Filter assembly, garment processing equipment, control method and storage medium thereof

Abstract

This application discloses a filter assembly, a garment processing device, a control method thereof, and a storage medium. The filter assembly includes a housing, a filter, and a one-way valve. The housing includes a first chamber, a second chamber, and a wall separating the first and second chambers. The filter is disposed within the housing, and the one-way valve is disposed on the wall. When the fluid pressure in the first chamber exceeds a certain limit, the valve allows unidirectional flow in the direction from the first chamber to the second chamber, thereby enabling the fluid to be filtered within the housing to bypass the filter. This effectively ensures the filtration efficiency of the filter assembly.

Description

Technical Field

[0001] This application relates to the field of clothing processing technology, specifically to a filter assembly, clothing processing equipment, control method thereof, and storage medium. Background Technology

[0002] During the washing process, if lint or dirt adheres to the surface of clothes, it is often difficult to remove completely, requiring repeated washing. Furthermore, fine lint easily accumulates inside the washing machine, and its buildup can lead to odors and bacterial growth, thus affecting the washing effect. In addition, directly discharging washing wastewater containing large amounts of lint, impurities, or microfibers can have adverse environmental impacts.

[0003] In related technologies, a filter device can be installed on clothing processing equipment to filter the washing water. However, this filter device often needs to be cleaned manually, and if it is not cleaned in time, it will affect the filtration efficiency of the washing water. Summary of the Invention

[0004] In view of this, embodiments of this application provide a filter assembly, a garment processing device, a control method thereof, and a storage medium, which are designed to effectively meet the filtration efficiency requirements of the filter assembly.

[0005] The technical solution of this application embodiment is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a filter component, including:

[0007] A housing, the housing comprising: a first chamber, a second chamber, and a wall for separating the first chamber and the second chamber;

[0008] A filter is disposed within the housing;

[0009] A one-way valve is disposed on the wall and is used to unidirectionally guide the flow from the first chamber to the second chamber when the fluid pressure in the first chamber exceeds the limit.

[0010] In some embodiments, the filter includes: a filter screen disposed in the first chamber and a connecting channel that connects the inner cavity of the filter screen to the second chamber.

[0011] In some embodiments, the first chamber is provided with an inlet for the fluid to be filtered to enter, and the second chamber is provided with an outlet for the fluid to be discharged; the fluid in the first chamber is filtered by the filter screen in sequence, and then discharged from the inner cavity of the filter screen, the through channel, the second chamber and the outlet, forming a first fluid path for normal filtering; the fluid in the first chamber is discharged from the one-way valve, the second chamber and the outlet in sequence, forming a second fluid path for overflow when the fluid pressure exceeds the limit.

[0012] In some embodiments, the wall body is provided with a through hole, and the one-way valve is arranged at the through hole; the filter assembly further comprises a sensing switch for sensing displacement of the one-way valve.

[0013] In some embodiments, the filter screen is arranged in the first chamber in a horizontal direction.

[0014] In the second aspect, the embodiments of the present application provide a control method of a clothes treatment apparatus, the clothes treatment apparatus comprising a filter assembly and a water pump; the filter assembly is connected to the water pump, the filter assembly has a second fluid path for overflow when the fluid pressure exceeds the limit and a sensing device on the second fluid path; the method comprises:

[0015] obtaining an electrical signal generated by the sensing device, the electrical signal indicating that the second fluid path is open;

[0016] controlling the water pump to reduce power or stop working in a current water pumping cycle based on the electrical signal.

[0017] In some embodiments, based on the electrical signal, it is determined that the number of times that the sensing device opens the second fluid path reaches a set number of times, and alarm information for indicating manual cleaning of the filter assembly is generated.

[0018] In some embodiments, the method further comprises:

[0019] determining that the clothes treatment apparatus reaches a set condition in a washing stage and / or a rinsing stage;

[0020] controlling the water pump to run at least one water pumping cycle, the water pumping cycle comprising a first working time length and a second stopping working time length.

[0021] In some embodiments, the method further comprises:

[0022] based on the electrical signal, it is determined that the sensing device opens the second fluid path in a last water pumping cycle, and alarm information for indicating manual cleaning of the filter assembly is generated.

[0023] In some embodiments, the method further comprises:

[0024] generating, based on the electrical signal, indication information indicating that the second fluid path is conducted.

[0025] In a third aspect, an embodiment of the present application provides a laundry treating apparatus, comprising: a filter assembly and a water pump; the filter assembly is communicated with the water pump, the filter assembly has a second fluid path for overflow when fluid pressure is over-limit and a sensing device on the second fluid path;

[0026] The laundry treating apparatus further comprises: a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is configured to execute the steps of the method of the second aspect of the present application when running the computer program.

