Air conditioner and control method, device, storage medium and computer program product thereof

Abstract

The application discloses a control method and device of an air conditioner, the air conditioner, a storage medium and a computer program product, and relates to the technical field of air conditioners. The method comprises the following steps: in the case that the refrigeration mode is started after the air conditioner is powered on, if a self-cleaning instruction for self-cleaning of a water receiving tray is received, it is determined whether the water receiving tray needs to be self-cleaned according to the pollution degree of the water receiving tray; 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 indoor environment temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange zone of the indoor heat exchanger and the temperature of the second heat exchange zone of the indoor heat exchanger, the electrolysis module is controlled to perform electrolysis sterilization, and the water receiving tray is self-cleaned. According to the scheme, the composite heat exchanger with the first heat exchange zone and the second heat exchange zone is used as the indoor heat exchanger, the electrolysis module is arranged on the water receiving tray to electrolyze the condensed water and 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 application belongs to the technical field of air conditioners, and particularly relates to an air conditioner control method and device, an air conditioner, a storage medium and a computer program product, in particular to an air conditioner water channel self-cleaning control method and device, an air conditioner, a storage medium and a computer program product. BACKGROUND

[0002] Condensate is generated during the operation of an air conditioner, which is collected by a water pan (also known as a water channel) and then discharged to the outside through a drain pipe. With the extension of the use time, the water channel is in a humid and warm environment suitable for the growth of bacteria and mold for a long time. The large-scale reproduction of bacteria and mold affects the quality of indoor air on the one hand, and the presence of these microorganisms can secrete a mucilage in the air conditioner environment, which is like an adhesive that adheres to dust, particles and other substances to form a sticky deposit, which adheres to the surface of the water channel, affecting the normal use of the air conditioner. The industry calls it biological slime, as shown in Figure 5 Figure 5 Air conditioner water channel biological slime pollution status diagram.

[0003] Bacteria and other microorganisms are the key to the above problems, and the treatment means in the related solutions is mainly to inhibit the breeding of microorganisms by carrying out antibacterial treatment on the water channel of the air conditioner, thereby controlling the problem of water channel pollution. However, the antibacterial water channel of the air conditioner in the related solutions cannot solve the problem of dirty odor of the water channel of the air conditioner, which is not conducive to human health.

[0004] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0005] The purpose of the present application is to provide an air conditioner control method, device, air conditioner, storage medium and computer program product to solve the problem that the antibacterial water channel of the air conditioner cannot solve the problem of dirty odor of the water channel of the air conditioner, which is not conducive to human health, and to achieve the effect of using a composite heat exchanger with a first heat exchange zone and a second heat exchange zone as an indoor heat exchanger, and using an electrolysis module arranged on the water pan to electrolyze the condensate to sterilize and purify the water pan, avoid dirty odor of the water channel, and be conducive 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, the indoor heat exchanger has a first heat exchange area and a second heat exchange area, the heat exchange performance of the first heat exchange area and the second heat exchange area of the indoor heat exchanger is different; the outdoor unit has a compressor; a water pan is arranged below the indoor heat exchanger, an electrolysis module is arranged in a water channel of the water pan and at a position between the water pan and the indoor heat exchanger; 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 condensed water in the water channel of the water pan and are turned on, the electrolysis module can generate active bactericidal substances to perform self-cleaning on the water pan; 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, if a self-cleaning instruction for performing self-cleaning on the water pan is received, the pollution degree of the water pan is obtained, the indoor environment temperature of the air conditioner is obtained, the indoor air dew point temperature of the air conditioner is obtained, the temperature of the first heat exchange area of the indoor heat exchanger is obtained, and the temperature of the second heat exchange area of the indoor heat exchanger is obtained; according to the pollution degree of the water pan, it is determined whether the water pan needs to be self-cleaned; if it is determined that the water pan needs to be self-cleaned, a preset self-cleaning program is executed to: in combination with the indoor environment temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange area of the indoor heat exchanger and the temperature of the second heat exchange area of the indoor heat exchanger, the electrolysis module is controlled to perform electrolysis sterilization to perform self-cleaning on the water pan.

[0007] In some embodiments, the heat exchange performance of the first heat exchange area of the indoor heat exchanger is lower than that of the second heat exchange area of the indoor heat exchanger; the length of the second heat exchange area of the indoor heat exchanger can be adjusted; the water channel of the water pan has a high position and a low position; the number of the 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 pan; the water pan has a high position and a low position, the second heat exchange area of the indoor heat exchanger is located at the position of the high position of the water channel of the water pan; and the electrolysis module is located between the second heat exchange area of the indoor heat exchanger and the water pan.

[0008] In some embodiments, the degree of contamination of the water pan is obtained in any one of the following ways: according to the cumulative running time of the air conditioner and the average indoor pollutant concentration of the room where the air conditioner is located; according to the cumulative running time of the air conditioner or the interval time between the current time of the air conditioner and the last time when the self-cleaning program is executed; according to the image information of the water pan; and / or, according to the degree of contamination of the water pan, it is determined whether the self-cleaning of the water pan is needed, including: determining whether the degree of contamination of the water pan is greater than or equal to the preset degree of contamination; if it is determined that the degree of contamination of the water pan is greater than or equal to the preset degree of contamination, it is determined that the self-cleaning of the water pan is needed.

[0009] In some embodiments, in combination with the indoor environment temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange zone of the indoor heat exchanger, and the temperature of the second heat exchange zone of the indoor heat exchanger, the electrolysis module is controlled to electrolyze and sterilize, the self-cleaning of the water pan is controlled, including: determining the first frequency preset for the compressor in the cooling mode according to the indoor environment temperature of the air conditioner; controlling the compressor to operate at the first frequency preset in the cooling mode, and the indoor fan to operate at the first wind speed preset in the cooling mode, until the running degree of the compressor and the indoor fan reaches the first preset condition, timing, controlling the electrolysis module to start, and making the compressor and the indoor fan continue to operate; wherein the first preset condition is that the temperature of the first heat exchange zone of the indoor heat exchanger is greater than the first temperature corresponding to the indoor air dew point temperature of the air conditioner, and the temperature of the second heat exchange zone of the indoor heat exchanger is less than or equal to the first temperature corresponding to the indoor air dew point temperature of the air conditioner; until the running time of the compressor and the indoor fan under the first preset condition reaches the first preset time, the compressor and the indoor fan are controlled to maintain the current operation, and the electrolysis module is controlled to be closed, so that the indoor heat exchanger generates condensation and gathers into the water pan for electrolysis and sterilization by the electrolysis module; wherein the first preset time is determined according to the cumulative running time of the air conditioner; the purification time of the electrolysis module is determined, and the electrolysis module is controlled to electrolyze and sterilize according to the purification time of the electrolysis module to purify the water pan; after the electrolysis and sterilization operation of the electrolysis module is completed, the air conditioner is controlled to be closed in the cooling mode and opened in the heating mode, the compressor is controlled to operate at the second frequency preset in the heating mode, the indoor fan is controlled to operate at the second wind speed preset in the heating mode, the drying time is set, and then the preset self-cleaning program is exited, completing the self-cleaning of the water pan.

[0010] In some embodiments, the purifying time of the electrolysis module is determined by: determining a first preset time as the purifying time of the electrolysis module; or determining the purifying time of the electrolysis module according to the accumulated running time of the air conditioner and the difference between the temperature of the second heat exchange area of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner.

[0011] In some embodiments, the electrolysis module is controlled to perform electrolysis sterilization for the purifying time of the electrolysis module by: during the process that the electrolysis module performs electrolysis sterilization for the purifying time of the electrolysis module, determining the electrolysis parameter of the electrolysis module according to the difference between the temperature of the second heat exchange area of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner; wherein the electrolysis parameter of the electrolysis module includes the voltage of the electrolysis module or the current of the electrolysis module.

[0012] In some embodiments, the purifying time of the electrolysis module is determined by: determining a first preset time as the purifying time of the electrolysis module; or determining the purifying time of the electrolysis module according to the accumulated running time of the air conditioner and the difference between the temperature of the second heat exchange area of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner.

[0013] In some embodiments, the heat exchange performance of the first heat exchange zone of the indoor heat exchanger is lower than the heat exchange performance of the second heat exchange zone of the indoor heat exchanger; the length of the second heat exchange zone of the indoor heat exchanger can be adjusted; the water channel of the water tray has a high position and a low position; the number of the electrolysis modules is more than one; more than one of the electrolysis modules is installed at the high position and / or the low position of the water channel of the water tray; the water tray has a high position and a low position, and the second heat exchange zone of the indoor heat exchanger is located at the position of the high position of the water channel of the water tray; and the electrolysis module is located between the second heat exchange zone of the indoor heat exchanger and the water tray.

[0014] In some embodiments, the obtaining unit obtains the contamination degree of the water tray by any one of the following methods: determining the contamination degree of the water tray according to the cumulative running time of the air conditioner and the indoor average pollutant concentration of the room where the air conditioner is located; determining the contamination degree of the water tray according to the cumulative running time of the air conditioner or the interval time length between the current time of the air conditioner and the time when the last self-cleaning program is executed; determining the contamination degree of the water tray according to the image information of the water tray; and / or the control unit determines whether the self-cleaning of the water tray is needed according to the contamination degree of the water tray, including: determining whether the contamination degree of the water tray is greater than or equal to a preset contamination degree; and if it is determined that the contamination degree of the water tray is greater than or equal to the preset contamination program, it is determined that the self-cleaning of the water tray is needed.

[0015] In some embodiments, the control unit, in combination with the indoor environment temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange zone of the indoor heat exchanger, and the temperature of the second heat exchange zone of the indoor heat exchanger, controls the electrolysis module to electrolyze bacteria and controls the water pan to self-clean, including: determining a first frequency preset for the compressor in the cooling mode according to the indoor environment temperature of the air conditioner; controlling the compressor to operate at the first frequency preset in the cooling mode and the indoor fan to operate at the first wind speed preset in the cooling mode, timing until the operating degree of the compressor and the indoor fan reaches a first preset condition, controlling the electrolysis module to start, and making the compressor and the indoor fan continue to operate; wherein the first preset condition is that the temperature of the first heat exchange zone of the indoor heat exchanger is greater than a first temperature corresponding to the indoor air dew point temperature of the air conditioner, and the temperature of the second heat exchange zone of the indoor heat exchanger is less than or equal to the first temperature corresponding to the indoor air dew point temperature of the air conditioner; until the operating time of the compressor and the indoor fan under the first preset condition reaches a first preset time, controlling the compressor and the indoor fan to maintain the current operation, and controlling the electrolysis module to be closed, so that the indoor heat exchanger generates condensation and gathers in the water pan for electrolysis by the electrolysis module; wherein the first preset time is determined according to the cumulative operating time of the air conditioner; determining the purification time of the electrolysis module, and controlling the electrolysis module to operate for electrolysis and bacteria removal according to the purification time of the electrolysis module, to purify the water pan; after the electrolysis and bacteria removal operation of the electrolysis module is completed, controlling the air conditioner to close the cooling mode and open 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.

