Dish washing machine filter screen self-cleaning system, dish washing machine and control method of dish washing machine

Abstract

The invention relates to the technical field of household appliances, and discloses a dish-washing machine filter screen self-cleaning system, a dish-washing machine and a control method of the dish-washing machine. The filtering device comprises a filter and a driving part, the filter is rotatably arranged in a water cup of the dish washing machine, and the driving part is connected with the filter and used for driving the filter to rotate; the water cup is provided with a self-cleaning water spraying structure or the filter is provided with a self-cleaning water spraying structure, and the plasma activated water preparation device is communicated with the self-cleaning water spraying structure so as to spray plasma activated water to the filter to sterilize and disinfect the filter. The liquid-phase plasma technology is applied to sterilization and disinfection of the filter of the dish-washing machine, some limitations and defects of an existing dish-washing machine filter screen sterilization method can be overcome, the dish-washing machine filter screen sterilization method has the advantages of being good in sterilization performance, high in sterilization efficiency and the like, and the problem that the existing dish-washing machine filter screen sterilization method is poor in sterilization effect is effectively solved. The sterilization performance is poor, and the sterilization efficiency is low.

Description

Technical Field

[0001] The present invention relates to the technical field of household electrical appliances, and in particular to a dishwasher filter self-cleaning system, a dishwasher and a control method thereof. Background Art

[0002] In order to prevent the residue from flowing into the washing pump or the drain pump and causing the dishwasher to work abnormally, the dishwashers on the market usually add a filter device to the dishwasher water system to filter the residue. However, with the long-term use of the filter device, some grease will accumulate on the filter screen. If it is not cleaned in time, bacteria will breed inside the dishwasher and produce odor. Existing dishwashers generally use high-temperature washing, high-temperature drying and other sterilization methods to sterilize the filter screen, but there are problems such as poor sterilization performance and low sterilization efficiency. Summary of the invention

[0003] In view of this, the present invention provides a dishwasher filter self-cleaning system, a dishwasher and a control method thereof to solve the problem that the dishwasher filter with a filter self-cleaning function in the prior art has poor sterilization performance and low sterilization efficiency.

[0004] In a first aspect, the present invention provides a dishwasher filter self-cleaning system, comprising:

[0005] A plasma activated water preparation device, used for preparing plasma activated water;

[0006] The filter device comprises a filter and a driving component, wherein the filter is rotatably arranged in the water cup of the dishwasher, and the driving component is connected to the filter and is used to drive the filter to rotate;

[0007] A self-cleaning water spraying structure is provided on the water cup or the filter, and the plasma activated water preparation device is connected with the self-cleaning water spraying structure to spray plasma activated water on the filter to sterilize and disinfect it.

[0008] Beneficial effects: The plasma activated water prepared by the plasma activated water preparation device can not only be passed into the inner tank of the dishwasher to disinfect the tableware and other items in the inner tank, but also can be passed into the filter to achieve self-cleaning and disinfection of the filter, remove odors, and improve the disinfection and sterilization effect. In addition, the filter device adopts a filter and a driving component. When the activated water is sprayed on the filter and left to stand for a period of time, the activated water and the bacteria are fully reacted. The filter can be controlled to rotate at a high speed through the driving component, so that the food residues, waste liquid, bacterial debris, etc. attached to the filter can fall off together with the rotation of the filter, which is convenient for subsequent discharge outside the dishwasher. The present invention can overcome some limitations and shortcomings of the existing dishwasher filter sterilization method by applying liquid plasma technology to the sterilization and disinfection of the dishwasher filter, and has the advantages of good sterilization performance and high sterilization efficiency, and effectively solves the problems of poor sterilization performance and low sterilization efficiency of the existing dishwasher filter sterilization method.

[0009] In an optional embodiment, the filter includes a filter body, and the self-cleaning water spray structure includes an atomizing nozzle disposed on the filter body;

[0010] The atomizing nozzle is used to spray the plasma activated water prepared by the plasma activated water preparation device onto the filter body in the form of mist.

[0011] Beneficial effect: The self-cleaning water spray structure adopts the form of an atomizing nozzle, which has an atomizing function, and can disperse the activated water in the form of a small molecule structure on the filter body, further improving the sterilization efficiency.

[0012] In an optional embodiment, the filter further comprises:

[0013] The lifting cup is arranged in the filter body. A plurality of through holes are arranged on the peripheral wall of the filter body. The plasma activated water on the filter body can flow to the lifting cup through the through holes.

[0014] Beneficial effects: The lifting cup set in the filter body can collect most of the residues, reducing the risk of residues clogging the sewer pipe, and through the through holes opened in the peripheral wall of the filter body, the activated water sprayed on the filter body can be sprayed onto the lifting cup through the through holes in the peripheral wall of the filter body, thereby disinfecting the bacteria on the lifting cup and reducing the risk of bacteria breeding and odor generation in the lifting cup.

