the middle housing 610 and the housing cover 640 included in the housing may be symmetrical. For example, the detergent box cover 131 provided to input detergent into the detergent box 200 may be formed in pairs on the left and right sides, and thus the housings 500 and 600 including the corresponding configurations may be symmetrically formed on the left and right sides.

[0142] Furthermore, all configurations described below may be symmetrically formed on the left and right sides with respect to the central portion of the detergent pump 400 .

[0143] The front housing 500 may include a front housing body 510. The front housing 500 may include a detergent suction member 520 extending from the front housing body 510 toward a direction in which the detergent pump 400 is coupled to the detergent box 200 and including a suction space 521 formed therein. In other words, the detergent suction member 520 may extend forward, and the suction space 521 may be formed within the detergent suction member 520.

[0144] The front housing 500 may include a detergent discharge member (not shown) extending forward from the front housing body 510 and forming a discharge space therein.

[0145] The detergent outlet cover 501 may be provided at the front of the detergent discharge part to protect the detergent discharge part. The detergent outlet opening 502 may be provided at the front of the detergent outlet cover 501 to allow detergent to be discharged.

[0146] The detergent suction member 520 may be directly inserted into the detergent storage space 201. In other words, the detergent suction member 520 may extend forward and be disposed within the detergent storage space 201 to allow the detergent pump 400 to suck the detergent located in the detergent storage space 201 into the detergent pump 400.

[0147] The detergent suction member 520 may directly press the detergent box valve 320 in the detergent box valve module 300 to be described later. At the same time, the detergent suction member 520 may allow the detergent inlet 522 provided in the detergent box 200, through which the detergent flows. Therefore, the inflow of the detergent into the detergent pump 400 may be controlled with a simple configuration (refer to Figure 6 and Figure 7 ).

[0148] When the detergent suction component 520 presses the detergent box valve 320, the front portion of the detergent suction component 520 may press the detergent box valve 320. Therefore, it is appropriate that the detergent inlet 522 of the detergent suction component 520 is formed on the lateral side of the detergent suction component 520.

[0149] In addition, due to this configuration, a configuration configured to allow detergent to flow to the outside of the detergent box 200 and then flow again to the detergent pump 400 can be excluded. Therefore, when the detergent pump 400 is separated from the detergent box 200, leakage of the detergent can be prevented.

[0150] The sensing member 530 configured to measure the amount of detergent remaining in the detergent storage space 201 may be disposed adjacent to the detergent suction part 520. When the detergent pump 400 is coupled to the detergent box 200, the sensing member 530 may contact the detergent in the detergent storage space 201, thereby measuring the amount of detergent. Therefore, the sensing member 530 may be inserted into the detergent storage space 201.

[0151] In other words, the detergent pump 400 may include the sensing member 530 protruding or extending toward the front and located within the detergent storage space 201 to detect the amount of detergent located in the detergent storage space 201 .

[0152] To enhance strength, the intermediate housing 610 may include a supporting rib 504 disposed above the housing opening frame 613 .

[0153] The support rib 504 may include a support protrusion 145 formed at the rear of the detergent housing 140 (refer to Figure 4 ) in a position and shape corresponding to the position and shape of the detergent pump 400. When an impact is applied to the detergent pump 400, the impact may be dispersed by the support ribs 504 and the support protrusions 145.

[0154] Figure 6 is a perspective view illustrating a docking relationship between a detergent box and a detergent pump in a washing machine according to one embodiment.

[0155] refer to Figure 6 , the detergent pump 400 may be coupled to the detergent box 200 .

[0156] The detergent box 200 may be located inside the detergent housing 140. A pump opening 144 formed to correspond to the shape of the front housing 500 of the detergent pump 400 may be formed at the rear of the detergent housing 140.

[0157] A sensing member 530 protruding forward and a detergent suction part 520 protruding forward may be formed in the front of the detergent pump 400 .

[0158] The detergent pump 400 may include a first sealing member 551 disposed around the detergent suction part 520 and a second sealing member 552 disposed around the sensing member 530. The first sealing member 551 and the second sealing member 552 may be provided in plural. Each of the plurality of first sealing members 551 and the plurality of second sealing members 552 may be arranged toward the detergent box hole 220.

[0159] A first detergent box hole 221 may be formed at the rear of the detergent box 200, the first detergent box hole 221 being formed at a position corresponding to the detergent suction part 520 to allow the detergent suction part 520 to be inserted into the first detergent box hole 221. In addition, a second detergent box hole 222 may be formed at the rear of the detergent box 200, the second detergent box hole 222 being formed at a position corresponding to the sensing member 530 to allow the sensing member 530 to be inserted into the second detergent box hole 222.

[0160] Hereinafter, a process in which the detergent pump 400 is docked to the detergent box 200 will be described in detail.

[0161] Figure 7 It is shown in Figure 6 A cross-sectional view of the state before the detergent box and the detergent pump are docked. Figure 8 It is shown Figure 7 A cross-sectional view of the state where the detergent box and the detergent pump are docked.

[0162] refer to Figure 7 and Figure 8 , the detergent box 200 may move toward the detergent pump 400 .

[0163] At this time, the detergent suction part 520 may move toward the first detergent box hole 221 , and the sensing member 530 may move toward the second detergent box hole 222 .

[0164] Before the detergent pump 400 is docked to the detergent box 200, the detergent box valve 320 of the detergent box valve module 300 may receive elastic force in a direction in which the plurality of detergent box holes 220 are sealed by the valve elastic member 330. Therefore, the detergent in the detergent storage space 201 does not leak through the plurality of detergent box holes 220.

[0165] like Figure 8 As shown in FIG. 4 , when the detergent pump 400 is docked to the detergent box 200 , the detergent suction part 520 and the sensing member 530 included in the detergent pump 400 may be inserted into the interior of the detergent box 200 .

[0166] For example, when the detergent box valve 320 is pressed and moved, the sensing member 530 may be located within the detergent storage space 201 .

[0167] At this time, the detergent inlet 522 formed in the detergent suction part 520 may be disposed in the detergent storage space 201 formed in the detergent box 200. Therefore, the detergent located in the detergent storage space 201 may be introduced into the detergent pump 400 through the detergent inlet 522.

[0168] At this time, the sensing member 530 may be located in the detergent storage space 201. The sensing member 530 may measure the amount of detergent by contacting the detergent in the detergent storage space 201.

[0169] When the detergent suction member 520 presses the detergent box valve 320 forward, the detergent box valve 320 moves forward.

[0170] The detergent suction part 520 may be configured to press the detergent box valve 320 forward to allow the valve sealing member 340 to release the seal between the plurality of detergent box holes 220 and the detergent box valve 320 .

[0171] When the detergent pump 400 is docked to the detergent box 200, the detergent suction part 520 presses the detergent box valve 320 to release the seal between the plurality of detergent box holes 220 and the detergent box valve 320. At the same time, the first sealing member 551 and the second sealing member 552 disposed on the first side (e.g., the right side) can seal the first detergent box hole 221 and the second detergent box hole 222 disposed on the first side (e.g., the right side), and the first sealing member 511 and the second sealing member 552 disposed on the second side (e.g., the left side) can seal the first detergent box hole 221 and the second detergent box hole 222 disposed on the second side (e.g., the left side). Therefore, detergent leakage to the outside of the detergent box 200 can be prevented.

[0172] The sealing members 551 and 552 are shown to be disposed on the detergent suction part 520 and the sensing member 530, but the positions of the sealing members 551 and 552 are not limited thereto. The sealing members 551 and 552 may be disposed in various positions as long as the sealing members 551 and 552 are inserted into the detergent box 200 to prevent detergent leakage.

[0173] When the docking of the detergent pump 400 and the detergent box 200 is completed, the detergent may be introduced into the detergent pump 400. Thereafter, the detergent may flow into the detergent suction part 520, flow out through the detergent discharge part, move to the mixing chamber 141 in the detergent housing 140, and flow into the tub 20.

[0174] Although not shown, the detergent pump 400 and the detergent box 200 may be separated. For example, when the user draws out the detergent box 200 from the housing 10 to put detergent into the detergent box 200, the detergent pump 400 and the detergent box 200 may be separated.

[0175] Fig. 9 is an exploded perspective view of some components of a detergent supply device in a washing machine according to one embodiment.

[0176] refer to Fig. 9 , a washing machine according to one embodiment may include a detergent supply device 100 , and the detergent supply device 100 may include a detergent box 200 , a first assembly 700 , and a second assembly 800 .

