An air conditioner and a control method, apparatus, storage medium, and program product thereof

Abstract

The application discloses an air conditioner and a control method, device, storage medium and computer program product thereof, and the method comprises the following steps: in the case that the refrigeration mode is started after the air conditioner is powered on, the compressor is controlled to operate at a first frequency preset in the refrigeration mode, the indoor fan is controlled to operate at a first wind speed preset in the refrigeration mode, and the electrolysis module is controlled to be started and timing is started; when the current of the electrolysis module is determined to change from 0 to greater than 0, the timing is stopped, and the current passing time of the electrolysis module is obtained; according to the current passing time of the electrolysis module, if it is determined that the water receiving tray needs to be self-cleaned, a preset self-cleaning program is executed to: in combination with the current passing time of the electrolysis module and the indoor environment temperature and humidity of the air conditioner, the electrolysis module is controlled to electrolyze bacteria, and the water receiving tray is self-cleaned. According to the scheme, the electrolysis module arranged on the water receiving tray is used to electrolyze the condensed water to sterilize and purify the water receiving tray, dirt and peculiar smell in the water channel are avoided, and the human body health is beneficial.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and specifically relates to a control method, device, air conditioner, storage medium and computer program product for an air conditioner, and more particularly to a water channel self-cleaning control method, device, air conditioner, storage medium and computer program product for an air conditioner. Background Art

[0002] During the operation of the air conditioner, condensed water is generated, which is collected in the water pan (also called the waterway) and then discharged to the outside through the drainpipe. As the use time increases, the waterway is exposed to a moist and warm environment that is suitable for the growth of bacteria and mold. The proliferation of bacteria and mold affects the quality of indoor air. On the other hand, the presence of these microorganisms will secrete a kind of mucus in the air conditioner environment. Like an adhesive, it will adhere to dust, particles and other substances to form a sticky sediment that adheres to the surface of the waterway, affecting the normal use of the air conditioner. The industry calls it biological slime. Figure 7 shown. Figure 7 This is the current status of biological slime pollution in the waterway of air conditioners.

[0003] Bacteria and other microorganisms are the key cause of these problems. The solution proposed in the related proposal is to treat the air conditioner's waterways with antibacterial agents to inhibit microbial growth and thus control waterway contamination. However, these antibacterial air conditioner waterways fail to address the problem of contamination and odor, and are therefore detrimental to human health.

[0004] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0005] The object of the present invention is to provide a control method, device, air conditioner, storage medium and computer program product for an air conditioner, so as to solve the problem that the antibacterial water channel of the air conditioner cannot solve the problem that the water channel of the air conditioner is dirty and has an odor, which is not conducive to human health. The electrolysis module provided on the water receiving tray electrolyzes the condensed water to sterilize and purify the water receiving tray, thereby avoiding dirt and odor in the water channel, which is beneficial to human health.

[0006] The application provides a control method of an air conditioner, the air conditioner has an indoor unit and an outdoor unit, the indoor unit has an indoor heat exchanger and an indoor fan, and the outdoor unit has a compressor; a water collecting tray is arranged below the indoor heat exchanger, and an electrolysis module is arranged in a water channel of the water collecting tray; in the case that the electrolysis module is turned on, after the cathode and the anode of the electrolysis module are in contact with the water channel of the water collecting tray and the condensed water is conducted, the electrolysis module can generate active bactericidal substances to perform self-cleaning on the water collecting tray; the control method of the air conditioner comprises the following steps: in the case that the air conditioner is powered on and the cooling mode is turned on, the compressor is controlled to operate at a first frequency preset in the cooling mode, the indoor fan is controlled to operate at a first wind speed preset in the cooling mode, and the electrolysis module is controlled to be turned on and start timing; the indoor environment temperature and humidity of the air conditioner are acquired, and the current of the electrolysis module is acquired; when it is determined that the current of the electrolysis module changes from 0 to greater than 0, the timing is stopped, the time from the start of the electrolysis module to the current passing through is obtained, and is recorded as the current passing time of the electrolysis module; whether the water collecting tray needs to be self-cleaned is determined according to the current passing time of the electrolysis module; if it is determined that the water collecting tray needs to be self-cleaned, a preset self-cleaning program is executed to: in combination with the current passing time of the electrolysis module and the indoor environment temperature and humidity of the air conditioner, the electrolysis module is controlled to perform electrolysis sterilization to perform self-cleaning on the water collecting tray.

[0007] In some embodiments, the water channel of the water collecting tray has a high position and a low position; the number of the electrolysis modules is more than one; and the more than one electrolysis modules are installed at the high position and / or the low position of the water channel of the water collecting tray.

[0008] In some embodiments, determining whether the water collecting tray needs to be self-cleaned according to the current passing time of the electrolysis module comprises: determining whether the difference between the current passing time of the electrolysis module and a preset current passing time threshold is greater than or equal to a preset dirt time threshold; if it is determined that the difference between the current passing time of the electrolysis module and the preset current passing time threshold is less than the preset dirt time threshold, it is determined that the water collecting tray does not need to be self-cleaned; and if it is determined that the difference between the current passing time of the electrolysis module and the preset current passing time threshold is greater than or equal to the preset dirt time threshold, it is determined that the water collecting tray needs to be self-cleaned.

[0009] In some embodiments, the determining whether the water pan needs to be self-cleaned according to the current electrolysis module current passing time further comprises: calling the electrolysis module current passing time determined last time; determining a difference between the electrolysis module current passing time determined this time and the electrolysis module current passing time determined last time, denoted as a difference between two adjacent electrolysis module current passing times; and determining whether the difference between two adjacent electrolysis module current passing times is greater than or equal to a preset dirt time threshold; if the difference between two adjacent electrolysis module current passing times is determined to be less than the preset dirt time threshold, it is determined that the water pan does not need to be self-cleaned; and if the difference between two adjacent electrolysis module current passing times is determined to be greater than or equal to the preset dirt time threshold, it is determined that the water pan needs to be self-cleaned.

[0010] In some embodiments, the executing the preset self-cleaning program to control the electrolysis module to electrolyze and sterilize, and to self-clean the water pan in combination with the electrolysis module current passing time and the indoor environment temperature and humidity of the air conditioner comprises: executing a preset condensation mode under the preset self-cleaning program: controlling a valve of a drain nozzle of the water pan to be closed, determining a target condensation time of the air conditioner according to the electrolysis module current passing time; under the preset condensation mode, controlling the compressor to continue to operate at a first frequency preset in the cooling mode and the indoor fan to continue to operate at a first wind speed preset in the cooling mode; after operating for the target condensation time, determining a target electrolysis operation time of the electrolysis module and a target sterilization time after the electrolysis operation of the electrolysis module ends according to the target condensation time, the electrolysis module current passing time and the indoor environment temperature and humidity of the air conditioner; executing a preset sterilization mode: controlling the electrolysis module to operate for the target electrolysis operation time to produce active sterilization substances; executing a preset drying mode: after the electrolysis operation of the electrolysis module ends and the electrolysis module continues to be powered for the target sterilization time, determining that the electrolysis and sterilization of the electrolysis module ends, controlling the air conditioner to turn off the cooling mode and turn on the heating mode, controlling the compressor to operate at a second frequency preset in the heating mode and the indoor fan to operate at a second wind speed preset in the heating mode, setting a drying time, and then exiting the preset self-cleaning program to complete the self-cleaning of the water pan.

[0011] In some embodiments, according to the target condensation time, the current passing time of the electrolysis module and the indoor environment temperature and humidity of the air conditioner, the target electrolysis operation time of the electrolysis module is determined, and the target sterilization time after the electrolysis operation of the electrolysis module is determined, including: according to the indoor environment temperature and humidity of the air conditioner before and after the target condensation time, the total condensate water amount generated by the air conditioner in the preset condensation mode is determined; according to the indoor environment temperature and humidity of the air conditioner before and after the current passing time of the electrolysis module, the condensate water amount hung on the indoor heat exchanger is determined; the difference between the total condensate water amount generated by the air conditioner in the preset condensation mode and the condensate water amount hung on the indoor heat exchanger is determined as the effective condensate water amount in the water pan; according to the corresponding relationship between the set condensate water amount and the set electrolysis time, the set electrolysis time corresponding to the set condensate water amount same as the effective condensate water amount in the water pan in the corresponding relationship is determined as the target electrolysis operation time of the electrolysis module; according to the corresponding relationship between the set electrolysis time, the set current passing time and the set sterilization time, the set sterilization time corresponding to the set electrolysis time same as the target electrolysis operation time of the electrolysis module, the set current passing time corresponding to the set current passing time of the electrolysis module is determined as the target sterilization time after the electrolysis operation of the electrolysis module.

[0012] According to the method, the application provides a control device of an air conditioner. The air conditioner has an indoor unit and an outdoor unit. The indoor unit has an indoor heat exchanger and an indoor fan. The outdoor unit has a compressor. A water tray is arranged below the indoor heat exchanger. An electrolysis module is arranged in a water channel of the water tray. When the electrolysis module is turned on, the cathode and the anode of the electrolysis module are in contact with the water channel of the water tray, and the electrolysis module can generate active bactericidal substances to clean the water tray. The control device of the air conditioner includes a control unit configured to control the compressor to operate at a first frequency preset in a cooling mode, control the indoor fan to operate at a first wind speed preset in the cooling mode, and control the electrolysis module to be turned on and start timing when the air conditioner is powered on and the cooling mode is started. A obtaining unit is configured to obtain the indoor environment temperature and humidity of the air conditioner and obtain the current of the electrolysis module. When the current of the electrolysis module changes from 0 to greater than 0, the timing is stopped, and the time from the electrolysis module being turned on to the current passing through the electrolysis module is obtained, which is recorded as the current passing time of the electrolysis module. The control unit is further configured to determine whether the water tray needs to be cleaned according to the current passing time of the electrolysis module. If it is determined that the water tray needs to be cleaned, the control unit executes a preset cleaning program to control the electrolysis module to perform electrolysis sterilization and clean the water tray according to the current passing time of the electrolysis module and the indoor environment temperature and humidity of the air conditioner.

[0013] In some embodiments, the water channel of the water tray has a high position and a low position. The number of electrolysis modules is more than one. More than one electrolysis module is installed at the high position and / or the low position of the water channel of the water tray.

[0014] In some embodiments, the control unit determines whether the water tray needs to be cleaned according to the current passing time of the electrolysis module, including determining whether the difference between the current passing time of the electrolysis module and a preset current passing time threshold is greater than or equal to a preset dirt time threshold. If the difference between the current passing time of the electrolysis module and the preset current passing time threshold is less than the preset dirt time threshold, it is determined that the water tray does not need to be cleaned. If the difference between the current passing time of the electrolysis module and the preset current passing time threshold is greater than or equal to the preset dirt time threshold, it is determined that the water tray needs to be cleaned.

[0015] In some embodiments, the control unit determines whether the water pan needs to be self-cleaned according to the current passing time of the electrolysis module, and further comprises: calling the last determined passing time of the electrolysis module; determining the difference between the current determined passing time of the electrolysis module and the last determined passing time of the electrolysis module, denoted as the adjacent two passing time difference of the electrolysis module; and determining whether the adjacent two passing time difference of the electrolysis module is greater than or equal to a preset dirt time threshold; if it is determined that the adjacent two passing time difference of the electrolysis module is less than the preset dirt time threshold, it is determined that the water pan does not need to be self-cleaned; if it is determined that the adjacent two passing time difference of the electrolysis module is greater than or equal to the preset dirt time threshold, it is determined that the water pan needs to be self-cleaned.

