WO2023173979A1 - 一种洗衣机的控制方法及洗衣机 - Google Patents

一种洗衣机的控制方法及洗衣机 Download PDF

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Publication number
WO2023173979A1
WO2023173979A1 PCT/CN2023/075835 CN2023075835W WO2023173979A1 WO 2023173979 A1 WO2023173979 A1 WO 2023173979A1 CN 2023075835 W CN2023075835 W CN 2023075835W WO 2023173979 A1 WO2023173979 A1 WO 2023173979A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
sewage
water
circulation pump
washing machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/075835
Other languages
English (en)
French (fr)
Inventor
刘凯
许升
吕艳芬
赵志龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Washing Machine Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Priority to EP23769489.8A priority Critical patent/EP4491791A4/en
Priority to US18/847,879 priority patent/US20250207313A1/en
Publication of WO2023173979A1 publication Critical patent/WO2023173979A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/38—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/62—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38—Time, e.g. duration
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/06—Recirculation of washing liquids, e.g. by pumps or diverting valves
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08—Draining of washing liquids
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/34—Filtering, e.g. control of lint removal devices
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps

Definitions

  • the invention belongs to the field of laundry equipment, and specifically relates to a control method of a washing machine and a washing machine.
  • the filter of the existing washing machine is generally installed inside the inner barrel or the drainage pump, and is used to filter lint and debris in the washing water.
  • the filter will be filled with lint and debris, which will affect the filtration effect of the filter, cause the drain valve/drain pump to become blocked, and it is easy to breed bacteria. It needs to be cleaned in time, otherwise It will cause pollution of the washing water, cause secondary pollution to the clothes, and affect the health of users.
  • most washing machines require users to remove the filter and clean it manually, which is inconvenient to operate.
  • the prior art has proposed a filter device with a self-cleaning function, which can automatically clean filter impurities such as lint shavings attached inside after completing the filtration process, and discharge the cleaned filter impurities through the water flow.
  • filter impurities such as lint shavings attached inside after completing the filtration process
  • the sewage discharge path from the filter device to the outside is relatively long, and there may be a certain height difference, making it difficult for the sewage in the filter device to be fully discharged without the help of driving force, resulting in filter impurities. Continuous accumulation in the filter device and long-term use still cause the problem of bacterial growth.
  • the filter impurities may cover the filter device.
  • the filter screen in the filter affects the filtration efficiency of filtering impurities. In severe cases, the filtering device may be blocked by filtered impurities, causing the cyclic filtration to be unable to continue, affecting the user experience.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a control method and washing machine for a washing machine that uses a circulation pump to drive a filter device to discharge sewage, and the filter device can discharge sewage multiple times during the washing/rinsing process.
  • a control method for a washing machine includes:
  • the water inlet and outlet ends of the circulating filter pipeline are connected to the water tank respectively, and a circulating pump is installed on it;
  • a filter device is arranged between the circulation pump and the water outlet end of the circulation filter pipeline, and has a sewage outlet for discharging sewage outward;
  • the sewage pipeline is connected to the sewage outlet of the filter device;
  • the washing machine alternates between washing/rinsing processes:
  • Circulation filtration operation close the sewage outlet of the filter device and/or cut off the sewage pipeline, and run the circulation pump to circulate and filter the water in the water tank;
  • the circulation pump continues to run for a certain period of time, and then the circulation filtration operation is performed.
  • the filtering device includes:
  • the filter mechanism is rotatably installed in the filter cavity
  • a driving mechanism used to drive the filter mechanism to rotate in the filter cavity
  • the sewage discharge operation also includes: during the operation of the circulation pump, turning on the driving mechanism to drive the filtering mechanism to rotate in the filtering cavity.
  • cyclic filtering operation includes the following steps:
  • step S2 If the number of times step S2 is performed in this loop filtering operation reaches the preset number of times, end the loop filtering operation, otherwise return to step S2;
  • step S2 the circulation pump continues to run for the third preset time period T 3 ; in step S3 , the circulation pump is turned off and continues for the second preset time period T 2 ; wherein the third preset time period T 3 is greater than the second preset time period T 3 .
  • the default duration is T 2 .
  • the filtering device includes:
  • the filter mechanism is rotatably installed in the filter cavity
  • a driving mechanism used to drive the filter mechanism to rotate in the filter cavity
  • Step S3 also includes: while the circulation pump is closed, turning on the driving mechanism to drive the filtering mechanism to rotate in the filtering cavity.
  • the driving mechanism is turned on during the operation of the circulation pump to drive the filtering mechanism to continuously rotate in the filter cavity for the first preset time period T 1 ;
  • step S3 the driving mechanism drives the filtering mechanism to continuously rotate in the filter cavity for a second preset time length T 2 ; the second preset time length T 2 is less than the first preset time length T 1 .
  • the washing machine further includes an external drainage pipeline for draining water to the outside.
  • the water inlet end of the external drainage pipeline is connected between the circulation pump and the filtering device on the circulating filter pipeline; the filtering device and the external drainage Select one of the pipelines to be connected to the circulation pump;
  • the filter device is connected to the circulation pump
  • the washing machine After the washing/rinsing process is completed, the washing machine performs a sewage discharge operation. After the sewage discharge operation is completed, the circulation pump and the external discharge pipeline are connected, and the circulation pump runs, driving the water in the water tank to be discharged from the washing machine through the external discharge pipeline.
  • the circulation pump and filtering device are connected; water is started to be fed into the water tank, and a circulation filtration operation is performed. After the circulation filtration operation is completed, a sewage discharge operation is performed; the circulation filtration operation and the sewage discharge operation are executed alternately, until the wash/rinse cycle is complete.
  • Another object of the present invention is to provide a washing machine that adopts the above-mentioned control method of the washing machine.
  • the circulation pump is running to drive The sewage in the dynamic filtering device is discharged into the recovery device through the sewage pipeline.
  • the present invention has the following beneficial effects compared with the prior art.
  • the circulation filtration of the washing machine needs to be realized by a circulation pump.
  • the circulation pump can also be used to provide driving force for the discharge of sewage in the filter device. Without adding additional power, it can ensure that the filter is carried in the filter device during the sewage discharge operation. Impurity sewage can be fully discharged, reducing the residue of filtered impurities.
  • the washing machine alternately performs cyclic filtration operations and sewage discharge operations during the washing/rinsing process, which can timely discharge the filter impurities remaining inside the filter device during the cyclic filtration operation, avoiding the accumulation of filter impurities inside the filter device and affecting the filtration. efficiency.
  • the filter mechanism of the filter device is controlled to continuously rotate during the sewage discharge operation, so that the filter impurities attached to the surface of the filter mechanism are peeled off by centrifugal force.
  • the internal filtration of the filter device can be improved. Impurity cleaning efficiency.
  • the end of the sewage pipeline is connected to the recovery device, which can receive the sewage discharged by the filtering device, preventing filter impurities such as lint shavings carried in the sewage from being directly discharged from the washing machine, thereby preventing microplastics in the filtered impurities from entering the ecological cycle with the drainage water flow. , affecting the ecological environment and human health.
  • Figure 1 is a schematic structural diagram of a washing machine (circulation filtration process) in an embodiment of the present invention
  • Figure 2 is an enlarged schematic diagram of position A in Figure 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of a washing machine (sewage discharge process) in an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a washing machine (drainage process) in an embodiment of the present invention.
  • Figure 5 is an enlarged schematic view of B in Figure 4 of the present invention.
  • FIG. 6 is a flow chart of the control method of the washing machine in Embodiment 1 of the present invention.
  • Figure 7 is a schematic structural diagram of the filtering device in Embodiment 5 of the present invention.
  • Figure 8 is a schematic diagram of the C-C section in Figure 7 of the present invention.
  • connection should be understood in a broad sense.
  • connection can be a fixed connection or a detachable connection.
  • Connection, or integral connection can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.
  • connection or integral connection
  • connection can be a mechanical connection or an electrical connection
  • connection can be a direct connection or an indirect connection through an intermediate medium.
  • specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the washing machine in this embodiment includes:
  • the water inlet and outlet ends of the circulating filter pipeline are respectively connected with the water tank 100, and a circulating pump 400 is installed on it;
  • the filter device 600 is disposed between the circulation pump 400 and the water outlet end of the circulation filtration pipeline, and has a water inlet 6101, a filtered water outlet 6102, and a sewage discharge outlet 6103.
  • the water inlet 6101 and the filtered water outlet 6102 are connected to the circulation filtration pipeline.
  • the sewage outlet 6103 is used to discharge sewage to the outside;
  • the sewage pipeline 240 is connected to the sewage outlet 6103 of the filtering device 600 and is used to receive sewage discharged from the sewage outlet 6103.
  • the filtering device 600 includes:
  • the filter cavity 610 is provided with a water inlet 6101, a filtered water outlet 6102 and a sewage outlet 6103;
  • the filter mechanism 620 is rotatably arranged in the filter cavity 610;
  • the driving mechanism 660 is used to drive the filter mechanism 620 to rotate in the filter cavity 610 .
  • the filter mechanism 620 divides the interior of the filter cavity 610 into an outer cavity and an inner cavity.
  • the water inlet 6101 is connected to the outer cavity, and the filtered water outlet 6102 is connected to the inner cavity.
  • the water in the water cylinder 100 enters the outer chamber through the water inlet 6101, enters the inner chamber through the filter mechanism 620 to be filtered, and flows out from the filtered water outlet 6102.
  • Filter impurities such as lint shavings carried in the water adhere to the outer wall of the filter mechanism 620. .
  • the water tank drainage pipe 260 connects the water tank 100 and the water inlet end of the circulation pump 400;
  • the drainage pipeline 210 has one end connected to the water outlet end of the circulation pump 400;
  • the circulation pipeline 220 has one end connected to the drainage pipeline 210 and the other end connected to the water inlet 6101 of the filtering device 600;
  • One end of the return pipeline 230 is connected to the filtered water outlet 6102 of the filtering device 600, and the other end is connected to the water tank 100 to transport the filtered water to the water tank 100.
  • the return pipe 230 is specifically connected to the window gasket 110 at the mouth of the water tank 100 .
  • the washing machine of this embodiment also includes an external drainage pipeline 250 for draining water to the outside of the washing machine.
  • the water inlet of the external drainage pipeline 250 The end is connected between the circulation pump 400 and the filter device 600 on the circulation filter pipeline, and one of the filter device 600 and the discharge pipeline 250 is connected to the circulation pump 400 .
  • the switching device 270 includes:
  • the water inlet is connected with the water outlet of the circulation pump 400;
  • the first water outlet is connected with the filtering device 600;
  • the second water outlet is connected with the external discharge pipe 250;
  • a switching mechanism controls the first water outlet and the second water outlet to selectively communicate with the water inlet.
  • an openable/closable sewage control valve 241 is provided on the sewage pipeline 240.
  • a return water control valve 231 is also provided on the return water pipeline 230.
  • the return water control valve 231 is opened to conduct the return water pipeline 230, and the sewage control valve 241 is closed at the same time.
  • the water in the water tank 100 can be passed into the filtering device 600 for processing. Filter, and return to the water tank 100 through the return pipe 230 after filtering.
  • the sewage in the filter device 600 can be discharged into the sewage pipeline 240 through the sewage outlet 6103.
  • the washing machine alternately performs cyclic filtering operations and sewage discharge operations during the washing/rinsing process.
  • the circulation filtration operation includes: closing the sewage control valve 241 to cut off the sewage pipeline 240, and running the circulation pump 400 to circulate and filter the water in the water tank 100.
  • the sewage discharge operation includes: opening the sewage control valve 241 to connect the sewage pipeline 240, running the circulation pump 400, and driving the sewage in the filtering device 600 to discharge into the sewage pipeline 240.
  • the filter impurities such as lint residues remaining inside the filter device 600 during the circulating filtering process can be discharged in a timely manner, thereby preventing the filter impurities from being stored in the filter device. 600 internal accumulation, affecting the filtration efficiency.
  • the solution of this embodiment compared with the method of continuously performing the cyclic filtering operation until the end of washing/rinsing, effectively prevents excessive accumulation of filter impurities, causing the filter device 600 to become clogged. Condition.