[0027] In a fourth aspect, an embodiment of the present application provides a storage medium, the storage medium has a computer program stored thereon, the computer program is executed by a processor to implement the steps of the method of the second aspect of the present application.

[0028] The technical scheme provided by the embodiment of the present application, the filter assembly comprises a shell, a filter and a one-way valve, the shell comprises: a first chamber, a second chamber and a wall body for spacing the first chamber and the second chamber, the filter is arranged in the shell, and the one-way valve is arranged on the wall body and used for conducting in the direction from the first chamber to the second chamber when the fluid pressure in the first chamber is over-limit, so that the fluid to be filtered in the shell can bypass the filter based on the one-way. In this way, the filtering efficiency of the filter assembly can be effectively guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a structural schematic diagram of a filter assembly according to an embodiment of the present application;

[0030] Figure 2 FIG. 2 is a sectional view along A-A of the filter assembly according to an embodiment of the present application; Figure 1 FIG. 2 is a sectional view along A-A of the filter assembly according to an embodiment of the present application;

[0031] Figure 3 FIG. 3 is a flow direction schematic diagram of a first fluid path of the filter assembly according to an embodiment of the present application;

[0032] Figure 4 FIG. 4 is a flow schematic diagram of a control method of a laundry treating apparatus according to an embodiment of the present application;

[0033] Figure 5 FIG. 5 is a structural schematic diagram of a laundry treating apparatus according to an embodiment of the present application;

[0034] Figure 6 FIG. 6 is another structural schematic diagram of a laundry treating apparatus according to an embodiment of the present application;

[0035] Figure 7Fig. 1 is a schematic diagram of a hardware structure of a laundry treating apparatus according to an embodiment of the present application;

[0036] Figure 8 Fig. 2 is a schematic diagram of a control method of a laundry treating apparatus according to an embodiment of the present application.

[0037] Reference Signs List:

[0038] 1, cabinet; 2, filter assembly; 3, tub assembly; 4, water pump; 5, pipe;

[0039] 21, housing; 21A, first chamber; 21B, second chamber; 211, wall;

[0040] 212, inlet; 213, outlet; 2111, through hole;

[0041] 22, filter; 221, filter body; 222, filter screen;

[0042] 221A, through passage; 222A, inner cavity;

[0043] 23, one-way valve;

[0044] 21C, third chamber; 24, detergent dispensing assembly;

[0045] 25, first end cover; 26, second end cover; 27, third end cover; 28, scraper. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present application clearer, the following will further describe the present application with reference to the accompanying drawings, and the described embodiments should not be regarded as limiting the present application, and all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0047] In the description of the present application, "some embodiments" are involved, which describe a subset of all possible embodiments, but it can be understood that "some embodiments" can be the same subset or different subset of all possible embodiments, and can be combined with each other without conflict.

[0048] In the description of the present application, the terms "first, second" and the like are merely to distinguish similar objects, and do not represent a specific order of the objects, and it can be understood that "first, second" and the like can be interchanged with a specific order or sequence as allowed, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. Unless otherwise specified, the meaning of "a plurality of" is at least two.

[0049] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] This application also provides a filter component, such as... Figures 1 to 3 As shown, the filter assembly includes a housing 21, a filter 22, and a one-way valve 23. The housing 21 includes a first chamber 21A, a second chamber 21B, and a wall 211 separating the first chamber 21A and the second chamber 21B. The filter 22 is disposed within the housing 21. The one-way valve 23 is disposed on the wall 211 and is used to unidirectionally open in the direction from the first chamber 21A to the second chamber 21B when the fluid pressure in the first chamber 21A exceeds the limit.

[0053] Understandably, when filter 22 is partially blocked, the flow rate of fluid passing through filter 22 per unit time will decrease, resulting in an increase in fluid pressure inside housing 21. By opening check valve 23, the fluid to be filtered inside housing 21 can bypass filter 22, thereby effectively ensuring the filtration efficiency of the filter assembly. This ensures that even if filter 22 is not cleaned in time, serious filtration blockage will not occur.

[0054] Exemplarily, the filter 22 comprises a filter screen 222 arranged in the first chamber 21A and a through channel 221A connecting an inner cavity 222A of the filter screen 222 to the second chamber 21B. In this way, the fluid in the first chamber 21A can pass through the filter screen 222 from the outside to the inner cavity 222A of the filter screen 222 and then enter the second chamber 21B through the through channel 221A.

