Filter device and clothes treating device with same

Abstract

The filter device may be placed outside the washing machine and may be connected to a drainage device of the washing machine, the filter device including: a filter housing having a housing inlet and a housing outlet; a filter which is detachably installed in the filter housing and through which water flowing from the housing inlet to the housing outlet passes; a sensor configured to detect water flowing from the drainage device into the filter device and generate a corresponding signal; and a filter cleaning device configured to clean the filter in response to the signal generated by the sensor.

Description

Technical Field

[0001] The present disclosure relates to a filter device connectable to a washing machine and a clothes treating device having the filter device. Background Art

[0002] A washing machine is a device that washes clothes placed in a drum by using the driving force of a driving motor to stir the clothes with water and detergent to generate friction.

[0003] Regardless of the type of washing machine, operations performed by the washing machine include a washing operation of washing clothes placed in the tub by supplying detergent and water to the tub and rotating the drum, a rinsing operation of rinsing the clothes by supplying water to the tub and rotating the drum, and a dehydration operation of removing moisture from the clothes by draining water from the tub and rotating the drum.

[0004] The washing machine includes a drain device configured to drain water stored in a tub to the outside of the washing machine while performing a washing operation, a rinsing operation, and / or a dehydrating operation. The drain device may be configured to return water drained from the tub to the tub while performing a washing operation and / or a rinsing operation. Summary of the invention

[0005] Technical issues

[0006] The embodiments of the present disclosure may provide a filter device that can be easily managed and a clothes treating device having the filter device.

[0007] The embodiments of the present disclosure may provide a filter device capable of extending a filter replacement cycle and a clothes treating device having the filter device.

[0008] Embodiments of the present disclosure may provide a filter device capable of cleaning a filter by detecting water received from a washing machine, and a clothes treating device having the filter device.

[0009] The technical objectives of the present disclosure are not limited to those described above, and other technical objectives not described herein will also be clearly understood by ordinary technicians in the technical field to which the present disclosure belongs from the following detailed description.

[0010] Technical Solution

[0011] According to an embodiment of the present disclosure, a filter device can be installed outside a washing machine and can be connected to a drainage device of the washing machine, and the filter device includes: a filter housing, including a housing inlet and a housing outlet; a filter, which can be detachably installed in the filter housing, and water flowing from the housing inlet to the housing outlet passes through the filter; a sensor, configured to detect water entering the filter device from the drainage device and generate a corresponding signal; and a filter cleaning device, configured to clean the filter according to the signal generated by the sensor.

[0012] According to an embodiment of the present disclosure, in a method for controlling a filter device, the filter device may be placed outside a washing machine, may be connected to a drainage device of the washing machine, and includes a filter, a filter cleaning device having a cleaning drive configured to clean the filter, and at least one sensor for detecting water entering the filter device. The method for controlling the filter device may include controlling the cleaning drive of the filter cleaning device based on a signal detected by the at least one sensor.

[0013] According to an embodiment of the present disclosure, a laundry treatment device may include: a washing machine including a washing machine housing, a tub disposed in the washing machine housing, and a drainage device configured to discharge water stored in the tub to the outside of the washing machine housing; and a filter device disposed outside the washing machine housing and connectable to the drainage device of the washing machine. The filter device may include a filter housing, a filter detachably mounted in the filter housing, a filter cleaning device having a cleaning drive to clean the filter, a sensor configured to detect water entering the filter device, and a controller that controls the operation of the filter cleaning device based on information obtained by the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A clothes treating apparatus according to an embodiment of the present disclosure is shown.

[0015] Figure 2 The embodiment according to the present disclosure is shown Figure 1 A cross section of a washing machine is shown.

[0016] Figure 3 is a control block diagram of a washing machine according to an embodiment of the present disclosure.

[0017] Figure 4 A clothes treating apparatus according to an embodiment of the present disclosure is shown.

[0018] Figure 5 The embodiment according to the present disclosure is shown Figure 4 A cross section of a washing machine is shown.

[0019] Figure 6 The embodiment according to the present disclosure is shown Figure 1 and Figure 3 The interior of the filter device is shown in FIG.

[0020] Figure 7 According to the embodiment of the present disclosure Figure 6 Exploded view of the filter assembly shown.

[0021] Figure 8 In with Figure 7 The directions of the different directions show the embodiment of the present disclosure. Figure 7 Filter assembly shown.

[0022] Fig. 9 The embodiment according to the present disclosure is shown Figure 6 A cross section of a filter arrangement is shown.

[0023] Fig.10 A filter device including a first sensor according to an embodiment of the present disclosure is shown.

[0024] Fig.11 According to the embodiment of the present disclosure Fig.10 A top view of the filter device is shown.

[0025] Fig.12 A cross section of a filter device including a second sensor according to an embodiment of the present disclosure is shown.

[0026] Fig.13 It shows that the second sensor according to the embodiment of the present disclosure has been Fig.12 The filter device is shown in a state where it receives water and moves.

[0027] Fig.14 A cross section of a filter device including a third sensor according to an embodiment of the present disclosure is shown.

[0028] Fig.15 A filter device including a fourth sensor according to an embodiment of the present disclosure is shown.

[0029] Fig.16 The embodiment according to the present disclosure is shown Fig.15 A cross section of a filter arrangement is shown.

[0030] Fig.17 A cross section of a filter device according to an embodiment of the present disclosure is shown, wherein Fig.16 The fourth sensor shown is arranged at Fig.16 At different positions than shown in .

[0031] Fig.18 A fourth sensor according to an embodiment of the present disclosure is shown.

[0032] Fig.19 A side surface of a filter device including a fifth sensor according to an embodiment of the present disclosure is shown.

[0033] Fig. 20 A filter device according to an embodiment of the present disclosure is shown.

[0034] Fig.21 is a control block diagram of a filter device according to an embodiment of the present disclosure.

[0035] Fig. 22is a flowchart illustrating a method of controlling a filter device according to an embodiment of the present disclosure.

[0036] Fig.23 is a flowchart illustrating a method of controlling a filter device according to an embodiment of the present disclosure.

[0037] Fig.24 An example of the operation of the filter device according to the embodiment of the present disclosure is shown.

[0038] Fig.25 An example of the operation of the filter device according to the embodiment of the present disclosure is shown.

[0039] Fig.26 An example of the operation of the filter device according to the embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0040] It should be understood that the various embodiments of this document and the terms used therein are not intended to limit the technology described herein to specific embodiments, but include various modifications, equivalents, and / or alternatives of the embodiments.

[0041] In conjunction with the description of the drawings, like reference numerals may be used for similar or related components.

[0042] It is to be understood that nouns corresponding to items in the singular may include the item or items in the plurality unless the relevant context clearly indicates otherwise.

[0043] As used herein, phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B or C" may include any or all possible combinations of the items listed with the corresponding phrases in these phrases.

[0044] The term "and / or" includes all combinations of any one or more of the associated listed items.

[0045] As used herein, terms such as “first” and “second” may be used to simply distinguish a corresponding component from another, and do not limit the components in other aspects (eg, importance or order).

[0046] It is to be understood that if a component (e.g., a first component) is referred to as being “coupled”, “coupled” to, “connected” to, “connected” to, or “connected” to another component (e.g., the second component), whether or not the term “operably” or “communicatively” is used, it means that the component can be coupled to the other component directly (e.g., by wire), wirelessly, or through a third element.

[0047] It is to be understood that terms such as “including” or “having” are intended to indicate the presence of the features, quantities, steps, operations, components, parts, or a combination thereof disclosed in the specification, and are not intended to exclude the possibility that one or more other features, quantities, steps, operations, components, parts, or a combination thereof may exist or may be added.

[0048] It will be understood that if a component is referred to as being “coupled”, “coupled to”, “supported on” or “in contact with” another component, this means that the component may be coupled to the other component directly or indirectly through a third component.

[0049] It will also be understood that when an element is referred to as being “on” or “over” another element, it can be directly on the other element or intervening elements may also be present.

[0050] The washing machine according to various embodiments of the present disclosure may perform a washing operation, a rinsing operation, a draining operation, and a dehydration operation. The washing machine may be a washing machine with a drying function, which can dry the dehydrated clothes. The washing machine may be an example of a clothes treatment device. The clothes treatment device may include a device for washing clothes (articles to be washed and articles to be dried), a device for drying clothes, and a device for washing and drying clothes.

[0051] The washing machine according to various embodiments of the present disclosure may include a top-loading washing machine, wherein an inlet for putting in or taking out clothes of the top-loading washing machine is provided upward, or a front-loading washing machine, wherein an inlet for putting in or taking out clothes of the front-loading washing machine is provided forward. The washing machine according to various embodiments of the present disclosure may also include other types of washing machines in addition to the top-loading washing machine and the front-loading washing machine.

[0052] A top-loading washing machine may wash clothes with a water flow generated by a rotating body such as a pulsator. A front-loading washing machine may repeatedly lift and put down clothes for washing by rotating a drum. A front-loading washing machine may include a lift for lifting clothes. A front-loading washing machine may include a washing machine with a drying function, which is capable of drying clothes contained in a drum. A washing machine with a drying function may include a heating device for high-temperature air. A washing machine with a drying function may also include a condensing device for drying air. For example, a washing machine with a drying function may include a heat pump. The washing machine according to various embodiments of the present disclosure may also include a washing machine using another washing method in addition to the above-mentioned washing method.

[0053] Hereinafter, a washing machine according to various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0054] Figure 1 A clothes treating apparatus according to an embodiment of the present disclosure is shown, and the clothes treating apparatus is a washing machine in this embodiment. Figure 2 Show Figure 1 A cross section of a washing machine is shown.

[0055] like Figure 1 and Figure 2 As shown, the laundry treatment device 1, in this embodiment a washing machine, may include a washing machine housing 11 for accommodating various components therein. The washing machine housing 11 may form the appearance of the washing machine 10. The washing machine housing 11 may be in the shape of a partially opened box.

[0056] The washing machine housing 11 may include a housing opening 12 that allows access to the interior of the drum 30. The housing opening 12 may be opened substantially toward a forward direction.

[0057] The washing machine 10 may include a door 13 for opening or closing a housing opening 12 provided in the washing machine housing 11. The door 13 may be rotatably mounted on the washing machine housing 11 by a hinge 14. At least a portion of the door 13 may be transparent or translucent to show the interior of the washing machine housing 11.

[0058] The washing machine 10 may include a tub 20 disposed inside the washing machine housing 11 for storing water. The tub 20 may be disposed inside the washing machine housing 11. The tub 20 may include a tub opening 22 corresponding to the housing opening 12. The tub opening 22 may be opened substantially toward the front direction. The tub 20 may be supported inside the washing machine housing 11. The tub 20 may have a substantially cylindrical shape with one side open.

[0059] The tub 20 may be elastically supported from the washing machine housing 11 by the shock absorber 80. The shock absorber 80 may connect the tub 20 to the washing machine housing 11. When vibration generated according to the rotation of the drum 30 is transmitted to the tub 20 and / or the washing machine housing 11, the shock absorber 80 may absorb vibration energy between the tub 20 and the washing machine housing 11 to reduce vibration.

[0060] The washing machine 10 may include a drum 30 for accommodating laundry. The drum 30 may be rotatably disposed within the tub 20. The drum 30 may perform washing, rinsing, and / or dehydration while rotating within the tub 20. The drum 30 may include a through hole 34 connecting the inner space of the drum 30 with the inner space of the tub 20. The drum 30 may have a substantially cylindrical shape with one side open. On the inner circumferential surface of the drum 30, at least one lifting device 35 may be installed to raise and lower the laundry according to the rotation of the drum 30.