  • the operation of the circulation pump 400 provides a driving force for the discharge of sewage in the filtering device 600, which can fully discharge the sewage in the filtering device 600, thus preventing the sewage from filtering when the outlet end of the sewage pipeline 240 is higher than the sewage outlet 6103.
  • the problem of a large amount of filtered impurities remaining in the filter device 600 is thereby reduced.
  • the circulation pump 400 is also used to provide driving force for the filter device 600 to discharge sewage, without adding additional power, thus saving the time of setting up an additional driving device. It requires less space and can also save production costs.
  • an openable/closable sewage valve can also be provided at the sewage outlet of the filter device, and a sewage control valve is no longer provided on the sewage pipeline.
  • the drain outlet of the filter device can be closed by closing the drain valve, so that the water flowing into the filter device can flow back into the water tank; during the drain operation, the drain valve can be opened by To open the sewage outlet of the filter device so that the sewage in the filter device can be discharged into the sewage pipe.
  • the circulation pump 400 continues to run for the first preset time period T 1 and then performs the circulation filtration operation.
  • the sewage discharge operation also includes: during the operation of the circulation pump 400, turning on the driving mechanism 660 to drive the filter mechanism 620 to continue rotating in the filter cavity 610 for the first preset time period T 1 .
  • the circulation pump 400 and the driving mechanism 660 are kept open at the same time.
  • the filter mechanism 620 By controlling the filter mechanism 620 to rotate at a high speed in the filter cavity 610, the filtered impurities attached to the surface of the filter mechanism 620 can be removed by centrifugal force. It is thrown onto the inner wall of the filter cavity 610, then blends into the water flow in the filter cavity 610, and is discharged through the sewage outlet 6103 with the water. This avoids the problem that filtered impurities adhere too firmly to the filtering mechanism 620 and cannot be fully discharged.
  • the washing machine controls the circulation pump 400 to be turned on intermittently during the circulation filtration operation.
  • the cyclic filtering operation includes:
  • step S2 If the number of times step S2 is performed in this loop filtering operation reaches the preset number of times, the loop filtering operation is ended, otherwise, return to step S2.
  • step S3 also includes: while the circulation pump 400 is closed, the driving mechanism 660 is turned on to drive the filter mechanism 620 to rotate in the filter cavity 610 .
  • the rotation of the filter mechanism 620 can stir the water flow in the filter cavity 610, so that the filter impurities attached to the outer wall of the filter mechanism 620 are peeled off under the dual effects of centrifugal force and agitated water flow, and merged into the water in the filter cavity 610. This helps the filter impurities attached to the outer wall of the filter mechanism 620 to fully fall off.
  • step S2 the circulation pump 400 continues to run for the third preset time period T 3 .
  • step S3 the circulation pump 400 is turned off and continues for the second preset time period T 2 , that is, the driving mechanism 660 drives the filter mechanism 620 to continue rotating in the filter cavity 610 for the second preset time period T 2 .
  • the third preset time length T 3 is greater than the second preset time length T 2 .
  • the filtering mechanism 620 includes a filter screen, and the filtering function is implemented through the mesh on the filter screen.
  • the specific values of the second preset time length T 2 and the third preset time length T 3 can be obtained in advance through a large number of experiments and directly written into the control program of the washing machine.
  • the third preset time period T 3 is specifically the time period during which most of the mesh holes on the filter screen are covered by filtered impurities when the filter device 600 continues to filter; the specific value of the second preset time period T 2 is to ensure that the filtering device 600 continues to filter.
  • the filtering impurities on the filtering mechanism 620 can be fully removed.
  • the third preset time period T 3 is greater than the second preset time period T 2 .
  • the cycle filtration operation includes the following steps:
  • step S4' If the number of times step S2' is performed in this loop filtering operation reaches the preset number of times, the loop filtering operation is ended, otherwise, return to step S2'.
  • step S3 the filter mechanism 620 continues to rotate in the filter cavity 610 for a second preset time period T 2 .
  • the filter mechanism 620 continues to rotate in the filter cavity 610 for the first preset time period T 1 .
  • the second preset time length T 2 is less than the first preset time length T 1 .
  • each rotation of the filter mechanism 620 during the cyclic filtration operation is used to prevent the filter impurities from being too firmly attached, and the rotation of the filter mechanism 620 during the sewage discharge operation needs to ensure that the attached filter impurities are fully shed.
  • the continuous rotation time of the filter mechanism 620 is longer, which is beneficial to ensuring that there are almost no filter impurities attached to the surface of the filter mechanism 620 when the next cycle filtration operation is performed.
  • the circulation pipeline 220 and the drainage pipeline 210 are connected through the switching device 270, so that the filtering device 600 and the circulation pump 400 are connected, thereby alternately executing the circulation filtering operation and sewage discharge. operate.
  • the washing machine first performs a sewage discharge operation, that is, opens the sewage control valve 241, turns on the driving mechanism 660 to drive the filter mechanism 620 to rotate, and at the same time, the circulation pump 400 operates to drive the filter device 600.
  • the sewage is discharged into the sewage pipe 240.
  • the switching device 270 operates to connect the drainage pipeline 210 and the external discharge pipeline 250, that is, the circulation pump 400 is connected to the external discharge pipeline 250, and the circulation pump 400 runs to drive the water in the water tank 100 to pass through the external discharge pipe.
  • the drain line 250 drains the washing machine.
  • the circulation pump 400 is used not only to circulate and filter the water in the water tank 100, but also to drain the water out of the washing machine, and the circulating filtration and drainage share part of the pipeline structure, which simplifies the layout of the waterway structure inside the washing machine and is beneficial to Save space inside the washing machine.
  • the switching device 270 connects the circulation pipeline 220 and the drainage pipeline 210 to connect the filter device 600 and the circulation pump 400, and then starts to supply water to the water tank 100.
  • the circulation pump 400 is turned on to perform the circulation filtration operation, and after the circulation filtration operation is completed, the sewage discharge operation is performed.
  • the cyclic filtering operation and the sewage discharge operation are executed alternately until the washing/rinsing process is completed.
  • the preset number of times described in step S4 is set to 3 times. That is, in one cycle of filtration operation, the washing machine turns on the circulation pump 400 three times, turns off the circulation pump 400 for the third time, and turns on the driving mechanism 660 to drive the filter mechanism 620 to continue to rotate in the filter cavity 610 for the second preset time period.
  • the sewage control valve 241 is opened to connect the sewage pipeline 240 to perform the sewage operation.
  • FIG. 6 shows a flow chart of the washing machine in this embodiment from startup to completion of washing, including the following steps:
  • the switching device connects the circulating filter pipeline and the sewage control valve remains closed;
  • step 11 Perform step 4) to step 10) in a loop until the washing process ends and the washing and draining sequence is reached;
  • the switching device connects the circulation pump and the external discharge pipeline, the circulation pump runs, and the washing machine drains water to the outside;
  • the washing machine of this embodiment runs a rinsing phase after the washing phase.
  • the operation process of the rinsing phase is similar to the washing phase.
  • the circulating filter pipeline is connected through the switching device 270, and it is determined that the sewage control valve 241 is in a closed state, and then the After starting the rinsing water inflow, first perform the circulation filtration operation, and then perform the sewage discharge operation.
  • the cyclic filtration operation and the sewage discharge operation are executed alternately until the rinsing process ends and the rinsing and drainage sequence is reached.
  • the sewage discharge operation is first performed, and then the switching device 270 is controlled to operate to connect the circulation pump 400 and the external discharge pipeline 250.
  • the circulation pump 400 operates to drive the water in the water tank 100 to be discharged from the washing machine.
  • the washing machine alternately performs cyclic filtration operations and sewage discharge operations during the washing and rinsing processes, which can timely discharge filter impurities remaining inside the filter device 600 through the sewage discharge port 6103 to avoid accumulation of filter impurities affecting the filtration efficiency.
  • the circulation pump 400 is controlled to be turned on intermittently, and during the period when the circulation pump 400 is closed, the filter mechanism 620 is driven to rotate by the driving mechanism 660, so that filter impurities such as lint and other filtration impurities attached to the filter mechanism 620 are fully shed, and then the sewage is discharged. Fully drained during execution of the operation.
  • the filtering device 600 can perform self-cleaning at any time during the running of the washing program, thereby avoiding the clogging of the filtering device 600 and ensuring the water filtration efficiency of the washing machine.
  • the operation of the circulation pump 400 provides driving force for sewage discharge.
  • the sewage within 600 is fully discharged to avoid residual sewage carrying filtered impurities. This eliminates the trouble of adding additional driving force, avoids additional driving devices occupying space inside the washing machine, and also saves costs by reducing the use of driving devices.
  • this embodiment is a further limitation of the above-mentioned Embodiment 1.
  • the height of the water inlet 6101 of the filter device 600 is higher than the highest water level of the washing machine.
  • the washing machine performs the following steps in the last rinsing stage:
  • the circulation pump 400 When the first set condition is reached, the circulation pump 400 is turned on, and the sewage control valve 241 is opened to connect the sewage pipeline 240;
  • the driving mechanism 660 remains open and drives the filtering mechanism 620 to continue rotating.
  • connection to the circulation filtration pipeline includes: the switching device 270 conducts the water outlet end of the filtration device 600 and the circulation pump 400, and opens the return water control valve 231 to conduct the return water pipeline 230.
  • the said cutting off the circulation filtration pipeline includes: the switching device 270 conducts the discharge pipeline 250 and the water outlet end of the circulation pump 400 .
  • the washing machine performs circular filtration of the rinsing water during the rinsing process, and the filtering device 600 and the circulating filtration pipeline are always filled with rinsing water.
  • the circulation pump 400 After rinsing is completed and the circulation pump 400 is turned off, the water in the drainage pipeline 210 and the circulation pipeline 220 will flow back downwards under the action of gravity, and can flow back up to the level of the water surface in the drainage pipeline 210 and the water level in the water tank 100.
  • the pipeline between the above and the filter device 600 is filled with air.
  • the filtering device 600 is lower than the circulation pipe 220, and the water therein will not flow back through the circulation pipe 220.
  • the circulation pump 400 is closed, the return water control valve 231 is also closed, and the drain control valve 241 is in a closed state at this time.
  • the water inside the filter device 600 remains in the filter cavity 610 and will not be discharged outward.
  • the driving mechanism 660 After the driving mechanism 660 is turned on, it drives the filtering mechanism 620 to rotate at a high speed, so that the filter impurities such as lint and other particles attached to the surface are peeled off from the surface of the filtering mechanism 620 under the action of centrifugal force.
  • the filter impurities such as lint and other particles attached to the surface are peeled off from the surface of the filtering mechanism 620 under the action of centrifugal force.
  • the backwater control valve 231 and the sewage control valve 241 are both closed, the water in the filter cavity 610 does not flow out, and the high-speed rotating filter mechanism 620 can also stir the water flow in the filter cavity 610, forming a turbulent water flow.
  • a certain impact force on the surface of the filtering mechanism 620 can also cause the lint to fall off.
  • the lint scraps peeled off from the surface of the filter mechanism 620 are integrated into the water in the filter cavity 610 .
  • the sewage control valve 241 When the circulation pump 400 is turned on, the sewage control valve 241 is also opened, so that the sewage pipeline 240 is connected, and the sewage in the filter device 600 can be discharged from the sewage outlet 6103.
  • the opening of the circulation pump 400 presses the air in the drainage pipeline 210 and the circulation pipeline 220 into the filter device 600, so that the sewage carrying lint in the filter device 600 is completely discharged from the sewage outlet 6103 under the air pressure, preventing the filter device 600 from There is sewage residue in the filter, which has a good cleaning effect on the filter device 600.
  • the sewage control valve 241 is opened when the circulation pump 400 is turned on, ensuring the pressure generated when air passes into the filter device 600, thereby ensuring that the sewage in the filter device 600 is fully discharged.
  • the washing machine is preset with a second setting condition. When the second setting condition is reached, the cycle is cut off. The filter pipeline stops the water in the water tank 100 from being transported to the filter device 600.
  • the washing machine can press the water in the water tank 100 into the filtering device 600 through the circulation pump 400, thereby driving the sewage in the filtering device 600 to be discharged.