[0016] In some embodiments, the control unit determines the purification time of the electrolysis module, including: determining the first preset time as the purification time of the electrolysis module; or determining the purification time of the electrolysis module according to the cumulative operating time of the air conditioner and the difference between the temperature of the second heat exchange zone of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner.

[0017] In some embodiments, the control unit controls the electrolysis module to perform electrolysis sterilization according to the purification time of the electrolysis module, including: during the electrolysis sterilization performed by the electrolysis module according to the purification time of the electrolysis module, determining the electrolysis parameter of the electrolysis module according to the difference between the temperature of the second heat exchange zone of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner; wherein the electrolysis parameter of the electrolysis module includes the voltage of the electrolysis module or the current of the electrolysis module.

[0018] In another aspect, the present application provides an air conditioner matched with the above device, including the control device of the air conditioner.

[0019] In another aspect, the present application provides a storage medium matched with the above method, including a stored program, wherein when the program is executed, the device where the storage medium is located performs the steps of the control method of the air conditioner.

[0020] In another aspect, the present application provides a computer program product matched with the above method, including a computer program which, when executed by a processor, implements the steps of the control method of the air conditioner.

[0021] Thus, the scheme of the present application, by adopting a composite heat exchanger with at least two different heat exchange zones (such as a first heat exchange zone and a second heat exchange zone) as the indoor heat exchanger of the air conditioner, and setting an electrolysis module between the water pan of the air conditioner and the indoor heat exchanger; in the case of running the air conditioner in the refrigeration mode after starting, detecting the pollution degree of the water pan, in the case of detecting that the pollution degree of the water pan is greater than or equal to the preset pollution degree, starting the electrolysis module, controlling the indoor fan of the air conditioner to run at the first wind speed, and the compressor to run at the first frequency corresponding to the indoor environment temperature, running under the first preset condition that the fin temperature of the first heat exchange zone of the indoor heat exchanger is greater than the first temperature corresponding to the dew point temperature corresponding to the air, and the fin temperature of the second heat exchange zone of the indoor heat exchanger is less than the first temperature corresponding to the dew point temperature corresponding to the air, for a first preset time, so that condensation is generated between the fins of the indoor heat exchanger and gathered into the water pan for electrolysis by the electrolysis module to achieve purification; during the electrolysis of the electrolysis module, the electrolysis parameters (such as electrolysis voltage or electrolysis current) of the electrolysis module are adjusted according to the difference between the fin temperature of the second heat exchange zone of the indoor heat exchanger and the first temperature, so as to maximize the utilization rate of the condensed water; in the case that the difference between the fin temperature of the second heat exchange zone of the indoor heat exchanger and the first temperature changes and the electrolysis parameters of the electrolysis module change, the purification time of the electrolysis module is equal to the first preset time; in the case that the difference between the fin temperature of the second heat exchange zone of the indoor heat exchanger and the first temperature changes but the electrolysis parameters of the electrolysis module do not change, the purification time of the electrolysis module is determined according to the first preset time and the difference between the fin temperature of the second heat exchange zone of the indoor heat exchanger and the first temperature; then the drying mode is executed to complete the water channel self-cleaning of the water pan; thereby, by adopting the composite heat exchanger with the first heat exchange zone and the second heat exchange zone as the indoor heat exchanger, and using the electrolysis module arranged on the water pan to electrolyze the condensed water to purify the water pan, the water channel is prevented from being dirty and smelly, which is beneficial to human health.

[0022] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent 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 aid of drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Flowchart of an embodiment of the control method of the air conditioner of the present application;

[0025] Figure 2 Flowchart of an embodiment of the method for determining whether the water pan 1 needs to be self-cleaned;

[0026] Figure 3Flowchart of an embodiment of the method for self-cleaning of the water pan 1 in the present application;

[0027] Figure 4 Structure diagram of an embodiment of the control device of the air conditioner in the present application;

[0028] Figure 5 Current situation diagram of water channel biological slime pollution of the air conditioner;

[0029] Figure 6 Structure diagram of the water pan purifying device of the air conditioner;

[0030] Figure 7 Structure diagram of the composite heat exchanger of the air conditioner;

[0031] Figure 8 Temperature difference curve diagram of different heat exchange zones;

[0032] Figure 9 Structure diagram of the electrolysis module;

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

[0034] Figure 11 Flowchart of the water pan 1 self-cleaning control method of the air conditioner;

[0035] Figure 12 Structure diagram of the water pan 1 self-cleaning control device of the air conditioner.

[0036] In combination with the drawings, the reference signs in the embodiments of the present application are as follows:

[0037] 1-water pan; 11-high position of the water pan; 12-low position of the water pan; 2-drainage nozzle; 3-electrolysis bacteria removal module; 31-first electrode (such as cathode); 32-second electrode (such as anode); 33-power line; 4-air inlet; 5-air outlet; 6-copper foil; 7-evaporator; 71-fins; 72-copper pipe; 8-internal fan; 9-air deflector; 102-acquisition unit; 104-control unit. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below in combination with 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 protection scope of the present application.

[0039] In view of the fact that the air conditioner antibacterial water channel in the related scheme cannot solve the problem of dirty odor of the air conditioner water channel, 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 dirty of the water channel of the air conditioner, which is not conducive to human health.

[0040] Therefore, the scheme of the present application provides a control method of an air conditioner, specifically a water channel self-cleaning control method of an air conditioner, provides an efficient and durable air conditioner water channel purification scheme without consumables, adopts a composite heat exchanger with a first heat exchange zone and a second heat exchange zone as an indoor heat exchanger, controls the air conditioner to generate condensate water in a specific heat exchange area combined with the composite heat exchanger, electrolyzes the condensate water generated by the operation of the air conditioner through the electrolysis module arranged on the water pan to generate active bactericidal substances flowing through the entire water pan to achieve sterilization and purification of the water pan 1, which can better solve the problem of dirty of the water channel of the air conditioner, which is conducive to human health.

[0041] 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, the indoor heat exchanger has a first heat exchange zone and a second heat exchange zone, the first heat exchange zone and the second heat exchange zone of the indoor heat exchanger have different heat exchange performances, specifically, the indoor heat exchanger has a first heat exchange zone and a second heat exchange zone formed by fins made of different materials; the outdoor unit has a compressor; a water pan 1 is arranged below the indoor heat exchanger, an electrolysis module is arranged in the water channel of the water pan 1 and located between the water pan 1 and the indoor heat exchanger; when the electrolysis module is turned on, after the cathode and anode of the electrolysis module contact the condensate water in the water channel of the water pan 1 and conduct, the electrolysis module can generate active bactericidal substances to self-clean the water pan 1. The scheme of the present application provides a water pan 1 self-cleaning control scheme of an air conditioner, which aims to solve the problem of dirty and odor of the water pan 1 in the related scheme. In order to achieve the above purpose, as shown in Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10As shown, the scheme of the present application first provides a water pan purification device for an air conditioner. Figure 6 As shown, the scheme of the present application first provides a water pan purification device for an air conditioner. Figure 7 As shown, the scheme of the present application first provides a water pan purification device for an air conditioner. Figure 8 As shown, the scheme of the present application first provides a water pan purification device for an air conditioner. Figure 9 As shown, the scheme of the present application first provides a water pan purification device for an air conditioner. Figure 10 As shown, the scheme of the present application first provides a water pan purification device for an air conditioner.

[0042] As shown, the scheme of the present application first provides a water pan purification device for an air conditioner. Figure 6 As shown, the scheme of the present application first provides a water pan purification device for an air conditioner. Figure 10 As shown, the air conditioner comprises an indoor unit and an outdoor unit. The indoor unit has an air inlet 4, an indoor fan 8, an air outlet 5, and a guide vane 9. The air duct has a water pan 1 and an environmental parameter detection device. The outdoor unit has a compressor, an outdoor fan, and a condenser. The water pan 1 is installed with an evaporator 7. When the air conditioner is running in cooling mode, the evaporator 7 will produce condensate water, which will flow down along the fins of the evaporator 7 and collect in the water pan 1. The condensate water will flow from the high position 11 of the water pan to the low position 12 of the water pan, and finally be discharged to the outside through the drain 2 and the drain pipe of the air conditioner. The evaporator 7 has fins 71 and copper pipes 72. The environmental parameter detection device is an air quality detection unit and an air temperature and humidity detection unit. The air quality detection unit is used to detect the air quality of the indoor environment, including PM2.5 sensors, microorganism sensors, etc. The air temperature and humidity detection unit is used to detect the temperature and humidity of the indoor environment, including temperature sensors, humidity sensors, or temperature and humidity sensors, etc. In particular, the evaporator 7 is a composite heat exchanger, that is, the evaporator 7 comprises at least two or more different heat exchange zones. The difference in heat exchange performance of the heat exchange zones can be adjusted by the difference in performance of the copper pipe material (such as copper pipe 72), the refrigerant flow path, and the fin material (such as fin 71), etc. As shown, Figure 9 As shown, the water pan 1 and the evaporator 7 are provided with a water pan purification device. The water pan purification device is an electrolysis module (i.e. electrolysis bacteria removal module 3), which comprises a module body and electrodes, as well as 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 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, and 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. The number of electrolysis modules is determined according to the structure of the water pan to ensure that the electrolysis active substances can flow through all the water pan areas.

[0043] In some embodiments, the heat exchange performance of the first heat exchange zone of the indoor heat exchanger is lower than the heat exchange performance of the second heat exchange zone of the indoor heat exchanger; in particular, the heat exchange performance of the fin material of the first heat exchange zone of the indoor heat exchanger is lower than the heat exchange performance of the fin material of the second heat exchange zone of the indoor heat exchanger; wherein the length of the second heat exchange zone of the indoor heat exchanger can be adjusted (i.e. can be adjusted according to the length).

[0044] Figure 7 The first heat exchange zone (main heat exchange zone) is a common fin area, which is produced by using conventional aluminum foil or hydrophilic aluminum foil, and mainly plays a role of refrigeration and heating, and the second heat exchange zone (special heat exchange zone) is a special fin area, which is produced by using aluminum foil or copper foil (such as copper foil 6) with better heat exchange performance, and mainly plays a role of condensation to produce condensate water for electrolysis. Alternatively, under the same conditions, the effective amount of condensate water can also be adjusted and controlled by controlling the length d of the second heat exchange zone (i.e. the proportion of the second heat exchange zone in the entire heat exchanger).

[0045] The following is an example of a heat exchanger composed of aluminum foil and copper foil, as shown in Figure 8 As shown, the heat conduction performance of copper foil is better than that of aluminum foil, and the specific heat capacity is lower than that of aluminum foil, that is, under the condition that the refrigerant carries the same heat in the copper pipe, the temperature of the second heat exchange zone where the copper fin is located will be lower than the temperature of the first heat exchange zone where the aluminum fin is located in theory, and the temperature difference range (i.e. ΔT a ) between the first heat exchange zone temperature and the second heat exchange zone temperature is related to the difference in heat exchange performance of different heat exchange zones. The advantage brought by this is that under the same dew point temperature, the temperature of the second heat exchange zone will first be lower than the dew point to occur preferential condensation, and the size of the condensation (condensation speed) is related to the difference (i.e. ΔT b ) between the temperature of the second heat exchange zone and the dew point temperature. If the system parameters of the air conditioner are well controlled, even the dew point temperature T d between the first heat exchange zone temperature T1 and the second heat exchange zone temperature T2 (i.e. T1>T d ≥T2), at this time, the condensation always occurs in the second heat exchange zone.

