Filter screen filth blockage treatment method of fabric treatment equipment and fabric treatment equipment

Abstract

The invention provides a filter screen filth blockage treatment method of fabric treatment equipment, the fabric treatment equipment comprises a fabric treatment cylinder and a circulating spraying device, the fabric treatment cylinder and the circulating spraying device are communicated to form a circulating spraying flow path, a first water pump is arranged on the circulating spraying flow path, the circulating spraying device comprises a cleaning cavity with a built-in filter screen, and the filter screen is arranged in the cleaning cavity. When the first water pump runs, washing water in the fabric treatment barrel can be discharged into the cleaning cavity, and is discharged back into the fabric treatment barrel from the cleaning cavity after being filtered by the filter screen; the filter screen filth blockage treatment method comprises the steps that when a first water pump operates, operation parameters of a first water pump motor are obtained, and whether the operation parameters meet requirements or not is judged; if yes, determining that the filter screen does not have filth blockage; and if not, determining that the filter screen has filth blockage.

Description

Technical Field

[0001] The present application relates to the technical field of fabric processing equipment, and in particular to a method for processing filter blockage of fabric processing equipment and a fabric processing equipment. Background Art

[0002] Some existing fabric processing equipment has a circulating spray washing function, that is, the washing water in the fabric processing equipment can be circulated and utilized through a circulating spray device.

[0003] However, during the washing process, dandruff is generated. In order to prevent the dandruff from clogging the circulating spray device, a filter is usually provided in the circulating spray device. The filter can effectively isolate the dandruff in the water path.

[0004] However, when the hair debris on the filter screen accumulates to a certain extent, if it is not cleaned in time, it will affect the spray flow of the circulating spray device, thereby affecting the circulating spray effect. Summary of the invention

[0005] In order to overcome the problem that the filter screen in the existing fabric processing equipment is not cleaned in time and is likely to affect the circulating spray washing effect of the fabric processing equipment, the embodiment of the present invention proposes a method for processing the dirty and blocked filter screen of the fabric processing equipment and a fabric processing equipment, which filters the circulating spray water by setting a filter screen in the circulating spray device, and can judge the dirty and blocked condition of the filter screen by obtaining the operating parameters of the first water pump, so that the filter screen can be cleaned in time, avoiding the problem that the circulating spray washing effect is not good due to the failure to clean the filter screen in time. Specifically:

[0006] In a first aspect, an embodiment of the present application provides a method for treating filter blockage in a fabric treatment device, wherein the fabric treatment device comprises a fabric treatment drum and a circulating spray device, wherein the fabric treatment drum and the circulating spray device are connected to form a circulating spray flow path, wherein a first water pump and a filter are provided on the circulating spray flow path, wherein the first water pump can cause washing water to circulate in the circulating spray flow path when in operation, so that the washing water can be discharged from the fabric treatment drum and then be filtered by the filter and discharged back into the fabric treatment drum;

[0007] The methods for dealing with dirty filter blockage include:

[0008] When the first water pump is running, obtaining operating parameters of the first water pump motor and judging whether the operating parameters meet the requirements, wherein the operating parameters of the first water pump motor include at least one of motor output power and motor input current;

[0009] If so, make sure the filter is not dirty or blocked;

[0010] If not, it is determined that the filter is dirty and blocked.

[0011] In the above technical solution, obtaining the operating parameters of the first water pump motor and judging whether the operating parameters meet the requirements include:

[0012] Obtaining whether multiple operating parameters of the first water pump motor meet the requirements;

[0013] If so, make sure the filter is not dirty or blocked;

[0014] If not, it is determined that the filter is dirty and blocked.

[0015] In the above technical solution, the multiple operating parameters of the first water pump motor include at least an average power value of the first water pump motor within a first preset time length, and a temperature rise value of the first water pump motor within a second preset time length.

[0016] In the above technical solution, the method for obtaining whether multiple operating parameters of the first water pump motor are not satisfactory includes:

[0017] Determine whether the average power value of the first water pump motor within a first preset time length is less than a preset power value, and whether the temperature rise value of the first water pump motor within a second preset time length is greater than a preset temperature rise value;

[0018] If the average power value of the first water pump motor within the first preset time is less than the preset power value, and the temperature rise value of the first water pump motor within the second preset time is greater than the preset temperature rise value, then multiple operating parameters of the first water pump motor do not meet the requirements, and it is determined that the filter is dirty and blocked;

[0019] If the average power value of the first water pump motor within the first preset time period is not less than the preset power value, and / or the temperature rise value of the first water pump motor within the second preset time period is not greater than the preset temperature rise value, it is determined that the filter is not dirty or blocked.

[0020] In the above technical solution, if the average power value of the first water pump motor within the first preset time is less than the preset power value, and the temperature rise value of the first water pump motor within the second preset time is greater than the preset temperature rise value, then multiple operating parameters of the first water pump motor do not meet the requirements, and it is determined that the filter screen is dirty and blocked, including:

[0021] First, determine whether the average power value of the first water pump motor within a first preset time period is less than a preset power value;

[0022] If the average power value of the first water pump motor within the first preset time length is less than the preset power value, further obtaining whether the temperature rise value of the first water pump motor within the second preset time length is greater than the preset temperature rise value;

[0023] If the temperature rise value of the first water pump motor within the second preset time period is greater than the preset temperature rise value, it is determined that the filter screen is dirty and clogged.

[0024] In the above technical solution, the filter screen dirty blockage treatment method also includes:

[0025] When the rotation speed of the first water pump motor reaches a first preset rotation speed, obtaining the operating parameters of the first water pump motor;

[0026] The first preset speed is between 1000r / min-10000r / min.