[0177] The detergent supply device 100 may include a mounting portion 240 protruding outward from the wall 200 a of the detergent box 200 .

[0178] The elastic member assemblies 700 and 800 may be mounted to the mounting portion 240. For example, the guide pins 730 and 830 may be inserted into the mounting portion 240 to mount the elastic member assemblies 700 and 800 to the mounting portion 240. The mounting portions 240 may be respectively disposed on opposite sides of the detergent box 200. Therefore, the first assembly 700 and the second assembly 800 may be respectively mounted on a plurality of mounting portions 240. A plurality of mounting portions 240 may be formed on the first side and the second side of the detergent box 200. For example, the first side may be the right side of the detergent box 200, and the second side may be the left side of the detergent box 200. However, the first side and the second side are not limited to the above examples.

[0179] The mounting hole 241 and the mounting guide 242 may be formed in the mounting portion 240. For example, guide pins 730 and 830 to be described later may be mounted to the mounting hole 241. The mounting guide 242 may guide the movement of the guide pins 730 and 830 to allow the guide pins 730 and 830 to be separated from the mounting hole 241 while the detergent box 200 is withdrawn from the housing 10, and to allow the guide pins 730 and 830 to be inserted into the mounting hole 241 while the detergent box 200 is inserted into the housing 10. The mounting guide 242 may be formed to be inclined upward.

[0180] The first assembly 700 and the second assembly 800 may be mounted on the mounting portion 240. For example, on a first side of the detergent box 200, the first assembly 700 may be coupled to the mounting portion 240 formed on the first side of the detergent box 200. On a second side of the detergent box 200, the second assembly 800 may be coupled to the mounting portion 240 formed on the second side of the detergent box 200. The first assembly 700, the detergent box 200, and the second assembly 800 may be arranged in the left-right direction.

[0181] Figures 10 to 13 yes Figure 3 and Figure 4 An enlarged view of the detergent supply device shown in . Fig.10 yes Figure 3 and Figure 4 0 is an enlarged view of a portion A of the detergent supply device shown in FIG. 1 , and illustrates a first elastic member assembly. Fig.11 yes Fig.10 A perspective view of the first elastic member assembly rotated 90 degrees. Fig.12 yes Figure 3 and Figure 4 0 is an enlarged view of a portion B of the detergent supply device shown in FIG. 1 , and illustrates the second elastic member assembly. Fig.13 yes Fig.12 A perspective view of the second elastic member assembly rotated 90 degrees.

[0182] refer to Figures 10 to 13 In a washing machine according to one embodiment, a detergent supply device 100 includes elastic member assemblies 700 and 800. The elastic member assemblies 700 and 800 include a first assembly 700 and a second assembly 800.

[0183] The elastic member assemblies 700 and 800 include elastic members 740 and 840. When the detergent box 200 is withdrawn from the housing 10, the elastic members 740 and 840 may elastically press the detergent box 200 backward. The elastic members 740 and 840 may include a first elastic member 740 and a second elastic member 840.

[0184] The first elastic member 740 may be disposed on a first side of the detergent box 200. While the detergent box 200 is inserted into the housing 10, the first elastic member 740 may elastically press the detergent box 200 from the first position toward the insertion direction. When the detergent box 200 is withdrawn from the housing 10, the first elastic member 740 may be in an extended state, and the compression force of the first elastic member 740 may press the detergent box 200 backward. The first elastic member 740 may be included in the first assembly 700. The first elastic member assembly 700 may consist of only the first elastic member 740.

[0185] The first elastic member 740 may be coupled to the first moving bracket 720 and the first fixed bracket 710 , respectively. A first end 742 of the first elastic member 740 may be fixed to the first fixed bracket 710 , and a second end 741 of the first elastic member 740 may be fixed to the first moving bracket 720 .

[0186] For example, the first end 742 of the first elastic member 740 may be fixed to the elastic member coupling portion 713 of the first fixed bracket 710, and the second end 741 of the first elastic member 740 may be fixed to the elastic member coupling portion 723 of the first movable bracket 720. The elastic member coupling portion 713 of the first fixed bracket 710 may be located behind the elastic member coupling portion 723 of the first movable bracket 720.

[0187] The first end 742 of the first elastic member 740 may be a rear end, and the second end 741 of the first elastic member 740 may be a front end. However, the front end may be referred to as the first end 741 , and the rear end may be referred to as the second end 742 .

[0188] As the first movable bracket 720 moves, the first elastic member 740 may be stretched and / or compressed. The first elastic member 740 may press the detergent box 200 from the first position to the third position. The third position may be located behind the first position.

[0189] The second elastic member 840 may be disposed on the second side of the detergent box 200. While the detergent box 200 is inserted into the housing 10, the second elastic member 840 may elastically press the detergent box 200 from the second position to the insertion direction. The second position may be located behind the first position. When the detergent box 200 is withdrawn from the housing 10, the second elastic member 840 may be in an extended state, and the compression force of the second elastic member 840 may press the detergent box 200 backward. The second elastic member 840 may be included in the second assembly 800. The second elastic member assembly 800 may consist of only the second elastic member 840.

[0190] The second elastic member 840 may be coupled to the second moving bracket 820 and the second fixed bracket 810 , respectively. A first end 842 of the second elastic member 840 may be fixed to the second fixed bracket 810 , and a second end 841 of the second elastic member 840 may be fixed to the second moving bracket 820 .

[0191] For example, the first end 842 of the second elastic member 840 may be fixed to the elastic member coupling portion 813 of the second fixed bracket 810, and the second end 841 of the second elastic member 840 may be fixed to the elastic member coupling portion 823 of the second movable bracket 820. The elastic member coupling portion 813 of the second fixed bracket 810 may be located behind the elastic member coupling portion 823 of the second movable bracket 820. As the second movable bracket 820 moves, the second elastic member 840 may be stretched and / or compressed.

[0192] The first end 842 of the second elastic member 840 may be a rear end, and the second end 841 of the second elastic member 840 may be a front end. However, the front end may be referred to as the first end 841 , and the rear end may be referred to as the second end 842 .

[0193] As the second movable bracket 820 moves, the second elastic member 840 may be stretched and / or compressed. The second elastic member 840 may press the detergent box 200 from the second position to the third position. The third position may be located behind the second position.

[0194] The first position P1 may be a position where the first movable bracket 720 contacts the first stopper 717 of the first fixed bracket 710. For example, the first position P1 may be a position of the elastic member coupling portion 723 of the first movable bracket 720 and a position of the front end 741 of the first elastic member 740 coupled to the elastic member coupling portion 723 when the front contact surface 724 of the first movable bracket 720 contacts the first stopper 717 of the first fixed bracket 710 (refer to Fig.14 and Fig.15 ). While the detergent box 200 is inserted into the housing 10, the first elastic member 740 may elastically press the detergent box 200 from the first position P1.

[0195] The second position P2 may be a position where the second mobile bracket 820 contacts the second stopper 817 of the second fixed bracket 810. For example, the second position P2 may be a position of the elastic member coupling portion 823 of the second mobile bracket 820 and a position of the front end 841 of the second elastic member 840 coupled to the elastic member coupling portion 823 when the front contact surface 824 of the second mobile bracket 820 contacts the second stopper 817 of the second fixed bracket 810 (refer to Fig.16 and Fig.17 ). While the detergent box 200 is inserted into the housing 10, the second elastic member 840 may elastically press the detergent box 200 from the second position P2.

[0196] The third position P3 may be a position where the moving brackets 720 and 820 contact when the rear contact surfaces 725 and 825 of the moving brackets 720 and 820 contact the contact portions 716 and 816 of the fixed brackets 710 and 810. For example, the third position P3 may be a position of the first end of the elastic members 740 and 840 when the moving brackets 720 and 820 no longer move backward when the rear contact surface 725 of the first moving bracket 720 contacts the first contact portion 716 of the first fixed bracket 710 and the rear contact surface 825 of the second moving bracket 820 contacts the second contact portion 816 of the second fixed bracket 810 (refer to Fig.18 and Fig.19). When the detergent box 200 and the detergent pump 400 are fully coupled and / or docked, the third position P3 may be the position of the first ends of the elastic members 740 and 840. While the detergent box 200 is inserted into the housing 10, the elastic members 740 and 840 may elastically press the detergent box 200 to the third position.

[0197] The first elastic member 740 may be disposed longer than the second elastic member 840. Therefore, the first elastic member 740 may press the detergent box 200 from the first position P1 to the third position P3, and the second elastic member 840 may press the detergent box 200 from the second position P2 to the third position P3.