[0055] Exemplarily, the first chamber 21A is provided with an inlet 212 for the fluid to be filtered to enter, and the second chamber 21B is provided with an outlet 213 for the fluid to be discharged. The fluid in the first chamber 21A is filtered by the filter screen 222 in sequence, and then discharged from the inner cavity 222A of the filter screen 222, the through channel 221A, the second chamber 21B and the outlet 213, forming a first fluid path for normal filtering. The fluid in the first chamber 21A is discharged in sequence through the one-way valve 23, the second chamber 21B and the outlet 213, forming a second fluid path for overflow when the fluid pressure exceeds the limit. In this way, when the fluid pressure in the first chamber 21A is normal, the fluid to be filtered can be normally filtered through the first fluid path, and when the fluid pressure in the first chamber 21A exceeds the limit, the fluid to be filtered can be drained through the second fluid path, thereby avoiding the fluid pressure in the housing 21 from exceeding the limit due to the blockage of the fluid.

[0056] Exemplarily, the wall 211 is provided with a through hole 2111, and the one-way valve 23 is arranged at the through hole 2111. The filter assembly further comprises a sensing switch for sensing the displacement of the one-way valve 23.

[0057] It can be understood that the number of through holes 2111 provided on the wall 211 can be multiple, and the one-way valves 23 can be arranged one by one corresponding to the through holes 2111, so that when the pressure in the first chamber 21A is too large, the fluid in the first chamber 21A can be drained to the second chamber 21B through the multiple one-way valves 23.

[0058] Exemplarily, the one-way valve 23 can be fixed on the wall 211 by a spring. When the water pressure in the first chamber 21A is greater than the elastic force of the spring, the one-way valve 23 will be opened by the water pressure, thereby being one-way conducted in the direction from the first chamber 21A to the second chamber 21B, and when the water pressure in the first chamber 21A returns to normal, the one-way valve 23 can be closed by the restoring force of the spring, thereby shutting off the second fluid path.

[0059] Exemplarily, the one-way valve 23 can also be an elastic element arranged at the through hole 2111, for example, a plastic elastic element, which can be opened to open the through hole 2111 under the action of water pressure or restored to the state of closing the through hole 2111 under the pressureless state.

[0060] For example, the inductive switch for sensing the displacement of the one-way valve 23 can be a reed switch or similar electromagnetic inductive switch.

[0061] Here, the inductive switch can be fixed to the housing 21 via a mounting member and kept at a reasonable distance from the one-way valve 23, which can be fixed with a following magnet device, such as a permanent magnet or an electromagnetic coil, so as to generate a magnetic field acting on the inductive switch under the displacement of the one-way valve 23.

[0062] For example, the reed switch includes two magnetic reed pieces sealed in a glass tube and at least partially overlapped, and a small gap is provided between the two magnetic reed pieces. When the one-way valve is open, the magnet device on the one-way valve is close to the reed switch, at this time, the two magnetic reed pieces are in contact, and then the reed switch is turned on, so that the processor of the clothes treatment device receives a high-level signal; when the one-way valve is reset to the closed state, the magnet device is away from the reed switch, and the two magnetic reed pieces of the reed switch will return to their original spaced positions, so that the processor of the clothes treatment device receives a low-level signal.

[0063] In some embodiments, the filter screen 222 is arranged in the first chamber 21A in a horizontal direction.

[0064] For example, as shown in Figure 3 The filter 22 includes a filter screen 222 and a filter body 221 for supporting the filter screen 222. The material of the filter screen 222 can be metal, plastic or the like. The filter aperture of the filter screen 222 can be reasonably selected according to the filtering requirement. For example, the mesh number of the filter screen 222 can be greater than 120, so as to effectively filter the foreign matters such as lint and hair on the clothes. The mesh number refers to the number of mesh holes in an area of 1 inch * 1 inch.

[0065] For example, the housing 21 is provided with a first end cover 25 at the inlet 212, the first end cover 25 has a convex portion which is in abutment with a first end of the filter body 221, and the first end cover 25 is provided with a gap (not shown in the figure) for the fluid to be filtered to enter the first chamber 21A. The second end of the filter body 221 penetrates the wall body 211 and extends to the second chamber 21B, and the second end forms a conductive passage 221A which connects the inner cavity 222A of the filter screen 222 to the second chamber 21B.

[0066] It can be understood that, since the filter screen 222 is arranged in the first chamber 21A in a horizontal direction, and the filter screen 222 is substantially in a long cylindrical shape, the water to be filtered in the first chamber 21A has a larger contact area with the filter screen 222, thereby increasing the effective filtering area of the filter screen 222, and the water after entering the inner cavity 222A of the filter screen 222 is effectively filtered and can be discharged through the conductive passage 221A and the outlet 213, i.e. forming a first fluid path. For details, please refer to Figure 4The arrows in the diagram indicate the flow direction.