[0016] In some embodiments, the control unit executes a preset self-cleaning program to control the electrolysis module to electrolyze and sterilize to self-clean the water pan in combination with the passing time of the electrolysis module and the indoor environment temperature and humidity of the air conditioner, comprising: executing a preset condensation mode under the preset self-cleaning program: controlling the valve of the drain nozzle of the water pan to be closed, determining the target condensation time of the air conditioner according to the passing time of the electrolysis module; under the preset condensation mode, controlling the compressor to continue to operate at the first frequency preset in the cooling mode and the indoor fan to continue to operate at the first wind speed preset in the cooling mode; after operating for the target condensation time, determining the target electrolysis operation time of the electrolysis module and the target sterilization time after the electrolysis operation of the electrolysis module ends according to the target condensation time, the passing time of the electrolysis module and the indoor environment temperature and humidity of the air conditioner; executing a preset sterilization mode: controlling the electrolysis module to operate for the target electrolysis operation time to produce active sterilization substances; executing a preset drying mode: after the electrolysis operation of the electrolysis module ends and the electrolysis module continues to be powered for the target sterilization time, determining that the electrolysis and sterilization of the electrolysis module ends, controlling the air conditioner to turn off the cooling mode and turn on the heating mode, controlling the compressor to operate at the second frequency preset in the heating mode and the indoor fan to operate at the second wind speed preset in the heating mode, setting a drying time, and then exiting the preset self-cleaning program to complete the self-cleaning of the water pan.

[0017] In some embodiments, the control unit determines the target electrolysis operation time of the electrolysis module according to the target dewing time, the current passing time of the electrolysis module and the indoor environment temperature and humidity of the air conditioner, and determines the target sterilization time after the electrolysis operation of the electrolysis module ends, including: determining the total condensate water amount generated by the air conditioner in the preset dewing mode according to the indoor environment temperature and humidity of the air conditioner before and after the target dewing time; determining the condensate water amount of the indoor heat exchanger according to the indoor environment temperature and humidity of the air conditioner before and after the current passing time of the electrolysis module; determining the effective condensate water amount in the water pan as the difference between the total condensate water amount generated by the air conditioner in the preset dewing mode and the condensate water amount of the indoor heat exchanger; determining the target electrolysis operation time of the electrolysis module as the set electrolysis time corresponding to the set condensate water amount same as the effective condensate water amount in the water pan according to the corresponding relationship between the set condensate water amount and the set electrolysis time; and determining the target sterilization time after the electrolysis operation of the electrolysis module ends as the set sterilization time corresponding to the set electrolysis time same as the target electrolysis operation time of the electrolysis module and the set current passing time corresponding to the current passing time of the electrolysis module according to the corresponding relationship between the set electrolysis time, the set current passing time and the set sterilization time.

[0018] In order to match the above device, the application further provides an air conditioner, including the above-mentioned control device of the air conditioner.

[0019] In order to match the above method, the application further provides a storage medium, including a stored program, wherein when the program is running, the device where the storage medium is located executes the steps of the above-mentioned control method of the air conditioner.

[0020] In order to match the above method, the application further provides a computer program product, including a computer program, which, when executed by a processor, realizes the steps of the above-mentioned control method of the air conditioner.

[0021] Thus, the scheme of the present application, by setting electrolysis module in the water channel of the water pan below the evaporator in the indoor unit of the air conditioner, in the case of running the refrigeration mode after the air conditioner is started, the electrolysis module is started, whether the self-cleaning program of the air conditioner needs to be started is judged according to the actual current passing time of the electrolysis module; in the case of needing to start the self-cleaning program of the air conditioner, the valve of the drain nozzle of the water pan is controlled to be closed to run the condensation mode, the indoor fan and the compressor are controlled to continue running according to the running parameters in the refrigeration mode for the first preset time, the total water amount generated by the air conditioner running the condensation mode is determined according to the indoor environment temperature and humidity before and after the first preset time, the water hanging amount of the indoor heat exchanger is determined according to the actual current passing time of the electrolysis module and the indoor environment temperature and humidity, the difference between the total water amount and the water hanging amount is determined as the effective condensate water amount, the target electrolysis running time and the maintenance time of the electrolysis module are determined according to the effective condensate water amount, and then the drying mode is executed to complete the self-cleaning of the water channel of the water pan; thereby, the electrolysis condensate water of the electrolysis module arranged on the water pan is used to sterilize and purify the water pan, the water channel is prevented from being dirty and smelly, and the human health is beneficial.

[0022] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application.

[0023] The technical scheme of the present application will be further described in detail below with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The flowchart of an embodiment of the control method of the air conditioner of the present application is shown in the figure.

[0025] Figure 2 The flowchart of an embodiment of the first process of determining whether the water pan 1 needs to be self-cleaned in the method of the present application is shown in the figure.

[0026] Figure 3 The flowchart of an embodiment of the second process of determining whether the water pan 1 needs to be self-cleaned in the method of the present application is shown in the figure.

[0027] Figure 4 The flowchart of an embodiment of controlling the electrolysis sterilization of the electrolysis module 3 in the method of the present application is shown in the figure.

[0028] Figure 5 The flowchart of an embodiment of determining the target electrolysis running time and the target sterilization time of the electrolysis module 3 in the method of the present application is shown in the figure.

[0029] Figure 6 The structure diagram of an embodiment of the control device of the air conditioner of the present application is shown in the figure.

[0030] Figure 7 Figure for waterway biological slime pollution status of air conditioner;

[0031] Figure 8 Structure diagram of water pan purifying device of air conditioner;

[0032] Figure 9 Structure diagram of electrolysis module;

[0033] Figure 10 Structure diagram of installation structure of electrolysis module, wherein (a) is a structure diagram of installation structure one of electrolysis module, and (b) is a structure diagram of installation structure two of electrolysis module;

[0034] Figure 11 Flow diagram of water pan self-cleaning control method of air conditioner;

[0035] Figure 12 Diagram for water hanging amount of air conditioner under different life attenuations;

[0036] Figure 13 Diagram for dirt condition of air conditioner under different water hanging amounts;

[0037] Figure 14 Structure diagram of water pan self-cleaning control device of air conditioner.

[0038] In combination with the drawings, the following is the meaning of the reference signs in the embodiments of the present application:

[0039] 1-water pan (trough); 11-high position of water pan; 12-low position of water pan; 2-drainage nozzle; 3-electrolysis module; 31-first electrode (such as cathode); 32-second electrode (such as anode); 33-power line; 4-air inlet; 5-air outlet; 6-temperature and humidity sensor; 7-evaporator; 8-internal fan; 9-air deflector; 102-acquisition unit; 104-control unit. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely in combination with the specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0041] In view of the fact that the air conditioner antibacterial water channel in the related scheme cannot solve the problem of air conditioner water channel dirt odor, which is not conducive to human health. For example: contact type antibacterial method, such as antibacterial treatment of water channel surface material, the effect is limited, especially when the antibacterial water channel surface is covered by pollutants, it cannot continue to play a role. The precipitation type antibacterial method plays a role through the residual condensate in the water channel, but the speed is uncontrollable, the effect is difficult to last, and it cannot play a role after a long time. The replaceable precipitation type antibacterial module can solve part of the problem, but for the narrow water channel and crowded internal structure of the air conditioner, it is difficult to replace and install. In summary, the related scheme cannot better solve the problem of air conditioner water channel dirt, which is not conducive to human health.

[0042] Therefore, the scheme of the present application provides a control method of an air conditioner, in particular a water channel self-cleaning control method of an air conditioner, which provides an efficient and durable air conditioner water channel purification scheme without consumables. The electrolysis module provided on the water pan electrolyzes the condensate generated during the operation of the air conditioner to generate active bactericidal substances, which flow through the entire water pan to achieve bactericidal purification of the water pan. It can better solve the problem of air conditioner water channel dirt, which is conducive to human health.

[0043] According to an embodiment of the present application, a control method of an air conditioner is provided, as shown in Figure 1 The flowchart of an embodiment of the method of the present application. The air conditioner has an indoor unit and an outdoor unit, the indoor unit has an indoor heat exchanger and an indoor fan, and the outdoor unit has a compressor; a water pan 1 is arranged below the indoor heat exchanger, and an electrolysis module 3 is arranged in the water channel of the water pan 1; when the electrolysis module 3 is turned on, the cathode and anode of the electrolysis module 3 are in contact with the water channel of the water pan 1, and the condensate is conducted, so that the electrolysis module 3 can generate active bactericidal substances to clean the water pan 1.

[0044] In some embodiments, the water channel of the water pan 1 has a high position and a low position; the number of electrolysis modules 3 is more than one; and more than one electrolysis module 3 is installed at the high position and / or the low position of the water channel of the water pan 1.

[0045] The scheme of the present application provides a water pan self-cleaning control scheme of an air conditioner, which aims to solve the problem of dirty and peculiar smell of the water pan in the related scheme. In order to achieve the above purpose, as shown in Figure 8 , Figure 9 , Figure 10 The scheme of the present application first provides a water pan purification device of an air conditioner. Figure 8 The structure diagram of the water pan purification device of the air conditioner. As shown in Figure 8 The electrolysis module is installed on the upstream of the water channel, which can achieve the water channel cleaning effect required by the scheme of the present application.Figure 9 Schematic diagram of the structure of the electrolysis module. Figure 10 Schematic diagrams of the installation structure of the electrolysis module, wherein (a) is a schematic diagram of the installation structure 1 of the electrolysis module, and (b) is a schematic diagram of the installation structure 2 of the electrolysis module.

[0046] like Figure 8 and Figure 10 As shown, the air conditioner includes an indoor unit and an outdoor unit. The indoor unit has an air inlet 4, an internal fan 8, an air outlet 5 and an air guide plate 9. The air duct connected to the air inlet 4 and the air outlet 5 is provided with a water receiving tray 1 and an environmental parameter detection device (such as a temperature and humidity sensor 6). The outdoor unit has components such as a compressor, an external fan and a condenser. An evaporator 7 is installed above the water receiving tray 1. When the air conditioner is in cooling operation, the evaporator 7 will produce condensed water, which will flow down along the fins of the evaporator 7 and converge into the water receiving tray 1. It will flow from the high position 11 of the water receiving tray to the low position 12 of the water receiving tray 1, and finally be discharged to the outside through the drain nozzle 2 and the drain pipe of the air conditioner. Optionally, the drain nozzle 2 has a controllable opening and closing valve, and the opening and closing of the valve can control the retention of condensed water in the water receiving tray 1. Figure 10 The two arrangements and quantities shown are based on the drainage differences of the air conditioner water tray 1. The purpose is to allow the electrolytic condensed water to flow through the entire area of ​​the water tray 1. The environmental parameter detection device is an air temperature and humidity detection unit for detecting indoor ambient temperature and humidity, including a temperature sensor, a humidity sensor, or a temperature and humidity sensor 6.

