Automatic cleaning system and method for filter screen of dish-washing machine and dish-washing machine

Abstract

The invention provides an automatic cleaning system and method for a dish-washing machine filter screen and a dish-washing machine. The automatic cleaning system comprises the steps that the temperature value of filter screen washing water is collected, and the turbidity value of the filter screen washing water is detected; cleaning parameters are determined according to the temperature value and the turbidity value; and controlling a water inlet module, a flushing module and a drainage module to sequentially execute water inlet operation, filter screen flushing operation and washing water drainage according to the cleaning parameters so as to clean the filter screen in the dish washing machine. According to the system and the method disclosed by the invention, the temperature value and the turbidity value are detected, and the cleaning parameters are determined according to the temperature value and the turbidity value, so that the filter screen is automatically cleaned, the complexity caused by dismounting and cleaning the filter screen is solved, and the cleaning efficiency is improved; meanwhile, the situation that the buckling position of the filter screen is damaged possibly due to frequent disassembly and assembly is avoided, and convenience is provided for normal use of the dish washing machine.

Description

Technical Field

[0001] The present invention relates to the technical field of smart home devices, and in particular to an automatic cleaning system and method for a dishwasher filter and a dishwasher. Background Art

[0002] Currently, more and more families use dishwashers to reduce the labor of dishwashing. Especially for hotels or restaurants, the convenience and speed brought by dishwashers have greatly improved the efficiency of dishwashing.

[0003] The existing dishwasher is equipped with a filter, which is used to filter food residues and impurities and protect the cleanliness and performance of the machine. After the dishwasher is used, some food residues and foreign matter often adhere to the filter. If it is not cleaned for a long time, it is easy to breed bacteria and pose a health hazard. Therefore, the filter needs to be disassembled and cleaned regularly. However, the process of disassembly, cleaning and installation not only brings trouble to the user, but also easily causes damage to the filter, thereby affecting the performance of the dishwasher.

[0004] Therefore, the prior art needs to be further improved. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide an automatic cleaning system and method for a dishwasher filter and a dishwasher, so as to solve the defect that the filter in the dishwasher in the prior art is inconvenient to clean.

[0006] In a first aspect, the present application provides an automatic cleaning device for a filter screen of a dishwasher, which includes: a main controller arranged in the dishwasher and a control module, a water inlet module, a flushing module, a drainage module, a temperature detection module and a turbidity detection module arranged on the main controller;

[0007] The temperature detection module is used to collect the temperature value of the washing water in the dishwasher after the washing operation is performed; the turbidity detection module is used to detect the turbidity value of the washing water in the dishwasher after the washing operation is performed;

[0008] The control module receives the temperature value and the turbidity value, determines the cleaning parameters according to the received temperature value and the turbidity value, and controls the water inlet module, the flushing module and the drainage module to perform the water inlet operation, the filter flushing operation and the discharge of the washing water in sequence according to the cleaning parameters, so as to realize the cleaning of the filter in the dishwasher.

[0009] Optionally, the control module further includes: a computing unit and a central controller;

[0010] The calculation unit is used to determine the cleaning parameters according to the temperature value and the turbidity value, and send the cleaning parameters to the central controller; the cleaning parameters include: the water inlet time and water inlet volume corresponding to the water inlet module, the drainage time and drainage volume corresponding to the drainage module, and the number of flushing times and flushing duration corresponding to the flushing module.

[0011] The central controller controls the water inlet module, the drainage module and the flushing module to flush the filter in the dishwasher according to the cleaning parameters.

[0012] Optionally, the rule for determining the cleaning parameters according to the temperature value and the turbidity value is: the higher the temperature value, the fewer the flushing times; and the lower the turbidity value, the fewer the flushing times.

[0013] Optionally, the water inlet module is a water inlet valve, and the drainage module is a drainage pump; the flushing module includes a flushing motor, and the flushing motor is connected to the filter net, and is used to drive the filter net to rotate and perform a flushing operation according to the flushing time and number contained in the received cleaning parameters.

[0014] Optionally, a washing module is further provided on the main controller, and the temperature detection module and the turbidity detection module are connected to the washing module to obtain the temperature value and the turbidity value of the washing module after performing a dishwashing operation.