[0198] The second elastic member 840 may have an elastic modulus greater than that of the first elastic member 740. For example, the elastic modulus of the second elastic member 840 may be twice that of the first elastic member 740. Since the second elastic member 840 elastically presses the detergent box 200 from behind the first elastic member 740, an elastic pressing force greater than that of the first position P1 may be applied to the detergent box 200 from the second position P2.

[0199] The first elastic member 740 may allow the detergent box 200 to be automatically closed while the detergent box 200 is inserted into the housing 10. The second elastic member 840 may press the detergent box 200 from behind the first elastic member 740, and the second elastic member 840 may be used to offset the reaction force R (refer to FIG. 1 ) caused by the sealing members 551 and 552 to be described later. Figure 7 , Figure 8 and Fig. 20 ).

[0200] The first elastic member 740 and the second elastic member 840 may be provided in plurality. The plurality of first elastic members 740 may be fixed to the upper portion and the lower portion of the first fixing bracket 710, respectively. For example, at least one of the plurality of first elastic members 740 may be fixed to the upper portion of the first fixing bracket 710, and at least another of the plurality of first elastic members 740 may be fixed to the lower portion of the first fixing bracket 710 (see Figure 3 , Figure 4 and Figures 9 to 11 ). The plurality of second elastic members 840 may be fixed to the upper portion and the lower portion of the second fixing bracket 810, respectively. For example, at least one of the plurality of second elastic members 840 may be fixed to the upper portion of the second fixing bracket 810, and at least another of the plurality of second elastic members 840 may be fixed to the lower portion of the second fixing bracket 810 (see Figure 3 , Figure 4 , Fig. 9 and Figure 12 to Figure 14 ).

[0201] While the detergent box 200 is inserted into the housing 10, the detergent pump 400 and the detergent box 200 may be docked. In order to dock the detergent pump 400 and the detergent box 200, it is necessary to fully insert the sealing members 551 and 552 formed in the detergent pump 400 into the detergent box hole 220 to allow the detergent box 200 to be fully coupled to the detergent pump 400. The sealing members 551 and 552 may serve as a reaction force R (see FIG. 1 ) to resist the docking and / or coupling of the detergent pump 400 and the detergent box 200. Figure 7 , Figure 8 and Fig. 20 ).

[0202] Despite the presence of the sealing members 551 and 552 , the elastic members 740 and 840 may elastically press the detergent box 200 toward the detergent pump 400 to allow the detergent box 200 to be fully coupled and / or docked to the detergent pump 400 .

[0203] The elastic member assemblies 700 and 800 include fixing brackets 710 and 810. The fixing brackets 710 and 810 may allow the elastic member assemblies 700 and 800 to be fixed to the detergent housing 140.

[0204] The fixing brackets 710 and 810 may include a first fixing bracket 710 and a second fixing bracket 810. The first fixing bracket 710 may be longer than the second fixing bracket 810. The first fixing bracket 710 may be included in the first assembly 700, and the second fixing bracket 810 may be included in the second assembly 800.

[0205] The fixing brackets 710 and 810 may be coupled to the detergent box 200. The fixing brackets 710 and 810 may be disposed between the step portion 146 of the detergent box 200 and the wall 200a of the detergent box 200.

[0206] For example, the first fixing bracket 710 may be disposed on the first side of the detergent box 200. On the first side of the detergent box 200, the first fixing bracket 710 may be coupled to the detergent box 200. The first fixing bracket 710 may be disposed between the step portion 146 of the detergent box 200 and the first side of the detergent box 200.

[0207] For example, the second fixing bracket 810 may be disposed on the second side of the detergent box 200. On the second side of the detergent box 200, the second fixing bracket 810 may be coupled to the detergent box 200. The second fixing bracket 810 may be disposed between the step portion 146 of the detergent box 200 and the second side of the detergent box 200.

[0208] The fixing brackets 710 and 810 may include housing coupling portions 714 and 814. The housing coupling portions 714 and 814 may be provided in a plurality along the front-rear direction. The housing coupling portions 714 and 814 may be provided at the front end and the rear end of the fixing brackets 710 and 810, respectively. The housing coupling portions 714 and 814 may be screwed to the detergent housing 140. The accommodating portion 714a may be provided in the housing coupling portions 714 and 814. The accommodating portion 714a may accommodate the fixing member 148 of the detergent housing 140.

[0209] The first fixing bracket 710 may include a first housing coupling portion 714 , and the second fixing bracket 810 may include a second housing coupling portion 814 .

[0210] The fixed brackets 710 and 810 may guide the detergent box 200 and the moving brackets 720 and 820 from the first position and / or the second position to the third position while the detergent box 200 is inserted into the housing 10 .

[0211] For example, the first fixed bracket 710 may guide the detergent box 200 and the first movable bracket 720 from the first position to the third position while the detergent box 200 is inserted into the housing 10 .

[0212] For example, the second fixed bracket 810 may guide the detergent box 200 and the second movable bracket 820 from the second position to the third position while the detergent box 200 is inserted into the housing 10 .

[0213] The fixed brackets 710 and 810 may include guide rails 711 and 811. The guide rails 711 and 811 may allow the mobile brackets 720 and 820 and the detergent box 200 to move between the first position and the third position and / or between the second position and the third position. The guide rails 711 and 811 may be formed in the upper and lower parts of the fixed brackets 710 and 810, respectively. The guide rails 711 and 811 may be formed to correspond to the track components 721 and 821 of the mobile brackets 720 and 820. For example, the center of the guide rails 711 and 811 may protrude upward and / or downward. The guide rails 711 and 811 may be formed on the front and middle parts of the fixed brackets 710 and 810.

[0214] For example, the first fixed bracket 710 may include a first guide rail 711. The first fixed bracket 710 may allow the first movable bracket 720 and the detergent box 200 to move between the first position and the third position by using the first guide rail 711. The second fixed bracket 810 may include a second guide rail 811. The second fixed bracket 810 may allow the second movable bracket 820 and the detergent box 200 to move between the second position and the third position by using the second guide rail 811.

[0215] With respect to the front-rear direction, the first guide rail 711 may be longer than the second guide rail 811 .

[0216] The guide holes 712 and 812 may be formed in the fixed brackets 710 and 810. For example, the guide holes 712 and 812 may be formed in the bodies 710a and 810a of the fixed brackets 710 and 810. The guide holes 712 and 812 may provide guidance for the path along which the mobile brackets 720 and 820 move. The guide holes 712 and 812 may be formed along the front-rear direction.

[0217] For example, the first guide hole 712 may be formed in the body 710a of the first fixed bracket 710, and the second guide hole 812 may be formed in the body 810a of the second fixed bracket 810. The first guide hole 712 may guide the moving path of the first movable bracket 720, and the second guide hole 812 may guide the moving path of the second movable bracket 820. The first guide hole 712 may be longer than the second guide hole 812.

[0218] The fixing holes 712a and 812a may be formed in the fixing brackets 710 and 810. For example, the fixing holes 712a and 812a may be formed in the main bodies 710a and 810a of the fixing brackets 710 and 810. When the detergent box 200 is extracted from the housing 10 toward the front of the first position and / or the second position, the fixing holes 712a and 812a may allow the guide pins 730 and 830 to be fixed. The fixing holes 712a and 812a may be formed at the upper portion of the front end of the guide holes 712 and 812. The fixing holes 712a and 812a may be connected to the guide holes 712 and 812.

[0219] For example, the first fixing hole 712a may be formed in the body 710a of the first fixing bracket 710, and the second fixing hole 812a may be formed in the body 810a of the second fixing bracket 810. The first fixing hole 712a may be formed in front of the second fixing hole 812a. When the detergent box 200 is pulled out forward from the first position, the first fixing hole 712a may allow the first guide pin 730 to be fixed. When the detergent box 200 is pulled out forward from the second position, the second fixing hole 812a may allow the second guide pin 830 to be fixed.

[0220] In addition, the guide pins 730 and 830 may be separated from the fixing holes 712a and 812a while the detergent box 200 is extracted from the housing 10 and then inserted again. Therefore, when the guide pins 730 and 830 are separated from the fixing holes 712a and 812a, the elastic members 740 and 840 may press the detergent box 200, and the positions of the fixing holes 712a and 812a may be the first position or the second position at which the elastic members 740 and 840 start pressing the detergent box 200.