  • the circulation pump 400 is first turned off and the pipe waits. When air enters the pipeline and the circulation pump 400 is restarted, the air in the pipeline is forced into the filtering device 600, so that the sewage in the pipeline can be completely drained, effectively avoiding the growth of bacteria caused by the humid environment.
  • the first set condition may be that the circulation pump 400 is turned off for the first set time t 1
  • the second set condition may be that the circulation pump 400 is turned on for the second set time t . 2 .
  • the specific values of the first set time t 1 and the second set time t 2 can be obtained in advance through a large number of experiments and directly written into the control program of the washing machine.
  • the value of the first set time t 1 is approximately the maximum time required for the water level in the drainage pipeline 210 to begin to decrease until it stops
  • the value of the second set time t 2 is approximately the water level in the drainage pipeline 210
  • the water level height can also be used as the first setting condition and the second setting condition.
  • the first setting condition is: the water level in the pipeline between the circulation pump 400 and the filtering device 600 reaches the first setting value H 1 .
  • the second setting condition is: the water level in the pipeline between the circulation pump 400 and the filtering device 600 reaches the second setting value H 2 .
  • H 1 ⁇ H 2 H 1 ⁇ H 2 .
  • the above-mentioned water level is specifically the water level height in the drainage pipeline 210.
  • a water level detection device may be provided in the drainage pipeline 210 of the washing machine to detect the water level in the drainage pipeline 210.
  • the value of the first set value H 1 is greater than and as close as possible to the highest water level of the washing machine to ensure that after the circulation pump 400 is turned off, the water level in the drainage pipe 210 can drop to the first set value H 1 .
  • the control method of the washing machine in this embodiment can fully discharge the water in the filter device 600 before the last rinse and drainage, ensuring that there is no residual rinse water in the filter device 600 after the washing machine ends the washing process. In this way, when the washing machine is shut down, the internal environment of the filter device 600 can be ensured to be close to dry to the greatest extent, thereby reducing the problem of bacterial growth.
  • the washing machine further includes a recovery device 500 connected to the sewage pipeline 240 .
  • the water outlet end of the sewage pipeline 240 is connected to the recovery device 500.
  • the circulation pump 400 runs to drive the sewage carrying filtered impurities in the filter device 600 to be discharged into the recovery device 500 through the sewage pipeline 240.
  • the filtered impurities are mainly composed of clothing fibers that fall off when clothes are washed.
  • the shed clothing fibers contain a large amount of microplastics. When the microplastics enter the natural water environment, they will seriously harm the ecological environment and human health. .
  • the sewage carrying filtered impurities in the filtering device 600 after the sewage carrying filtered impurities in the filtering device 600 is discharged from the sewage outlet 6103, it can enter the recovery device 500 and be collected, without being merged into the drainage water and directly discharged to the washing machine.
  • the microplastics in the filtered impurities are discharged with the water flow and enter the ecological cycle, thereby causing harm to the ecological environment and human health.
  • the recycling device 500 in this implementation specifically includes:
  • Shell 510 has a recovery chamber inside
  • the filter assembly 520 is disposed in the recovery chamber and divides the recovery chamber into a first chamber 531 and a second chamber 532 .
  • the sewage pipeline 240 is connected to the first chamber 531.
  • the sewage carrying filtered impurities enters the first chamber 531, is filtered by the filter assembly 520, and then enters the second chamber 532.
  • the filtered impurities are collected in the first chamber 531.
  • a filter assembly 520 is provided in the recovery device 500 to filter the sewage discharged from the filter device 600 and separate the filtered impurities therein from the water.
  • the interior of the recovery device 500 is divided into a first chamber 531 and a second chamber 532 through the filter assembly 520.
  • the filtered impurities in the sewage are blocked by the filter assembly 520, thereby collecting the filtered impurities on the filter assembly 520 in the first chamber 531.
  • the clean water obtained after filtration is collected in the second chamber 532. Users can directly collect and process the separated filter impurities, avoiding the fact that the filter impurities are mixed in the water and cannot be effectively processed. handling situation.
  • the filter assembly 520 can be a frame horizontally arranged at a certain height in the recovery chamber and a filter screen laid on the frame. After the sewage carrying filtered impurities enters the first chamber 531, the water can enter the second chamber 532 through the filter assembly 520. The filtered impurities are blocked by the filter screen and remain on the upper surface of the filter assembly 520.
  • the housing 510 of the recovery device 500 is disposed on the box 10 so as to be insertable/extractable, and the upper side of the housing 510 has an opening.
  • the filter impurities adhering to the upper surface of the filter assembly 520 can be cleaned through the opening on the upper side of the housing 510 .
  • the filter assembly 520 is preferably detachably connected to the housing 510. The user can detach the filter assembly 520 from the inside of the housing 510 and take it out for cleaning, which makes the operation more convenient.
  • a water outlet is provided on the second chamber 532 for discharging filtered clean water.
  • the clean water entering the second chamber 532 can be discharged from the recovery device 500 in a timely manner, thus preventing the recovery device 500 from overflowing when a large amount of sewage is discharged from the filter device 600.
  • the capacity of the second chamber 532 needs to be increased, that is, the volume of the recovery device 500 needs to be increased, causing it to occupy a larger space inside the washing machine, which is not conducive to miniaturization of the overall volume of the washing machine.
  • the water in the second chamber 532 can be automatically discharged from the water outlet.
  • the user cleans the recovery device 500, he only needs to clean the filter impurities on the filter assembly 520 without manually pouring out the water in the second chamber 532. Clear water.
  • the filter assembly 520 is detachably installed in the housing 510, the user does not even need to completely remove the housing 510 from the washing machine box 10, but only needs to take out the filter assembly 520 for cleaning, which is more convenient to operate.
  • the water outlet of the second chamber 532 is connected to the water cylinder 100 , and the water collected in the second chamber 532 is transported to the water cylinder 100 .
  • the water outlet of the second chamber 532 can be connected to the return water pipeline 230, or directly connected to the water tank 100 through the pipeline.
  • the water outlet of the second chamber 532 may directly or indirectly lead to the outside of the washing machine.
  • the water outlet of the second chamber 532 is connected to the outer discharge pipe 250 through a pipeline, and the water collected in the second chamber 532 is discharged from the washing machine through the outer discharge pipe 250 .
  • the filtered impurities carried in the sewage can be collected, thereby avoiding the problem of microplastics in the filtered impurities being directly incorporated into the drainage water flow and entering the ecological cycle.
  • Cleaning particles 680 are also provided in the filter cavity 610 for filtering impurities 600, for cleaning the inner wall of the filter cavity 610 and the inner wall of the filter cavity 610 by friction and collision with the water flow.
  • the outer wall of the filtering mechanism 620 is also provided in the filter cavity 610 for filtering impurities 600, for cleaning the inner wall of the filter cavity 610 and the inner wall of the filter cavity 610 by friction and collision with the water flow.
  • the cleaning particles 680 continuously rub against the inner wall of the filter cavity 610 and the outer wall of the filter mechanism 620 with the flowing water, causing the attached filter impurities to fall off, thereby preventing the filter impurities from being deposited too quickly and the filter mechanism.
  • 620 is quickly covered by filter impurities, affecting the filtration efficiency.
  • the filter impurities are too thick and adhere too firmly to the inner wall of the filter cavity 610 or the outer wall of the filter mechanism 620.
  • the driving mechanism 660 drives the filter mechanism 620 to rotate, the attached filter impurities are difficult to remove.
  • the shape of the cleaning particles 680 includes but is not limited to spherical, ellipsoidal, elliptical cylindrical, etc. shapes.
  • the surface of the cleaning particles 680 may be a smooth surface or a non-smooth surface. It is preferred that the cleaning particles 680 have a non-smooth surface, which can increase the friction between the cleaning particles 680 and the inner wall of the filter cavity 610 and the outer wall of the filter mechanism 620, and achieve a better effect of peeling off filtered impurities.
  • the material of the cleaning particles 680 is preferably a wear-resistant elastic material to prevent the cleaning particles 680 from being easily worn during use.
  • the resilience of the cleaning particles 680 is preferably 0% to 50%.
  • the cleaning particles 680 are made of elastic materials that are easily deformed when subjected to force, which can prevent the cleaning particles 680 from getting stuck during the rotation of the filter mechanism 620 and even causing the filter device to be blocked. 600 damage.
  • a blocking mechanism is also provided in the filter cavity 610.
  • the blocking mechanism divides the interior of the filter cavity 610 into a first space and a second space.
  • the water inlet 6101 is connected to the first space, and the filtered water outlet is 6102 and the sewage outlet 6103 are connected to the second space, and the cleaning particles 680 are provided in the first space.
  • the blocking mechanism divides the interior of the filter cavity 610 into a first space on the left and a second space on the right, and the main body of the filter mechanism 620 is located in the first space.
  • the cleaning particles 680 are between the filter cavity 610 and the filter mechanism 620 in the first space, and the flowing water continuously rubs the inner wall of the filter cavity 610 and the outer wall of the filter mechanism 620, causing the attached filter impurities to fall off.
  • the cleaning particles 680 move in the filter cavity 610 with the action of the turbulent water flow, and rub against the inner wall of the filter cavity 610 and the outer wall of the filter mechanism 620, which can improve the stripping efficiency of filtered impurities.
  • the water flow can be discharged from the sewage outlet 6103 through the blocking mechanism.
  • the cleaning particles 680 are blocked by the blocking mechanism and stay in the first space on the left side, preventing the cleaning particles 680 from being discharged with the water flow through the sewage outlet 6103, or The sewage outlet is blocked, affecting the efficiency of sewage discharge.
  • the blocking mechanism includes a baffle 690 disposed inside the filter cavity 610, and the first space and the second space are respectively formed on the left and right sides of the baffle 690.
  • the water inlet 6101 and the cleaning particles 680 are located on the left side of the baffle 690
  • the filtered water outlet 6102 and the sewage outlet 6103 are located on the right side of the baffle 690 .
  • a plurality of water holes 691 are provided on the baffle 690. The water holes 691 connect the first space and the second space, but the cleaning particles 680 are restricted in the first space by the baffle 690 and will not enter the second space.
  • the outer periphery of the baffle 690 is in close contact with the inner wall of the filter cavity 610, the width of the water hole 691 is D 1 , the width of the cleaning particles 680 is d, and D 1 ⁇ d.
  • the water hole 691 in this embodiment is a circular hole, and the width D 1 of the water hole 691 is the diameter of the water hole 691 . It can be understood that the water hole 691 can also be arranged in other shapes, such as square holes, strip holes, etc., in which case the minimum size of the water hole 691 in different directions is the width D 1 .
  • the width d of the cleaning particles 680 is the diameter of the cleaning particles 680 .
  • the width d is the diameter of the cleaning particles 680 .
  • the density of the cleaning particles 680 is smaller than that of water.
  • the cleaning particles 680 can float in the water, making it easier to be driven by the water flow in the first space of the filter cavity 610. Movement, resulting in friction and collision, accelerating the uniform dissolution of the clothing treatment agent, or causing the filtered impurities to fall off. This avoids the situation where the cleaning particles 680 are deposited at the bottom of the filter cavity 610 and cannot play an effective role when the impact force of the water flow is insufficient.
  • the filtering mechanism 620 includes a water outlet joint 621 extending along the rotation axis toward the filtered water outlet 6102.
  • One end of the water outlet joint 621 is connected to the main body of the filtering mechanism 620 and is located on the left side of the baffle 690. The other end passes through the baffle 690 and is rotatably inserted into the filtered water outlet 6102.
  • the baffle 690 is provided with a through hole for the water outlet connector 621 to pass through, and the through hole fits with the outer wall of the water outlet connector 621 with a clearance.
  • the filtered water inside the filtering mechanism 620 flows out through the water outlet joint 621.
  • the outer wall of the water outlet joint 621 does not contact the inner wall of the through hole on the baffle 690, preventing the interaction between the baffle 690 and the water outlet joint 621 when the filtering mechanism 620 rotates. There is friction between them to generate resistance, which affects the smooth rotation of the filter mechanism 620.
  • cleaning particles 680 are provided in the filter cavity 610.
  • the cleaning particles 680 can rub against the inside of the filter cavity 610 and the outer wall of the filter mechanism 620 to prevent excessive deposition of filter impurities and improve the peeling off of filter impurities when the filter mechanism 620 rotates. efficiency, thereby improving the self-cleaning effect of the filter device 600.