[0046] In some embodiments, the water channel of the water pan 1 has a high position and a low position; the number of electrolysis modules is more than one; one or more of the electrolysis modules are installed at the high position and / or the low position of the water channel of the water pan 1; that is, the electrolysis module is arranged at the high position 11 of the water pan, so that the number of electrolysis modules can be reduced, the control cost is reduced, and the electrolytic active substance can flow through the entire water pan along with the condensed water, so that the sterilization and disinfection effect on the entire area is ensured. Wherein, the high position and the low position of the water pan 1 refer to the high position and the low position in the vertical direction. Specifically, because the water flow mainly flows downward by gravity, the high position and the low position of the water pan 1 are mainly to ensure that the condensed water in the water pan 1 can flow from the high position to the low position or flow to the low position, and then flow away through the water pipe at the low position, so that the drainage efficiency is the highest.

[0047] In some embodiments, the water pan 1 has a high position and a low position, the second heat exchange area of the indoor heat exchanger is located at the position of the high position of the water channel of the water pan 1, and the electrolysis module is located between the second heat exchange area of the indoor heat exchanger and the water pan 1. In the scheme of the present application, the second heat exchange area of the evaporator 7 is located at the high position 11 of the water pan, and the electrolysis sterilization module 3 is arranged between the second heat exchange area and the water pan 1, so that the condensed water can be generated only above the electrolysis module and can flow through the entire area of the water pan, and the condensed water can be maximized to play a purifying role.

[0048] In the scheme of the present application, as shown in Figure 1 The control method of the air conditioner comprises steps S110 to S130.

[0049] At step S110, in the case that the air conditioner is powered on and the refrigeration mode is started, if a self-cleaning instruction for self-cleaning of the water pan 1 is received, the pollution degree of the water pan 1 is obtained, the indoor environment temperature of the air conditioner is obtained, the indoor air dew point temperature of the air conditioner is obtained, the temperature of the first heat exchange area of the indoor heat exchanger is obtained, and the temperature of the second heat exchange area of the indoor heat exchanger is obtained. Wherein, after the indoor environment temperature and the relative humidity are determined, the absolute humidity at this time can be calculated, and the dew point of the air at this time can be determined, which can be obtained through the psychrometric chart.

[0050] In some embodiments, the pollution degree of the water pan 1 obtained in step S110 comprises any one of the following obtaining methods:

[0051] The first obtaining manner: the pollution degree of the water pan 1 is determined according to the cumulative running time of the air conditioner and the indoor average pollutant concentration of the room where the air conditioner is located; specifically, a product value of the cumulative running time t1 of the air conditioner, the indoor average pollutant concentration C of the room where the air conditioner is located, and a first calculation coefficient k1 is determined as the pollution degree P of the water pan 1.

[0052] The second obtaining manner: the pollution degree of the water pan 1 is determined according to the cumulative running time of the air conditioner or the interval time length from the current time of the air conditioner to the time when the last self-cleaning program is executed; specifically, according to a predetermined corresponding relationship between the cumulative running time of the air conditioner or the interval time length from the last self-cleaning program to the pollution degree of the water pan 1, the pollution degree corresponding to the cumulative running time of the air conditioner or the interval time length from the last self-cleaning program is determined as the pollution degree P of the water pan 1.

[0053] The third obtaining manner: the pollution degree of the water pan 1 is determined according to the image information of the water pan 1; specifically, according to a predetermined corresponding relationship between the image information of the water pan 1 and the pollution degree of the water pan 1, the pollution degree corresponding to the image information of the water pan 1 is determined as the pollution degree P of the water pan 1.

[0054] Figure 11 The flowchart of the self-cleaning control method of the water pan 1 of the air conditioner. In order to achieve the purpose of the present application, as shown in Figure 11 , in combination with the above-mentioned composite heat exchanger and electrolysis bacteria removal module 3, the scheme of the present application provides a self-cleaning control method for the water pan 1 of the air conditioner. As shown in Figure 11 , a self-cleaning control method for the water pan 1 of the air conditioner, the control method comprises the following processes:

[0055] Step 1, the air conditioner is powered on and operated, and then step 2 is executed.

[0056] Step 2, obtain the self-cleaning instruction of the user water pan 1, and then execute step 3.

[0057] Step 3, detect the pollution degree of the water pan 1 of the air conditioner, and determine whether the self-cleaning program needs to be run, and then execute step 4.

[0058] In step 3, the pollution degree P of the water pan 1 is determined by combining the cumulative running time t1 of the air conditioner and the average indoor pollutant concentration C in the corresponding time period, i.e. P = f1(t1, C). In particular, P = k1xt1xC. k1 is a pollutant deposition coefficient, which represents the degree of pollution of the water pan caused by the deposition and growth of pollutants. The cumulative running time t1 can be determined by the running time of the air conditioner motor, and the average indoor pollutant concentration C is obtained by real-time or periodic detection by the indoor pollutant sensor and calculation of the corresponding average value.

[0059] Alternatively, the pollution degree of the water pan 1 can also be determined directly by the cumulative running time or the interval time since the last self-cleaning, or it can also be visually determined by a camera or other visualization technology to achieve the effect of the present application.

[0060] In the scheme of the present application, the pollution degree of the water pan 1 is obtained by using multiple ways, which can be applied to various application scenarios, making it more convenient and flexible to determine the pollution degree of the water pan 1.

[0061] At step S120, it is determined whether the water pan 1 needs to be self-cleaned according to the pollution degree of the water pan 1.

[0062] In some embodiments, the specific way of determining whether the water pan 1 needs to be self-cleaned according to the pollution degree of the water pan 1 in step S120 is described in the following exemplary description.

[0063] The following will be described in conjunction with Figure 2 The flowchart of an embodiment of the method of the present application for determining whether the water pan 1 needs to be self-cleaned, which further illustrates the specific process of determining whether the water pan 1 needs to be self-cleaned in step S120, includes steps S210 to S220.

[0064] Step S210, it is determined whether the pollution degree of the water pan 1 is greater than or equal to a preset pollution degree; wherein the preset pollution degree is, for example, a preset value P0.

[0065] Step S220, if it is determined that the pollution degree of the water pan 1 is greater than or equal to the preset pollution procedure, it is determined that the water pan 1 needs to be self-cleaned. Of course, if it is determined that the pollution degree of the water pan 1 is less than the preset pollution procedure, it is determined that the water pan 1 does not need to be self-cleaned.

[0066] As Figure 11As shown, the water pan 1 self-cleaning control method further includes the following process: in step 3, when the pollution degree P of the water pan 1 is less than the preset value P0, it is judged as no, indicating that the air conditioner has not been running for a long time or the indoor air quality is good, and the water pan 1 has no obvious dirt, so it can not be cleaned. When the pollution degree P of the water pan 1 is greater than or equal to the preset value P0, it is judged as yes, indicating that the air conditioner has been running for a long time or the indoor air quality is poor, and the water pan 1 is more likely to be dirty, so it needs to be cleaned as soon as possible, that is, step 4 is executed, to ensure the user's healthy use.

[0067] At step S130, 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 indoor environment temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange zone of the indoor heat exchanger, and the temperature of the second heat exchange zone of the indoor heat exchanger, control the electrolysis module to perform electrolysis sterilization 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.

[0068] In the scheme of the present application, an efficient and durable air conditioner water channel purification scheme without consumables is provided, mainly solving the problem of utilization of condensate water. The composite heat exchanger is used as the indoor heat exchanger to realize the efficient and durable air conditioner water channel purification scheme without consumables. Because the indoor heat exchanger is distributed above the entire water channel, and the condensate water cannot be guaranteed to pass through the electrolysis module, the waste is obvious. Therefore, the composite heat exchanger with a first heat exchange zone and a second heat exchange zone is used as the indoor heat exchanger in the scheme of the present application, the air conditioner is controlled in combination with the composite heat exchanger to generate condensate water in a specific heat exchange area, and the operating parameters of the electrolysis module are determined based on the generation of condensate water to generate active sterilization substances by electrolyzing the condensate water generated by the operation of the air conditioner through the electrolysis module arranged on the water pan, so as to realize the sterilization and purification of the water pan 1. The problem of dirt in the water channel of the air conditioner can be better solved, which is beneficial to human health. Thus, the problem of dirt and odor in the air conditioner water channel that cannot be solved by the air conditioner antibacterial water channel in the related scheme is solved. The problems of inconvenient installation and replacement of the precipitated antibacterial module in the air conditioner water channel in the related scheme, uncontrollable precipitation speed of the antibacterial substances, and poor long-term effectiveness are also solved. The problem of low utilization rate of condensate water in the water channel purification device in the related scheme is also solved.

[0069] In some embodiments, the specific process of controlling the electrolysis module to perform electrolysis sterilization to self-clean the water pan 1 in step S130 in combination with the indoor environment temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange zone of the indoor heat exchanger, and the temperature of the second heat exchange zone of the indoor heat exchanger is described in the following exemplary description.

[0070] The following will be described in combination withFigure 3 Fig. 2 shows a flowchart of an embodiment of the method of the present application for self-cleaning of the water pan 1, further illustrating the specific process of self-cleaning of the water pan 1 in step S130, including steps S310-S350.

[0071] In step S310, a first frequency preset for the compressor in the cooling mode is determined according to the indoor environment temperature of the air conditioner; specifically, according to the predetermined corresponding relationship between the indoor environment temperature of the air conditioner and the frequency of the compressor, the frequency corresponding to the indoor environment temperature of the air conditioner is determined as the first frequency p1 preset for the compressor in the cooling mode.

[0072] In step S320, the compressor is controlled to operate at the first frequency preset in the cooling mode, and the indoor fan is controlled to operate at the first wind speed preset in the cooling mode, until the running degree of the compressor and the indoor fan reaches a first preset condition, the electrolysis module is turned on, and the compressor and the indoor fan continue to operate; wherein the first preset condition is that the temperature of the first heat exchange zone of the indoor heat exchanger is greater than a first temperature corresponding to the indoor air dew point temperature of the air conditioner, and the temperature of the second heat exchange zone of the indoor heat exchanger is less than or equal to the first temperature corresponding to the indoor air dew point temperature of the air conditioner.

[0073] In step S330, until the running time of the compressor and the indoor fan under the first preset condition reaches a first preset time, the compressor and the indoor fan are controlled to maintain the current operation, and the electrolysis module is controlled to be turned off, so that the indoor heat exchanger generates condensate water which is gathered into the water pan 1 and then electrolyzed by the electrolysis module to remove bacteria; wherein the first preset time is determined according to the cumulative running time of the air conditioner; specifically, the product value of the cumulative running time t1 of the air conditioner and the second calculation coefficient k2 is determined as the first preset time t1.