[0015] In a second aspect, the present application provides an automatic cleaning method for a dishwasher filter, wherein the automatic cleaning device is applied to the dishwasher filter, and the automatic cleaning method comprises:

[0016] Collect the temperature value of washing water and detect the turbidity value of washing water;

[0017] Determine cleaning parameters based on temperature and turbidity values;

[0018] According to the cleaning parameters, the water inlet module, the washing module, the rinsing module and the drainage module are controlled to perform water inlet operation, filter rinsing operation and discharge washing water in sequence, so as to realize the cleaning of the filter in the dishwasher.

[0019] Optionally, the step of determining cleaning parameters according to the temperature value and the turbidity value includes:

[0020] Determine the immersion coefficient based on the temperature value;

[0021] Determine the turbidity grade based on the turbidity value;

[0022] Determine the cleaning level based on the immersion coefficient and turbidity level;

[0023] Get the corresponding cleaning parameters according to the cleaning level.

[0024] Optionally, the step of determining the cleaning level according to the immersion coefficient and the turbidity level includes:

[0025] The immersion coefficient and the turbidity level are weighted according to a preset weighting coefficient to obtain a weighted value;

[0026] The weighted value is compared with the range value corresponding to each cleaning level to obtain the cleaning level corresponding to the range of the weighted value.

[0027] Optionally, the cleaning parameters include: water inlet time and water inlet volume corresponding to the water inlet module, drainage time and drainage duration corresponding to the drainage module, and rinsing time and rinsing duration corresponding to the rinsing module;

[0028] The steps of controlling the water inlet module, the flushing module and the drainage module to sequentially perform water inlet operation, filter screen flushing operation and drain flushing water according to the cleaning parameters to realize the cleaning of the filter screen in the dishwasher include:

[0029] In response to the filter cleaning instruction, the temperature and turbidity values ​​of the washing water after the washing and heating operations are collected;

[0030] Determine whether the temperature value and turbidity value of the washing water after the washing and heating operations meet the first preset condition. If so, start the washing parameter corresponding to the first preset condition to perform the flushing operation and drain the water, and the filter cleaning is completed;

[0031] Alternatively, it is determined whether the temperature and turbidity of the washing water after the washing and heating operations meet the second preset condition. If so, the washing parameters corresponding to the second preset condition are activated to perform a flushing operation and drain the water, and the filter cleaning is completed;

[0032] Alternatively, determine whether the temperature and turbidity values ​​of the washing water after the washing and heating operations meet the second preset condition. If so, start the cleaning parameters corresponding to the second preset condition to perform a flushing operation and drain the water, and the filter cleaning is completed.

[0033] In a third aspect, the present application further provides a dishwasher, which includes an automatic cleaning device for the dishwasher filter as described above.

[0034] Beneficial effect: The present invention provides an automatic cleaning system, method and dishwasher for a dishwasher filter, which collects the temperature value of the filter washing water and detects the turbidity value of the filter washing water; determines the cleaning parameters according to the temperature value and the turbidity value; and controls the water inlet module, the washing module, the rinsing module and the drainage module to perform the water inlet operation, the filter rinsing operation and the washing water discharge in sequence according to the cleaning parameters, so as to realize the cleaning of the filter in the dishwasher. The system and method disclosed in this embodiment detect the temperature value and the turbidity value, and determine the cleaning parameters according to the temperature value and the turbidity value to realize the automatic cleaning of the filter, which solves the tediousness caused by the need to disassemble and clean the filter, improves the cleaning efficiency, and also avoids the damage to the filter buckle that may be caused by frequent disassembly and installation, which provides convenience for the normal use of the dishwasher. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of the automatic cleaning system of the dishwasher filter provided by the present invention;

[0036] Figure 2 It is a flow chart of the overall steps of the automatic cleaning method of the dishwasher filter provided by the present invention;

[0037] Figure 3 It is a flowchart of a specific embodiment of the automatic cleaning method provided by the present invention;

[0038] Figure 4 It is a flowchart of the steps of a specific application embodiment of the automatic cleaning method for the dishwasher filter provided by the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer and more specific, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] At present, with the development of intelligent household appliances, the use of dishwashers is becoming more and more popular, and users feel the speed and convenience brought by dishwashers. However, there are still some problems in the use of dishwashers. For example, after the dishwasher is used, some food residues and foreign matter will adhere to the filter net in the sink. If the filter net is not cleaned for a long time, it will cause odor and bacteria to be generated in the filter net, which is not conducive to the health of users. In addition, the filter net is a key component for intercepting food residues, oil particles and other impurities. It is easy to be blocked after long-term use, affecting the water circulation efficiency inside the dishwasher, thereby reducing the washing effect.