[0015] In an optional embodiment, the plasma activated water preparation device comprises:

[0016] The liquid storage container is connected to a first liquid outlet pipeline, and the outlet end of the first liquid outlet pipeline is connected to the atomizing nozzle;

[0017] The suction pump is arranged on the first liquid outlet pipeline and is used to suck the plasma activated water generated in the liquid storage container to the filter.

[0018] Beneficial effects: The liquid storage container is connected to a first liquid outlet pipeline, the outlet end of the first liquid outlet pipeline is connected to the water passage chamber, and a suction pump is arranged on the first liquid outlet pipeline. The suction pump can suck the plasma activated water generated in the liquid storage container to the filter, thereby improving the intelligence of the product and enhancing the user experience.

[0019] In an optional embodiment, the atomizing nozzle has a docking port connected to the plasma activated water preparation device;

[0020] The first liquid outlet pipeline has a connection state of being connected to the docking port and a separation state of being separated from the docking port;

[0021] The dishwasher filter self-cleaning system also includes a driving mechanism for driving the first liquid outlet pipeline to switch between a connected state and a separated state.

[0022] Beneficial effect: When the filter self-cleaning mode is started, the driving mechanism controls the first liquid outlet pipeline to switch to a connected state, so that the outlet end of the first liquid outlet pipeline is connected to the docking port, which facilitates the introduction of activated water into the filter. After the activated water is introduced, the first liquid outlet pipeline can be controlled to switch to a separated state, so that the first liquid outlet pipeline is separated from the docking port to avoid interfering with the rotation of the filter.

[0023] In a second aspect, the present invention further provides a dishwasher, comprising:

[0024] Liner;

[0025] In any of the above-mentioned embodiments of the dishwasher filter self-cleaning system, the plasma-activated water prepared by the plasma-activated water preparation device can be selectively introduced into the inner tank or the filter for sterilization and disinfection.

[0026] Beneficial effects: The activated water prepared by the plasma activated water preparation device can not only be passed into the inner tank to disinfect the tableware and other items in the inner tank, but also can be passed into the filter for sterilization and disinfection, which is a one-item-multiple-purposes, thus improving the practicability of the product.

[0027] In a third aspect, the present invention further provides a control method for a dishwasher applicable to any of the above embodiments, the control method comprising:

[0028] Receive filter self-cleaning start signal;

[0029] Enter the filter self-cleaning mode, and control the plasma activated water preparation device to spray the prepared plasma activated water onto the filter;

[0030] After the plasma activated water is sprayed, the filter is controlled to stand for a set time, and then the filter is controlled to rotate at a high speed to remove the residue on the filter.

[0031] Beneficial effect: After spraying the filter, the activated water is partially suspended after being atomized. After being left standing for a period of time, the suspended activated water can be completely attached to the filter body and the lifting cup, so that the activated water can fully contact and react with the bacteria and other microorganisms on the filter, thereby improving the sterilization effect. Moreover, after the filter has been left standing for a set time, it can be controlled to rotate at a high speed, so that the food residues, waste liquid, and bacterial debris attached to the filter can fall off together with the rotation of the filter under the action of centrifugal force, making it easier to discharge outside the dishwasher.

[0032] In an optional embodiment, after the filter is controlled to rotate at a high speed to remove the residue on the filter, the following steps are further performed:

[0033] Control the dishwasher to start the drying mode to dry the entire interior of the dishwasher;

[0034] Alternatively, after rinsing the filter, the dishwasher can be controlled to turn on the drying mode to dry the entire interior of the dishwasher.

[0035] Beneficial effect: After controlling the filter to rotate at a high speed to remove the residue on the filter, the dishwasher turns on the drying mode to dry the entire interior of the dishwasher to avoid the problem of bacteria easily breeding in a humid environment. Alternatively, after rinsing the filter and flushing away the residue, the dishwasher is controlled to turn on the drying mode, which can effectively ensure the internal cleanliness of the dishwasher and further prevent the occurrence of bacteria breeding.

[0036] In an optional implementation, the control method further includes the following steps:

[0037] When receiving a washing instruction from the user, prompt the user whether to turn on the filter self-cleaning mode;

[0038] If the user does not choose to turn on the filter self-cleaning mode, the corresponding washing mode will be run directly according to the user's washing instructions until it ends;

[0039] If the user chooses to turn on the filter self-cleaning mode, the water inlet mechanism of the dishwasher is controlled to feed a set amount of water into the plasma activated water preparation device, and the dishwasher is controlled to prepare activated water while performing the washing process.