[0074] Specifically, the purpose of the operation of the compressor and the indoor fan is to generate condensate water which is then electrolyzed by the electrolysis module to generate effective substances to achieve the effect of removing bacteria, so the electrolysis module is turned on simultaneously when the air conditioner starts the purification process. The running time here, i.e. the first preset time, is actually also the bacteria removal time. When the time is up, the electrolysis process is ended, and the electrolysis module can be turned off at this time. Then the compressor and the indoor fan operate according to the second stage of the entire purification process for drying needs, and will not be directly stopped.

[0075] Step S340, determine the purification time of the electrolysis module, and control the electrolysis module to electrolyze and sterilize according to the purification time of the electrolysis module, so as to purify the water pan 1. Wherein, the electrolysis sterilization process is ended, and the air conditioner can be closed, but the electrolysis sterilization process is only the first stage of the water channel purification process, and the whole purification process further includes the subsequent drying process.

[0076] Step S350, after the electrolysis sterilization operation of the electrolysis module is completed, the air conditioner is controlled to close the refrigeration mode and open the heating mode, the compressor is controlled to operate at the second frequency preset in the heating mode, the indoor fan is controlled to operate at the second wind speed preset in the heating mode, the drying time is set, and the preset self-cleaning program is exited, and the self-cleaning of the water pan 1 is completed.

[0077] As shown in Figure 11 A self-cleaning control method of an air conditioner water pan 1, the control method further comprises the following process: step 4, controlling the air conditioner to perform water pan 1 self-cleaning. The water pan 1 self-cleaning process includes electrolysis sterilization and drying processes, and the processes are sequentially performed, specifically including: a first electrolysis sterilization process and a second drying process, and the air conditioner is controlled to operate according to corresponding parameters and modes.

[0078] Step 41, the first electrolysis sterilization process.

[0079] The indoor fan of the air conditioner is controlled to operate at a first wind speed v1, and the compressor is controlled to operate at a first frequency p1, until the operating time under the first preset condition reaches a first preset time t1, so that condensation is generated between the fins and gathered into the water pan 1 for electrolysis to achieve purification; the first frequency corresponds to the indoor environment temperature, the first preset condition is that the fin temperature of the first heat exchange zone of the evaporator is greater than a first temperature, and the fin temperature of the second heat exchange zone is less than or equal to the first temperature, and the first temperature corresponds to the dew point temperature corresponding to the air; the environment temperature and the dew point temperature are detected and obtained by an environment temperature and humidity sensor, and the first frequency is determined accordingly; the first preset time is related to the pollution degree of the water pan 1 (i.e. the cumulative operating time of the air conditioner), that is, t1=f2(t1). t1 represents the cumulative operating time of the air conditioner, which is related to the time of condensate water generation and the dirtiness of the water pan 1. The dirtier the water pan 1 is, the more condensate water electrolysis is needed to generate more sterilization substances. As mentioned above, the dirtiness of the water pan 1 is related to the cumulative operating time and the average concentration of pollutants, that is, the first preset time is related to the operating time, which can be simply represented by a linear relationship, such as t1=k2xt1, k2 is a constant.

[0080] Step 42, the second drying process.

[0081] End the purification process, control the air conditioner to convert from the refrigeration mode to the heating mode, and control the inner fan to run at the second wind speed v2, and control the compressor 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 condensate water between the fins and in the water pan 1 is dried, and problems such as dirt and microbial contamination of the water pan 1 caused by residual condensate water in the water pan are avoided.

[0082] In the scheme of the present application, the air conditioner is controlled to run according to corresponding parameters and modes. Specifically, according to user instructions or automatic detection of the air conditioner in combination with environmental parameters, the dirt degree of the water pan 1 is determined, when the dirt degree of the water pan 1 exceeds the necessary limit, the air conditioner is controlled to run at a certain wind speed, frequency, etc. in a specific heat exchange area to generate condensate water, and the electrolysis module is controlled to determine the optimal operation parameters of the electrolysis module based on the condensate water generation, and finally the electrolysis module is used to electrolyze the condensate water to generate enough active sterilization substances, and maintain for a certain period of time, so that harmful microorganisms are sufficiently purified, and then the air conditioner is controlled to run in the heating mode at a certain wind 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 1.

[0083] When it is determined that the water pan 1 does not need to be self-cleaned or the self-cleaning program of the water pan 1 is completed, the air conditioner is controlled to run normally in the cooling and heating modes according to user requirements. In particular, when it is determined that the water pan 1 does not need to be self-cleaned, but the self-cleaning instruction of the water pan 1 comes from the user, the user needs to be prompted that the water pan is currently clean and does not need to be self-cleaned by using voice push, panel display, and mobile phone push, etc. to avoid the user questioning the normal operation of the air conditioner.

[0084] Step 5, exit the self-cleaning mode of the water pan 1, and the air conditioner runs normally.

[0085] In the scheme of the present application, when the air conditioner is started and runs, it can determine the dirt degree of the water pan 1 according to user requirements or automatically in combination with its own running state, and when it is determined that purification is needed, the air conditioner is controlled to generate condensate water in a specific heat exchange area in combination with the composite heat exchanger, and the electrolysis module is controlled to dynamically adjust the operation parameters of the electrolysis module based on the condensate water generation, thereby improving the water utilization rate of the condensate water and the electrolysis utilization rate. At this time, the electrolysis module can generate the maximum active sterilization substances, which can sufficiently purify harmful microorganisms after a certain period of time, and the air conditioner continues to run in the heating mode to dry the moisture in the water pan and other areas inside the air conditioner, which can complete the self-cleaning process of the water pan 1, realize the persistent self-cleaning of the water pan 1, and is efficient, persistent and without consumables, thereby ensuring the health of the user.

[0086] In some embodiments, the purification time of the electrolysis module is determined in step S340, including any one of the following determination cases:

[0087] The first determination case is that the first preset time is determined as the purification time of the electrolysis module, such as determining that the required purification time is equal to the first preset time, i.e., t1=t 净 .

[0088] The second determination case is that the purification time of the electrolysis module is determined according to the accumulated running time of the air conditioner and the difference between the temperature of the second heat exchange zone of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner. Specifically, the product value of the ratio of the accumulated running time t1 of the air conditioner and the difference ΔT b between the temperature of the second heat exchange zone of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner and the fourth calculation coefficient k4 is determined as the purification time t 净 .

[0089] As shown in Figure 11 , a water pan 1 self-cleaning control method of an air conditioner, the control method further includes the following process: in step 41, the indoor fan of the air conditioner is controlled to run at a first wind speed v1, and the compressor is controlled to run at a first frequency p1 until the running time under the first preset condition reaches the first preset time t1, so that the condensation is generated between the fins and gathered into the water pan 1 for electrolysis to achieve purification. Even in the case that the running parameters of the electrolysis module are controlled to maximize the utilization rate of the condensed water, maintaining the above state for continuous running can achieve the electrolysis sterilization process of the water channel, and the required purification time is equal to the first preset time, i.e., t1=t 净 .

[0090] In particular, when the difference between the second heat exchange zone fin temperature and the dew point temperature changes but the electrolysis module electrolysis parameter does not change accordingly, the electrolysis sterilization ability decreases, and in order to ensure the same purification effect, the purification time needs to be correspondingly prolonged, which is related to the dirt degree of the water pan 1 and the difference between the second heat exchange zone fin temperature and the dew point temperature in the electrolysis sterilization process, i.e., t 净 =f4(t1, ΔT b ). The dirt condition of the water pan 1 (here represented by the accumulated time t1) and the amount of condensed water (here represented by the temperature difference, representing the amount of purification material finally produced by electrolysis) determine how long the final purification will take. Generally, the dirtier the water pan 1, the longer the purification time, and under the same dirt condition, the more purification material, the less the purification time, so here t 净 =k4×t1 / ΔT b, k4 is a constant. In the above embodiment, the change of the difference between the fin temperature of the second heat exchange zone and the dew point temperature leads to the change of the condensate water production rate, and the electrolysis module operating parameters need to be adjusted to match the condensate water production rate to ensure the purification effect. Here, another situation is emphasized, that is, if the condensate water production rate changes but the electrolysis module operating parameters remain unchanged, the purification effect will certainly decrease, and in order to ensure the purification effect, the purification time needs to be extended. The two situations here coexist, and a specific scheme can be selected for control.

[0091] In the scheme of the present application, by controlling the air conditioner to produce condensate water in a specific heat exchange zone of the composite heat exchanger when it is determined that purification is needed, and determining the purification time of the electrolysis module, harmful microorganisms are sufficiently purified, and waste caused by excessive time is avoided, realizing the persistent self-cleaning of the water pan 1 and ensuring the health of the user.

[0092] In some embodiments, the step S340 of controlling the electrolysis module to electrolyze and sterilize according to the purification time of the electrolysis module includes: during the electrolysis module electrolyzing and sterilizing according to the purification time of the electrolysis module, determining the electrolysis parameter of the electrolysis module according to the difference between the temperature of the second heat exchange zone of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner; specifically, the difference ΔT b between the temperature of the second heat exchange zone of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner is multiplied by a third calculation coefficient k3 to determine the electrolysis parameter of the electrolysis module, such as the voltage U of the electrolysis module.

[0093] The electrolysis parameter of the electrolysis module includes the voltage of the electrolysis module or the current of the electrolysis module.

[0094] As shown in Figure 11 , a self-cleaning control method for an air conditioner water pan 1, the control method further includes the following process: in step 41, when the indoor fan of the air conditioner is controlled to run at a first wind speed v1 and the compressor is controlled to run at a first frequency p1 until the running time under the first preset condition reaches a first preset time t1, so that condensation is generated between the fins and gathered into the water pan 1 for electrolysis to achieve purification, the operating parameters of the electrolysis module are controlled to maximize the utilization rate of the condensate water.

[0095] Since the air conditioner is always in refrigeration, the indoor environment temperature and humidity (same as the dew point) are constantly decreasing, at this time the difference between the fin temperature of the second heat exchange area and the dew point temperature will change, that is, the condensate water production rate will change. In order to ensure the same electrolysis sterilization capacity, it is necessary to control the operating parameters of the electrolysis module to maximize the utilization rate of the condensate water, that is, to ensure the same sterilization effect by increasing the electrolysis capacity in the case of decreasing condensate water production rate. Specifically, the electrolysis parameters of the electrolysis module are controlled to maximize the utilization of condensate water to produce sufficient active sterilization substances, and the electrolysis parameters mainly include electrolysis voltage U (and / or current I), which is proportional to the difference ΔT between the fin temperature of the second heat exchange area and the first temperature (i.e. the dew point) b , that is, U = f3(ΔT b ). When the difference between the fin temperature and the dew point temperature (which represents the condensation capacity, the greater the temperature difference, the lower the fin temperature than the dew point temperature, and the faster the condensation) changes, the electrolysis module parameters (such as voltage) need to be adjusted to ensure the electrolysis sterilization capacity; Therefore, it is the simplest and most direct to use linear representation, that is, U = k3 x ΔT b , k3 is a constant.

[0096] In the above embodiments, ΔT b changes, the electrolysis parameter is adjusted, and the purification time is unchanged; or, ΔT b changes, the electrolysis parameter is unchanged, and the purification time is adjusted.

