Clothing processing device and method for controlling same

Abstract

The clothing processing device according to an embodiment comprises: a tub; a diaphragm provided in an opening of the tub; a circulation pump which comprises a pump motor, discharges water stored in the tub, and circulates the discharged water to the tub; a first pipe connected to the upper side of the diaphragm; a second pipe connected to the lower side of the tub; and a processor configured to control the pump motor according to execution of a washing course, identify a feedback voltage value of the pump motor, and control a flow path switching device on the basis of the identified feedback voltage value so that the discharged water is guided to the first pipe or the second pipe.

Description

Clothing processing device and control method thereof

[0001] The disclosed invention relates to a clothing processing apparatus including a drying device and a method for controlling the same.

[0002] A garment processing device is a device for processing and / or managing garments. The garment processing device may include a washing machine and a dryer. The washing machine may include a combined washing machine and dryer.

[0003] A washing machine with a dryer function is a device that utilizes the driving force of a drum motor to agitate laundry, water, and detergent placed inside a tub, thereby enabling washing through mutual friction.

[0004] The processes performed by a washing machine combined with a dryer may include a washing process in which detergent and water are supplied to a tub containing laundry and the laundry is washed while the drum is rotated, a rinsing process in which water is supplied to the tub and the drum is rotated to rinse the laundry, and a spin-drying process in which water is discharged from the tub and the drum is rotated to remove moisture from the laundry.

[0005] The operation performed by the combined dryer and washing machine may include a drying operation in which heat generated from a drying device is blown into a receiving space containing the laundry to dry the laundry. To perform the drying operation, the combined dryer and washing machine may include a drying device.

[0006] The disclosed invention provides a garment processing device and a control method thereof capable of detecting narrowing and / or blockage of a flow path for circulating water stored in a tub.

[0007] The disclosed invention provides a garment processing device and a control method thereof that can optimize the operation of the garment processing device to maintain washing performance when a narrowing and / or blockage of the flow path for circulating water stored in a tub occurs.

[0008] The disclosed invention provides a garment processing device and a control method thereof that can automatically perform a cleaning process to resolve narrowing and / or blockage of a flow path for circulating water stored in a tub.

[0009] The disclosed invention provides a garment processing device and a control method thereof that can provide a user with information regarding the narrowing and / or blockage of a flow path for circulating water stored in a tub.

[0010] A garment processing device according to one embodiment may include: a tub; a diaphragm provided in an opening of the tub; a circulation pump including a pump motor that discharges water stored in the tub and circulates the discharged water to the tub; a first pipe connected to the upper side of the diaphragm; a second pipe connected to the lower side of the tub; a flow path switching device that guides the discharged water to the first pipe or the second pipe; and a processor. The processor may control the pump motor according to the execution of a washing course, identify a feedback voltage value obtained from the pump motor, and control the flow path switching device so that the discharged water is guided to the first pipe or the second pipe based on the identified feedback voltage value.

[0011] A method for controlling a garment processing device comprising: a tub; a diaphragm provided in an opening of the tub; a circulation pump including a pump motor that discharges water from the tub and circulates the discharged water back to the tub; a first pipe connected to the upper side of the diaphragm; a second pipe connected to the lower side of the tub; and a flow path switching device that guides the water to the first pipe or the second pipe, the method may include: a step of controlling the pump motor according to the execution of a washing course; a step of identifying a feedback voltage value obtained from the pump motor; and a step of controlling the flow path switching device so that the discharged water is guided to the first pipe or the second pipe based on the identified feedback voltage value.

[0012] The disclosed garment processing device and its control method can optimize the operation of the garment processing device to maintain washing performance when narrowing and / or blockage of the flow path for circulating water stored in the tub occurs.

[0013] The disclosed garment processing device and its control method can reduce unnecessary power consumption and reduce the occurrence of component failures by reducing and / or stopping the operation of components related to a passage where stenosis and / or blockage have occurred.

[0014] The disclosed clothing processing device and its control method can minimize the reduction in washing performance by automatically performing a cleaning process to resolve the narrowing and / or blockage of the water flow path for circulating water stored in the tub.

[0015] The disclosed clothing processing device and its control method can improve user convenience and product reliability by providing the user with information regarding the narrowing and / or blockage of the flow path for circulating water stored in a tub.

[0016] FIG. 1 illustrates a clothing processing device according to one embodiment.

[0017] FIG. 2 illustrates a cross-section of a clothing processing device according to one embodiment.

[0018] FIG. 3 illustrates the components arranged inside a clothing processing device according to one embodiment as viewed from a first direction.

[0019] FIG. 4 illustrates the components arranged inside a clothing processing device according to one embodiment as viewed from a second direction.

[0020] FIG. 5 illustrates components used to circulate water stored in a tub among the components of a clothing processing device according to one embodiment.

[0021] FIG. 6 is a control block diagram of a clothing processing device according to one embodiment.

[0022] FIG. 7 is a graph showing the feedback voltage of the pump motor and the rotational speed of the pump motor when the condition of the circulation path included in the clothing processing device according to one embodiment is normal.

[0023] FIG. 8 is a graph showing the feedback voltage of the pump motor and the rotational speed of the pump motor when the condition of the circulation path included in the clothing processing device according to one embodiment is abnormal.

[0024] FIG. 9 is a table showing flow setting information for controlling a flow switching device in a washing operation and / or rinsing operation.

[0025] FIG. 10 is a flowchart illustrating an example of an operation course executed by a clothing processing device according to one embodiment.

[0026] FIG. 11 is a flowchart illustrating a control method of a clothing processing device according to one embodiment.

[0027] FIG. 12 is a flowchart that explains in more detail the control method of the clothing processing device described in FIG. 11.

[0028] Figure 13 is a flowchart that explains the cleaning process described in Figure 11 in more detail.

[0029] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments.

[0030] In relation to the description of the drawings, similar reference numerals may be used for similar or related components.

[0031] The singular form of the noun corresponding to the item may include one or multiple items, unless the relevant context clearly indicates otherwise.

[0032] In this document, each of the 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 one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0033] The term "and / or" includes a combination of multiple related described components or any of the multiple related described components.

[0034] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from another component and do not limit the components in other aspects (e.g., importance or order).

[0035] Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0036] Terms such as "include" or "have" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this document, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0037] When it is said that a component is "connected," "combined," "supported," or "in contact" with another component, this includes not only cases where the components are directly connected, combined, supported, or in contact, but also cases where they are indirectly connected, combined, supported, or in contact through a third component.

[0038] When it is said that a component is located "on" another component, this includes not only cases where one component is in contact with the other, but also cases where another component exists between the two components.

[0039] A washing machine according to various embodiments can perform washing, rinsing, spin-drying, and drying operations. A washing machine is an example of a clothing processing device, and a clothing processing device is a concept that encompasses a device for washing clothing (clothing to be washed, clothing to be dried), a device for drying clothing, and a device capable of performing both washing and drying of clothing.

[0040] Washing machines according to various embodiments may include a top-loading washing machine in which a laundry inlet for loading or unloading laundry is provided to face upward, or a front-loading washing machine in which a laundry inlet is provided to face forward. Washing machines according to various embodiments may include washing machines with loading methods other than top-loading washing machines and front-loading washing machines.

[0041] In the case of a top-loading washing machine, laundry can be washed using a water flow generated by a rotating body such as a pulsator. In the case of a front-loading washing machine, laundry can be washed by rotating the drum to repeatedly raise and lower the laundry. A front-loading washing machine may include a washing machine capable of drying laundry contained inside the drum. The washing machine capable of drying may include a hot air supply device for supplying high-temperature air into the drum and a condensation device for removing moisture from the air discharged from the drum. As an example, the washing machine capable of drying may include a heat pump device. Washing machines according to various embodiments may include washing machines with washing methods other than those described above.

[0042] A washing machine according to various embodiments may include a housing that accommodates various components inside. The housing may be provided in the form of a box with a laundry input opening formed on one side.

[0043] The washing machine may include a door for opening and closing a laundry input. The door may be rotatably mounted to the housing by means of a hinge. At least one part of the door may be made transparent or translucent so that the interior of the housing is visible.

[0044] The washing machine may include a tub provided inside the housing to store water. The tub is provided in a roughly cylindrical shape with a tub opening formed on one side, and may be positioned inside the housing such that the tub opening corresponds to the laundry inlet.

[0045] The tub can be connected to the housing by a damper. The damper can absorb vibrations generated during the rotation of the drum and attenuate vibrations transmitted to the housing.

[0046] The washing machine may include a drum designed to accommodate laundry.

[0047] The drum may be positioned inside the tub such that a drum opening provided on one side corresponds to a laundry inlet and a tub opening. Laundry may pass through the laundry inlet, the tub opening, and the drum opening in sequence to be received inside the drum or withdrawn from the drum.

[0048] The drum can rotate inside the tub and perform respective actions according to the washing, rinsing, and / or spin-drying cycles. A number of through holes are formed in the cylindrical wall of the drum so that water stored in the tub can flow into the interior of the drum or out of the exterior of the drum.

[0049] The washing machine may include a drive unit configured to rotate the drum. The drive unit may include a drum motor and a rotating shaft for transmitting the driving force generated by the drum motor to the drum. The rotating shaft may pass through the tub and be connected to the drum.

[0050] The drive unit can rotate the drum in the forward or reverse direction to perform each operation according to washing, rinsing, and / or spin-drying, or drying operations.

[0051] The washing machine may include a water supply device configured to supply water to the tub. The water supply device may include a water supply pipe and a water supply valve provided in the water supply pipe. The water supply pipe may be connected to an external water source. The water supply pipe may extend from the external water source to a detergent dispenser and / or the tub. Water may be supplied to the tub via the detergent dispenser. Water may be supplied to the tub without passing through the detergent dispenser.

[0052] The water supply valve can open or close the water supply pipe in response to an electrical signal from the control unit. The water supply valve can allow or block the supply of water from an external water source to the tub. The water supply valve may include, for example, a solenoid valve that opens and closes in response to an electrical signal.

[0053] The washing machine may include a detergent dispenser configured to supply detergent to the tub. The detergent dispenser may include a manual detergent dispenser in which the user must add the detergent to be used for each wash cycle, and an automatic detergent dispenser that stores a large amount of detergent and automatically dispenses a predetermined amount during a wash cycle. The detergent dispenser may include a detergent container for storing detergent. The detergent dispenser may be configured to supply detergent into the tub during the water supply process. Water supplied through the water supply pipe may be mixed with the detergent by passing through the detergent dispenser. The water mixed with the detergent may be supplied into the tub. The term "detergent" is used as a collective term for pre-wash detergent, main wash detergent, fabric softener, bleach, etc., and the detergent container may be divided into a pre-wash detergent storage area, a main wash detergent storage area, a fabric softener storage area, and a bleach storage area.