[0061] The drum 30 may include a drum opening 32 corresponding to the housing opening 12 and the tub opening 22. Clothes may be put into or taken out of the drum 30 through the housing opening 12, the tub opening 22, and the drum opening 32.

[0062] The washing machine 10 may include a washing machine driver 40 configured to rotate the drum 30. The washing machine driver 40 may include a driving motor 41 and a rotating shaft 42 for transmitting a driving force generated in the driving motor 41 to the drum 30. The rotating shaft 42 may pass through the tub 20 and be connected to the drum 30.

[0063] The washing machine may be classified into a direct drive type in which a rotation shaft 41 is directly connected to a driving motor 412 to rotate the drum 30 and an indirect drive type in which a pulley 43 is connected between the driving motor 41 and the rotation shaft 42 to drive the drum 30 .

[0064] The washing machine 10 according to the embodiment of the present disclosure may be of an indirect drive type, although not limited thereto. However, the washing machine 10 may be of a direct drive type.

[0065] One end of the rotating shaft 42 may be connected to the drum 30, and the other end may be connected to the pulley 43 to receive power from the driving motor 41. At the rotating shaft 42 of the driving motor 41, a motor pulley 41a may be formed. A transmission belt 44 may be provided between the motor pulley 41a and the pulley 43 so that the rotating shaft 42 is driven by the transmission belt 44.

[0066] At the rear of the tub 20, a bearing housing 45 may be installed to rotatably support the rotating shaft 42. The bearing housing 45 may be made of an aluminum alloy. The bearing housing 45 may be inserted into the rear of the tub 20 when the tub 20 is injection molded.

[0067] The washing machine driver 40 may rotate the drum 30 forward or backward to perform a washing operation, a rinsing operation, and / or a dehydrating operation or a drying operation.

[0068] The washing machine 10 may include a water supply device 50. The water supply device 50 may supply water to the tub 20. The water supply device 50 may be disposed above the tub 20. The water supply device 50 may include a water supply pipe 51 and a water supply valve 56 disposed in the water supply pipe 51. The water supply pipe 51 may be connected to an external water supply source. The water supply pipe 51 may extend from the external water supply source to the detergent supply device 60 and / or the tub 20. Water may be supplied to the tub 20 through the detergent supply device 60. Water may also be directly supplied to the tub 20 without passing through the detergent supply device 60.

[0069] The water supply valve 56 may open or close the water supply pipe 51 in response to an electrical signal from the controller 90. The water supply valve 56 may allow or block water supply from an external water supply source to the tub 20. The water supply valve 56 may include, for example, a solenoid valve that opens or closes in response to an electrical signal.

[0070] The washing machine 10 may include a detergent supply device 60 configured to supply detergent to the tub 20. The detergent supply device 60 may supply detergent to the inside of the tub 20 during the water supply process. The water supplied through the water supply pipe 51 may be mixed with the detergent by the detergent supply device 60. The water mixed with the detergent may be supplied to the inside of the tub 20. In addition to the washing detergent, the detergent may also include a softener, a deodorant, a bactericide, or an air freshener. The detergent supply device 60 may be connected to the tub 20 through a connecting pipe 61.

[0071] The washing machine 10 may include a drain device 70. The drain device 70 may drain the water contained in the tub 20 to the outside. The drain device 70 may include a drain pump 73 for draining the water contained in the tub 20 to the outside of the washing machine housing 11, a connection hose 71 connecting the drain pump 73 and the tub 20 so that the water stored in the tub 20 flows to the drain pump 73, and a drain hose 74 for guiding the water pumped by the drain pump 73 to the outside of the washing machine housing 11. The drain device 70 may include a drain valve 72 arranged in the connection hose 71 to open or close the connection hose 71.

[0072] The washing machine 10 may provide a user interface 15 for interaction with a user.

[0073] The washing machine 10 may include at least one user interface 15. The user interface 15 may include at least one input interface 16 and / or at least one output interface 17.

[0074] The laundry treating apparatus 1 may include a filter device 100, which may be connected to the drain device 70 of the washing machine 10. The filter device 100 may be disposed outside the washing machine 10. The filter device 100 may filter foreign matter from water discharged from the washing machine 10. The filter device 100 may filter foreign matter of a size smaller than that of foreign matter that can be filtered in the washing machine 10. For example, the filter device 100 may filter foreign matter of a size smaller than that of foreign matter that can be filtered in the drain device 70 of the washing machine 10.

[0075] Figure 3 is a control block diagram of a washing machine according to an embodiment of the present disclosure.

[0076] According to an embodiment of the present disclosure, the washing machine 10 may include a user interface 15 , a driver 40 , a water supply device 50 , a drainage device 70 , a sensor device 95 , a communication module 96 , and a controller 90 .

[0077] The user interface 15 may provide a user interface for interaction with a user.

[0078] For example, the user interface 15 may include at least one input interface 16. For example, the user interface 15 may include at least one output interface 17.

[0079] The at least one input interface 16 may convert sensory information received from a user into an electrical signal.

[0080] At least one input interface 16 may include a power button, an operation button, a process selection knob (or a process selection button), and a wash / rinse / spin setting button. At least one input interface 16 may include, for example, a tactile switch, a push button switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a rocker knob, and / or a microphone.

[0081] The at least one output interface 17 may generate sensory information and transmit various data related to the operation of the washing machine 10 to the user.

[0082] For example, at least one output interface 17 may transmit information related to a washing course and operation time or a washing setting / rinsing setting / spinning setting of the washing machine 10 to a user. Information related to the operation of the washing machine 10 may be output through a screen, an indicator light, a voice, etc. The at least one output interface 17 may include, for example, a liquid crystal display (LCD) panel, a light emitting diode (LED) panel, a speaker, etc.

[0083] The driver 40 may include a driving motor 41 for providing a driving force for the rotating drum 30. The driver 40 may operate based on a control signal from the controller 90.

[0084] The water supply device 50 may include a water supply valve 56 for opening or closing a water supply pipe 51 extending from an external water supply source to the detergent supply device 60 and / or the tub 20. The water supply valve 56 may be opened or closed based on a control signal from the controller 90.

[0085] The drain device 70 may include a drain pump 73 for draining water contained in the tub 20 to the outside of the washing machine housing 11. The drain pump 73 may operate based on a control signal from the controller 90.

[0086] The sensor device 95 may include at least one sensor for acquiring information related to an operating state of the washing machine 10 .

[0087] For example, the sensor device 95 may include at least one of: a water level sensor for detecting the water level of the barrel 20, a sensor for detecting the operating status of the driver 40, a flow sensor for detecting the flow rate of water entering the barrel 20 through the water supply device 50, or a sensor for detecting the operating status of the drainage device 70.

[0088] The sensor for detecting the operating state of the driver 40 may include, for example, a current sensor for measuring a driving current applied to the driving motor 41 , although not limited thereto.

[0089] The sensor for detecting the operating state of the drain device 70 may include, for example, a current sensor for measuring a driving current applied to the drain pump 73 , although not limited thereto.

[0090] The washing machine 10 may include a communication module 96 for wired or wireless communication with an external device.

[0091] The communication module 96 may include at least one of a short-range wireless communication module and a long-range wireless communication module.

[0092] The communication module 96 may transmit data to an external device (e.g., a server, a user device, a home appliance, and / or the filter device 100), or receive data from an external device. For example, the communication module 96 may establish communication with a server and / or a user device and / or a home appliance, and transmit / receive various data to / from the server and / or the user device and / or the home appliance.

[0093] To this end, the communication module 96 can support establishing a direct (e.g., wired) communication channel or a wireless communication channel with an external device, and communicate through the established communication channel. According to an embodiment of the present disclosure, the communication module 96 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). The corresponding communication module among the communication modules can communicate with an external electronic device through a first network (e.g., a short-range wireless communication network, such as Bluetooth, WiFi 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 fifth generation (5G) network, a next-generation communication network, the Internet, or a computer network (e.g., a local area network or a wide area network (WAN)). Various communication modules can be integrated into a single component (e.g., a single chip) or implemented with multiple separate components (e.g., multiple chips).

[0094] The short-range wireless communication module may include a Bluetooth communication module, a Bluetooth low energy (BLE) communication module, a near field communication (NFC) module, a wireless local area network (WLAN; WiFi) communication module, 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., although not limited thereto.

[0095] The long-distance wireless communication module may include a communication module that performs various long-distance communications and may include a mobile communicator that can transmit / receive wireless signals to / from at least one of a base station, an external terminal, or a server on a mobile communication network.

[0096] According to an embodiment of the present disclosure, the communication module can communicate with external devices such as a server, a user device, another household appliance, etc. through a surrounding access point (AP). The AP can connect the local area network (LAN) to which the washing machine 10 or the user device is connected to the WAN to which the server is connected. The washing machine 10 or the user device can be connected to the server through the WAN. The controller 90 can control various components of the washing machine 10 (for example, the driver 40 or the water supply device 50). The controller 90 can control various components of the washing machine 10 according to user input to perform at least one operation, including water supply, washing, rinsing and / or dehydration. For example, the controller 90 can control the drive motor 41 to adjust the rotation speed of the drum 30, or control the water supply valve 56 of the water supply device 50 to supply water to the barrel 20.

[0097] The controller 90 may include hardware such as a central processing unit (CPU) or a memory, and software such as a control program. For example, the controller 90 may include at least one memory 92 and at least one processor 91, the memory 92 storing data for controlling the operation of components in the washing machine 10 in the form of an algorithm or program, and the processor 91 performing the above operations using the data stored in the at least one memory 92. The memory 92 and the processor 91 may be implemented by separate chips. The processor 91 may include one, two or more processor chips or one, two or more processing cores. The memory 92 may include one, two or more memory chips or one, two or more memory blocks. In addition, the memory 92 and the processor 91 may also be implemented by a single chip.

[0098] Figure 4 A clothes treating apparatus according to an embodiment of the present disclosure is shown, and the clothes treating apparatus is a washing machine in this embodiment. Figure 5 Show Figure 4 A cross section of a washing machine is shown.

[0099] like Figure 4 and Figure 5 As shown, the laundry treatment device 1a, in this embodiment, is a washing machine 10a, and may include a washing machine housing 11a for accommodating various components therein. The washing machine housing 11a may form the appearance of the washing machine 10a. The washing machine housing 11a may be in the shape of a partially opened box.

[0100] The washing machine housing 11a may include a housing opening 12a that allows access to the interior of the drum 30a. The housing opening 12a may be opened substantially toward a forward direction.

[0101] The washing machine 10a may include a door 13a for opening or closing a housing opening 12a provided in a washing machine housing 11a. The door 13a may be rotatably mounted on the washing machine housing 11a via a hinge. At least a portion of the door 13a may be transparent or translucent to display the interior of the washing machine housing 11a.

[0102] The washing machine 10a may include a tub 20a disposed inside the washing machine housing 11a to store water. The tub 20a may be disposed inside the washing machine housing 11a. The tub 20a may include a tub opening 22a corresponding to the housing opening 12a. The tub opening 22a may be substantially open upward. The tub 20a may be supported inside the washing machine housing 11a. The tub 20a may have a substantially cylindrical shape with one side open.