[0097] By adopting the scheme of the present application, when the air conditioner is running, it can judge the dirt degree of the water pan 1 according to the user's requirements or automatically combined with its own running state, and when it is judged that purification is needed, it controls the air conditioner to generate condensate water in a specific heat exchange area combined with the composite heat exchanger, and controls the electrolysis module to dynamically adjust the operating parameters of the electrolysis module based on the condensate water generation condition, thereby improving the water utilization rate of the condensate water and the electrolysis utilization rate. At this time, the electrolysis module can produce the maximum active sterilization substances, and after a certain time, the harmful microorganisms are sufficiently purified, and the air conditioner continues to run in the heating mode to dry the water in the internal water pan and other areas of the air conditioner, which can complete the self-cleaning process of the water pan 1, realize the persistent self-cleaning of the water pan 1, and is efficient, persistent and no consumables, thereby ensuring the health of the user.

[0098] In addition, in some alternative embodiments, the system parameter adjustment ensures ΔT bInvariable, electrolysis parameter is invariable, purification time is invariable.Control the air conditioner inner fan to run at certain wind gear v, the compressor runs at certain frequency p until the running time under the third preset condition reaches the third preset time t3, so that the condensation between the fins is generated and gathered to the water pan 1 for electrolysis to realize water channel purification; the frequency corresponds to the environmental temperature, the third preset condition is that the fin temperature of the evaporator first heat exchange zone is greater than the first temperature, the fin temperature of the second heat exchange zone is less than the first temperature, and the difference ΔT b =m is a constant value.The first temperature corresponds to the dew point temperature corresponding to air; the environmental temperature and the dew point temperature are detected in real time by the environmental temperature and humidity sensor, and the real-time frequency and wind speed are determined accordingly.The third preset time is related to the pollution degree of the water pan 1 (i.e. the cumulative running time of the air conditioner), i.e. t3=f5(t1).It should be noted that these several embodiments are parallel, and the effects are the same, only the control is slightly different, such as controlling the time or the electrolysis parameter is invariable, such as controlling the temperature difference is invariable, etc.

[0099] The scheme of the application mainly distributes the condensate water based on the need of electrolysis sterilization, and theoretically, any content related to condensate water generation, treatment and application can apply the scheme of the application, such as placing the second heat exchange zone prone to condensation at the low water level of the air conditioner water channel, so that the condensate water is only generated downstream and flows to the outdoor in time after generation through the drain nozzle, improving the cleanliness of the air conditioner use.In addition, the combination of heat exchange zones can also be used to solve the problem of uneven heat exchange of the air conditioner heat exchanger, such as improving the heat exchange capacity of the area with poor heat exchange to achieve the balance and effect of the entire heat exchange area.

[0100] According to the technical scheme, the composite heat exchanger with at least two different heat exchange zones (for example, the first heat exchange zone and the second heat exchange zone) is used as the indoor heat exchanger (for example, the evaporator 7) of the air conditioner, and the electrolysis module (for example, the electrolysis degerming module 3) is arranged between the water collecting tray (for example, the water collecting tray 1) and the indoor heat exchanger of the air conditioner. When the air conditioner is started and runs in the cooling mode, the pollution degree of the water collecting tray is detected. When the pollution degree of the water collecting tray is greater than or equal to the preset pollution degree (for example, the preset value P0), the electrolysis module is started, the indoor fan of the air conditioner is controlled to run at the first air volume, the compressor is controlled to run at the first frequency corresponding to the indoor environment temperature, and the first preset condition that the fin temperature of the first heat exchange zone of the indoor heat exchanger is greater than the first temperature corresponding to the dew point temperature of the air and the fin temperature of the second heat exchange zone of the indoor heat exchanger is less than the first temperature corresponding to the dew point temperature of the air is met for the first preset time, so that the condensate water is generated between the fins of the indoor heat exchanger and gathered into the water collecting tray for electrolysis by the electrolysis module to realize purification. During the electrolysis of the electrolysis module, the electrolysis parameter (for example, the electrolysis voltage or the electrolysis current) of the electrolysis module is adjusted according to the difference between the fin temperature of the second heat exchange zone of the indoor heat exchanger and the first temperature, so that the utilization rate of the condensate water is maximized. When the difference between the fin temperature of the second heat exchange zone of the indoor heat exchanger and the first temperature changes and the electrolysis parameter of the electrolysis module changes, the purification time of the electrolysis module is equal to the first preset time. When the difference between the fin temperature of the second heat exchange zone of the indoor heat exchanger and the first temperature changes but the electrolysis parameter of the electrolysis module does not change, the purification time of the electrolysis module is determined according to the first preset time and the difference between the fin temperature of the second heat exchange zone of the indoor heat exchanger and the first temperature. Then, the drying mode is executed to complete the water channel self-cleaning of the water collecting tray. Therefore, by using the composite heat exchanger with the first heat exchange zone and the second heat exchange zone as the indoor heat exchanger and using the electrolysis module arranged on the water collecting tray to electrolyze the condensate water to degerm and purify the water collecting tray, the water channel is prevented from being dirty and smelly, which is beneficial to human health.

[0101] According to the embodiment 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 4The structural diagram of an embodiment of the device of the application is shown. The air conditioner has an indoor unit and an outdoor unit, the indoor unit has an indoor heat exchanger and an indoor fan, the indoor heat exchanger has a first heat exchange area and a second heat exchange area, the first heat exchange area and the second heat exchange area of the indoor heat exchanger have different heat exchange performances; the outdoor unit has a compressor; a water collecting tray 1 is arranged below the indoor heat exchanger, an electrolysis module is arranged in the water channel of the water collecting tray 1 and located between the water collecting tray 1 and the indoor heat exchanger; 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 condensed water in the water channel of the water collecting tray 1 and are conducted, the electrolysis module can generate active sterilization substances to clean the water collecting tray 1. The scheme of the application provides a water collecting tray self-cleaning control scheme of an air conditioner, which aims to solve the problem of difficult cleaning of the dirty smell of the water collecting tray 1 in related schemes. In order to achieve the above purpose, as shown in Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 The scheme of the application first provides an air conditioner water collecting tray purification device. Figure 6 The structural diagram of the air conditioner water collecting tray purification device is shown, Figure 7 The structural diagram of the composite heat exchanger of the air conditioner is shown, Figure 8 The temperature difference curve of different heat exchange areas is shown, Figure 9 The structural diagram of the electrolysis module is shown. Figure 10 The structural diagram of the installation structure of the electrolysis module is shown, wherein (a) is the structural diagram of the installation structure one of the electrolysis module, and (b) is the structural diagram of the installation structure two of the electrolysis module.

[0102] As shown in Figure 6 and Figure 10As shown, the air conditioner comprises an indoor unit and an outdoor unit. The indoor unit has an air inlet 4, an indoor fan 8, an air outlet 5, and a deflector 9. The air duct, which is in communication with the air inlet 4 and the air outlet 5, has a water pan 1 and an environmental parameter detection device. The outdoor unit has a compressor, an outdoor fan, a condenser, and other components. An evaporator 7 is installed above the water pan 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, gather in the water pan 1, flow from the high position 11 of the water pan to the low position 12 of the water pan, and finally be discharged to the outside through the drain 2 and the drain pipe of the air conditioner. The evaporator 7 has fins 71 and copper pipes 72. The environmental parameter detection device is an air quality detection unit and an air temperature and humidity detection unit. The air quality detection unit is used to detect the air quality of the indoor environment and includes a PM2.5 sensor, a microorganism sensor, and the like. The air temperature and humidity detection unit is used to detect the temperature and humidity of the indoor environment and includes a temperature sensor, a humidity sensor, or a temperature and humidity sensor, and the like. In particular, the evaporator 7 is a composite heat exchanger, that is, the evaporator 7 comprises at least two or more different heat exchange zones. The difference in heat exchange performance of the heat exchange zones can be adjusted by the difference in performance of the copper pipe material (such as the copper pipe 72), the refrigerant flow path, and the fin material (such as the fin 71). For example, Figure 9 As shown, the water pan 1 and the evaporator 7 are provided with a water pan purification device. The water pan purification device is an electrolysis module (i.e., an electrolysis bacteria removal module 3), which includes a module main body, electrodes, and a power cord 33. 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. The electrodes are titanium electrodes (Ti), platinum electrodes (Pt), and other noble metal electrodes with high catalytic activity. When a certain voltage is applied, the electrodes are conductive, and 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. The number of electrolysis modules is determined according to the structure of the water pan to ensure that the electrolytic active substances can flow through all the areas of the water pan.

[0103] In some embodiments, the heat exchange performance of the first heat exchange zone of the indoor heat exchanger is lower than the heat exchange performance of the second heat exchange zone of the indoor heat exchanger. The length of the second heat exchange zone of the indoor heat exchanger can be adjusted (i.e., can be adjusted according to the length).

[0104] Figure 7The first heat exchange area (main heat exchange area) is a common fin area, which is produced by using conventional aluminum foil or hydrophilic aluminum foil, and mainly plays a role of refrigeration and heating. The second heat exchange area (special heat exchange area) is a special fin area, which is produced by using aluminum foil or copper foil (such as copper foil 6) with better heat exchange performance, and mainly plays a role of condensation to produce condensate water for electrolysis. Alternatively, under the same conditions, the effective amount of condensate water can also be adjusted and controlled by controlling the length d of the second heat exchange area (i.e., the proportion of the second heat exchange area in the entire heat exchanger).

[0105] The following is an example of a heat exchanger composed of aluminum foil and copper foil, as shown in Figure 8 The heat conduction performance of copper foil is better than that of aluminum foil, and the specific heat capacity is lower than that of aluminum foil, that is, under the same heat carried by the refrigerant in the copper pipe, the temperature of the second heat exchange area where the copper fin is located will be lower than that of the first heat exchange area where the aluminum fin is located in theory. The temperature difference range (i.e., ΔT a ) between the first heat exchange area and the second heat exchange area is related to the difference in heat exchange performance of different heat exchange areas. The benefit brought by this is that under the same dew point temperature, the temperature of the second heat exchange area will be the first to be lower than the dew point to occur preferential condensation, and the size of the condensation (condensation speed) is related to the difference (i.e., ΔT b ) between the temperature of the second heat exchange area and the dew point temperature. If the system parameters of the air conditioner are controlled well, even the dew point temperature T d between the temperature T1 of the first heat exchange area and the temperature T2 of the second heat exchange area (i.e., T1>T d ≥T2), at this time, the condensation always occurs in the second heat exchange area.

[0106] In some embodiments, the water channel of the water pan 1 has a high position and a low position; the number of electrolysis modules is more than one; and more than one electrolysis module is installed at the high position and / or the low position of the water channel of the water pan 1. That is, the electrolysis module is arranged at the high position 11 of the water pan, so that the number of electrolysis modules can be reduced, the control cost is reduced, and the electrolysis active substance can flow through the entire water pan with the condensate water to ensure the purification and sterilization effect on the entire area. Among them, the high position and the low position of the water pan 1 refer to the high position and the low position in the vertical direction.