[0054] The washing machine may include a drainage device configured to discharge water contained in a tub to the outside. The drainage device may include a drain pipe extending from the bottom of the tub to the outside of the housing, a drain valve provided in the drain pipe to open and close the drain pipe, and a pump provided on the drain pipe. The pump may pump water from the drain pipe to the outside of the housing.

[0055] The washing machine may include a control panel disposed on one side of the housing. The control panel may provide a user interface for the user to interact with the washing machine. The user interface may include at least one input interface and at least one output interface.

[0056] At least one input interface can convert sensory information received from a user into an electrical signal. At least one input interface may include a power button, an operation button, a course selection dial (or course selection button), and a wash / rinse / spin setting button. At least one input interface may include, for example, a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a jog dial, and / or a microphone.

[0057] At least one output interface can visually or audibly convey information related to the operation of the washing machine to the user. For example, at least one output interface can convey information related to the operation course, the washing machine's operating time, and washing settings / rinse settings / spin settings to the user. Information regarding the operation of the washing machine may be output via a screen, indicator, voice, etc. At least one output interface may include, for example, a Liquid Crystal Display (LCD) panel, a Light Emitting Diode (LED) panel, a speaker, etc.

[0058] The washing machine may include a communication module for communicating with an external device via wired and / or wireless means.

[0059] The communication module may include at least one of a short-range communication module or a long-range communication module.

[0060] The communication module can transmit data to external devices (e.g., servers, user devices, and / or home appliances) or receive data from external devices. For example, the communication module can establish communication with servers and / or user devices and / or home appliances and transmit and receive various types of data.

[0061] To this end, the communication module may support the establishment of a direct (e.g., wired) or wireless communication channel between external devices, and the performance of communication through the established communication channel. According to one embodiment, the communication module may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a GNSS (global navigation satellite system) communication module) or a wired communication module (e.g., a LAN (local area network) communication module, or a power line communication module). The corresponding communication module among these communication modules may communicate with an external device through a first network (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (e.g., a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a long-range communication network such as a computer network (e.g., a LAN or WAN). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips).

[0062] A short-range wireless communication module may include, but is not limited to, Bluetooth communication modules, BLE (Bluetooth Low Energy) communication modules, Near Field Communication modules, WLAN (Wi-Fi) communication modules, Zigbee communication modules, infrared (IrDA, infrared Data Association) communication modules, WFD (Wi-Fi Direct) communication modules, UWB (ultrawideband) communication modules, Ant+ communication modules, microwave (uWave) communication modules, etc.

[0063] The remote communication module may include a communication module that performs various types of remote communication and may include a mobile communication unit. The mobile communication unit transmits and receives wireless signals with at least one of a base station, an external terminal, and a server on a mobile communication network.

[0064] In one embodiment, the communication module can communicate with external devices, such as a server, a user device, or other home appliances, through a nearby access point (AP). The access point (AP) can connect a local area network (LAN) to which the washing machine or user device is connected to a wide area network (WAN) to which the server is connected. The washing machine or user device can be connected to the server through the wide area network (WAN). The control unit can control various components of the washing machine (e.g., drum motor, water supply valve). The control unit can control various components of the washing machine to perform at least one operation, including water supply, washing, rinsing, and / or spin-drying, according to user input. For example, the control unit can control the drum motor to adjust the rotation speed of the drum or control the water supply valve of the water supply device to supply water to the tub.

[0065] The control unit may include hardware such as a CPU or memory, and software such as a control program. For example, the control unit may include an algorithm for controlling the operation of components within the washing machine, at least one memory for storing data in the form of a program, and at least one processor for performing the aforementioned operation using data stored in at least one memory. The memory and the processor may each be implemented as separate chips. The processor may include one or more processor chips or one or more processing cores. The memory may include one or more memory chips or one or more memory blocks. Additionally, the memory and the processor may be implemented as a single chip.

[0066] Hereinafter, a garment processing device according to various embodiments will be described in detail with reference to the attached drawings. In the following description, a washing machine combined with a dryer is described as an example of a garment processing device, but the concept of the present disclosure is not limited to a washing machine combined with a dryer and can be applied to various devices for processing and / or managing garments.

[0067] The terms "front," "rear," "left," and "right" used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms.

[0068] For example, the X-axis direction can be defined as the front-back direction as the first direction. The Y-axis direction can be defined as the left-right direction as the second direction. The Z-axis direction can be defined as the up-down direction as the third direction.

[0069] FIG. 1 illustrates a clothing processing device according to one embodiment. FIG. 2 illustrates a cross-section of a clothing processing device according to one embodiment. FIG. 3 illustrates components arranged inside a clothing processing device according to one embodiment as viewed from a first direction. FIG. 4 illustrates components arranged inside a clothing processing device according to one embodiment as viewed from a second direction. FIG. 5 illustrates components among the components of a clothing processing device according to one embodiment that are used to circulate water stored in a tub.

[0070] Referring to FIGS. 1, 2, 3, 4, and 5, a clothing processing device (1) according to various embodiments may include a housing (10) that accommodates various components inside. The housing (10) may be provided in the form of a box with a laundry inlet (11) formed on one side. The laundry inlet (11) may be provided to face approximately forward.

[0071] The clothing processing device (1) may include a user interface (15) disposed on one side of the housing (10). The user interface (15) may be provided to allow the user and the clothing processing device (1) to interact. The user interface may include at least one input interface and at least one output interface.

[0072] For example, at least one input interface can convert sensory information received from a user into an electrical signal. At least one input interface may include a power button, an operation button, a course selection dial (or course selection button), and a wash / rinse / spin setting button. At least one input interface may include, for example, a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a jog dial, and / or a microphone.

[0073] At least one output interface can visually or audibly convey information related to the operation of the garment processing device (1) to the user. For example, at least one output interface can convey information related to the washing course and the operating time of the garment processing device (1), as well as washing settings, rinsing settings, and spin settings to the user. Information regarding the operation of the garment processing device may be output via a screen, an indicator, voice, etc. At least one output interface may include, for example, a Liquid Crystal Display (LCD) panel, a Light Emitting Diode (LED) panel, a speaker, etc.

[0074] The clothing processing device (1) may include a control circuit (16) for controlling a user interface (15). The control circuit (16) may be electrically connected to the user interface (15). The control circuit (16) may supply power to the user interface (15). The control circuit (16) may process information input through the user interface (15). The control circuit (16) may control the user interface (15) so that the user interface (15) outputs information.

[0075] The garment processing device (1) may include a laundry door (17) for opening and closing a laundry input port (11). The laundry door (17) may be rotatably mounted to the housing (10) by means of a hinge. At least one part of the laundry door (17) may be made transparent or translucent so that the interior of the housing (10) is visible. For example, the laundry door (17) may include tempered glass.

[0076] The clothing processing device (1) may include a lower door (18) configured to allow access to a lower detergent supply device (60). The clothing processing device (1) may include an upper door (19) configured to allow access to an upper detergent supply device (50) and a filter (95).

[0077] The clothing processing device (1) may include a tub (20) provided inside a housing (10) to store water. The tub (20) is provided in a roughly cylindrical shape with a tub opening (21) formed on one side, and may be placed inside the housing (10) such that the tub opening (21) corresponds to the laundry input port (11). The tub opening (21) may be provided to face approximately forward.

[0078] The tub (20) can be connected to the housing (10) by a damper (25). The damper (25) can absorb vibrations generated when the drum (30) rotates and attenuate vibrations transmitted to the housing (10).

[0079] The garment processing device (1) may include a diaphragm (22) for connecting the tub (20) and the housing (10). For example, the diaphragm (22) may extend between the laundry inlet (11) of the housing (10) and the tub opening (21) of the tub (20). The diaphragm (22) may be detachably mounted to the tub opening (21) of the tub (20). The diaphragm (22) may reduce the transmission of vibrations from the tub (20) to the housing (10). For example, the diaphragm (22) may include a material that is more flexible than the housing (10) and the tub (20).

[0080] The garment processing device (1) may include a drum (30) provided to receive laundry. At least one lifter (33) may be provided inside the drum (30) to perform washing by raising and dropping the laundry.

[0081] The drum (30) may be positioned inside the tub (20) such that a drum opening (31) provided on one side corresponds to a laundry inlet (11) and a tub opening (21). Laundry may be received inside the drum (30) or withdrawn from the drum (30) by passing through the laundry inlet (11), diaphragm (22), tub opening (21), and drum opening (31) in sequence. The drum opening (31) may be provided to face approximately forward.

[0082] The drum (30) can rotate inside the tub (20) and perform each operation according to washing, rinsing, and / or spin-drying cycles. A plurality of through holes (32) are formed in the cylindrical wall of the drum (30) so that water stored in the tub (20) can flow into the interior of the drum (30) or flow out of the drum (30).

[0083] The garment processing device (1) may include a drum motor (36) configured to rotate the drum (30). The garment processing device (1) may include a rotating shaft for transmitting the driving force generated by the drum motor (36) to the drum (30). The rotating shaft may pass through the tub (20) and be connected to the drum (30). The drum motor (36) may rotate the drum (30) in the forward or reverse direction during a washing operation, a rinsing operation, a spin-drying operation, and / or a drying operation.

[0084] The garment processing device (1) may include a water supply device (40) configured to supply water to the tub (20). The water supply device (40) may be connected to an external water source. The water supply device (40) may include water supply valves (41, 42) that can be connected to an external water source. For example, the water supply valves (41, 42) may include a first water supply valve (41) and a second water supply valve (42). The first water supply valve (41) may correspond to a hot water valve for supplying hot water to the tub (20). The second water supply valve (42) may correspond to a cold water valve for supplying cold water to the tub (20).

[0085] The water supply device (40) may include water supply pipes (43, 44). The water supply pipes (43, 44) may be connected to water supply valves (41, 42). For example, the water supply pipes (43, 44) may include a first water supply pipe (43) and a second water supply pipe (44). As an example, the water supply pipes (43, 44) may be provided as hoses or pipes made of a flexible material. The first water supply pipe (43) may correspond to a hot water pipe connected to the first water supply valve (41). The second water supply pipe (44) may correspond to a cold water pipe connected to the second water supply valve (42).

[0086] At least one of the water supply pipes (43, 44) can guide water from the water supply valve (41, 42) to the tub (20). At least one of the water supply pipes (43, 44) can extend from the water supply valve (62) to the tub (20). For example, water can be supplied to the lower detergent supply device (60) through the tub (20). Water can also be supplied to the lower detergent supply device (60) without passing through the tub (20).

[0087] The water supply valves (41, 42) can open or close the water supply pipes (43, 44) in response to an electrical signal from the control unit. The water supply valves (41, 42) can allow or block the supply of water from an external water source to the tub (20). For example, the water supply valves (41, 42) may include a solenoid valve that opens and closes in response to an electrical signal.