[0047] like Figure 9As shown, the water pan 1 is provided with a water pan purifying device. The water pan purifying device is a water electrolysis module 3, which comprises a module main body and electrodes, and a power line 33; wherein the electrodes are, for example, a first electrode 31 (such as a cathode) and a second electrode 32 (such as an anode). The module main body is used to provide a suitable discharge voltage, and the electrodes are noble metal electrodes such as titanium electrodes (Ti) and platinum electrodes (Pt) with high catalytic activity. When a certain voltage is applied, the electrodes are conductive, so that the electrolysis of water can produce active bactericidal substances such as hydroxyl radicals and hypochlorous acid with strong oxidizing properties, which can effectively kill bacteria and other microorganisms. At the same time, based on the working principle of the electrolysis module 3, when the electrolysis module 3 works at the rated voltage, it is necessary to ensure that the two discharge electrodes (cathode and anode) are conductive to each other to exert the electrolysis effect. That is, even if the electrolysis module 3 is powered, if there is no water near the electrodes, the electrolysis module 3 cannot work normally, which is manifested as a stable voltage and a current of 0. When the water amount is sufficient to make the electrodes conductive, the current has a value, and gradually increases to the rated current and remains stable with the increase of the water amount. By using this characteristic, it can be judged whether there is water by the time when the accessory starts to work. For an air conditioner, condensate water is generated during the refrigeration process, and the condensate water flows down the evaporator 7 fins and collects in the water pan. Because the evaporator 7 fins are hydrophilic fins, theoretically, the condensate water generated by the air conditioner will quickly spread on the fins and flow down, that is, as long as the condensate water is generated, it will flow into the water pan below in time, and the electrolysis module 3 contacts the condensate water to generate a certain current value. The time interval from the start of the air conditioner to the generation of the electrolysis module 3 value is very short and can be ignored. The above is an ideal case. In fact, the hydrophilicity of the fins will decrease to a certain extent during the use of the air conditioner, and the condensate water generated by the air conditioner will be retained on the surface of the heat exchanger (such as the evaporator 7) due to problems such as dust accumulation on the surface of the heat exchanger, that is, the water hanging phenomenon occurs. That is to say, for an air conditioner in actual use, the condensate water generated by the air conditioner will first be retained (water hanging) on the heat exchanger, and will flow into the water pan after reaching a certain thickness (carrying capacity), that is, there will be a certain time interval from the start of the air conditioner to the generation of the electrolysis module 3 value. Obviously, for air conditioners with different dirt conditions and different fin service lives, the water hanging conditions are different. Considering that the service life of the hydrophilic coating of the evaporator 7 fins is relatively stable, different interval times correspond to different air conditioner dirt conditions, and the more serious the water hanging condition, the more obvious the dirt, and the longer the interval time.

[0048] In the scheme of the present application, the number of electrolysis modules 3 is determined according to the structure of the water pan 1 to ensure that the electrolysis active substance can flow through the entire area of the water pan 1. Preferably, the electrolysis module 3 is arranged at a high position of the water pan 1, so that the number of electrolysis modules 3 can be reduced to control the cost, and at the same time, the electrolysis active substance can flow through the entire water pan 1 with the condensed water, ensuring the sterilization and purification effect on the entire area. Alternatively, when the structure of the drain nozzle 2 capable of being controlled to open and close is used, because the drain nozzle 2 is closed to make the condensed water exist in the water pan 1 for a long time, the electrolysis module 3 arranged at any position of the water pan 1 can well realize electrolysis, ensuring the purification effect.

[0049] In the scheme of the present application, as shown in Figure 1 The control method of the air conditioner comprises steps S110 to S150.

[0050] At step S110, in the case that the refrigeration mode is started after the air conditioner is powered on, the compressor is controlled to operate at a first frequency preset in the refrigeration mode, the indoor fan is controlled to operate at a first wind speed preset in the refrigeration mode, and in the case that the self-cleaning mode of the air conditioner is started, the electrolysis module 3 is controlled to start and begin timing. Figure 11 The flowchart of the self-cleaning control method of the water pan 1 of the air conditioner is shown in Figure 11 The self-cleaning control method of the water pan 1 of the air conditioner comprises steps 1 and 2. Step 1: the air conditioner is powered on and operated, and then step 2 is performed. Step 2: the user's self-cleaning instruction of the water pan 1 is obtained, and then step 3 is performed.

[0051] At step S120, the indoor temperature and humidity of the air conditioner are obtained, and the current of the electrolysis module 3 is obtained.

[0052] At step S130, it is determined whether the current of the electrolysis module 3 changes from 0 to greater than 0. When it is determined that the current of the electrolysis module 3 changes from 0 to greater than 0, the timing is stopped, the time from the start of the electrolysis module 3 to the current passing through is obtained, which is recorded as the current passing time of the electrolysis module 3 (such as the actual current passing time t of the electrolysis module 3), and the current passing time of the electrolysis module 3 in a set time period is stored.

[0053] At step S140, according to the current passing time of the electrolysis module 3, it is determined whether the water pan 1 needs to be self-cleaned. As shown in Figure 11As shown, the self-cleaning control method for the air conditioner water tray 1 further includes: Step 3, detecting and obtaining the degree of contamination of the air conditioner water tray 1, and determining whether a self-cleaning program needs to be executed, followed by Step 4. The degree of contamination of the water tray 1 is strongly correlated with the degree of contamination of the heat exchanger, which in turn is strongly correlated with the time interval during which current actually flows through the electrolysis module 3. Based on this, the degree of contamination of the water tray 1 can be indirectly determined based on the time interval during which current actually flows through the electrolysis module 3.

[0054] In some embodiments, determining whether the water receiving tray 1 needs to be self-cleaned based on the current passing time of the electrolysis module 3 in step S140 includes: a first process of determining whether the water receiving tray 1 needs to be self-cleaned.

[0055] The following combination Figure 2 The flowchart of an embodiment of the first process of determining whether the water receiving tray 1 needs to be self-cleaned in the method of the present invention further illustrates the specific process of the first process of determining whether the water receiving tray 1 needs to be self-cleaned in step S140, including: steps S210 to S230.

[0056] Step S210, determining whether the difference between the current passing time of the electrolysis module 3 and the preset current passing time threshold is greater than or equal to the preset contamination time threshold. The preset current passing time threshold is such as the theoretical time length t T , preset the dirtiness time threshold such as threshold duration t0.

[0057] Step S220 : If it is determined that the difference between the current passing time of the electrolysis module 3 and the preset current passing time threshold is less than the preset contamination time threshold, it is determined that the water receiving tray 1 does not need to be self-cleaned.

[0058] Step S230: If it is determined that the difference between the current passing time of the electrolysis module 3 and the preset current passing time threshold is greater than or equal to the preset contamination time threshold, it is determined that the water receiving tray 1 needs to be self-cleaned.

[0059] like Figure 11 As shown, the self-cleaning control method of the water receiving tray 1 of the air conditioner further includes: in step 3, the dirtiness of the water receiving tray 1 can be indirectly judged by the time interval during which the electrolysis module 3 actually has current passing therethrough, specifically including:

[0060] Step 31, control the inner fan of the air conditioner to run at a first wind speed v1, and control the compressor to run at a first frequency p1, until the air conditioner runs for a certain time under a first preset condition, so that condensation can be generated between the fins of the evaporator 7 and gathered into the water pan 1; the first frequency p1 corresponds to the ambient temperature, and the first preset condition is that the tube temperature of the evaporator 7 is less than or equal to a first temperature, which corresponds to the dew point temperature corresponding to the air; the ambient temperature and the dew point temperature are detected and obtained by the ambient temperature and humidity sensor, and the first frequency p1 is determined accordingly, and then step 32 is performed. Wherein, the ambient temperature is the indoor temperature, which is mainly used to determine the dew point temperature. Specifically, according to the psychrometric chart (i.e. a chart representing the relationship between different ambient temperatures, different relative humidities, different moisture contents, etc.), it can be known that the dew point temperature corresponding to different temperatures is unique under the same humidity.

[0061] Step 32, synchronously control the electrolysis module 3 to be powered on and run, and detect and obtain the time t during which the electrolysis module 3 actually passes current; wherein, the time t is the time interval from zero point, and then step 33 is performed.

[0062] Step 33, determine the dirt judgment threshold time t0 of the heat exchanger by collecting the water hanging situation of the air conditioner under different dirt environments of the heat exchanger, considering the water hanging situation caused by the life attenuation of the hydrophilic fin of the air conditioner under normal use, and combining the expert experience and the acceptance degree of the dirt by the consumer.

[0063] Figure 12 The water hanging amount diagram of the air conditioner under different life attenuations is shown in Figure 13 The dirt situation diagram of the air conditioner under different water hanging amounts is shown in. The water hanging data of the air conditioner under different dirt environments of the heat exchanger can be obtained through experiments and after-sales data, such as Figure 12 The water hanging amount (represented by water hanging time) diagram under different life attenuations (represented by the cumulative running time of the air conditioner) is shown in. The water hanging problem can also be caused by the aging of the fin coating performance under normal use of the air conditioner. The aging is different under different running times, and the water hanging amount (time) is also different. The water hanging data under different life attenuations of the hydrophilic fin under normal use can be obtained through accelerated experiments and after-sales data, such as Figure 13 The dirt situation diagram under the same water hanging amount (represented by water hanging time) is shown in. The dirt situation is mainly judged by the actual test water hanging time, but the water hanging problem caused by the aging of the air conditioner should be excluded, that is, t-t T in the figure, and then the water hanging amount (time) can be used to judge the dirt degree. Wherein, different life attenuations are represented by the cumulative running time T of the air conditioner, which can be determined by the running time of the air conditioner. For example, combined withFigure 12 、 Figure 13 In the example shown in FIG. 2, the water hanging time of the air conditioner under different dirt conditions (containing the influence of life attenuation) and the water hanging time of the air conditioner under different life (to exclude the influence of life attenuation) are tested, that is, the water hanging condition of the air conditioner under different dirt conditions excluding its own influence can be obtained, and then the water hanging time threshold can be determined in combination with the acceptance of people to dirt.

[0064] t T is the theoretical time length, and the actual time t at which the electrolysis module 3 actually passes current is removed from the theoretical t T After the actual time length after the theoretical time length t is removed, the actual time length is t-t T to exclude the water hanging condition caused by the life attenuation of the air conditioner. By comparing the relationship between the actual time length after the theoretical time length is removed (i.e., t-t T ) and the threshold time t0, the severity of dirt can be determined, that is, by determining whether t-t T ≥ t0, it is determined whether self-cleaning is needed: if yes, step 4 is executed to run the waterway self-cleaning program, otherwise the air conditioner is controlled to maintain the current operation.

[0065] In step 33, when t-t T < t0, it is determined that the dirt condition of the water pan 1 of the air conditioner is not serious, and no related cleaning is needed; in particular, when it is determined that the water pan 1 does not need self-cleaning, but the self-cleaning instruction of the water pan 1 comes from the user, the user is prompted by voice push, panel display, and mobile phone push that the water pan 1 is currently clean and does not need self-cleaning, so as to avoid the user's doubt about the normal operation of the air conditioner.

[0066] When t-t T ≥ t0, it is determined that the air conditioner has been running for a long time, and the water pan 1 is likely to be dirty, so the waterway self-cleaning program needs to be run to ensure the user's healthy use.

[0067] Step 34, when it is determined that the air conditioner does not need to execute the self-cleaning instruction of the water pan 1, the air conditioner stops the current cooling operation mode and waits or operates according to the user's set mode; when it is determined that the air conditioner needs to execute the self-cleaning instruction of the water pan 1, the air conditioner is controlled to execute the next step, that is, step 4.