[0027] In the above technical solution, the first water pump motor includes a motor winding;

[0028] Obtaining whether the temperature rise value of the first water pump motor within the second preset time period is greater than the preset temperature rise value includes:

[0029] Obtain whether the temperature rise value of the motor winding of the first water pump within the second preset time period is greater than the preset temperature rise value.

[0030] In the above technical solution, the circulating spray device includes a cleaning chamber with a built-in filter screen, and the fabric processing device also has a filter screen self-cleaning program. Under the filter screen self-cleaning program, the circulating spray washing is stopped and the fabric processing drum is controlled to drain water, and the washing water can be discharged into the cleaning chamber and discharged from the cleaning chamber after being filtered by the filter screen; the circulating spray device also includes a cleaning member rotatably arranged in the cleaning chamber, wherein the cleaning member can rotate under the impact of the water flow entering the cleaning chamber, and clean the surface of the filter screen by contacting with the filter screen during rotation;

[0031] The methods for dealing with dirty filter blockage also include:

[0032] When it is determined that the filter screen is dirty and clogged, the fabric processing device is controlled to run a filter screen self-cleaning program, and according to the current washing stage of the fabric processing device, the water level in the fabric processing drum after the filter screen self-cleaning program is run is controlled;

[0033] The washing stage includes a pre-wash stage and a main wash stage.

[0034] In the above technical solution, according to the current washing stage of the fabric treatment device, the water level of the fabric treatment drum after the filter self-cleaning program is run is controlled, including:

[0035] If the current washing stage is the pre-wash stage, the water in the fabric treatment drum is drained to the empty drum water level.

[0036] In the above technical solution, the filter screen dirty blockage treatment method also includes:

[0037] When the filter self-cleaning program is executed in the pre-wash stage, the drainage time of the fabric treatment device when draining the washing water in the fabric treatment drum to the empty drum water level is calculated, and based on the drainage time, it is determined whether to re-run the circulating spray washing in the pre-wash stage to determine whether the filter is still dirty and blocked.

[0038] In the above technical solution, whether to re-run the cyclic spray washing in the pre-washing stage to judge whether the filter is still dirty and blocked is determined according to the drainage time, including:

[0039] If the drainage time exceeds the preset drainage time, the pre-wash phase ends and the main wash phase begins;

[0040] If the drainage time does not exceed the preset drainage time, re-run the circulating spray washing in the pre-wash stage, and determine whether the filter is still dirty or blocked under the circulating spray washing.

[0041] In the above technical solution, according to the current washing stage of the fabric treatment device, the water level of the fabric treatment drum after the filter self-cleaning program is run is controlled, including:

[0042] If the current washing stage is the main wash stage, the water level in the fabric treatment drum is drained to the heating safety water level, and after the water level in the fabric treatment drum is drained to the heating safety water level, water is refilled to the main wash water level to continue the main wash stage until the main wash stage ends.

[0043] A second aspect of an embodiment of the present application provides a fabric processing device, comprising:

[0044] A fabric treatment drum, the fabric treatment drum is used to contain clothes to be treated;

[0045] A circulating spray device, the circulating spray device comprises a cleaning chamber with a built-in filter screen, the cleaning chamber having a water inlet and a first drain outlet communicated with the fabric treatment cylinder;

[0046] a first water pump, wherein the first water pump is capable of discharging the washing water in the fabric treatment drum into the cleaning chamber when in operation, and then discharging the washing water from the cleaning chamber back into the fabric treatment drum after being filtered by the filter screen;

[0047] The sensor and the controller are used to obtain the operating parameters of the first water pump when it is running, and the controller is used to determine whether the filter is dirty and blocked according to the operating parameters.

[0048] In the above technical solution, the circulating spray device further comprises a cleaning member rotatably disposed in the cleaning chamber;

[0049] When water enters the cleaning cavity, the cleaning element can rotate under the impact of the incoming water flow, and clean the surface of the filter screen by contacting with the filter screen during the rotation.

[0050] In the above technical solution, the filter screen includes a cylindrical mesh structure built into the cleaning chamber, the filter screen of the cylindrical mesh structure is arranged to form a cavity communicating with the cleaning chamber through the filter mesh holes, and the cavity is communicated with the first drain port;

[0051] The cleaning member comprises a scraper strip which is sleeved on the outer periphery of the cylindrical filter screen and is in contact with the outer peripheral surface of the filter screen;

[0052] When water enters the cleaning chamber, the scraper bar can be driven to rotate around the periphery of the filter screen to scrape and clean the peripheral surface of the filter screen.

[0053] In the above technical solution, the cleaning element further comprises:

[0054] An impeller built into the cleaning chamber, with the impeller and scraper connected together;

[0055] When water enters the cleaning chamber, the impeller can rotate under the impact of the incoming water flow, so as to drive the scraper bar to rotate around the periphery of the filter screen to scrape and clean the peripheral surface of the filter screen.

[0056] In the above technical solution, the cleaning chamber also has a second drain port;

[0057] Fabric processing equipment also includes:

[0058] a water inlet pipe connected between the water inlet of the cleaning chamber and the bottom of the fabric treatment drum, and used for receiving washing water from the fabric treatment drum;

[0059] A first drain pipe, the first drain pipe is connected between the first drain port of the cleaning chamber and the top of the fabric treatment drum, and is used to drain the filtered washing water in the cleaning chamber into the fabric treatment drum again;

[0060] a second drain pipe, the second drain pipe is connected to the second drain port of the cleaning chamber and is used to drain water in the cleaning chamber;

[0061] The water inlet pipe, the first drain pipe and the second drain pipe can all be controlled to open individually.