[0103] The tub 20a may be elastically supported from the washing machine housing 11a by the shock absorber 80a. The shock absorber 80a may connect the tub 20a to the washing machine housing 11a. When the vibration generated according to the rotation of the drum 30a is transmitted to the tub 20a and / or the washing machine housing 11a, the shock absorber 80a may absorb the vibration energy between the tub 20a and the washing machine housing 11a to reduce the vibration.

[0104] The washing machine 10a may include a drum 30a for accommodating laundry. The drum 30a may be rotatably disposed in the tub 20a. The drum 30a may perform washing, rinsing and / or dehydration while rotating in the tub 20a. The drum 30a may include a through hole 34a connecting the inner space of the drum 30a and the inner space of the tub 20a. The drum 30a may have a substantially cylindrical shape with one side open.

[0105] On the upper portion of the drum 30a, a balancing unit 36a for releasing the load imbalance caused by the clothes may be installed. The balancing unit 36a may include a shell having a circular channel and a mass body of a ball or fluid that can move in the channel, and when the ball or fluid moves according to the rotation of the drum 30a, the load imbalance of the drum 30a may be released.

[0106] The agitator 37a may be rotatably provided at the lower portion of the drum 30a to generate a water flow for washing. The laundry may be washed by the water flow for washing generated by the agitator 37a.

[0107] The drum 30a may include a drum opening 32a corresponding to the housing opening 12a and the tub opening 22a. Clothes may be put into or taken out of the drum 30a through the housing opening 12a, the tub opening 22a, and the drum opening 32a.

[0108] The washing machine 10a may include a washing machine driver 40a configured to rotate the drum 30a and the agitator 37a. The washing machine driver 40a may include a driving motor 41a and a shafting for transmitting a driving force generated in the driving motor 41a to the drum 30a and the agitator 37a.

[0109] The driving motor 41 a may include a fixed stator 48 a and a rotor 49 a that rotates by electromagnetic interaction with the stator 48 a .

[0110] The shaft system may include a dehydration shaft 47a, a washing shaft 46a and a clutch device 45a, wherein the dehydration shaft 47a is used to transmit the driving force of the drive motor 41a to the drum 30a, the washing shaft 46a is used to transmit the driving force of the drive motor 41a to the agitator 37a, and the clutch device 45a is used to connect / disconnect the drive motor 41a and the dehydration shaft 47a.

[0111] The dehydration shaft 47a may have a cavity, and the washing shaft 46a may be disposed in the cavity of the dehydration shaft 47a. The washing shaft 46a may be connected to a rotor 49a of a drive motor 46a, and the dehydration shaft 47a may be connected to or disconnected from the rotor 49a of the drive motor 41a via a clutch device 45a.

[0112] When clutch device 45a disconnects dehydration shaft 47a from drive motor 41a, power can be transmitted to washing shaft 46a only, and only agitator 37a can rotate. When clutch device 45a connects dehydration shaft 47a with drive motor 41a, power can be transmitted to both dehydration shaft 47a and washing shaft 46a, and drum 30a and agitator 37a can rotate simultaneously.

[0113] When only the agitator 37a rotates, a wash water flow can be generated by the rotation of the agitator 37a, and the clothes can be rotated under the action of the wash water flow to rub against the drum 30a, so that the clothes can be washed. When the drum 30a and the agitator 37a rotate simultaneously, the clothes contained in the drum 30a can be rotated, and water can be removed from the clothes by centrifugal force, so that the clothes can be dehydrated.

[0114] Washing machine 10a may include water supply device 50a. Water supply device 50a may supply water to tub 20a. Water supply device 50a may be placed above tub 20a. Water supply device 50a 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 detergent supply device 60a and / or tub 20a. Water may be supplied to tub 20a via detergent supply device 60a. Water may be directly supplied to tub 20a without passing through detergent supply device 60a.

[0115] 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 block water supply from an external water supply source to the tub 20. The water supply valve may include, for example, a solenoid valve that opens or closes in response to an electrical signal.

[0116] The washing machine 10a may include a detergent supply device 60a configured to supply detergent to the tub 20a. The detergent supply device 60a may supply detergent to the inside of the tub 20a during the water supply process. The water supplied through the water supply pipe may be mixed with the detergent by the detergent supply device 60a. The water mixed with the detergent may be supplied to the inside of the tub 20a. In addition to the washing detergent, the detergent may also include a softener, a deodorant, a disinfectant, or an air freshener for a dryer.

[0117] The washing machine 10a may include a drain device 70a. The drain device 70a may be configured to drain the water contained in the tub 20a to the outside. In the lower portion of the tub 20a, a drain opening 21a may be formed for draining the water stored in the tub 20a to the outside of the tub 20a. A drain hose 74a may be connected to the drain opening 21a, and a drain valve 72a for opening or closing the drain hose 74a may be provided in the drain hose 74a.

[0118] The washing machine 10a may provide a user interface 15a for enabling a user to interact with the washing machine 10a.

[0119] The washing machine 10a may include at least one user interface 15a. The user interface 15a may include at least one input interface 16a and / or at least one output interface 17a.

[0120] The at least one input interface 16a may convert sensory information received from a user into an electrical signal.

[0121] At least one input interface 16a may include a power button, an operation button, a process selection knob (or a process selection button), and a wash / rinse / spin setting button. At least one input interface 16a may include, for example, a tactile switch, a push button, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a rocker knob, and / or a microphone.

[0122] The at least one output interface 17a may transmit various data related to the operation of the washing machine 10a to the user by generating sensory information.

[0123] For example, at least one output interface 17a can transmit information related to the washing process and operation time or washing setting / rinsing setting / spinning setting of the washing machine 10a to the user. Information related to the operation of the washing machine 10a can be output through a screen, an indicator light, a voice, etc. The at least one output interface 17a may include, for example, a liquid crystal panel, a light emitting diode panel, a speaker, etc.

[0124] The laundry treating apparatus 1a may include Figure 1 and Figure 2 The filter device 100 is the same as the filter device 100 shown in the figure. For example, the filter device 100 according to the embodiment of the present disclosure can be connected to a front-loading washing machine or a top-loading washing machine. The filter device 100 can be connected to the drain device 70a of the washing machine 10a. The filter device 100 can be set outside the washing machine 10a. The filter device 100 can filter foreign matter from the water discharged from the washing machine 10a. The filter device 100 can filter foreign matter that is smaller in size than the foreign matter that can be filtered in the washing machine 10a. For example, the filter device 100 can filter foreign matter that is smaller in size than the foreign matter that can be filtered in the drain device 70a of the washing machine 10a.

[0125] and Figure 3 The same control components of the washing machine 10 shown can be applied to Figure 4 and Figure 5 The laundry treating apparatus 1 a is shown as a washing machine 10 a .

[0126] Figure 6 Show Figure 1 and Figure 3 The interior of the filter device is shown in FIG. Figure 7 yes Figure 6 Exploded view of the filter assembly shown in . Figure 8 In with Figure 7 Directions are shown in different directions Figure 7 The filter arrangement shown in FIG. Fig. 9 Show Figure 6 A cross section of the filter device is shown in FIG.

[0127] Reference Figures 6 to 9, the filter device 100 may include a filter housing 101 for accommodating various components. The filter housing 101 may include a housing body 102, a housing cover 103, and a housing bracket 104. For example, the housing body 102, the housing cover 103, and the housing bracket 104 may be separate components. For example, the housing body 102 and the housing cover 103 may be integrated into one. For example, the housing body 102 and the housing bracket 104 may be integrated into one. For example, the housing cover 103 and the housing bracket 104 may be integrated into one. For example, the housing body 102, the housing cover 103, and the housing bracket 104 may be integrated into one.

[0128] The housing body 102 may form a space for accommodating various components. A cross section of the housing body 102 perpendicular to the extension direction of the filter 120 accommodated therein may be substantially U-shaped. The housing body 102 may be box-shaped with its front side, rear side and upper side open. The housing body 102 may be detachably coupled to the housing cover 103 and / or the housing bracket 104.

[0129] The housing body 102 may include a housing inlet 102a through which water enters the filter device 100 and a housing outlet 102b through which water stored in the filter device 100 is discharged from the filter device 100. For example, the housing inlet 102a and / or the housing outlet 102b may be provided in a lower portion of the housing body 102.

[0130] The housing inlet 102a may be connected to the drain hose 74 or 74a of the washing machine 10 or 10a. The housing outlet 102b may be connected to the drain line 105.

[0131] The housing cover 103 may cover the open front side and upper side of the housing body 102. The housing cover 103 may be detachably coupled to the housing body 102 and / or the housing bracket 104. The housing cover 103 may include a cover opening 103a to allow the filter 120 to pass through. The housing cover 103 may include a mounting portion 103b, at which the user interface 197 is mounted. At least a portion of the user interface 197 may be exposed to the outside of the filter device 100 through the mounting portion 103b.

[0132] The housing bracket 104 may cover the open rear side of the housing body 102. The housing bracket 104 may be detachably coupled to the housing body 102 and / or the housing cover 103. The housing bracket 104 may include a cable opening 104a to pass a power cable 109. The housing bracket 104 may include a connector mounting portion 104b to which a connector 108 for communicating with an external device including the washing machine 10, etc. may be connected.

[0133] The filter device 100 may include a filter case 110 installed inside the filter housing 101. The filter case 110 may form a flow path through which water flows after entering the filter device 100. The filter case 110 may accommodate a filter 120. For example, the filter case 110 may include a case body 111 and a case cover 112.

[0134] The housing body 111 may extend in the extending direction of the filter 120 accommodated therein. The housing body 111 may include a housing opening 111a to allow the filter 120 to pass through. The housing opening 111a may correspond to the cover opening 103a. The housing opening 111a may be located closer to the housing outlet 111b than the housing inlet 112a and allow the filter 120 to pass through.

[0135] The housing body 111 may include a housing outlet 111b for discharging water entering the filter housing 110 from the filter housing 110. The housing outlet 111b may be disposed in a lower portion of the housing body 111. The housing outlet 111b may be adjacent to the housing opening 111a. The housing outlet 111b may be adjacent to the other end of the filter 120, which is opposite to the end at which the filter opening 120a is disposed. The housing outlet 111b may be closer to the second filter portion 122 of the filter 120 than the first filter portion 121.

[0136] The housing outlet 111b may be connected to the housing outlet 102b. The filter device 100 may include a discharge guide 107 for connecting the housing outlet 111b and the housing outlet 102b. For example, the housing outlet 111b may be integrated into the discharge guide 107. For example, the housing outlet 111b, the discharge guide 107 and the housing outlet 102b may be integrated into one body.

[0137] The housing cover 112 may be detachably coupled to the other end of the housing body 111, which is opposite to the end of the housing body 111 provided with the housing opening 111a. For example, the housing cover 112 may be integrated into the housing body 111.

[0138] The housing cover 112 may include a housing inlet 112a through which water enters the filter housing 110. The housing inlet 112a may be connected to the housing inlet 102a. The filter device 100 may include an inlet guide 106 for connecting the housing inlet 112a to the housing inlet 102a. For example, the housing inlet 102a may be integrated into the inlet guide 106. For example, the housing inlet 112a, the inlet guide 106 and the housing inlet 102a may be integrated into one body.

[0139] The housing cover 112 may include a motor mounting portion 112b for mounting the filter cleaning device 130. The motor mounting portion 112b may be placed above the housing inlet 112a. The cleaning motor 136 of the filter cleaning device 130 may be mounted at the motor mounting portion 112b.