[0088] The garment processing device (1) may include a washing water heater (24). The washing water heater (24) is provided on the lower side of the tub (20) to heat the washing water during washing. Additionally, the water supply device (40) can supply a certain amount of water to the lower side of the tub (20) through the exhaust passage (P) during the drying operation, and the washing water heater (24) can generate steam by heating the water supplied into the interior of the tub (20) through the water supply device (40), the exhaust passage (P), and the tub exhaust port (27). That is, the steam generated by the water supply device (40) and the washing water heater (24) can come into contact with the garment during the drying operation, thereby minimizing the formation of wrinkles on the garment.

[0089] That is, the clothing processing device (1) is a washing / drying combined washing machine and, unlike a conventional dryer, may include a washing water heater (24) for heating the washing water, and by utilizing the washing water heater (24) and a water supply device (40) for cleaning the exhaust path (P), steam can be generated to minimize the formation of wrinkles on the clothing during the drying operation.

[0090] The garment processing device (1) may include a detergent supply device (50, 60) configured to supply detergent to a tub (20). The detergent supply device (50, 60) may include an upper detergent supply device (50) and a lower detergent supply device (60). The term "detergent" may be used as a general term encompassing pre-wash detergent, main wash detergent, fabric softener, bleach, etc.

[0091] The upper detergent supply device (50) may be located on the upper part of the tub (20). The upper detergent supply device (50) may be located above the tub (20) in the vertical direction. The upper detergent supply device (50) may include a manual detergent supply device in which the user must add the detergent to be used each time laundry is performed, and / or an automatic detergent supply device that stores a large amount of detergent and automatically dispenses a predetermined amount of detergent during laundry. The upper detergent supply device (50) may be connected to the tub (20) through a detergent connecting pipe (51). For example, the upper detergent supply device (50) may be configured to supply solid laundry detergent and / or fabric softener, etc., to the tub (20). The type of detergent is not limited to the above examples.

[0092] The lower detergent supply device (60) may be located at the bottom of the tub (20). The lower detergent supply device (60) may be located below the tub (20) in the vertical direction. The lower detergent supply device (60) may include a manual detergent supply device in which the user must add the detergent to be used each time laundry is done, and / or an automatic detergent supply device that stores a large amount of detergent and automatically dispenses a predetermined amount of detergent during laundry. For example, the lower detergent supply device (60) may be provided to supply liquid laundry detergent and / or fabric softener, etc., to the tub (20). However, the type of detergent is not limited to the above examples.

[0093] The clothing processing device (1) may include a drying device (80) for drying laundry contained inside a drum (30). The drying device (80) may be configured to heat air and supply it into the interior of a tub (20). The drying device (80) may be configured to dry and heat the air discharged from the tub (20), and to circulate the dried and heated air into the interior of the tub (20) to dry the clothing inside the drum (30). According to various embodiments, the drying device (80) may be positioned above the tub (20).

[0094] The drying device (80) may include a drying case (81) on which a heat pump for drying air may be installed. The drying case (81) may include a drying base (81a) and a drying cover (81b) coupled to the drying base (81a) and arranged to form a flow path through which air can move. The drying cover (81b) may cover at least a portion of the open upper surface of the drying base (81a).

[0095] The drying device (80) may be provided as a heat pump system. The drying device (80) may include a compressor (91), a condenser (92), an evaporator (93), an expansion valve, and a refrigerant pipe (94) through which refrigerant circulates. The compressor (91), the condenser (92), the evaporator (93), and the expansion valve may be placed in a drying case (81). The drying device (80) may include a cooling fan (91a) for cooling the compressor (91). As an example, the drying device (80) may be mounted as a single module.

[0096] The compressor (91) compresses the refrigerant, and the compressed high-temperature, high-pressure refrigerant can move to the condenser (92). The condenser (92) can cool the refrigerant and heat the surrounding air. The heated air flows into the interior of the drum (30) to dry the clothes.

[0097] The refrigerant expanded by passing through the expansion valve can absorb heat in the evaporator (93) and cool the surrounding air. That is, the evaporator (93) can cool the high-temperature, high-humidity air that has passed through the inside of the drum (30) to remove moisture. The air from which moisture has been removed passes through the condenser (92) and can be heated again by exchanging heat with the refrigerant passing through the condenser (92). That is, the condenser (92) can heat the air that has passed through the evaporator (93). The condenser (92) and the evaporator (93) can be referred to as heat exchangers. The condenser (92) can be referred to as the 'first heat exchanger'. The evaporator (93) can be referred to as the 'second heat exchanger'.

[0098] The drying device (80) may include an inlet guide (84) connected to the tub (20). The inlet guide (84) may guide air discharged from the tub (20) into the interior of the drying case (81). The inlet guide (84) may be in communication with an exhaust passage (P) formed in the tub (20). Air passing through the exhaust passage (P) may be introduced into the interior of the drying device (80) through the inlet guide (84).

[0099] A first end of the inlet guide (84) may be connected to the tub (20), and a second end opposite to the first end of the inlet guide (84) may be connected to the drying case (81). For example, the inlet guide (84) may be provided to reduce the transmission of vibrations from the tub (20) to the drying device (80). The inlet guide (84) may comprise a material that is more flexible than the tub (20) and / or the drying case (81).

[0100] The drying device (80) may include a filter (95) for filtering foreign substances, such as lint, contained in the air flowing in from the tub (20) through the exhaust passage (P). Air flowing into the interior of the drying device (80) through the inlet guide (84) may pass through the filter (95) and then move to the evaporator (93) and condenser (92). The filter (95) may be located on the passage where the air flowing into the drying device (80) moves to the evaporator (93) and condenser (92). The filter (95) may be detachably mounted on the drying case (81).

[0101] The condenser (92) and evaporator (93) can be mounted in the drying case (81). The air flowing from the tub (20) into the drying device (80) may be humid air as it passes through the interior of the tub (20) and dries the laundry. The humid air can be cooled in the evaporator (93) of the drying device (80) to remove moisture. The air from which moisture has been removed in the evaporator (93) can be heated again as it passes through the condenser (92).

[0102] The drying device (80) may include a nozzle device (96) for cleaning the condenser (92) and / or evaporator (93). For example, the nozzle device (96) may be mounted on the drying cover (81b) of the drying case (81). The nozzle device (96) may be located above the condenser (92) and / or evaporator (93). The nozzle device (96) may receive water from the water supply device (40) and spray cleaning water toward the condenser (92) and / or evaporator (93).

[0103] The clothing processing device (1) may include a drain connection pipe (97) for guiding water discharged from the drying device (80). The drain connection pipe (97) may guide condensate generated in the heat exchangers (92, 93) of the drying device (80) to the outside of the drying device (80). The drain connection pipe (97) may guide washing water sprayed by the nozzle device (96) for cleaning the heat exchangers (92, 93) to the outside of the drying device (80). For example, the drain connection pipe (97) may be connected to a drainage device (70). Water discharged from the drying device (80) may flow to the drainage device (70) along the drain connection pipe (97). Water flowing into the drainage device (70) through the drain connection pipe (97) may be discharged to the outside of the clothing processing device (1).

[0104] The drying device (80) may include a fan device (100) for supplying heated air, which has passed through the condenser (92), back into the interior of the tub (20). The fan device (100) may be positioned on one side of the condenser (92). For example, the fan device (100) may be located on the second side, which is opposite to the first side where the evaporator (93) of the condenser (92) is located. The fan device (100) may extend forward and downward to supply heated air into the interior of the drum (30). Since the fan device (100) is located on the second side, which is opposite to the first side where the evaporator (93) of the condenser (92) is located, the clothing processing device (1) can secure space for the control circuit (16) located at the front end of the clothing processing device (1). The control circuit (16) can be located at the front end of the clothing processing device (1), between a part of the fan device (100) and the filter (95).

[0105] The fan device (100) may be connected to a diaphragm (22). The air discharge end of the fan device (100) may be connected to the diaphragm (22). The diaphragm (22) may include a diaphragm connection part (22a) connected to the end of the fan device (100). Air discharged from the fan device (100) may be supplied into the interior of the drum (30) through the diaphragm connection part (22a).

[0106] As the drying device (80) is connected to the tub (20), air for drying laundry inside the drum (30) can circulate between the drying device (80) and the tub (20). Air discharged from the tub (20) can be supplied into the interior of the tub (20) after passing through the drying device (80) located above the tub (20).

[0107] The heated air from the drying device (80) can be supplied into the interior of the drum (30). To increase the contact between the heated air supplied into the interior of the drum (30) and the laundry, the tub exhaust port (27) may be provided at a position opposite to the diaphragm connection (22a) that guides the heated air from the drying device (90) to the tub (20). For example, the diaphragm connection (22a) may be located at the front of the tub (20), and the tub exhaust port (27) may be located at the rear of the tub (20).

[0108] By having the diaphragm connection part (22a) and the tub exhaust port (27) positioned facing each other with respect to the tub (20), the distance and / or time for heated air to flow inside the drum (30) can be increased, the contact between the heated air and the laundry can be increased, and the drying efficiency and / or drying performance can be increased.

[0109] The garment processing device (1) may further include an exhaust passage (P) for air discharged from the inside of the tub (20) to flow to the drying device (80). The exhaust passage (P) may be provided so that air discharged from the tub exhaust port (27) flows to the inlet guide (84) of the drying device (80). The exhaust passage (P) may be provided to discharge humid air that has passed through the tub (20). For example, the exhaust passage (P) may be provided at the rear of the tub (20).

[0110] The air inside the tub (20) can be discharged into the tub duct (28) through the tub exhaust port (27) formed at the rear of the tub (20). The air discharged into the tub duct (28) can flow along the exhaust path (P) and be supplied to the drying device (80).

[0111] A garment processing device (1) according to various embodiments may include a tub duct (28) for forming at least a portion of an exhaust passage (P). For example, the tub duct (28) may be formed integrally with the tub (20). For example, the tub (20) may include the tub duct (28). The tub duct (28) may be arranged to surround the tub exhaust port (27).

[0112] A garment processing device (1) according to various embodiments may include a duct cover (29) for forming at least a portion of an exhaust passage (P). The duct cover (29) may be provided to cover the open rear of a tub duct (28). For example, a tub (20) may include a duct cover (29). The duct cover (29) may form at least a portion of the exhaust passage (P) through which air discharged through the tub exhaust port (27) flows to a drying device (80).

[0113] The garment processing device (1) may include a tub sealing member (29a) for sealing between the tub duct (28) and the duct cover (29). The tub sealing member (29a) may be provided along the perimeter of the tub duct (28) and / or the duct cover (29). The tub sealing member (29a) may include a material that is more flexible than the tub duct (28) and / or the duct cover (29).