[0062] In the above technical solution, a first water pump is provided on the first drain pipe or at the first drain outlet, and the first water pump is used to pump the washing water in the cleaning chamber into the fabric treatment drum;

[0063] A second water pump is provided on the second drainage pipe or at the second drainage port, for discharging the washing water in the cleaning chamber out of the fabric treatment device;

[0064] The fabric treatment device further comprises a main wash water pipe having a water inlet valve, and when the water inlet valve is opened, washing water can be injected into the fabric treatment tub through the main wash water pipe.

[0065] In the above technical solution, the fabric processing device is a drum washing machine or a drum washer-dryer.

[0066] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0067] An embodiment of the present invention proposes a method for processing filter blockage of a fabric processing device and a fabric processing device, which filters the circulating spray water by arranging a filter in a circulating spray device, and at the same time can judge the blockage condition of the filter by obtaining the operating parameters of the first water pump, so that the filter can be cleaned in time, avoiding the problem of poor circulating spray washing effect caused by failure to clean the filter in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 The control flow of the method for treating dirt and blockage of fabric processing equipment in the embodiment of the present invention is as follows Figure 1 ;

[0069] Figure 2 The control flow of the method for treating dirt and blockage of fabric processing equipment in the embodiment of the present invention is as follows Figure 2 ;

[0070] Figure 3 The control flow of the dirty blockage treatment method of the fabric processing equipment in the embodiment of the present invention is as follows Figure 3 ;

[0071] Figure 4 It is a schematic diagram of the overall structure of a fabric processing device according to an embodiment of the present invention;

[0072] Figure 5 It is a cross-sectional structural schematic diagram of a circulating spray device in an embodiment of the present invention;

[0073] Figure 6 It is a schematic diagram of the three-dimensional structure of the impeller in the embodiment of the present application.

[0074] in:

[0075] 10-Clothes treatment drum;

[0076] 20-circulation spray device; 201-filter screen; 202-cleaning chamber; 2021-water inlet; 2022-first drain outlet; 2023-second drain outlet; 203-cleaning member; 2031-scraper; 2032-impeller;

[0077] 30-water inlet pipe;

[0078] 40-first drainage pipe; 401-first water pump; 402-second water pump;

[0079] 50 - Second drain pipe;

[0080] 60-Main wash water pipe. DETAILED DESCRIPTION

[0081] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0082] Throughout the specification and claims, the following terms have at least the meanings explicitly associated herein, unless the context dictates otherwise. The meanings identified below do not necessarily limit the terms, but merely provide illustrative examples of the terms.

[0083] In the description of the present invention, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may refer to the same embodiment. Similarly, the phrase "in some embodiments" as used herein, when used multiple times, does not necessarily refer to the same embodiment, although it may refer to the same embodiment. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or", unless the context clearly dictates otherwise. The term "based on" is not exclusive and allows for additional factors not described, unless the context clearly dictates otherwise. The word "exemplary" means "used as an example, instance or illustration" in this article. Any embodiment described herein as "exemplary" is not necessarily interpreted as being superior or superior to other embodiments. The scope of the present invention is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but only to set forth some of the many possible embodiments of the claimed invention. The various embodiments provided by the present invention should not be interpreted as limiting the scope of protection of the present invention.

[0084] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0085] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0086] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0088] Example

[0089] like Figure 1-Figure 6 As shown, the first aspect of the embodiment of the present application provides a method for treating filter screen clogging of a fabric treatment device, wherein the fabric treatment device comprises a fabric treatment drum 10 and a circulating spray device 20, wherein the fabric treatment drum 10 and the circulating spray device 20 are connected to form a circulating spray flow path, wherein a first water pump 401 and a filter screen 201 are provided on the circulating spray flow path, wherein the first water pump 401 can cause washing water to circulate in the circulating spray flow path when in operation, so that the washing water can be discharged from the fabric treatment drum 10 and then be filtered by the filter screen 201 and discharged back into the fabric treatment drum 10;

[0090] The methods for dealing with dirty filter blockage include:

[0091] When the first water pump 401 is running, the operating parameters of the motor of the first water pump 401 are obtained, and it is determined whether the operating parameters meet the requirements, wherein the operating parameters of the motor of the first water pump include at least one of the motor output power and the motor input current;

[0092] If yes, it is determined that the filter 201 is not dirty or blocked;

[0093] If not, it is determined that the filter screen 201 is dirty or clogged.

[0094] In the embodiment of the present application, a filter screen 20 is provided in the circulating spray device 20 to filter the circulating spray water. At the same time, by obtaining the operating parameters of the first water pump 401, it can be determined whether the filter screen 201 is dirty or blocked, so that the filter screen 201 can be cleaned in time, thereby avoiding the problem of poor circulating spray washing effect of the fabric processing equipment due to the filter screen 201 being dirty and blocked and not being cleaned in time.

[0095] Furthermore, in some implementations, obtaining the operating parameters of the motor of the first water pump 401 and determining whether the operating parameters meet the requirements include:

[0096] Obtaining whether multiple operating parameters of the motor of the first water pump 401 meet the requirements;

[0097] If yes, it is determined that the filter 201 is not dirty or blocked;

[0098] If not, it is determined that the filter screen 201 is dirty or clogged.

[0099] In the embodiment of the present application, by judging whether multiple operating parameters of the motor meet the requirements, it is possible to more accurately judge whether the filter 201 is blocked, avoiding the problem that only obtaining one parameter information may lead to inaccurate judgment.

[0100] Furthermore, in some embodiments, the multiple operating parameters of the first water pump 401 motor include at least an average power value of the first water pump 401 motor within a first preset time period, and a temperature rise value of the first water pump 401 motor within a second preset time period.

[0101] It should be noted that when the filter 201 is clogged, the average power value of the first water pump 401 motor within the first preset time period will be lower than the preset average power of the first water pump 401 motor within the first preset time period, and when the filter 201 is clogged, the idling of the first water pump will cause the temperature of the first water pump motor to rise faster, thereby causing the temperature rise value of the first water pump 401 motor within the second preset time period to be greater than the preset temperature rise value.