  • this embodiment is a further limitation of the filter device 600 (the baffle is not shown in the figure) in the above embodiment.
  • the outer circumference of the filtered water outlet 6102 extends to the outside of the filter cavity 610 to form a seal.
  • the water outlet joint 621 of the filter mechanism 620 is inserted into the seal support part 611, and is rotatably and sealingly connected with the seal support part 611.
  • the first bearing 631 is set on the water outlet joint 621.
  • a first seal 641 is provided on the side of the first bearing 631 facing the inside of the filter cavity 610. The first seal 641 blocks the water outlet joint 621 and the seal support part 611. the gap between.
  • a first bearing 631 is provided between the water outlet joint 621 and the sealing support part 611 to support the water outlet joint 621, so that the water outlet joint 621 rotates more smoothly in the sealing support part 611, and at the same time, the structure is stable, which can ensure filtration.
  • the mechanism 620 rotates stably in the filter cavity 610.
  • a first seal 641 is provided on the right side of the first bearing 631 so that the washing water in the filter cavity 610 cannot enter the gap between the water outlet joint 621 and the seal support part 611, thus preventing the first bearing 631 from contacting water and avoiding The failure of the first bearing 631 ensures the effect of the first bearing 631 .
  • the first seal 641 also prevents unfiltered wash water from flowing out from the filtered water outlet 6102 through the seal support part 611, affecting the removal efficiency of filtered impurities by the filter device 600.
  • the first sealing member 641 is sleeved on the water outlet connector 621, the inner wall of the first sealing member 641 is sealingly connected to the outer wall of the water outlet connector 621, and the outer wall of the first sealing member 641 is connected to the sealing support portion 611. Sealed connection with rotatable inner wall.
  • the filter device 600 also includes a second seal 642.
  • the second seal 642 is disposed on the side of the first bearing 631 facing away from the inside of the filter cavity 610, blocking the water outlet joint 621 and the seal support part. The gap between 611.
  • the second sealing member 642 is sleeved on the water outlet joint 621, the inner wall of the second sealing member 642 is sealingly connected to the outer wall of the water outlet joint 621, and the outer wall of the second sealing member 642 is rotatably sealed with the inner wall of the seal support part 611. connect.
  • a second seal 642 is also provided on the left side of the first bearing 631.
  • the water flowing out through the water outlet joint 621 can be blocked by the second seal 642 and will not contact the first bearing 631.
  • the first bearing 631 is located between the first seal 641 and the second seal 642, which ensures that the installation environment of the first bearing 631 is water-free to the greatest extent, preventing the first bearing 631 from rusting when exposed to water and affecting the rotation of the filter mechanism 620. of smoothness.
  • the inner wall of the sealing support part 611 has a stepped structure. From one end of the sealing support part 611 to the outside of the filter cavity 610, a first limiting surface 601 and a second limiting surface 601 with an annular structure and gradually decreasing inner diameters are formed. The limiting surface 602 and the third limiting surface 603.
  • the surface of the first seal 641 facing the outside of the filter cavity 610 is in contact with the first limiting surface 601 .
  • the surface of the first bearing 631 facing the outside of the filter cavity 610 is in contact with the second limiting surface 602 .
  • the second seal 642 The surface facing the outside of the filter cavity 610 is in contact with the third limiting surface 603 .
  • a plurality of vertical annular limiting surfaces are formed by the inner wall of the seal support portion 611 with a stepped structure, respectively abutting the left surfaces of the first seal 641, the first bearing 631 and the second seal 642. , can limit the movement of the above three in the axial direction of the water outlet joint 621, and prevent the matching structure between the water outlet joint 621 and the sealing support part 611 from loosening during the rotation of the filter mechanism 620.
  • the outer diameter of one end of the water outlet joint 621 close to the outside of the filter cavity 610 is smaller than the outer diameter of the other end.
  • An annular structure is formed on the outer wall of the water outlet joint 621 and is perpendicular to the axis of the water outlet joint 621 The fourth limiting surface 604. The surface of the first bearing 631 facing the inside of the filter cavity 610 is in contact with the fourth limiting surface 604 .
  • a fourth limiting surface 604 toward the left is formed at the sudden change in the outer diameter, and is in contact with the right surface of the first bearing 631 .
  • both sides of the first bearing 631 have limiting structures, making the structure more stable.
  • one end of the sealing support portion 611 away from the filter cavity 610 is connected to the filter cavity flange 650 .
  • the filter cavity flange 650 has a through-hole 653 in the middle that communicates with the water outlet joint 621 .
  • the outer periphery of the through opening 653 extends away from the seal support portion 611 to form a connecting portion 651 .
  • the surface of the filter chamber flange 650 facing the sealing support part 611 has a raised plug-in part 652, and the plug-in part 652 is inserted into the opening at the left end of the sealing support part 611.
  • the left end of the sealing support part 611 is connected to the filter chamber flange 650, and a connection part 651 is formed on the filter cavity flange 650.
  • the outer diameter of the connection part 651 is smaller than the outer diameter of the seal support part 611, and the inner diameter of the connection part 651 is It is preferably equal to the inner diameter of the water outlet joint 621.
  • the right side of the filter chamber flange 650 has an insertion portion 652 inserted into the left end opening of the seal support portion 611 to facilitate positioning when the filter chamber flange 650 and the seal support portion 611 are assembled.
  • a number of fixing parts are respectively provided on the outer periphery of the filter chamber flange 650 and the seal support part 611, and screws are passed through the fixing parts to realize the fixation of the filter chamber flange 650 and the seal support part 611.
  • the outer wall of the sealing support part 611 is provided with reinforcing ribs 613 extending in the radial direction of the sealing support part 611 , and the reinforcing ribs 613 are connected to the surface of the filter cavity 610 where the filtered water outlet 6102 is located.
  • the sealing support part 611 extends to a certain length from the left end surface of the filter cavity 610, the reinforcing ribs 613 are provided to support its peripheral side wall from the outside, ensuring the strength of the sealing support part 611.
  • the filtering mechanism 620 includes a filter holder and a filter 625.
  • the filter holder specifically includes:
  • the filter support part 623 is located inside the filter cavity 610.
  • the filter screen 625 covers the surface of the filter support part 623.
  • the filter support part 623 and the filter screen 625 together constitute the main part of the filter mechanism 620;
  • the water outlet joint 621 is provided at the left end of the filter support part 623, and is rotatably inserted into the seal support part 611;
  • the rotation support part 622 is provided at the right end of the filter support part 623 and is rotatably connected to the filter cavity 610 .
  • the rotation support portion 622 at the right end of the filter mechanism 620 extends along its rotation axis toward the outside of the filter cavity 610.
  • the filter cavity 610 is provided with an installation opening 6104 for the rotation support portion 622 to pass through.
  • the rotation support part 622 is rotatably and sealingly connected to the installation opening 6104.
  • the rotating support part 622 is used to connect the driving mechanism that drives the filter mechanism 620 to rotate.
  • the rotating supporting part 622 extends from the right end of the filter cavity 610, and a motor mounting part 624 is provided at the right end of the rotating supporting part 622 for connecting with the driving mechanism. Therefore, the driving mechanism can be arranged outside the filter cavity 610 to avoid contact with water.
  • the outer periphery of the installation opening 6104 extends along the axis of the rotation support portion 622 toward the outside of the filter cavity 610 to form a sleeve. part 612, and a third seal 643 is set on the rotation support part 622.
  • the inner wall of the third sealing member 643 is sealingly connected to the outer wall of the rotation support part 622
  • the outer wall of the third sealing member 643 is rotatably sealingly connected to the inner wall of the sleeve part 612 .
  • a second bearing 632 is also provided between the sleeve part 612 and the rotation support part 622.
  • the second bearing 632 is sleeved on the rotation support part 622 and is located on the side of the third seal 643 facing the outside of the filter cavity 610.
  • the arrangement of the third seal 643 prevents the water in the filter cavity 610 from leaking from the installation port 6104, and the arrangement of the second bearing 632 can support the rotation support part 622 to ensure that the rotation support part 622 is in contact with the sleeve.
  • the relative rotation of the barrel portion 612 is smoother.
  • the second bearing 632 is disposed on the right side of the third seal 643 and is not in contact with the water in the filter cavity 610 to avoid failure.
  • the inner diameter of one end of the sleeve portion 612 close to the outside of the filter cavity 610 is smaller than the inner diameter of the other end.
  • An annular structure is formed on the inner wall of the sleeve portion 612 and is perpendicular to the axis of the rotation support portion 622 The fifth limiting surface 605.
  • the surface of the third sealing member 643 facing the outside of the filter cavity 610 is in contact with the fifth limiting surface 605 .
  • the outer diameter of one end of the rotating support part 622 close to the outside of the filter cavity 610 is smaller than the outer diameter of the other end.
  • a sixth limiting surface with an annular structure and perpendicular to the axis of the rotating supporting part 622 is formed on the outer wall of the rotating supporting part 622 606.
  • the surface of the second bearing 632 facing the inside of the filter cavity 610 is in contact with the sixth limiting surface 606 .
  • the inner diameter of the right end of the sleeve portion 612 is smaller than the inner diameter of the left end, and a fifth limiting surface 605 toward the left is formed at a sudden change in the inner diameter to contact the right surface of the third seal 643 .
  • the outer diameter of the right end of the rotation support portion 622 is smaller than the outer diameter of the left end, and a sudden change in the outer diameter forms a sixth limiting surface 606 toward the right, which contacts the left surface of the second bearing 632 .
  • the above structure limits the movement of the third seal 643 and the second bearing 632 in the axial direction of the rotation support part 622, and the structure is stable.
  • the cross-sectional area of the middle region of the filter support portion 623 is constant, and its left and right ends have tapered structures, so that the partial surface of the filter 625 is tilted, which is beneficial to the shedding of attached filter impurities.
  • first bearings 631 and second bearings 632 are respectively provided at both ends of the filtering mechanism 620 for support, ensuring that the filtering mechanism 620 rotates smoothly and stably in the filtering cavity 610 .
  • the installation environment of the first bearing 631 and the second bearing 632 is guaranteed to be water-free to the greatest extent, preventing the first bearing 631 and the second bearing from being installed in a water-free environment.
  • the second bearing 632 is in contact with water to avoid failure of both.