[0114] In the clothing processing device (1) according to various embodiments, an exhaust passage (P) can be formed as a duct cover (29) is coupled to a tub duct (28).

[0115] A tub duct (28) according to one embodiment may include a recess (28a) that forms a part of an exhaust passage (P) through which air discharged from the inside of the tub (20) flows. A reinforcing rib (23) may be provided on the back surface of the tub (20) to reinforce the rigidity of the tub (20), and the recess (28a) may be provided as a recessed portion from the end of the reinforcing rib (23) protruding from the rear surface of the tub (20). The recess (28a) may be provided as a portion of the back surface of the tub (20) where the reinforcing rib (23) is not formed. A tub exhaust port (27) for discharging air from the inside of the tub (20) may be formed in the recess (28a).

[0116] The tub duct (28) may include a partition rib (28d) provided along the perimeter of the recess (28a). The partition rib (28d) can distinguish between the area where the reinforcing rib (23) is formed and the area where the recess (28a) is formed on the back side of the tub (20).

[0117] A tub duct (28) according to one embodiment may include a duct connection (28b) that forms another part of the exhaust passage (P) through which air passes through the recess (28a). The duct connection (28b) may protrude outward from the outer surface of the tub (20). The duct connection (28b) may protrude approximately upward from the outer surface of the tub (20).

[0118] The duct connection (28b) can connect the drying device (80) and the recess (28a). The duct connection (28b) can be connected to the inlet guide (84) of the drying device (80). The duct connection (28b) can form a single passage that forms an exhaust path (P) together with the recess (28a) and the duct cover (29).

[0119] The duct connection (28b) may be covered by a duct cover (29). One side of the duct connection (28b) may be open. The duct cover (29) may cover the open side of the duct connection (28b).

[0120] The duct cover (29) can cover both the recess section (28a) and the duct connection section (28b). For example, the duct cover (29) can cover both the open side of the recess section (28a) and the open side of the duct connection section (28b). An exhaust passage (P) can be formed by the duct cover (29) covering the recess section (28a) and the duct connection section (28b). As an example, the duct cover (29) may cover only the recess section (28a).

[0121] The duct cover (29) may be provided to cover the open rear of the recess (28a) and / or the open rear of the duct connection (28b). The exhaust passage (P) may be a single passage formed by the tub duct (28) and the duct cover (29) together.

[0122] The tub duct (28) may include a stepped portion (28c) to expand the cross-sectional area perpendicular to the direction of air flow in the exhaust passage (P). The exhaust passage (P) may be configured such that the width of the portion formed by the duct connection portion (28b) is greater than the width of the portion formed by the recess portion (28a) by the stepped portion (28c). The stepped portion (28c) may be formed such that the cross-sectional area perpendicular to the direction of air flow expands as it moves in the direction of air flow in the exhaust passage (P). The clothing processing device (1) can secure the size of the exhaust passage (P) by the stepped portion (28c) and efficiently utilize the internal space of the housing (10).

[0123] The placement location of the water supply valves (41, 42) can be determined by utilizing the remaining space through this mounting structure. For example, the water supply valves (41, 42) can be mounted between the inlet guide (84) and the cooling fan (91a). The water supply valves (41, 42) can be located in the center of the rear of the drying device (80). The water supply valves (41, 42) can be located behind the condenser (92). The water supply valves (41, 42) can be located in an area partitioned from the flow path through which the drying air flows. The location of the water supply valves (41, 42) is not limited thereto. For example, the water supply valves (41, 42) can be mounted at the rear end of the drying case (81).

[0124] The garment processing device (1) may include a drainage device (70) configured to discharge water contained in a tub (20) to the outside. The drainage device (70) may include a drainage pump (71) for discharging water from the tub (20) to the outside of the housing (10). The drainage device (70) may be connected to the tub (20) through a tub connecting pipe (72). Water inside the tub (20) may flow into the drainage pump (71) through the tub connecting pipe (72). The drainage device (70) may discharge water from the tub (20) to the outside of the housing (10) through a drain pipe (73).

[0125] The clothing processing device (1) may include a circulation pump (210) for circulating water stored in the tub (20) back to the tub (20). The circulation pump (210) may include a pump motor (211) for pumping water. When the pump motor (211) operates, water is discharged from the tub (20), and the water discharged from the tub (20) can be fed back into the tub (20) through the circulation pump (210). Depending on the operation of the circulation pump (210), the water discharged from the tub (20) may be fed into the tub (20) after passing through the lower detergent supply device (60).

[0126] The circulation pump (210) can be connected to the tub (20) through the tub connecting pipe (213). Water inside the tub (20) can be introduced into the circulation pump (210) through the tub connecting pipe (213). The tub connecting pipe (72) connecting the drainage device (70) and the tub (20) can be referred to as the first tub connecting pipe. The tub connecting pipe (213) connecting the circulation pump (210) and the tub (20) can be referred to as the second tub connecting pipe. One end of the second tub connecting pipe can be branched off from the first tub connecting pipe or directly connected to the tub (20).

[0127] The garment processing device (1) may include a flow path switching device (220) for guiding water discharged from a circulation pump (210) to the upper side of a diaphragm (22) or the lower side of a tub (20). The upper side of the diaphragm (22) may be defined at various positions higher than the origin of the circular diaphragm (22). The garment processing device (1) may include a first pipe (221) connected to the upper side of the diaphragm (22) and a second pipe (222) connected to the lower side of the tub (20). A nozzle connected to the first pipe (221) may be provided on the upper side of the diaphragm (22). The first pipe (221) may connect the upper side of the diaphragm (22) to the flow path switching device (220). The second pipe (222) may connect the lower side of the tub (20) to the flow path switching device (220). The first pipe (221) may be referred to as the ‘circulation path’. The second pipe may be referred to as the ‘bubble path’.

[0128] The circulation pump (210) can be connected to the flow path switching device (220) through the pump connecting pipe (214). Water discharged from the circulation pump (210) can be guided to the flow path switching device (220) through the pump connecting pipe (214).

[0129] The flow switching device (220) can guide water discharged from the tub (20) through the circulation pump (210) to the first pipe (221) or the second pipe (222). Depending on whether the flow switching device (220) is operated, the water flow path can be determined to be the first pipe (221) or the second pipe (222).

[0130] For example, when the Euro switching device (220) is operated, water can be guided to the first pipe (221). After passing through the first pipe (221), water can be sprayed toward the inside of the drum (30) from the upper side of the diaphragm (22). The water sprayed toward the inside of the drum (30) from the upper side of the diaphragm (22) can improve the washing effect of the laundry contained in the drum (30).

[0131] When the operation of the Euro switching device (220) is stopped, water can be guided to the second pipe (222). After passing through the second pipe (222), water can flow into the tub (20) from the lower side of the tub (20). Water flowing into the lower side of the tub (20) can increase the sloshing of water stored in the tub (20). If the sloshing of water increases, the washing effect of the laundry can be improved.

[0132] Meanwhile, while the garment processing device (1) performs a drying operation, dust and / or lint may float within the tub (20) and drum (30). Dust and / or lint may enter the first pipe (221) and cause the first pipe (221) to become constricted and / or blocked. If the first pipe (221) becomes constricted and / or blocked, the spray of water from the upper side of the diaphragm (22) may be reduced or blocked, and the washing performance may be reduced. Therefore, if the first pipe (221) becomes constricted and / or blocked, it is necessary to optimize the operation of the garment processing device (1) to maintain washing performance.

[0133] FIG. 6 is a control block diagram of a clothing processing device according to one embodiment.

[0134] Referring to FIG. 6, the garment processing device (1) may include various parts and / or devices and may include a control unit (300) electrically connected to the various parts and / or devices. The control unit (300) may include the aforementioned control circuit (16). For example, the control unit (300) may control a drum motor (36), a water supply device (40), a drainage device (70), a drying device (80), a circulation pump (210), and a flow path switching device (220). Additionally, the control unit (300) may control a user interface (15) and a communication interface (150).

[0135] The control unit (300) may include a processor (310) and a memory (320). The memory (320) may include volatile memory (e.g., S-RAM, D-RAM) and non-volatile memory (e.g., ROM, EEPROM). The processor (310) and the memory (320) may be implemented as separate chips or as a single chip. Additionally, a plurality of processors and a plurality of memories may be provided.

[0136] The processor (310) can process various data and various signals using instructions, data, programs and / or software stored in memory (320). The processor (310) may include one core or multiple cores. The processor (310) can generate control signals for controlling components of the clothing processing device (1).

[0137] The processor (310) may be configured to perform various operations of the clothing processing device (1). The processor (310) may perform operations of the clothing processing device (1) according to various embodiments by executing at least one instruction, algorithm, program and / or software stored in memory (320). The processor (310) may control one or any combination of the components of the clothing processing device (1).

[0138] The processor (310) may include various types of circuits. For example, the processor (310) may include one or more of a CPU (Central Processing Unit), GPU (Graphics Processing Unit), APU (Accelerated Processing Unit), MIC (Many Integrated Core), DSP (Digital Signal Processor), NPU (Neural Processing Unit), hardware accelerator, or machine learning accelerator.

[0139] The processor (310) can control various components of the garment processing device (1) to perform washing, rinsing, spin-drying, and / or drying operations. The processor (310) can be electrically connected to various parts and / or devices of the garment processing device (1) and can control various parts and / or devices.

[0140] For example, the processor (310) can control the user interface (15) to output various information regarding the operation of the clothing processing device (1). The user interface (15) can visually and / or audibly output information regarding the operation course, operation time, washing settings, rinsing settings, spin settings, and / or drying settings of the clothing processing device (1). Additionally, the user interface (15) can output information regarding abnormal status of the clothing processing device (1).

[0141] The user interface (15) may provide a user interface for the user and the clothing processing device (1) to interact. The user interface (15) may include at least one input interface (15a) and at least one output interface (15b). The user interface (15) may receive various user inputs and output various information regarding the operation of the clothing processing device (1).

[0142] The input interface (15a) may include various buttons and / or dials. For example, the input interface (15a) may include a power button, a start / stop button, a course selection dial (or course selection button), and a wash setting button, a rinse setting button, a spin setting button and / or a dry setting button.

[0143] The output interface (15b) can visually and / or audibly convey information related to the operation of the clothing processing device (1) to the user. The output interface (15b) can visually and / or audibly convey information related to the operation of the clothing processing device (1) to the user. Information regarding the operation of the clothing processing device (1) can be output as an image, text, an indicator, and / or voice. Additionally, the output interface (15b) can display a graphic user interface (GUI) that enables control of the clothing processing device (1). That is, the display can display UI elements such as icons.

[0144] The output interface (15b) may include at least one of a display and a speaker. The display may also be used as an input device, including a touch screen.