[0102] It should be noted that when the filter 201 is clogged, the water flow through the first water pump 401 will decrease, and the work done by the first water pump 401 will decrease, so the average power of the first water pump will be lower than the preset average power.

[0103] It should also be noted that the first preset time length and the second preset time length mentioned above may be the same or different.

[0104] Therefore, in some embodiments, the method for obtaining whether multiple operating parameters of the motor of the first water pump 401 are not satisfactory includes:

[0105] Determine whether the average power value of the first water pump 401 motor within the first preset time length is less than the preset power value, and whether the temperature rise value of the first water pump 401 motor within the second preset time length is greater than the preset temperature rise value;

[0106] If the average power value of the first water pump 401 motor within the first preset time is less than the preset power value, and the temperature rise value of the first water pump 401 motor within the second preset time is greater than the preset temperature rise value, then multiple operating parameters of the first water pump 401 motor do not meet the requirements, and it is determined that the filter 201 is dirty and blocked;

[0107] If the average power value of the first water pump 401 motor within the first preset time period is not less than the preset power value, and / or the temperature rise value of the first water pump 401 motor within the second preset time period is not greater than the preset temperature rise value, it is determined that the filter 201 is not dirty or blocked.

[0108] Further, in some embodiments, if the average power value of the first water pump 401 motor within the first preset time length is less than the preset power value, and the temperature rise value of the first water pump 401 motor within the second preset time length is greater than the preset temperature rise value, then multiple operating parameters of the first water pump 401 motor do not meet the requirements, and it is determined that the filter screen is dirty and blocked, including:

[0109] First, determine whether the average power value of the first water pump 401 motor within the first preset time period is less than the preset power value;

[0110] If the average power value of the first water pump 401 motor within the first preset time length is less than the preset power value, further obtaining whether the temperature rise value of the first water pump 401 motor within the second preset time length is greater than the preset temperature rise value;

[0111] If the temperature rise value of the motor of the first water pump 401 within the second preset time period is greater than the preset temperature rise value, it is determined that the filter screen 201 is dirty and blocked.

[0112] It should be noted that the reason why the average power value of the motor is first obtained in the embodiment of the present application, and the motor temperature rise value is obtained after the power value does not meet the requirements, is because the water pump motor itself will generate heat under normal operating conditions. Therefore, directly obtaining the motor temperature rise is not the most accurate judgment condition. It is still necessary to first obtain the abnormality of the power value and then judge the motor temperature rise.

[0113] Furthermore, in some embodiments, the filter screen dirty blockage treatment method further includes:

[0114] When the speed of the motor of the first water pump 401 reaches a first preset speed, the operating parameters of the motor of the first water pump 401 are obtained;

[0115] The first preset speed is between 1000r / min-10000r / min.

[0116] It should be noted that when the speed of the first water pump motor is between 1000r / min-10000r / min, the distinction will be more obvious when obtaining the average power of the motor within the preset time, making it easier to determine whether the filter is dirty or blocked.

[0117] Further, in some embodiments, the first water pump 401 motor includes a motor winding;

[0118] Obtaining whether the temperature rise value of the motor of the first water pump 401 within the second preset time period is greater than the preset temperature rise value includes:

[0119] Obtain whether the temperature rise value of the motor winding of the first water pump 401 within the second preset time period is greater than the preset temperature rise value.

[0120] It should be noted that in the embodiment of the present application, when obtaining the temperature rise value of the motor of the first water pump, the temperature rise value of the motor winding is obtained because the motor winding temperature is closest to the actual temperature of the motor.

[0121] Further, in some embodiments, the circulating spray device 20 includes a cleaning chamber 202 with a filter 201 built therein, and the fabric processing device also has a filter self-cleaning program. Under the filter self-cleaning program, the circulating spray washing is stopped and the fabric processing drum 10 is controlled to drain water, and the washing water can be discharged into the cleaning chamber 202 and discharged from the cleaning chamber 202 after being filtered by the filter 201; the circulating spray device 20 also includes a cleaning member 203 rotatably arranged in the cleaning chamber 202, wherein the cleaning member 203 can rotate under the impact of the water flow entering the cleaning chamber 202, and clean the surface of the filter 201 by contacting with the filter 201 during rotation;

[0122] The methods for dealing with dirty filter blockage also include:

[0123] When it is determined that the filter 201 is dirty and clogged, the fabric processing device is controlled to run a filter self-cleaning program, and the water level in the fabric processing drum 10 is controlled after the filter self-cleaning program is run according to the current washing stage of the fabric processing device;

[0124] The washing stage includes a pre-wash stage and a main wash stage.

[0125] In the embodiment of the present application, when the filter self-cleaning program is running, the water discharge from the fabric processing drum 10 is controlled, and the impact force during the water discharge can be utilized to drive the cleaning member 203 in the cleaning chamber 202 to rotate, thereby cleaning the filter 201 through the rotation of the cleaning member 203. The dust that falls off the filter 201 when it is being cleaned can be discharged from the cleaning chamber 202 along with the washing water.

[0126] Further, in some embodiments, according to the current washing stage of the fabric treatment device, controlling the water level of the fabric treatment drum after the filter self-cleaning program is run includes:

[0127] If the current washing stage is the pre-wash stage, the water in the fabric treatment drum 10 is drained to the empty drum water level.

[0128] It should be noted that the heating element does not work in the pre-wash stage, but is started to work in the main wash stage. The operation of the pre-wash stage is to increase the soaking and washing time of the clothes so as to improve the cleaning ratio of the clothes.