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Abstract

一种洗衣机的控制方法及洗衣机，洗衣机包括：盛水筒（100）；循环过滤管路（220），其进水端和出水端分别与盛水筒（100）连通，其上设置循环泵（400）；过滤装置（600），设置在循环泵（400）与循环过滤管路（220）的出水端之间，具有向外排出污水的排污口；排污管路（240），与过滤装置的排污口（6103）连接；洗衣机在洗涤/漂洗过程中交替执行：循环过滤操作，关闭过滤装置的排污口（6103）和/或切断排污管路（240），循环泵（400）运行，对盛水筒（100）中的水进行循环过滤；以及排污操作，开启过滤装置（600）的排污口（6103）和/或导通排污管路（240），循环泵（400）运行，驱动过滤装置（600）中的污水排入排污管路（240）。该洗衣机交替执行循环过滤操作和排污操作，并通过循环泵（400）为过滤装置（600）提供污水排出的动力，可将过滤装置（600）中的过滤杂质及时且充分地排出。

Description

一种洗衣机的控制方法及洗衣机 技术领域
本发明属于洗衣设备领域，具体地说，涉及一种洗衣机的控制方法及洗衣机。
背景技术
洗衣机对衣物进行洗涤的过程中，由于衣物与衣物之间，以及衣物与洗衣机本身存在摩擦，会造成衣物产生线屑脱落并混入洗涤水中。洗涤水中的线屑若不能除去，很可能在洗衣完成后附着在衣物表面，影响衣物的洗净效果。为此，现有的洗衣机上安装用于过滤线屑的过滤器，在洗衣过程中使洗涤水不断通过过滤器，将线屑从洗涤水中除去。
现有洗衣机的过滤器一般设置在内桶或者排水泵内部，用于过滤洗涤水中的线屑及杂物。然而洗衣机经长时间使用后，过滤器内会填满线屑及杂物，影响过滤器的过滤效果，造成排水阀/排水泵的堵塞，且极易滋生细菌，需要及时对其进行清理，否则会造成洗涤水的污染，对衣物造成二次污染，影响用户的健康。但大多数洗衣机需要用户将过滤器取下手动清理，操作不便。
为此，现有技术中提出了具有自清洗功能的过滤装置，可以在完成过滤过程后自动清洗内部附着的线屑等过滤杂质，并将清理下来的过滤杂质通过水流排出。然而，受到洗衣机内部空间的限制，过滤装置向外排出污水的排污路径较长，且可能存在一定高度差，使得过滤装置内的污水在不借助驱动力的情况下很难充分排出，导致过滤杂质在过滤装置中的不断累积，长期使用仍然存在细菌滋生的问题。
另一方面，大多数洗衣机在洗涤或漂洗阶段结束后，甚至洗衣机运行一次完整的洗衣程序之后才进行一次过滤装置的清洗及污水排出，当水中线屑含量较大时，过滤杂质可能覆盖过滤装置中的滤网，影响过滤杂质的过滤效率。严重时还可能造成过滤装置被过滤杂质堵塞，导致循环过滤无法继续进行，影响用户体验。
有鉴于此，特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足，提供一种利用循环泵驱动过滤装置排出污水、且在洗涤/漂洗过程中过滤装置可多次排出污水的洗衣机的控制方法及洗衣机。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种洗衣机的控制方法，所述洗衣机包括：
盛水筒；
循环过滤管路，其进水端和出水端分别与盛水筒连通，其上设置循环泵；
过滤装置，设置在循环泵与循环过滤管路的出水端之间，具有向外排出污水的排污口；
排污管路，与过滤装置的排污口连接；
所述洗衣机在洗涤/漂洗过程中交替执行：
循环过滤操作，关闭过滤装置的排污口和/或切断排污管路，循环泵运行，对盛水筒中的水进行循环过滤；
以及排污操作，开启过滤装置的排污口和/或导通排污管路，循环泵运行，驱动过滤装置 中的污水排入排污管路。
进一步地，所述排污操作中，循环泵持续运行一定时长，再执行循环过滤操作。
进一步地，所述过滤装置包括：
过滤腔体，其上设置入水口、过滤水出口及排污口，所述入水口与过滤水出口分别连接在循环过滤管路上；
过滤机构，可转动的设置在过滤腔体内；
驱动机构，用于驱动所述过滤机构在过滤腔体内转动；
所述排污操作还包括：循环泵运行期间，开启驱动机构，带动过滤机构在过滤腔体内转动。
进一步地，所述循环过滤操作包括如下步骤：
S1、关闭过滤装置的排污口和/或切断排污管路；
S2、开启循环泵并持续运行一定时长；
S3、关闭循环泵并持续一定时长；
S4、若本次循环过滤操作中执行步骤S2的次数达到预设次数，则结束循环过滤操作，否则返回至步骤S2；
优选地，步骤S2中，循环泵持续运行第三预设时长T3；步骤S3中，关闭循环泵并持续第二预设时长T2；其中，所述第三预设时长T3大于第二预设时长T2。
进一步地，所述过滤装置包括：
过滤腔体，其上设置入水口、过滤水出口及排污口，所述入水口与过滤水出口分别连接在循环过滤管路上；
过滤机构，可转动的设置在过滤腔体内；
驱动机构，用于驱动所述过滤机构在过滤腔体内转动；
步骤S3还包括：循环泵关闭期间，开启驱动机构，带动过滤机构在过滤腔体内转动。
进一步地，所述排污操作中，在循环泵运行期间开启驱动机构，带动过滤机构在过滤腔体内持续转动第一预设时长T1；
步骤S3中，驱动机构带动过滤机构在过滤腔体内持续转动第二预设时长T2；所述第二预设时长T2小于第一预设时长T1。
进一步地，所述洗衣机还包括用于向外部排水的外排管路，所述外排管路的进水端连接在循环过滤管路上循环泵与过滤装置之间；所述过滤装置和外排管路择一与循环泵导通；
洗涤/漂洗过程中，所述过滤装置与循环泵导通；
洗涤/漂洗过程结束后，洗衣机执行排污操作，排污操作完成后，导通循环泵与外排管路，循环泵运行，驱动盛水筒中的水经外排管路排出洗衣机。
进一步地，洗涤/漂洗进水前，导通循环泵与过滤装置；开始向盛水筒进水，执行循环过滤操作，循环过滤操作结束后执行排污操作；所述循环过滤操作与排污操作交替执行，直至洗涤/漂洗过程结束。
本发明的另一目的是提供一种洗衣机，采用上述所述的洗衣机的控制方法。
进一步地，还包括与所述排污管路连通的回收装置，所述排污操作中，循环泵运行，驱 动过滤装置中的污水经排污管路排入所述回收装置。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果。
本发明中，洗衣机的循环过滤需要通过循环泵实现，循环泵同时还可用于为过滤装置中的污水排出提供驱动力，无需添加额外的动力，就可以保证在排污操作中，过滤装置内携带过滤杂质的污水能够充分排出，减少了过滤杂质的残留。同时，洗衣机在洗涤/漂洗过程中交替执行循环过滤操作和排污操作，可以及时将执行循环过滤操作的过程中残留在过滤装置内部的过滤杂质及时排出，避免了过滤杂质在过滤装置内部堆积影响过滤效率。
本发明中，在排污操作中控制过滤装置的过滤机构持续转动，使附着在过滤机构表面的过滤杂质受离心力作用而被剥离，同时配合循环泵运行所提供的驱动力，可以提高过滤装置内部过滤杂质的清理效率。
本发明中，排污管路的末端连通回收装置，可接收过滤装置排出的污水，防止污水中携带的线屑等过滤杂质直接排出洗衣机，进而避免了过滤杂质中的微塑料随排水水流进入生态循环，对生态环境和人体健康造成影响。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附图仅仅是一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。在附图中：
图1是本发明实施例中洗衣机的结构示意图(循环过滤过程)；
图2是本发明图1中A处的放大示意图；
图3是本发明实施例中洗衣机的结构示意图(排污过程)；
图4是本发明实施例中洗衣机的结构示意图(排水过程)；
图5是本发明图4中B处的放大示意图；
图6是本发明实施例一中洗衣机的控制方法流程图；
图7是本发明实施例五中过滤装置的结构示意图；
图8是本发明图7中C-C截面的示意图。
图中：10、箱体；100、盛水筒；110、窗垫；210、排水管路；220、循环管路；230、回水管路；231、回水控制阀；240、排污管路；241、排污控制阀；250、外排管路；260、盛水筒排水管；270、切换装置；400、循环泵；500、回收装置；510、壳体；520、过滤组件；531、第一腔室；532、第二腔室；
600、过滤装置；601、第一限位面；602、第二限位面；603、第三限位面；604、第四限
位面；605、第五限位面；606、第六限位面；610、过滤腔体；6101、入水口；6102、过滤水出口；6103、排污口；6104、安装口；611、密封支撑部；612、套筒部；613、加强筋；620、过滤机构；621、出水接头；622、转动支撑部；623、过滤网支撑部；624、电机安装部；625、过滤网；631、第一轴承；632、第二轴承；641、第一密封件；642、第二密封件；643、第三密封件；650、过滤腔法兰；651、连接部；652、插接部；653、贯通口；660、驱动机构；680、清洗颗粒；690、挡板；691、过水孔。
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对实施例中的技术方案进行清楚、完整地描述，以下实施例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
实施例一
如图1至图5所示，本实施例所述的洗衣机包括：
盛水筒100；
循环过滤管路，其进水端和出水端分别与盛水筒100连通，其上设置循环泵400；
过滤装置600，设置在循环泵400与循环过滤管路的出水端之间，具有入水口6101、过滤水出口6102及排污口6103，其中，入水口6101和过滤水出口6102接入循环过滤管路，排污口6103用于向外排出污水；
排污管路240，与过滤装置600的排污口6103连接，用于接收排污口6103排出的污水。
具体地，过滤装置600包括：
过滤腔体610，其上设置入水口6101、过滤水出口6102及排污口6103；
过滤机构620，可转动的设置在过滤腔体610内；
驱动机构660，用于驱动过滤机构620在过滤腔体610内转动。
其中，过滤机构620将过滤腔体610内部分隔为外容腔与内容腔，入水口6101与所述外容腔连通，过滤水出口6102与内容腔连通。盛水筒100中的水经入水口6101进入外容腔中，通过过滤机构620进入内容腔实现过滤，并从过滤水出口6102流出，水中携带的线屑等过滤杂质附着在过滤机构620的外壁上。
本实施例所述的循环过滤管路具体包括：
盛水筒排水管260，连接盛水筒100与循环泵400的进水端；
排水管路210，一端与循环泵400的出水端连接；
循环管路220，一端与排水管路210连通，另一端连接至过滤装置600的入水口6101；
回水管路230，一端与过滤装置600的过滤水出口6102连接，另一端与盛水筒100连通，将过滤后的水输送至盛水筒100中。
本实施例中，回水管路230具体连接在盛水筒100筒口处的窗垫110上。
本实施例的洗衣机还包括用于向洗衣机外部排水的外排管路250，外排管路250的进水 端连接在循环过滤管路上循环泵400与过滤装置600之间，且过滤装置600和外排管路250择一与循环泵400导通。
具体地，排水管路210与循环管路220之间通过一切换装置270连接，切换装置270包括：
进水口，与循环泵400的出水端连通；
第一出水口，与过滤装置600连通；
第二出水口，与外排管路250连通；
切换机构，控制第一出水口和第二出水口择一与所述进水口导通。
通过控制切换机构动作，即可实现对过滤装置600和外排管路250择一与循环泵400导通的控制。
本实施例中，排污管路240上设置有可打开/关闭的排污控制阀241，优选在回水管路230上还设置回水控制阀231。
切换装置270导通过滤装置600和循环泵400时，打开回水控制阀231，使回水管路230导通，同时关闭排污控制阀241，盛水筒100中的水即可通入过滤装置600进行过滤，并在过滤后经回水管路230回到盛水筒100中。打开排污控制阀241，同时关闭回水控制阀231，过滤装置600中的污水即可经排污口6103排入排污管路240中。
本实施例中，所述的洗衣机在洗涤/漂洗过程中交替执行循环过滤操作和排污操作。
