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

Abstract

The invention discloses an air conditioner, a control method and device of the air conditioner, a storage medium and a computer program product, and the method comprises the steps that under the condition that a refrigeration mode is started after the air conditioner is powered on, a compressor is controlled to operate according to a preset first frequency in the refrigeration mode, an indoor fan is controlled to operate according to a preset first wind gear in the refrigeration mode, and a second frequency is controlled to operate according to a preset second wind gear in the refrigeration mode; controlling the electrolysis module to start and start timing; when it is determined that the current of the electrolysis module becomes larger than 0 from 0, timing is stopped, and the current passing time of the electrolysis module is obtained; and according to the current passing time of the electrolysis module, if it is determined that self-cleaning needs to be conducted on the water receiving disc, a preset self-cleaning program is executed, so that the electrolysis module is controlled to conduct electrolysis sterilization and self-cleaning on the water receiving disc in combination with the current passing time of the electrolysis module and the indoor environment temperature and humidity of the air conditioner. According to the scheme, condensate water is electrolyzed through the electrolysis module arranged on the water pan to sterilize and purify the water pan, dirt and peculiar smell of a water channel are avoided, and human health is facilitated.

Description

Technical Field

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

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

[0003] Microorganisms such as bacteria are the key to the above problems, and the treatment methods in the relevant solutions are mainly to perform antibacterial treatment on the waterways of the air conditioner to inhibit the growth of microorganisms, thereby controlling the problem of waterway pollution. However, the antibacterial waterways of the air conditioner in the relevant solutions cannot solve the problem of dirty and odorous waterways of the air conditioner, which is not good for human health.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

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

[0006] The present invention provides a control method for an air conditioner, wherein the air conditioner has an indoor unit and an outdoor unit, wherein the indoor unit has an indoor heat exchanger and an indoor fan, and the outdoor unit has a compressor; a water receiving pan is arranged below the indoor heat exchanger, and an electrolysis module is arranged in a water channel of the water receiving pan; 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 pan, and the electrolysis module can produce active bactericidal substances to self-clean the water receiving pan; the control method for the air conditioner comprises: when the cooling mode is turned on after the air conditioner is powered on, controlling the compressor to operate at a first frequency preset in the cooling mode, and the indoor fan to operate at a first frequency preset in the cooling mode. The air conditioner is operated at one wind gear, and the electrolysis module is controlled to be turned on and start timing; the indoor environmental temperature and humidity of the air conditioner are obtained, and the current of the electrolysis module is obtained; when it is determined that the current of the electrolysis module changes from 0 to greater than 0, the timing is stopped, and the time from the electrolysis module being turned on to the current passing through is obtained, which is recorded as the current passing time of the electrolysis module; according to the current passing time of the electrolysis module, it is determined whether the water receiving tray needs to be self-cleaned; if it is determined that the water receiving tray needs to be self-cleaned, a preset self-cleaning program is executed to: combine the current passing time of the electrolysis module and the indoor environmental temperature and humidity of the air conditioner, control the electrolysis module to perform electrolytic sterilization, and perform self-cleaning on the water receiving tray.

[0007] In some embodiments, the water channel of the water receiving tray has a high position and a low position; the number of the electrolysis modules is more than one; and 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.

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

[0009] In some embodiments, determining whether the water receiving tray needs to be self-cleaned based on the current passage time of the electrolysis module also includes: retrieving the current passage time of the electrolysis module determined last time; determining the difference between the current passage time of the electrolysis module determined this time and the current passage time of the electrolysis module determined last time, recorded as the difference between two adjacent current passage times of the electrolysis module; and determining whether the difference between two adjacent current passage times of the electrolysis module is greater than or equal to a preset dirt time threshold; if it is determined that the difference between two adjacent current passage times of the electrolysis module is less than the preset dirt time threshold, it is determined that the water receiving tray does not need to be self-cleaned; if it is determined that the difference between two adjacent current passage times of the electrolysis module is greater than or equal to the preset dirt time threshold, it is determined that the water receiving tray needs to be self-cleaned.

[0010] In some embodiments, a preset self-cleaning program is executed to: control the electrolysis module to perform electrolytic sterilization and self-clean the water receiving tray in combination with the current passing time of the electrolysis module and the indoor environmental temperature and humidity of the air conditioner, including: executing a preset condensation mode under the preset self-cleaning program: controlling the valve of the drain nozzle of the water receiving tray to be closed, and determining the target condensation time of the air conditioner according to the current passing time of the electrolysis module; in the preset condensation mode, controlling the compressor to continue to operate at the first frequency preset in the cooling mode and the indoor fan to continue to operate at the first wind speed preset in the cooling mode; after running the target condensation time, according to the target condensation time, the current passing time of the electrolysis module and the indoor environmental temperature and humidity of the air conditioner The target electrolysis operation time of the electrolysis module is determined according to the ambient temperature and humidity, and the target sterilization time after the electrolysis operation of the electrolysis module is completed is determined; a preset sterilization mode is executed: the electrolysis module is controlled to perform electrolysis operation according to the target electrolysis operation time to produce active bactericidal substances; a preset drying mode is executed: after the electrolysis operation of the electrolysis module is completed and the electrolysis module is maintained powered on for the target sterilization time, the electrolysis sterilization of the electrolysis module is determined to be completed, the air conditioner is controlled to turn off the cooling mode and turn on the heating mode, the compressor is controlled to operate at the second frequency preset in the heating mode, and the indoor fan is controlled to operate at the second wind speed preset in the heating mode, and the preset self-cleaning program is exited after the drying time is set to complete the self-cleaning of the water receiving tray.