[0129] Furthermore, in some embodiments, the filter screen dirty blockage treatment method further includes:

[0130] When the filter self-cleaning program is executed in the pre-wash stage, the drainage time of the fabric processing equipment when draining the washing water in the fabric processing drum 10 to the empty drum water level is calculated, and based on the drainage time, it is determined whether to re-run the circulating spray washing in the pre-wash stage to determine whether the filter is still dirty and blocked.

[0131] The reason why the drainage time is obtained in the pre-wash stage in the embodiment of the present application is that the amount of water in the fabric treatment drum is uncertain, and the length of the drainage time directly reflects the cleaning time of the filter, thereby indirectly reflecting whether the filter can be fully cleaned within this drainage time.

[0132] Further, in some embodiments, determining whether to re-run the cyclic spray washing in the pre-washing stage to judge whether the filter screen is still dirty and blocked according to the drainage time includes:

[0133] If the drainage time exceeds the preset drainage time, it means that the drainage time is long enough, and the filter can be effectively cleaned for a long time by default, that is, the pre-wash stage can be ended at this time and the main wash stage can be entered;

[0134] If the drainage time does not exceed the preset drainage time, it means that the drainage time is not very long at this time, and it is impossible to determine whether the filter is fully cleaned. In this case, it is necessary to re-run the circulating spray washing in the pre-wash stage and re-obtain the operating parameters of the first water pump under the circulating spray washing to determine whether the filter is still dirty and blocked.

[0135] Specific, combined Figure 2 When the fabric treatment equipment runs the pre-wash stage, it mainly includes the following steps:

[0136] S1: runs to the washing pre-wash stage;

[0137] S2: Open the water inlet valve and let water in to the pre-wash water level;

[0138] S3: Turn on the circulating spray, and the first water pump motor speeds up to n revolutions;

[0139] S31: Read the power value of the first water pump motor within T1 seconds and calculate the power average value P1;

[0140] S32: Determine whether the power average value P1 is lower than the power during normal spraying; when the power average value P1 is lower than 80% of the water pump motor power P0 during normal spraying, execute the temperature rise judgment logic S4 step, otherwise end the pre-washing;

[0141] S4: Provide a stable current to the first water pump motor and read the temperature of the spray water pump motor winding {it is worth noting that under normal circumstances, the current provided will change according to the resistance of the water flow; if the filter is blocked, the idling of the water pump will cause the temperature of the motor to rise rapidly};

[0142] S41: Calculate the motor temperature rise value W1 within a specified time T2 seconds;

[0143] S42 determines whether the temperature rise value W1 of the first water pump motor is greater than the temperature rise value during normal spraying. If the temperature rise value W1 of the first water pump motor is greater than the preset temperature rise value, execute step S5, otherwise the pre-washing is terminated;

[0144] S5: Execute filter cleaning control;

[0145] S51 turns off the circulating spray, turns on the second water pump, drains to the empty drum water level, turns off the drainage pump, and counts the running time of the second water pump;

[0146] If the accumulated operation time of the second water pump exceeds t0, the filter cleaning procedure is exited and the process goes to S5; if it does not exceed t0, the process goes back to step S2;

[0147] S6: End the pre-wash phase and enter the main wash phase.

[0148] Further, in some embodiments, according to the current washing stage of the fabric treatment device, controlling the water level of the fabric treatment drum after the filter self-cleaning program is run includes:

[0149] If the current washing stage is the main wash stage, the water level in the fabric treatment drum is drained to the heating safety water level, and after the water level in the fabric treatment drum is drained to the heating safety water level, water is refilled to the main wash water level to continue the main wash stage until the main wash stage ends.

[0150] Specific, combined Figure 3 As shown, when the fabric treatment equipment runs the main wash stage, it mainly includes the following steps:

[0151] S1: runs to the main wash stage;

[0152] S2: Turn on the circulating spray, and the DC first water pump motor speeds up to n revolutions;

[0153] S21: Read the power value of the first water pump motor within T seconds and calculate the power average value P2;

[0154] S22: Determine whether the power average value P2 is lower than the power during normal spraying; when the power average value P2 is lower than 80% of the water pump motor power P0 during normal spraying, execute the temperature rise determination step S3, otherwise continue the main wash;

[0155] S3: Provide a stable current to the first water pump motor and read the temperature of the spray water pump motor winding;

[0156] S31: Calculate the motor temperature rise value W2 for the specified time T2 seconds

[0157] S32: Determine whether the motor temperature rise value W2 is greater than the temperature rise value during normal spraying. If the motor temperature rise value W2 is greater than the preset temperature rise value, execute step S4, otherwise continue the main wash;

[0158] S4: Execute filter cleaning control;

[0159] S41: Close the circulating spray, open the second water pump, discharge to the heating safety water level, and close the second water pump;

[0160] S42: Open the water inlet valve to replenish water to the main wash water level and continue to open the circulation spray

[0161] S5: Continue normal main wash until the end.

[0162] Further, such as Figure 4 and Figure 5 As shown, the second aspect of the embodiment of the present application further provides a fabric processing device, comprising:

[0163] A fabric treatment drum 10, the fabric treatment drum 10 is used to contain clothes to be treated;

[0164] The circulating spray device 20 includes a cleaning chamber with a filter screen 201 built in, and the cleaning chamber 202 has a water inlet 2021 and a first drain outlet 2022 connected to the fabric treatment cylinder 10;

[0165] A first water pump 401, when the first water pump 401 is running, the washing water in the fabric treatment drum 10 can be discharged into the cleaning chamber 202, and then discharged from the cleaning chamber 202 back to the fabric treatment drum 10 after being filtered by the filter 201;

[0166] The sensor and the controller are used to obtain the operating parameters of the first water pump 401 when it is running, and the controller is used to determine whether the filter screen 201 is dirty and blocked according to the operating parameters.