其中，所述循环过滤操作包括：关闭排污控制阀241以切断排污管路240，循环泵400运行，对盛水筒100中的水进行循环过滤。
所述排污操作包括：打开排污控制阀241以导通排污管路240，循环泵400运行，驱动过滤装置600中的污水排入排污管路240。
在上述方案中，通过在洗衣机的洗涤/漂洗阶段交替执行循环过滤操作和排污操作，可以将循环过滤过程中残留在过滤装置600内部的线屑等过滤杂质及时排出，避免了过滤杂质在过滤装置600内部堆积，对过滤效率产生影响。尤其是水中线屑等过滤杂质含量较高时，本实施例的方案与持续执行循环过滤操作直至洗涤/漂洗结束的方式相比，有效防止了堆积的过滤杂质过多，造成过滤装置600堵塞的情况。
同时，通过循环泵400的运行为过滤装置600中污水的排出提供驱动力，能够使过滤装置600内的污水充分排出，避免了排污管路240的出水端高于排污口6103时，污水在过滤装置600中大量留存的问题，从而减少了过滤杂质在过滤装置600中的残留。由于洗衣机的循环过滤功能需要通过循环泵400实现，本实施例的方案中同时利用循环泵400为过滤装置600排出污水提供驱动力，无需添加额外的动力，从而节省了为设置额外的驱动装置所需要占用的空间，还能够节省生产成本。
本实施例的另一种方案中，还可以在过滤装置的排污口处设置可打开/关闭的排污阀，而排污管路上不再设置排污控制阀。此时，在循环过滤操作中，可通过关闭所述排污阀以关闭过滤装置的排污口，使通入过滤装置中的水回流至盛水筒中；在排污操作中，可通过打开所述排污阀以开启过滤装置的排污口，使过滤装置中的污水可排入排污管道中。
本实施例的进一步方案中，所述排污操作中，循环泵400持续运行第一预设时长T1，再执行循环过滤操作。
进一步地，所述排污操作还包括：循环泵400运行期间，开启驱动机构660，带动过滤机构620在过滤腔体610内持续转动第一预设时长T1。
在上述方案中，洗衣机执行排污操作时，循环泵400和驱动机构660同时保持开启状态，通过控制过滤机构620在过滤腔体610中高速转动，可以将附着在过滤机构620表面的过滤杂质通过离心力甩到过滤腔体610的内壁上，进而融入过滤腔体610内的水流中，随水流经排污口6103排出。如此避免了过滤杂质过于牢固地粘附在过滤机构620上，无法充分排出的问题。
本实施例的进一步方案中，洗衣机在执行循环过滤操作的过程中，控制循环泵400间歇开启。具体地，所述循环过滤操作包括：
S1、关闭排污控制阀241以切断排污管路240；
S2、开启循环泵400并持续运行一定时长；
S3、关闭循环泵400并持续一定时长；
S4、若本次循环过滤操作中执行步骤S2的次数达到预设次数，则结束循环过滤操作，否则返回至步骤S2。
在上述方案中，通过循环泵400的间歇性开启，在循环泵400关闭期间，盛水筒100中的水暂停通过过滤装置600，附着在过滤机构620表面的过滤杂质可以在该期间脱落融入水中，进而在执行排污操作时随水流排出。如此避免了水流通过过滤装置600进行过滤的持续时间过长，导致过滤杂质过于牢固地附着在过滤装置600内部，在执行排污操作时即使通过转动过滤机构620也无法充分排出的情况。
可以理解的是，提高循环过滤操作和排污操作交替执行的频率，也可以达到避免过滤杂质附着过于牢固的目的。但交替执行循环过滤操作和排污操作需要排污控制阀241频繁地打开或关闭，对于排污控制阀241而言，状态切换过于频繁可能导致使用寿命的缩短。
进一步地，步骤S3还包括：循环泵400关闭期间，开启驱动机构660，带动过滤机构620在过滤腔体610内转动。
在循环泵400关闭期间，过滤机构620的转动可搅动过滤腔体610内的水流，使过滤机构620外壁附着的过滤杂质在离心力及激荡水流的双重作用下剥离，融入过滤腔体610内水中，有助于过滤机构620外壁上附着的过滤杂质充分脱落。
进一步地，在以上步骤S2中，循环泵400持续运行第三预设时长T3。步骤S3中，关闭循环泵400并持续第二预设时长T2，也即驱动机构660带动过滤机构620在过滤腔体610内持续转动第二预设时长T2。其中，所述第三预设时长T3大于第二预设时长T2。
在上述方案中，过滤机构620包括过滤网，通过过滤网上的网孔实现过滤功能。所述第二预设时长T2和第三预设时长T3的具体取值可以预先通过大量实验得出并直接写入洗衣机的控制程序中。其中，第三预设时长T3具体为过滤装置600持续进行过滤时，过滤网上的网孔大部分被过滤杂质覆盖所经历的时长；第二预设时长T2的具体取值以保证附着在过滤机构620上的过滤杂质可以充分脱落为准。
所述的第三预设时长T3大于第二预设时长T2，在保证过滤机构620不被过滤杂质堵塞的前提下，可以使盛水筒100中的水在洗涤/漂洗的过程中得到充分的过滤，有利于改善洗衣效果。
需要说明的是，当过滤装置的排污口处设置排污阀，而排污管路上不设置排污控制阀时，所述的循环过滤操作则包括以下步骤：
S1’、关闭所述排污阀以关闭过滤装置的排污口；
S2’、开启循环泵并持续运行一定时长；
S3’、关闭循环泵并持续一定时长；
S4’、若本次循环过滤操作中执行步骤S2’的次数达到预设次数，则结束循环过滤操作，否则返回至步骤S2’。
本实施例的进一步方案中，循环过滤操作中，步骤S3中过滤机构620在过滤腔体610内持续转动第二预设时长T2。排污操作中，过滤机构620在过滤腔体610内持续转动第一预设时长T1。所述的第二预设时长T2小于第一预设时长T1。
在上述方案中，循环过滤操作中过滤机构620每次的转动用于避免过滤杂质附着过于牢固，排污操作中过滤机构620的转动需要确保附着的过滤杂质充分脱落。排污操作中过滤机构620的持续转动时间更长，有利于保证执行下一次循环过滤操作时，过滤机构620表面几乎没有附着的过滤杂质。
本实施例的进一步方案中，在洗涤/漂洗过程中，通过切换装置270导通循环管路220与排水管路210，使过滤装置600与循环泵400导通，从而交替执行循环过滤操作与排污操作。而在洗涤/漂洗过程结束，也即达到相应的排水时序时，洗衣机先执行排污操作，即打开排污控制阀241，开启驱动机构660带动过滤机构620转动，同时循环泵400运行驱动过滤装置600内的污水排入排污管路240。排污操作完成后，切换装置270动作导通排水管路210与外排管路250，也即使循环泵400与外排管路250导通，循环泵400运行，驱动盛水筒100中的水经外排管路250排出洗衣机。
在上述方案中，循环泵400既用于盛水筒100中水的循环过滤，又用于洗衣机向外排水，且循环过滤与排水共用部分管路结构，简化了洗衣机内部的水路结构布置，有利于节省洗衣机内部的空间。
本实施例的进一步方案中，洗涤/漂洗进水前，切换装置270导通循环管路220与排水管路210，使过滤装置600与循环泵400导通，然后开始向盛水筒100进水，并在盛水筒100中水位大于预设水位后，开启循环泵400执行循环过滤操作，循环过滤操作结束后执行排污操作。所述循环过滤操作与排污操作交替执行，直至洗涤/漂洗过程结束。
本实施例的循环过滤操作中，步骤S4中所述的预设次数设置为3次。也即，洗衣机在一次循环过滤操作中，先后开启三次循环泵400，在循环泵400第三次关闭，并开启驱动机构660带动过滤机构620在过滤腔体610内持续转动达第二预设时长T2后，打开排污控制阀241以导通排污管路240，执行排污操作。
如图6所示为本实施例的洗衣机从开机至完成洗涤阶段的流程图，包括如下步骤：
1)洗衣机开机；
2)切换装置导通循环过滤管路，排污控制阀保持关闭；
3)开始洗涤进水；
4)开启循环泵并持续第三预设时长T3；
5)关闭循环泵，开启驱动机构并持续第二预设时长T2；
6)关闭驱动机构，开启循环泵并持续三预设时长T3；
7)关闭循环泵，开启驱动机构并持续第二预设时长T2；
8)关闭驱动机构，开启循环泵并持续三预设时长T3；
9)关闭循环泵，开启驱动机构并持续第二预设时长T2；
10)打开排污控制阀，同时开启循环泵和驱动机构并持续第一预设时长T1，关闭排污控制阀；
11)循环执行步骤4)至步骤10)，直至洗涤过程结束，达到洗涤排水时序；
12)打开排污控制阀，同时开启循环泵和驱动机构并持续第一预设时长T1，关闭排污控制阀；
13)切换装置导通循环泵与外排管路，循环泵运行，洗衣机向外排水；
14)排水完成，洗涤阶段结束。
本实施例的洗衣机在洗涤阶段结束后运行漂洗阶段，所述漂洗阶段的运行过程与洗涤阶段类似，先通过切换装置270导通循环过滤管路，并确定排污控制阀241处于关闭状态，然后在开始漂洗进水后，先执行循环过滤操作，然后执行排污操作。所述循环过滤操作与排污操作交替执行直至漂洗过程结束，达到漂洗排水时序。此时先执行排污操作，然后控制切换装置270动作导通循环泵400与外排管路250，循环泵400运行驱动盛水筒100中的水排出洗衣机。
本实施例中，洗衣机在洗涤及漂洗过程中交替执行循环过滤操作和排污操作，可以将残留在过滤装置600内部的过滤杂质及时经排污口6103排出，避免过滤杂质堆积影响过滤效率。执行循环过滤操作的过程中，控制循环泵400间歇开启，且在循环泵400关闭期间通过驱动机构660驱动过滤机构620转动，使过滤机构620上附着的线屑等过滤杂质充分脱落，进而在排污操作的执行过程中充分排出。通过上述过程，过滤装置600可在洗衣程序运行期间随时进行自清理，避免了过滤装置600发生堵塞的情况，保证了洗衣机对水的过滤效率。
洗衣机执行排污操作时，通过循环泵400的运行为污水排出提供驱动力，无需为过滤装置600排出污水的操作添加额外驱动力，就可以保证无论排污管路240的走向如何，都能够使过滤装置600内的污水充分排出，避免携带过滤杂质的污水残留。由于省去了额外添加驱动力的麻烦，避免了额外的驱动装置在洗衣机内部占用空间，还通过减少了驱动装置的使用节省了成本。
实施例二
如图1至图5所示，本实施例为上述实施例一的进一步限定，所述过滤装置600的入水口6101所在高度高于洗衣机的最高水位高度，洗衣机在最后一次漂洗阶段执行以下步骤：
开启循环泵400，导通循环过滤管路，洗衣机进行循环过滤漂洗；
漂洗结束，关闭循环泵400；
开启驱动机构660，带动过滤机构620在过滤腔体610内转动；
达到第一设定条件，开启循环泵400，同时打开排污控制阀241导通排污管路240；
达到第二设定条件，切断循环过滤管路。
优选地，达到第一设定条件后，驱动机构660保持开启状态，带动过滤机构620持续转动。
本实施例中，所述的导通循环过滤管路包括：切换装置270导通过滤装置600和循环泵400的出水端，打开回水控制阀231导通回水管路230。所述的切断循环过滤管路包括：切换装置270导通外排管路250和循环泵400的出水端。
可以理解的是，所述的切断循环过滤管路也可以通过关闭循环泵400实现。
在上述方案中，洗衣机在漂洗过程中对漂洗水进行循环过滤，过滤装置600及循环过滤管路中始终充满漂洗水。漂洗结束关闭循环泵400后，排水管路210和循环管路220中的水在重力作用下向下回流，最多可回流至排水管路210中水面高度与盛水筒100中水位高度平齐，水面以上直至过滤装置600之间的管路中充满空气。但过滤装置600低于循环管路220，其中的水不会经循环管路220回流。关闭循环泵400的同时也关闭回水控制阀231，且此时排污控制阀241为关闭状态，过滤装置600内部的水留存在过滤腔体610内，不会向外排出。
驱动机构660开启后，带动过滤机构620高速转动，使表面附着的线屑等过滤杂质在离心力作用下从过滤机构620表面剥离。此时，由于回水控制阀231与排污控制阀241均为关闭状态，过滤腔体610内的水不流出，高速转动的过滤机构620还可以搅动过滤腔体610内的水流，形成的激荡水流对过滤机构620表面造成一定冲击力，也可以使线屑脱落。从过滤机构620表面剥离的线屑融入过滤腔体610内的水中。
开启循环泵400的同时，也打开排污控制阀241，使排污管路240导通，过滤装置600内的污水可以从排污口6103排出。循环泵400的开启将排水管路210和循环管路220中的空气压入过滤装置600，进而使过滤装置600中携带线屑的污水在空气压力下由排污口6103完全排出，避免过滤装置600中存在污水残留，对过滤装置600的清理效果好。排污控制阀241在循环泵400开启的同时打开，保证了空气通入过滤装置600中时所产生的压力，进而可确保过滤装置600中的污水充分排出。