[0011] In some embodiments, the target electrolysis operation time of the electrolysis module is determined according to the target condensation time, the current passing time of the electrolysis module, and the indoor environmental temperature and humidity of the air conditioner, and the target sterilization time after the electrolysis operation of the electrolysis module is determined, including: determining the total amount of condensed water generated by the air conditioner in a preset condensation mode according to the indoor environmental temperature and humidity of the air conditioner before and after the target condensation time; determining the amount of condensed water hanging on the indoor heat exchanger according to the indoor environmental temperature and humidity of the air conditioner before and after the current passing time of the electrolysis module; comparing the total amount of condensed water generated by the air conditioner in the preset condensation mode with the indoor environmental temperature and humidity of the air conditioner; and determining the target sterilization time after the electrolysis operation of the electrolysis module is completed. The difference in water volume is determined as the effective condensed water volume in the water receiving tray; according to the corresponding relationship between the set condensed water volume and the set electrolysis time, the set electrolysis time corresponding to the set condensed water volume that is the same as the effective condensed water volume in the water receiving tray in the corresponding relationship is determined as the target electrolysis operation time of the electrolysis module; according to the corresponding relationship between the set electrolysis time, the set current passing time and the set sterilization time, the set electrolysis time that is the same as the target electrolysis operation time of the electrolysis module and the set sterilization time corresponding to the set current passing time corresponding to the current passing time of the electrolysis module in the corresponding relationship are determined as the target sterilization time after the electrolysis operation of the electrolysis module is completed.

[0012] In accordance with the above method, the present invention provides a control device for an air conditioner on the other hand, the air conditioner comprising an indoor unit and an outdoor unit, the indoor unit comprising an indoor heat exchanger and an indoor fan, and the outdoor unit comprising a compressor; a water receiving pan is arranged below the indoor heat exchanger, and an electrolysis module is arranged in the water channel of the water receiving pan; 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 pan, and the electrolysis module can produce active bactericidal substances to self-clean the water receiving pan; the control device for the air conditioner comprises: a control unit configured to control 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 when the cooling mode is turned on after the air conditioner is powered on. , and, controlling the electrolysis module to turn on and start timing; an acquisition unit is configured to obtain the indoor environmental temperature and humidity of the air conditioner, and obtain the current of the electrolysis module; when it is determined that the current of the electrolysis module changes from 0 to greater than 0, stop timing, and obtain the time from the electrolysis module being turned on to the current passing through, which is recorded as the current passing time of the electrolysis module; the control unit is also configured to determine whether the water receiving tray needs to be self-cleaned according to the current passing time of the electrolysis module; the control unit is also configured to execute a preset self-cleaning program if it is determined that the water receiving tray needs to be self-cleaned, so as to: combine the current passing time of the electrolysis module and the indoor environmental temperature and humidity of the air conditioner, control the electrolysis module to perform electrolytic sterilization, and self-clean the water receiving tray.

[0013] In some embodiments, the water channel of the water receiving tray has a high position and a low position; the number of the electrolysis modules is more than one; and 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.

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

[0015] In some embodiments, the control unit determines whether the water receiving tray needs to be self-cleaned based on the current passage time of the electrolysis module, and also includes: retrieving the current passage time of the electrolysis module determined last time; determining the difference between the current passage time of the electrolysis module determined this time and the current passage time of the electrolysis module determined last time, and recording it as the difference between two adjacent current passage times of the electrolysis module; and determining whether the difference between two adjacent current passage times of the electrolysis module is greater than or equal to a preset dirt time threshold; if it is determined that the difference between two adjacent current passage times of the electrolysis module is less than the preset dirt time threshold, it is determined that the water receiving tray does not need to be self-cleaned; if it is determined that the difference between two adjacent current passage times of the electrolysis module is greater than or equal to the preset dirt time threshold, it is determined that the water receiving tray needs to be self-cleaned.