[0068] In the scheme of the present application, when the air conditioner is started, the degree of dirt on the water pan can be automatically detected and judged in combination with the operating parameters of the electrolysis module. When it is judged that purification is needed, the optimal operating parameters of the air conditioner are determined based on the operating parameters of the electrolysis module, the amount of water hanging on the air conditioner and the effective condensate water amount are determined, the condensate water is electrolyzed by the electrolysis module and maintained for a certain period of time to sufficiently purify the harmful microorganisms, and then the air conditioner is controlled to operate in a heating mode at a certain air speed and frequency to dry the moisture in the water pan and other areas inside the air conditioner, thereby completing the self-cleaning process of the water pan, realizing persistent self-cleaning of the water pan, and ensuring the health of the user.

[0069] In some embodiments, the step S140 of determining whether the water pan 1 needs to be self-cleaned according to the current time of the electrolysis module 3 further comprises a second process of determining whether the water pan 1 needs to be self-cleaned.

[0070] The second process of determining whether the water pan 1 needs to be self-cleaned in the method of the present application will be further described below with reference to the flowchart of an embodiment of the second process of determining whether the water pan 1 needs to be self-cleaned. Figure 3 The second process of determining whether the water pan 1 needs to be self-cleaned in the method of the present application will be further described below with reference to the flowchart of an embodiment of the second process of determining whether the water pan 1 needs to be self-cleaned.

[0071] In step S310, the current time of the electrolysis module 3 determined last time is retrieved.

[0072] In step S320, the difference between the current time of the electrolysis module 3 determined this time and the current time of the electrolysis module 3 determined last time is determined, which is recorded as the difference between the adjacent two current times of the electrolysis module 3, and it is determined whether the difference between the adjacent two current times of the electrolysis module 3 is greater than or equal to a preset dirt time threshold. The current time of the electrolysis module 3 determined last time is, for example, t 前 , the current time of the electrolysis module 3 determined this time is, for example, t 后 , and the preset dirt time threshold is, for example, threshold time t0.

[0073] In step S330, if it is determined that the difference between the adjacent two current times of the electrolysis module 3 is less than the preset dirt time threshold, it is determined that the water pan 1 does not need to be self-cleaned.

[0074] In step S340, if it is determined that the difference between the adjacent two current times of the electrolysis module 3 is greater than or equal to the preset dirt time threshold, it is determined that the water pan 1 needs to be self-cleaned.

[0075] The above embodiment mainly compares the actual time after the theoretical time is removed (i.e. t-tT ) and the threshold time t0 to indirectly determine the severity of the dirty degree of the water pan 1. In fact, since the service life of the hydrophilic coating of the air conditioner heat exchanger is relatively slow, that is, the service life of the hydrophilic coating before and after is not much different, that is, the degree of dirt of the heat exchanger can be determined by comparing the time length change of the actual current passing time t of the electrolysis module 3 before and after, thereby indirectly determining the degree of dirt of the water pan 1.

[0076] Specifically, the time before and after is defined as t 后 and t 前 : when t 后 -t 前 <t0, it is determined to be no, indicating that the air conditioner water pan 1 is not seriously dirty, and no related cleaning is required; when t 后 -t 前 ≥t0, it is determined to be yes, indicating that the air conditioner has been running for a long time, and the water pan 1 is likely to be dirty, and the water channel self-cleaning program needs to be run to ensure the user's healthy use.

[0077] At step S150, if it is determined that the water pan 1 needs to be self-cleaned, a preset self-cleaning program is executed to: in combination with the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner, control the electrolysis module 3 to perform electrolysis sterilization, and self-clean the water pan 1. Specifically, if it is determined that the water pan 1 needs to be self-cleaned, a preset self-cleaning program is executed; under the preset self-cleaning program, in combination with the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner, the electrolysis module 3 is controlled to perform electrolysis sterilization, and the water pan 1 is self-cleaned. Of course, if it is determined that the water pan 1 does not need to be self-cleaned, the air conditioner is controlled to maintain the current operation.

[0078] The water channel self-cleaning control scheme of the air conditioner provided by the scheme of the present application provides a high-efficiency and long-lasting air conditioner water channel purification scheme without consumables. The electrolysis module arranged on the water pan electrolyzes the condensate water generated during the operation of the air conditioner to generate active sterilization substances flowing through the entire water pan to achieve sterilization and purification of the water pan. The problem of water channel dirt odor that cannot be solved by air conditioner antibacterial water channel is solved, the water channel dirt odor is avoided, and the human body health is beneficial.

[0079] In some embodiments, the preset self-cleaning program is executed in step S150 to: in combination with the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner, control the electrolysis module 3 to perform electrolysis sterilization, and self-clean the water pan 1. The specific process, see the following exemplary explanation.

[0080] The following will be combined with Figure 4The flowchart of an embodiment of controlling the electrolysis module 3 for electrolytic sterilization in the method of the present invention further illustrates the specific process of controlling the electrolysis module 3 for electrolytic sterilization in step S150, including steps S410 to S450.

[0081] Step S410: Executing a preset condensation mode under a preset self-cleaning program: controlling the drain nozzle 2 of the water receiving tray 1 to be closed, such as controlling the valve of the drain nozzle 2 of the water receiving tray 1 to be closed, and determining a target condensation time for the air conditioner based on the current flow time of the electrolysis module 3. The target condensation time may be a first preset time t1.

[0082] Step S420: In the preset condensation mode, the compressor is controlled to continue to operate at the first frequency preset in the cooling mode, and the indoor fan is controlled to continue to operate at the first wind speed preset in the cooling mode.

[0083] Step S430, after running the target condensation time, determine the target electrolysis operation time of the electrolysis module 3 according to the target condensation time, the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner, and determine the target sterilization time after the electrolysis operation of the electrolysis module 3 is completed.

[0084] Step S440, after the preset condensation mode ends, execute the preset sterilization mode under the preset self-cleaning program: control the electrolysis module 3 to perform electrolysis operation according to the target electrolysis operation time to produce active bactericidal substances, and then maintain the target sterilization time after the electrolysis operation of the electrolysis module 3 ends, so that the active bactericidal substances can self-clean the water receiving tray 1.

[0085] Step S450, after the preset sterilization mode is completed, the preset drying mode is executed under the preset self-cleaning program: after the electrolysis operation of the electrolysis module 3 is completed and the electrolysis module 3 is maintained to be powered on for the target sterilization time, it is determined that the electrolysis sterilization of the electrolysis module 3 is completed, the air conditioner is controlled to turn off the cooling mode and turn on the heating mode, the compressor is controlled to operate at the second frequency preset in the heating mode, and the indoor fan is controlled to operate at the second wind speed preset in the heating mode, and the preset self-cleaning program is exited after the drying time is set to complete the self-cleaning of the water receiving tray 1.

[0086] like Figure 11 As shown, the air conditioner water tray 1 self-cleaning control method further includes: Step 4, controlling the air conditioner to perform self-cleaning of the water tray 1. The water tray 1 self-cleaning process includes condensation, electrolytic sterilization, and drying. These processes are performed sequentially, specifically including the first step of condensation, the second step of electrolytic sterilization, and the third step of drying, and the air conditioner is controlled to operate according to the corresponding parameters and modes.

[0087] Specifically, according to the user instruction or the running parameter of the air conditioner combined with the electrolysis module 3, the degree of dirt of the water pan 1 is automatically detected and judged, when the degree of dirt of the water pan 1 exceeds the necessary limit, the air conditioner is controlled to run at a certain wind speed, frequency and the like to produce a certain amount of condensed water according to the degree of pollution, and the running time of the electrolysis module 3 is combined to judge the hanging water amount and the effective condensed water amount, so as to determine the optimal running parameter of the electrolysis module 3, and finally the electrolysis module 3 is used to electrolyze the condensed water to generate enough active sterilization substances, and the air conditioner is controlled to run in the heating mode at a certain wind speed, frequency and the like to dry the moisture in the internal water pan 1 and the like of the air conditioner, so as to complete the self-cleaning process of the water pan 1.

[0088] In the scheme of the present application, the dirt condition of the water pan and the hanging water amount of the air conditioner are judged based on the running parameter of the electrolysis module, and the effective condensed water amount and the optimal running parameter of the air conditioner are determined based on the hanging water amount of the air conditioner; in this way, the electrolysis module is used to electrolyze the condensed water to realize the efficient and durable self-cleaning scheme of the water channel, the dirt condition of the water pan and the hanging water amount of the air conditioner are judged based on the running parameter of the electrolysis module and the optimal running parameter of the air conditioner is determined, which solves the problems that the water channel of the air conditioner is not convenient to install and replace the precipitated antibacterial module, the precipitated speed of the antibacterial substances is uncontrollable, and the long-acting property is poor, ensures the cleaning effect of the water channel, and can realize the efficient and durable self-cleaning of the water channel of the air conditioner.

[0089] In some embodiments, the specific process of determining the target electrolysis running time of the electrolysis module 3 and the target sterilization time after the electrolysis module 3 is electrolyzed in step S430 according to the target condensation time, the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner is as follows.

[0090] The specific process of determining the target electrolysis running time of the electrolysis module 3 and the target sterilization time after the electrolysis module 3 is electrolyzed in step S430 according to the target condensation time, the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner is as follows. Figure 5 An embodiment flowchart of the method of the present application is shown in the following

[0091] In step S510, the total condensed water amount generated by the air conditioner in the preset condensation mode is determined according to the indoor environment temperature and humidity of the air conditioner before and after the target condensation time (for example, the total water amount Q 总 ) generated by the air conditioner in the condensation mode.

[0092] In step S520, the hanging condensed water amount of the indoor heat exchanger (for example, the hanging water amount Q挂 ).

[0093] Step S530: The difference between the total amount of condensed water generated by the air conditioner in the preset condensation mode and the amount of condensed water hanging on the indoor heat exchanger is determined as the effective condensed water amount in the water receiving tray 1 (such as the effective condensed water amount Q under the current operating state of the air conditioner). 有 ).

[0094] Step S540 , based on the correspondence between the set condensed water volume and the set electrolysis time, the set electrolysis time corresponding to the set condensed water volume that is the same as the effective condensed water volume in the water receiving tray 1 in the correspondence is determined as the target electrolysis operation time of the electrolysis module 3 .

[0095] Step S550, based on the correspondence between the set electrolysis time, the set current passing time and the set sterilization time, the set electrolysis time that is the same as the target electrolysis operation time of the electrolysis module 3 and the set sterilization time corresponding to the set current passing time corresponding to the current passing time of the electrolysis module 3 in the correspondence are determined as the target sterilization time after the electrolysis operation of the electrolysis module 3 is completed.

[0096] like Figure 11 As shown, the self-cleaning control method of the water receiving tray 1 of the air conditioner further includes: in step 4, step 41, the first step of the condensation process.

[0097] The valve of the drain nozzle 2 of the water receiving pan 1 of the air conditioner is controlled to be closed, and the internal fan 8 and the compressor maintain the current mode and parameters (see step 31 for details) until the running time under the first preset condition reaches the first preset time t1, so that sufficient condensed water is generated between the fins and gathered in the water receiving pan 1.

[0098] The first preset time t1 is related to the degree of contamination of the water tray 1, that is, t1=f1(tt T ), is affected by the structure of the air conditioner water tray 1 (limiting the maximum condensation volume to prevent overflow) and the ambient temperature and humidity (the amount of moisture in the air, limiting the maximum possible condensation volume). For example: Theoretically, the more serious the dirt (in terms of the length of the water hanging time tt T Characterization), the more effective substances are needed, that is, the more condensed water, the longer the first preset time (that is, the condensation time), t1=f1(tt T ) can be a linear relationship but is not limited to a linear relationship, such as t1=m1*(tt T ), m1 is a constant. Further, the environmental parameter detection device of the air conditioner is controlled to detect the ambient temperature and humidity T1 and RH1 at the end of the first preset time t1, and the total amount of water Q generated by the air conditioner in the condensation mode can be determined by combining the ambient temperature and humidity T0 and RH0 at the start of self-cleaning. 总Among them, determine the total amount of water Q generated by the air conditioner running in condensation mode 总 According to the psychrometric diagram, the ambient temperature, relative humidity and moisture content parameters are interrelated. If the temperature and relative humidity are known, the change in moisture content can be determined. The change in moisture content before and after is the amount of condensed water.