[0167] In the embodiment of the present application, a filter screen 20 is provided in the circulating spray device 20 to filter the circulating spray water. At the same time, by obtaining the operating parameters of the first water pump 401, it can be determined whether the filter screen 201 is dirty or blocked, so that the filter screen 201 can be cleaned in time, thereby avoiding the problem of poor circulating spray washing effect of the fabric processing equipment due to the filter screen 201 being dirty and blocked and not being cleaned in time.

[0168] Further, in some embodiments, the circulating spray device 20 further includes a cleaning member 203 rotatably disposed in the cleaning chamber;

[0169] When water enters the cleaning chamber 202 , the cleaning member 203 can rotate under the impact of the incoming water flow, and clean the surface of the filter screen 201 by contacting with the filter screen 201 during the rotation.

[0170] In the embodiment of the present application, a cleaning member 203 capable of rotating under the impact of water flow is provided in the cleaning chamber 202. The surface of the filter 201 can be cleaned by the rotation of the cleaning member 203, thereby achieving a self-cleaning effect of the filter 201 through the drainage operation of the fabric treatment cylinder.

[0171] Further, such as Figure 5 As shown, in some embodiments, the filter screen 201 includes a cylindrical mesh structure built into the cleaning chamber 202, and the filter screen 201 of the cylindrical mesh structure is surrounded by a cavity communicating with the cleaning chamber 202 through the filter mesh holes, and the cavity is communicated with the first drain port 2022;

[0172] The cleaning member 203 includes a scraper strip 2031 which is sleeved on the outer periphery of the cylindrical filter screen 201 and is in contact with the outer peripheral surface of the filter screen;

[0173] When water enters the cleaning chamber 202 , the scraper bar 2031 can be driven to rotate around the outer periphery of the filter screen 201 to scrape and clean the outer peripheral surface of the filter screen 201 .

[0174] That is, when the washing water in the fabric treatment drum 10 enters the cleaning chamber 202 , the cleaning member 203 with the scraping bar 2031 in the cleaning chamber 202 rotates under the impact of the water flow, thereby scraping and cleaning the outer peripheral surface of the filter screen 201 .

[0175] Furthermore, in some embodiments, the cleaning member 203 further includes:

[0176] An impeller 2032 is built into the cleaning chamber 202, and the impeller 2032 and the scraper bar 2031 are connected together;

[0177] When water enters the cleaning chamber 202 , the impeller 2032 can rotate under the impact of the incoming water flow, so as to drive the scraper bar 2031 to rotate around the outer periphery of the filter screen 201 to scrape and clean the outer peripheral surface of the filter screen 201 .

[0178] That is, when the washing water in the fabric treatment drum 10 enters the cleaning chamber 202 , the water flow impacts the impeller 2032 to rotate it, and the impeller 2032 drives the scraper 2031 to rotate, thereby achieving a cleaning effect on the surface of the filter screen 201 .

[0179] Further preferred:

[0180] The impeller is an inclined impeller, which can rotate automatically under the impact of the water flow at the water inlet. The cleaning part also includes a cleaning part motor that can be connected to the impeller. A clutch structure is provided between the cleaning part motor and the impeller shaft, and the clutch structure can be used to control the connection and disconnection of the cleaning part motor and the shaft. When the filter is seriously dirty and blocked, in order to avoid overloading the cleaning part motor, the clutch mechanism can be controlled to disconnect the cleaning part motor and the shaft, so that the impeller rotates completely under the action of the water flow to form a negative pressure on the water inlet, thereby facilitating the rapid inflow and discharge of the stored sewage.

[0181] It may be further preferred that the drain valve at the second drain outlet can be controlled to switch on and off according to preset rules. For example, when the filter is dirty and the drainage is seriously blocked, the drain valve can be controlled to switch on and off intermittently with a certain opening and stopping rhythm, so as to produce a turbulent effect on the water in the processing chamber, so that more dirt can be discharged with the oscillation of the water flow.

[0182] Further, in some embodiments, Figure 4 and Figure 5 As shown, the cleaning chamber 202 also has a second drain port 2023;

[0183] Fabric processing equipment also includes:

[0184] A water inlet pipe 30, which is connected between the water inlet 2021 of the cleaning chamber 202 and the bottom of the fabric treatment drum 10, and is used to receive washing water from the fabric treatment drum 10;

[0185] A first drain pipe 40, which is connected between the first drain port 2022 of the cleaning chamber 202 and the top of the fabric treatment drum 10, and is used to drain the filtered washing water in the cleaning chamber 202 back into the fabric treatment drum;

[0186] A second drain pipe 50, the second drain pipe 50 is connected to the second drain port 2023 of the cleaning chamber 202, and is used to drain water in the cleaning chamber 2023;

[0187] The water inlet pipe 30, the first drain pipe 40 and the second drain pipe 50 can be controlled to open individually.

[0188] Further, in some embodiments, a first water pump 401 is provided on the first drain pipe 40 or at the first drain port 2022 , and the first water pump 401 is used to pump the washing water in the cleaning chamber 202 into the fabric treatment drum 10 ;

[0189] A second water pump 402 is provided on the second drain pipe 50 or at the second drain port 2023 for discharging the washing water in the cleaning chamber 202 out of the fabric treatment device;

[0190] The fabric treatment apparatus further comprises a main wash water pipe 60 having a water inlet valve, and wash water can be injected into the fabric treatment tub 10 through the main wash water pipe 60 when the water inlet valve is opened.

[0191] Furthermore, in any of the above embodiments, the fabric processing device is a drum washing machine or a drum washer-dryer.