[0221] For example, the position of the first fixing hole 712 a may be the first position where the first elastic member 740 starts pressing the detergent box 200 , and the position of the second fixing hole 812 a may be the second elastic member 840 starts pressing the detergent box 200 .

[0222] The fixing brackets 710 and 810 may include elastic member coupling parts 723 and 823. The elastic member coupling parts 723 and 823 may be formed on the rear end side of the fixing brackets 710 and 810 to allow the elastic member to be fixed to the detergent housing 140 regardless of inserting or withdrawing the detergent box 200.

[0223] For example, the first fixing bracket 710 may include a first elastic member coupling portion 723 to which the first elastic member 740 is coupled, and the second fixing bracket 810 may include a second elastic member coupling portion 823 to which the second elastic member 840 is coupled.

[0224] The insertion holes 715 and 815 may be formed in the fixing brackets 710 and 810. For example, the insertion holes 715 and 815 may be formed in the bodies 710a and 810a of the fixing brackets 710 and 810. The insertion holes 715 and 815 may allow the guide pins 730 and 830 to be inserted into the guide holes 712 and 812. The insertion holes 715 and 815 may have a larger area per unit length than the area per unit length of the guide holes 712 and 812 and the fixing holes 712a and 812a.

[0225] For example, a first insertion hole 715 configured to allow the first guide pin 730 to be inserted into the first guide hole 712 may be formed in the body 710a of the first fixing bracket 710. A second insertion hole 815 configured to allow the second guide pin 830 to be inserted into the second guide hole 812 may be formed in the body 810a of the fixing bracket 810.

[0226] The fixed brackets 710 and 810 may include stoppers 717 and 817. The stoppers 717 and 817 may be formed at the front ends of the fixed brackets 710 and 810 to prevent the moving brackets 720 and 820 from moving beyond the first position and / or the second position. The stoppers 717 and 817 may protrude upward from the housing coupling portions 714 and 814.

[0227] For example, the first fixed bracket 710 may include a first stopper 717 that prevents the first movable bracket 720 from moving forward beyond the first position. The first stopper 717 may contact a front contact surface 724 of the first movable bracket 720.

[0228] For example, the second fixed bracket 810 may include a second stopper 817 that prevents the second movable bracket 820 from moving forward beyond the second position. The second stopper 817 may contact a front contact surface 824 of the second movable bracket 820.

[0229] When the fixed brackets 710 and 810 are coupled to the detergent housing 140, the first stopper 717 may be located in front of the second stopper 817. Therefore, the first moving bracket 720 may move toward the front of the second moving bracket 820.

[0230] The fixed brackets 710 and 810 may include contact portions 716 and 816. The contact portions 716 and 816 of the fixed brackets 710 and 810 may be provided at rear ends of the guide rails 711 and 811 to prevent the movable brackets 720 and 820 from moving beyond the third position.

[0231] For example, the first fixed bracket 710 may include a first contact portion 716 that prevents the first movable bracket 720 from moving backward beyond the third position. The first contact portion 716 may contact a rear contact surface 725 of the first movable bracket 720.

[0232] For example, the second fixed bracket 810 may include a second contact portion 816 that prevents the second movable bracket 820 from moving backward beyond the third position. The second contact portion 816 may contact a rear contact surface 825 of the second movable bracket 820.

[0233] The elastic member assemblies 700 and 800 include movable brackets 720 and 820. While the detergent box 200 is extracted from the housing 10 or the detergent box 200 is inserted into the housing 10, the movable brackets 720 and 820 can move in conjunction with each other. The movable brackets 720 and 820 can be coupled to the elastic members 740 and 840 to allow the elastic members 740 and 840 to be compressed or stretched. The movable brackets 720 and 820 can include a first movable bracket 720 and a second movable bracket 820. The first movable bracket may be included in the first assembly 700, and the second movable bracket 820 may be included in the second assembly 800.

[0234] The moving brackets 720 and 820 may be coupled to the detergent box 200 by guide pins 730 and 830. The guide pins 730 and 830 may be mounted on the mounting portion 240 of the detergent box 200. The moving brackets 720 and 820 may be disposed between the step portion 146 of the detergent box 200 and the wall of the detergent box 200.

[0235] For example, the first movable bracket 720 may be disposed on the first side of the detergent box 200 by the first guide pin 730. The first movable bracket 720 may be coupled to the detergent box 200 by the mounting portion 240 disposed on the first side of the detergent box 200 and the first guide pin 730. The first movable bracket 720 may be disposed between the step portion 146 of the detergent box 200 and the first side of the detergent box 200.

[0236] For example, the second moving bracket 820 may be disposed on the second side of the detergent box 200 by the second guide pin 830. The second moving bracket 820 may be coupled to the detergent box 200 by the mounting portion 240 and the second guide pin 830 disposed on the second side of the detergent box 200. The second moving bracket 820 may be disposed between the step portion 146 of the detergent box 200 and the second side of the detergent box 200.

[0237] The moving brackets 720 and 820 may guide the detergent box 200 from the first position to the third position and / or from the second position to the third position while the detergent box 200 is inserted into the housing 10 .

[0238] For example, the first moving bracket 720 may guide the detergent box 200 from the first position to the third position while the detergent box 200 is inserted into the housing 10 .

[0239] For example, the second moving bracket 820 may guide the detergent box 200 from the second position to the third position while the detergent box 200 is inserted into the housing 10 .

[0240] The movable brackets 720 and 820 may include track components 721 and 821. The track components 721 and 821 may allow the detergent box 200 to move between the first position and the third position and / or between the second position and the third position. The track components 721 and 821 may be formed on the upper and lower parts of the main bodies 720a and 820b, respectively. The track components 721 and 821 may be formed to correspond to the guide rails of the fixed brackets 710 and 810.

[0241] For example, the first movable bracket 720 may include a first track member 721. The first track member 721 may allow the detergent box 200 to move between the first position and the third position. The second movable bracket 820 may include a second track member. The second track member 821 may allow the detergent box 200 to move between the second position and the third position.

[0242] Pin holes 722 and 822 may be formed in the mobile brackets 720 and 820. For example, pin holes 722 and 822 may be formed in the main bodies 720a and 820a of the mobile brackets 720 and 820. Pin holes 722 and 822 may extend in the vertical direction. When the detergent box 200 moves, the pin holes 722 and 822 may allow the guide pins 730 and 830 to be separated from and / or mounted to the mounting portion 240. Pin holes 722 and 822 may be formed at positions corresponding to the mounting holes 241 to allow the mobile brackets 720 and 820 to be mounted to the detergent box 200.

[0243] For example, the first pin hole 722 may be formed in the body 720 a of the first moving bracket 720 , and the second pin hole 822 may be formed in the body 820 a of the second moving bracket 820 .

[0244] The grooves 722 a and 822 a may be formed in regions of the bodies 720 a and 820 a of the moving brackets 720 and 820 in which the pin holes 722 and 822 are formed.

[0245] The moving brackets 720 and 820 may include elastic member coupling portions 723 and 823. The elastic member coupling portions 723 and 823 may be formed at upper and lower ends on the front ends of the bodies 720a and 820a of the moving brackets 720 and 820 to allow the elastic members 740 and 840 to be stretched or compressed according to the insertion or withdrawal of the detergent box 200.

[0246] For example, the first moving bracket 720 may include a first elastic member coupling portion 723 to which the first elastic member 740 is coupled, and the second moving bracket 820 may include a second elastic member coupling portion 823 to which the second elastic member 840 is coupled.

[0247] The elastic member assemblies 700 and 800 include guide pins 730 and 830. The guide pins 730 and 830 may include a first guide pin 730 and a second guide pin 830. The first guide pin 730 may be included in the first assembly 700, and the second guide pin 830 may be included in the second assembly 800.

[0248] The guide pins 730 and 830 may be coupled to the detergent box 200. The guide pins 730 and 830 may be mounted on the mounting portion 240 of the detergent box 200. The guide pins 730 and 830 may be disposed between the step portion 146 of the detergent box 200 and the wall of the detergent box 200.

[0249] For example, the first guide pin 730 may be disposed on the first side of the detergent box 200. The first guide pin 730 may be mounted on the mounting portion 240 disposed on the first side of the detergent box 200. The first guide pin 730 may be disposed between the step portion 146 of the detergent box 200 and the first side of the detergent box 200.

[0250] For example, the second guide pin 830 may be disposed on the second side of the detergent box 200. The second guide pin 830 may be mounted on the mounting portion 240 disposed on the second side of the detergent box 200. The second guide pin 830 may be disposed between the step portion 146 of the detergent box 200 and the second side of the detergent box 200.