为避免过滤装置600中的污水排净后，盛水筒100中的水又经过循环管路220进入过滤装置600，洗衣机预设有第二设定条件，当达到第二设定条件时，切断循环过滤管路，停止盛水筒100中的水向过滤装置600输送。
本实施例中，洗衣机在洗涤阶段以及中间漂洗阶段，可通过循环泵400将盛水筒100中的水压入过滤装置600中，进而驱动过滤装置600中的污水排出。但在最后一次漂洗阶段，洗衣机后续不再进行循环过滤，为避免洗衣机停止运行后过滤装置600内有水残留，导致过滤装置600内部存在不易干燥的潮湿环境，通过先关闭循环泵400，等待管路中进入空气，再重新开启循环泵400的方式，将管路中空气压入过滤装置600，从而可将其中的污水完全排净，有效避免潮湿环境造成的细菌滋生。
本实施例的具体方案中，所述第一设定条件可以为循环泵400关闭达到第一设定时间t1，所述第二设定条件可以为循环泵400开启达到第二设定时间t2。
在上述方案中，第一设定时间t1和第二设定时间t2的具体取值可以预先通过大量实验得出并直接写入洗衣机的控制程序中。
具体地，第一设定时间t1的取值约为排水管路210中水位高度开始下降直至停止所需的最大时长，第二设定时间t2的取值约为排水管路210中水位在循环泵400开启后上升至接近排水管路210顶端所需的最短时长。如此，可以保证循环泵400关闭期间，管路中能够进入更大量的空气，同时，有效避免循环泵400开启后再有水进入过滤装置600的情况。
本实施例的另一种方案中，还可以采用水位高度作为第一设定条件和第二设定条件。具 体地，所述第一设定条件为：循环泵400与过滤装置600之间的管路中，水位达到第一设定值H1。所述第二设定条件为：循环泵400与过滤装置600之间的管路中，水位达到第二设定值H2。其中，H1<H2。
在本实施例中，上述水位具体为排水管路210中的水位高度，洗衣机的排水管路210中可以设置水位检测装置，以实现对排水管路210中水位的检测。
在上述方案中，第一设定值H1的取值大于且尽量接近洗衣机的最高水位高度，以保证循环泵400关闭后，排水管路210中的水位可以下降达到第一设定值H1。
从洗衣机接收到排水管路210中的水位上升至第二设定值H2的信号，直至切换装置270导通排水管路210与外排管路250之间一般具有一定时间差。为避免响应延迟造成循环泵400开启后有水进入过滤装置600，第二设定值H2的取值与排水管路210的顶端所对应的水位高度之间需要具有一定差值ΔH。所述差值ΔH的具体取值可通过预先进行的大量实验得出，从而保证洗衣机接收到水位达到第二设定值H2的信号后，具有足够的响应时间控制切换装置270完成水路的切换。
本实施例中洗衣机的控制方法能够在最后一次漂洗排水前将过滤装置600内的水充分排出，确保洗衣机结束洗衣程序的运行后，过滤装置600中没有残留的漂洗水。如此，在洗衣机关机期间，能够最大程度上保证过滤装置600内部环境达到接近干燥，减少细菌滋生的问题。
实施例三
如图1至图5所示，本实施例为上述实施例的进一步限定，所述的洗衣机还包括与排污管路240连通的回收装置500。
具体地，排污管路240的出水端与回收装置500连通，洗衣机的排污操作中，循环泵400运行，驱动过滤装置600中携带过滤杂质的污水经排污管路240排入回收装置500中。
所述过滤杂质主要由衣物洗涤时脱落的衣物纤维组成，而随着化纤面料的普及，脱落的衣物纤维中包含大量的微塑料，所述微塑料进入自然水环境会严重危害生态环境和人体健康。
在上述方案中，过滤装置600内携带过滤杂质的污水从排污口6103排出后，可进入回收装置500被收集，而不会汇入排水水流直接排出洗衣机。通过以上方式避免了过滤杂质中的微塑料随水流排走，进入生态循环中，进而对生态环境及人体健康带来危害的问题。
本实施的回收装置500具体包括：
壳体510，内部具有回收腔室；
过滤组件520，设置在所述回收腔室内，将所述回收腔室分隔为第一腔室531和第二腔室532。
排污管路240与第一腔室531连通，携带过滤杂质的污水进入第一腔室531，经过滤组件520过滤后进入第二腔室532，过滤杂质收集于第一腔室531中。
在上述方案中，回收装置500中设置过滤组件520，用于对过滤装置600排入的污水进行过滤，将其中的过滤杂质从水中分离出来。通过过滤组件520将回收装置500内部分隔为第一腔室531和第二腔室532，污水中的过滤杂质被过滤组件520阻挡，从而将过滤杂质收集于第一腔室531中过滤组件520上表面，过滤后得到的清水收集于第二腔室532中。用户可直接对分离出的过滤杂质进行收集处理，避免了过滤杂质混合在水中，无法对其进行有效 处理的情况。
具体地，过滤组件520可以为水平设置在回收腔室内一定高度处的框架及铺设在所述框架上的滤网。携带过滤杂质的污水进入第一腔室531后，水可通过过滤组件520进入第二腔室532，过滤杂质被滤网阻挡，残留在过滤组件520上表面。
具体地，回收装置500的壳体510可插入/抽出的设置在箱体10上，壳体510的上侧具有敞口。用户将壳体510从箱体10中抽出时，可通过壳体510上侧的敞口对附着在过滤组件520上表面的过滤杂质进行清理。过滤组件520优选与壳体510可拆卸连接，用户可将过滤组件520从壳体510内部卸下并取出进行清理，操作更加方便。
本实施例的优选方案中，第二腔室532上设置出水口，用于排出过滤后的清水。通过在第二腔室532上设置出水口，可将进入第二腔室532的清水及时排出回收装置500，避免过滤装置600排入的污水量较大时，回收装置500出现溢水现象。否则需要增加第二腔室532的容量，也即需要加大回收装置500的体积，导致其在洗衣机内部占用较大空间，不利于洗衣机整体体积的小型化。
另一方面，第二腔室532中的水可由出水口自动排出，用户对回收装置500进行清理时，只需要清理过滤组件520上的过滤杂质，而无需手动倒出第二腔室532中的清水。当过滤组件520可拆卸地安装在壳体510中时，用户甚至不需要将壳体510从洗衣机的箱体10上完全取下，只需要取出过滤组件520进行清理即可，更方便操作。
本实施例的一种优选方案中，第二腔室532的出水口与盛水筒100连通，向第二腔室532内收集的水输送至盛水筒100中。例如，第二腔室532的出水口可以与回水管路230连通，或直接通过管路与盛水筒100连通。
由于进入回收装置500的污水在回收装置500内经过了过滤组件520的过滤，其中的过滤杂质已被除去，收集于第二腔室532内的为不含过滤杂质的清水。将其送入盛水筒100中，可实现对这一部分清水的重复利用，从而减少洗衣机继续运行时所需的进水量，可实现节省洗衣机用水量的目的。
本实施例的另一种优选方案中，第二腔室532的出水口可以直接或间接地通向洗衣机外部。例如，将第二腔室532的出水口通过管路与外排管路250连通，将第二腔室532内收集的水经外排管路250排出洗衣机。
由于第二腔室532内收集的为不含过滤杂质的清水，将其直接排出并不会造成微塑料进入生态循环的问题。
本实施例中，通过在洗衣机内部设置回收装置500接收过滤装置600排出的污水，可以收集污水中携带的过滤杂质，避免了过滤杂质中的微塑料直接汇入排水水流而进入生态循环的问题。
实施例四
如图1至图5所示，本实施例为上述实施例的进一步限定，所述过滤杂质600的过滤腔体610中还设置清洗颗粒680，用于随水流摩擦碰撞清洗过滤腔体610内壁和过滤机构620外壁。
本实施例中，在循环过滤过程中，清洗颗粒680随流动的水流不断摩擦过滤腔体610内壁和过滤机构620外壁，使附着的过滤杂质脱落，从而可防止过滤杂质过快沉积，避免过滤机构620很快即被过滤杂质覆盖，影响过滤效率。另一方面，也避免了过滤完成后附着的过 滤杂质厚度较大，在过滤腔体610内壁或过滤机构620外壁贴合过于牢固，在驱动机构660带动过滤机构620转动时，附着的过滤杂质难以除去的问题。
本实施例中，清洗颗粒680的形状包括但不限于球形、椭球形、椭圆柱形等。清洗颗粒680的表面可以为光滑表面，也可以为非光滑表面。优选具有非光滑表面的清洗颗粒680，可以加大其与过滤腔体610内壁和过滤机构620外壁的摩擦力，剥离过滤杂质的效果更好。
清洗颗粒680的材质优选为耐磨弹性材料，避免清洗颗粒680在使用过程中轻易磨损。清洗颗粒680的回弹性优选为0％～50％，由受力时较容易发生形变的弹性材料制成清洗颗粒680，能够避免过滤机构620转动过程中与清洗颗粒680卡死，甚至导致过滤装置600损坏。
本实施例的进一步方案中，过滤腔体610内还设置阻挡机构，所述阻挡机构将过滤腔体610内部分隔为第一空间与第二空间，入水口6101与第一空间连通，过滤水出口6102和排污口6103与第二空间连通，清洗颗粒680设于所述第一空间中。
在上述方案中，阻挡机构将过滤腔体610内部分隔为左侧的第一空间与右侧的第二空间，过滤机构620的主体部分位于第一空间内。在过滤过程中，清洗颗粒680在第一空间中的过滤腔体610与过滤机构620之间，随流动的水流不断摩擦过滤腔体610内壁和过滤机构620外壁，使附着的过滤杂质脱落。当过滤机构620在过滤腔体610内转动时，清洗颗粒680随激荡水流的作用在过滤腔体610中运动，与过滤腔体610内壁和过滤机构620外壁发生摩擦，可以提高过滤杂质的剥离效率。向外排出污水时，水流可通过阻挡机构由排污口6103排出，清洗颗粒680被阻挡机构阻拦，滞留在左侧的第一空间中，避免了清洗颗粒680经排污口6103随水流排出，或是堵塞排污口6103，影响污水排出效率的情况。
具体地，所述阻挡机构包括设置在过滤腔体610内部的挡板690，在挡板690左右两侧分别形成所述第一空间与第二空间。入水口6101和清洗颗粒680设于挡板690的左侧，过滤水出口6102和排污口6103设于挡板690的右侧。挡板690上设置若干过水孔691，过水孔691连通第一空间与第二空间，但清洗颗粒680被挡板690限制于第一空间内，不会进入第二空间。
进一步地，挡板690的外周与过滤腔体610的内壁贴合或接近贴合设置，过水孔691的宽度为D1，清洗颗粒680的宽度为d，且D1＜d。
本实施例中的过水孔691为圆孔，过水孔691的宽度D1即为过水孔691的直径大小。可以理解的是，过水孔691也可以设置为其他形状，如方孔、条形孔等，此时不同方向上过水孔691的最小尺寸即为宽度D1。
类似地，对于球形的清洗颗粒680，所述清洗颗粒680的宽度d即为清洗颗粒680的直径。对于其他形状的清洗颗粒680，由于在不同方向上清洗颗粒680的尺寸不完全相同，多个不同尺寸中最小的尺寸即为所述的宽度d。如此可以保证清洗颗粒680无论如何转变方向都无法通过挡板690上的过水孔691，进而保证了挡板690对清洗颗粒680的有效阻拦。
本实施例的进一步方案中，清洗颗粒680的密度小于水，水流进入过滤腔体610后，清洗颗粒680可以在水中上浮，进而更容易在水流的带动下在过滤腔体610的第一空间内运动，从而发生摩擦碰撞，加速衣物处理剂的均匀溶解，或者使过滤杂质脱落。如此避免了水流冲击力不足时，清洗颗粒680沉积在过滤腔体610底部，无法起到有效作用的情况。
本实施例的进一步方案中，所述过滤机构620包括沿转动轴线向过滤水出口6102延伸的出水接头621，出水接头621的一端与过滤机构620的主体部分连接并位于挡板690左侧， 另一端穿过挡板690，且可转动的插设在过滤水出口6102中。挡板690上设置供出水接头621穿过的通孔，通孔与出水接头621的外壁间隙配合。
在上述方案中，过滤机构620内部过滤后的水经出水接头621流出，出水接头621的外壁与挡板690上通孔的内壁不接触，防止过滤机构620转动时挡板690与出水接头621之间存在摩擦而产生阻力，影响过滤机构620的顺畅转动。
本实施例中，在过滤腔体610内设置清洗颗粒680，可以通过清洗颗粒680与过滤腔体610内部和过滤机构620外壁摩擦，防止过滤杂质过度沉积，提高过滤机构620转动时过滤杂质的剥离效率，进而可改善过滤装置600的自清洁效果。
实施例五