[0067] Understandably, when the filter 222 becomes clogged, causing an increase in water pressure in the first chamber 21A, the one-way valve 23 will deform and open under the action of water pressure, and the reed switch will feed back an electrical signal to the clothing processing equipment under the action of a magnetic field, so that the clothing processing equipment can suspend the operation of the pump in the current pumping cycle or reduce the power of the pump.

[0068] For example, the housing 21 may also be provided with a second end cap 26 and a third end cap 27 on the second chamber 21B side. For example, the second end cap 26 and the third end cap 27 cooperate to prevent fluid in the second chamber 21B from overflowing to the outside of the housing 21 from the part other than the outlet 213.

[0069] For example, the housing 21 may also be provided with a scraper 28 on the inner wall surface of the first chamber 21A for scraping off impurities such as lint from the surface of the filter screen 222.

[0070] In some embodiments, such as Figure 1 As shown, the housing 21 also has a third chamber 21C for dispensing detergent, the third chamber 21C being provided with a water inlet for water intake and a drain outlet for water discharge.

[0071] It is understood that the filter assembly in this application embodiment can have the function of dispensing detergent from the detergent dispenser of a garment processing device. That is, the filter assembly in this application embodiment integrates the water filtration function and the detergent dispensing function during the washing process, thereby making the filter assembly more functional and saving on the design and space occupation of related assembly structures on the garment processing device.

[0072] For example, the filter assembly also includes a detergent dispensing assembly 24 detachably disposed within the third chamber 21C.

[0073] Here, the detergent dispensing assembly 24 can be snapped into the third chamber 21C, for example, by using a drawer-type housing to engage with the third chamber 21C. This detergent dispensing assembly 24 can have multiple spaced chambers for easy placement of various detergents such as washing liquid, fabric softener, and disinfectant. The design of the detergent dispensing assembly 24 can be referenced from related technologies and will not be elaborated further here.

[0074] This application also provides a control method for a garment processing device. Before describing the control method for the garment processing device in this application, the garment processing device involved in this application will be briefly described.

[0075] The laundry treating apparatus of the embodiments of the present application comprises a filter assembly, a tub assembly, and a water pump for pumping water in the tub assembly; the filter assembly is connected to the outlet of the water pump through a pipeline, and the outlet of the filter assembly is connected to the tub assembly, so that the water in the tub assembly is filtered through the filter assembly and discharged into the tub assembly, and the cycle is repeated to realize the filtering treatment of the water in the tub assembly.

[0076] The filter assembly has a first fluid path for normal filtering and a second fluid path for overflow when the fluid pressure exceeds the limit, and the laundry treating apparatus further comprises a sensing device arranged on the second fluid path.

[0077] It can be understood that the water pump can be a water pump. The tub assembly can be a single tub structure or a double tub structure comprising a water containing tub and an inner cylinder in the water containing tub. The sensing device on the second fluid path can be a dry reed tube or the like, and the embodiments of the present application do not limit the sensing device.

[0078] The embodiments of the present application provide a control method of a laundry treating apparatus, as shown in Figure 4 , the method comprises the following steps.

[0079] In step 401, an electric signal indicating that the second fluid path is conducted is obtained by the sensing device.

[0080] In step 402, the power of the water pump is reduced or the water pump is stopped based on the electric signal in the current pumping cycle.

[0081] Here, the laundry treating apparatus can realize intelligent control of the water pump based on the detection result of the sensing device, and the power of the water pump can be reduced or the water pump can be stopped when the filtering efficiency of the filter assembly is limited, so that the filtering efficiency and the filtering quality can be considered.

[0082] Exemplarily, the filter assembly can adopt the structure as shown in Figures 1 to 3 , the shell 21 comprises a first chamber 21A, a second chamber 21B, and a wall 211 for spacing the first chamber 21A and the second chamber 21B. The filter 22 comprises a filter screen 222 arranged in the first chamber 21A and a conducting passage 221A connecting the inner cavity 222A of the filter screen 222 to the second chamber 21B. The sensing device comprises a one-way valve 23 arranged on the wall 211 and a sensing switch for sensing the displacement of the one-way valve 23, such as a dry reed tube or the like.

[0083] It should be noted that when part of the filter screen 222 is blocked, the flow rate of the fluid in the first chamber 21A entering the inner cavity 222A of the filter screen 222 per unit time is affected, so that the fluid pressure between the first chamber 21A and the outside of the filter screen 222 increases with the accumulation of the fluid. When the one-way valve 23 is one-way conducted under the fluid pressure, the second fluid path is conducted, so that the fluid in the first chamber 21A can enter the second chamber 21B and then be discharged from the filter assembly. At this time, the inductive switch is turned on and generates an electrical signal to the processor of the clothes treatment apparatus. The processor can control the water pump to reduce power or pause work based on the received electrical signal, so as to balance the filtering efficiency and filtering quality.