[0107] In some embodiments, the water pan 1 has a high position and a low position, the second heat exchange area of the indoor heat exchanger is located at the position of the high position of the water channel of the water pan 1, and the electrolysis module is located between the second heat exchange area of the indoor heat exchanger and the water pan 1. In the scheme of the present application, the second heat exchange area of the evaporator 7 is located at the high position 11 of the water pan, and the electrolysis sterilization module 3 is arranged between the second heat exchange area and the water pan 1, so that the condensed water is only generated above the electrolysis module and can flow through the entire water pan area, and the condensed water can be maximally utilized to play a purifying role.

[0108] In the scheme of the present application, as shown in Figure 4 The control device of the air conditioner comprises an acquisition unit 102 and a control unit 104.

[0109] The acquisition unit 102 is configured to, in the case that the air conditioner is powered on and starts a cooling mode, acquire the pollution degree of the water pan 1, acquire the indoor environment temperature of the air conditioner, acquire the indoor air dew point temperature of the air conditioner, acquire the temperature of the first heat exchange area of the indoor heat exchanger, and acquire the temperature of the second heat exchange area of the indoor heat exchanger, if a self-cleaning instruction for self-cleaning of the water pan 1 is received. The specific functions and processes of the acquisition unit 102 are described in step S110.

[0110] In some embodiments, the acquisition unit 102 acquires the pollution degree of the water pan 1 by any one of the following acquisition methods:

[0111] The first acquisition method: the acquisition unit 102 is further configured to determine the pollution degree of the water pan 1 according to the cumulative running time of the air conditioner and the indoor average pollutant concentration of the room where the air conditioner is located. The acquisition unit 102 is further configured to specifically determine the product value of the cumulative running time t1 of the air conditioner, the indoor average pollutant concentration C of the room where the air conditioner is located, and the first calculation coefficient k1 as the pollution degree P of the water pan 1.

[0112] The second acquisition method: the acquisition unit 102 is further configured to determine the pollution degree of the water pan 1 according to the cumulative running time of the air conditioner or the interval time length from the current time to the last execution of the self-cleaning program. The acquisition unit 102 is further configured to specifically determine the pollution degree corresponding to the cumulative running time of the air conditioner or the interval time length from the current time to the last execution of the self-cleaning program as the pollution degree P of the water pan 1 according to the pre-determined corresponding relationship between the cumulative running time of the air conditioner or the interval time length from the current time to the last execution of the self-cleaning program and the pollution degree of the water pan 1.

[0113] The third obtaining manner: the obtaining unit 102 is specifically further configured to determine the pollution degree of the water pan 1 according to image information of the water pan 1. The obtaining unit 102 is specifically further configured to determine the pollution degree corresponding to the image information of the water pan 1 as the pollution degree P of the water pan 1 according to a predetermined corresponding relationship between the image information of the water pan 1 and the pollution degree of the water pan 1.

[0114] Figure 11 The flowchart of the water pan 1 self-cleaning control method of the air conditioner. In order to achieve the purpose of the present application, as shown in Figure 11 The scheme of the present application provides a water pan 1 self-cleaning control method of an air conditioner in combination with the above-mentioned composite heat exchanger and electrolysis bacteria removal module 3. As shown in Figure 11 The control method of the water pan 1 self-cleaning control method of the air conditioner includes the following processes:

[0115] Step 1, power on the air conditioner and then execute step 2.

[0116] Step 2, obtain the self-cleaning instruction of the user water pan 1, and then execute step 3.

[0117] Step 3, detect the pollution degree of the water pan 1 of the air conditioner and determine whether the self-cleaning program needs to be run, and then execute step 4.

[0118] In step 3, the pollution degree P of the water pan 1 is determined by combining the cumulative running time t1 of the air conditioner and the indoor average pollutant concentration C in the corresponding time period, that is, P = f1(t1, C). In particular, P = k1 x t1 x C. k1 is the pollutant deposition coefficient, which represents the degree of pollution of the water pan caused by the deposition and growth of pollutants. The cumulative running time t1 can be determined by the running time of the air conditioner motor, and the indoor average pollutant concentration C is obtained by real-time or timing detection by the indoor pollutant sensor and calculation of the corresponding average value.

[0119] Alternatively, the pollution degree of the water pan 1 can also be directly determined by the cumulative running time or the interval time from the last self-cleaning, or it can also achieve the effect of the present application by visual judgment through a camera or other visual technology.

[0120] In the scheme of the present application, the pollution degree of the water pan 1 is obtained in multiple ways, which can be applied to various application scenarios, making it more convenient and flexible to determine the pollution degree of the water pan 1.

[0121] The control unit 104 is configured to determine whether the water pan 1 needs to be self-cleaned according to the pollution degree of the water pan 1. The specific functions and processes of the control unit 104 are described in step S120.

[0122] In some embodiments, the control unit 104 determines whether the water receiving tray 1 needs to be self-cleaned according to the degree of contamination of the water receiving tray 1, including:

[0123] The control unit 104 is further configured to determine whether the contamination level of the water receiving tray 1 is greater than or equal to a preset contamination level, wherein the preset contamination level is, for example, a preset value P0. The specific functions and processing of the control unit 104 are further described in step S210.

[0124] The control unit 104 is further configured to determine that self-cleaning of the water receiving tray 1 is necessary if the degree of contamination of the water receiving tray 1 is determined to be greater than or equal to a preset contamination level. Alternatively, if the degree of contamination of the water receiving tray 1 is determined to be less than the preset contamination level, self-cleaning of the water receiving tray 1 is determined to be unnecessary. The specific functions and processing of the control unit 104 are further described in step S220.

[0125] like Figure 11 As shown, a method for controlling the self-cleaning of an air conditioner water tray 1 is provided. The control method further includes the following process: In step 3, if the contamination level P of the water tray 1 is less than a preset value P0, the judgment is negative, indicating that the air conditioner's cumulative operating time is not long or the air quality is good, the water tray 1 is not obviously dirty, and relevant cleaning is not required. If the contamination level P of the water tray 1 is greater than or equal to the preset value P0, the judgment is positive, indicating that the air conditioner has been running for a long time or the indoor air quality is poor, and the water tray 1 is likely to be dirty. The relevant cleaning program needs to be run as soon as possible, that is, step 4 is executed to ensure user health.

[0126] The control unit 104 is further configured to, if it determines that the water tray 1 needs to be self-cleaned, execute a preset self-cleaning program to control the electrolysis module to perform electrolytic sterilization and self-clean the water tray 1 based on the air conditioner's indoor ambient temperature, the air conditioner's indoor air dew point temperature, the temperature of the first heat exchange zone of the indoor heat exchanger, and the temperature of the second heat exchange zone of the indoor heat exchanger. Of course, if it is determined that the water tray 1 does not need to be self-cleaned, the air conditioner is controlled to maintain current operation. The specific functions and processing of the control unit 104 are further described in step S130.

[0127] The application provides a high-efficiency, long-lasting and non-consumable air conditioner water channel purification scheme, mainly solves the utilization of condensate water, and realizes the high-efficiency, long-lasting and non-consumable air conditioner water channel purification scheme based on a composite heat exchanger as an indoor heat exchanger. Because the indoor heat exchanger is distributed above the entire water channel, and the condensation cannot guarantee that the condensate water passes through the electrolysis module, the waste is obvious. Therefore, the composite heat exchanger with a first heat exchange area and a second heat exchange area is used as the indoor heat exchanger, the air conditioner is controlled to generate condensate water in a specific heat exchange area in combination with the composite heat exchanger, and the operating parameters of the electrolysis module are determined based on the condensate water generation condition, so that the active sterilization substance generated by electrolyzing the condensate water generated during the operation of the air conditioner by the electrolysis module flowing through the entire water receiving tray is used to realize the sterilization and purification of the water receiving tray 1, and the dirt problem of the water channel of the air conditioner can be better solved, which is beneficial to human health. Thus, the air conditioner antibacterial water channel in the related scheme cannot solve the problem of dirt and odor of the air conditioner water channel; the air conditioner water channel in the related scheme cannot solve the problem that the installation and replacement of the precipitated antibacterial module are inconvenient, the precipitation speed of the antibacterial substance is uncontrollable, and the long-acting property is poor; and the water channel purification device in the related scheme cannot solve the problem of low utilization rate of condensate water.

[0128] In some embodiments, the control unit 104 controls the electrolysis sterilization of the electrolysis module and the self-cleaning of the water receiving tray 1 in combination with the indoor environment temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange area of the indoor heat exchanger, and the temperature of the second heat exchange area of the indoor heat exchanger, including:

[0129] The control unit 104 is specifically further configured to determine the first frequency preset for the compressor in the cooling mode according to the indoor environment temperature of the air conditioner. The control unit 104 is specifically further configured to specifically determine the frequency corresponding to the indoor environment temperature of the air conditioner as the first frequency p1 preset for the compressor in the cooling mode according to the predetermined corresponding relationship between the indoor environment temperature of the air conditioner and the frequency of the compressor. The specific functions and processes of the control unit 104 are also described in step S310.

[0130] The control unit 104 is specifically further configured to control the compressor to operate at a first frequency preset in a cooling mode, and control the indoor fan to operate at a first wind speed preset in the cooling mode, and to start timing when the operating degree of the compressor and the indoor fan reaches a first preset condition, control the electrolysis module to start, and make the compressor and the indoor fan continue to operate; wherein the first preset condition is that the temperature of the first heat exchange zone of the indoor heat exchanger is greater than a first temperature corresponding to the indoor air dew point temperature of the air conditioner, and the temperature of the second heat exchange zone of the indoor heat exchanger is less than or equal to the first temperature corresponding to the indoor air dew point temperature of the air conditioner. The specific functions and processes of the control unit 104 are also described in step S320.

[0131] The control unit 104 is specifically further configured to control the compressor and the indoor fan to maintain the current operation after the operating time of the compressor and the indoor fan under the first preset condition reaches a first preset time, and control the electrolysis module to be closed, so that the indoor heat exchanger generates condensation and gathers into the water pan 1 to be electrolyzed by the electrolysis module to remove bacteria; wherein the first preset time is determined according to the cumulative operating time of the air conditioner. Specifically, the product value of the cumulative operating time t1 of the air conditioner and the second calculation coefficient k2 is determined as the first preset time t1. The specific functions and processes of the control unit 104 are also described in step S330.

[0132] The control unit 104 is specifically further configured to determine the purification time of the electrolysis module, and control the electrolysis module to operate for electrolysis and bacteria removal according to the purification time of the electrolysis module, to purify the water pan 1. The specific functions and processes of the control unit 104 are also described in step S340.

[0133] The control unit 104 is specifically further configured to control the air conditioner to close the cooling mode and open the heating mode after the electrolysis and bacteria removal operation of the electrolysis module is completed, control the compressor to operate at a second frequency preset in the heating mode, and control the indoor fan to operate at a second wind speed preset in the heating mode, set a drying time, and then exit the preset self-cleaning program to complete the self-cleaning of the water pan 1. The specific functions and processes of the control unit 104 are also described in step S350.

[0134] As shown in Figure 11 The control method for self-cleaning of the water pan 1 of the air conditioner further includes the following process: step 4, controlling the air conditioner to perform self-cleaning of the water pan 1. The self-cleaning process of the water pan 1 includes electrolysis and bacteria removal and drying processes, and the processes are performed in sequence, specifically including: the first electrolysis and bacteria removal process and the second drying process, and controlling the air conditioner to operate according to the corresponding parameters and modes.