[0016] In some embodiments, the control unit executes a preset self-cleaning program to: control the electrolysis module to perform electrolytic sterilization and self-clean the water receiving tray in combination with the current passing time of the electrolysis module and the indoor environmental temperature and humidity of the air conditioner, including: executing a preset condensation mode under the preset self-cleaning program: controlling the valve of the drain nozzle of the water receiving tray to be closed, and determining the target condensation time of the air conditioner according to the current passing time of the electrolysis module; in the preset condensation mode, controlling the compressor to continue to operate at the first frequency preset in the cooling mode and the indoor fan to continue to operate at the first wind speed preset in the cooling mode; after running the target condensation time, according to the target condensation time, the current passing time of the electrolysis module and the indoor environmental temperature and humidity of the air conditioner Indoor environmental temperature and humidity, determine the target electrolysis operation time of the electrolysis module, and determine the target sterilization time after the electrolysis operation of the electrolysis module is completed; execute the preset sterilization mode: control the electrolysis module to perform electrolysis operation according to the target electrolysis operation time to produce active bactericidal substances; execute the preset drying mode: after the electrolysis operation of the electrolysis module is completed and the electrolysis module is maintained powered on for the target sterilization time, determine that the electrolysis sterilization of the electrolysis module is completed, control the air conditioner to turn off the cooling mode and turn on the heating mode, control the compressor to operate at the second frequency preset in the heating mode, and the indoor fan to operate at the second wind speed preset in the heating mode, exit the preset self-cleaning program after setting the drying time, and complete the self-cleaning of the water receiving tray.

[0017] In some embodiments, the control unit determines the target electrolysis operation time of the electrolysis module according to the target condensation time, the current passing time of the electrolysis module, and the indoor environmental temperature and humidity of the air conditioner, and determines the target sterilization time after the electrolysis operation of the electrolysis module is completed, including: determining the total amount of condensed water generated by the air conditioner in a preset condensation mode according to the indoor environmental temperature and humidity of the air conditioner before and after the target condensation time; determining the amount of condensed water hanging on the indoor heat exchanger according to the indoor environmental temperature and humidity of the air conditioner before and after the current passing time of the electrolysis module; comparing the total amount of condensed water generated by the air conditioner in the preset condensation mode with the indoor environmental temperature and humidity of the air conditioner; The difference in the amount of condensed water is determined as the effective amount of condensed water in the water receiving tray; according to the correspondence between the set condensed water amount and the set electrolysis time, the set electrolysis time corresponding to the set condensed water amount that is the same as the effective amount of condensed water in the water receiving tray in the correspondence is determined as the target electrolysis operation time of the electrolysis module; according to the correspondence between the set electrolysis time, the set current passing time and the set sterilization time, the set electrolysis time that is the same as the target electrolysis operation time of the electrolysis module and the set sterilization time corresponding to the set current passing time corresponding to the current passing time of the electrolysis module in the correspondence are determined as the target sterilization time after the electrolysis operation of the electrolysis module is completed.

[0018] Matching the above device, the present invention provides an air conditioner on another aspect, including: the control device of the air conditioner described above.

[0019] Matching the above method, the present invention provides a storage medium on another aspect, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the steps of the air conditioner control method described above.

[0020] Matching the above method, the present invention further provides a computer program product on the other hand, including a computer program, which implements the steps of the above air conditioner control method when executed by a processor.

[0021] Therefore, the scheme of the present invention is to set an electrolysis module in the water channel of the water receiving tray below the evaporator in the indoor unit of the air conditioner, and when the air conditioner is turned on and runs in the cooling mode, the electrolysis module is turned on, and whether it is necessary to start the self-cleaning program of the air conditioner is determined according to the time when the current actually passes through the electrolysis module; when the self-cleaning program of the air conditioner needs to be started, the valve of the drain nozzle of the water receiving tray is controlled to be closed to run the condensation mode, and in the condensation mode, the indoor fan and the compressor are controlled to continue to run for a first preset time according to the operating parameters in the cooling mode, and the total amount of water generated by the air conditioner running in the condensation mode is determined according to the indoor environmental temperature and humidity before and after the first preset time, and the amount of water hanging of the indoor heat exchanger is determined according to the actual time when the current passes through the electrolysis module and the indoor environmental temperature and humidity, and the difference between the total amount of water and the amount of water hanging is determined as the effective condensed water amount, and the target electrolysis operation time and maintenance time of the electrolysis module are determined according to the effective condensed water amount, and then the drying mode is executed to complete the self-cleaning of the water channel of the water receiving tray; thereby, the electrolysis module set on the water receiving tray electrolyzes the condensed water to sterilize and purify the water receiving tray, so as to avoid dirt and odor in the water channel, which is beneficial to human health.

[0022] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention.