[0251] The guide pins 730 and 830 may move in conjunction with each other while the detergent box 200 is withdrawn from or inserted into the housing 10. When the detergent box 200 moves, the guide pins 730 and 830 may move along the guide holes 712 and 812 formed in the fixing brackets 710 and 810.

[0252] For example, when the detergent box 200 moves, the first guide pin 730 may move along the first guide hole 712, and when the detergent box 200 moves, the second guide pin 830 may move along the second guide hole 812. The first guide pin 730 may move between the first position and the third position, and the second guide pin 830 may move between the second position and the third position.

[0253] The guide pins 730 and 830 may be inserted into the insertion holes 715 and 815 and then disposed in the guide holes 712 and 812. When the detergent box 200 is withdrawn from the housing 10 toward the front of the first position and / or the second position, the guide pins 730 and 830 may be located in the fixing holes 712a and 812a.

[0254] For example, when the detergent box 200 is drawn out toward the front of the first position, the first guide pin 730 may be located in the first fixing hole 712a. When the detergent box 200 is drawn out toward the front of the second position, the second guide pin 830 may be located in the second fixing hole 812a.

[0255] The guide pins 730 and 830 may include first anti-separation portions 731 and 831, necks 732 and 832, second anti-separation portions 733 and 833, and insertion portions 744 and 844. The first guide pin 730 may include a first anti-separation portion 731, a neck 732, a second anti-separation portion 733, and an insertion portion 734. The second guide pin 830 may include a first anti-separation portion 831, a neck 832, a second anti-separation portion 833, and an insertion portion 834.

[0256] The first anti-separation portions 731 and 831 may be formed at one end of the guide pins 730 and 830. For example, the first anti-separation portions 731 and 831 may be provided at one end of the guide pins 730 and 830 facing the outside of the detergent box 200. The first anti-separation portions 731 and 831 may have a cross-sectional area greater than that of the necks 732 and 832. The first anti-separation portions 731 and 831 may be referred to as heads 731 and 831.

[0257] The necks 732 and 832 may be formed between the first anti-separation portions 731 and 831 and the second anti-separation portions 733 and 833. The necks 732 and 832 may allow the guide pins 730 and 830 to move along the guide holes 712 and 812. The first anti-separation portions 731 and 831 and the second anti-separation portions 733 and 833 may prevent the necks 732 and 832 from being separated from the guide holes 712 and 812. The first anti-separation portions 731 and 831 and the second anti-separation portions 733 and 833 may be disposed at opposite ends of the necks 732 and 832.

[0258] The second anti-separation portion 733 or 833 may be disposed at one end of the neck 732 or 832. The second anti-separation portion may have a cross-sectional area greater than that of the first anti-separation portion 731 and 831. When the elastic member assemblies 700 and 800 are coupled to the detergent box 200, the second anti-separation portions 733 and 833 may be disposed in the grooves 722a and 822a of the movable brackets 720 and 820. The second anti-separation portions 733 and 833 may allow the insertion portions 744 and 844 to stably move in the vertical direction in the pin holes 722 and 822 without separation.

[0259] When the elastic member assemblies 700 and 800 are coupled to the detergent box 200, the insertion portions 744 and 844 may extend from the second anti-separation portions 733 and 833 toward the detergent box 200. The insertion portions 744 and 844 may be inserted into the mounting hole 241. When the detergent box 200 is withdrawn from the housing 10 or inserted into the housing 10, the insertion portions 744 and 844 may be separated from the mounting hole 241 or mounted to the mounting hole 241.

[0260] Fig.14 is a perspective view illustrating a state in which a detergent box is withdrawn from a detergent supply device in a washing machine according to one embodiment. Fig.15 yes Fig.14 A plan view of the washing machine shown in FIG.

[0261] Fig.14 and Fig.15 The detergent box 200 is shown inserted to dock and / or couple to the detergent pump 400 .

[0262] exist Fig.14 and Fig.15 , the first fixed bracket 710 and the first movable bracket 720 may be in contact, and the second fixed bracket 810 and the second movable bracket 820 may be in contact. For example, the first stopper 717 and the front contact surface 724 of the first movable bracket 720 may be in contact, and the second stopper 817 and the front contact surface 824 of the second movable bracket 820 may be in contact.

[0263] refer to Fig.14 and Fig.15 In the washing machine according to one embodiment, the elastic member assemblies 700 and 800 may be disposed between the detergent housing 140 and the detergent box 200. For example, the elastic member assemblies 700 and 800 may be disposed between the step portion 146 of the detergent housing 140 and the wall 200a of the detergent box 200.

[0264] In a washing machine according to an embodiment, the detergent box 200 can be drawn out from the housing 10 and the detergent housing 140. The detergent box 200 can be drawn out from the housing 10 to allow the mobile brackets 720 and 820 to pass through the position where the mobile brackets 720 and 820 contact the stoppers of the fixed brackets 710 and 810. Even when the first mobile bracket 720 contacts the first stopper 717 and the first mobile bracket 720 does not move, the detergent box 200 can be further drawn out forward. For example, the detergent box 200 can pass through the position where the front contact surfaces 724 and 824 of the mobile brackets 720 and 820 contact the stoppers 717 and 817 of the fixed brackets 710 and 810, and then be drawn out from the housing 10. One end of the first elastic member 740 can be located at the first position P1.

[0265] The first position P1 may be a position where the first movable bracket 720 contacts the first stopper 717 of the first fixed bracket 710. For example, the first position may be a position of the elastic member coupling portion 723 of the first movable bracket 720 and a position of the front end 741 of the first elastic member 740 coupled to the elastic member coupling portion 723 when the front contact surface 724 of the first movable bracket 720 contacts the first stopper 717 of the first fixed bracket 710.

[0266] The first movable bracket 720 and the second movable bracket 820 cannot move further forward by the stoppers 717 and 817, and thus when the detergent box 200 moves forward, the guide pins 730 and 830 may move upward in the pin holes 722 and 822 along the mounting guide 242 toward the fixing holes 712a and 812a, and the guide pins 730 and 830 may be separated from the mounting portion 240. For example, when the detergent box 200 moves forward, the second guide pin 830 may be separated from the mounting portion 240 along the mounting guide 242 provided on the second side of the detergent box 200, and when the detergent box 200 moves further forward, the first guide pin 730 may be separated from the mounting portion 240 along the mounting guide 242 provided on the first side of the detergent box 200.

[0267] At this time, the elastic members 740 and 840 may be in a stretched state. However, since the first guide pin 730 is fixed to the first fixing hole 712a and the second guide pin 830 is fixed to the second fixing hole 812a, the elastic force of the elastic members 740 and 840 to press the detergent box 200 backward is not applied.

[0268] Fig.16 is a perspective view illustrating a state in which a detergent box is inserted into a washing machine according to one embodiment. Fig.17 yes Fig.16 A plan view of the washing machine shown in FIG.

[0269] Fig.16 and Fig.17 It is shown that the first elastic member 740 presses the detergent box 200 while the detergent box 200 is docked and / or coupled to the detergent pump 400 .

[0270] exist Fig.16 and Fig.17 , the first fixed bracket 710 may be spaced apart from the first movable bracket 720, and the second fixed bracket 810 may be in contact with the second movable bracket 820. For example, the first stopper 717 may be spaced apart from the front contact surface 724 of the first movable bracket 720, and the second stopper 817 may be in contact with the front contact surface 824 of the second movable bracket 820.

[0271] refer to Fig.16 and Fig.17 In the washing machine according to one embodiment, the detergent box 200 may be inserted into the housing 10 and the detergent housing 140. For example, the detergent box 200 may be inserted into the housing 10 to the first position P1, which is a position where the moving brackets 720 and 820 contact the stoppers 717 and 817 of the fixed brackets 710 and 810.

[0272] When the detergent box 200 moves backward and is inserted into the housing 10, the guide pins 730 and 830 located in the fixing holes 712a and 812a can be located in the mounting hole 241 again along the mounting guide 242. When the guide pins 730 and 830 move downward along the mounting guide 242, the guide pins 730 and 830 can move downward in the pin holes 722 and 822 and the fixing holes 712a and 812a. For example, when the detergent box 200 moves backward, the first guide pin 730 can be installed on the mounting portion 240 along the mounting guide 242 provided on the first side of the detergent box 200.