[0140] The filter device 100 may include a filter 120 detachably coupled to the filter housing 110. The filter 120 may filter foreign matter having a fine size. The filter 120 may filter microplastics having a size of about 5 mm or less. The filter 120 may include a mesh filter. The filter 120 may extend substantially between the housing inlet 112a and the housing outlet 111b.

[0141] The filter 120 may include a filter opening 120a that opens toward the housing inlet 112a when installed in the filter housing 110. Water that enters the filter housing 110 through the housing inlet 112a may move to the interior of the filter 120 through the filter opening 120a.

[0142] The filter 120 may include a first filter portion 121 and a second filter portion 122. The first filter portion 121 may be closer to the housing inlet 112a than the second filter portion 122. Foreign matter entering the water in the filter housing 110 may be filtered in the first filter portion 121, or may pass through the first filter portion 121 without being filtered in the first filter portion 121 and then be filtered in the second filter portion 122. The first filter portion 121 and the second filter portion 122 may be arranged in sequence along the extension direction of the filter 120. Foreign matter transferred from the first filter portion 121 by the filter cleaning device 130 may be collected in the second filter portion 122.

[0143] The filter device 100 may include a handle 129, at least a portion of which is exposed to the outside of the filter housing 101 when the filter 120 is installed in the filter housing 110. The handle 129 may be detachably coupled to the filter 120. Since the handle 129 is detachably coupled to the filter 120, the filter 120 may be easily maintained and repaired. The handle 129 may be coupled to the cover opening 103a and / or the housing opening 111a by rotation.

[0144] The filter device 100 may include a filter cleaning device 130 for cleaning the filter 120. The filter cleaning device 130 may be installed in the filter housing 110. The filter cleaning device 130 may include a cleaning member 131 for cleaning the surface of the filter 120 through which foreign matter is filtered. The filter cleaning device 130 may include a cleaning driver 135 for driving the cleaning member 131.

[0145] The cleaning member 131 may be placed in the filter 120. The cleaning member 131 may correspond to the first filter portion 121 of the filter 120. The cleaning member 131 may include a blade 131a extending in a spiral shape. The blade 131a may extend in a radial direction from the rotation axis of the cleaning member 131. The cleaning member 131 may contact the surface of the filter 120 that filters foreign matter. The cleaning member 131 may contact the inner surface of the filter 120. For example, the cleaning member 131 may include a plurality of brushes.

[0146] When the cleaning member 131 is driven by the cleaning driver 135, the cleaning member 131 can transfer the foreign matter filtered in the part of the filter 120 near the housing inlet 112a to another part of the filter 120 near the housing outlet 111b. The cleaning member 131 can transfer the foreign matter filtered in the first filter part 121 to the second filter part 122. For example, the cleaning member 131 can be rotatably arranged inside the filter 120. The cleaning member 131 may include a flexible material. The cleaning member 131 can rotate in a state of contact with the filter 120 to clean the foreign matter filtered in the filter 120. When the cleaning member 131 is driven in a state of contact with the filter 120, the cleaning member 131 can remove the foreign matter attached to the surface of the filter 120 through which the foreign matter is filtered by raking out the foreign matter. For example, the cleaning member 131 can slide inside the filter 120.

[0147] For example, the outer diameter of the cleaning member 131 may be greater than the inner diameter of the filter 120. For example, the outer diameter of the blade 131a may be greater than the inner diameter of the filter 120. When the cleaning member 131 overlaps with the filter 120 when the filter cleaning device 130 is driven, the cleaning member 131 may more effectively clean foreign matter collected in the filter 120. The cleaning member 131 may effectively remove foreign matter attached to the surface of the filter 120 through which the foreign matter is filtered.

[0148] The cleaning member 131 can transfer foreign matter filtered in the first filter portion 121 to the second filter portion 122, and when water entering the filter housing 110 flows from the first filter portion 121 to the second filter portion 122, the foreign matter filtered in the first filter portion 121 can be effectively collected in the second filter portion 122.

[0149] The cleaning drive 135 may include a cleaning motor 136. The cleaning drive 135 may include a motor shaft 137. The cleaning motor 136 may generate power for driving the cleaning member 131. The motor shaft 137 may be connected to the cleaning member 131. The cleaning motor 136 may be installed in the filter housing 110. The cleaning motor 136 may be closer to the housing inlet 112a than the housing outlet 111b.

[0150] The filter device 100 may include a circuit 190 disposed inside the filter housing 101. The circuit 190 may be disposed in the upper end region inside the filter housing 101. The circuit 190 may be disposed on one side of the filter housing 110. For example, the circuit 190 may be disposed above the filter housing 110. For example, the circuit 190 may be disposed above the filter 120.

[0151] In the circuit 190, a controller 191 (see Fig.21 In the circuit 190, a communicator 199 for communicating with the washing machine 10 or 10a may be provided (see Fig.21 ).

[0152] The filter device 100 may include a user interface 197 disposed on the circuit 190. At least a portion of the user interface 197 may be exposed to the outside of the filter device 100 through the mounting portion 103b of the filter housing 101. The user interface 197 may be disposed on the upper surface of the filter device 100. The user interface 197 may include at least one of a first button 197a or a second button 197b. The first button 197a may include at least one of a power button or a WiFi connection button. The second button 197b may include another of a power button or a WiFi connection button, which is different from the first button 197a.

[0153] The filter device 100 may include a display 198 for displaying visual information related to the filter device 100. The display 198 may be disposed on an upper surface of the filter device 100. For example, the display 198 may be provided as a component of the user interface 197.

[0154] The filter device 100 may include a filter sensor 150 for acquiring information about the state of the filter 120. The filter sensor 150 may be mounted on the filter housing 110. The filter sensor 150 may be placed on the outer surface of the filter housing 110. The filter sensor 150 may be positioned to correspond to the second filter portion 122 of the filter 120 installed in the filter housing 110. For example, the filter sensor 150 may include a magnetic sensor. For example, the filter sensor 150 may include an optical sensor. The filter sensor 150 may also be referred to as a sensor 150.

[0155] The filter device 100 may include a water supply sensor 200 for detecting water supply to the filter device 100. The water supply sensor 200 may be referred to as a sensor 200. Detailed information on the water supply sensor 200 will be described below.

[0156] Reference Fig. 9 , the filter housing 110 may include a residual water guide 119 formed to guide residual water present in the filter housing 110. The residual water guide 119 may be placed below the filter 120 in the direction of gravity. For example, the residual water guide 119 may be tilted downward from the housing outlet 111b to the housing inlet 112. The residual water guide 119 may be tilted at a preset angle g relative to a direction perpendicular to the direction of gravity. The residual water guide 119 may prevent the residual water in the filter housing 110 from being discharged to the outside of the filter device 100 through the housing outlet 111b.

[0157] The lower end position of the inlet of the housing outlet 111b in the gravity direction may be higher than the lower end position of the housing inlet 112a in the gravity direction. The water remaining in the filter housing 110 may move from the vicinity of the housing outlet 111b to the housing inlet 112a due to gravity. For example, the bottom of the filter housing 110 between the inlet of the housing outlet 111b and the housing inlet 112a may include a step portion.

[0158] The housing inlet 112a may be disposed below the filter 120. The uppermost end of the housing inlet 112a in the gravity direction may be disposed below the uppermost end of the filter 120 in the gravity direction. The lowermost end of the housing inlet 112a in the gravity direction may be disposed below the lowermost end of the filter 120 in the gravity direction. The inlet of the housing outlet 111b may be disposed below the filter 120.

[0159] The filter housing 110 may include a connection opening 118. The connection opening 118 may be placed at one end of the remaining water guide 119, which end is close to the housing inlet 112a. The connection opening 118 may be formed in the filter housing 110 to discharge water guided by the remaining water guide 119 toward the housing inlet 112a. The connection opening 118 may be formed in the filter housing 110 to guide water received through the housing inlet 112 to a bypass flow path 117 to be described below.

[0160] The filter device 100 may include an opening and closing device 140 for opening or closing the connection opening 118. The opening and closing device 140 may include a connection door 141 and a door motor 142 for operating the connection door 141.

[0161] The connection door 141 may open or close the connection opening 118. The connection door 141 may have a size and / or shape capable of closing the connection opening 118. The connection door 141 may be rotatably coupled to the filter housing 110. The connection door 141 may rotate in a direction in which water flows from the remaining water guide 119 toward the housing inlet 112a. The connection door 141 may rotate in a direction opposite to the direction in which water received through the housing inlet 112a flows toward the connection opening 118. The connection door 141 may prevent the connection opening 118 from opening by the pressure of the water received via the housing inlet 112a.

[0162] The door motor 142 may generate power for operating the connection door 141. The opening and closing device 140 may include a power transmission device 143 for transmitting the power generated in the door motor 142 to the connection door 141. The power generated in the door motor 142 may be transmitted to the connection door 141 through the power transmission device 143.

[0163] In the filter housing 110, a filtration flow path 116 passing through the filter 120 and a bypass flow path 117 bypassing the filter 120 may be formed. Water received through the housing inlet 112a may move to the housing outlet 111b through the filtration flow path 116 or move to the housing outlet 111b through the bypass flow path 117.

[0164] When the connection door 141 opens the connection opening 118, water received through the housing inlet 112a can directly move to the bypass flow path 117 without passing through the filter flow path 116. The water received through the housing inlet 112a can enter the bypass flow path 117 through the connection opening 118 and then be discharged to the outside of the filter housing 110 through the housing outlet 111b. Therefore, even if a part of the filter 120 is clogged, the water can be discharged from the filter device 100. Therefore, the filter device 100 can be prevented from stopping operation.

[0165] When the connection door 141 opens the connection opening 118, water of the bypass flow path 117 may move directly to the housing inlet 112a without passing through the filter flow path 116. Residual water existing in the filter housing 110 may move toward the housing inlet 112a through the connection opening 118 and then be discharged to the outside of the filter housing 110 through the housing inlet 112a. Therefore, residual water generated in the filter device 100 may be easily processed.

[0166] The connection opening 118 may allow water of the bypass flow path 117 to move to the housing inlet 112 a , or allow water entering the housing inlet 112 a to move to the bypass flow path 117 .

[0167] Water entering the filter device 100 through the housing inlet 102a may be guided to the filter housing 110 via the inlet guide 106. Water entering the filter housing 110 through the housing inlet 112a may enter the inside of the filter 120 through the filter opening 120a. Water entering the filter housing 110 may flow to the filter flow path 116. Since the connection door 141 closes the connection opening 118, the water entering the filter housing 110 cannot flow to the bypass flow path 117 through the connection opening 118. Foreign matter entering the water inside the filter 120 may be filtered out when the water flows through the filter 120. The water passing through the filter 120 may be discharged to the outside of the filter housing 110 through the housing outlet 111b. The water discharged through the housing outlet 111b may sequentially pass through the discharge guide 107 and the housing outlet 102b and be discharged from the filter device 100. The water discharged from the filter device 100 may be guided through the drain line 105.

[0168] Although water is no longer supplied to the filter device 100, remaining water may be disposed within the filter case 110. The remaining water may be stored at the bottom of the filter case 110 under gravity. The remaining water may be stored in the bypass flow path 117.

[0169] The remaining water stored at the bottom of the filter housing 110 may flow to the housing inlet 112a according to the degree to which the connection door 141 opens the connection opening 118. The remaining water flowing to the housing inlet 112a may sequentially pass through the inlet guide 106 and the housing inlet 102a and be discharged to the outside of the filter device 100. The remaining water discharged to the outside of the filter device 100 may be guided to the drain device 70 or 70a of the washing machine 10 or 10a through the drain hose 74 or 74a.