[0023] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a flow chart of an embodiment of a method for controlling an air conditioner of the present invention;

[0025] Figure 2 It is a flow chart of an embodiment of a first process of determining whether the water receiving tray 1 needs to be self-cleaned in the method of the present invention;

[0026] Figure 3 It is a flow chart of an embodiment of the second process of determining whether the water receiving tray 1 needs to be self-cleaned in the method of the present invention;

[0027] Figure 4 It is a schematic diagram of a flow chart of an embodiment of controlling the electrolysis module 3 for electrolytic sterilization in the method of the present invention;

[0028] Figure 5 It is a flow chart of an embodiment of determining the target electrolysis operation time and the target sterilization time of the electrolysis module 3 in the method of the present invention;

[0029] Figure 6 A schematic structural diagram of an embodiment of a control device for an air conditioner of the present invention;

[0030] Figure 7 This is the status of biological slime pollution in the waterway of the air conditioner;

[0031] Figure 8 It is a structural schematic diagram of a water tray purification device for an air conditioner;

[0032] Fig. 9 It is a structural schematic diagram of the electrolysis module;

[0033] Fig.10 Schematic diagrams of the installation structure of the electrolysis module, wherein (a) is a schematic diagram of the installation structure 1 of the electrolysis module, and (b) is a schematic diagram of the installation structure 2 of the electrolysis module;

[0034] Fig.11 A flow chart of a water tray self-cleaning control method for an air conditioner;

[0035] Fig.12 This is a schematic diagram of the water volume of the air conditioner at different life attenuation;

[0036] Fig.13 This is a schematic diagram of the dirtiness of the air conditioner under different water hanging amounts;

[0037] Fig.14 The figure is a schematic diagram of the structure of the water tray self-cleaning control device of the air conditioner.

[0038] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

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

[0040] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] Considering that the antibacterial water channel of the air conditioner in the relevant scheme cannot solve the problem of dirty and smelly water channel of the air conditioner, it is not good for human health. For example: the contact antibacterial method, such as antibacterial treatment of the surface material of the water channel, has limited effect, especially when the surface of the antibacterial water channel is covered with pollutants, it can no longer continue to work. The precipitation antibacterial method uses the condensed water remaining in the water channel to precipitate the antibacterial substance to work, but the speed is uncontrollable, the effect is difficult to last, and it will not work for a long time. The replaceable precipitation antibacterial module can solve some problems, but for the narrow water channel and crowded internal structure of the air conditioner, it is difficult to replace and install. In short, the relevant schemes cannot solve the problem of dirty water channels of air conditioners well, which is not good for human health.

[0042] Therefore, the scheme of the present invention proposes a control method for an air conditioner, specifically a self-cleaning control method for the water channel of an air conditioner, and provides a water channel purification scheme for an air conditioner that is efficient, durable and free of consumables. The condensed water generated by the operation of the air conditioner is electrolyzed by an electrolysis module arranged on the water receiving tray to generate active bactericidal substances that flow through the entire water receiving tray to achieve sterilization and purification of the water receiving tray. This can better solve the problem of dirtiness of the water channel of the air conditioner and is beneficial to human health.

[0043] According to an embodiment of the present invention, a method for controlling an air conditioner is provided. Figure 1 The flowchart of an embodiment of the method of the present invention is shown in the figure. The air conditioner has an indoor unit and an outdoor unit, the indoor unit has an indoor heat exchanger and an indoor fan, and the outdoor unit has a compressor; a water receiving pan 1 is arranged below the indoor heat exchanger, and an electrolysis module 3 is arranged in the water channel of the water receiving pan 1; when the electrolysis module 3 is turned on, the cathode and anode of the electrolysis module 3 contact the condensed water in the water channel of the water receiving pan 1, and the electrolysis module 3 can produce active bactericidal substances to self-clean the water receiving pan 1.

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

[0045] The present invention proposes a self-cleaning control scheme for the water tray of an air conditioner, the purpose of which is to solve the problems in related schemes such as the water tray being dirty and smelly and difficult to clean. In order to achieve the above purpose, Figure 8 , Fig. 9 , Fig.10 As shown, the solution of the present invention first provides a water tray purification device for an air conditioner. Figure 8 The schematic diagram of the structure of the water tray purification device of the air conditioner is shown in FIG. Figure 8 As shown, the electrolysis module is installed upstream of the waterway to achieve the waterway cleaning effect required by the solution of the present invention. Fig. 9 Schematic diagram of the structure of the electrolysis module. Fig.10 The schematic diagrams are schematic diagrams of the installation structure of the electrolysis module, wherein (a) is a schematic diagram of the installation structure 1 of the electrolysis module, and (b) is a schematic diagram of the installation structure 2 of the electrolysis module.