[0099] Combined with the above electrolysis module 3 start operation time t to determine the air conditioner hanging water volume Q 挂 , the amount of water hanging Q 挂 The environmental parameter detection device of the air conditioner detects the ambient temperature and humidity T when the electrolysis module 3 is turned on for the operation time t. t RH t , and can be determined by combining the ambient temperature and humidity T0 and RH0 when self-cleaning starts. 挂 When the electrolysis module 3 is turned on, it is taken as the time point. That is, there is condensed water before the electrolysis module 3 but the electrolysis module 3 is not working. Then this part of the condensed water is hanging on the air conditioner and has not flowed down.

[0100] Combined with the water volume Q of the air conditioner 挂 And the total water volume Q 总 The effective condensed water volume Q of the air conditioner in the current operating state can be determined 有 , and Q 有 =Q 总 -Q 挂 .

[0101] The operating parameters of the electrolysis module 3 can be further optimized and determined in combination with the effective condensed water volume. The operating parameters are mainly the target electrolysis operation time t 电 , that is, t 电 =f2(Q 有 ). For example: 电 =f2(Q 有 ) can be expressed linearly but not limited to linearity, i.e. t 电 =m2*Q 有 , that is to say, the more condensed water there is, the longer the electrolysis time will be, and m2 is a constant.

[0102] Step 42: the second electrolytic sterilization process.

[0103] Control the electrolysis module 3 according to the electrolysis time t 电 Run to produce enough active bactericidal substances and maintain for a certain time t 维 Here, after the electrolysis is completed, the solution is left to stand for a period of time. The purpose of electrolysis is to produce effective substances and to purify the solution at the same time. After the electrolysis is completed, the effective substances still exist and can continue to play a role for a period of time. At this time, no electrolysis is continued. 维 and electrolysis time t电 and the degree of contamination of the water tray 1 (t-t T characterization) is related, i.e. t 维 = f1(t 电 , t-t T ). The purpose of maintaining is to further achieve the purification effect, the dirty condition (t-t T ) determines the time of electrolysis and maintenance, but electrolysis has a limit (the water volume determines the limit of effective substances generated by electrolysis), so a certain maintenance time is needed to ensure the purification effect. Because the above has considered the dirty condition to determine the amount of condensed water, the purpose of maintenance is more a layer of protection, t 维 = f1(t 电 , t-t T ) can be expressed by a linear, such as t 维 = m3*t 电 + m4(t-t T ), or it can be directly controlled by a fixed value, m3 and m4 are both constants.

[0104] Step 43, the drying process of the third step.

[0105] End the purification process, open the valve of the drain 2 of the water tray 1 of the air conditioner, drain the condensed water, at the same time, the air conditioner is converted from the refrigeration mode to the heating mode, and the inner fan is controlled to run at the second wind speed v2, and the compressor is controlled to run at the second frequency p2, until the running time under the second preset condition reaches the second preset time t2, so that the condensed water between the fins and in the water tray 1 is dried, avoiding the problem of the condensed water remaining in the water tray 1 causing the water tray 1 to be dirty and contaminated by microorganisms. The wind speed and the frequency here are still used to determine the tube temperature, and the second preset condition is that the tube temperature reaches a certain temperature, and the running time under the second preset condition is different from the condensed water volume, and the purpose is to ensure that the condensed water is completely dried. Therefore, the parameters here are variable, the adjustment of the wind speed and the frequency affects the tube temperature, but the tube temperature can be high or low, a little higher will blow for a little less, a little lower will blow for a little more; more water will blow for a little more, less water will blow for a little less.

[0106] In the scheme of the present application, the dirty condition of the water tray and the water hanging amount of the air conditioner are determined based on the running parameters of the electrolysis module, and then the effective condensed water amount and the optimal running parameters of the air conditioner are determined based on the water hanging amount of the air conditioner, that is, the effective water amount of the condensed water is determined to determine the parameter control of the electrolysis module 3, realizing the self-cleaning of the water tray 1 of the air conditioner, and long-acting cleaning effect can be achieved.

[0107] Due to the scheme of the present application, when the air conditioner is started, the degree of dirt of the water pan 1 can be automatically detected and judged in combination with the operating parameters of the electrolysis module 3, and when it is judged that purification is needed, the optimal operating parameters are determined based on the operating parameters of the electrolysis module 3, the water hanging amount and the effective condensate water amount of the air conditioner are determined, then the condensate water is electrolyzed by the electrolysis module 3 and maintained for a certain time, so that the harmful microorganisms are fully purified, and then the air conditioner is controlled to run in the heating mode at a certain air speed, frequency, etc., to dry the moisture in the water pan 1 and other areas inside the air conditioner, complete the self-cleaning process of the water pan 1, realize the persistent self-cleaning of the water pan 1, and achieve efficient and persistent self-cleaning without consumables, thereby ensuring the health of the user.

[0108] The technical scheme of the present embodiment is adopted, the electrolysis module is arranged in the water channel of the water pan below the evaporator in the indoor unit of the air conditioner, in the case that the air conditioner is started and runs in the cooling mode, the electrolysis module is started, and whether the self-cleaning program of the air conditioner needs to be started is judged according to the actual time when the electrolysis module has current passing through; in the case that the self-cleaning program of the air conditioner needs to be started, the valve of the drain nozzle of the water pan is controlled to be closed to run in the condensation mode, the indoor fan and the compressor are controlled to continue running according to the operating parameters in the cooling mode for a first preset time, the total water amount generated by the air conditioner running in the condensation mode is determined according to the indoor environment temperature and humidity before and after the first preset time, the water hanging amount of the indoor heat exchanger is determined according to the actual time when the electrolysis module has current passing through and the indoor environment temperature and humidity, the difference between the total water amount and the water hanging amount is determined as the effective condensate water amount, the target electrolysis running time and the maintenance time of the electrolysis module are determined according to the effective condensate water amount, and then the drying mode is executed to complete the self-cleaning of the water channel of the water pan; thereby, the condensate water is electrolyzed by the electrolysis module arranged on the water pan to sterilize and purify the water pan, avoid dirt and odor in the water channel, and be beneficial to human health.

[0109] According to the embodiments of the present application, a control device of an air conditioner corresponding to a control method of the air conditioner is also provided. Referring to Figure 6 The device of the present application has an indoor unit and an outdoor unit, the indoor unit has an indoor heat exchanger and an indoor fan, and the outdoor unit has a compressor; a water pan 1 is arranged below the indoor heat exchanger, and an electrolysis module 3 is arranged in the water channel of the water pan 1; when the electrolysis module 3 is started, the cathode and the anode of the electrolysis module 3 are in contact with the water channel of the water pan 1, and the condensate water is conducted, so that the electrolysis module 3 can generate active sterilization substances to perform self-cleaning on the water pan 1.

[0110] In some embodiments, the water channel of the water pan 1 has a high position and a low position; the number of the electrolysis modules 3 is more than one; and the more than one electrolysis modules 3 are installed at the high position and / or the low position of the water channel of the water pan 1.

[0111] The present invention proposes a self-cleaning control scheme for the water tray of an air conditioner, which aims to solve the problems of the water tray being dirty and smelly and difficult to clean in related schemes. In order to achieve the above purpose, Figure 8 、 Figure 9 、 Figure 10 As shown, the solution of the present invention first provides a water tray purification device for an air conditioner. Figure 8 The diagram below is a schematic diagram of the structure of the water tray purification device for the air conditioner. Figure 8 As shown, the electrolysis module is installed upstream of the waterway to achieve the waterway cleaning effect required by the solution of the present invention. Figure 9 Schematic diagram of the structure of the electrolysis module. Figure 10 Schematic diagrams of the installation structure of the electrolysis module, wherein (a) is a schematic diagram of the installation structure 1 of the electrolysis module, and (b) is a schematic diagram of the installation structure 2 of the electrolysis module.

[0112] like Figure 8 and Figure 10 As shown, the air conditioner includes an indoor unit and an outdoor unit. The indoor unit has an air inlet 4, an internal fan 8, an air outlet 5 and an air guide plate 9. The air duct connected to the air inlet 4 and the air outlet 5 is provided with a water receiving tray 1 and an environmental parameter detection device (such as a temperature and humidity sensor 6). The outdoor unit has components such as a compressor, an external fan and a condenser. An evaporator 7 is installed above the water receiving tray 1. When the air conditioner is in cooling operation, the evaporator 7 will produce condensed water, which will flow down along the fins of the evaporator 7 and converge into the water receiving tray 1. It will flow from the high position 11 of the water receiving tray to the low position 12 of the water receiving tray 1, and finally be discharged to the outside through the drain nozzle 2 and the drain pipe of the air conditioner. Optionally, the drain nozzle 2 has a controllable opening and closing valve, and the opening and closing of the valve can control the retention of condensed water in the water receiving tray 1. Figure 10 The two arrangements and quantities shown are based on the drainage differences of the air conditioner water tray 1. The purpose is to allow the electrolytic condensed water to flow through the entire area of ​​the water tray 1. The environmental parameter detection device is an air temperature and humidity detection unit for detecting indoor ambient temperature and humidity, including a temperature sensor, a humidity sensor, or a temperature and humidity sensor 6.

[0113] like Figure 9As shown, the water pan 1 is provided with a water pan purifying device. The water pan purifying device is a water electrolysis module 3, which comprises a module main body and electrodes, and a power line 33; wherein the electrodes are, for example, a first electrode 31 (such as a cathode) and a second electrode 32 (such as an anode). The module main body is used to provide a suitable discharge voltage, and the electrodes are noble metal electrodes such as titanium electrodes (Ti) and platinum electrodes (Pt) with high catalytic activity. When a certain voltage is applied, the electrodes are conductive, so that the electrolysis of water can produce active bactericidal substances such as hydroxyl radicals and hypochlorous acid with strong oxidizing properties, which can effectively kill bacteria and other microorganisms. At the same time, based on the working principle of the electrolysis module 3, when the electrolysis module 3 works at the rated voltage, it is necessary to ensure that the two discharge electrodes (cathode and anode) are conductive to each other to exert the electrolysis effect. That is, even if the electrolysis module 3 is powered, if there is no water near the electrodes, the electrolysis module 3 cannot work normally, which is manifested as a stable voltage and a current of 0. When the water amount is sufficient to make the electrodes conductive, the current has a value, and gradually increases to the rated current and remains stable with the increase of the water amount. By using this characteristic, it can be judged whether there is water by the time when the accessory starts to work. For an air conditioner, condensate water is generated during the refrigeration process, and the condensate water flows down the evaporator 7 fins and collects in the water pan. Because the evaporator 7 fins are hydrophilic fins, theoretically, the condensate water generated by the air conditioner will quickly spread on the fins and flow down, that is, as long as the condensate water is generated, it will flow into the water pan below in time, and the electrolysis module 3 contacts the condensate water to generate a certain current value. The time interval from the start of the air conditioner to the generation of the electrolysis module 3 value is very short and can be ignored. The above is an ideal case. In fact, the hydrophilicity of the fins will decrease to a certain extent during the use of the air conditioner, and the condensate water generated by the air conditioner will be retained on the surface of the heat exchanger (such as the evaporator 7) due to problems such as dust accumulation on the surface of the heat exchanger, that is, the water hanging phenomenon occurs. That is to say, for an air conditioner in actual use, the condensate water generated by the air conditioner will first be retained (water hanging) on the heat exchanger, and will flow into the water pan after reaching a certain thickness (carrying capacity), that is, there will be a certain time interval from the start of the air conditioner to the generation of the electrolysis module 3 value. Obviously, for air conditioners with different dirt conditions and different fin service lives, the water hanging conditions are different. Considering that the service life of the hydrophilic coating of the evaporator 7 fins is relatively stable, different interval times correspond to different air conditioner dirt conditions, and the more serious the water hanging condition, the more obvious the dirt, and the longer the interval time.