[0170] Meanwhile, the filter housing 110 may include a first space S1 and a second space S2. The filter 120 may be installed in the first space S1. The second space S2 may contain water received through the housing inlet 112a and flowing to the first space S1. The second space S2 may collect water that has entered the interior of the filter housing 110 but has not yet passed through the filter 120. For example, the second space S2 may be placed below the first space S1. For example, in a state where the connection door 141 closes the connection opening 118, the second space S2 may be defined by the lowest end L of the filter 120, the connection door 141, and the housing inlet 112a.

[0171] Reference Figure 6 and Figure 8 , the filter device 100 may include a water supply sensor 200. The water supply sensor 200 may detect water supply to the filter device 100. The water supply sensor 200 may detect water entering the filter device 100 from the drain device 70 or 70a of the washing machine 10 or 10a.

[0172] For example, the water supply sensor 200 may detect at least one of the presence or absence of water entering the filter device 100, the flow rate of water entering the filter device 100, the flow rate of water flowing inside the filter device 100, or the water level of water contained in the filter device 100. For example, the water entering the filter device 100 may include at least one of the water entering the filter housing 101, the water entering the housing inlet 102a of the filter housing 101, the water entering the filter case 110, the water entering the case inlet 112a of the filter case 110, or the water entering the inlet guide 106. In addition to the above examples, the water supply sensor 200 may also detect water entering various components of the filter device 100.

[0173] For example, during the drain operation of the washing machine 10 or 10a, the water stored in the tub 20 may be drained to the outside of the washing machine housing 11 or 11a through the drain device 70 or 70a. The water drained to the outside of the washing machine housing 11 or 11a may enter the filter device 100 through the drain hose 74 or 74a. Foreign matter in the water drained from the washing machine 10 or 10a by the drain operation of the washing machine 10 or 10a may be filtered when the water passes through the filter device 100. At this time, the water supply sensor 200 may detect the water drained from the washing machine 10 or 10a and moving toward the filter device 100.

[0174] For example, the water supply sensor 200 may be various types of sensors. The water supply sensor 200 may be a non-contact sensor. The water supply sensor 200 may detect water entering the filter device 100 without making physical contact with the water. The water supply sensor 200 may be a contact sensor. The water supply sensor 200 may detect water entering the filter device 100 by physical contact with the water. As long as the water supply sensor 200 can detect water entering the filter device 100 from the drain device 70 or 70a of the washing machine 10 or 10a through the drain operation of the washing machine 10 or 10a, the type of the water supply sensor 200 is not limited.

[0175] Fig.10 A filter device including a first sensor according to an embodiment of the present disclosure is shown. Fig.11 yes Fig.10 A top view of the filter device is shown.

[0176] Reference Fig.10 and Fig.11 , an example in which the filter device 100 includes a first sensor 200a will be described. The first sensor 200a may be an example of the water supply sensor 200.

[0177] The filter device 100 may include a first sensor 200a. The first sensor 200a may be a non-contact sensor. The first sensor 200a may detect water entering the filter device 100 without any physical contact with the water.

[0178] The first sensor 200 a may be detachably mounted on an outer surface of the filter case 110 to detect water contained inside the filter case 110 .

[0179] For example, the first sensor 200a may be installed on the outer surface of the filter housing 110 corresponding to the second space S2. For example, the first sensor 200a may detect water contained in the second space S2. For example, the first sensor 200a may detect that the water entering the filter housing 110 reaches a preset water level in the filter housing 110. For example, the first sensor 200a may detect that the water level contained in the filter housing 110 is equal to or higher than the height of the lowest end L of the filter 120.

[0180] For example, the first sensor 200a may include a capacitive sensor. For example, the first sensor 200a may include a capacitor and detect changes in the charge and discharge cycle of the capacitor, although not limited thereto. However, the first sensor 200a may detect water entering the filter device 100 without physical contact with the water by various methods.

[0181] Fig.10 and Fig.11The case where the first sensor 200a is installed on the outer surface of the filter housing 110 is shown, although it is not limited thereto. For example, the first sensor 200a may be detachably installed on the outer surface of the housing inlet 102a of the filter housing 101. For example, the first sensor 200a may be detachably installed on the outer surface of the inlet guide 106. As long as the first sensor 200a can detect water entering the filter device 100 from the drain device 70 or 70a of the washing machine 10 or 10a, the position of the first sensor 200a is not limited.

[0182] Fig.12 A cross section of a filter device including a second sensor according to an embodiment of the present disclosure is shown. Fig.13 The second sensor has been Fig.12 The filter device shown is in a state where it receives water and moves it.

[0183] Reference Fig.12 and Fig.13 , an example in which the filter device 100 includes the second sensor 200 b will be described. The second sensor 200 b may correspond to an example of the water supply sensor 200 .

[0184] The filter device 100 may include a second sensor 200b. The second sensor 200b may be a contact sensor. The second sensor 200b may detect water entering the filter device 100 by physical contact with the water.

[0185] The second sensor 200 b may be detachably installed in the filter case 110 to detect water contained in the filter case 110 .

[0186] For example, at least a portion of the second sensor 200b may be disposed in the second space S2. For example, the second sensor 200b may detect water entering the second space S2 through the housing inlet 112a. For example, the second sensor 200b may detect that water entering the filter housing 110 reaches a preset water level within the filter housing 110. For example, the second sensor 200b may detect that the water level of the water contained in the filter housing 110 is equal to or higher than the height of the lowest end L of the filter 120.

[0187] For example, the second sensor 200b may include a float 202. At least a portion of the float 202 may be placed in the second space S2, and may float by water entering the second space S2 through the housing inlet 112a. For example, the second sensor 200b may include a rod 201 extending from the float 202. According to the filling condition of water in the second space S2, the float 202 may move along the extending direction of the rod 201. For example, the float 202 may move in the up and down directions. For example, the float 202 may include a magnet, and the rod 201 may include a switch. According to the floating of the float 202, the magnet in the float 202 may turn the switch in the rod 201 on or off.

[0188] For example, a rod fixing portion 115 for fixing the rod 201 may be provided in the filter housing 110. The rod fixing portion 115 may restrict the rod 201 with respect to the circumferential direction of the rod 201. The rod fixing portion 115 may not restrict the rod 201 with respect to the extending direction of the rod 201. Therefore, the float 202 may be moved along the extending direction of the rod 201 by the water entering the second space S2.

[0189] Fig.14 A cross section of a filter device including a third sensor according to an embodiment of the present disclosure is shown.

[0190] Reference Fig.14 , an example in which the filter device 100 includes a third sensor 200 c will be described. The third sensor 200 c may correspond to an example of the water supply sensor 200 .

[0191] The filter device 100 may include a third sensor 200c. The third sensor 200c may be a contact sensor. The third sensor 200c may detect water entering the filter device 100 by physical contact with the water.

[0192] The third sensor 200c may detect water entering the filter device 100. The third sensor 200c may detect water passing through at least one component in the filter device 100. The third sensor 200c may detect a flow rate of water entering the filter device 100.

[0193] For example, the third sensor 200c may be detachably installed in the housing inlet 102a of the filter housing 101. For example, the third sensor 200c may detect a flow rate of water passing through the housing inlet 102a.

[0194] For example, the third sensor 200c may include a rotating body 203. The rotating body 203 may be rotatable by water entering the filter device 100. The rotating body 203 may be rotatable by water passing through the housing inlet 102.

[0195] For example, the rotating body 203 may include a magnet. According to the rotation of the rotating body 203, the magnetism of the magnet included in the rotating body 203 may change. According to the change in the magnetism of the magnet included in the rotating body 203, the sensor output of the sensor 200c may also change. The sensor 200c may detect at least one of the following based on the sensor output: the presence or absence of water rotating the rotating body 203, the speed of the water rotating the rotating body 203, or the flow rate of the water rotating the rotating body 203.

[0196] Fig.14 The case where the third sensor 200c is installed in the housing inlet 102a is shown, although it is not limited thereto. For example, the third sensor 200c may be detachably installed in the inlet guide 106. In this case, the rotating body 203 of the third sensor 200c may detect water passing through the inlet guide 106. For example, the third sensor 200c may be detachably installed in the housing inlet 112a of the filter housing 110. In this case, the third sensor 200c may detect water passing through the housing inlet 112a. For example, the third sensor 200c may be detachably installed in the second space S2. In this case, the third sensor 200c may detect water passing through the second space S2. As long as the third sensor 200c can detect the flow of water entering the filter device 100 from the drain device 70 or 70a of the washing machine 10 or 10a, the position of the third sensor 200c is not limited.

[0197] Fig.15 A filter device including a fourth sensor according to an embodiment of the present disclosure is shown. Fig.16 Show Fig.15 A cross section of a filter arrangement is shown. Fig.17 Shown in Fig.16 The locations in different locations are provided Fig.16 A cross section of a filter arrangement of a fourth sensor is shown. Fig.18 A fourth sensor according to an embodiment of the present disclosure is shown.

[0198] Reference Figures 15 to 18 , an example in which the filter device 100 includes a fourth sensor 200d will be described. The fourth sensor 200d may correspond to an example of the water supply sensor 200.

[0199] The filter device 100 may include a fourth sensor 200d. The fourth sensor 200d may be a contact sensor. The fourth sensor 200d may detect water entering the filter device 100 by physical contact with the water.

[0200] The fourth sensor 200d may be detachably installed in the filter housing 110. The fourth sensor 200d may detect water contained in the filter housing 110. The fourth sensor 200d may detect water entering the filter housing 110. The fourth sensor 200d may detect water passing through at least one component of the filter device 100.

[0201] The fourth sensor 200d may include a first electrode portion 2041 and a second electrode portion 2051. A pair of the first electrode portion 2041 and the second electrode portion 2051 may be provided. The fourth sensor 200d may detect conductivity between the first electrode portion 2041 and the second electrode portion 2051. The fourth sensor 200d may detect a short circuit between the first electrode portion 2041 and the second electrode portion 2051. For example, when the first electrode portion 2041 and the second electrode portion 2051 contact water, current may flow between the first electrode portion 2041 and the second electrode portion 2051. The fourth sensor 200d may recognize that water has entered the filter device 100 based on the current.

[0202] For example, refer to Fig.16 , the first electrode portion 2041 and the second electrode portion 2051 of the fourth sensor 200d may be disposed in the filter housing 110. For example, the first electrode portion 2041 may be disposed in the second space S2, and the second electrode portion 2051 may be spaced a predetermined distance from the first electrode portion 2041. For example, the fourth sensor 200d may detect water that enters the second space S2 through the housing inlet 112a and moves toward the first space S1.

[0203] For example, refer to Fig.17 , the first electrode portion 2041 and the second electrode portion 2051 of the fourth sensor 200d may be disposed in the filter housing 110. For example, the first electrode portion 2041 may be disposed at the housing inlet 112a, and the second electrode portion 2051 may be spaced a preset distance from the first electrode portion 2041. For example, the fourth sensor 200d may detect water passing through the housing inlet 112a.

[0204] The fourth sensor 200d can be placed at Figures 15 to 17At a position different from the position shown. For example, any one of the first electrode part 2041 and the second electrode part 2051 can be placed in the second space S2, and the other of the first electrode part 2041 and the second electrode part 2051 can be placed in the shell inlet 112a. For example, both the first electrode part 2041 and the second electrode part 2051 can be placed in the inlet guide 106. For example, any one of the first electrode part 2041 and the second electrode part 2051 can be placed in the inlet guide 106, and the other of the first electrode part 2041 and the second electrode part 2051 can be placed in the shell inlet 102a. For example, both the first electrode part 2041 and the second electrode part 2051 can be placed in the shell inlet 102a, although not limited to the above examples. As long as the fourth sensor 200d can detect water entering the filter device 100 from the drain device 70 or 70a of the washing machine 10 or 10a, the position of the fourth sensor 200d is not limited.