[0145] The processor (310) can control the operation of the clothing processing device (1) based on user input obtained through the user interface (15) or user device. For example, the control unit (300) can turn the clothing processing device (1) on or off based on user input for turning the clothing processing device (1) on or off. The control unit (300) can determine the operation course of the clothing processing device (1) based on user input for setting the operation course of the clothing processing device (1). The operation course of the clothing processing device (1) can be provided in various ways. For example, the operation course of the clothing processing device (1) can be broadly classified into a washing course and a drying course.

[0146] Washing courses may be provided in various ways depending on the type of laundry (e.g., clothing, bedding, underwear, etc.) and material (e.g., cotton, wool, nylon, etc.). For example, washing courses may include at least one of standard wash, heavy wash, delicate clothing wash, bedding wash, baby clothes wash, towel wash, boil wash, and dry cleaning. Each of the multiple washing courses may include different washing settings (e.g., wash temperature, number of rinses, spin intensity, etc.).

[0147] When one of a plurality of washing courses is selected through a user interface (15) or an external user device, the processor (310) can control the garment processing device (1) to perform washing, rinsing, and spin-drying operations corresponding to the selected washing course. Additionally, the washing course may include a rinsing and spin-drying course that does not include a washing operation, a rinsing course, and a spin-drying course. The washing course is not limited to the examples provided. The washing course may also include a drying operation.

[0148] Drying courses may also be provided in various ways depending on the type of object to be dried (e.g., clothing, bedding, underwear, etc.) and material (e.g., cotton, wool, nylon, etc.). For example, a drying course may include at least one of standard drying, heavy drying, delicate clothing drying, bedding drying, baby clothes drying, towel drying, and outdoor clothing drying. Each of the multiple drying courses may include different drying settings (e.g., drying temperature, drying time, etc.). When one of the multiple drying courses is selected via the user interface (15) or an external user device, the processor (310) may control the clothing processing device (1) to perform a drying operation corresponding to the selected drying course. A drying course may be included as a drying operation in a washing course. The drying courses are not limited to those exemplified.

[0149] A wash-dry course may be provided that is set to sequentially perform a wash, rinse, spin, and dry operation.

[0150] The communication interface (150) may include various communication circuits for performing wired communication and / or wireless communication with an external device (e.g., a server, a user device, and / or other home appliance). The communication interface (150) may correspond to the aforementioned communication module. The user device may include various electronic devices such as a smartphone, a notebook, a laptop, a smart watch, a stationary tablet, and a speaker. User input may be obtained through the user interface (15) as well as through the user device.

[0151] The drum motor (36) can rotate the drum (30) under the control of the processor (310). Depending on the operation of the drum motor (36), the drum (30) can rotate clockwise or counterclockwise. The rotation direction of the drum (30) can be periodically switched to the opposite direction. The processor (310) can control the drum motor (36) to adjust the rotation speed of the drum (30).

[0152] The water supply device (40) can selectively supply water to the tub (20) and the nozzle device (96). The water supply device (40) may include a water supply pipe (43, 44) connected to an external water source and a water supply valve (41, 42) that opens or closes the water supply pipe. The water supply device (40) may include a first water supply valve (41) and a second water supply valve (42). As previously described, the first water supply valve (41) may correspond to a hot water valve. The second water supply valve (42) may correspond to a cold water valve. The water supply pipes (43, 44) may include a first water supply pipe (43) corresponding to a hot water pipe and a second water supply pipe (44) corresponding to a cold water pipe.

[0153] The processor (310) can control the opening and closing of the first water supply valve (41) and the second water supply valve (42), respectively. The processor (310) can adjust the opening degree of the first water supply valve (41) and the second water supply valve (42), respectively. The first water supply valve (41) can open or close the first water supply pipe based on an electrical signal transmitted from the processor (310). The second water supply valve (42) can open or close the second water supply pipe based on an electrical signal transmitted from the processor (310).

[0154] The drainage device (70) can discharge water inside the tub (20) to the outside of the housing (10). The processor (310) can control the drainage device (70) so that water inside the tub (20) is discharged to the outside through the drain pipe (73). For example, the processor (310) can control a drainage pump (71) included in the drainage device (70).

[0155] The drying device (80) can remove moisture contained in the air, heat the air, and supply the heated air to the tub (20). The processor (310) can operate the drying device (80) to dry laundry located inside the drum (30). The processor (310) can control the drying device (80) to generate dry and heated air.

[0156] The processor (310) can control the fan device (100), compressor (91), and expansion valve included in the drying device (80). The processor (310) can operate the fan device (100) so that the dried and heated air is supplied into the drum (30). The processor (310) can adjust the rotational speed of the fan device (100). The flow rate of the air supplied into the drum (30) may vary depending on the rotational speed of the fan device (100).

[0157] The compressor (91) compresses low-temperature, low-pressure gaseous refrigerant and discharges it as high-temperature, high-pressure gaseous refrigerant. For example, the compressor (91) can compress the refrigerant through the reciprocating motion of a piston or the rotational motion of a rotor. The discharged gaseous refrigerant can be transferred to a condenser (92). The processor (310) can control the operating frequency and / or rotational speed of the compressor (91). As the operating frequency and / or rotational speed of the compressor (91) increases, the heat released around the condenser (92) may increase.

[0158] The processor (310) can control the opening of the expansion valve. The expansion valve may be provided as an electronic expansion valve in which the opening can be controlled by a capillary tube and an electrical signal to control the pressure of the liquid refrigerant. The low-temperature, low-pressure two-phase refrigerant passing through the expansion valve flows into the evaporator (93).

[0159] The processor (310) can control the circulation pump (210) to circulate water within the tub (20). The circulation pump (210) may include a pump motor (211) for pumping water. The pump motor (211) may be a brushless DC (BLDC) motor. When the pump motor (211) operates, water is discharged from the tub (20), and the water discharged from the tub (20) can be fed back into the tub (20) via the circulation pump (210). Depending on the operation of the circulation pump (210), the water discharged from the tub (20) may be fed into the tub (20) after passing through the lower detergent supply device (60).

[0160] The pump motor (211) may include a motor control circuit. The motor control circuit may be embedded in the pump motor (211). The motor control circuit may correspond to a motor driving integrated circuit. The motor control circuit of the pump motor (211) can control the operation of the pump motor (211) according to a control signal transmitted from the processor (310). When a driving signal is applied to the pump motor (211), the pump motor (211) may rotate at a rotational speed corresponding to the driving signal. The rotational speed of the pump motor (211) may be expressed in revolutions per minute (RPM). The driving signal may correspond to a driving voltage, a driving current, and / or a driving power.

[0161] When the pump motor (211) is in operation, the pump motor (211) can transmit a feedback voltage value to the processor (310). The feedback voltage value output by the pump motor (211) may vary due to various causes. For example, the feedback voltage value of the pump motor (211) may vary depending on the condition of the first pipe (221) (i.e., the circulation path). If the condition of the first pipe (221) is abnormal, the feedback voltage value of the pump motor (211) may decrease. In other words, if stenosis and / or blockage of the first pipe (221) occurs, the feedback voltage value of the pump motor (211) may become smaller than the reference voltage value. The reference voltage value may be predetermined and may be determined in various ways depending on the design.

[0162] The processor (310) can determine whether the first pipe (221) is narrowed and / or blocked based on the feedback voltage value of the pump motor (211). For example, the processor (310) can identify the feedback voltage value as abnormal based on the feedback voltage value of the pump motor (211) becoming smaller than the reference voltage value. As the processor (310) identifies the feedback voltage value as abnormal, it can determine that narrowing and / or blockage of the first pipe (221) has occurred.

[0163] Whether the first pipe (221) is constricted and / or blocked may be determined by the feedback current value of the pump motor (211). The processor (310) may identify the feedback current value as abnormal if the feedback current value of the pump motor (211) is smaller than the reference current value, and may determine that constriction and / or blockage of the first pipe (221) has occurred.

[0164] The flow switching device (220) can guide water discharged from the circulation pump (210) to the upper side of the diaphragm (22) or to the lower side of the tub (20). The flow switching device (220) can guide water discharged from the tub (20) through the circulation pump (210) to a first pipe (221) corresponding to the circulation path or a second pipe (222) corresponding to the bubble path. The first pipe (221) can connect the upper side of the diaphragm (22) to the flow switching device (220). The second pipe (222) can connect the lower side of the tub (20) to the flow switching device (220).

[0165] The processor (310) can control the operation of the flow switching device (220). The flow switching device (220) can be turned on or off according to the control of the processor (310). When the flow switching device (220) is operated, the first pipe (221) can be opened and the second pipe (222) can be closed. When the flow switching device (220) is operated, water can be guided to the first pipe (221). When the operation of the flow switching device (220) is stopped, water can be guided to the second pipe (222).

[0166] In other words, when the flow switching device (220) is turned on, water moves to the upper side of the diaphragm (22) through the first pipe (221), and water may not flow through the second pipe (222). When the flow switching device (220) is turned off, the flow of water through the first pipe (221) is blocked, and water may flow to the tub (20) through the second pipe (222).

[0167] The flow switching device (220) can be provided with various types of valves. For example, the flow switching device (220) may be a thermal actuator valve. The flow switching device (220) may consume power when in operation and may not consume power when operation is stopped.

[0168] The processor (310) can control the pump motor (211) and the flow path switching device (220) of the circulation pump (210) so that water flows into the first pipe (221) or the second pipe (222) according to the execution of the washing course.

[0169] The processor (310) can identify whether the feedback voltage value obtained from the pump motor (211) is normal. The processor (310) can obtain the feedback voltage value after a waiting time has elapsed from the start of operation of the pump motor (211). The waiting time can be predetermined and can be determined in various ways depending on the design.

[0170] The processor (310) can control the flow switching device (220) to block the flow of water to the first pipe (221) and guide the water to the second pipe (222) based on the fact that the feedback voltage value of the pump motor (211) is identified as abnormal. For example, the processor (310) can identify the feedback voltage value as abnormal if the feedback voltage value is smaller than the reference voltage value and stop the operation of the flow switching device (220).

[0171] The processor (310) can control the flow switching device (220) using flow setting information stored in the memory (320). For example, the flow setting information may include section information that divides at least one of the washing operation and the rinsing operation into at least one first section using the first pipe (221) and at least one second section using the second pipe (222). Additionally, the flow setting information may include control information for turning on the flow switching device (220) in the first section to use the first pipe (221) and turning off the flow switching device (220) in the second section to use the second pipe (222). Flow setting information matching each of the various washing courses may be stored in the memory (320). The washing operation and / or rinsing operation included in the various washing courses may be determined to have various sections.