[0084] Here, the water pumping cycle is used for the water pump to guide the water in the tub assembly to the filter assembly.

[0085] Exemplarily, before the acquisition of the electrical signal generated by the inductive device indicating that the second fluid path is conducted, the control method comprises:

[0086] determining that the clothes treatment apparatus meets a set condition in a washing stage and / or a rinsing stage;

[0087] controlling the water pump to operate at least one water pumping cycle, the water pumping cycle comprising a working first duration and a stopping working second duration.

[0088] Here, the clothes treatment apparatus can control the water pump to guide the water in the tub assembly to the filter assembly in the washing stage and / or the rinsing stage based on the set condition, so that the impurities in the water in the tub assembly can be effectively collected by the filter assembly, so that the ability of the filtered water to accommodate impurities in the subsequent washing and / or rinsing process is enhanced, and the original impurities are avoided from being reattached to the clothes, thereby saving the washing water and washing time, and improving the washing and / or rinsing effect.

[0089] It can be understood that the water pump is controlled to operate based on the water pumping cycle, so that the water pump works intermittently, which can effectively avoid the situation that the water in the filter assembly to be filtered cannot be discharged in time and the mesh holes of the filter screen are blocked due to continuous work of the water pump. Exemplarily, the water pumping cycle can be 3 minutes of work and 30 seconds of stopping work, that is, the water pump works for 3 minutes and then stops working for 30 seconds, and then the water pumping cycle is repeated until a set number of times is reached.

[0090] It should be noted that when the water pump stops working, the inlet of the filter assembly is not introduced with new water to be filtered, so that the filter assembly can empty the residual water in time, avoiding the impurities adhering to the surface of the filter screen, and facilitating to improve the filtering efficiency of the next water pumping cycle.

[0091] Exemplarily, before the determination that the clothes treatment apparatus meets the set condition in the washing stage and / or the rinsing stage, the control method further comprises:

[0092] determine the number of times of running the draining cycle of the washing phase based on the washing duration of the washing phase; and / or,

[0093] determine the number of times of running the draining cycle of the rinsing phase based on the rinsing duration of the rinsing phase.

[0094] It can be understood that the number of times of running the draining cycle based on the washing duration of the washing phase, and / or the number of times of running the draining cycle of the rinsing phase based on the rinsing duration of the rinsing phase, makes the number of times of running the draining cycle of the washing phase and / or the rinsing phase adapt to the corresponding duration, which can save the trouble of pre-setting and improve the intelligent level of the clothes processing equipment.

[0095] Exemplarily, the clothes processing equipment is determined to reach the set condition in the washing phase, including at least one of the following:

[0096] determine that the water level of the water in the tub assembly reaches a set water level and the running duration of the tub assembly reaches a first set duration;

[0097] determine that the running duration of the washing phase reaches a second set duration;

[0098] determine that the rotating speed of the tub assembly reaches a set rotating speed;

[0099] determine that the water temperature of the water in the tub assembly reaches a set temperature.

[0100] It can be understood that the set condition is used to make the lint and other impurities on the clothes in the tub assembly fully mix with the washing water, so that the impurities in the water can be filtered and collected by the filter assembly under the action of the water pump, so that the ability of the filtered water to accommodate impurities in the subsequent washing and rinsing process is enhanced, and the original impurities are avoided from being reattached to the clothes, thereby saving the washing water. The set condition can be determined based on one or more of the set water level, the set duration, the set rotating speed, the set temperature, etc. in the above conditions, which is not limited in the embodiments of the present application.

[0101] Exemplarily, taking the tub assembly with a double-tub structure as an example, the tub assembly includes an outer tub for containing water and an inner drum for washing clothes, and the set condition of the washing phase can be that the water level in the outer tub reaches a preset water level and the inner drum rotates for 5 minutes; or, the running duration of the washing phase reaches 15 minutes; or, the rotating speed of the inner drum reaches 1000 rpm (revolutions per minute); or, the washing water is heated to a set temperature (such as 30 degrees Celsius or 40 degrees Celsius, etc.).

[0102] Exemplarily, the clothes processing equipment is determined to reach the set condition in the rinsing phase, including:

[0103] determining that the water level of the water in the tub assembly reaches a rinsing water level, and / or determining that the tub assembly is started.

[0104] Exemplarily, taking the tub assembly with a double tub structure as an example, the setting condition of the rinsing stage can be that the water level in the outer tub reaches the rinsing water level, or that the inner drum is started.

[0105] It can be understood that, in the rinsing stage, since the water pump can cyclically purify the rinsing water, the water circulation of several rinsing stages can be performed while the overall water amount is kept unchanged, and no water is added or drained in this stage, so that the consumption of rinsing water can be saved.