[0046] like Figure 8 and Fig.10 As shown, the air conditioner includes an indoor unit and an outdoor unit, wherein the indoor unit has an air inlet 4, an internal fan 8, an air outlet 5 and an air guide plate 9, and the air duct connected to the air inlet 4 and the air outlet 5 has a water receiving pan 1 and an environmental parameter detection device (such as a temperature and humidity sensor 6). The outdoor unit has components such as a compressor, an external fan and a condenser. An evaporator 7 is installed above the water receiving 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 and converge into the water receiving pan 1, and flow from the high position 11 of the water receiving pan 1 to the low position 12 of the water receiving pan, and finally be discharged to the outside through the drain nozzle 2 through the drain pipe of the air conditioner. Optionally, the drain nozzle 2 has a controllable opening and closing valve, and the condensed water in the water receiving pan 1 can be controlled by opening and closing the valve. Fig.10 The two arrangements and quantities are shown in combination with the drainage differences of the air conditioner water tray 1, so that the electrolytic condensed water can flow through the entire water tray 1 area. The environmental parameter detection device is an air temperature and humidity detection unit, which is used to detect the indoor environmental temperature and humidity, including a temperature sensor, a humidity sensor or a temperature and humidity sensor 6, etc.

[0047] like Fig. 9As shown, a water tray purification device is provided in the water tray 1. The water tray purification device is a water electrolysis module 3, comprising a module body and electrodes, and a power cord 33; wherein the electrodes are 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 precious metal electrodes such as titanium electrodes (Ti) and platinum electrodes (Pt) with high catalytic activity. When they are energized and conducted at a certain voltage, the electrolysis of water can produce active bactericidal substances such as hydroxyl free radicals and hypochlorous acid with strong oxidizing properties, which can effectively eliminate bacteria and other microorganisms. At the same time, based on the working principle of the electrolysis module 3, when the electrolysis module 3 works at the rated voltage, it is necessary to ensure that the two discharge electrodes (cathode and anode) are mutually conductive to play an electrolytic role, that is, even if the electrolysis module 3 is powered, but there is no water near the electrode, the electrolysis module 3 cannot work normally, which is manifested as a stable voltage and a current of 0. When the water volume appears and the electrode is turned on to play a role, the current has a value, and it gradually increases to the rated current as the water volume increases and remains stable. Using this feature, the time when the accessory starts working is used to determine whether there is water. For the air conditioner, condensed water will be generated during the refrigeration process, and the condensed water will flow down along the fins of the evaporator 7 and gather in the water receiving tray. Because the fins of the evaporator 7 are hydrophilic fins, theoretically, the condensed water generated by the air conditioner will quickly spread on the fins and flow downstream, that is, as long as condensed water is generated, it will flow to the water receiving tray below in time. The electrolysis module 3 will generate a certain current reading when it contacts the condensed water. The time interval from the start of the air conditioner to the generation of the reading by the electrolysis module 3 is very short and can be basically ignored. The above is a relatively ideal situation. In fact, the hydrophilicity of the fins of the air conditioner will decay to a certain extent during use. In addition, due to dust accumulation on the surface of the heat exchanger (such as evaporator 7), part of the condensed water generated by the air conditioner will remain on the surface of the fins, that is, water hanging occurs. In other words, for the air conditioner actually used, the condensed water generated by the air conditioner will first remain on the heat exchanger (hanging water), and will not flow into the water receiving tray until it reaches a certain thickness (carrying capacity), that is, there will be a certain time interval from the start of the air conditioner to the generation of the reading of the electrolytic module 3. Obviously, for air conditioners with different dirt conditions and different fin life, the hanging water conditions are different. Considering that the life decay of the hydrophilic coating of the fins of the evaporator 7 is relatively stable, different intervals correspond to different air conditioner dirt conditions, and the more serious the hanging water condition, the more obvious the dirt, and the longer the interval.

[0048] In the solution of the present invention, the number of the electrolysis modules 3 is determined according to the structure of the water receiving tray 1 to ensure that the electrolytically active substances can flow through the entire water receiving tray 1 area. Preferably, the electrolysis modules 3 are arranged at a high position of the water receiving tray 1, so that the number of electrolysis modules 3 can be reduced and the cost can be controlled. At the same time, the electrolytically active substances can flow through the entire water receiving tray 1 with the condensed water to ensure the purification and sterilization effect of the entire area. Optionally, when the structure of the above-mentioned controllable opening and closing of the drain nozzle 2 is adopted, because the condensed water can be kept in the water receiving tray 1 for a long time when the drain nozzle 2 is closed, the electrolysis module 3 can be well realized at any position of the water receiving tray 1 to ensure the purification effect.

[0049] In the scheme of the present invention, Figure 1 As shown, the control method of the air conditioner includes: steps S110 to S150.

[0050] At step S110, when the cooling mode is turned on after the air conditioner is powered on, the compressor is controlled to operate at a first frequency preset in the cooling mode, and the indoor fan is controlled to operate at a first wind speed preset in the cooling mode. In addition, when the self-cleaning mode of the air conditioner is turned on, the electrolysis module 3 is controlled to turn on and start timing. Fig.11 FIG. 1 is a flow chart of a method for controlling the self-cleaning of the water tray 1 of the air conditioner. Fig.11 As shown, the air conditioner water tray 1 self-cleaning control method includes: step 1, the air conditioner is powered on and operated, and then step 2 is performed. Step 2, the user's water tray 1 self-cleaning instruction is obtained, and then step 3 is performed.