[0205] For example, refer to Fig.18 , the fourth sensor 200d may include a first electrode unit 204 and a second electrode unit 205 .

[0206] The first electrode unit 204 may include a first electrode portion 2041 for detecting water. For example, the first electrode portion 2041 may include an electrode rod from which a sheath has been stripped. The first electrode portion 2041 may be in contact with water. The first electrode portion 2041 may be exposed inside the filter housing 110, inside the inlet guide 106, or inside the housing inlet 102b.

[0207] The first electrode unit 204 may include a first fixing portion 2042 fixed to the filter device 100. The first fixing portion 2042 may be provided at one side of the first electrode portion 2041. The first fixing portion 2042 may be installed on an outer surface of the filter housing 110, an outer surface of the inlet guide 106, or an outer surface of the housing inlet 102b.

[0208] The first electrode unit 204 may include a first sensor cable 2044. The first sensor cable 2044 may be electrically connected to the circuit 190.

[0209] The first electrode unit 204 may include a bracket 2043 configured to support a first sensor cable 2044 .

[0210] The second electrode unit 205 may include a second electrode portion 2051 for detecting water. For example, the second electrode portion 2051 may include an electrode rod from which a sheath has been stripped. The second electrode portion 2051 may be in contact with water. The second electrode portion 2051 may be exposed to the interior of the filter housing 110, the interior of the inlet guide 106, and the interior of the housing inlet 102b.

[0211] The second electrode unit 205 may include a second fixing portion 2052 fixed to the filter device 100. The second fixing portion 2052 may be provided at one side of the second electrode portion 2051. The second fixing portion 2052 may be seated on the outer surface of the filter housing 110, the outer surface of the inlet guide 106, and the outer surface of the housing inlet 102b.

[0212] The second electrode unit 205 may include a second sensor cable 2054. The second sensor cable 2054 may be electrically connected to the circuit 190.

[0213] The second electrode unit 205 may include a bracket 2053 for supporting the second sensor cable 2054 .

[0214] Fig.19 A side surface of a filter device including a fifth sensor according to an embodiment of the present disclosure is shown.

[0215] Reference Fig.19 , an example in which the filter device 100 includes a fifth sensor 200e will be described. The fifth sensor 200e may correspond to an example of the water supply sensor 200.

[0216] The filter device 100 may include a fifth sensor 200 e. The fifth sensor 200 e may be disposed within the filter device 100.

[0217] The fifth sensor 200e may detect the water level of the water in the filter case 110. For example, the fifth sensor 200e may detect the water level of the water flowing in the filter case 110. For example, the fifth sensor 200e may detect the water level of the water contained in the filter case 110.

[0218] The filter device 100 may include a connecting pipe 206. The connecting pipe 206 may extend from the filter housing 110. The connecting pipe 206 may move water present in the filter housing 110. One end of the connecting pipe 206 may be in communication with the filter housing 110. One end of the connecting pipe 206 may be connected to a communication opening 207 formed in the filter housing 110. The other end of the connecting pipe 206 may be connected to the fifth sensor 200e. Water present inside the filter housing 110 may flow into the connecting pipe 206 through the communication opening 207. Water discharged from the filter housing 110 through the communication opening 207 may be filled into the connecting pipe 206. According to changes in the water level inside the filter housing 110, the internal pressure of the connecting pipe 206 may change.

[0219] The fifth sensor 200e can detect a change in the internal pressure of the connecting pipe 206. For example, the fifth sensor 200e may include a ferrite core and a coil wound around the ferrite core. For example, according to the change in the internal pressure of the connecting pipe 206, the ferrite core may move and the inductance value of the coil may change. According to the change in the inductance value of the coil, the output frequency of the sensor 200e may change. Therefore, the fifth sensor 200e can detect the water level of the water present in the filter housing 110 based on the output frequency.

[0220] For example, the communication opening 207 may be disposed below the center line C. For example, the fifth sensor 200 e may be disposed above the center line C of the filter 120 . The center line C may be a line passing through the center of the filter 120 in the extension direction of the filter 120 .

[0221] The connection pipe 206 and the fifth sensor 200e may be referred to as a sensing device.

[0222] At the same time, the above reference Figures 10 to 18 The described examples 200a, 200b, 200c, 200d, and 200e of the water supply sensor 200 may be combined with each other.

[0223] Fig. 20 A filter device according to an embodiment of the present disclosure is shown.

[0224] Will refer to Fig. 20 The filter device 100a according to an embodiment of the present disclosure is described. Fig. 20 In the description of the filter device 100a shown, Figures 6 to 9 The same components of the filter device 100 are given the same reference numerals, and detailed description thereof is omitted. Figures 10 to 18 The examples 200a, 200b, 200c, 200d, and 200e of the water supply sensor 200 described above may be applied to the filter device 100a.

[0225] Reference Fig. 20 The positions of the housing inlet 202a and the housing outlet 202b of the filter device 100a may be different from Figures 6 to 9 The locations of the housing inlet 102a and the housing outlet 102b of the filter device 100 are shown.

[0226] Reference Fig. 20 The housing inlet 202a may be disposed on the rear surface of the filter device 100a. The housing inlet 202a may be disposed on a housing support. Figures 6 to 9 The housing inlet 102a of the filter device 100 shown can be mounted on the housing body 102, and Fig. 20 The housing inlet 202a of the filter device 100a shown can be placed on the housing support. The housing inlet 202a can extend in the same direction as the housing inlet 112a, wherein the housing inlet 112a is the inlet of the filter housing 110. The housing inlet 202a can be directly connected to the housing inlet 112a. For example, the inlet guide 106 can be omitted between the housing inlet 202a and the housing inlet 112a. For example, the housing inlet 202a and the housing inlet 112a can be integrated into one.

[0227] The housing outlet 202b may be disposed on the rear surface of the filter device 100a. The housing outlet 202b may be disposed at a housing support. Figures 6 to 8 The housing outlet 102b of the filter device 100 shown can be mounted on the housing body 102, while Fig. 20 The housing outlet 202b of the filter device 100a shown can be mounted on a housing support. Fig. 20 Differently, the housing outlet 202b may be directly connected to the housing outlet 111b. For example, the discharge guide 107 may be omitted between the housing outlet 202b and the housing outlet 111b. For example, the housing outlet 202b and the housing outlet 111b may be integrated into one body.

[0228] In the filter device, Fig. 20 The housing inlet 202a shown may be connected to Figures 6 to 9 The housing outlet 102b is shown in combination with Figures 6 to 9 The housing inlet 102a shown may be connected to Fig. 20 The housing outlet 202b is shown in combination, which is not shown.

[0229] Fig.21 is a control block diagram of a filter device according to an embodiment of the present disclosure. Fig.21 The signal flow between components in the filter device according to an embodiment of the present disclosure is schematically shown.

[0230] Reference Fig.21The filter device 100 or 100a according to the embodiment of the present disclosure may include a user interface 197 for interacting with a user, a filter sensor 150, a water supply sensor 200, a filter cleaning device 130, an opening and closing device 140, a display 198, a communicator 199, and a controller 191 for controlling various components of the filter device 100 or 100a. The filter cleaning device 130 may include a cleaning motor 136. The opening and closing device 140 may include a door motor 142.

[0231] The controller 191 may include at least one memory 191 a and at least one processor 191 b to perform the above-mentioned operations and operations to be described below.

[0232] According to an embodiment of the present disclosure, the controller 191 may include at least one memory 191a and at least one processor 191b, the memory 191a stores data for controlling the operation of the components in the filter device 100 or 100a in the form of an algorithm and / or program, and the processor 191b uses the data stored in the at least one memory 191a to perform the above-mentioned operations and the operations described below. The memory 191a and the processor 191b may be implemented by a separate chip. The processor 191b may include one, two or more processor chips or one, two or more processing cores. The memory 191a may include one, two or more memory chips or one, two or more memory blocks. In addition, the memory 191a and the processor 191b may also be implemented by a single chip.

[0233] The controller 191 may process user input received through the user interface 197 and control various components of the filter device 100 or 100 a (eg, the filter cleaning device 130 , the opening and closing device 140 , and the display 198 ) based on the processing results of the user input.

[0234] The user interface 197 may include a first button 197 a and a second button 197 b , and operate based on a control signal from the controller 191 .

[0235] The filter sensor 150 may detect the amount of foreign matter collected in the filter 120. The filter sensor 150 may transmit a sensing signal to the controller 191. The filter sensor 150 may transmit sensor data to the controller 191. The filter sensor 150 may be mounted on the filter case 110.

[0236] The water supply sensor 200 may detect water supply to the filter device 100 or 100a. The water supply sensor 200 may transmit a sensing signal to the controller 191. The water supply sensor 200 may transmit sensor data to the controller 191. The water supply sensor 200 may be installed in the filter housing 110. The water supply sensor 200 may be installed in the housing inlet 112a. The water supply sensor 200 may be installed in the inlet guide 106. The water supply sensor 200 may be installed in the housing inlet 102a.

[0237] The water supply sensor 200 may include various types of sensors. However, the water supply sensor 200 may adopt any configuration capable of detecting water supply to the filter device 100 or 100a.

[0238] The controller 191 may process the sensor data received from the filter sensor 150 and / or the water supply sensor 200, and control various components of the filter device 100 or 100a (e.g., the filter cleaning device 130 and the opening and closing device 140) based on the processing results of the sensor data. It is to be understood that these various components may be controlled according to the signal generated by the sensor corresponding to, for example, the water level detected in the filter device.

[0239] The filter cleaning device 130 may include a cleaning member 131 inserted into the filter 120 in a manner that is slidable or rotatable relative to the inner surface of the filter 120 , and a cleaning motor 136 for rotating the cleaning member 131 .

[0240] The controller 191 may control the filter cleaning device 130. For example, the controller 191 may operate or stop the cleaning motor 136.

[0241] For example, the controller 191 may control a driving circuit for applying a driving current to the cleaning motor 136. The driving circuit may supply the driving current to the cleaning motor 136 in response to a driving signal from the controller 191. The driving circuit may include a rectifier circuit, a DC link circuit, an inverter circuit, a current sensor, and a gate driver, wherein the rectifier circuit is used to rectify the AC power of the external power supply; the DC link circuit is used to remove ripples from the rectified power and output DC power; the inverter circuit is used to convert the DC power into a driving power in the form of a sine wave and output the driving current to the cleaning motor 136; the current sensor is used to measure the driving current supplied to the cleaning motor 136; and the gate driver is used to turn on / off the switching device included in the inverter circuit based on the driving signal from the controller 191.

[0242] The opening and closing device 140 may include a connection door 141 for opening or closing the connection opening 118 and a door motor 142 for operating the connection door 141 .

[0243] The controller 191 may control the opening and closing device 140. For example, the controller 191 may control the operation of the door motor 142 to open or close the connection opening 118.

[0244] The display 198 may display visual information related to the filter device 100 or 100a. For example, the display 198 may be provided as a separate component from the user interface 197. For example, the display 198 may be provided as a component of the user interface 197.