[0106] In some embodiments, after the control method based on the electrical signal controls the water pump to reduce power or stop working in the current water pumping period, the control method further includes:

[0107] determining, based on the electrical signal, that the number of times that the induction device turns on the second fluid path reaches a set number of times, and generating alarm information for indicating manual cleaning of the filter assembly.

[0108] It can be understood that, if the laundry treating apparatus determines that, in the working process, the number of times that the induction device turns on the second fluid path reaches the set number of times, it is determined that the filter assembly has a fault that should be blocked and cannot meet the filtering requirement, and manual cleaning is required, and the laundry treating apparatus can generate and output alarm information for indicating manual cleaning of the filter assembly. The alarm information can be audible and visual alarm information or alarm information sent to a handheld communication terminal of a user, and embodiments of the present application do not make specific limitations thereon. Exemplarily, the laundry treating apparatus can output the alarm information through a buzzer or an indicator light, etc. In this way, the reminding of manual cleaning of the filter assembly can be automatically realized, and the defect of low filtering efficiency of the filter assembly caused by the user forgetting to clean or not cleaning in time can be alleviated.

[0109] In some embodiments, after the control method based on the electrical signal controls the water pump to reduce power or stop working in the current water pumping period, the control method further includes:

[0110] determining, based on the electrical signal, that the induction device turns on the second fluid path in the last water pumping period, and generating alarm information for indicating manual cleaning of the filter assembly.

[0111] Here, the last pumping cycle refers to the last pumping cycle corresponding to the running phase of the laundry treatment apparatus. For example, in the case that the laundry treatment apparatus runs the pumping cycle in the washing phase and the rinsing phase, the last cycle can be understood as the last pumping cycle before the laundry treatment apparatus exits the rinsing phase. It can be understood that, since the alarm information for indicating the manual cleaning of the filter assembly is generated based on the electrical signal only in the last pumping cycle, the running program of the laundry treatment apparatus is not interrupted, which is beneficial to meet the current washing demand of the user.

[0112] In some embodiments, after the electrical signal indicating that the second fluid path is conducted is generated by the acquisition sensing device, the control method further includes:

[0113] generating, based on the electrical signal, indication information indicating that the second fluid path is conducted.

[0114] Exemplarily, during the running process of the laundry treatment apparatus, if the situation that the second fluid path is conducted occurs, the laundry treatment apparatus can control the indicator light to switch states based on the electrical signal, for example, the indicator light is switched to a flashing state, so as to prompt the user that the filter assembly is in the state of draining water through the second fluid path.

[0115] Exemplarily, as shown in Figure 5 and Figure 6 , the present application embodiment further provides a laundry treatment apparatus, which comprises a cabinet 1, a tub assembly 3 arranged in the cabinet 1, and further comprises: a water pump 4 for pumping water in the tub assembly 3, and the aforementioned filter assembly 2 is arranged on the cabinet 1 and is connected to the outlet of the water pump 4 through a pipeline 5.

[0116] As shown in Figure 7 , the laundry treatment apparatus 700 provided by the present application embodiment comprises at least one processor 701, a memory 702 and a user interface 703. Various components in the laundry treatment apparatus 700 are coupled together through a bus system 704. It can be understood that the bus system 704 is used to realize the connection communication between these components. In addition to including a data bus, the bus system 704 also includes a power bus, a control bus and a status signal bus. However, in order to clearly illustrate, all kinds of buses are marked as the bus system 704 in Figure 7 .

[0117] The user interface 703 in the present application embodiment can include a display, a keyboard, a mouse, a trackball, a click wheel, a key, a button, a touchpad or a touch screen, etc.

[0118] The memory 702 in the present application embodiment is used to store various types of data to support the operation of the laundry treatment apparatus. Examples of these data include: any computer programs for operating on the laundry treatment apparatus.

[0119] The control method of the laundry treating apparatus disclosed in the embodiments of the present application can be applied to or implemented by the processor 701. The processor 701 can be an integrated circuit chip having a processing capability of signals. In the implementation, each step of the control method of the laundry treating apparatus can be completed by the integrated logic circuit of hardware or the instruction of software in the processor 701. The processor 701 described above can be a general processor, a digital signal processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The processor 701 can implement or execute each method, step, and logic block disclosed in the embodiments of the present application. The general processor can be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiments of the present application, the hardware decoding processor can be directly implemented or executed by the hardware and software module combination in the decoding processor. The software module can be located in the storage medium in the storage 702, and the processor 701 reads the information in the storage 702 to combine the hardware to complete the steps of the control method of the laundry treating apparatus provided in the embodiments of the present application.