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

[0052] At step S130, it is determined whether the current of the electrolysis module 3 changes from 0 to greater than 0. When it is determined that the current of the electrolysis module 3 changes from 0 to greater than 0, the timing is stopped to obtain the time from when the electrolysis module 3 is turned on to when current passes through, which is recorded as the current passing time of the electrolysis module 3 (such as obtaining the time t when current actually passes through the electrolysis module 3); and the current passing time of the electrolysis module 3 within a set period of time is stored.

[0053] In step S140, it is determined whether the water receiving tray 1 needs to be self-cleaned according to the current passing time of the electrolysis module 3. Fig.11As shown, the self-cleaning control method of the water receiving tray 1 of the air conditioner also includes: step 3, detecting and obtaining the degree of contamination of the water receiving tray 1 of the air conditioner, and judging whether it is necessary to run the self-cleaning program, and then executing step 4. The degree of contamination of the water receiving tray 1 is strongly correlated with the degree of contamination of the heat exchanger, and the degree of contamination of the heat exchanger is strongly correlated with the time interval during which current actually passes through the electrolysis module 3. Based on this, the degree of contamination of the water receiving tray 1 can be indirectly judged by the time interval during which current actually passes through the electrolysis module 3.

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

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

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

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

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

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

[0060] Step 31, control the air conditioner's internal fan to run at the first wind speed v1, and the compressor to run at the first frequency p1, until they run for a certain period of time under the first preset condition, so that condensation can be generated between the fins of the evaporator 7 and gathered in the water receiving tray 1; the first frequency p1 corresponds to the ambient temperature, and the first preset condition is that the tube temperature of the evaporator 7 is less than or equal to the first temperature, and the first temperature corresponds to the dew point temperature corresponding to the air; the ambient temperature and the dew point temperature are detected and obtained by the ambient temperature and humidity sensor, and the first frequency p1 is determined accordingly, and then step 32 is executed. Among them, the ambient temperature is the indoor temperature, which is mainly used to determine the dew point temperature. Specifically, combined with the enthalpy-humidity diagram (i.e., a diagram that characterizes the relationship between different ambient temperatures, different relative humidity, different moisture content, etc.), it can be seen that under the same humidity, the dew point temperature corresponding to different temperatures is unique.

[0061] Step 32, synchronously control the electrolysis module 3 to be powered on and run, and detect the time t when the electrolysis module 3 actually has current passing through it; wherein, the start time of the electrolysis module 3 is taken as the zero point, and the above time t is the time interval starting from the zero point, and then execute step 33.

[0062] Step 33, by collecting the water hanging conditions of the air conditioner under different heat exchanger dirty environments, taking into account the water hanging conditions caused by the life attenuation of the hydrophilic fins of the air conditioner under normal use, and combining expert experience and consumers' acceptance of dirtiness, the dirtiness judgment threshold time t0 of the heat exchanger can be determined.

[0063] Fig.12 This is a schematic diagram of the water volume of the air conditioner at different life attenuation. Fig.13 The water hanging data of the air conditioner under different heat exchanger dirty environments can be obtained through experiments and after-sales data, such as Fig.12 The figure shows the amount of water hanging (characterized by the duration of water hanging) under different life attenuation (characterized by the cumulative running time of the air conditioner). Under normal use of the air conditioner, the aging of the fin coating and other reasons will also cause the problem of water hanging. The aging is different under different running time, and the amount of water hanging (duration) is also different. The life attenuation and water hanging data of different hydrophilic fins under normal use can be obtained through accelerated experiments and after-sales data, such as Fig.13 The figure shows the contamination situation under the same hanging water volume (characterized by hanging water time). The contamination situation is mainly judged by the hanging water time obtained by actual test, but the hanging water problem caused by the aging of the air conditioner mentioned above should be excluded, that is, tt in the figure T , and then the degree of dirtiness can be judged by the amount of water hanging (duration). Among them, different life attenuation is characterized by the accumulated running time T of the air conditioner when making specific judgments, and the accumulated running time T can be determined by the running time of the air conditioner motor. For example: combined with Fig.12 , Fig.13 In the example shown, by testing the water dripping duration (actual test duration) of air conditioners in different dirty conditions (including the influence of life attenuation), and the water dripping duration of air conditioners with different lives (to exclude the influence of life attenuation), the water dripping situation of air conditioners in different dirty conditions can be obtained under the condition of excluding their own influence. Then, combined with people's acceptance of dirt, the water dripping duration threshold can be determined.