[0041] Currently, the filtration system of a dishwasher includes: a sink, a flat filter, a coarse filter, and a fine filter. The sink is fixed at the bottom of the inner tank, and there is a buckle at the bottom of the sink that cooperates with the coarse filter bracket. The coarse filter is made of injection molding, and there is a rotating buckle at the bottom that is fixed to the sink. The fine filter is installed or hung on the coarse filter bracket, and the sink buckle and the coarse filter buckle are assembled together by mechanical screwing.

[0042] When using a dishwasher, if the user wants to keep the filter clean, the filter usually needs to be cleaned regularly. Generally, the filter is removed from the dishwasher, and then installed and fixed after cleaning. The removal and cleaning process is cumbersome, and because the filter is mechanically screwed and fixed to the sink, and the filter and sink are both injection molded, multiple disassembly and assembly can easily cause the buckle between the sink and the filter to deform or damage. And if the assembly between the filter and the sink is wrong, for example: the bottom of the filter is tilted, it is easy for food residues and foreign matter to enter key components such as the washing pump and spray arm, affecting the washing effect.

[0043] In order to overcome the above problems, the present invention provides an automatic cleaning system, method and dishwasher for a dishwasher filter, which collects the temperature value of the filter washing water and detects the turbidity value of the filter washing water; determines the cleaning parameters according to the temperature value and the turbidity value; and controls the water inlet module, the flushing module and the drainage module to perform the water inlet operation, the filter flushing operation and the discharge of the washing water in sequence according to the cleaning parameters, so as to realize the cleaning of the filter in the dishwasher. The system and method disclosed in this embodiment determine the cleaning parameters corresponding to the current filter according to the temperature value and the turbidity value, and automatically clean the filter based on the cleaning parameters, which not only solves the tediousness caused by the disassembly and cleaning of the filter, and improves the cleaning efficiency, but also avoids the damage to the filter buckle caused by frequent disassembly and installation, and provides convenience for the cleaning of the dishwasher after use.

[0044] The automatic cleaning system and method for the dishwasher filter and the dishwasher provided in this embodiment are further described in detail below in conjunction with the accompanying drawings.

[0045] In a first aspect, the present application provides an automatic cleaning device for a dishwasher filter, such as Figure 1 As shown, the dishwasher comprises: a main controller arranged in the dishwasher, a control module arranged on the main controller, a water inlet module, a flushing module, a drainage module, a temperature detection module and a turbidity detection module.

[0046] The temperature detection module is used to collect the temperature value of the washing water in the dishwasher after the washing operation is performed; the turbidity detection module is used to detect the turbidity value of the washing water in the dishwasher after the washing operation is performed.

[0047] The control module receives the temperature value and the turbidity value, determines the cleaning parameters according to the received temperature value and the turbidity value, and controls the water inlet module, the flushing module and the drainage module to perform the water inlet operation, the filter flushing operation and the washing water discharge operation in sequence according to the cleaning parameters, so as to realize the cleaning of the filter in the dishwasher.

[0048] Specifically, the method for automatically cleaning the filter screen in this embodiment is to automatically collect the temperature and turbidity of the washing water after the dishwasher performs the washing operation of the dishes, and determine whether to start the self-cleaning operation program according to the collected temperature value and turbidity value, and determine the cleaning parameters of the self-cleaning.

[0049] Furthermore, a temperature detection module for collecting temperature values ​​and a turbidity detection module for collecting turbidity values ​​are both arranged in a washing module in the dishwasher, or the temperature detection module and the turbidity detection module are connected to the washing module, for respectively collecting the temperature and turbidity value of the washing water in the washing module after performing a washing operation.