[0040] Beneficial effects: When the user starts to select a washing program, the user will be reminded whether to turn on the filter self-cleaning mode, which is more intelligent. If the user chooses to turn on the filter self-cleaning mode, the dishwasher will be controlled to prepare activated water while performing the washing process, saving time.

[0041] In an optional implementation, if the user does not choose to start the filter self-cleaning mode, the following steps are also performed:

[0042] Get the time interval since the last time the user turned on the filter self-cleaning mode;

[0043] If it is determined that the dishwasher has not turned on the filter self-cleaning mode during continuous use for the set time, the filter self-cleaning mode will be automatically turned on after the washing mode ends to disinfect the filter.

[0044] Beneficial effect: When it is determined that the user has not turned on the filter self-cleaning mode for a continuous set interval (such as seven consecutive days), the filter self-cleaning mode will be automatically turned on to disinfect the filter, preventing the user from forgetting to self-clean the filter for a long time, causing serious problems such as the growth of residual bacteria on the filter.

[0045] In an optional implementation, if the user chooses to turn on the filter self-cleaning mode, the following steps are also performed:

[0046] Calculate the time T1 required to prepare plasma activated water;

[0047] Calculate the time T2 required for the washing mode selected by the user;

[0048] When it is judged that T1≤T2, the filter self-cleaning mode is directly entered after the washing mode ends;

[0049] When it is determined that T1>T2, after the current washing mode ends, it is determined whether the user has turned on the washing mode again: if so, the dishwasher is controlled to work normally according to the set washing sequence; if not, it directly enters the filter self-cleaning mode after the current washing mode ends.

[0050] In an optional implementation, after determining that the user chooses to start the filter self-cleaning mode, the following steps are further performed:

[0051] Based on the user's washing instruction, obtaining the washing mode type selected by the user, the washing mode type including a light washing mode and a heavy washing mode;

[0052] When the user selects the light wash mode, the dishwasher is controlled to perform the light wash mode for a set number of times continuously, and then turn on the filter self-cleaning mode;

[0053] When the user selects the heavy wash mode, the amount of plasma-activated water passing through the filter is increased, and / or the filter's standing time is increased, and / or the filter's rotation speed is increased, and / or the filter's rotation time is increased.

[0054] Beneficial effects: Users choose different washing modes to represent different degrees of dirtiness of the dishes. The levels of the filter self-cleaning mode can be divided into light washing mode and heavy washing mode. The heavy washing mode proves that the dishes are more oily and the filter is more easily contaminated by its own bacteria. If the user chooses the heavy washing mode, the amount of activated water sprayed can be increased, for example, from 1L to 2L, or the filter's standing time, rotation speed, rotation time, etc. can be increased to improve the sterilization effect. If the user chooses the light washing mode, it can be adjusted to perform cleaning after multiple times for energy saving. For example, after using the light washing mode five times in a row, the filter self-cleaning mode can be turned on to achieve the purpose of saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 Schematic diagram of the principle of the self-cleaning system of the dishwasher filter in an embodiment of the present invention;

[0057] Figure 2 It is a schematic diagram of the structure of the filtering device in an embodiment of the present invention;

[0058] Figure 3 is a flowchart of a washing mode in an embodiment of the present invention;

[0059] Figure 4 It is a flowchart of a first implementation method of a method for controlling a dishwasher in an embodiment of the present invention;

[0060] Figure 5 It is a flow chart of a second implementation method of the control method of the dishwasher in the embodiment of the present invention;

[0061] Figure 6 1 is a flow chart of a third implementation of the method for controlling a dishwasher in an embodiment of the present invention.

[0062] Description of reference numerals:

[0063] 10. Plasma activated water preparation device; 11. Liquid storage container; 12. Suction pump;

[0064] 20. Filter device; 21. Filter; 211. Filter body; 2110. Through hole; 212. Lifting cup; 22. Driving component; 221. Rotating shaft;

[0065] 30. Three-way valve. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0067] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0068] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0070] Combine the following Figures 1 to 6 , describing an embodiment of the present invention.

[0071] According to an embodiment of the present invention, on the one hand, the present invention provides a dishwasher filter self-cleaning system, comprising a plasma activated water preparation device 10 and a filtering device 20, wherein the plasma activated water preparation device 10 is used to prepare plasma activated water; the filtering device 20 comprises a filter 21 and a driving component 22, the filter 21 is rotatably arranged in a water cup of the dishwasher, the driving component 22 is connected to the filter 21, and is used to drive the filter 21 to rotate; a self-cleaning water spraying structure is provided on the water cup or a self-cleaning water spraying structure is provided on the filter 21, and the plasma activated water preparation device 10 is connected to the self-cleaning water spraying structure to spray plasma activated water on the filter 21 to sterilize and disinfect it.