如图7和图8所示，本实施例为上述实施例中过滤装置600(图中挡板未示出)的进一步限定，所述过滤水出口6102的外周向过滤腔体610外部延伸形成密封支撑部611，过滤机构620的出水接头621插设在密封支撑部611中，且与密封支撑部611可转动的密封连接。所述的出水接头621上套设第一轴承631，第一轴承631朝向过滤腔体610内部的一侧设置有第一密封件641，第一密封件641封堵出水接头621与密封支撑部611之间的间隙。
在上述方案中，出水接头621与密封支撑部611之间设置第一轴承631，对出水接头621进行支撑，使出水接头621在密封支撑部611内的转动更加顺畅，同时结构稳定，可以保证过滤机构620在过滤腔体610内的稳定转动。在第一轴承631的右侧设置第一密封件641，过滤腔体610内的洗涤水无法进入出水接头621与密封支撑部611之间的间隙，防止了第一轴承631与水接触，避免了第一轴承631失效，保证了第一轴承631的作用效果。同时，第一密封件641还防止了未经过滤的洗涤水从过滤水出口6102经密封支撑部611流出，影响过滤装置600对过滤杂质的清除效率。
本实施例的具体方案中，第一密封件641套设在出水接头621上，第一密封件641的内壁与出水接头621的外壁密封连接，第一密封件641的外壁与密封支撑部611的内壁可转动的密封连接。
本实施例的进一步方案中，过滤装置600还包括第二密封件642，第二密封件642设置在第一轴承631背向过滤腔体610内部的一侧，封堵出水接头621与密封支撑部611之间的间隙。
具体地，第二密封件642套设在出水接头621上，第二密封件642的内壁与出水接头621的外壁密封连接，第二密封件642的外壁与密封支撑部611的内壁可转动的密封连接。
在上述方案中，第一轴承631的左侧还设置有第二密封件642，经出水接头621流出的水可以被第二密封件642阻挡，不会与第一轴承631接触。第一轴承631位于第一密封件641和第二密封件642之间，最大程度上保证了第一轴承631的安装环境无水，避免了第一轴承631遇水生锈，影响过滤机构620转动的顺畅性。
本实施例的进一步方案中，密封支撑部611的内壁具有阶梯结构，从密封支撑部611一端向过滤腔体610外部依次形成具有环形结构，且内径逐渐缩小的第一限位面601、第二限位面602和第三限位面603。
第一密封件641朝向过滤腔体610外侧的表面与第一限位面601抵接，第一轴承631朝向过滤腔体610外侧的表面与第二限位面602抵接，第二密封件642朝向过滤腔体610外侧的表面与第三限位面603抵接。
在上述方案中，通过阶梯结构的密封支撑部611内壁形成多个竖直的环形限位面，分别与第一密封件641、第一轴承631和第二密封件642各自的左侧表面抵接，可限制以上三者在出水接头621轴向上的移动，防止过滤机构620转动过程中，出水接头621与密封支撑部611之间的配合结构松动。
本实施例的优选方案中，出水接头621靠近过滤腔体610外部的一端的外径小于另一端的外径，在出水接头621的外壁上形成具有环形结构，且与出水接头621的轴线垂直的第四限位面604。第一轴承631朝向过滤腔体610内侧的表面与第四限位面604抵接。
通过设置出水接头621左端外径小于右端，在外径突变处形成朝向左侧的第四限位面604，与第一轴承631的右侧表面抵接。如此，第一轴承631两侧均具有限位结构，结构更加稳定。
本实施例中，密封支撑部611远离过滤腔体610的一端，也即密封支撑部611的左端连接过滤腔法兰650，过滤腔法兰650中部具有与出水接头621连通的贯通口653。贯通口653的外周背向密封支撑部611延伸形成连接部651。
优选地，过滤腔法兰650朝向密封支撑部611一侧的表面具有凸起的插接部652，插接部652插设在密封支撑部611左端的开口内。
在上述方案中，密封支撑部611左端连接过滤腔法兰650，并在过滤腔法兰650上形成连接部651，连接部651的外径小于密封支撑部611的外径，连接部651的内径优选等于出水接头621的内径。过滤装置600安装于洗衣机中时，通过连接部651与回水管路连接，相较于回水管路直接连接在密封支撑部611左端的方式，安装更加容易。
过滤腔法兰650右侧具有插入密封支撑部611左端开口的插接部652，便于过滤腔法兰650与密封支撑部611装配时的定位。过滤腔法兰650和密封支撑部611外周分别设置若干固定部，通过螺钉穿过所述固定部，实现过滤腔法兰650和密封支撑部611的固定。
本实施例的进一步方案中，密封支撑部611的外壁设置沿密封支撑部611的径向延伸的加强筋613，加强筋613与过滤腔体610上过滤水出口6102所在的表面连接。
由于密封支撑部611从过滤腔体610的左侧端面伸出一定长度，加强筋613的设置从外部对其周侧壁进行支撑，保证了密封支撑部611的强度。
本实施例中，过滤机构620包括过滤网支架和过滤网625，过滤网支架具体包括：
过滤网支撑部623，位于过滤腔体610内部，过滤网625覆盖在过滤网支撑部623表面，过滤网支撑部623和过滤网625共同构成过滤机构620的主体部分；
出水接头621，设置在过滤网支撑部623左端，可转动的插设在密封支撑部611中；
转动支撑部622，设置在过滤网支撑部623右端，与过滤腔体610可转动的连接。
本实施例的进一步方案中，过滤机构620右端的转动支撑部622沿其转动轴线向过滤腔体610外部延伸，过滤腔体610上设置供转动支撑部622穿过的安装口6104。转动支撑部622与安装口6104可转动的密封连接。
转动支撑部622用于连接驱动过滤机构620转动的驱动机构，转动支撑部622从过滤腔体610右端伸出，并在转动支撑部622的右端设置电机安装部624，用于与驱动机构连接，从而可以将驱动机构设置在过滤腔体610外部，避免与水接触。
进一步地，安装口6104的外周沿转动支撑部622的轴线向过滤腔体610外延伸形成套筒 部612，转动支撑部622上套设第三密封件643。第三密封件643的内壁与转动支撑部622的外壁密封连接，第三密封件643的外壁与套筒部612的内壁可转动的密封连接。
套筒部612与转动支撑部622之间还设置第二轴承632，第二轴承632套设在转动支撑部622上，位于第三密封件643朝向过滤腔体610外部的一侧。
在上述方案中，第三密封件643的设置防止过滤腔体610内的水从安装口6104漏出，第二轴承632的设置可以对转动支撑部622起到支撑作用，保证转动支撑部622与套筒部612的相对转动更加顺畅。第二轴承632设置在第三密封件643的右侧，不与过滤腔体610内的水接触，避免失效。
本实施例的优选方案中，套筒部612靠近过滤腔体610外部的一端的内径小于另一端的内径，在套筒部612的内壁上形成具有环形结构，且与转动支撑部622的轴线垂直的第五限位面605。第三密封件643朝向过滤腔体610外侧的表面与第五限位面605抵接。
转动支撑部622靠近过滤腔体610外部的一端的外径小于另一端的外径，在转动支撑部622的外壁上形成具有环形结构，且与转动支撑部622的轴线垂直的第六限位面606。第二轴承632朝向过滤腔体610内侧的表面与第六限位面606抵接。
在上述方案中，套筒部612右端的内径小于左端的内径，在其内径突变处形成朝向左侧的第五限位面605，与第三密封件643的右侧表面抵接。转动支撑部622右端的外径小于左端的外径，其外径突变处形成朝向右侧的第六限位面606，与第二轴承632的左侧表面抵接。以上结构限制了第三密封件643和第二轴承632在转动支撑部622轴向上的移动，结构稳定。
进一步地，过滤网支撑部623中部区域的横截面积一定，其左右两端具有锥形结构，使过滤网625的局部表面倾斜设置，有利于所附着过滤杂质的脱落。
本实施例中，过滤机构620两端分别设有第一轴承631与第二轴承632进行支撑，保证了过滤机构620在过滤腔体610内顺畅且稳定地转动。同时通过第一密封件641、第二密封件642和第三密封件643的设置，最大程度的保证了第一轴承631和第二轴承632的安装环境无水，防止了第一轴承631和第二轴承632与水接触，避免了两者的失效。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (10)

  1. 一种洗衣机的控制方法，所述洗衣机包括：
    盛水筒；
    循环过滤管路，其进水端和出水端分别与盛水筒连通，其上设置循环泵；
    过滤装置，设置在循环泵与循环过滤管路的出水端之间，具有向外排出污水的排污口；
    排污管路，与过滤装置的排污口连接；
    其特征在于，所述洗衣机在洗涤/漂洗过程中交替执行：
    循环过滤操作，关闭过滤装置的排污口和/或切断排污管路，循环泵运行，对盛水筒中的水进行循环过滤；
    以及排污操作，开启过滤装置的排污口和/或导通排污管路，循环泵运行，驱动过滤装置中的污水排入排污管路。
  2. 根据权利要求1所述的洗衣机的控制方法，其特征在于，所述排污操作中，循环泵持续运行一定时长，再执行循环过滤操作。
  3. 根据权利要求1或2所述的洗衣机的控制方法，其特征在于，所述过滤装置包括：
    过滤腔体，其上设置入水口、过滤水出口及排污口，所述入水口与过滤水出口分别连接在循环过滤管路上；
    过滤机构，可转动的设置在过滤腔体内；
    驱动机构，用于驱动所述过滤机构在过滤腔体内转动；
    所述排污操作还包括：循环泵运行期间，开启驱动机构，带动过滤机构在过滤腔体内转动。
  4. 根据权利要求1-3中任意一项所述的洗衣机的控制方法，其特征在于，所述循环过滤操作包括如下步骤：
    S1、关闭过滤装置的排污口和/或切断排污管路；
    S2、开启循环泵并持续运行一定时长；
    S3、关闭循环泵并持续一定时长；
    S4、若本次循环过滤操作中执行步骤S2的次数达到预设次数，则结束循环过滤操作，否则返回至步骤S2；
    优选地，步骤S2中，循环泵持续运行第三预设时长T3；步骤S3中，关闭循环泵并持续第二预设时长T2；其中，所述第三预设时长T3大于第二预设时长T2。
  5. 根据权利要求4所述的洗衣机的控制方法，其特征在于，所述过滤装置包括：
    过滤腔体，其上设置入水口、过滤水出口及排污口，所述入水口与过滤水出口分别连接在循环过滤管路上；
    过滤机构，可转动的设置在过滤腔体内；
    驱动机构，用于驱动所述过滤机构在过滤腔体内转动；
    步骤S3还包括：循环泵关闭期间，开启驱动机构，带动过滤机构在过滤腔体内转动。
  6. 根据权利要求5所述的洗衣机的控制方法，其特征在于，所述排污操作中，在循环泵运行期间开启驱动机构，带动过滤机构在过滤腔体内持续转动第一预设时长T1；
    步骤S3中，驱动机构带动过滤机构在过滤腔体内持续转动第二预设时长T2；所述第二预设时长T2小于第一预设时长T1。
  7. 根据权利要求1-6中任意一项所述的洗衣机的控制方法，其特征在于，所述洗衣机还包括用于向外部排水的外排管路，所述外排管路的进水端连接在循环过滤管路上循环泵与过滤装置之间；所述过滤装置和外排管路择一与循环泵导通；
    洗涤/漂洗过程中，所述过滤装置与循环泵导通；
    洗涤/漂洗过程结束后，洗衣机执行排污操作，排污操作完成后，导通循环泵与外排管路，循环泵运行，驱动盛水筒中的水经外排管路排出洗衣机。
  8. 根据权利要求7所述的洗衣机的控制方法，其特征在于，洗涤/漂洗进水前，导通循环泵与过滤装置；开始向盛水筒进水，执行循环过滤操作，循环过滤操作结束后执行排污操作；所述循环过滤操作与排污操作交替执行，直至洗涤/漂洗过程结束。
  9. 一种洗衣机，其特征在于，采用权利要求1-8中任意一项所述的洗衣机的控制方法。
  10. 根据权利要求9所述的洗衣机，其特征在于，还包括与所述排污管路连通的回收装置，所述排污操作中，循环泵运行，驱动过滤装置中的污水经排污管路排入所述回收装置。
PCT/CN2023/075835 2022-03-18 2023-02-14 一种洗衣机的控制方法及洗衣机 Ceased WO2023173979A1 (zh)

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