[0050] The control module located on the main controller obtains the temperature value collected by the temperature detection module and the turbidity value collected by the turbidity detection module, and determines the cleaning parameters according to the collected temperature value and turbidity value, and controls the above-mentioned water inlet module, flushing module and drainage module according to the determined cleaning parameters, and performs water inlet operation, flushing operation and drainage operation in sequence, thereby realizing the cleaning of the filter.

[0051] In one implementation, the temperature detection module is a temperature sensor, and the turbidity detection module is a turbidity sensor. The water inlet module is a water inlet valve, which controls the start and stop of water inlet into the dishwasher by opening or closing. The drainage module is a drainage pump, which executes the received instructions to drain the water in the dishwasher. The heating module is a heater, which is used to heat the washing water to increase the temperature of the washing water, thereby achieving a better washing effect.

[0052] Furthermore, the control module also includes: a computing unit and a central controller.

[0053] The calculation unit is used to determine the cleaning parameters according to the temperature value and the turbidity value, and send the cleaning parameters to the central controller; the cleaning parameters include: the water inlet time and water inlet volume corresponding to the water inlet module, the drainage time and drainage volume corresponding to the drainage module, and the number of flushing times and flushing duration corresponding to the flushing module.

[0054] The central controller controls the water inlet module, the drainage module and the flushing module to flush the filter in the dishwasher according to the cleaning parameters.

[0055] Specifically, during implementation, the acquired temperature value and turbidity value are calculated by an added calculation unit to determine the cleaning parameters corresponding to the current cleaning operation.

[0056] In the specific implementation, the higher the temperature value corresponding to the washing water, the higher the cleanliness of the washing water during washing, and the less stains remaining on the filter. Therefore, when the temperature value is high, the filter may be relatively clean, and the higher the turbidity value of the washing water, the more stains may remain on the filter, and the filter may need to be rinsed multiple times to be cleaned. In this embodiment, the rule for determining the cleaning parameters based on the temperature value and the turbidity value is as follows: the higher the temperature value, the fewer the corresponding rinse times; the lower the turbidity value, the fewer the corresponding rinse times, and vice versa, the lower the temperature value, the more the corresponding rinse times, and the higher the turbidity value, the higher the corresponding rinse times. Therefore, based on the size of the temperature value and the turbidity value, a more suitable cleaning parameter can be determined to achieve the cleaning of the filter.

[0057] In a specific embodiment, in combination Figure 1 As shown, the water inlet module is a water inlet valve, and the drainage module is a drainage pump; the flushing module includes a flushing motor, and the flushing motor is connected to the filter screen to drive the filter screen to rotate and perform a flushing operation according to the flushing time and number of times contained in the received cleaning parameters.

[0058] The present invention structurally utilizes a motor installed at the bottom of the water tank, a mechanical seal between the motor and the water tank is waterproof, and a threaded fit is provided between the motor shaft and the fine filter. The turbidity value stored in the memory and the high-temperature water soaking after rinsing are detected by the turbidity sensor, and the control motor set in the washing program is started to rotate, and the filter screen is driven to rotate by the rotation of the motor, and the centrifugal force generated causes the food residues and foreign matter adhering to the filter screen to separate from the filter screen, and then automatically controls the water inlet valve to inlet water, the drainage pump to drain water, etc. to flush out the residues and foreign matter, thereby keeping the filter screen clean.

[0059] Based on the disclosure of the automatic cleaning system for the dishwasher filter, the present invention also discloses an automatic cleaning method for the dishwasher filter implemented by the automatic cleaning system, such as Figure 2 As shown, the automatic cleaning method comprises:

[0060] Step S1, collecting the temperature value of washing water and detecting the turbidity value of washing water.

[0061] The temperature value of the washing water is collected by using a temperature sensor, and the turbidity value of the washing water is collected by using a turbidity sensor, and the collected temperature value and turbidity value are transmitted to the calculation unit of the control module.

[0062] Specifically, this step is performed during or after the dishwasher performs a washing operation. Since the dishwasher uses a heating module to heat the washing water while performing a washing operation on the dishes, the temperature of the washing water increases during the washing process, and the turbidity also changes. The temperature sensor can directly collect or detect the temperature of the washing water, and the turbidity sensor can directly collect the turbidity of the washing water.