[0192] In summary, the embodiments of the present application provide a device with a circulating spray filter self-cleaning function and a control method for filter cleaning thereof, which can intelligently determine the accumulation of hair debris in the filter unit filter by the water pump power and the water pump temperature rise, and can automatically clean the filter in a timely manner by arranging a cleaning component 203 in the circulating spray device 20, thereby achieving the effect of intelligently identifying the dirt and blockage of the filter 201 and intelligently cleaning the filter 201.

[0193] In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The steps shown in the relevant flow chart can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flow chart, in some cases, the steps shown or described can be executed in an order different from that here. In other words, the order of steps described in the foregoing embodiments is only an example, and it is also within the scope of protection of the embodiments of the present application to reasonably adjust the order of steps based on the content of the embodiments of the present application.

[0194] The sequence of serial numbers or introduction of the embodiments of the present application is for description only and does not represent the superiority or inferiority of the embodiments.

[0195] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0196] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for treating filter blockage of a fabric processing device, characterized in that: The fabric treatment device comprises a fabric treatment drum (10) and a circulating spray device (20); the fabric treatment drum (10) and the circulating spray device (20) are connected to form a circulating spray flow path; a first water pump (401) and a filter screen (201) are provided on the circulating spray flow path; when the first water pump (401) is in operation, washing water can circulate in the circulating spray flow path, so that the washing water can be discharged from the fabric treatment drum (10) and then filtered by the filter screen (201) and discharged back into the fabric treatment drum (10); The filter screen dirty blockage treatment method comprises: When the first water pump (401) is running, obtaining operating parameters of the motor of the first water pump (401), and judging whether the operating parameters meet the requirements, wherein the operating parameters of the motor of the first water pump include at least one of motor output power and motor input current; If yes, it is determined that the filter screen (201) is not dirty or blocked; If not, it is determined that the filter screen (201) is dirty or clogged.

2. The method for treating filter screen clogging according to claim 1, characterized in that: The obtaining of the operating parameters of the motor of the first water pump (401) and determining whether the operating parameters meet the requirements comprises: Obtaining whether multiple operating parameters of the motor of the first water pump (401) meet the requirements; If yes, it is determined that the filter screen (201) is not dirty or blocked; If not, it is determined that the filter screen (201) is dirty or clogged.

3. The method for treating filter screen fouling according to claim 2, characterized in that: The multiple operating parameters of the first water pump (401) motor include at least an average power value of the first water pump (401) motor within a first preset time length, and a temperature rise value of the first water pump (401) motor within a second preset time length.

4. The method for treating filter screen fouling according to claim 3, characterized in that: The method for obtaining whether multiple operating parameters of the motor of the first water pump (401) are not satisfactory comprises: Determining whether an average power value of the first water pump (401) motor within a first preset time period is less than a preset power value, and whether a temperature rise value of the first water pump (401) motor within a second preset time period is greater than a preset temperature rise value; If the average power value of the first water pump (401) motor within the first preset time period is less than the preset power value, and the temperature rise value of the first water pump (401) motor within the second preset time period is greater than the preset temperature rise value, then multiple operating parameters of the first water pump (401) motor do not meet the requirements, and it is determined that the filter screen (201) is dirty and blocked; If the average power value of the first water pump (401) motor within the first preset time period is not less than the preset power value, and / or the temperature rise value of the first water pump (401) motor within the second preset time period is not greater than the preset temperature rise value, it is determined that the filter screen (201) is not dirty or blocked.

5. The method for treating filter screen clogging according to claim 4, characterized in that: If the average power value of the first water pump (401) motor within the first preset time period is less than the preset power value, and the temperature rise value of the first water pump (401) motor within the second preset time period is greater than the preset temperature rise value, then multiple operating parameters of the first water pump (401) motor do not meet the requirements, and it is determined that the filter screen is dirty and blocked, including: First, obtaining whether the average power value of the first water pump (401) motor within a first preset time period is less than a preset power value; If the average power value of the first water pump (401) motor within the first preset time period is less than the preset power value, further obtaining whether the temperature rise value of the first water pump (401) motor within the second preset time period is greater than the preset temperature rise value; If the temperature rise value of the motor of the first water pump (401) within the second preset time period is greater than the preset temperature rise value, it is determined that the filter screen (201) is dirty and clogged.

6. The method for treating filter screen fouling according to any one of claims 1 to 5, characterized in that: The filter screen dirty blockage treatment method also includes: When the rotation speed of the motor of the first water pump (401) reaches a first preset rotation speed, obtaining operating parameters of the motor of the first water pump (401); The first preset speed is between 1000r / min-10000r / min.

7. The method for treating filter screen clogging according to claim 4 or 5, characterized in that: The first water pump (401) motor comprises a motor winding; The obtaining of whether the temperature rise value of the motor of the first water pump (401) within the second preset time period is greater than a preset temperature rise value comprises: Obtaining whether the temperature rise value of the motor winding of the first water pump (401) within a second preset time period is greater than a preset temperature rise value.

8. The method for treating filter screen fouling according to any one of claims 1 to 5, characterized in that: The circulating spray device (20) comprises a cleaning chamber (202) in which the filter (201) is built, and the fabric processing device also has a filter self-cleaning program. Under the filter self-cleaning program, the circulating spray washing is stopped and the fabric processing cylinder (10) is controlled to drain water, and the washing water can be discharged into the cleaning chamber (202) and discharged from the cleaning chamber (202) after being filtered by the filter (201); the circulating spray device (20) also comprises a cleaning member (203) rotatably arranged in the cleaning chamber (202), wherein the cleaning member (203) can rotate under the impact of the water flow entering the cleaning chamber (202), and clean the surface of the filter (201) by contacting with the filter (201) during the rotation; The filter screen dirty blockage treatment method also includes: When it is determined that the filter screen (201) is dirty and clogged, the fabric processing device is controlled to run a filter screen self-cleaning program, and according to the current washing stage of the fabric processing device, the water level in the fabric processing drum (10) is controlled after the filter screen self-cleaning program is run; The washing stage includes a pre-wash stage and a main wash stage.