[0072] In the above embodiment, the plasma activated water prepared by the plasma activated water preparation device 10 can not only be passed into the inner tank of the dishwasher to disinfect the tableware and other items in the inner tank, but also can be passed into the filter 21 to achieve self-cleaning and disinfection of the filter 21, remove odors, and improve the disinfection and sterilization effect. In addition, the filter device 20 adopts the filter 21 and the driving component 22. When the activated water is sprayed on the filter 21 and left to stand for a period of time, the activated water reacts with the bacteria fully. The filter 21 can be controlled to rotate at a high speed by the driving component 22, so that the food residues, waste liquid, bacterial debris, etc. attached to the filter 21 can fall off together with the rotation of the filter screen, which is convenient for subsequent discharge outside the dishwasher. The present invention can overcome some limitations and shortcomings of the existing dishwasher filter screen sterilization method by applying liquid plasma technology to the sterilization and disinfection of the filter 21 of the dishwasher, and has the advantages of good sterilization performance and high sterilization efficiency, and effectively solves the problems of poor sterilization performance and low sterilization efficiency of the existing dishwasher filter screen sterilization method.

[0073] In a more specific implementation of the above embodiment, a self-cleaning water spraying structure is provided on the water cup, and the plasma activated water preparation device 10 is connected to the self-cleaning water spraying structure on the water cup. When the filter screen is in self-cleaning mode, the self-cleaning water spraying structure can be used to spray activated water onto the filter 21. During this process, the driving component 22 can control the filter 21 to rotate at a low speed for at least one cycle, so that the entire circumference of the filter 21 can be sprayed with activated water, so that the activated water is more evenly distributed on the filter 21. In other alternative implementations, multiple self-cleaning water spraying structures can also be provided at intervals on the circumference of the water cup, which can also achieve the effect of spraying activated water onto the entire circumference of the filter 21.

[0074] Optionally, the self-cleaning water spray structure includes a self-cleaning water spray port opened on the water cup, and preferably, a spray head is provided at the self-cleaning water spray port.

[0075] In another more specific implementation of the above embodiment, the self-cleaning water spray structure is arranged on the filter 21. Specifically, the filter 21 includes a filter body 211, and the filter body 211 is cylindrical; the self-cleaning water spray structure includes an atomizing nozzle arranged on the filter body, and the atomizing nozzle is used to spray the plasma activated water prepared by the plasma activated water preparation device in the form of a mist onto the filter body.

[0076] In the above embodiment, the self-cleaning water spray structure adopts the form of an atomizing nozzle, which has an atomizing function and can disperse the activated water in the form of a small molecule structure on the filter body after atomization, thereby further improving the sterilization efficiency.

[0077] In some embodiments, the filter 21 further includes a lifting cup 212 , which is disposed in the filter body 211 . A through hole 2110 is disposed on the peripheral wall of the filter body 211 , and the plasma-activated water on the filter body 211 can flow to the lifting cup 212 through the through hole.

[0078] In the above embodiment, most of the residues can be collected by the lifting cup 212 set in the filter body 211, reducing the risk of the residues clogging the sewer pipe, and through the through holes opened in the peripheral wall of the filter body 211, the activated water sprayed on the filter body can be sprayed onto the lifting cup through the through holes in the peripheral wall of the filter body, thereby disinfecting the bacteria on the lifting cup and reducing the risk of bacteria breeding and odor generation in the lifting cup.

[0079] In some embodiments, the driving component 22 includes a rotating motor, which is connected to the filter body 211. Specifically, a plurality of connecting rods are connected to the lower end of the filter body 211. The plurality of connecting rods converge at the center of the filter body 211 and are connected to a rotating shaft 221, and the rotating motor is connected to the rotating shaft 221.

[0080] In this embodiment, the filter body 211 is connected to the rotary motor through the rotating shaft 221, and the lifting cup 212 is installed in the filter body 211. When disinfection is required, the plasma activated water atomized by the atomizing nozzle can freely fall on the filter body 211, and the filter body 211 rotates under the drive of the rotary motor, and the plasma activated water can be sprayed onto the entire circumference of the lifting cup under the action of centrifugal force to disinfect the lifting cup 212. The filter body 211 can rotate and spray liquid plasma activated water, and has a disinfection function.

[0081] It should be noted that the specific implementation of this embodiment is described in detail by taking the self-cleaning water spray structure as an example of being arranged on the filter 21. Of course, the self-cleaning water spray structure can also be arranged on the water cup, and the activated water is directly sprayed from the self-cleaning water spray structure of the water cup onto the filter 21. The cleaning water spray structure includes a nozzle arranged on the water cup, and the nozzle has an atomization function, and cooperates with the rotation of the filter to realize the activation water being atomized and sprayed on all surfaces of the cup 212 and the filter 21 in a small molecule structure.