[0120] In the exemplary embodiments, the laundry treating apparatus can be implemented by one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field programmable gate arrays (FPGAs), general-purpose processors, controllers, micro controllers (MCUs), microprocessors (Microprocessors), or other electronic elements for executing the aforementioned method.

[0121] It can be appreciated that the memory 702 can be volatile memory or nonvolatile memory, or both. Access to the memory 702 by other components of the system 700 can be controlled by a memory controller. In one embodiment, the memory 702 is a nonvolatile storage such as a hard disk drive, floppy disk drive, tape drive, or optical disk drive. In another embodiment, the memory 702 is a volatile storage such as a random access memory (RAM), which can be static random access memory (SRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), SyncLink DRAM (SLDRAM), or direct Rambus RAM (DRRAM). In one embodiment, a basic input / output system (BIOS) is stored in the memory 702.The memory described in the embodiments of the present application is intended to include, but not limited to, these and any other suitable types of memory.

[0122] In an application example, as shown in Figure 8 The control method of the washing machine can include:

[0123] Step 801, control the washing machine to prewash.

[0124] The washing machine is filled with water for the first time, and the washing agent flows into the inner drum after being washed. After the first water filling is completed, the inner drum rotates at a low speed to soak the clothes. This stage can be understood as a prewash stage before washing.

[0125] Step 802, determine the running times of the pumping cycle in the washing stage and the running times of the pumping cycle in each rinsing program in the rinsing stage.

[0126] Here, the washing machine can determine the first running time of the pumping cycle in the washing stage based on the washing time set by the user or the washing time corresponding to the washing mode, and can determine the second running time of the pumping cycle in each rinsing program based on the rinsing time of each rinsing program set by the user or the rinsing time of each rinsing program corresponding to the washing mode.

[0127] Step 803, enter the washing stage, and when the set condition in the washing stage is reached, control the water pump to run based on the pumping cycle.

[0128] The washing machine is filled with water for the second time, and at least one of the water level, the rotation speed, the washing time, the temperature and the like is monitored to reach a preset condition. At this time, it is considered that the dirt and lint on the clothes enter the water, that is, it is determined that the washing stage reaches the set condition, and at this time the water pump is started to filter the sewage.

[0129] Here, the pumping cycle can be pre-set, for example, the water pump runs for 3 minutes, stops for 30 seconds, and repeats the cycle.

[0130] Step 804, determine that the one-way valve is turned on, then control the water pump to stop working in the current pumping cycle.

[0131] The processor determines that the inductive switch is turned on, then determines that the one-way valve is turned on, and controls the water pump to stop working in the current pumping cycle.

[0132] Exemplarily, if the filter assembly works normally, the one-way valve is not deformed, the magnet device of the one-way valve keeps a distance from the reed switch and is not attracted. When the water pressure in the filter assembly is greater than the deformation value of the one-way valve, the one-way valve is elastically deformed, the magnet device approaches the reed switch, the two are attracted, and the reed switch sends a signal to the computer board of the clothes treatment equipment. The computer board indicates the light to turn on, and the water pump stops water intake. When the water pressure in the filter assembly returns to normal, the one-way valve resets, and the magnet device is separated from the reed switch, and the computer board indicates the light to flicker. In the next water pumping cycle, the water pump continues to pump water, so that the filter assembly filters and collects. If the water pressure is still greater than the deformation value of the one-way valve, the one-way valve is turned on, and the reed switch is actuated, and the computer board indicates the light to keep on. In this way, the operation program of the clothes treatment equipment is not affected.

[0133] In step 805, it is determined that the running number of the water pumping cycle reaches a first running number, and the water pump is stopped.

[0134] In step 806, the rinsing stage is entered, and when a set condition is reached in the rinsing stage, the water pump is controlled to run based on the water pumping cycle.

[0135] Exemplarily, after the washing of the washing machine is completed, the rinsing stage is entered. The washing machine can control the water pump to run based on the water pumping cycle after the rinsing water intake is completed and the inner drum rotates. The rinsing stage purifies water due to the action of the water pump, and can perform water circulation for several times of rinsing while keeping the overall water amount unchanged, and this stage does not intake water and does not drain water, so that water consumption can be saved.

[0136] In step 807, it is determined that the one-way valve is turned on, and the water pump is controlled to stop working in the current water pumping cycle.

[0137] The processor determines that the reed switch is turned on, it is determined that the one-way valve is turned on, and the water pump is controlled to stop working in the current water pumping cycle.

[0138] In step 808, it is determined that the running number of the water pumping cycle reaches a second running number, and the water pump is stopped.