[0063] Step S2: determining cleaning parameters according to the temperature value and the turbidity value.

[0064] The calculation unit determines the cleaning parameters according to the received temperature value and turbidity value. Specifically, the specific steps of determining the cleaning parameters according to the temperature value and turbidity value include:

[0065] First, the immersion coefficient is determined according to the temperature value, and then the turbidity level is determined according to the turbidity value. Then, the cleaning level is determined according to the immersion coefficient and the turbidity level, and finally, the corresponding cleaning parameters are obtained according to the cleaning level.

[0066] Specifically, since the higher the temperature value, the higher the immersion coefficient, there is a positive proportional relationship between the temperature value and the immersion coefficient, and the proportionality coefficient can be obtained through experiments or theoretical analysis, that is, the immersion coefficient at different temperatures can be determined through a large number of experimental measurements. Furthermore, a variable proportionality coefficient can be preset based on empirical values ​​to achieve a more accurate numerical correspondence between the temperature value and the immersion coefficient.

[0067] Furthermore, the turbidity value directly corresponds to the degree of dirtiness, so the turbidity level can be determined according to the detected turbidity values, and the cleaning level can be determined based on the determined turbidity level and the immersion coefficient. In specific implementations, the immersion coefficient and the turbidity level can also be considered comprehensively, and the proportional relationship between the two can be obtained through multiple experiments and theoretical analysis, and then the corresponding cleaning parameters can be determined.

[0068] In this embodiment, the step of determining the cleaning level according to the immersion coefficient and the turbidity level specifically includes:

[0069] The immersion coefficient and the turbidity level are weighted according to the preset weighting coefficient to obtain a weighted value; the weighted value is compared with the range value corresponding to each cleaning level to obtain the cleaning level corresponding to the range of the weighted value.

[0070] The immersion coefficient and the turbidity level are weighted according to a preset weighting coefficient to obtain a weighted value after weighting.

[0071] For example, suppose the original value of the immersion coefficient is a, and the original value of the turbidity level is b. Suppose the weighted coefficient of the immersion coefficient is w1, and the weighted coefficient of the turbidity level is w2. The weighted value W after weighting can be calculated by the following formula:

[0072] W = w1×a+w2×b;

[0073] Where a is the original value of the soaking coefficient; b is the original value of the turbidity level; w1 is the weighting coefficient of the soaking coefficient; w2 is the weighting coefficient of the turbidity level, where w1+w2=1. W is the weighted value after weighting. For example, assuming that the original value of the soaking coefficient is 0.8, the original value of the turbidity level is 3, the weighting coefficient of the soaking coefficient is 0.6, and the weighting coefficient of the turbidity level is 0.4, then the weighted value after weighting is: W=0.6×0.8+0.4×3=0.48+1.2=1.68, so the weighted value after weighting is 1.68.

[0074] In a specific implementation, multiple cleaning levels are set, each cleaning level corresponds to a different number of flushing times, and each cleaning level corresponds to a different weighted value range. For example, 5 cleaning levels are set, and the weighted value ranges corresponding to the five cleaning levels are from low to high. The calculated weighted value is compared with each weighted value range, and the weighted value range in which the calculated weighted value lies is selected. The corresponding cleaning level is determined according to the selected weighted value range, and then the corresponding number of flushing times is determined.

[0075] Step S3, according to the cleaning parameters, the water inlet module, the flushing module and the drainage module are controlled to perform water inlet operation, filter screen flushing operation and discharge washing water in sequence, so as to clean the filter screen in the dishwasher.

[0076] The cleaning parameters in this step include: the water inlet time and water inlet volume corresponding to the water inlet module, the drainage time and drainage volume corresponding to the drainage module, and the number of rinses and rinse duration corresponding to the rinse module.

[0077] Since the corresponding flushing times are calculated in the above steps, the corresponding time required for each flushing can be determined based on the determined flushing times. Since the complete process of each flushing corresponds to a process of water intake, flushing and drainage, the time for each water intake and drainage can be determined based on the flushing times, water intake and drainage. In specific implementation, the water intake, drainage and flushing time can be customized as needed or set by default.