9. The method for treating filter screen clogging according to claim 8, characterized in that: The method of controlling the water level of the fabric treatment drum after the filter self-cleaning program is run according to the current washing stage of the fabric treatment device comprises: If the current washing stage is the pre-wash stage, the water in the fabric treatment drum (10) is drained to the empty drum water level.

10. The method for treating filter screen fouling according to claim 9, characterized in that: The filter screen dirty blockage treatment method also includes: When the filter self-cleaning program is executed in the pre-washing stage, the drainage time of the fabric processing device when the washing water in the fabric processing drum (10) is drained to the empty drum water level is calculated, and based on the drainage time, it is determined whether to re-run the circulating spray washing in the pre-washing stage to judge whether the filter is still dirty and blocked.

11. The method for treating filter screen fouling according to claim 10, characterized in that: The determining whether to re-run the cyclic spray washing in the pre-washing stage according to the drainage time to judge whether the filter screen is still dirty and blocked includes: If the drainage time exceeds the preset drainage time, the pre-wash phase ends and the main wash phase begins; If the drainage time does not exceed the preset drainage time, re-run the circulating spray washing in the pre-wash stage, and determine whether the filter is still dirty or blocked under the circulating spray washing.

12. The method for treating filter screen fouling according to claim 8, characterized in that: The method of controlling the water level of the fabric treatment drum after the filter self-cleaning program is run according to the current washing stage of the fabric treatment device comprises: If the current washing stage is the main wash stage, the water level in the fabric treatment drum is drained to the heating safety water level, and after the water level in the fabric treatment drum is drained to the heating safety water level, water is refilled to the main wash water level to continue the main wash stage until the main wash stage ends.

13. A fabric processing device, characterized in that: include: A fabric treatment drum (10), the fabric treatment drum (10) being used to contain clothes to be treated; A circulating spray device (20), the circulating spray device (20) comprising a cleaning chamber with a built-in filter screen (201), the cleaning chamber (202) having a water inlet (2021) and a first water outlet (2022) connected to the fabric treatment cylinder (10); a first water pump (401), which, when in operation, enables the washing water in the fabric treatment drum (10) to be discharged into the cleaning chamber (202), and then discharged from the cleaning chamber (202) back into the fabric treatment drum (10) after being filtered by the filter net (201); A sensor and a controller, wherein the sensor is used to obtain operating parameters of the first water pump (401) when it is in operation, and the controller is used to determine whether the filter screen (201) is dirty or blocked based on the operating parameters.

14. The fabric processing device according to claim 13, characterized in that: The circulating spray device (20) further comprises a cleaning member (203) rotatably disposed in the cleaning chamber; When water enters the cleaning chamber (202), the cleaning element (203) can rotate under the impact of the incoming water flow, and clean the surface of the filter screen (201) by contacting the filter screen (201) during rotation.

15. The fabric processing device according to claim 14, characterized in that: The filter screen (201) comprises a columnar mesh structure built into the cleaning chamber (202); the filter screen (201) of the columnar mesh structure is arranged to form a cavity communicating with the cleaning chamber (202) through filter mesh holes; the cavity is communicated with the first drain port (2022); The cleaning member (203) comprises a scraper strip (2031) sleeved on the outer periphery of the cylindrical filter screen (201) and in contact with the outer peripheral surface of the filter screen; The scraper bar (2031) can be driven to rotate around the periphery of the filter screen (201) when water enters the cleaning chamber (202), so as to scrape and clean the outer peripheral surface of the filter screen (201).

16. The fabric processing device according to claim 15, characterized in that The cleaning member (203) further comprises: an impeller (2032) built into the cleaning chamber (202), the impeller (2032) and the scraper bar (2031) being connected together; When water enters the cleaning chamber (202), the impeller (2032) can rotate under the impact of the incoming water flow, thereby driving the scraper (2031) to rotate around the periphery of the filter screen (201) to scrape and clean the outer peripheral surface of the filter screen (201).

17. The fabric processing device according to claim 13, characterized in that: The cleaning chamber (202) further comprises a second drainage port (2023); The fabric processing device also includes: a water inlet pipe (30), the water inlet pipe (30) being connected between the water inlet (2021) of the cleaning chamber (202) and the bottom of the fabric treatment drum (10), and being used for receiving washing water from the fabric treatment drum (10); a first drain pipe (40), the first drain pipe (40) being connected between the first drain port (2022) of the cleaning chamber (202) and the top of the fabric treatment drum (10), and being used for draining the filtered washing water in the cleaning chamber (202) back into the fabric treatment drum; a second drainage pipe (50), the second drainage pipe (50) being connected to a second drainage port (2023) of the cleaning chamber (202) and being used for draining water in the cleaning chamber (2023); The water inlet pipe (30), the first drainage pipe (40) and the second drainage pipe (50) can all be controlled to open individually.

18. The fabric processing device according to claim 17, characterized in that The first water pump (401) is provided on the first drainage pipe (40) or at the first drainage port (2022), and the first water pump (401) is used to pump the washing water in the cleaning chamber (202) into the fabric treatment drum (10); A second water pump (402) is provided on the second drainage pipe (50) or at the second drainage port (2023), and the second water pump (402) is used to discharge the washing water in the cleaning chamber (202) out of the fabric treatment device; The fabric treatment device further comprises a main wash water pipe (60) having a water inlet valve, and when the water inlet valve is opened, wash water can be injected into the fabric treatment drum (10) through the main wash water pipe (60).

19. The fabric processing device according to claim 13, characterized in that: The fabric processing device is a drum-type washing machine or a drum-type washer-dryer.

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