[0082] In some embodiments, the plasma-activated water preparation device 10 includes a liquid storage container 11 and a suction pump 12. The liquid storage container 11 is connected to a first liquid outlet pipeline, and the outlet end of the first liquid outlet pipeline is connected to an atomizing nozzle; the suction pump 12 is arranged on the first liquid outlet pipeline, and is used to suck the plasma-activated water generated in the liquid storage container 11 to the filter 21.

[0083] In the above embodiment, the liquid storage container 11 is connected to a first liquid outlet pipeline, the outlet end of the first liquid outlet pipeline is connected to the water passage chamber, and a suction pump 12 is provided on the first liquid outlet pipeline. The suction pump 12 can suck the plasma-activated water generated in the liquid storage container 11 to the filter 21, thereby improving the intelligence of the product and enhancing the user experience.

[0084] Optionally, the liquid storage container 11 is a water tank.

[0085] Furthermore, in some embodiments, the atomizing nozzle has a docking port connected to the plasma-activated water preparation device 10, and the first liquid outlet pipeline has a connection state connected to the docking port and a separation state separated from the docking port; the dishwasher filter self-cleaning system also includes a driving mechanism for driving the first liquid outlet pipeline to switch between a connection state and a separation state.

[0086] In the above embodiment, when the filter self-cleaning mode is started, the driving mechanism controls the first liquid outlet pipeline to switch to a connected state, so that the outlet end of the first liquid outlet pipeline is connected to the docking port, which facilitates the introduction of activated water into the filter. After the activated water is introduced, the first liquid outlet pipeline can be controlled to switch to a separated state, so that the first liquid outlet pipeline is separated from the docking port to avoid interfering with the rotation of the filter 21.

[0087] According to an embodiment of the present invention, on the other hand, a dishwasher is provided, comprising an inner tank and a dishwasher filter self-cleaning system according to any of the above-mentioned embodiments, wherein the plasma activated water prepared by the plasma activated water preparation device 10 can be selectively passed into the inner tank or the filter 21 for sterilization and disinfection.

[0088] In the above embodiment, the activated water prepared by the plasma activated water preparation device 10 can not only be passed into the inner tank to disinfect the tableware and other items in the inner tank, but also can be passed into the filter 21 for sterilization and disinfection, so that one thing can be used for multiple purposes, thereby improving the practicality of the product.

[0089] Furthermore, the liquid storage container 11 of the plasma activated water preparation device 10 is provided with a first liquid outlet and a second liquid outlet, the first liquid outlet is connected to a first liquid outlet pipeline, the first liquid outlet pipeline is connected to the filter 21, and is used to pass activated water into the filter 21; the second liquid outlet is connected to a second liquid outlet pipeline, the second liquid outlet pipeline is connected to the inner tank, and is used to pass activated water into the inner tank.

[0090] Furthermore, in this embodiment, the dishwasher also includes a water inlet mechanism, and a water inlet is provided on the liquid storage container 11. The water inlet mechanism includes a main water inlet pipe connected to the tap water connector and a first branch water inlet pipe and a second branch water inlet pipe respectively connected to the inner tank and the liquid storage container 11. A three-way valve 30 is provided at the intersection of the main water inlet pipe and the first branch water inlet pipe and the second branch water inlet pipe. The three-way valve 30 is used to switch the conduction between the tap water connector and the inner tank, and the tap water connector and the liquid storage container 11.

[0091] According to an embodiment of the present invention, on the other hand, a control method for a dishwasher applicable to any of the above embodiments is provided. Figure 1 As shown, the control method includes the following steps:

[0092] Step S101: receiving a filter self-cleaning start signal;

[0093] Step S102: Entering the filter self-cleaning mode, controlling the plasma activated water preparation device 10 to spray the prepared plasma activated water onto the filter 21;

[0094] Step S103: After the plasma activated water is sprayed, the filter 21 is controlled to stand for a set time, and then the filter 21 is controlled to rotate at a high speed to remove the residue on the filter 21.

[0095] In the above embodiment, after spraying the filter 21, since the activated water is partially suspended after being atomized, it can be left standing for a period of time so that the suspended activated water can be completely attached to the filter body 211 and the cup 212, so that the activated water can fully contact and react with the bacteria and other microorganisms on the filter 21, thereby improving the sterilization effect. Moreover, after the filter 21 has been left standing for a set time, it can be controlled to rotate at a high speed, so that the food residues, waste liquid, and bacterial debris attached to the filter 21 can fall off together with the rotation of the filter 21 under the action of centrifugal force, making it easier to discharge outside the dishwasher.

[0096] Furthermore, in the above step S101, "receiving the filter self-cleaning start signal" can come from a user's trigger instruction or from a timing signal. For example, when the user wants to start the filter self-cleaning mode, it can be triggered by a button, or the timing unit will also trigger a corresponding instruction when it determines that the filter self-cleaning mode has not been performed for a set time.