[0273] The first guide pin 730 may be mounted on the mounting portion 240 and separated from the first fixing hole 712a and then located in the first guide hole 712. Since the first guide pin 730 is located in the first guide hole 712 instead of the first fixing hole 712a, the first elastic member 740 may elastically press the detergent box 200 backward from the first position.

[0274] The first position P1 may be a position where the first movable bracket 720 contacts the first stopper 717 of the first fixed bracket 710. For example, the first position may be a position of the elastic member coupling portion 723 of the first movable bracket 720 and a position of the front end 741 of the first elastic member 740 coupled to the elastic member coupling portion 723 when the front contact surface 724 of the first movable bracket 720 contacts the first stopper 717 of the first fixed bracket 710.

[0275] For example, the front contact surface 724 of the first movable bracket 720 may be separated from the first stopper 717 of the first fixed bracket 710 from the first position P1, and then the first movable bracket 720 may move backward. In addition, the first elastic member 740 and the first guide pin 730 may press the detergent box 200 backward.

[0276] However, since the second guide pin 830 is separated from the mounting hole provided on the second side of the detergent box 200 and fixed to the second fixing hole 812a, the force of the second elastic member 840 to elastically press the box 200 backward is not applied. When the second guide pin 830 is located at the second position P2, for example, when one end of the second elastic member 840 is located at the second position P2, the second elastic member 840 may apply an elastic force to press the detergent box 200 backward.

[0277] The second position P2 may be a position where the second mobile bracket 820 contacts the second stopper 817 of the second fixed bracket 810. For example, the second position P2 may be a position of the elastic member coupling portion 823 of the second mobile bracket 820 and a position of the front end 841 of the second elastic member 840 coupled to the elastic member coupling portion 823 when the second mobile bracket 820 contacts the second stopper 817 of the second fixed bracket 810.

[0278] For example, the front contact surface 824 of the second movable bracket 820 may be separated from the second stopper 817 of the second fixed bracket 810 from the second position P2, and then the second movable bracket 820 may move backward. Therefore, the second elastic member 840 and the second guide pin 830 may press the detergent box 200 backward.

[0279] exist Fig.16 and Fig.17 In the embodiment, the front end 741 of the first elastic member 740 is located between the first position P1 and the second position P2.

[0280] Fig.18 is a perspective view illustrating a state in which a detergent box is inserted into a washing machine according to one embodiment. Fig.18 A portion of the detergent box and the detergent housing are shown. Fig.19 yes Fig.18 A plan view of the washing machine shown in FIG.

[0281] Fig.18 and Fig.19 It is shown that the detergent box 200 is completely docked and / or coupled to the detergent pump 400 by being pressed by the elastic members 740 and 840 .

[0282] exist Fig.18 and Fig.19 , the first stopper 717 may be spaced apart from the front contact surface 724 of the first mobile bracket 720, and the second stopper 817 may be spaced apart from the front contact surface 824 of the second mobile bracket 820. In addition, the first contact portion 716 may be spaced apart from the rear contact surface 725 of the first mobile bracket 720, and the second contact portion 816 may be spaced apart from the rear contact surface 825 of the second mobile bracket 820.

[0283] refer to Fig.18 and Fig.19 In a washing machine according to one embodiment, the detergent box 200 may be Fig.16 and Fig.17The detergent box 200 shown in FIG. 1 is further inserted into the housing 10 and the detergent housing 140. For example, the detergent box 200 may be inserted into a position where the support 230 of the detergent box 200 contacts the support 147 of the detergent housing 140. At this time, the detergent box 200 may be inserted into the housing 10 to allow one end of the elastic members 740 and 840 and the guide pins 730 and 830 to move to a third position P3 where the rear surfaces 725 and 825 of the movable brackets 720 and 820 contact the contact portions 716 and 816 of the fixed brackets 710 and 810.

[0284] When the detergent box 200 moves further backward and is inserted into the housing 10, the guide pins 730 and 830 located in the fixing holes 712a and 812a can be located in the mounting hole 241 again along the mounting guide 242. When the guide pins 730 and 830 move downward along the mounting guide 242, the guide pins 730 and 830 can move downward in the pin holes 722 and 822 and the fixing holes 712a and 812a. For example, when the detergent box 200 moves further backward, the second guide pin 830 can be installed on the mounting portion 240 along the mounting guide 242 provided on the second side of the detergent box 200.

[0285] The second guide pin 830 may be installed on the mounting portion 240, separated from the second fixing hole 812a and located in the second guide hole 812. Since the second guide pin 830 is located in the second guide hole 812 instead of the second fixing hole 812a, the second elastic member 840 may elastically press the detergent box 200 backward from the second position.

[0286] The second position P2 may be a position where the second elastic member 840 and the second guide pin 830 elastically press the detergent box 200 backward when the front contact surface 824 of the second moving bracket 820 is separated from the second stopper 817 of the second fixed bracket 810 to allow the second moving bracket 820 to move backward.

[0287] The first elastic member 740 and the second elastic member 840 may press the detergent box 200 to the third position P3 of the guide holes 712 and 812 .

[0288] The third position P3 may be a position where the moving brackets 720 and 820 contact when the rear contact surfaces 725 and 825 of the moving brackets 720 and 820 contact the contact portions 716 and 816 of the fixed brackets 710 and 810. For example, the third position P3 may be a position where the first ends 741 and 841 of the elastic members 740 and 840 do not move backward any more when the rear contact surface 725 of the first moving bracket 720 contacts the first contact portion 716 of the first fixed bracket 710 and the rear contact surface 825 of the second moving bracket 820 contacts the second contact portion 816 of the second fixed bracket 810.

[0289] Figure 20 to Figure 22 is a diagram illustrating a relationship between a detergent box and an elastic member in a washing machine according to one embodiment.

[0290] Fig. 20 1 and 2 show the elastic forces of the elastic members 740 and 840 according to the positions of the first ends 741 and 841 of the elastic members 740 and 840. Fig. 20 , the X-axis represents the length of the elastic members 740 and 840, and the Y-axis represents the elastic force. Fig. 20 The graph shown in shows a force R required for the detergent box 200 to dock and / or couple to the detergent pump 400 when the detergent box 200 is inserted.

[0291] Fig.21 7 shows the position of the first guide hole 712 according to the position of the front end 741 of the first elastic member 740 in the first assembly 700. Fig.21 , since the first moving bracket 740 is omitted, it is shown that the first elastic member 740 is not coupled to the first moving bracket 720.

[0292] Fig. 22 8 shows the position of the second guide hole 812 according to the position of the front end 841 of the second elastic member 840 in the second assembly 800. Fig. 22 , since the second moving bracket 820 is omitted, it is shown that the second elastic member 840 is not coupled to the second moving bracket 820.

[0293] refer to Figure 20 to Figure 22 , in a washing machine according to one embodiment, the first position P1 (①) can be the position of the elastic member connecting portion 723 of the first movable bracket 720 and the position of the front end 741 of the first elastic member 740 connected to the elastic member connecting portion 723 when the first movable bracket 720 contacts the first stopper 717 of the first fixed bracket 710.

[0294] In the first position P1 (①), the first guide pin 730 may be located in the first fixing hole 712 a , and the second guide pin 830 may also be located in the second fixing hole 812 a .

[0295] When the detergent box 200 is inserted into the housing 10, after the elastic members 740 and 840 have just passed through the first position P1 and moved backward, additional force may be required to move the first guide pin 730 from the first fixing hole 712a to the first guide hole 712. At this time, although the user does not press the detergent box 200, the detergent box 200 may move backward because the force of the first elastic member 740 pressing the detergent box 200 backward is applied.

[0296] In a washing machine according to one embodiment, the second position P2 (②) can be the position of the elastic member connecting portion 823 of the second movable bracket 820 and the position of the front end 841 of the second elastic member 840 connected to the elastic member connecting portion 823 when the second movable bracket 820 contacts the second stopper 817 of the second fixed bracket 810.

[0297] In the second position P2 (②), the first guide pin 730 may be located in the first guide hole 712, and the second guide pin 830 may be located in the second fixing hole 812a.

[0298] When the detergent box 200 is further inserted into the housing 10, after the elastic members 740 and 840 have just passed through the second position P2 and moved backward, additional force may be required to move the second guide pin 830 from the second fixing hole 812a to the second guide hole 812. At this time, in addition to the force of the first elastic member 740 pressing the detergent box 200 backward, the force of the second elastic member 840 pressing the detergent box 200 backward may be applied, and thus the detergent box 200 may move backward although the user does not press the detergent box 200.