[0078] Combination Figure 3As shown, before the automatic cleaning of the filter net, the dishwasher first starts the washing and heating control program and enters the H31 washing and heating stage. After the washing and heating stage is completed, it enters the H32 temperature and turbidity detection stage to detect the washing water after the washing and heating operation to obtain the temperature value and turbidity value. The number of rinses is determined according to the temperature value and turbidity value, and then the step H33 rinsing stage is executed to rinse the filter net according to the cleaning parameters. After the rinsing operation is completed, the step H34 drainage stage is executed to drain the rinsed water, thereby completing the automatic cleaning process of the filter net.

[0079] Specifically, the steps of controlling the water inlet module, the flushing module and the drainage module to sequentially perform water inlet operation, filter screen flushing operation and drain flushing water according to the cleaning parameters to realize the cleaning of the filter screen in the dishwasher include:

[0080] Step S31, responding to the filter cleaning instruction, collecting the temperature value and turbidity value of the washing water after the washing and heating operations.

[0081] Combination Figure 1 As shown, the user sends an input command for automatic filter cleaning through the display panel of the dishwasher. The main controller analyzes the received input command, identifies it as a filter cleaning command, and responds to the filter cleaning command to collect the temperature value and turbidity value of the washing water after the washing and heating operations.

[0082] Step S32, determine whether the temperature and turbidity of the washing water after the washing and heating operations meet the first preset condition. If so, start the cleaning parameter corresponding to the first preset condition to perform the flushing operation and drain the water, and the filter cleaning is completed. The filter corresponding to the cleaning parameter corresponding to the first preset condition is slightly contaminated.

[0083] Determine whether the temperature value and turbidity value collected in the above steps meet the first preset condition, which is whether the temperature value meets the first preset temperature and whether the turbidity value meets the preset condition. If it meets the first preset condition, it means that the washing water is relatively clean and the number of flushing times required is less. The first preset condition corresponds to the temperature value being higher than the preset temperature and the turbidity value being lower than the preset turbidity. For example, if the temperature value is 60 degrees and the turbidity value is 1NTU, it can be determined that the current filter is in a state of slight pollution.

[0084] Step S33, determine whether the temperature value and turbidity value of the washing water after the washing and heating operations meet the second preset condition. If they meet, start the cleaning parameter corresponding to the second preset condition to perform the flushing operation, drain the water, and the filter cleaning is completed. The second preset condition corresponds to the temperature value being within the preset temperature range, the turbidity value being within the preset turbidity range, and the temperature value and turbidity value being at a medium level, for example: the temperature value is 40 degrees, and the turbidity value corresponds to 5NTU (Nephe l ometric Turbid ity Units), then it is determined that the current second preset condition corresponds to the medium contamination of the filter.

[0085] Step S34: If the temperature and turbidity of the washing water after the washing and heating operations meet the third preset condition, for example, the temperature is 20 degrees and the turbidity is 8 NTU, the cleaning parameter corresponding to the third preset condition is started to perform the flushing operation and drain the water, and the filter cleaning is completed. The filter corresponding to the cleaning parameter corresponding to the third preset condition is severely contaminated.

[0086] The method for automatically cleaning the filter provided in this embodiment can also flexibly adjust the number of flushing times according to the degree of dirtiness of the stains in actual conditions to achieve thorough cleaning of the filter, thus having better flexibility and improving the intelligence of the dishwasher.

[0087] Specifically, combined Figure 4 The step flow chart shown in the specific application provides a more detailed description of the method of this embodiment.

[0088] Step K1, receiving a dishwashing operation instruction or receiving an automatic filter cleaning instruction, and starting the washing or automatic cleaning operation of the dishwasher.

[0089] Step K2, control the water inlet valve to open and perform water inlet operation.

[0090] Step K3: When the water inlet operation is completed and there is a certain amount of water in the dishwasher, the washing and heating operations begin.

[0091] Step K4: After the washing and heating operations, determine whether the current temperature of the washing water is greater than the first set temperature. If it is greater than the first set temperature, execute step K6; otherwise, execute step K5.

[0092] Step K5, using the heating module (heater) to heat during the washing heating process, and heating the temperature value to the first set temperature.

[0093] Step K6, determine whether the turbidity value of the current washing water is less than the set turbidity value, if so, execute step K7, otherwise execute step K9.