[0245] The communicator 199 may transmit data to or receive data from an external device based on a control signal from the controller 191. For example, the communicator 199 may transmit / receive various data by communicating with a server and / or a user terminal and / or home appliances including the washing machine 10 or 10a.

[0246] To this end, the communicator 199 can support establishing a direct (e.g., wired) communication channel or a wireless communication channel with an external electronic device (e.g., a server, a user terminal and / or a household appliance), and communicate through the established communication channel. According to an embodiment of the present disclosure, the communicator 199 may include a wireless communication module (e.g., a cellular communication module, a short-range communication module, or a GNSS communication module) or a wired communication module (e.g., a LAN communication module or a power line communication module). The corresponding communication module in the communication module can communicate with the external electronic device through a first network (e.g., a short-range communication network, such as Bluetooth, WiFi Direct, or IrDA) or a second network (e.g., a long-range communication network, such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN)). Various communication modules can be integrated into a single component (e.g., a single chip) or implemented using multiple separate components (e.g., multiple chips).

[0247] According to various embodiments of the present disclosure, the communicator 199 may establish communication with a user terminal via a server.

[0248] According to various embodiments of the present disclosure, the communicator 199 may include a WiFi module, and may communicate with an external server and / or a user terminal based on communication established with an access point (AP) in a home.

[0249] According to an embodiment of the present disclosure, the controller 191 may control the filter cleaning device 130 based on the information obtained by the water supply sensor 200. The controller 191 may control the operation of the cleaning driver 135 based on the information obtained by the water supply sensor 200. The controller 191 may control the operation of the cleaning motor 136 based on the information obtained by the water supply sensor 200. The controller 191 may operate or stop the cleaning motor 136 based on the information obtained by the water supply sensor 200.

[0250] According to an embodiment of the present disclosure, the controller 191 may operate the filter cleaning device 130 based on the first condition detected by the water supply sensor 200. The controller 191 may operate the cleaning driver 135 based on the first condition detected by the water supply sensor 200. The controller 191 may operate the cleaning motor 136 based on the first condition detected by the water supply sensor 200.

[0251] For example, the first condition may include a case where water discharged from the washing machine 10 or 10a enters the filter device 100 or 100a. For example, the first condition may include a case where the water entering the filter device 100 or 100a reaches a predetermined water level. For example, the first condition may include a case where the water level of the water contained in the filter housing 110 is equal to or higher than the height of the lowest end L of the filter 120 or a higher height. For example, the height of the lowest end L of the filter 120 may be the lowest water level at which the water entering the filter device 100 or 100a is filtered in the filter 120. In the case where the water contained in the filter housing 110 reaches the height of the lowest end L of the filter 120, the filter 120 may filter the water entering the filter device 100 or 100a. When the filter 120 filters the water entering the filter device 100 or 100a, the filter cleaning device 130 may clean the filter 120.

[0252] According to the detection of the first condition by the water supply sensor 200, the controller 191 may recognize that the drainage operation of the washing machine 10 or 10a starts. Based on the recognition that the drainage operation of the washing machine 10 or 10a starts, the controller 191 may operate the filter cleaning device 130. While the water discharged from the washing machine 10 or 10a is filtered by the filter 120 in the filter device 100 or 100a, the filter cleaning device 130 may clean the filter 120. Foreign matter collected in the filter 120 may be immediately cleaned by the filter cleaning device 130.

[0253] According to an embodiment of the present disclosure, the controller 191 may stop operating the filter cleaning device 130 based on the water supply sensor 200 detecting the second condition. The controller 191 may stop operating the cleaning driver 135 based on the water supply sensor 200 detecting the second condition. The controller 191 may stop operating the cleaning motor 136 based on the water supply sensor 200 detecting the second condition.

[0254] For example, the second condition may include a case where water supply to the filter device 100 or 100a is stopped. For example, the second condition may include a case where no water enters the filter device 100 or 100a for a preset time after water is supplied to the filter device 100 or 100a.

[0255] For example, the controller 191 may recognize that the drain operation of the washing machine 10 or 10a is terminated after the drain operation is started, based on the detection of the second condition via the water supply sensor 200. Based on the recognition that the drain operation is terminated, the controller 191 may stop operating the filter cleaning device 130. In the case where the supply of water discharged from the washing machine 10 or 10a to the filter device 100 or 100a is stopped, the filter cleaning device 130 may terminate the cleaning of the filter 120.

[0256] Fig. 22 is a flowchart illustrating a method of controlling a filter device according to an embodiment of the present disclosure.

[0257] Reference Fig. 22 , a drainage operation of the washing machine 10 or 10a may be performed (operation 1100). According to the start of the drainage operation of the washing machine 10 or 10a, water stored in the tub 12 may be discharged to the outside of the washing machine housing 11 or 11a through the drainage hose 74 or 74a. The water discharged from the washing machine 10 or 10a may enter the filter device 100 or 100a.

[0258] The water supply sensor 200 may detect water entering the filter device 100 or 100a (operation 1200). For example, the water supply sensor 200 may detect at least one of the following: the presence or absence of water entering the filter device 100 or 100a, the flow of water entering the filter device 100 or 100a, the amount of water entering the filter device 100 or 100a, and / or the water level of water contained in the filter device 100 or 100a.

[0259] The controller 191 may control the operation of the filter cleaning device 130 based on a signal detected by the water supply sensor 200 (operation 1300 ).

[0260] For example, the controller 191 may operate the filter cleaning device 130 according to the water supply sensor 200 detecting the water entering the filter device 100 or 100a. The controller 191 may operate the cleaning driver 135 according to the water supply sensor 200 detecting the water entering the filter device 100 or 100a. The controller 191 may operate the cleaning motor 136 according to the water supply sensor 200 detecting the water entering the filter device 100 or 100a. The filter cleaning device 130 may clean the filter 120 when water enters the filter device 100 or 100a.

[0261] For example, the water supply sensor 200 may recognize that the water supply to the filter device 100 or 100a is stopped. In this case, the controller 191 may stop operating the filter cleaning device 130. In the case where the water supply sensor 200 recognizes that the water supply to the filter device 100 or 100a is stopped, the controller 191 may stop operating the cleaning driver 135. In the case where the water supply sensor 200 recognizes that the water supply to the filter device 100 or 100a is stopped, the controller 191 may stop operating the cleaning motor 136. In the case where the water supply to the filter device 100 or 100a is stopped, the filter cleaning device 130 may stop cleaning the filter 120.

[0262] For example, the controller 191 may operate the filter cleaning device 130 based on detecting at least one of a component of the filter device 100 or 100a receiving water or water collected in the filter housing 110 to a predetermined water level. For example, the controller 191 may operate the cleaning drive 135 of the filter cleaning device 130 based on detecting at least one of a component of the filter device 100 or 100a receiving water or water collected in the filter housing 110 to a predetermined water level. For example, the controller 191 may operate the cleaning motor 136 of the filter cleaning device 130 based on detecting at least one of a component of the filter device 100 or 100a receiving water or water collected in the filter housing 110 to a predetermined water level.

[0263] Fig. 22 The illustrated flowchart is not intended to limit the order of operations 1100 , 1200 , and 1300 , and the order of operations 1100 , 1200 , and 1300 may be changed according to various embodiments of the present disclosure.

[0264] Additionally, at least two of operations 1100, 1200, and 1300 may be performed simultaneously.

[0265] In addition, some of operations 1100, 1200, and 1300 may be omitted, or another operation not shown in the drawing may be added.

[0266] Fig.23is a flow chart illustrating a method of controlling a filter device according to an embodiment of the present disclosure.

[0267] Reference Fig.23 , a drainage operation of the washing machine 10 or 10a may be performed (operation 2100). According to the start of the drainage operation of the washing machine 10 or 10a, water stored in the tub 12 may be discharged to the outside of the washing machine housing 11 or 11a through the drainage hose 74 or 74a. Water discharged from the washing machine 10 or 10a may enter the filter device 100 or 100a.

[0268] The water supply sensor 200 may detect water entering the filter device 100 or 100 a and transmit a sensing signal to the controller 191 (operation 2200 ). Information obtained by the water supply sensor 200 may be transmitted to the controller 191 .

[0269] The controller 191 may receive a sensing signal from the water supply sensor 200 (operation 2300 ). The sensing signal from the water supply sensor 200 may be transmitted to the controller 191 .

[0270] The controller 191 may recognize the start of drainage of the washing machine 10 or 10a based on the sensing signal (operation 2400). The controller 191 may recognize whether the washing machine 10 or 10a performs a drainage operation based on the sensing signal.

[0271] For example, based on the initial detection of the first condition by the water supply sensor 200, the controller 191 may recognize that the drainage operation of the washing machine 10 or 10a is started. Based on the continuous detection of the first condition by the water supply sensor 200, the controller 191 may recognize that the drainage operation of the washing machine 10 or 10a is in progress. For example, in the case where the water supply sensor 200 fails to continue to detect the first condition within a preset time after detecting the first condition, the controller 191 may recognize that the drainage operation of the washing machine 10 or 10a has been terminated. For example, based on the detection of the second condition by the water supply sensor 200, the controller 191 may recognize that the drainage operation of the washing machine 10 or 10a has been terminated.

[0272] The controller 191 may generate a driving signal for operating the filter cleaning device 130 (operation 2500). For example, the controller 191 may supply power to the filter cleaning device 130 to operate the filter cleaning device 130. For example, the controller 191 may apply a driving current to the cleaning driver 135. For example, the controller 191 may apply a driving current to the cleaning motor 136.

[0273] The filter cleaning device 130 may be operated by the controller 191 to clean the filter 120 (operation 2600). The filter cleaning device 130 may operate based on a driving signal received from the controller 191. According to the operation of the filter cleaning device 130, foreign matter collected in the filter 120 may be separated from the filter 120. For example, according to the operation of the cleaning motor 136, the blade 131a may scrape out foreign matter attached to the inner surface of the filter 120 while rotating.

[0274] Fig.23 The flowchart shown in may not be intended to limit the order of operations 2100, 2200, 2300, 2400, 2500, and 2600, and the order of operations 2100, 2200, 2300, 2400, 2500, and 2600 may be changed according to various embodiments of the present disclosure.

[0275] Furthermore, at least two of operations 2100, 2200, 2300, 2400, 2500, and 2600 may be performed simultaneously.

[0276] Furthermore, some of operations 2100 , 2200 , 2300 , 2400 , 2500 , and 2600 may be omitted, or additional operations not shown in the drawings may be added.

[0277] Fig.24 An example of the operation of the filter device according to the embodiment of the present disclosure is shown.

[0278] According to the start of drainage of the washing machine 10 or 10a, the filter cleaning device 130 may operate. In response to the start of drainage of the washing machine 10 or 10a, the cleaning driver 135 may operate. The operation of the filter cleaning device 130 may be controlled by the controller 191. From the start of drainage of the washing machine 10 or 10a until the end of drainage of the washing machine 10 or 10a, the cleaning driver 135 may be kept in an on state. During the drainage operation of the washing machine 10 or 10a, the filter 120 may be cleaned by the filter cleaning device 130.

[0279] Fig.25 An example of the operation of the filter device according to the embodiment of the present disclosure is shown.

[0280] According to the start of drainage of the washing machine 10 or 10a, the filter cleaning device 130 may operate. In response to the start of drainage of the washing machine 10 or 10a, the filter cleaning device 130 may be repeatedly operated and stopped. The operation of the filter cleaning device 130 may be controlled by the controller 191. From the start of drainage of the washing machine 10 or 10a until the drainage is terminated, the cleaning driver 135 may be repeatedly set to an on state and an off state.