[0097] In the above step S102, the time of the filter self-cleaning mode can also be determined according to the self-cleaning situation selected by the user. If it is only disinfected after a single wash, the spraying time is determined after testing the sterilization effect, for example, a single spraying of 30s. If the filter self-cleaning mode is not performed for a long time and only the inside of the dishwasher is disinfected regularly, the spraying time can be appropriately extended.

[0098] In some embodiments, after controlling the filter 21 to rotate at a high speed to remove the residue on the filter 21, step S1031 or step S1032 is further performed:

[0099] Step S1031: Control the dishwasher to start a drying mode to dry the entire interior of the dishwasher;

[0100] Step S1032: After the filter 21 is rinsed, the dishwasher is controlled to start a drying mode to dry the entire interior of the dishwasher.

[0101] In the above embodiment, after the filter 21 is controlled to rotate at a high speed so that the residue on the filter 21 is detached, the dishwasher turns on the drying mode to dry the entire interior of the dishwasher to avoid the problem of bacteria easily breeding in a humid environment. Alternatively, after the filter 21 is rinsed and the residue thrown off is washed away, the dishwasher is controlled to turn on the drying mode, which can effectively ensure the cleanliness of the interior of the dishwasher and further prevent the occurrence of bacteria breeding.

[0102] In some embodiments, Figure 6 As shown, the control method also includes the following steps:

[0103] Step S201: upon receiving a washing instruction from the user, prompting the user whether to turn on the filter self-cleaning mode;

[0104] Step S202: If the user does not choose to start the filter self-cleaning mode, the corresponding washing mode is directly run according to the user's washing instruction until it ends;

[0105] Step S203: If the user chooses to start the filter self-cleaning mode, the water inlet mechanism of the dishwasher is controlled to feed a set amount of water into the plasma activated water preparation device 10, and the dishwasher is controlled to prepare activated water while performing the washing process.

[0106] In the above embodiment, when the user starts to select a washing program, the user is reminded whether to turn on the filter self-cleaning mode, which is more intelligent. If the user chooses to turn on the filter self-cleaning mode, the dishwasher is controlled to prepare activated water while performing the washing process, saving time.

[0107] In some embodiments, if the user does not choose to start the filter self-cleaning mode, the following steps are also performed:

[0108] Step S301: Obtaining the time interval since the last time the user turned on the filter self-cleaning mode;

[0109] Step S302: If it is determined that the dishwasher has not been in the filter self-cleaning mode for the set continuous use time, the filter self-cleaning mode is automatically turned on after the washing mode ends to disinfect the filter 21.

[0110] In the above embodiment, when it is determined that the user has not turned on the filter self-cleaning mode for a continuous set interval (such as seven consecutive days), the filter self-cleaning mode is automatically turned on to disinfect the filter 21, thereby preventing the user from forgetting to self-clean the filter 21 for a long time, causing serious growth of residual bacteria on the filter 21.

[0111] In some embodiments, if the user chooses to start the filter self-cleaning mode, the following steps are also performed:

[0112] Step S401: Calculate the time T1 required for preparing plasma activated water;

[0113] Step S402: Calculate the time T2 required for the washing mode selected by the user;

[0114] Step S403: when it is determined that T1≤T2, directly entering the filter self-cleaning mode after the washing mode ends;

[0115] Step S404: when it is determined that T1>T2, after the current washing mode ends, it is determined whether the user has turned on the washing mode again: if yes, step S405 is executed; if no, step S406 is executed;

[0116] Step S405: Control the dishwasher to work normally according to the set washing sequence;

[0117] Step S406: directly enter the filter self-cleaning mode after the current washing mode ends.

[0118] Combination Figure 3 As shown, the dotted boxes are programs that are only available when the washing mode is set, the solid boxes are required programs for each washing mode, the ovals are programs added after the rotating filter self-cleaning mode, and from left to right is the washing sequence of the dishwasher.

[0119] Since each washing mode of the dishwasher corresponds to a different washing scene, there are differences in the washing stages and washing durations. Under the function mode selection, confirm whether to select the filter self-cleaning mode. If the filter self-cleaning mode is selected, the control logic needs to perform multiple processing judgments. After opening the three-way valve 30 to complete the activated water preparation time T1 required to enter the liquid storage container 11 with a set amount of water, calculate the total washing time T2 of each stage. If T1≤T2, then directly proceed to the self-cleaning mode and drying stage after the hot bleaching is completed. If T1>T2, determine whether the user has turned on the washing mode again. If so, run the timing of the existing stage. If not, directly proceed to the filter self-cleaning mode and drying stage.