[0135] Step 41, the electrolysis degerming process of the first step.

[0136] The fan in the air conditioner is controlled to run at a first air volume v1, and the compressor is controlled to run at a first frequency p1 until the running time under a first preset condition reaches a first preset time t1, so that condensation between the fins is generated and gathered into the water pan 1 for electrolysis to achieve purification; the first frequency corresponds to the indoor environment temperature, the first preset condition is that the fin temperature of the first heat exchange zone of the evaporator is greater than a first temperature, and the fin temperature of the second heat exchange zone is less than or equal to the first temperature, the first temperature corresponds to the dew point temperature corresponding to air; the environment temperature and the dew point temperature are detected and obtained by an environment temperature and humidity sensor, and the first frequency is determined accordingly; the first preset time is related to the pollution degree of the water pan 1 (i.e. the cumulative running time of the air conditioner), that is, t1=f2(t1). t1 represents the cumulative running time of the air conditioner, that is, the time of condensate water generation and the dirtiness of the water pan 1 are related. The dirtier the water pan 1 is, the more condensate water electrolysis is needed to generate more degerming substances. The dirtiness of the water pan 1 is related to the cumulative running time and the average concentration of pollutants as mentioned above, that is, the first preset time is related to the running time, which can be represented by a linear relationship, such as t1=k2xt1, k2 is a constant.

[0137] Step 42, the drying process of the second step.

[0138] The purification process is ended, the air conditioner is controlled to change from the refrigeration mode to the heating mode, the fan is controlled to run at a second air volume v2, and the compressor is controlled to run at a second frequency p2 until the running time under a second preset condition reaches a second preset time t2, so that the condensate water between the fins and in the water pan 1 is dried to avoid the problems of condensate water remaining in the water pan, causing the water pan 1 to be dirty and contaminated by microorganisms, etc.

[0139] In the scheme of the present application, the air conditioner is controlled to run according to corresponding parameters and modes. Specifically, according to user instructions or automatic detection and judgment of the air conditioner in combination with environmental parameters, the dirtiness of the water pan 1 is determined, when the dirtiness of the water pan 1 exceeds a necessary limit, the air conditioner is controlled to run at a certain air speed, frequency, etc. based on the pollution degree to generate condensate water in a specific heat exchange zone, and the electrolysis module is controlled to determine the optimal running parameters of the electrolysis module based on the condensate water generation, and finally the electrolysis module is used to electrolyze the condensate water to generate enough active sterilization substances, which are maintained for a certain time to sufficiently purify 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 and other areas of the air conditioner, completing the self-cleaning process of the water pan 1.

[0140] When it is judged that the water pan 1 does not need to be self-cleaned or the self-cleaning program of the water pan 1 is completed, the air conditioner is controlled to normally run in the mode required by the user, such as refrigeration and heating. In particular, when it is judged that the water pan 1 does not need to be self-cleaned, but the self-cleaning instruction of the water pan 1 comes from the user, the user is prompted by voice pushing, panel display, mobile phone pushing and the like that the water pan is currently clean and does not need to be self-cleaned, so as to avoid the user's doubt about the normal operation of the air conditioner.

[0141] Step 5, exit the self-cleaning mode of the water pan 1, and the air conditioner normally runs.

[0142] In the scheme of the present application, when the air conditioner is started, it can judge the dirt degree of the water pan 1 according to the user's requirement or automatically in combination with its own running state, and when it is judged that purification is needed, the air conditioner is controlled to generate condensate water in a specific heat exchange area in combination with the composite heat exchanger, and the electrolysis module is controlled to dynamically adjust the operating parameters of the electrolysis module based on the generation of the condensate water, thereby improving the water utilization rate of the condensate water and the electrolysis utilization rate. At this time, the electrolysis of the electrolysis module can generate the maximum active sterilization substance, which can fully purify harmful microorganisms after a certain time, and continue to control the air conditioner to run in the heating mode to dry the moisture in the internal water pan and other areas of the air conditioner, thereby completing the self-cleaning process of the water pan 1, realizing the persistent self-cleaning of the water pan 1, and being efficient, persistent and non-consumable, thereby ensuring the health of the user.

[0143] In some embodiments, the control unit 104 determines the purification time of the electrolysis module, including any of the following determination cases:

[0144] The first determination case: the control unit 104 is specifically further configured to determine a first preset time as the purification time of the electrolysis module, such as determining that the required purification time is equal to the first preset time, i.e. t1=t 净 .

[0145] The second determination case: the control unit 104 is specifically further configured to determine the purification time of the electrolysis module according to the cumulative running time of the air conditioner and the difference between the temperature of the second heat exchange area of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner. The control unit 104 is specifically further configured to specifically be the ratio of the cumulative running time t1 of the air conditioner and the difference ΔT b between the temperature of the second heat exchange area of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner, and the product value of the fourth calculation coefficient k4, which is determined as the purification time t 净 of the electrolysis module.

[0146] As Figure 11As shown, a self-cleaning control method of an air conditioner water pan 1, the control method further comprises the following process: in step 41, the air conditioner fan is controlled to run at a first wind speed v1, and the compressor is controlled to run at a first frequency p1 until the running time under the first preset condition reaches a first preset time t1, so that the condensation occurs between the fins and gathers into the water pan 1 for electrolysis to achieve purification. Even in the case of controlling the electrolysis module to run at the maximum utilization rate of the condensate, maintaining the above state for continuous running can achieve the electrolysis sterilization process of the water channel, and the required purification time is equal to the first preset time, that is, t1=t 净 .

[0147] In particular, when the difference between the second heat exchange area fin temperature and the dew point temperature changes, but the electrolysis parameter of the electrolysis module does not change, the electrolysis sterilization ability decreases, in order to ensure the same purification effect, the purification time needs to be correspondingly prolonged, which is related to the dirt degree of the water pan 1 and the difference between the second heat exchange area fin temperature and the dew point temperature in the electrolysis sterilization process, that is, t 净 =f4(t1, ΔT b ). The dirt condition of the water pan 1 (here represented by the cumulative time t1) and the amount of condensate (here represented by the temperature difference, representing the amount of purified substances generated by the final electrolysis) determine how long the final purification will take. Generally, the dirtier the water pan 1, the longer the purification time, and under the same dirt condition, the more purification substances, the less the purification time, so here t 净 =k4×t1 / ΔT b , k4 is a constant.

[0148] In the scheme of the present application, by controlling the air conditioner to generate condensate in a specific heat exchange area of the composite heat exchanger when it is determined that purification is needed, and determining the purification time of the electrolysis module, harmful microorganisms are sufficiently purified, and waste caused by excessive time is avoided, realizing the persistent self-cleaning of the water pan 1 and ensuring the health of the user.

[0149] In some embodiments, the control unit 104 controls the electrolysis module to perform electrolysis sterilization operation according to the purification time of the electrolysis module, including: the control unit 104 is specifically further configured to determine the electrolysis parameter of the electrolysis module according to the difference between the temperature of the second heat exchange area of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner during the process that the electrolysis module performs electrolysis sterilization operation according to the purification time of the electrolysis module; the control unit 104 is specifically further configured to specifically determine the product value of the difference ΔT b between the temperature of the second heat exchange area of the indoor heat exchanger and the indoor air dew point temperature of the air conditioner and the third calculation coefficient k3 as the electrolysis parameter of the electrolysis module, such as the voltage U of the electrolysis module.

[0150] The electrolysis parameter of the electrolysis module includes voltage of the electrolysis module or current of the electrolysis module.

[0151] As shown in FIG. 1, a self-cleaning control method of an air conditioner water pan 1 comprises the following steps: in step 41, the air conditioner fan is controlled to run at a first wind speed v1, and the compressor is controlled to run at a first frequency p1 until the running time under the first preset condition reaches a first preset time t1, so that the condensation water generated between the fins is collected into the water pan 1 for electrolysis to achieve purification. The electrolysis module running parameter is controlled to maximize the utilization rate of the condensation water. Figure 11

[0152] Since the air conditioner is always in cooling, the indoor temperature and humidity (same as the dew point) are constantly decreasing. At this time, the difference between the fin temperature of the second heat exchange area and the dew point temperature will change, that is, the condensation water production rate will change. In order to ensure the same electrolysis sterilization capacity, the electrolysis module running parameter needs to be controlled to maximize the utilization rate of the condensation water, that is, in the case of decreasing condensation water production rate, the same sterilization effect is ensured by increasing the electrolysis capacity. Specifically, the electrolysis parameter of the electrolysis module is controlled to maximize the utilization of condensation water to generate sufficient active sterilization substances. The electrolysis parameter is mainly the electrolysis voltage U (and / or current I), which is related to the difference ΔT between the fin temperature of the second heat exchange area and the first temperature (i.e. the dew point), that is, U = f3(ΔT b ). b When the difference between the fin temperature and the dew point temperature changes (which represents the condensation capacity, the greater the temperature difference, the lower the fin temperature than the dew point temperature, and the faster the condensation), the electrolysis module parameter (such as voltage) needs to be adjusted to ensure the electrolysis sterilization capacity; therefore, the simplest and direct linear representation is U = k3 x ΔT b , k3 is a constant.

[0153] In the above embodiment, ΔT b changes, the electrolysis parameter is adjusted, and the purification time is unchanged; or ΔT b changes, the electrolysis parameter is unchanged, and the purification time is adjusted.

[0154] ​The scheme of the present application can make the air conditioner generate condensate water in a specific heat exchange area when it is running according to the user's requirements or the self-judgment of the running state of the air conditioner, and can control the electrolysis module to dynamically adjust the running parameters of the electrolysis module based on the generation of the condensate water, thereby improving the utilization rate of the condensate water and the utilization rate of electrolysis. At this time, the electrolysis of the electrolysis module can generate the maximum active sterilization substance, and after a certain period of time, the harmful microorganisms can be fully purified. The air conditioner continues to run in the heating mode to dry the moisture in the air conditioner and the like, so that the self-cleaning process of the water pan 1 can be completed, the long-term self-cleaning of the water pan 1 can be realized, and the use health of the user can be ensured.

[0155] In addition, in some alternative embodiments, the system parameter adjustment ensures that ΔT b The fan in the air conditioner runs at a certain wind speed v, and the compressor runs at a certain frequency p until the running time under the third preset condition reaches the third preset time t3, so that condensation is generated between the fins and gathered into the water pan 1 for electrolysis to purify the water channel. The frequency corresponds to the ambient temperature, the third preset condition is that the fin temperature of the first heat exchange area of the evaporator is greater than the first temperature, the fin temperature of the second heat exchange area is less than the first temperature, and the difference ΔT b = m is a constant. The first temperature corresponds to the dew point temperature corresponding to the air. The ambient temperature and the dew point temperature are detected in real time by the environmental temperature and humidity sensor, and the real-time frequency and wind speed are determined accordingly. The third preset time is related to the pollution degree of the water pan 1 (i.e. the cumulative running time of the air conditioner), that is, t3 = f5(t1).