[0114] In the scheme of the present application, the number of electrolysis modules 3 is determined according to the structure of the water pan 1 to ensure that the electrolysis active substance can flow through the entire area of the water pan 1. Preferably, the electrolysis modules 3 are arranged at a high position of the water pan 1, so that the number of electrolysis modules 3 can be reduced to control the cost, and at the same time, the electrolysis active substance can flow through the entire water pan 1 with the condensed water to ensure the sterilization and purification effect on the entire area. Alternatively, when the structure of the drain nozzle 2 capable of being controlled to open and close is used, because the condensed water can be kept in the water pan 1 for a long time when the drain nozzle 2 is closed, the electrolysis modules 3 arranged at any position of the water pan 1 can well realize electrolysis to ensure the purification effect.

[0115] In the scheme of the present application, as shown in Figure 6 The control device of the air conditioner comprises an acquisition unit 102 and a control unit 104.

[0116] The control unit 104 is configured to, in the case that the air conditioner is powered on and the cooling mode is started, control the compressor to operate at a first frequency preset in the cooling mode and control the indoor fan to operate at a first wind speed preset in the cooling mode, and in the case that the self-cleaning mode of the air conditioner is started, control the electrolysis module 3 to start and begin timing. The specific functions and processes of the control unit 104 are described in step S110. Figure 11 The flowchart of the self-cleaning control method of the water pan 1 of the air conditioner is shown in Figure 11 The self-cleaning control method of the water pan 1 of the air conditioner comprises the following steps: step 1, the air conditioner is powered on and operated, and then step 2 is performed. Step 2, the user's self-cleaning instruction of the water pan 1 is acquired, and then step 3 is performed.

[0117] The acquisition unit 102 is configured to acquire the indoor environment temperature and humidity of the air conditioner and acquire the current of the electrolysis module 3. The specific functions and processes of the acquisition unit 102 are described in step S120.

[0118] It is determined whether the current of the electrolysis module 3 changes from 0 to greater than 0, and when it is determined that the current of the electrolysis module 3 changes from 0 to greater than 0, the timing is stopped, the time from the start of the electrolysis module 3 to the current passing through is obtained, which is recorded as the current passing time of the electrolysis module 3 (such as the actual current passing time t of the electrolysis module 3), and the current passing time of the electrolysis module 3 within a set time period is stored. The specific functions and processes of the control unit 104 are also described in step S130.

[0119] The control unit 104 is further configured to determine whether the water pan 1 needs to be self-cleaned according to the current passing time of the electrolysis module 3. The specific functions and processes of the control unit 104 are also described in step S140. As shown in Figure 11As shown, the self-cleaning control method for the air conditioner water tray 1 further includes: Step 3, detecting and obtaining the degree of contamination of the air conditioner water tray 1, and determining whether a self-cleaning program needs to be executed, followed by Step 4. The degree of contamination of the water tray 1 is strongly correlated with the degree of contamination of the heat exchanger, which in turn is strongly correlated with the time interval during which current actually flows through the electrolysis module 3. Based on this, the degree of contamination of the water tray 1 can be indirectly determined based on the time interval during which current actually flows through the electrolysis module 3.

[0120] In some embodiments, the control unit 104 determines whether the water receiving tray 1 needs to be self-cleaned based on the current passing time of the electrolysis module 3, including:

[0121] The control unit 104 is further configured to determine whether the difference between the current passing time of the electrolysis module 3 and a preset current passing time threshold is greater than or equal to a preset contamination time threshold; wherein the preset current passing time threshold is such as the theoretical time length t T , a preset contamination time threshold value such as threshold duration t0. The specific functions and processing of the control unit 104 are also referred to step S210.

[0122] The control unit 104 is further configured to determine that the water receiving tray 1 does not need to be self-cleaned if it is determined that the difference between the current flow time of the electrolysis module 3 and a preset current flow time threshold is less than a preset contamination time threshold. The specific functions and processing of the control unit 104 are further described in step S220.

[0123] The control unit 104 is further configured to determine that the water receiving tray 1 needs to be self-cleaned if it is determined that the difference between the current flow time of the electrolysis module 3 and a preset current flow time threshold is greater than or equal to a preset contamination time threshold. The specific functions and processing of the control unit 104 are further described in step S230.

[0124] like Figure 11 As shown, the self-cleaning control method of the water receiving tray 1 of the air conditioner further includes: in step 3, the dirtiness of the water receiving tray 1 can be indirectly judged by the time interval during which the electrolysis module 3 actually has current passing therethrough, specifically including:

[0125] Step 31, control the inner fan of the air conditioner to run at a first wind speed v1, and control the compressor to run at a first frequency p1, until the air conditioner runs for a certain time under a first preset condition, so that condensation can be generated between the fins of the evaporator 7 and gathered into the water pan 1; the first frequency p1 corresponds to the ambient temperature, and the first preset condition is that the tube temperature of the evaporator 7 is less than or equal to a first temperature, which corresponds to the dew point temperature corresponding to the air; the ambient temperature and the dew point temperature are detected and obtained by the ambient temperature and humidity sensor, and the first frequency p1 is determined accordingly, and then step 32 is performed.

[0126] Step 32, synchronously control the electrolysis module 3 to be powered on and run, and detect and obtain the actual time t during which current flows through the electrolysis module 3; wherein the zero point is the start time of the electrolysis module 3, and the above-mentioned time t is the time interval from the zero point, and then step 33 is performed.

[0127] Step 33, by collecting the water hanging situation of the air conditioner under different dirty environments of the heat exchanger, considering the water hanging situation caused by the life attenuation of the hydrophilic fin under normal use, and combining the expert experience and the acceptance degree of consumers to dirt, the dirty judgment threshold time t0 of the heat exchanger can be determined.

[0128] Figure 12 The water hanging amount diagram of the air conditioner under different life attenuations is shown in Figure 13 The dirty situation diagram of the air conditioner under different water hanging amounts is shown in Figure 12 The water hanging amount diagram (represented by water hanging time) under different life attenuations (represented by cumulative running time of the air conditioner) is shown in Figure 13 The dirty situation diagram under the same water hanging amount (represented by water hanging time) is shown in

[0129] t T is the theoretical time, and the actual time t of the electrolysis module 3 after removing the theoretical t T is t-t T . By comparing the relationship between the actual time (i.e. t-t T ) after removing the theoretical time and the threshold time t0, the severity of dirt can be determined, that is, by judging whether t-t T ≥ t0, whether self-cleaning needs to be performed is determined: if yes, step 4 is executed to run the water channel self-cleaning program, otherwise the air conditioner is controlled to maintain the current running.

[0130] In step 33, when t-t T When t-t T ≥t0, it is judged as yes, which means that the air conditioner has been running for a long time, and the possibility of dirt pollution of the water pan 1 is high, so the water channel self-cleaning program needs to be run to ensure the healthy use of the user.

[0131] When t-t T ≥t0, it is judged as yes, which means that the air conditioner has been running for a long time, and the possibility of dirt pollution of the water pan 1 is high, so the water channel self-cleaning program needs to be run to ensure the healthy use of the user.

[0132] Step 34, when it is judged that the air conditioner does not need to execute the self-cleaning instruction of the water pan 1, the air conditioner stops the current cooling operation mode and waits or runs according to the user's set mode; when it is judged that the air conditioner needs to execute the self-cleaning instruction of the water pan 1, the air conditioner executes the next step, i.e., step 4.

[0133] In the scheme of the present application, when the air conditioner is running, the degree of dirt pollution of the water pan can be automatically detected and judged in combination with the running parameters of the electrolysis module, and when it is judged that purification is needed, the hanging water amount and the effective condensate water amount of the air conditioner are determined based on the running parameters of the electrolysis module to determine the optimal running parameters, then the electrolysis module is used to electrolyze the condensate water and maintain for a certain period of time, so that harmful microorganisms are fully purified, and then the air conditioner is controlled to run in a heating mode at a certain air speed, frequency, etc. to dry the moisture in the water pan and other areas inside the air conditioner, completing the self-cleaning process of the water pan, realizing the persistent self-cleaning of the water pan, and being efficient, persistent and without consumables, thereby ensuring the health of the user.

[0134] In some embodiments, the control unit 104 determines whether the water pan 1 needs to be self-cleaned according to the current passing time of the electrolysis module 3, and further comprises:

[0135] The control unit 104 is specifically configured to retrieve the current passing time of the electrolysis module 3 determined last time. The specific functions and processes of the control unit 104 are also described in step S310.

[0136] The control unit 104 is specifically further configured to determine a difference between the current time of current passing of the electrolysis module 3 and the time of current passing of the electrolysis module 3 determined last time, denoted as a difference between adjacent two times of current passing of the electrolysis module 3, and determine whether the difference between adjacent two times of current passing of the electrolysis module 3 is greater than or equal to a preset dirt time threshold. The time of current passing of the electrolysis module 3 determined last time is, for example, t 前 , the current time of current passing of the electrolysis module 3 is, for example, t 后 , and the preset dirt time threshold is, for example, a threshold time length t0. The specific functions and processes of the control unit 104 are also described in step S320.

[0137] The control unit 104 is specifically further configured to determine that the water pan 1 does not need to be self-cleaned if it is determined that the difference between adjacent two times of current passing of the electrolysis module 3 is less than the preset dirt time threshold. The specific functions and processes of the control unit 104 are also described in step S330.

[0138] The control unit 104 is specifically further configured to determine that the water pan 1 needs to be self-cleaned if it is determined that the difference between adjacent two times of current passing of the electrolysis module 3 is greater than or equal to the preset dirt time threshold. The specific functions and processes of the control unit 104 are also described in step S340.

[0139] The above embodiment mainly indirectly determines the dirt severity of the water pan 1 by comparing the relationship between the actual time length after the theoretical time length (i.e., t-t T ) and the threshold time length t0. In fact, since the hydrophilic coating life of the air conditioner heat exchanger decays relatively slowly, i.e., the hydrophilic coating life changes little before and after, it means that the dirt degree of the heat exchanger can be determined by comparing the time length change of the actual current passing time t of the electrolysis module 3 before and after, thereby indirectly determining the dirt degree of the water pan 1.

[0140] Specifically, define the time lengths before and after as t 后 and t 前 : when t 后 -t 前 <t0, it is determined to be no, indicating that the dirt condition of the water pan 1 of the air conditioner is not serious, and no related cleaning is needed; when t 后 -t 前 ≥t0, it is determined to be yes, indicating that the air conditioner has been running for a long time, the water pan 1 is likely to be dirty, and the water channel self-cleaning program needs to be run to ensure the user's healthy use.