[0120] In some embodiments, after determining that the user chooses to start the filter self-cleaning mode, the following steps are further performed:

[0121] Step S501: based on the user's washing instruction, obtaining the washing mode type selected by the user, the washing mode type including a light washing mode and a heavy washing mode;

[0122] Step S502: When the user selects the light washing mode, the dishwasher is controlled to start the filter self-cleaning mode after performing the light washing mode for a set number of times continuously;

[0123] Step S503: When the user selects the heavy washing mode, the amount of plasma-activated water passing into the filter 21 is increased, and / or the standing time of the filter 21 is increased, and / or the rotation speed of the filter 21 is increased, and / or the rotation time of the filter 21 is increased.

[0124] In the above embodiment, the user selects different washing modes to represent different degrees of dirtiness of the dishes. The level of the filter self-cleaning mode can be divided into a light washing mode and a heavy washing mode. The heavy washing mode indicates that the dishes are more oily and the filter 21 is more likely to be contaminated by its own bacteria. If the user selects the heavy washing mode, the amount of activated water sprayed can be increased, for example, from 1L to 2L, or the standing time, rotation speed, and rotation time of the filter 21 can be increased to improve the sterilization effect. If the user selects the light washing mode, it can be adjusted to perform cleaning once after multiple times for energy saving. For example, after using the light washing mode five times in a row, the filter self-cleaning mode can be turned on to achieve the purpose of saving energy.

[0125] Combination Figures 1 to 4 As shown, the present invention uses liquid plasma activated water to regularly clean, disinfect and remove odors from the filter 21, and defines this function as a filter self-cleaning mode in the dishwasher, which is provided to users as an additional function. Since the stages and stage times of each washing mode are different, the program runs to calculate the sum of the washing time of each stage in each mode as T2, and the time required for preparing activated water is T1. In order to ensure that there is enough time to prepare activated water of the required concentration, it enters T2, and the washing time of each stage in each mode is timed and monitored during the washing process.

[0126] Furthermore, the filter self-cleaning mode includes turning on the suction pump 12 to sprinkle the prepared activated water into the filter 21. After the activated water is sprinkled, it is left to stand for a set time, and then enters the drying stage, which specifically includes two stages. The first stage: turning on the driving component 22 to rotate the lifting cup 212 and the filter body 211 at high speed to separate the grease and activated water in the filter 21 from the lifting cup 212 and the filter body 211; the second stage: turning on the drying system of the dishwasher system to dry the entire interior of the dishwasher.

[0127] Furthermore, before the dishwasher selects the function mode to start the function, the MCU first determines whether the user chooses to turn on the filter self-cleaning mode: if not, it will directly run according to the washing mode selected by the user until the mode ends. The time that the user did not turn on the cleaning is calculated from the last time the user chose to turn on the cleaning. If the user has not turned on the cleaning for 1 week in a row, the filter self-cleaning mode is automatically turned on to disinfect the filter 21. If the user chooses to turn on the self-cleaning mode while selecting the washing mode, the three-way valve 30 is opened to allow 1L of tap water to enter the activated water preparation box. After the water intake is completed, the activated water preparation program is started to allow the dishwasher to prepare activated water while washing.

[0128] If the user selects a light washing mode such as quick wash, and the activated water preparation is not completed at the end of washing, the MCU will first determine whether the user has selected the washing mode again to start washing. If the newly selected mode is running, the activated water will continue to be prepared. After the current mode is completed, the filter self-cleaning mode will be turned on to disinfect the filter 21. If the user does not select other function modes at the end of light washing, the filter self-cleaning mode will be automatically turned on to disinfect the filter 21 after the activated water preparation is completed. If the user selects a heavy cleaning mode, such as strong washing, the activated water preparation can be completed during the washing process, and the filter self-cleaning mode will be automatically turned on to disinfect the filtration system after the washing is completed.

[0129] The dishwasher control method provided in this embodiment can regularly self-clean, disinfect and remove odors from the filter 21 according to the user's usage habits, thereby improving product intelligence and providing a stronger user experience, and effectively solving the problems of bacterial growth and odor caused by the accumulation of grease in the filter 21, as well as the inconvenience of manual regular cleaning by the user.

[0130] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall all fall within the protection scope of the embodiments of the present application.

Claims

1. A dishwasher filter self-cleaning system, characterized in that: include: A plasma activated water preparation device (10) for preparing plasma activated water; A filtering device (20) comprises a filter (21) and a driving component (22), wherein the filter (21) is rotatably arranged in a water cup of a dishwasher, and the driving component (22) is connected to the filter (21) and is used to drive the filter (21) to rotate; The water cup is provided with a self-cleaning water spraying structure or the filter (21) is provided with a self-cleaning water spraying structure, and the plasma activated water preparation device (10) is connected to the self-cleaning water spraying structure to spray plasma activated water onto the filter (21) to sterilize and disinfect it.