[0281] For example, refer to Fig.25 , according to the start of drainage of the washing machine 10 or 10a, the filter cleaning device 130 may operate for a first time a. After the filter cleaning device 130 operates for the first time a, the filter cleaning device 130 may stop for a second time b. After the filter cleaning device 130 stops for the second time b, the filter cleaning device 130 may operate for a third time c. After the filter cleaning device 130 operates for the third time c, the filter cleaning device 130 may stop for a fourth time d. After the filter cleaning device 130 operates for the first time a and stops for the second time b, the filter cleaning device 130 may operate according to a period of a fifth time e. The fifth time e may be the sum of the third time c and the fourth time d.

[0282] For example, the first time a can be longer than the third time c. In the initial stage of the drainage operation of the washing machine 10 or 10a, the washing machine 10 or 10a can discharge a large amount of water. Therefore, after the washing machine 10 or 10a starts to drain, the filter cleaning device 130 can clean the filter 120 for the first time a, which is a relatively long time. Thereafter, the drainage of the washing machine 10 or 10a can be reduced, and therefore, the filter cleaning device 130 can clean the filter 120 for the third time c, which is a relatively short time. However, the present disclosure is not limited to the above examples. The first time a and the third time c can be the same time, and the third time c can be longer than the first time a.

[0283] The times a, b, c, d, and e described above may be preset values, and some of the times a, b, c, d, and e may be the same time. The times a, b, c, d, and e may be different times. For example, the user may set the times a, b, c, d, and e through the user interface 197.

[0284] Fig.26 An example of the operation of the filter device according to the embodiment of the present disclosure is shown.

[0285] According to the start of drainage of the washing machine 10 or 10a, the filter cleaning device 130 can operate. From the start of drainage of the washing machine 10 or 10a until the drainage is terminated, the size of the driving current A applied to the cleaning driver 135 can vary. The controller 191 can control the driving current A supplied to the cleaning driver 135. For example, according to the change in the size of the driving current A supplied to the cleaning driver 135, the output of the cleaning motor 136 can vary. According to the change in the output of the cleaning motor 136, the rotation speed of the cleaning member 131a connected to the cleaning motor 136 can vary. Therefore, the cleaning intensity of the filter cleaning device 130 can vary.

[0286] For example, refer to Fig.26, according to the start of drainage of the washing machine 10 or 10a, the first driving current A1 may be applied to the cleaning driver 135 for a sixth time f. Thereafter, the second driving current A2 may be applied to the cleaning driver 135 for a seventh time g. Fig.26 In the example, the first driving current A1 is shown to be greater than the second driving current A2, although not limited thereto. For example, the second driving current A2 may be greater than the first driving current A1. In addition, the sixth time f may be equal to the seventh time g or different from the seventh time g.

[0287] The above-mentioned times f and g may be preset values. The user may set the times a, b, c, d and e through the user interface 197 .

[0288] Fig.26 An example in which the driving current A of the cleaning drive device 135 changes periodically is shown, although not limited thereto. For example, the driving current A of the cleaning drive 135 may change irregularly over time. For example, the driving current A of the cleaning drive 135 may change regularly within a preset period and change irregularly within another preset period.

[0289] At the same time, if Figure 24 to Figure 26 As shown, the drainage start time of the washing machine can be set by the controller 191 of the filter device 100. Figure 24 to Figure 26 As shown, the drainage termination time of the washing machine can be set by the controller 191 of the filter device 100. However, the present disclosure is not limited thereto. The filter device 100 can receive information about the drainage start time and / or drainage termination time of the washing machine 10 or 10a by communicating with the washing machine 10 or 10a.

[0290] According to the filter device 100 or 100a of the embodiment of the present disclosure, it can be placed outside the washing machine 10 or 10a and can be connected to the drainage device 70 or 70a of the washing machine 10 or 10a. The filter device 100 or 100a may include a filter housing 110 having a housing inlet and a housing outlet, a filter 120 detachably mounted in the filter housing, a filter cleaning device 130 including a cleaning drive 135 for cleaning the filter, and a sensor 200 for detecting water entering the filter device from the drainage device. According to the present disclosure, since the filter device 100 or 100a is placed outside the washing machine 10 or 10a, the filter device 100 or 100a can be easily managed. According to the present disclosure, since the filter device 100 or 100a includes the filter cleaning device 130, the filter device 100 or 100a can extend the life cycle of the filter 120.

[0291] The filter device may further include a controller 191 for controlling the operation of the cleaning drive based on information obtained by the sensor. According to the present disclosure, since the filter device 100 or 100a includes the controller 191 for controlling the filter device 100 or 100a, the filter device 100 or 100a may be independently controlled. The filter device 100 or 100a may detect water entering the filter device 100 or 100a to effectively clean the filter 120. According to the present disclosure, the cleaning efficiency of the filter 120 may be improved.

[0292] The controller may operate the cleaning drive based on detection of a preset condition by the sensor.

[0293] The preset condition may include a case where the water level of water contained in the filter case is equal to or higher than the height of the lowermost end L of the filter.

[0294] The controller may stop operating the cleaning drive based on the sensor detecting a preset condition.

[0295] The filter housing 110 may form a first space S1 in which a filter is installed and a second space S2 which is placed below the first space and receives water received through the housing inlet and flows toward the first space.

[0296] The sensor 200 may detect at least one of water flowing through the housing inlet or water contained in the second space.

[0297] The cleaning driver may include a cleaning motor 136. The filter cleaning device may include a cleaning member 131 that receives power from the cleaning motor and is capable of rotating while being in contact with a surface of the filter through which foreign matter is filtered.

[0298] The outer diameter of the cleaning member 131 may be greater than the inner diameter of the filter.

[0299] The sensor may be installed on an outer surface of the filter case corresponding to the second space and detect water contained in the second space.

[0300] The sensor may include a float 202 at least a portion of which is seated in the second space and floated by water received through the housing inlet.

[0301] The sensor may include a rotating body 203 that is placed in the housing inlet and that can be rotated by water flowing through the housing inlet.

[0302] The sensor may include a first electrode portion 2041 installed in the inlet of the housing and a second electrode portion 2051 spaced apart from the first electrode portion, and may detect conductivity between the first electrode portion and the second electrode portion.

[0303] The sensor may include a first electrode portion 2041 disposed in the second space and a second electrode portion 2051 spaced apart from the first electrode portion, and may detect conductivity between the first electrode portion and the second electrode portion.

[0304] The filter device may include a connection pipe 206 to move water present in the filter housing, one end of the connection pipe 206 being communicated with the filter housing and the other end of the connection pipe 206 being connected to the sensor. The sensor may detect a change in the internal pressure of the connection pipe.

[0305] In the control method of the filter device according to the embodiment of the present disclosure, the filter device may be installed outside the washing machine, may be connected to the drainage device of the washing machine, and includes a filter 120, a filter cleaning device 130 including a cleaning driver 135 for cleaning the filter, and at least one sensor 200 for detecting water entering the filter device. The control method of the filter device may include controlling the cleaning driver of the filter cleaning device based on a signal detected by the at least one sensor.

[0306] Controlling the cleaning drive may include operating the cleaning drive based on detection of a preset condition by the at least one sensor.

[0307] Controlling the cleaning drive may include stopping operation of the cleaning drive based on detection of a preset condition by the at least one sensor.

[0308] The laundry treatment device 1 or 1a according to an embodiment of the present disclosure may include a washing machine 10 or 10a and a filter device 100 or 100a. The washing machine may include a washing machine housing, a tub disposed in the washing machine housing, and a drainage device for discharging water stored in the tub to the outside of the washing machine housing. The filter device may be placed outside the washing machine housing and may be connected to the drainage device of the washing machine. The filter device may include a filter housing 110, a filter 120 that can be detachably mounted in the filter housing, a filter cleaning device 130 including a cleaning drive 135 configured to clean the filter, a sensor 200 configured to detect water entering the filter device, and a controller 191 configured to control the operation of the filter cleaning device based on information obtained by the sensor.

[0309] The filter housing may include a housing inlet 112a through which water is received from the drain device and a housing outlet 111b through which water passing through the filter is discharged. The controller 191 may operate the cleaning drive 135 of the filter cleaning device 130 based on a sensor detecting a preset water level of water received through the housing inlet or collected in the filter housing.

[0310] So far, specific embodiments have been shown, however, the present disclosure is not limited to these embodiments. It should be understood that a person skilled in the art can make various modifications without departing from the technical concept of the present disclosure defined by the following claims.

Claims

1. A filter device capable of being placed outside a washing machine and connected to a drainage device of the washing machine, the filter device comprising: a filter housing, comprising a housing inlet and a housing outlet; a filter, which can be detachably mounted in the filter housing, through which water flowing from the housing inlet to the housing outlet passes; a sensor configured to detect water entering the filter device from the drain device and generate a corresponding signal; and The filter cleaning device is configured to clean the filter according to the signal generated by the sensor.

2. The filter device according to claim 1, further comprising: A controller is configured to control the operation of the filter cleaning device based on the signal generated by the sensor.

3. The filter device according to claim 2, wherein The controller is configured to operate the filter cleaning device based on detecting a predetermined condition based on the signal generated by the sensor.

4. The filter device according to claim 2, wherein The controller is configured to stop operating the filter cleaning device based on detecting a predetermined condition based on the signal generated by the sensor.

5. The filter device according to claim 3, wherein The preset condition includes that the water level in the filter housing is equal to or higher than the height of the lowest end of the filter when the filter is installed in the filter housing.

6. The filter device according to claim 1, wherein The filter housing comprises: a first space in which the filter can be installed, and A second space can be disposed below the first space to contain water received through the housing inlet and flowing toward the first space.

7. The filter device according to claim 6, wherein The sensor is configured to detect at least one of water passing through the housing inlet or water contained in the second space.

8. The filter device of claim 1, wherein The filter cleaning device comprises: Clean the drive, including cleaning the motor, and a cleaning member configured to rotatably contact a surface of the filter through which foreign matter is filtered when the filter is installed in the filter housing, Wherein, the cleaning driver is configured to drive the rotation of the cleaning member using power generated by the cleaning motor.

9. The filter device according to claim 8, wherein The outer diameter of the cleaning member is greater than the inner diameter of the filter.

10. The filter device according to claim 6, wherein The sensor is installed on an outer surface of the filter case corresponding to the second space, and is configured to detect water contained in the second space.

11. The filter device according to claim 6, wherein The sensor includes a float configured to float in water received through the housing inlet, with at least a portion of the float disposed in the second space.

12. The filter device of claim 1, wherein The sensor includes a rotating body disposed in the housing inlet and configured to be rotated by water passing through the housing inlet.

13. The filter device of claim 1, wherein The sensor comprises: a first electrode portion disposed in the housing inlet, and a second electrode portion spaced apart from the first electrode portion, and The sensor is configured to detect electrical conductivity between the first electrode portion and the second electrode portion.

14. The filter device of claim 6, wherein The sensor comprises: a first electrode portion disposed in the second space, and a second electrode portion spaced apart from the first electrode portion, and The sensor is configured to detect electrical conductivity between the first electrode portion and the second electrode portion.

15. The filter device of claim 1, further comprising: a connecting pipe configured to receive water from the filter housing into the connecting pipe, Wherein, the first end of the connecting pipe is communicated with the filter housing, The second end of the connecting tube is connected to the sensor, and The sensor is configured to detect a change in the internal pressure of the connecting pipe.

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