[0141] The control unit 104 is further configured to, if it is determined that the water pan 1 needs to be self-cleaned, execute a preset self-cleaning program to control the electrolysis module 3 to electrolyze and sterilize in combination with the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner, so as to self-clean the water pan 1. Specifically, if it is determined that the water pan 1 needs to be self-cleaned, a preset self-cleaning program is executed. Under the preset self-cleaning program, the electrolysis module 3 is controlled to electrolyze and sterilize in combination with the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner, so as to self-clean the water pan 1. Of course, if it is determined that the water pan 1 does not need to be self-cleaned, the air conditioner is controlled to maintain the current operation. The specific functions and processes of the control unit 104 are also described in step S150.

[0142] The water channel self-cleaning control scheme of the air conditioner provided by the scheme of the present application provides a high-efficiency, long-lasting and non-waste material water channel purification scheme of the air conditioner. The condensate generated by the operation of the air conditioner is electrolyzed by the electrolysis module arranged on the water pan to generate active sterilization substances flowing through the entire water pan to achieve sterilization and purification of the water pan. The problem of dirty odor of the water channel of the air conditioner, which cannot be solved by the antibacterial water channel of the air conditioner, is solved, the dirty odor of the water channel is avoided, and the human health is beneficial.

[0143] In some embodiments, the control unit 104 executes a preset self-cleaning program to control the electrolysis module 3 to electrolyze and sterilize in combination with the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner, so as to self-clean the water pan 1, including:

[0144] The control unit 104 is further configured to execute a preset condensation mode under the preset self-cleaning program: control the drain nozzle 2 of the water pan 1 to be closed, such as controlling the valve of the drain nozzle 2 of the water pan 1 to be closed, and determine the target condensation time of the air conditioner according to the current passing time of the electrolysis module 3. The target condensation time is, for example, a first preset time t1. The specific functions and processes of the control unit 104 are also described in step S410.

[0145] The control unit 104 is further configured to, under the preset condensation mode, control the compressor to continue to operate at the first frequency preset in the cooling mode and control the indoor fan to continue to operate at the first wind speed preset in the cooling mode. The specific functions and processes of the control unit 104 are also described in step S420.

[0146] The control unit 104 is specifically further configured to determine a target electrolysis operation time of the electrolysis module 3 and a target sterilization time after the electrolysis operation of the electrolysis module 3 ends according to the target condensation time, the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner after the target condensation time is run. The specific functions and processes of the control unit 104 are also described in step S430.

[0147] The control unit 104 is specifically further configured to execute a preset sterilization mode under a preset self-cleaning program after the preset condensation mode ends: control the electrolysis module 3 to perform electrolysis operation for the target electrolysis operation time to produce active sterilization substances, and then maintain for the target sterilization time after the electrolysis operation of the electrolysis module 3 ends, so that the active sterilization substances perform self-cleaning on the water pan 1. The specific functions and processes of the control unit 104 are also described in step S440.

[0148] The control unit 104 is specifically further configured to execute a preset drying mode under a preset self-cleaning program after the preset sterilization mode ends: after the electrolysis operation of the electrolysis module 3 ends and the electrolysis module 3 continues to maintain power for the target sterilization time, it is determined that the electrolysis sterilization of the electrolysis module 3 ends, the air conditioner is controlled to close the cooling mode and open the heating mode, the compressor is controlled to operate at a preset second frequency in the heating mode, the indoor fan is controlled to operate at a preset second wind speed in the heating mode, and the self-cleaning program is exited after the drying time is set, completing the self-cleaning of the water pan 1. The specific functions and processes of the control unit 104 are also described in step S450.

[0149] As shown in Figure 11 The water pan 1 self-cleaning control method of the air conditioner further includes: step 4, controlling the air conditioner to perform water pan 1 self-cleaning. The water pan 1 self-cleaning process includes condensation, electrolysis sterilization and drying processes. The processes are performed in sequence, specifically including: the first step of condensation process, the second step of electrolysis sterilization process and the third step of drying process, controlling the air conditioner to operate according to the corresponding parameters and modes.

[0150] Specifically, according to the user instruction or the running parameter of the air conditioner combined with the electrolysis module 3, the degree of dirt of the water pan 1 is automatically detected and judged, when the degree of dirt of the water pan 1 exceeds the necessary limit, the air conditioner is controlled to run at a certain wind speed, frequency and the like to produce a certain amount of condensed water according to the degree of pollution, and the running time of the electrolysis module 3 is combined to judge the hanging water amount and the effective condensed water amount to determine the optimal running parameter of the electrolysis module 3, and finally the electrolysis module 3 is used to electrolyze the condensed water to generate enough active sterilization substances, and maintain for a certain time to fully purify the harmful microorganisms, and then the air conditioner is controlled to run in the heating mode at a certain wind speed, frequency and the like to dry the moisture in the internal water pan 1 and the like of the air conditioner, and the self-cleaning process of the water pan 1 is completed.

[0151] In the scheme of the present application, the dirt condition of the water pan and the hanging water amount of the air conditioner are judged based on the running parameter of the electrolysis module, and the effective condensed water amount and the optimal running parameter of the air conditioner are determined based on the hanging water amount of the air conditioner; in this way, the electrolysis module is used to electrolyze the condensed water to realize the efficient and durable self-cleaning scheme of the water channel without consumables, the dirt condition of the water pan and the hanging water amount of the air conditioner are judged based on the running parameter of the electrolysis module and the optimal running parameter of the air conditioner is determined, which solves the problems of inconvenient installation and replacement of the water channel precipitation type antibacterial module of the air conditioner, uncontrollable precipitation speed of the antibacterial substances and poor long-acting property, guarantees the cleaning effect of the water channel, and can realize efficient and durable water channel purification of the air conditioner without consumables.

[0152] In some embodiments, the control unit 104 determines the target electrolysis running time of the electrolysis module 3 according to the target condensation time, the current passing time of the electrolysis module 3 and the indoor environment temperature and humidity of the air conditioner, and determines the target sterilization time after the electrolysis module 3 ends electrolysis running, including:

[0153] The control unit 104 is specifically further configured to determine the total condensed water amount (such as the total water amount Q 总 ) generated by the air conditioner in the preset condensation mode according to the indoor environment temperature and humidity of the air conditioner before and after the target condensation time. The specific functions and processes of the control unit 104 are also referred to step S510.

[0154] The control unit 104 is specifically further configured to determine the hanging condensed water amount (such as the hanging water amount Q 挂 ) of the indoor heat exchanger according to the indoor environment temperature and humidity of the air conditioner before and after the current passing time of the electrolysis module 3. The specific functions and processes of the control unit 104 are also referred to step S520.

[0155] The control unit 104 is further configured to determine the difference between the total amount of condensed water generated by the air conditioner in the preset condensation mode and the amount of condensed water hanging on the indoor heat exchanger as the effective condensed water amount in the water receiving tray 1 (such as the effective condensed water amount Q in the current operating state of the air conditioner). 有 ). The specific functions and processing of the control unit 104 are also shown in step S530.

[0156] The control unit 104 is further configured to determine, based on the correspondence between the set condensed water volume and the set electrolysis time, the set electrolysis time corresponding to the set condensed water volume that is equal to the effective condensed water volume in the water receiving tray 1 as the target electrolysis operation time of the electrolysis module 3. The specific functions and processing of the control unit 104 are further described in step S540.

[0157] The control unit 104 is further configured to determine, based on the correspondence between the set electrolysis time, the set current flow time, and the set sterilization time, the set electrolysis time that is equal to the target electrolysis operation time of the electrolysis module 3 and the set sterilization time corresponding to the set current flow time corresponding to the current flow time of the electrolysis module 3 as the target sterilization time after the electrolysis operation of the electrolysis module 3 ends. The specific functions and processing of the control unit 104 are further described in step S550.

[0158] like Figure 11 As shown, the self-cleaning control method of the water receiving tray 1 of the air conditioner further includes: in step 4, step 41, the first step of the condensation process.

[0159] The valve of the drain nozzle 2 of the water receiving pan 1 of the air conditioner is controlled to be closed, and the internal fan 8 and the compressor maintain the current mode and parameters (see step 31 for details) until the running time under the first preset condition reaches the first preset time t1, so that sufficient condensed water is generated between the fins and gathered in the water receiving pan 1.

[0160] The first preset time t1 is related to the degree of contamination of the water tray 1, that is, t1=f1(tt T ), is affected by the structure of the air conditioner water tray 1 (limiting the maximum condensation volume to prevent overflow) and the ambient temperature and humidity (the amount of moisture in the air, which limits the maximum possible condensation volume). Furthermore, the environmental parameter detection device that controls the air conditioner detects the ambient temperature and humidity T1 and RH1 at the end of the first preset time t1, and combines the ambient temperature and humidity T0 and RH0 at the start of self-cleaning to determine the total water volume Q generated by the air conditioner in the condensation mode. 总 .

[0161] Combined with the above electrolysis module 3 start operation time t to determine the air conditioner hanging water volume Q 挂, the amount of water hanging Q 挂 The environmental parameter detection device of the air conditioner detects the ambient temperature and humidity T when the electrolysis module 3 is turned on for the operation time t. t RH t , and can be determined by combining the ambient temperature and humidity T0 and RH0 when self-cleaning starts.

[0162] Combined with the water volume Q of the air conditioner 挂 And the total water volume Q 总 The effective condensed water volume Q of the air conditioner in the current operating state can be determined 有 , and Q 有 =Q 总 -Q 挂 .

[0163] The operating parameters of the electrolysis module 3 can be further optimized and determined in combination with the effective condensed water volume. The operating parameters are mainly the target electrolysis operation time t 电 , that is, t 电 =f2(Q 有 ).

[0164] Step 42: the second electrolytic sterilization process.

[0165] Control the electrolysis module 3 according to the electrolysis time t 电 Run to produce enough active bactericidal substances and maintain for a certain time t 维 So that harmful microorganisms are fully purified. 维 and electrolysis time t 电 And the degree of contamination of the water tray 1 (using tt T Representation) related, that is, t 维 =f1(t 电 、tt T ).

[0166] Step 43: the third step of the drying process.

[0167] After the purification process is finished, the valve of the drain nozzle 2 of the water receiving pan 1 of the air conditioner is controlled to open, and the condensed water is discharged. At the same time, the air conditioner is switched from the cooling mode to the heating mode, and the internal fan is controlled to operate at the second wind speed v2, and the compressor is controlled to operate at the second frequency p2 until the operating time under the second preset condition reaches the second preset time t2, so that the condensed water between the fins and in the water receiving pan 1 is dried, so as to avoid the condensed water remaining in the water receiving pan 1, causing the water receiving pan 1 to be dirty and contaminated by microorganisms, and other problems such as the recurrence of problems.

[0168] In the scheme of the present application, the dirt condition of the water pan and the water hanging amount of the air conditioner are determined based on the operating parameters of the electrolysis module, and then the effective condensate water amount and the optimal operating parameters of the air conditioner are determined based on the water hanging amount of the air conditioner, that is, the effective water amount of the condensate water is determined and then the parameter control of the electrolysis module 3 is determined, so as to realize the self-cleaning of the water pan 1 of the air conditioner and achieve long-term cleaning effect.