2. The dishwasher filter self-cleaning system according to claim 1, characterized in that: The filter (21) comprises: A filter body (211), wherein the self-cleaning water spraying structure comprises an atomizing spray head arranged on the filter body (211); The atomizing nozzle is used to spray the plasma-activated water prepared by the plasma-activated water preparation device (10) onto the filter body (211) in the form of a mist.

3. The dishwasher filter self-cleaning system according to claim 2, characterized in that: The filter (21) further comprises: A lifting cup (212) is arranged in the filter body (211), and a plurality of through holes (2110) are arranged on the peripheral wall of the filter body (211), and the plasma-activated water on the filter body (211) can flow to the lifting cup (212) through the through holes (2110).

4. The dishwasher filter self-cleaning system according to claim 2, characterized in that: The plasma activated water preparation device (10) comprises: A liquid storage container (11) is connected to a first liquid outlet pipeline, wherein the outlet end of the first liquid outlet pipeline is in communication with the atomizing nozzle; A suction pump (12) is arranged on the first liquid outlet pipeline and is used to suck the plasma-activated water generated in the liquid storage container (11) to the filter (21).

5. The dishwasher filter self-cleaning system according to claim 4, characterized in that: The atomizing nozzle has a docking port connected to the plasma activated water preparation device (10); The first liquid outlet pipeline has a connection state connected to the docking port and a separation state separated from the docking port; The dishwasher filter self-cleaning system further comprises a driving mechanism for driving the first liquid outlet pipeline to switch between the connected state and the separated state.

6. A dishwasher, characterized in that: include: Liner; In the dishwasher filter self-cleaning system according to any one of claims 1 to 5, the plasma activated water prepared by the plasma activated water preparation device (10) can be selectively introduced into the inner tank or filter (21) for sterilization and disinfection.

7. A control method for the dishwasher according to claim 6, characterized in that: The control method comprises: Receive filter self-cleaning start signal; Entering the filter self-cleaning mode, controlling the plasma activated water preparation device (10) to spray the prepared plasma activated water onto the filter (21); After the plasma activated water is sprayed, the filter (21) is controlled to stand for a set time, and then the filter (21) is controlled to rotate at a high speed to remove the residue on the filter (21).

8. The method for controlling a dishwasher according to claim 7, characterized in that: After the filter (21) is controlled to rotate at a high speed so that the residue on the filter (21) is separated, the following steps are also performed: Control the dishwasher to start the drying mode to dry the entire interior of the dishwasher; Alternatively, after the filter (21) is rinsed, the dishwasher is controlled to start a drying mode to dry the entire interior of the dishwasher.

9. The method for controlling a dishwasher according to claim 7, characterized in that: The control method further comprises the following steps: When receiving a washing instruction from the user, prompt the user whether to turn on the filter self-cleaning mode; If the user does not choose to turn on the filter self-cleaning mode, the corresponding washing mode will be run directly according to the user's washing instructions until it ends; If the user chooses to start the filter self-cleaning mode, the water inlet mechanism of the dishwasher is controlled to feed a set amount of water into the plasma activated water preparation device (10), and the dishwasher is controlled to prepare activated water while performing a washing process.

10. The control method of the dishwasher according to claim 9, characterized in that: If the user does not choose to turn on the filter self-cleaning mode, perform the following steps: Get the time interval since the last time the user turned on the filter self-cleaning mode; If it is determined that the dishwasher has not been in the filter self-cleaning mode for a set period of time during continuous use, the filter self-cleaning mode is automatically turned on after the washing mode ends to disinfect the filter (21).

11. The control method of the dishwasher according to claim 9, characterized in that: If the user chooses to turn on the filter self-cleaning mode, the following steps are also performed: Calculate the time T1 required to prepare plasma activated water; Calculate the time T2 required for the washing mode selected by the user; When it is judged that T1≤T2, the filter self-cleaning mode is directly entered after the washing mode ends; When it is determined that T1>T2, after the current washing mode ends, it is determined whether the user has turned on the washing mode again: if so, the dishwasher is controlled to work normally according to the set washing sequence; if not, it directly enters the filter self-cleaning mode after the current washing mode ends.

12. The method for controlling a dishwasher according to claim 9, characterized in that: After determining that the user chooses to turn on the filter self-cleaning mode, the following steps are also performed: Based on the user's washing instruction, obtaining the type of washing mode selected by the user, wherein the washing mode type includes a light washing mode and a heavy washing mode; When the user selects the light wash mode, the dishwasher is controlled to perform the light wash mode for a set number of times continuously, and then turn on the filter self-cleaning mode; When the user selects the heavy washing mode, the amount of plasma-activated water introduced into the filter (21) is increased, and / or the standing time of the filter (21) is increased, and / or the rotation speed of the filter (21) is increased, and / or the rotation time of the filter (21) is increased.

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