[0172] Based on the fact that the feedback voltage value of the pump motor (211) is identified as abnormal, the processor (310) may change the flow path setting information so that the second pipe (222) is used instead of the first pipe (221) in at least one first section included in the washing operation and / or rinsing operation. When the washing operation and / or rinsing operation is performed again thereafter, the processor (310) may stop the operation of the flow path switching device (220) so that the second pipe (222) is used in all sections of the washing operation and / or rinsing operation according to the changed flow path setting information. Thus, the flow of water to the first pipe (221) where stenosis and / or blockage has occurred may be blocked.

[0173] Additionally, the processor (310) can stop the operation of the flow switching device (220) and control the drum motor (36) to increase the rotational speed of the drum (30) based on the identification that the feedback voltage value of the pump motor (211) is abnormal. When using the bubble flow path (second pipe (222)) in the washing and rinsing operations, the rotational speed of the drum (30) may be faster than the rotational speed of the drum (30) when using the circulation flow path (first pipe (221)). Since a drop in water occurs when using the circulation flow path, the cleaning power of the water circulating through the circulation flow path may be better than the cleaning power of the water circulating through the bubble flow path. Since washing performance may decrease when the bubble flow path is used instead of the circulation flow path, the garment processing device (1) can compensate for washing performance by increasing the rotational speed of the drum (30) when the bubble flow path is used instead of the circulation flow path.

[0174] The processor (310) can perform a cleaning process of the first pipe (221) after the end of the washing course. For example, the processor (310) can start a cleaning process of the first pipe (221) after the end of the washing course, which includes the washing operation, rinsing operation, and spin-drying operation currently being performed.

[0175] The processor (310) can control the water supply device (40) to supply hot water to the tub (20) to perform a cleaning process of the first pipe (221). When the supply of hot water is completed, the processor (310) can operate the pump motor (211) and the flow path switching device (220). The processor (310) can set the rotational speed of the pump motor (211) to the maximum during the cleaning process. By supplying hot water to the first pipe (221), various foreign substances (e.g., grease, detergent residue, etc.) within the first pipe (221) can be removed.

[0176] The processor (310) may operate the drainage device (70) to discharge water remaining in the tub (20) to the outside before supplying hot water to the tub (20). Additionally, the processor (310) may operate the drying device (80) for a heating time to increase the temperature inside the tub (20) before supplying hot water to the tub (20). Increasing the temperature inside the tub (20) can help remove various foreign substances (e.g., grease, detergent residue, etc.) inside the first pipe (221).

[0177] The processor (310) can monitor the feedback voltage value of the pump motor (211) while operating the pump motor (211) and the flow path switching device (220). The processor (310) can determine whether to terminate the cleaning process based on whether the feedback voltage value is identified as normal. For example, the processor (310) can terminate the cleaning process in response to the feedback voltage value of the pump motor (211) being identified as normal within the cleaning time (e.g., 10 minutes). The cleaning time can be predetermined and can be determined in various ways depending on the design.

[0178] The processor (310) may terminate the cleaning process by providing notification information regarding the blockage of the first pipe (221) (circulation path) through the user interface (15) in response to the feedback voltage value of the pump motor (211) being identified as abnormal during the cleaning time (e.g., 10 minutes). The notification information regarding the blockage of the first pipe (221) may be provided through at least one of the output interface (15b) of the user interface (15) and the user device.

[0179] Notification information regarding blockage of the first pipe (221) may include information for notifying of stenosis and / or blockage of the first pipe (221), as well as cleaning guidance information for guiding cleaning of the first pipe (221). The clothing processing device (1) can help the user manually clean the first pipe (221) by providing cleaning guidance information for the first pipe (221). Notification information regarding blockage of the first pipe (221) may be provided in various forms. For example, notification information regarding blockage of the first pipe (221) may be provided using at least one of text, image, animation, voice, sound effect, and vibration.

[0180] FIG. 7 is a graph showing the feedback voltage of the pump motor and the rotational speed of the pump motor when the condition of the circulation path included in the clothing processing device according to one embodiment is normal.

[0181] Referring to the graph (700) of FIG. 7, the pump motor (211) of the circulation pump (210) can operate according to a driving signal. The pump motor (211) is exemplified as operating from time t1 to t2, stopping from time t2 to t3, and operating from time t3 to t4. When a driving signal is applied to the pump motor (211) at time t1 and t3, the rotational speed (RPM) of the pump motor (211) can increase. The rotational speed of the pump motor (211) can be maintained at a reference rotational speed (R_ref) until time t2 and t4, when the application of the driving signal is stopped.

[0182] While the pump motor (211) is operating, the pump motor (211) can output a feedback voltage value. A feedback voltage value may be detected to be relatively large for a short period of time from time t1 and time t3, respectively, when a driving signal is applied to the pump motor (211). After a short period of time has passed since the driving signal is applied, a feedback voltage value within an error range from the reference voltage value may be detected.

[0183] When the condition of the circulation path (first pipe (221)) is normal (i.e., when no stenosis and / or blockage of the first pipe (221) occurs), the pump motor (211) can output a feedback voltage value that follows a reference voltage value (V_ref). For example, when the condition of the circulation path is normal, the pump motor (211) can output a feedback voltage value that is greater than or equal to the reference voltage value (V_ref). The average or minimum value of the feedback voltage output by the pump motor (211) may appear to be greater than or equal to the reference voltage value (V_ref). Additionally, the difference between the maximum value of the feedback voltage and the reference voltage value may appear relatively small.

[0184] FIG. 8 is a graph showing the feedback voltage of the pump motor and the rotational speed of the pump motor when the condition of the circulation path included in the clothing processing device according to one embodiment is abnormal.

[0185] Referring to the graph (800) of FIG. 8, the pump motor (211) is exemplified as operating from time ta to time tb according to the driving signal, stopping from time tb to time tc, and operating from time tc to time td. When a driving signal is applied to the pump motor (211) at times ta and tc, the rotational speed (RPM) of the pump motor (211) may increase. The rotational speed of the pump motor (211) may be maintained at the reference rotational speed (R_ref) until times tb and td, when the application of the driving signal is stopped. Since the rotational speed of the pump motor (211) is determined by the driving signal, the rotational speed of the pump motor (211) may appear at the reference rotational speed (R_ref) even if the condition of the circulation path is abnormal.

[0186] The feedback voltage value output by the pump motor (211) may vary due to various causes. For example, the feedback voltage value of the pump motor (211) may vary depending on the condition of the first pipe (221) (i.e., the circulation path).

[0187] When the condition of the circulation path (first pipe (221)) is abnormal (i.e., when stenosis and / or blockage of the first pipe (221) occurs), the feedback voltage value (V_stuck) output by the pump motor (211) can generally be detected as being smaller than the reference voltage value (V_ref). Therefore, the clothing processing device (1) can determine that the condition of the circulation path is abnormal if the feedback voltage value of the pump motor (211) is smaller than the reference voltage value (V_ref) while the circulation pump (210) and the path switching device (220) are operating.

[0188] The feedback voltage value may be detected to be relatively large for a short period of time from time ta and time tc, respectively, when a driving signal is applied to the pump motor (211). For example, from time ta to time tw, the feedback voltage value of the pump motor (211) may be detected to be larger than the reference voltage value (V_ref). When the condition of the circulation path (first pipe (221)) is abnormal, the difference between the maximum value of the feedback voltage and the reference voltage value (V_ref) may appear relatively large. Therefore, if the feedback voltage value is detected after a waiting time (e.g., the time interval from time ta to time tw) has elapsed from the start of operation of the pump motor (211), the condition of the circulation path can be determined more accurately.

[0189] FIG. 9 is a table showing flow setting information for controlling a flow switching device in a washing operation and / or rinsing operation.

[0190] Referring to the table (900) in FIG. 9, during a washing operation and / or rinsing operation, the processor (310) of the garment processing device (1) can control the flow path switching device (220) so that the circulation flow path (first pipe (221)) and the bubble flow path (second pipe (222)) are selectively used by using the flow path setting information stored in the memory (320). Flow path setting information matching each of the various washing courses can be stored in the memory (320). The washing operation and / or rinsing operation included in the various washing courses can be determined to have various sections.

[0191] The processor (310) can divide the washing and / or rinsing operations into at least one first section using a circulation path and at least one second section using a bubble path. The processor (310) can turn on the path switching device (220) so that water flows into the circulation path in the first section, and turn off the path switching device (220) so that water flows into the bubble path in the second section.

[0192] When the condition of the circulation path is normal, the processor (310) can control the path switching device (220) so that the circulation path and the bubble path are used alternately during the washing and / or rinsing operation. In other words, a first section using the circulation path and a second section using the bubble path can be alternately arranged in the timeline of the washing and / or rinsing operation. For example, as shown in FIG. 9, the first washing / rinsing and the third washing / rinsing may correspond to the first section. The second washing / rinsing and the fourth washing / rinsing may correspond to the second section.

[0193] However, when the condition of the circulation path is abnormal, the processor (310) may turn off the path switching device (220) so that the bubble path is used instead of the circulation path during the washing and / or rinsing operations, and change the path setting information. For example, as shown in FIG. 9, the path switching device (220) may be turned off so that the bubble path is used instead of the circulation path during the first washing / rinsing and the third washing / rinsing.

[0194] When the washing and / or rinsing operations are performed again in the future, the processor (310) may stop the operation of the flow switching device (220) so that bubble oil is used in all sections of the washing and / or rinsing operations according to the changed flow setting information. Thus, the flow of water can be blocked in the circulation flow path where narrowing and / or blockage has occurred.

[0195] FIG. 10 is a flowchart illustrating an example of an operation course executed by a clothing processing device according to one embodiment.

[0196] Referring to FIG. 10, the clothing processing device (1) can perform various operations as various operation courses are selected. Depending on the operation course, the clothing processing device (1) may selectively perform at least one of a washing operation (1001), a rinsing operation (1002), a spin-drying operation (1003), and a drying operation (1004).

[0197] For example, the clothing processing device (1) can perform a washing operation (1001), a rinsing operation (1002), and a spin-drying operation (1003) in response to the selection of a washing course. The clothing processing device (1) can perform a washing operation (1001), a rinsing operation (1002), a spin-drying operation (1003), and a drying operation (1004) in response to the selection of a washing-drying course. The clothing processing device (1) can perform a rinsing operation (1002) and a spin-drying operation (1003) in response to the selection of a washing-drying course. The clothing processing device (1) can perform a spin-drying operation (1003) in response to the selection of a spin-drying course. The clothing processing device (1) may perform only a drying operation (1004) in response to the selection of a drying course. The operation of the clothing processing device (1) is described below with the case where the washing-drying course is selected as an example.

[0198] To perform a washing operation (1001), the processor (310) of the garment processing device (1) can control the detergent supply device (50, 60) to supply laundry detergent to the tub (20). The processor (310) can control the water supply device (40) to supply water to the tub (20). The processor (310) can control the drum motor (36) to rotate the drum (30). The washing operation (1001) can be performed one or more times. While the washing operation (1001) is being performed, the processor (310) can control the circulation pump (210) and the flow path switching device (220) so that the water in the tub (20) circulates through the circulation path (first pipe (221)) and / or the bubble path (second pipe (222)).