[0169] Due to the scheme of the present application, when the air conditioner is started, the dirt degree of the water pan 1 can be automatically detected and determined in combination with the operating parameters of the electrolysis module 3, and when it is determined that purification is needed, the water hanging amount and the effective condensate water amount of the air conditioner are determined based on the operating parameters of the electrolysis module 3 to determine the optimal operating parameters, and then the electrolysis module 3 is used to electrolyze the condensate water and maintain for a certain time, so as to sufficiently purify the harmful microorganisms, and then the air conditioner is controlled to run in the heating mode at a certain air speed, frequency, etc. to dry the moisture in the internal water pan 1 and other areas of the air conditioner, complete the self-cleaning process of the water pan 1, realize the long-term self-cleaning of the water pan 1, and achieve high efficiency and long-term self-cleaning without consumables, thereby ensuring the health of the user.

[0170] Since the processing and functions realized by the device of the present embodiment basically correspond to the embodiments, principles and examples of the foregoing method, details not described in the description of the present embodiment can be referred to the related description in the foregoing embodiments, which will not be repeated here.

[0171] According to the embodiments of the present application, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner can include the control device of the air conditioner described above.

[0172] Figure 14 The structure diagram of the self-cleaning control device for the water pan 1 of the air conditioner. In order to achieve the above-mentioned purpose, as shown in Figure 14 The control device of the air conditioner for completing the above-mentioned control method is also provided in the scheme of the present application. The control device includes a storage module, a processing module, and a control program of the air conditioner stored in the storage module and executable on the processing module. When the control program of the air conditioner is executed by the processing module, each step of the control method of the air conditioner is realized.

[0173] In order to achieve the above-mentioned purpose, the scheme of the present application further provides an air conditioner. The air conditioner includes the electrolysis degerming module and the control device described above, and the control device can complete the control method by the electrolysis degerming module in combination with the function of the air conditioner to achieve the desired effect of the present patent.

[0174] Since the processing and functions realized by the air conditioner of the present embodiment basically correspond to the embodiments, principles and examples of the foregoing device, details not described in the description of the present embodiment can be referred to the related description in the foregoing embodiments, which will not be repeated here.

[0175] According to an embodiment of the present application, a computer program product corresponding to the air conditioner is also provided, comprising a computer program which, when executed by a processor, implements the steps of the control method of the air conditioner described above.

[0176] Since the processing and functions realized by the product of the present embodiment are basically corresponding to the foregoing embodiments, principles and examples of the air conditioner, the descriptions of the present embodiment which are not elaborated can be referred to the related descriptions in the foregoing embodiments, and will not be repeated here.

[0177] According to an embodiment of the present application, a storage medium corresponding to the control method of the air conditioner is also provided, comprising a stored program, wherein when the program is running, the device where the storage medium is located executes the steps of the control method of the air conditioner described above.

[0178] Since the processing and functions realized by the storage medium of the present embodiment are basically corresponding to the foregoing embodiments, principles and examples of the method, the descriptions of the present embodiment which are not elaborated can be referred to the related descriptions in the foregoing embodiments, and will not be repeated here.

[0179] In summary, those skilled in the art can easily understand that the above-mentioned advantageous modes can be freely combined and superimposed without conflict.

[0180] The above only describes the embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A control method of an air conditioner, characterized by, The air conditioner has an indoor unit and an outdoor unit, the indoor unit has an indoor heat exchanger and an indoor fan, and the outdoor unit has a compressor; a water pan (1) is arranged below the indoor heat exchanger, and an electrolysis module (3) is arranged in the water channel of the water pan (1); when the electrolysis module (3) is turned on, the cathode and the anode of the electrolysis module (3) are in contact with the water channel of the water pan (1) through the condensed water, and the electrolysis module (3) can generate active bactericidal substances to clean the water pan (1) by itself; The control method of the air conditioner comprises: When the air conditioner is powered on and the cooling mode is turned on, the compressor is controlled to operate at a first frequency preset in the cooling mode, the indoor fan is controlled to operate at a first wind speed preset in the cooling mode, and the electrolysis module (3) is controlled to be turned on and start timing; Obtain the indoor environment temperature and humidity of the air conditioner, and obtain the current of the electrolysis module (3); When it is determined that the current of the electrolysis module (3) changes from 0 to greater than 0, stop timing, obtain the time from the electrolysis module (3) is turned on to the current passes through, and record it as the current passing time of the electrolysis module (3); According to the current passing time of the electrolysis module (3), it is determined whether the water pan (1) needs to be self-cleaned; If it is determined that the water pan (1) needs to be self-cleaned, a preset self-cleaning program is executed to control the electrolysis module (3) to electrolyze bacteria and clean the water pan (1) by combining the current passing time of the electrolysis module (3) and the indoor environment temperature and humidity of the air conditioner.

2. The control method of the air conditioner according to claim 1, characterized by, The water channel of the water pan (1) has a high position and a low position; The number of the electrolysis module (3) is more than one; more than one electrolysis module (3) is installed at the high position and / or the low position of the water channel of the water pan (1).

3. The control method of an air conditioner according to claim 1 or 2, characterized by, According to the current passing time of the electrolysis module (3), it is determined whether the water pan (1) needs to be self-cleaned, comprising: Determine whether the difference between the current passing time of the electrolysis module (3) and the preset current passing time threshold is greater than or equal to the preset dirt time threshold; If it is determined that the difference between the current passing time of the electrolysis module (3) and the preset current passing time threshold is less than the preset dirt time threshold, it is determined that the water pan (1) does not need to be self-cleaned; If it is determined that the difference between the current passing time of the electrolysis module (3) and the preset current passing time threshold is greater than or equal to the preset dirt time threshold, it is determined that the water pan (1) needs to be self-cleaned.

4. The control method of an air conditioner according to claim 1 or 2, characterized by, According to the current passing time of the electrolysis module (3), it is determined whether the water pan (1) needs to be self-cleaned, further comprising: Retrieve the current passing time of the electrolysis module (3) obtained last time; determining a difference between the current time of current through the electrolysis module (3) and the time of current through the electrolysis module (3) obtained in the last time, and recording the difference as a difference between adjacent two times of current through the electrolysis module (3); and determining whether the difference between adjacent two times of current through the electrolysis module (3) is greater than or equal to a preset dirtying time threshold value; if it is determined that the difference between adjacent two times of current through the electrolysis module (3) is less than the preset dirtying time threshold value, it is determined that the water pan (1) does not need to be self-cleaned; if it is determined that the difference between adjacent two times of current through the electrolysis module (3) is greater than or equal to the preset dirtying time threshold value, it is determined that the water pan (1) needs to be self-cleaned.

5. The control method of an air conditioner according to any one of claims 1 to 4, characterized by, performing a preset self-cleaning program to control the electrolysis module (3) to electrolyze and sterilize, and to self-clean the water pan (1), in combination with the time of current through the electrolysis module (3) and the indoor environment temperature and humidity of the air conditioner, including: performing a preset condensation mode under the preset self-cleaning program: controlling the drain nozzle (2) of the water pan (1) to be closed, and determining a target condensation time of the air conditioner according to the time of current through the electrolysis module (3); under the preset condensation mode, controlling the compressor to continue operating at the first frequency preset in the cooling mode, and controlling the indoor fan to continue operating at the first wind speed preset in the cooling mode; after operating for the target condensation time, determining a target electrolysis operating time of the electrolysis module (3) according to the target condensation time, the time of current through the electrolysis module (3), and the indoor environment temperature and humidity of the air conditioner, and determining a target sterilization time after the electrolysis module (3) finishes electrolysis operation; performing a preset sterilization mode: controlling the electrolysis module (3) to perform electrolysis operation for the target electrolysis operating time to generate active sterilization substances; performing a preset drying mode: after the electrolysis module (3) finishes electrolysis operation and continues to be powered for the target sterilization time, determining that the electrolysis sterilization of the electrolysis module (3) is finished, controlling the air conditioner to turn off the cooling mode and turn on the heating mode, controlling the compressor to operate at the second frequency preset in the heating mode and controlling the indoor fan to operate at the second wind speed preset in the heating mode, setting a drying time, and then exiting the preset self-cleaning program to complete the self-cleaning of the water pan (1).

6. The control method of the air conditioner according to claim 5, characterized by, determining a target electrolysis operating time of the electrolysis module (3) according to the target condensation time, the time of current through the electrolysis module (3), and the indoor environment temperature and humidity of the air conditioner, and determining a target sterilization time after the electrolysis module (3) finishes electrolysis operation, including: determining a total amount of condensed water generated by the air conditioner in the preset condensation mode according to the indoor environment temperature and humidity of the air conditioner before and after the target condensation time; determining an amount of condensed water hanging on the indoor heat exchanger according to the indoor environment temperature and humidity of the air conditioner before and after the time of current through the electrolysis module (3); A difference between a total amount of condensed water generated by the air conditioner in a preset condensation mode and an amount of hanging condensed water of the indoor heat exchanger is determined as an effective condensed water amount in the water pan (1); According to a correspondence between the set condensed water amount and the set electrolysis time, a set electrolysis time corresponding to the set condensed water amount same as the effective condensed water amount in the water pan (1) in the correspondence is determined as a target electrolysis operation time of the electrolysis module (3); According to a correspondence among the set electrolysis time, the set current passing time and the set sterilization time, a set sterilization time corresponding to the set electrolysis time same as the target electrolysis operation time of the electrolysis module (3) and the set current passing time corresponding to the current passing time of the electrolysis module (3) in the correspondence is determined as a target sterilization time after the electrolysis operation of the electrolysis module (3) ends.

7. A control device for an air conditioner, characterized by comprising: The air conditioner has an indoor unit and an outdoor unit, the indoor unit has an indoor heat exchanger and an indoor fan, and the outdoor unit has a compressor; a water pan (1) is arranged below the indoor heat exchanger, and an electrolysis module (3) is arranged in a water channel of the water pan (1); when the electrolysis module (3) is turned on, after a cathode and an anode of the electrolysis module (3) are in contact with the water channel of the water pan (1) and the condensed water in the water channel is conducted, the electrolysis module (3) can generate active sterilization substances to perform self-cleaning on the water pan (1); The control device of the air conditioner comprises: A control unit configured to, when the air conditioner is powered on and a cooling mode is turned on, control the compressor to operate at a first frequency preset in the cooling mode, control the indoor fan to operate at a first wind speed preset in the cooling mode, and control the electrolysis module (3) to be turned on and start timing; An acquisition unit configured to acquire indoor environment temperature and humidity of the air conditioner and acquire a current of the electrolysis module (3); When it is determined that the current of the electrolysis module (3) changes from 0 to greater than 0, the timing is stopped, and a time from when the electrolysis module (3) is turned on to when the current passes is obtained, which is recorded as a current passing time of the electrolysis module (3); The control unit is further configured to determine whether the water pan (1) needs to be self-cleaned according to the current passing time of the electrolysis module (3); The control unit is further configured to, if it is determined that the water pan (1) needs to be self-cleaned, execute a preset self-cleaning program to control the electrolysis module (3) to perform electrolysis sterilization and self-clean the water pan (1) in combination with the current passing time of the electrolysis module (3) and the indoor environment temperature and humidity of the air conditioner.

8. An air conditioner characterized by comprising: Comprise: The control device of the air conditioner of claim 7.

9. A storage medium, characterized by The storage medium comprises a stored program, wherein the program controls the device where the storage medium is located to execute the control method of the air conditioner of any one of claims 1 to 6 when the program is executed.

10. A computer program product comprising a computer program, characterized in that, The computer program is executed by a processor to implement the steps of the control method of the air conditioner of any one of claims 1 to 6.

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