[0094] Step K7, perform washing and rinsing once, and proceed to step K8.

[0095] Step K8: After washing and rinsing once, drain the water and the cleaning is finished.

[0096] Step K9, determine whether the temperature of the washing water is greater than the second set temperature, if so, execute step K10, otherwise execute step K12.

[0097] Step K10, perform washing and rinsing twice, and proceed to step K11.

[0098] Step K11: After washing and rinsing once, drain the water and the cleaning is finished.

[0099] Step K12: Since the temperature is lower than the second set temperature and the turbidity value is higher than the set turbidity value, it is determined that the washing water is heavily polluted and needs multiple rinses. Therefore, after the washing is completed, the rinse motor is started once and then step K13 is executed.

[0100] Step K13, perform water intake and drainage once, and then execute step K14.

[0101] Step K14, control washing and rinsing to be repeated 3 times.

[0102] Step K15, drain the washing water and the rinse is finished.

[0103] In specific implementation, the setting values ​​of the first preset temperature and the second preset temperature can be set arbitrarily (60-80°C), wherein the first preset temperature is greater than the second preset temperature, and the higher the temperature, the more complete the soaking, and the dirt can be easily removed from the filter after the motor rotates. The turbidity judgment greater than a certain value can be set arbitrarily (0-5V), and the higher the turbidity value, the cleaner the washing water, and the fewer times the water needs to be flushed. In specific implementation, it can be imagined that the washing motor and the flushing motor can be any type of motor, and the washing motor and the flushing motor can rotate forward or reverse; the rotation time of the washing motor and the flushing motor can be set arbitrarily, and the cleaner the washing water, the shorter the motor startup time.

[0104] The system and method disclosed in the present invention controls the filter motor installed on the bottom water tank of the inner tank to rotate regularly, removes the adhered foreign matter by centrifugal force, and then cleans the filter by soaking, automatic water intake, and drainage, thereby realizing automatic cleaning of the filter. For users, frequent and regular disassembly is unnecessary, making it convenient to use. At the same time, the centrifugal force of the rotating motor is relatively large, and compared with flushing with tap water, the cleaning effect on the filter is better.

[0105] Based on the disclosure of the automatic cleaning system for the dishwasher filter, the present invention further provides a dishwasher, which includes the automatic cleaning device for the dishwasher filter as described above.

[0106] The dishwasher uses the automatic cleaning device provided by the present invention and the automatic cleaning method provided by this embodiment to realize automatic cleaning of the filter screen, thereby improving the intelligence of the dishwasher and providing convenience for users to use the dishwasher.

[0107] The present invention provides an automatic cleaning system and method for a dishwasher filter, and a dishwasher, which collects the temperature value of the filter washing water and detects the turbidity value of the filter washing water; determines the cleaning parameters according to the temperature value and the turbidity value; and controls the water inlet module, the flushing module, and the drainage module to sequentially perform water inlet operation, filter flushing operation, and discharge washing water according to the cleaning parameters, so as to realize the cleaning of the filter in the dishwasher. The system and method disclosed in this embodiment detect the temperature value and the turbidity value, and determine the cleaning parameters according to the temperature value and the turbidity value to realize the automatic cleaning of the filter, which solves the tediousness caused by the need to disassemble and clean the filter, improves the cleaning efficiency, and also avoids the damage to the filter buckle that may be caused by frequent disassembly and installation, which provides convenience for the normal use of the dishwasher.

[0108] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. An automatic cleaning device for a dishwasher filter, characterized in that: include: A main controller arranged in the dishwasher and a control module, a water inlet module, a flushing module, a drainage module, a temperature detection module and a turbidity detection module arranged on the main controller; The temperature detection module is used to collect the temperature value of the washing water in the dishwasher after the washing operation is performed; The turbidity detection module is used to detect the turbidity value of the washing water in the dishwasher after the washing operation is performed; The control module receives the temperature value and the turbidity value, determines the cleaning parameters according to the received temperature value and the turbidity value, and controls the water inlet module, the flushing module and the drainage module to perform the water inlet operation, the filter flushing operation and the discharge of the washing water in sequence according to the cleaning parameters, so as to realize the cleaning of the filter in the dishwasher.