[0064] t T is the theoretical duration. The actual duration after removing the theoretical t from the time t when current actually passes through the electrolysis module 3 T is t - t T , so as to exclude the water dripping situation caused by the life attenuation of the air conditioner itself. By comparing the relationship between the actual duration after removing the theoretical duration (i.e., t - t T ) and the threshold duration t0, the severity of its dirt can be judged, that is, by judging whether t - t T ≥t0, it is judged whether self-cleaning needs to be performed: if so, step 4 is executed to run the water channel self-cleaning program, otherwise the air conditioner is controlled to maintain the current operation.

[0065] In step 33, when t - t T <t0, it is judged as no, indicating that the dirt situation of the water receiving tray 1 of the air conditioner is not serious and relevant cleaning can be omitted; especially, when it is judged that the water receiving tray 1 does not need self-cleaning, but the self-cleaning instruction of the water receiving tray 1 comes from the user, methods such as voice push, panel display, and mobile phone push are required to prompt the user that the water receiving tray 1 is currently clean and does not need self-cleaning, so as to avoid the user's doubts about the normal operation of the air conditioner function.

[0066] When t - t T ≥t0, it is judged as yes, indicating that the air conditioner has been running for a long time and the possibility of dirt on the water receiving tray 1 is relatively high, and the water channel self-cleaning program needs to be run to ensure the healthy use of the user.

[0067] Step 34: When it is judged that the air conditioner does not need to execute the self-cleaning instruction of the water receiving tray 1, the air conditioner stops the current cooling operation mode and stands by or runs according to the user-set mode; when it is judged that the air conditioner needs to execute the self-cleaning instruction of the water receiving tray 1, the air conditioner is controlled to execute the next step, that is, step 4.

[0068] In the scheme of the present invention, when the air conditioner is turned on and running, it can automatically detect and determine the degree of dirtiness of the water receiving tray in combination with the operating parameters of the electrolysis module, and when it is determined that purification is needed, the amount of water hanging and the effective condensed water amount of the air conditioner are determined based on the operating parameters of the electrolysis module to determine the optimal operating parameters, and then the condensed water is electrolyzed by the electrolysis module and maintained for a certain period of time so that harmful microorganisms can be fully purified. Thereafter, the air conditioner is controlled to operate in a heating mode with a certain wind speed, frequency, etc. to dry the moisture in the water receiving tray and other areas inside the air conditioner, completing the self-cleaning process of the water receiving tray, thereby achieving long-term self-cleaning of the water receiving tray, and achieving high efficiency, durability and no consumables, ensuring the health of users.

[0069] In some embodiments, step S140 determines whether the water receiving tray 1 needs to be self-cleaned according to the current passing time of the electrolysis module 3, and also includes: a second process of determining whether the water receiving tray 1 needs to be self-cleaned.

[0070] Combine the following Figure 3 The flowchart of an embodiment of the second process of determining whether the water receiving tray 1 needs to be self-cleaned in the method of the present invention further illustrates the specific process of the second process of determining whether the water receiving tray 1 needs to be self-cleaned in step S140, including: steps S310 to S340.

[0071] Step S310, retrieve the current passing time of the electrolysis module 3 determined last time.

[0072] Step S320, determining the difference between the current passing time of the electrolysis module 3 determined this time and the current passing time of the electrolysis module 3 determined last time, and recording it as the difference between two adjacent current passing times of the electrolysis module 3; and determining whether the difference between two adjacent current passing times of the electrolysis module 3 is greater than or equal to a preset contamination time threshold. The current passing time of the electrolysis module 3 determined last time is t 前 , when the current passing time of the electrolysis module 3 determined for the first time is t 后 , preset the dirtiness time threshold such as threshold duration t0.

[0073] Step S330: If it is determined that the time difference between two adjacent current flow through the electrolysis module 3 is less than a preset contamination time threshold, it is determined that the water receiving tray 1 does not need to be self-cleaned.

[0074] Step S340: If it is determined that the time difference between two adjacent current passages of the electrolysis module 3 is greater than or equal to a preset contamination time threshold, it is determined that the water receiving tray 1 needs to be self-cleaned.

[0075] The above embodiment mainly compares the actual duration after removing the theoretical duration (ie, ttT ) Indirectly judge the severity of the dirt on the water receiving tray 1 based on the relationship with the threshold duration t0. In fact, since the life attenuation of the hydrophilic coating of the air conditioner heat exchanger is relatively slow, that is, the change in the life of the hydrophilic coating between the previous and the next time is not significant. That is to say, the degree of dirt on the heat exchanger can be determined by comparing the duration change of the time t when there is actually current passing through the electrolysis module 3 before and after, and then indirectly judge the degree of dirt on the water receiving tray 1.

[0076] Specifically, define the duration before and after as t 后 and t 前 : When t 后 -t 前 <t0, it is judged as no, indicating that the dirt condition of the water receiving tray 1 of the air conditioner is not serious and relevant cleaning can be omitted; when t 后 -t 前 ≥t0, it is judged as yes, indicating that the air conditioner has been running for a long time and the possibility of dirt on the water receiving tray 1 is relatively high, and the water channel self-cleaning program needs to be run to ensure the healthy use of users.