[0139] Here, it is determined that the number of rinsing operations reaches a set number, the rinsing stage is exited, and the water pump is turned off. It can be understood that after each rinsing program is completed, water can be drained and water can be re-introduced, and the water pump is stopped before draining or before water is introduced. When the water level reaches the original water level, the water pump is started again to perform internal circulation rinsing.

[0140] In step 809, it is determined that the one-way valve is turned on in the last water pumping cycle, and alarm information for indicating manual cleaning of the filter assembly is generated.

[0141] Illustratively, if the one-way valve is turned on in the last pumping cycle, the indicator light is continuously turned on and the laundry treating apparatus outputs a voice prompt through the buzzer, indicating that the user needs to manually clean the filter assembly.

[0142] In an exemplary embodiment, the present application also provides a storage medium, i.e., a computer storage medium, specifically a computer readable storage medium, such as a memory 702 storing a computer program executable by the processor 701 of the laundry treating apparatus to complete the steps of the method of the present application. The computer readable storage medium can be a ROM, a PROM, an EPROM, an EEPROM, a Flash Memory, a magnetic surface memory, an optical disc, or a CD-ROM memory, etc.

[0143] It should be noted that "first", "second", etc. are used to distinguish similar objects, and do not necessarily mean a specific order or sequence.

[0144] In addition, the technical solutions described in the present application can be combined arbitrarily without conflict.

[0145] The above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control method of a laundry treating apparatus, characterized by, The laundry treating apparatus comprises a filter assembly and a water pump; the filter assembly is communicated with the water pump; the filter assembly comprises a housing, a filter and a sensing device; the sensing device comprises a one-way valve and a sensing switch for sensing displacement of the one-way valve; the housing comprises a first chamber, a second chamber and a wall for spacing the first chamber and the second chamber; the filter is arranged in the first chamber; the wall is provided with a through hole, and the one-way valve is arranged at the through hole for one-way conduction from the first chamber to the second chamber when fluid pressure in the first chamber exceeds a limit; the first chamber is provided with an inlet for fluid to be filtered to enter, and the second chamber is provided with an outlet for fluid to be discharged; fluid in the first chamber is sequentially discharged through the filter, the second chamber and the outlet, forming a first fluid path for normal filtering; fluid in the first chamber is sequentially discharged through the one-way valve, the second chamber and the outlet, forming a second fluid path for overflow when fluid pressure exceeds the limit; the method comprises: obtaining an electric signal generated by the sensing switch, the electric signal indicating that the second fluid path is conducted; controlling the water pump to reduce power or stop working in a current pumping cycle based on the electric signal; determining that the number of times that the one-way valve conducts the second fluid path reaches a set number of times based on the electric signal, and generating alarm information for indicating manual cleaning of the filter assembly.

2. The method of claim 1, wherein: the filter comprises a filter screen arranged in the first chamber and a conduction passage connecting an inner cavity of the filter screen to the second chamber.

3. The method of claim 2, wherein, The filter screen is arranged in the first chamber in a horizontal direction.

4. The method of claim 1, wherein, The method further comprises: determining that the laundry treating apparatus reaches a set condition in a washing stage and / or a rinsing stage; controlling the water pump to run at least one pumping cycle, the pumping cycle comprising a first time length of working and a second time length of stopping working.

5. The method of claim 1, wherein, The method further comprises: generating alarm information for indicating manual cleaning of the filter assembly based on the electric signal, the alarm information being generated based on the one-way valve conducting the second fluid path in a last pumping cycle.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: generating indication information indicating that the second fluid path is conducted based on the electric signal. 7.A laundry treating apparatus, characterized by, The laundry treating apparatus includes a filter assembly and a water pump; the filter assembly is communicated with the water pump, and the filter assembly includes a housing, a filter, and a sensing device; the sensing device includes a one-way valve and a sensing switch for sensing displacement of the one-way valve; the housing includes a first chamber, a second chamber, and a wall for spacing the first chamber and the second chamber; the filter is arranged in the first chamber; the wall is provided with a through hole, and the one-way valve is arranged at the through hole for unidirectional conduction from the first chamber to the second chamber when fluid pressure in the first chamber exceeds a limit; the first chamber is provided with an inlet for fluid to be filtered to enter, and the second chamber is provided with an outlet for fluid to be discharged; fluid in the first chamber is sequentially discharged through the filter, the second chamber, and the outlet to form a first fluid path for normal filtering; and fluid in the first chamber is sequentially discharged through the one-way valve, the second chamber, and the outlet to form a second fluid path for overflow when fluid pressure exceeds the limit. The laundry treating apparatus further includes a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is configured to execute the steps of the method according to any one of claims 1 to 6 when running the computer program.

8. A storage medium having stored thereon a computer program, characterized in that The computer program is configured to implement the steps of the method according to any one of claims 1 to 6 when executed by the processor.

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