[0156] The scheme of the present application can make the air conditioner generate condensate water in a specific heat exchange area when it is running according to the user's requirements or the self-judgment of the running state of the air conditioner, and can control the electrolysis module to dynamically adjust the running parameters of the electrolysis module based on the generation of the condensate water, thereby improving the utilization rate of the condensate water and the utilization rate of electrolysis. At this time, the electrolysis of the electrolysis module can generate the maximum active sterilization substance, and after a certain period of time, the harmful microorganisms can be fully purified. The air conditioner continues to run in the heating mode to dry the moisture in the air conditioner and the like, so that the self-cleaning process of the water pan 1 can be completed, the long-term self-cleaning of the water pan 1 can be realized, and the use health of the user can be ensured.

[0157] Since the processing and functions realized by the device of the present embodiment are basically corresponding 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.

[0158] According to an embodiment of the present application, there is also provided an air conditioner corresponding to the control device of the air conditioner. The air conditioner can comprise the control device of the air conditioner as described above.

[0159] Figure 12 A schematic diagram of the structure of the water pan 1 self-cleaning control device of the air conditioner. In order to achieve the purpose of the present application, as shown in the figure, the scheme of the present application further provides an air conditioner control device for implementing the control method described above. The control device comprises a storage module, a processing module, and an air conditioner control program stored in the storage module and executable on the processing module. When the air conditioner control program is executed by the processing module, it implements each step of the air conditioner control method as described above. Figure 12

[0160] In order to achieve the purpose of the present application, the scheme of the present application further provides an air conditioner. The air conditioner comprises the composite heat exchanger, the electrolytic bacteria removal module and the control device described above. The control device can complete the control method described above by combining the functions of the composite heat exchanger and the air conditioner to achieve the desired effect of the present patent.

[0161] Since the processing and functions implemented by the air conditioner of the present embodiment are basically corresponding to the embodiments, principles and examples of the foregoing device, the description of the present embodiment does not elaborate on the related descriptions in the foregoing embodiments, which are not repeated here.

[0162] According to an embodiment of the present application, there is also provided a computer program product corresponding to the air conditioner, comprising a computer program which, when executed by a processor, implements the steps of the air conditioner control method described above.

[0163] Since the processing and functions implemented by the product of the present embodiment are basically corresponding to the embodiments, principles and examples of the foregoing air conditioner, the description of the present embodiment does not elaborate on the related descriptions in the foregoing embodiments, which are not repeated here.

[0164] According to an embodiment of the present application, there is also provided a storage medium corresponding to the control method of the air conditioner. The storage medium comprises a stored program, wherein when the program is executed, the device in which the storage medium is located executes the steps of the air conditioner control method described above.

[0165] Since the processing and functions implemented by the storage medium of the present embodiment are basically corresponding to the embodiments, principles and examples of the foregoing method, the description of the present embodiment does not elaborate on the related descriptions in the foregoing embodiments, which are not repeated here.

[0166] In summary, those skilled in the art can easily understand that the above-mentioned advantageous modes can be freely combined and superimposed without conflict.​

[0167] The above description is only the preferred embodiment of the application, and is not intended to limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall fall within the scope of the claims of the application.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner comprises an indoor unit and an outdoor unit, the indoor unit comprises an indoor heat exchanger and an indoor fan, the indoor heat exchanger comprises a first heat exchange area and a second heat exchange area, and the heat exchange performance of the first heat exchange area and the second heat exchange area of ​​the indoor heat exchanger are different; the outdoor unit comprises a compressor; a water receiving pan (1) is provided below the indoor heat exchanger, and an electrolysis module is provided in a water channel of the water receiving pan (1) and at a position between the water receiving pan (1) and the indoor heat exchanger; When the electrolysis module is turned on, the cathode and anode of the electrolysis module contact the condensed water in the water channel of the water receiving tray (1) and are connected, and the electrolysis module can generate active bactericidal substances to self-clean the water receiving tray (1); The control method of the air conditioner comprises: When the air conditioner is powered on and the cooling mode is turned on, if a self-cleaning instruction for self-cleaning the water receiving pan (1) is received, the degree of contamination of the water receiving pan (1) is obtained, the indoor ambient temperature of the air conditioner is obtained, the indoor air dew point temperature of the air conditioner is obtained, the temperature of the first heat exchange zone of the indoor heat exchanger is obtained, and the temperature of the second heat exchange zone of the indoor heat exchanger is obtained; Determining whether the water receiving tray (1) needs to be self-cleaned based on the degree of contamination of the water receiving tray (1); If it is determined that the water receiving tray (1) needs to be self-cleaned, a preset self-cleaning program is executed to: combine the indoor ambient temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange zone of the indoor heat exchanger, and the temperature of the second heat exchange zone of the indoor heat exchanger, control the electrolysis module to perform electrolytic sterilization, and self-clean the water receiving tray (1).

2. The air conditioner control method according to claim 1, characterized in that: in, The heat exchange performance of the first heat exchange zone of the indoor heat exchanger is lower than the heat exchange performance of the second heat exchange zone of the indoor heat exchanger; wherein the length of the second heat exchange zone of the indoor heat exchanger is adjustable; and / or, The water channel of the water receiving tray (1) has a high position and a low position; the number of the electrolysis modules is more than one; the more than one electrolysis modules are installed at the high position and / or the low position of the water channel of the water receiving tray (1); and / or, The water receiving pan (1) has a high position and a low position, the second heat exchange zone of the indoor heat exchanger is located at the high position of the water channel of the water receiving pan (1); the electrolysis module is located between the second heat exchange zone of the indoor heat exchanger and the water receiving pan (1).

3. The air conditioner control method according to claim 1, wherein: in, Obtaining the contamination degree of the water receiving tray (1) includes any of the following obtaining methods: Determining the degree of contamination of the water receiving tray (1) based on the accumulated operating time of the air conditioner and the average indoor pollutant concentration of the room where the air conditioner is located; Determining the degree of contamination of the water receiving tray (1) based on the accumulated operating time of the air conditioner or the interval between the current time of the air conditioner and the time when the self-cleaning program was last executed; Determining the degree of contamination of the water receiving tray (1) based on image information of the water receiving tray (1); and / or, Determining whether the water receiving tray (1) needs to be self-cleaned according to the degree of contamination of the water receiving tray (1), comprising: Determining whether the contamination level of the water receiving tray (1) is greater than or equal to a preset contamination level; If it is determined that the contamination degree of the water receiving tray (1) is greater than or equal to a preset contamination procedure, it is determined that the water receiving tray (1) needs to be self-cleaned.

4. The air conditioner control method according to any one of claims 1 to 3, characterized in that: In combination with the indoor ambient temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange zone of the indoor heat exchanger, and the temperature of the second heat exchange zone of the indoor heat exchanger, the electrolysis module is controlled to perform electrolytic sterilization and the water receiving tray (1) is self-cleaned, including: determining a first frequency preset for the compressor in a cooling mode according to an indoor ambient temperature of the air conditioner; Controlling the compressor to operate at a first frequency preset in the cooling mode and the indoor fan to operate at a first wind speed preset in the cooling mode, and timing until the operating levels of the compressor and the indoor fan reach a first preset condition, controlling the electrolysis module to start, and allowing the compressor and the indoor fan to continue operating; wherein the first preset condition is that the temperature of the first heat exchange zone of the indoor heat exchanger is greater than a first temperature corresponding to the dew point temperature of the indoor air of the air conditioner, and the temperature of the second heat exchange zone of the indoor heat exchanger is less than or equal to the first temperature corresponding to the dew point temperature of the indoor air of the air conditioner; Until the operating time of the compressor and the indoor fan under the first preset condition reaches a first preset time, the compressor and the indoor fan are controlled to maintain the current operation, and the electrolysis module is controlled to be turned off, so that condensation is generated in the indoor heat exchanger and collected in the water receiving tray (1) for electrolytic sterilization by the electrolysis module; wherein the first preset time is determined based on the accumulated operating time of the air conditioner; Determining the purification time of the electrolysis module, and controlling the electrolysis module to perform electrolysis sterilization operation according to the purification time of the electrolysis module to purify the water receiving tray (1); After the electrolytic sterilization operation of the electrolysis module 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, thereby completing the self-cleaning of the water receiving tray (1).

5. The air conditioner control method according to claim 4, characterized in that: Determining the purification time of the electrolysis module includes: Determining a first preset time as the purification time of the electrolysis module; or, The purification time of the electrolysis module is determined according to the accumulated operating time of the air conditioner and the difference between the temperature of the second heat exchange zone of the indoor heat exchanger and the dew point temperature of the indoor air of the air conditioner.

6. The air conditioner control method according to claim 4, characterized in that: Controlling the electrolysis module to perform electrolysis sterilization operation according to the purification time of the electrolysis module includes: During the electrolysis sterilization operation of the electrolysis module according to the purification time of the electrolysis module, the electrolysis parameters of the electrolysis module are determined according to the difference between the temperature of the second heat exchange zone of the indoor heat exchanger and the dew point temperature of the indoor air of the air conditioner; The electrolysis parameters of the electrolysis module include: the voltage of the electrolysis module or the current of the electrolysis module.

7. A control device for an air conditioner, characterized in that: The air conditioner comprises an indoor unit and an outdoor unit, the indoor unit comprises an indoor heat exchanger and an indoor fan, the indoor heat exchanger comprises a first heat exchange area and a second heat exchange area, and the heat exchange performance of the first heat exchange area and the second heat exchange area of ​​the indoor heat exchanger are different; the outdoor unit comprises a compressor; a water receiving pan (1) is provided below the indoor heat exchanger, and an electrolysis module is provided in a water channel of the water receiving pan (1) and at a position between the water receiving pan (1) and the indoor heat exchanger; When the electrolysis module is turned on, the cathode and anode of the electrolysis module contact the condensed water in the water channel of the water receiving tray (1) and are connected, and the electrolysis module can generate active bactericidal substances to self-clean the water receiving tray (1); The control device of the air conditioner comprises: An acquisition unit is configured to, when the air conditioner is powered on and the cooling mode is turned on, acquire the degree of contamination of the water receiving pan (1), acquire the indoor ambient temperature of the air conditioner, acquire the indoor air dew point temperature of the air conditioner, acquire the temperature of the first heat exchange zone of the indoor heat exchanger, and acquire the temperature of the second heat exchange zone of the indoor heat exchanger if a self-cleaning instruction for self-cleaning the water receiving pan (1) is received; A control unit is configured to determine whether the water receiving tray (1) needs to be self-cleaned according to the degree of contamination of the water receiving tray (1); The control unit is further configured to execute a preset self-cleaning program if it is determined that the water receiving tray (1) needs to be self-cleaned, so as to: control the electrolysis module to perform electrolytic sterilization and self-clean the water receiving tray (1) in combination with the indoor ambient temperature of the air conditioner, the indoor air dew point temperature of the air conditioner, the temperature of the first heat exchange zone of the indoor heat exchanger, and the temperature of the second heat exchange zone of the indoor heat exchanger.

8. An air conditioner, characterized in that: include: The control device for an air conditioner as claimed in claim 7.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the air conditioner control method according to any one of claims 1 to 6.

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

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