[0199] When the washing operation (1001) is completed, the garment processing device (1) can perform a rinsing operation (1002). The rinsing operation (1002) can be performed one or more times. The processor (310) can control the drum motor (36) to rotate the drum (30). To perform the rinsing operation (1002), the processor (310) can control the water supply device (40) to supply water to the tub (20). The processor (310) can also control the detergent supply device (50, 60) to supply a rinsing aid to the tub (20). While the rinsing operation (1002) is being performed, the processor (310) can control the circulation pump (210) and the flow switching device (220) so that the water in the tub (20) circulates through the circulation path (first pipe (221)) and / or the bubble path (second pipe (222)).

[0200] When the rinsing operation (1002) is completed, the garment processing device (1) can perform a spin-drying operation (1003). The processor (310) can control the drainage device (70) so that detergent and / or water are discharged from the tub (20). The processor (310) can rotate the drum (30) at a relatively high speed. When the drum (30) rotates rapidly, the detergent and / or water absorbed by the laundry can be removed from the laundry by centrifugal force.

[0201] When the dehydration operation (1003) is completed, the garment processing device (1) can perform a drying operation (1004). To perform the drying operation (1004), the processor (310) can control a drying device (80) that supplies hot air into the drum (30). Additionally, the processor (310) can rotate the drum (30) at a relatively low speed.

[0202] When the drying operation (1004) is completed, the processor (310) can terminate the washing-drying course. The processor (310) can stop the operation of the clothing processing device (1) and turn off the power.

[0203] FIG. 11 is a flowchart illustrating a control method of a clothing processing device according to one embodiment.

[0204] Referring to FIG. 11, the processor (310) of the garment processing device (1) can control the pump motor (211) of the circulation pump (210) and the flow path switching device (220) so that water flows into the first pipe (221) or the second pipe (222) according to the execution of the washing course (1101). The washing course can be selected and executed based on user input obtained through the user interface (15) or user device. The washing course may include various operations. For example, the washing course may include washing operations, rinsing operations, and spin-drying operations. The washing course may further include drying operations.

[0205] The processor (310) can obtain the feedback voltage value of the pump motor (211) while the pump motor (211) and the flow path switching device (220) are operating (1102). The feedback voltage value output by the pump motor (211) may vary due to various causes. For example, the feedback voltage value of the pump motor (211) may vary depending on the condition of the first pipe (221) (i.e., the circulation path). If the condition of the first pipe (221) is abnormal, the feedback voltage value of the pump motor (211) may decrease.

[0206] The processor (310) can identify whether the feedback voltage value of the pump motor (211) is normal (1103). If the feedback voltage value of the pump motor (211) is abnormal, the processor (310) can control the flow switching device (220) to block the flow of water to the first pipe (221) (1104). The processor (310) can stop the operation of the flow switching device (220) to block the flow of water to the first pipe (221) and guide the water to the second pipe (222). If the feedback voltage value of the pump motor (211) is normal, the processor (310) may not control the flow switching device (220) to block the flow of water to the first pipe (221).

[0207] Additionally, the processor (310) can stop the operation of the flow switching device (220) and control the drum motor (36) to increase the rotational speed of the drum (30) based on the fact that the feedback voltage value of the pump motor (211) is identified as abnormal.

[0208] The processor (310) can perform a cleaning process of the first pipe (221) after the end of the washing course (1105). For example, the processor (310) can start a cleaning process of the first pipe (221) after the end of the washing course, which includes the washing operation, rinsing operation, and spin-drying operation currently being performed.

[0209] FIG. 12 is a flowchart that explains in more detail the control method of the clothing processing device described in FIG. 11.

[0210] Referring to FIG. 12, the 1201 operation can correspond to the 1101 operation of FIG. 11. The processor (310) of the clothing processing device (1) can obtain the feedback voltage value of the pump motor (211) after a waiting time has elapsed from the start of operation of the pump motor (211) (1202, 1203). The feedback voltage value may be detected to be relatively large for a short period of time from the start of operation of the pump motor (211). Therefore, if the feedback voltage value is detected after a waiting time has elapsed from the start of operation of the pump motor (211), the state of the circulation path can be determined more accurately.

[0211] The processor (310) can compare the feedback voltage value of the pump motor (211) with a reference voltage value (1204). If a narrowing and / or blockage occurs in the first pipe (221), the feedback voltage value of the pump motor (211) may be lower than the reference voltage value. If the feedback voltage value of the pump motor (211) is lower than the reference voltage value, the processor (310) may identify the feedback voltage value as abnormal and determine that a narrowing and / or blockage has occurred in the first pipe (221).

[0212] Whether the first pipe (221) is constricted and / or blocked may be determined by the feedback current value of the pump motor (211). The processor (310) may identify the feedback current value as abnormal if the feedback current value of the pump motor (211) is smaller than the reference current value, and may determine that constriction and / or blockage of the first pipe (221) has occurred.

[0213] The processor (310) can control the flow switching device (220) to block the flow of water into the first pipe (221) based on the feedback voltage value of the pump motor (211) being smaller than the reference voltage value (1205). In other words, the processor (310) can stop the operation of the flow switching device (220) when the feedback voltage value is smaller than the reference voltage value. If the feedback voltage value of the pump motor (211) is greater than or equal to the reference voltage value, the processor (310) may not control the flow switching device (220) to block the flow of water into the first pipe (221).

[0214] The processor (310) can change the flow path setting information stored in the memory (320) based on the fact that the feedback voltage value of the pump motor (211) is smaller than the reference voltage value (1206). For example, the flow path setting information may include section information that divides at least one of the washing operation and the rinsing operation into at least one first section using the first pipe (221) and at least one second section using the second pipe (222). Additionally, the flow path setting information may include control information for turning on the flow path switching device (220) in the first section to use the first pipe (221) and turning off the flow path switching device (220) in the second section to use the second pipe (222). The processor (310) can change the flow path setting information so that the second pipe (222) is used instead of the first pipe (221) in at least one first section included in the washing operation and / or rinsing operation based on the fact that the feedback voltage value of the pump motor (211) is identified as abnormal.

[0215] When the washing and / or rinsing operation is performed again in the future, the processor (310) may stop the operation of the flow switching device (220) so that the second pipe (222) is used in all sections of the washing and / or rinsing operation according to the changed flow setting information. Thus, the flow of water to the first pipe (221) where stenosis and / or blockage has occurred may be blocked.

[0216] The processor (310) can perform a cleaning process of the first pipe (221) after the end of the washing course (1207).

[0217] Figure 13 is a flowchart that explains the cleaning process described in Figure 11 in more detail.

[0218] Referring to FIG. 13, when the cleaning process of the first pipe (221) begins, the processor (310) of the garment processing device (1) may operate the drying device (80) for a heating time to increase the temperature inside the tub (20) (1301). Increasing the temperature inside the tub (20) may help remove various foreign substances (e.g., grease, detergent residue, etc.) inside the first pipe (221). The operation of the drying device (80) may be omitted during the cleaning process.

[0219] The processor (310) can control the water supply device (40) to supply hot water to the tub (20) (1302). To prevent failure of the drying device (80), the supply of hot water may be performed after the operation of the drying device (80) has stopped. Once the supply of hot water is completed, the processor (310) can operate the pump motor (211) of the circulation pump (210) and the flow path switching device (220) (1303). The processor (310) can set the rotational speed of the pump motor (211) to the maximum during the cleaning process. By supplying hot water to the first pipe (221), various foreign substances (e.g., grease, detergent residue, etc.) within the first pipe (221) can be removed.

[0220] The processor (310) may also operate the drainage device (70) to discharge water remaining in the tub (20) to the outside before supplying hot water to the tub (20).

[0221] The processor (310) can obtain a feedback voltage value of the pump motor (211) while operating the pump motor (211) and the flow switching device (220) (1304). The processor (310) can identify whether the feedback voltage value of the pump motor (211) is normal (1305).

[0222] Additionally, the processor (310) can identify whether a cleaning time (e.g., 10 minutes) has elapsed since the start of operation of the pump motor (211) and the flow switching device (220) of the first pipe (221) (1306). The processor (310) can terminate the cleaning process in response to the feedback voltage value of the pump motor (211) being identified as normal within the cleaning time (e.g., 1305).

[0223] The processor (310) may, in response to the feedback voltage value of the pump motor (211) being identified as abnormal during the cleaning time (e.g., 10 minutes) (No in 1305 and Yes in 1306), provide notification information regarding the blockage of the first pipe (221) (circulation path) through the user interface (15) and terminate the cleaning process (1307).

[0224] Notification information regarding blockage of the first pipe (221) may be provided through at least one of the output interface (15b) of the user interface (15) and the user device. The notification information regarding blockage of the first pipe (221) may include information for notifying of stenosis and / or blockage of the first pipe (221), as well as cleaning guidance information for guiding cleaning of the first pipe (221).

[0225] A garment processing device according to one embodiment may include: a tub; a diaphragm provided in an opening of the tub; a circulation pump including a pump motor that discharges water stored in the tub and circulates the discharged water to the tub; a first pipe connected to the upper side of the diaphragm; a second pipe connected to the lower side of the tub; a flow path switching device that guides the discharged water to the first pipe or the second pipe; and at least one processor. The at least one processor may control the pump motor according to the execution of a washing course, identify a feedback voltage value obtained from the pump motor, and control the flow path switching device so that the discharged water is guided to the first pipe or the second pipe based on the identified feedback voltage value.

[0226] The above-mentioned at least one processor can identify the feedback voltage value as abnormal if the feedback voltage value is smaller than the reference voltage value. Based on the identification that the feedback voltage value is abnormal, the processor can control the flow path switching device to block the water discharged from the first pipe and guide the discharged water to the second pipe.

[0227] The above at least one processor can obtain the feedback voltage value after a waiting time has elapsed from the start of operation of the pump motor.

[0228] The above clothing processing device may further include a memory for storing flow path setting information. The flow path setting information includes information for dividing at least one of a washing operation and a rinsing operation into at least one first section in which the flow path switching device guides the discharged water to the first pipe and at least one second section in which the flow path switching device guides the discharged water to the second pipe, and the at least one processor may change the flow path setting information so that the discharged water is guided to the second pipe instead of the first pipe in the at least one first section based on the feedback voltage value being identified as abnormal.

[0229] The above clothing processing device may further include a drum rotatable within the tub; and a drum motor for rotating the drum. The at least one processor may control the flow path switching device to block the water discharged from the first pipe and guide the discharged water to the second pipe based on the identification that the feedback voltage value is abnormal, and control the drum motor to increase the rotational speed of the drum.