2. The automatic cleaning device for the dishwasher filter according to claim 1, characterized in that: The control module also includes: a computing unit and a central controller; The calculation unit is used to determine the cleaning parameters according to the temperature value and the turbidity value, and send the cleaning parameters to the central controller; the cleaning parameters include: the water inlet time and water inlet volume corresponding to the water inlet module, the drainage time and drainage volume corresponding to the drainage module, and the number of flushing times and flushing duration corresponding to the flushing module; The central controller controls the water inlet module, the drainage module and the flushing module to flush the filter in the dishwasher according to the cleaning parameters.

3. The automatic cleaning device for the dishwasher filter according to claim 2, characterized in that: The rule for determining the cleaning parameters according to the temperature value and the turbidity value is: the higher the temperature value, the fewer the flushing times; the lower the turbidity value, the fewer the flushing times.

4. The automatic cleaning device for a dishwasher filter according to claim 1, characterized in that: The flushing module includes a flushing motor, which is connected to the filter screen and is used to drive the filter screen to rotate and perform a flushing operation according to the flushing time and number of times contained in the received cleaning parameters.

5. The automatic cleaning device for a dishwasher filter according to claim 1, characterized in that: The main controller is also provided with a washing module, and the temperature detection module and the turbidity detection module are connected to the washing module for obtaining the temperature value and the turbidity value of the washing module after performing the dishwashing operation.

6. A method for automatically cleaning a filter screen of a dishwasher, characterized in that: The automatic cleaning device for the dishwasher filter as claimed in claim 1, wherein the automatic cleaning method comprises: Collect the temperature value of washing water and detect the turbidity value of washing water; Determine cleaning parameters based on temperature and turbidity values; According to the cleaning parameters, the water inlet module, the flushing module and the drainage module are controlled to perform water inlet operation, filter screen flushing operation and flushing water discharge in sequence, so as to realize the cleaning of the filter screen in the dishwasher.

7. The automatic cleaning method of the dishwasher filter according to claim 6, characterized in that: The step of determining the cleaning parameters according to the temperature value and the turbidity value comprises: Determine the immersion coefficient based on the temperature value; Determine the turbidity grade based on the turbidity value; Determine the cleaning level based on the immersion coefficient and turbidity level; Get the corresponding cleaning parameters according to the cleaning level.

8. The automatic cleaning method for a dishwasher filter according to claim 7, characterized in that: The step of determining the cleaning level according to the immersion coefficient and the turbidity level comprises: The immersion coefficient and the turbidity level are weighted according to a preset weighting coefficient to obtain a weighted value; The weighted value is compared with the range value corresponding to each cleaning level to obtain the cleaning level corresponding to the range of the weighted value.

9. The automatic cleaning method for a dishwasher filter according to claim 6, characterized in that: The cleaning parameters include: water inlet time and water inlet volume corresponding to the water inlet module, drainage time and drainage volume corresponding to the drainage module, and the number of flushing times and flushing duration corresponding to the flushing module; The steps of controlling the water inlet module, the flushing module and the drainage module to sequentially perform water inlet operation, filter screen flushing operation and drain flushing water according to the cleaning parameters to realize the cleaning of the filter screen in the dishwasher include: In response to the filter cleaning instruction, the temperature and turbidity values ​​of the washing water after the washing and heating operations are collected; Determine whether the temperature value and turbidity value of the washing water after the washing and heating operations meet the first preset condition. If so, start the washing parameter corresponding to the first preset condition to perform the flushing operation and drain the water, and the filter cleaning is completed; Alternatively, it is determined whether the temperature and turbidity of the washing water after the washing and heating operations meet the second preset condition. If so, the washing parameters corresponding to the second preset condition are activated to perform a flushing operation and drain the water, and the filter cleaning is completed; Alternatively, determine whether the temperature and turbidity values ​​of the washing water after the washing and heating operations meet the second preset condition. If so, start the cleaning parameters corresponding to the second preset condition to perform a flushing operation and drain the water, and the filter cleaning is completed.

10. A dishwasher, characterized in that: An automatic cleaning device for a dishwasher filter comprising the filter screen of any one of claims 1 to 5.

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