[0299] In a washing machine according to one embodiment, the third position P3 (③) may be the position of the first ends 741 and 841 of the elastic members 740 and 840 when the movable brackets 720 and 820 no longer move backward when the rear contact surface 725 of the first movable bracket 720 contacts the first contact portion 716 of the first fixed bracket 710 and the rear contact surface 825 of the second movable bracket 820 contacts the second contact portion 816 of the second fixed bracket 810.

[0300] The detergent box 200 may be further inserted into the housing 10, and thus the elastic members 740 and 840 may travel to the fourth position (4) by passing through the second position P2. When the detergent pump 400 and the detergent box 200 are docked, a strong force may be required to allow the detergent suction component 520 and the sensing member 530 to be inserted into the detergent box hole 220 due to the sealing members 551 and 552 of the detergent pump 400. The sealing members 551 and 552 may serve as a reaction force R that resists the docking and / or coupling of the detergent pump 400 and the detergent box 200. For example, a friction force may be generated between the sealing members 551 and 552 and the wall 200a of the detergent box that forms the detergent box hole 220.

[0301] The fourth position ④ may be a portion where the sealing member of the detergent pump 400 and the detergent box hole 220 begin to contact each other when the detergent box 200 and the detergent pump 400 are docked. Since the plurality of sealing members 551 and 552 are provided in a direction toward the detergent box 200, the detergent box hole 220 may contact the first sealing members 551 and 552 at the fourth position ④, and due to the additional sealing members 551 and 552, the reaction force R may gradually become stronger from the fourth position ④ to the third position P3 where the detergent pump 400 and the detergent box 200 are completely docked and / or coupled.

[0302] Until the front end 741 of the first elastic member 740 and the front end 841 of the second elastic member 840 reach the third position P3, the first elastic member 740 and the second elastic member 840 can press the detergent box 200 backward, and because the pressing force of the elastic members 740 and 840 is greater than the reaction force R of the sealing members 551 and 552, the detergent box 200 and the detergent pump 400 can be completely docked and / or connected.

[0303] Therefore, when the user inserts the detergent box 200 into the housing 10 , the elastic members 740 and 840 may allow the detergent box 200 to be fully inserted into the housing 10 without excessive force as long as the user inserts the detergent box 200 to a predetermined position.

[0304] In addition, the second elastic member 840 may have an elastic modulus greater than that of the first elastic member 740, and the second elastic member 840 may elastically press the detergent box 200 from behind the first elastic member 740. Therefore, an elastic pressing force greater than that in the first position P1 may be added to the detergent box 200 from the second position P2. The second elastic member 840 may act at a relatively short distance.

[0305] For example, when the detergent box 200 is inserted into the housing 10, the first elastic member 740 may allow the detergent box 200 to be automatically inserted. The second elastic member 840 may press the detergent box 200 from the rear of the first elastic member 740 and is used to offset the reaction force R caused by the sealing members 551 and 552 to be described later. Therefore, the automatic insertion function of the detergent box 200 of the first elastic member 740 that allows the detergent box 200 to be inserted into the housing 10 may occur from the first position P1. The reaction force offsetting function of the second elastic member 840 that allows the detergent box 200 to be fully docked to the detergent pump 400 may occur from the second position P2.

[0306] Therefore, because the second elastic member 840 operates when the detergent box 200 is completely docked and / or coupled to the detergent pump 400 or is completely inserted into the housing 10, the user can smoothly and completely insert the detergent box 200 into the housing 10 without generating a sense of resistance or pinching fingers due to a strong elastic pressing force. Therefore, the convenience and user experience of the user can be improved.

[0307] According to one embodiment, a washing machine may include: a housing 10; a tub 20 disposed in the housing; and a detergent box 200 capable of storing detergent to supply the detergent to the inside of the tub and configured to move in a withdrawal direction in which the detergent box 200 is withdrawn from the housing 10 and in an insertion direction in which the detergent box 200 is inserted into the housing 10; and elastic members 740 and 840 configured to press the detergent box 200 in the insertion direction while the detergent box 200 is withdrawn from the housing 10.

[0308] In a washing machine according to one embodiment, the elastic members 740 and 840 may include: a first elastic member 740, which is disposed on a first side of the detergent box 200 and is configured to press the detergent box from a first position P1 toward an insertion direction while the detergent box is inserted into the housing 10; and a second elastic member 840, which is disposed on a second side of the detergent box 200 that is different from the first side and is configured to press the detergent box from a second position P2 spaced apart from the first position P1 relative to the insertion direction while the detergent box is inserted into the housing 10.

[0309] In a washing machine according to one embodiment, the first elastic member 740 may press the detergent box 200 from the first position to the third position P3 spaced apart from the second position relative to the insertion direction, and the second elastic member 840 may press the detergent box 200 from the second position to the third position P3.

[0310] According to one embodiment, the washing machine may further include: a first movable bracket 720, which is connected to the detergent box on the first side of the detergent box 200 and fixed to the second end 741 of the first elastic member, and the first movable bracket 720 is configured to move along the first guide rail 711; and a second movable bracket 820, which is connected to the detergent box on the second side of the detergent box 200 and fixed to the second end 841 of the second elastic member, and the second movable bracket 820 is configured to move along the second guide rail 811.

[0311] According to one embodiment, the washing machine may further include: a first movable bracket 720 connected to the detergent box on a first side of the detergent box 200 and configured to move along the first guide rail 711; and a second movable bracket 820 connected to the detergent box on a second side of the detergent box 200 and configured to move along the second guide rail 811.

[0312] In the washing machine according to one embodiment, the second end 741 of the first elastic member 740 may be fixed to the first moving bracket 720 , and the second end 841 of the second elastic member 840 may be fixed to the second moving bracket 820 .

[0313] According to one embodiment, the washing machine may further include: a first guide pin 730 configured to connect the first movable bracket 720 to the detergent box 200 to allow the first movable bracket 720 to move along the first guide rail 711; and a second guide pin 830 configured to connect the second movable bracket 820 to the detergent box 200 to allow the second movable bracket 820 to move along the second guide rail 811.

[0314] The washing machine according to one embodiment may further include a first guide hole 712 formed in the first fixing bracket 710 along the front-rear direction to allow the first guide pin 730 to move, and a second guide hole 812 formed in the second fixing bracket 810 along the front-rear direction to allow the second guide pin 830 to move.

[0315] According to one embodiment, a washing machine may include: a first fixing hole 712a, which is provided at the front end of the first guide hole 712 to fix the first guide pin 730 and is formed at a first position; and a second fixing hole 812a, which is provided at the front end of the second guide hole 812 to fix the second guide pin 830 and is formed at a second position.

[0316] In the washing machine according to one embodiment, the first elastic member 740 and the second elastic member 840 may be provided in plural in a vertical direction.

[0317] In a washing machine according to one embodiment, a detergent box hole 220 may be formed at a rear side of the detergent box 200, and a washing machine according to one embodiment may further include a detergent pump 400 disposed at a rear side of the detergent box 200 and configured to dock with the detergent box 200 when the detergent box 200 is inserted into the housing 10.

[0318] In a washing machine according to one embodiment, the detergent pump 400 may further include: a detergent suction component 520 configured to suck detergent stored in the detergent box 200 when the detergent pump 400 is docked to the detergent box 200; and a sealing member 550 formed in the detergent suction component 520 to seal the detergent box hole 220 when the detergent pump 400 is docked to the detergent box 200.

[0319] In a washing machine according to one embodiment, the sealing member 550 may be provided in plurality along the detergent suction part 520 , and the first and second elastic members 740 and 840 may press the detergent box 200 to allow the plurality of sealing members 550 to be provided in the detergent box hole 220 .

[0320] In a washing machine according to one embodiment, the first elastic member 740 may press the detergent box 200 from the first position to a third position P3 spaced apart from the second position relative to the insertion direction, and the second elastic member 840 may press the detergent box 200 from the second position to the third position P3. The third position P3 may be a position where the detergent box 200 and the detergent pump 400 are docked.

[0321] In the washing machine according to one embodiment, the first elastic member 740 and the second elastic member 840 may have elastic moduli different from each other.

[0322] In the washing machine according to one embodiment, the elastic modulus of the second elastic member 840 may be greater than that of the first elastic member 740 .

[0323] The washing machine according to one embodiment may further include a detergent housing 140 accommodating the detergent box 200 , and the first and second fixing brackets 710 and 810 are coupled to the detergent housing 140 .