[0230] The above at least one processor can perform a cleaning process of the first pipe based on the termination of the washing course when the feedback voltage value is identified as abnormal, and determine the termination of the cleaning process based on the feedback voltage value being identified as normal during the performance of the cleaning process.

[0231] The above clothing processing device may further include a water supply device capable of being connected to an external hot water source. Based on the fact that the water supply device is connected to the external hot water source, the at least one processor may control the water supply device to supply hot water from the external hot water source to the tub in order to clean the first pipe.

[0232] The above at least one processor can set the rotational speed of the pump motor to the maximum based on the performance of the cleaning process.

[0233] The above clothing processing device may further include a drying device that supplies hot air to the tub. The at least one processor may operate the drying device to supply hot air to the tub in order to increase the temperature inside the tub before supplying hot water to the tub.

[0234] The above clothing processing device may further include a user interface. In response to the feedback voltage value being identified as abnormal during the performance of the cleaning process, the at least one processor may provide notification information regarding the blockage of the first pipe through the user interface and terminate the cleaning process.

[0235] A method for controlling a garment processing device comprising: a tub; a diaphragm provided in an opening of the tub; a circulation pump including a pump motor that discharges water from the tub and circulates the discharged water back to the tub; a first pipe connected to the upper side of the diaphragm; a second pipe connected to the lower side of the tub; and a flow path switching device that guides the water to the first pipe or the second pipe, the method may include: a step of controlling the pump motor according to the execution of a washing course; a step of identifying a feedback voltage value obtained from the pump motor; and a step of controlling the flow path switching device so that the discharged water is guided to the first pipe or the second pipe based on the identified feedback voltage value.

[0236] The step of identifying the feedback voltage value includes the step of identifying the feedback voltage value as abnormal when the feedback voltage value is smaller than the reference voltage value; and the step of controlling the flow switching device may include the step of controlling the flow switching device to block the water discharged from the first pipe and guide the discharged water to the second pipe based on the fact that the feedback voltage value is identified as abnormal.

[0237] Identifying the feedback voltage value may include obtaining the feedback voltage value after a waiting time has elapsed from the start of operation of the pump motor.

[0238] The step of controlling the above-mentioned flow switching device may be performed based on flow setting information stored in memory. The above-mentioned flow setting information may include information for dividing at least one of a washing operation and a rinsing operation into at least one first section in which the flow switching device guides the discharged water to the first pipe and at least one second section in which the flow switching device guides the discharged water to the second pipe. The control method may further include the step of changing the flow setting information so that the discharged water is guided to the second pipe instead of the first pipe in the at least one first section based on the feedback voltage value being identified as abnormal.

[0239] The above clothing processing device may further include a drum rotatable within the tub; and a drum motor for rotating the drum. The control method may further include, based on the feedback voltage value being identified as abnormal, controlling the flow path switching device to block the water discharged from the first pipe and guide the discharged water to the second pipe; and controlling the drum motor to increase the rotational speed of the drum.

[0240] The above control method may further include: performing a cleaning process of the first pipe based on the termination of the washing course when the feedback voltage value is identified as abnormal; and terminating the cleaning process based on the feedback voltage value being identified as normal during the performance of the cleaning process.

[0241] The above clothing processing device may further include a water supply device capable of being connected to an external hot water source. Performing the cleaning process of the first pipe may include controlling the water supply device to supply hot water from the external hot water source to the tub based on the fact that the water supply device is connected to the external hot water source.

[0242] Performing the cleaning process of the first pipe above may include setting the rotational speed of the pump motor to the maximum.

[0243] The above clothing processing device may further include a drying device that supplies hot air to the tub. Performing the cleaning process of the first pipe may further include operating the drying device to increase the temperature inside the tub before supplying hot water to the tub.

[0244] Performing the cleaning process of the first pipe may further include, in response to the feedback voltage value being identified as abnormal during the cleaning process, providing notification information regarding the blockage of the first pipe through a user interface and terminating the cleaning process.

[0245] The disclosed garment processing device and its control method can optimize the operation of the garment processing device to maintain washing performance when narrowing and / or blockage of the flow path for circulating water stored in the tub occurs.

[0246] The disclosed garment processing device and its control method can reduce unnecessary power consumption and reduce the occurrence of component failures by reducing and / or stopping the operation of components related to a passage where stenosis and / or blockage have occurred.

[0247] The disclosed clothing processing device and its control method can minimize the reduction in washing performance by automatically performing a cleaning process to resolve the narrowing and / or blockage of the water flow path for circulating water stored in the tub.

[0248] The disclosed clothing processing device and its control method can improve user convenience and product reliability by providing the user with information regarding the narrowing and / or blockage of the flow path for circulating water stored in a tub.

[0249] Meanwhile, the disclosed embodiments may be implemented in the form of a storage medium that stores instructions executable by a computer. The instructions may be stored in the form of program code, and when executed by a processor, they may generate a program module to perform the operation of the disclosed embodiments.

[0250] A device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory storage medium' simply means that it is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily. For example, a 'non-transitory storage medium' may include a buffer in which data is stored temporarily.

[0251] Methods according to the various embodiments disclosed in this document may be provided as part of a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or distributed online (e.g., download or upload) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product (e.g., downloadable app) may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0252] As described above, the disclosed embodiments have been explained with reference to the attached drawings. Those skilled in the art will understand that the present invention may be practiced in forms different from the disclosed embodiments without changing the technical spirit or essential features of the invention. The disclosed embodiments are illustrative and should not be interpreted restrictively.

Claims

1. Tub; A diaphragm provided in the opening of the above tub; A circulation pump including a pump motor, which discharges water stored in the tub and circulates the discharged water to the tub; A first pipe connected to the upper side of the above diaphragm; A second pipe connected to the lower side of the above tub; and The above pump motor is controlled according to the execution of the washing course, and Identifying the feedback voltage value obtained from the above pump motor, and A clothing processing device comprising at least one processor that controls a flow path switching device to guide the discharged water to the first pipe or the second pipe based on the identified feedback voltage value.

2. In Paragraph 1, The above at least one processor Identifying the feedback voltage value as abnormal based on the fact that the feedback voltage value is smaller than the reference voltage value, and A clothing processing device that controls the flow path switching device to block the water discharged from the first pipe and guide the discharged water to the second pipe based on the above feedback voltage value being identified as abnormal.

3. In Paragraph 1, The above at least one processor A clothing processing device that obtains the feedback voltage value based on the elapsed waiting time from the start of operation of the pump motor.

4. In Paragraph 1, It further includes memory for storing Euro configuration information, The above-mentioned flow path setting information includes information for dividing at least one of the washing operation and the rinsing operation into at least one first section in which the flow path switching device guides the discharged water to the first pipe and at least one second section in which the flow path switching device guides the discharged water to the second pipe. The above-mentioned at least one processor is, A clothing processing device that changes the flow path setting information so that the discharged water is guided to the second pipe instead of the first pipe in the at least one first section based on the above feedback voltage value being identified as abnormal.

5. In Paragraph 1, A drum rotatable within the above tub; and It further includes a drum motor that rotates the above drum, The above at least one processor Based on the above feedback voltage value being identified as abnormal, the flow path switching device is controlled to block the water discharged from the first pipe and guide the discharged water to the second pipe, and A garment processing device that controls the drum motor to increase the rotational speed of the drum.

6. In Paragraph 1, The above-mentioned at least one processor is, Based on the fact that the above feedback voltage value is identified as abnormal and the above washing course is terminated, a cleaning process of the above first pipe is performed, and A clothing processing device that determines the termination of the cleaning process based on the fact that the feedback voltage value is identified as normal during the performance of the cleaning process.

7. In Paragraph 6, It further includes a water supply device capable of being connected to an external hot water source, The above at least one processor Based on the fact that the above water supply device is connected to the above external hot water source, A clothing processing device that controls the water supply device to supply hot water from the external hot water source to the tub in order to clean the first pipe.

8. In Paragraph 6, The above at least one processor A clothing processing device that sets the rotational speed of the pump motor to the maximum based on the performance of the above cleaning process.

9. In Paragraph 6, A drying device that supplies hot air to the above tub; further comprising The above at least one processor A clothing processing device that operates the drying device to supply hot air to the tub to increase the temperature inside the tub before supplying hot water to the tub.

10. In Paragraph 6, Including a user interface; further The above processor A clothing processing device that, in response to the feedback voltage value being identified as abnormal during the cleaning process, provides notification information regarding the blockage of the first pipe through the user interface and terminates the cleaning process.

11. A method for controlling a garment processing device comprising: a tub; a diaphragm provided in an opening of the tub; a circulation pump including a pump motor for discharging water from the tub and circulating the discharged water back to the tub; a first pipe connected to the upper side of the diaphragm; a second pipe connected to the lower side of the tub; and a flow path switching device for guiding the water to the first pipe or the second pipe. A step of controlling the pump motor according to the execution of the washing course; A step of identifying a feedback voltage value obtained from the above pump motor; and A method for controlling a clothing processing device, comprising the step of controlling the flow path switching device so that the discharged water is guided to the first pipe or the second pipe based on the identified feedback voltage value.

12. In Paragraph 11, The step of identifying the above feedback voltage value is The method includes the step of identifying the feedback voltage value as abnormal based on the fact that the feedback voltage value is smaller than the reference voltage value; The step of controlling the above-mentioned Euro switching device A method for controlling a clothing processing device, comprising the step of controlling the flow path switching device to block the water discharged from the first pipe and guide the discharged water to the second pipe based on the fact that the feedback voltage value is identified as abnormal.

13. In Paragraph 11, A step of performing a cleaning process of the first pipe based on the fact that the feedback voltage value is identified as abnormal and the washing course is terminated; and A control method for a clothing processing device further comprising the step of determining the termination of the cleaning process based on the fact that the feedback voltage value is identified as normal during the performance of the cleaning process.

14. In Paragraph 11, The step of controlling the above-mentioned Euro switching device is performed based on Euro setting information stored in memory, and The above-mentioned flow path setting information includes information for dividing at least one of the washing operation and the rinsing operation into at least one first section in which the flow path switching device guides the discharged water to the first pipe and at least one second section in which the flow path switching device guides the discharged water to the second pipe. A control method for a clothing processing device further comprising the step of changing the flow path setting information so that the discharged water is guided to the second pipe instead of the first pipe in the at least one first section based on the above feedback voltage value being identified as abnormal.

15. In Paragraph 11, The above clothing processing device is A drum rotatable within the above tub; and It further includes a drum motor that rotates the above drum, The above control method is, Based on the above feedback voltage value being identified as abnormal, a step of controlling the flow path switching device to block the water discharged from the first pipe and guide the discharged water to the second pipe; and A method for controlling a garment processing device, further comprising the step of controlling the drum motor to increase the rotational speed of the drum.

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