[0324] In a washing machine according to one embodiment, the detergent box 200 may be configured to move in the front-rear direction relative to the housing 10 , and the first and second fixing brackets 710 and 810 may be disposed between the detergent housing 140 and the detergent box 200 in the left-right direction.

[0325] The washing machine according to one embodiment may further include: a housing 10; a tub 20 disposed within the housing 10; and a detergent supply device 100 configured to supply detergent to the inside of the tub.

[0326] The detergent supply device 100 may include: a detergent box 200, which is provided to store detergent and is configured to be drawn out from or inserted into the housing 10; a detergent pump 400, including a detergent suction component 520 and a sealing member 551, the detergent suction component 520 is provided at the rear of the detergent box 200 and extends toward the detergent box 200 to suck the detergent contained in the detergent box 200 when the detergent box 200 is docked, and the sealing member 551 is formed in the detergent suction component 520; and elastic members 740 and 840, which are configured to press the detergent box 200 backward when the detergent box 200 is drawn out from the housing 10.

[0327] In a washing machine according to one embodiment, the elastic members 740 and 840 may include: a first elastic member 740, which is disposed on a first side of the detergent box 200 and is configured to press the detergent box backward from a first position P1; and a second elastic member 840, which is disposed on a second side of the detergent box 200 and is configured to press the detergent box from a second position P2 spaced backward from the first position.

[0328] In the washing machine according to one embodiment, the first elastic member 740 may press the detergent box 200 from the first position to a third position behind the second position, and the second elastic member 840 may press the detergent box 200 from the second position to the third position.

[0329] In the washing machine according to one embodiment, while the detergent box 200 is inserted into the housing 10 , the detergent box 200 may contact the sealing member 551 at a fourth position between the second position and the third position with respect to the front-rear direction.

[0330] A washing machine according to one embodiment may include a housing 10; a tub 20 disposed within the housing 10; a detergent box 200 configured to be drawn out of or inserted into the housing 10; a first elastic member 740 disposed on a first side of the detergent box 200 and having a first elastic modulus to press the detergent box 200 backward from a first position P1 while the detergent box 200 is inserted into the housing 10; and a second elastic member 840 disposed on a second side of the detergent box 200 and having a second elastic modulus greater than the first elastic modulus to press the detergent box 200 backward from a second position P2 behind the first position P1 while the detergent box 200 is inserted into the housing 10.

[0331] In the washing machine according to one embodiment, the first elastic member 740 may press the detergent box 200 from the first position to a third position behind the second position, and the second elastic member 840 may press the detergent box 200 from the second position to the third position.

[0332] According to one embodiment, a washing machine may include: a first fixed bracket 710, which is disposed on a first side of a detergent box 200, and a first end 742 of a first elastic member 740 is fixed to the first fixed bracket 710, and a first guide rail is formed on the first fixed bracket 710; a second fixed bracket 810, which is disposed on a second side of the detergent box 200, and a first end 842 of a second elastic member 840 is fixed to the second fixed bracket 810, and a second guide rail is formed on the second fixed bracket 810; a first movable bracket 720, which is coupled to the detergent box 200 on the first side of the detergent box 200, and a second end 741 of the first elastic member 740 is fixed to the first movable bracket 720, and the first movable bracket 720 is configured to move along the first guide rail; and a second movable bracket 820, which is coupled to the detergent box 200 on the second side of the detergent box 200, and a second end 841 of the second elastic member 840 is fixed to the second movable bracket 820, and the second movable bracket 820 is configured to move along the second guide rail.

[0333] While the present disclosure has been described in detail with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and scope of the present disclosure.

Claims

1. A washing machine, comprising: shell; a barrel, located in the housing; a detergent box configured to be moved out of the housing in a withdrawal direction and into the housing in an insertion direction, and including a detergent storage space to store detergent to be supplied to the tub in the detergent storage space; a first elastic member on a first side of the detergent box; as well as a second elastic member, located on a second side of the detergent box, Wherein, the first elastic member and the second elastic member are configured such that: In response to the detergent box moving into the housing in the insertion direction, the first elastic member presses the detergent box away from a first position in the housing in the insertion direction, and the second elastic member presses the detergent box away from a second position in the housing in the insertion direction, and wherein the second position is spaced apart from the first position in the insertion direction, and In response to the detergent box being moved out of the housing in the withdrawal direction, the first elastic member and the second elastic member press the detergent box in the insertion direction.

2. The washing machine according to claim 1, wherein: In response to the detergent box moving into the housing in the insertion direction, the first elastic member presses the detergent box from the first position in the insertion direction to a third position spaced apart from the second position in the insertion direction, and the second elastic member presses the detergent box from the second position to the third position in the insertion direction.

3. The washing machine according to claim 2, further comprising: a first fixing bracket located on the first side of the detergent box, a first end of the first elastic member being fixed to the first fixing bracket; as well as A second fixing bracket is located on the second side of the detergent box, and a first end of the second elastic member is fixed to the second fixing bracket.

4. The washing machine according to claim 3, further comprising: a first guide rail formed in the first fixing bracket; a second guide rail formed in the second fixing bracket; a first movable bracket coupled to the first side of the detergent box, and a second end of the first elastic member is fixed to the first movable bracket, the first movable bracket being movable along the first guide rail of the first fixed bracket; as well as A second moving bracket is coupled to the second side of the detergent box, and a second end of the second elastic member is fixed to the second moving bracket, and the second moving bracket is movable along the second guide rail of the second fixed bracket.

5. The washing machine according to claim 4, further comprising: a first guide pin coupling the first movable bracket to the detergent box so that the first movable bracket and the detergent box can move along the first guide rail; as well as A second guide pin couples the second moving bracket to the detergent box so that the second moving bracket and the detergent box can move along the second guide rail.

6. The washing machine according to claim 5, further comprising: a first guide hole formed in the first fixing bracket so that the first guide pin can move along the first guide hole; as well as A second guide hole is formed in the second fixing bracket so that the second guide pin can move along the second guide hole.

7. The washing machine according to claim 6, further comprising: a first fixing hole at a front end of the first guide hole and formed at the first position, the first fixing hole being configured to fix the first guide pin in response to the detergent box moving from the first position in the withdrawal direction; as well as A second fixing hole is located at a front end of the second guide hole and is formed at the second position, the second fixing hole being configured to fix the second guide pin in response to the detergent box moving from the second position in the withdrawal direction.

8. The washing machine according to claim 7, wherein: The first elastic member includes a plurality of first elastic members, at least one of the plurality of first elastic members is fixed to an upper portion of the first fixing bracket, and at least another one of the plurality of first elastic members is fixed to a lower portion of the first fixing bracket, and The second elastic member includes a plurality of second elastic members, at least one of the plurality of second elastic members is fixed to an upper portion of the second fixing bracket, and at least another one of the plurality of second elastic members is fixed to a lower portion of the second fixing bracket.

9. The washing machine according to claim 1, further comprising: Detergent pump, including: Detergent suction unit, and a sealing member formed in the detergent suction part, and Wherein, the detergent box also includes: a detergent box hole formed at a rear side of the detergent box, and wherein the detergent box is docked to the detergent pump so that the sealing member seals the detergent box hole, and the detergent suction part is configured to suck detergent stored in the detergent box in response to the detergent box moving into the housing in the insertion direction.

10. The washing machine according to claim 9, wherein: The sealing member includes a plurality of sealing members provided in the detergent suction part, and The first elastic member and the second elastic member press the detergent box so that the plurality of sealing members are pressed into the detergent box hole.

11. The washing machine according to claim 10, wherein: The first elastic member presses the detergent box from the first position to a third position spaced rearward from the second position, The second elastic member presses the detergent box from the second position to the third position, and The third position is a position where the detergent box is docked to the detergent pump.

12. The washing machine according to claim 1, wherein: The first elastic member and the second elastic member have different elastic moduli.

13. The washing machine according to claim 1, wherein: The second elastic member has an elastic modulus greater than an elastic modulus of the first elastic member.

14. The washing machine according to claim 3, further comprising: A detergent housing accommodates the detergent box, and the first fixing bracket and the second fixing bracket are coupled to the detergent housing.

15. The washing machine according to claim 14, wherein: The detergent box is movable relative to the detergent housing along the insertion direction and the withdrawal direction, and The first fixing bracket is disposed between the detergent housing and the detergent box along the first side of the detergent box, and the second fixing bracket is disposed between the detergent housing and the detergent box along the second side of the detergent box.

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