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

[0078] The water channel self-cleaning control scheme of the air conditioner proposed by the solution of the present invention provides a water channel purification scheme for the air conditioner that is efficient, durable and consumable-free. The electrolysis module provided on the water receiving tray electrolyzes the condensed water generated during the operation of the air conditioner to generate active bactericidal substances, which flow through the entire water receiving tray to achieve the sterilization and purification of the water receiving tray, solving the problem that the antibacterial water channel of the air conditioner cannot solve the problem of dirt and peculiar smell in the water channel of the air conditioner, avoiding the dirt and peculiar smell in the water channel, and being beneficial to human health.

[0079] In some embodiments, when executing the preset self-cleaning program in step S150 to: control the electrolysis module 3 to perform electrolytic sterilization in combination with the current passing time of the electrolysis module 3 and the indoor environmental temperature and humidity of the air conditioner, and perform self-cleaning on the water receiving tray 1, the specific process is as follows in the following exemplary description.

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

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

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

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

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

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

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

[0087] Specifically, the air conditioner automatically detects and determines the degree of dirtiness of the water receiving tray 1 according to user instructions or the operating parameters of the electrolysis module 3. When the degree of dirtiness of the water receiving tray 1 exceeds the necessary limit, the air conditioner is controlled to operate at a certain wind speed, frequency, etc. based on the degree of pollution to produce a certain amount of condensed water, and the amount of water hanging and the effective amount of condensed water are determined in combination with the start time of the electrolysis module 3 to determine the optimal operating parameters of the electrolysis module 3. Finally, the electrolysis module 3 electrolyzes the condensed water to produce sufficient active bactericidal substances, which are maintained for a certain period of time so that harmful microorganisms are fully purified. Thereafter, the air conditioner is controlled to operate in a heating mode at a certain wind speed, frequency, etc. to dry the moisture in the water receiving tray 1 and other areas inside the air conditioner, thereby completing the self-cleaning process of the water receiving tray 1.

[0088] In the scheme of the present invention, the dirtiness of the water receiving tray and the amount of water hanging of the air conditioner are judged based on the operating parameters of the electrolysis module, and then the effective condensed water amount of the air conditioner and the optimal operating parameters are determined based on the amount of water hanging of the air conditioner; in this way, a high-efficiency, long-lasting and non-consumable self-cleaning scheme for the water channel is realized by electrolyzing condensed water through the electrolysis module, and the dirtiness of the water receiving tray and the amount of water hanging of the air conditioner are judged in combination with the operating parameters of the electrolysis module to determine the optimal operating parameters of the air conditioner, which solves the problems of inconvenient installation and replacement of precipitation-type antibacterial modules in the water channel of the air conditioner, uncontrollable precipitation speed of antibacterial substances, and poor long-term effectiveness, thereby ensuring the water channel cleaning effect and achieving high-efficiency, long-lasting and non-consumable water channel purification of the air conditioner.

[0089] In some embodiments, in step S430, the target electrolysis operation time of the electrolysis module 3 is determined according to the target condensation time, the current passing time of the electrolysis module 3, and the indoor environment temperature and humidity of the air conditioner, and the specific process of determining the target sterilization time after the electrolysis operation of the electrolysis module 3 is determined, see the following exemplary description.

[0090] Combine the following Figure 5 The flowchart of an embodiment of determining the target electrolysis operation time and the target sterilization time of the electrolysis module 3 in the method of the present invention is shown, which further illustrates the specific process of determining the target electrolysis operation time and the target sterilization time of the electrolysis module 3 in step S430, including: steps S510 to S550.

[0091] Step S510, determining the total amount of condensed water generated by the air conditioner in a preset condensation mode (such as the total amount of water Q generated by the air conditioner in the condensation mode) according to the indoor environment temperature and humidity of the air conditioner before and after the target condensation time. 总 ).

[0092] Step S520, determining the amount of condensed water hanging on the indoor heat exchanger (such as the hanging water amount Q of the air conditioner) according to the indoor environment temperature and humidity of the air conditioner before and after the current of the electrolysis module 3 passes through.挂 ).

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

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

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

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

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

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

[0099] Combined with the above electrolysis module 3 start-up time t, the water hanging amount Q of the air conditioner is determined 挂 , the amount of water hanging Q 挂 The environmental parameter detection device of the air conditioner detects the environmental temperature and humidity T when the electrolysis module 3 is turned on for the operation time t t RH t , and combined with the ambient temperature and humidity T0 and RH0 at the beginning of self-cleaning, it can be determined. Among them, the water hanging amount Q of the air conditioner is determined 挂 When the electrolysis module 3 is turned on, the time point is taken as the time point, that is, there is condensed water before but the electrolysis module 3 is not working, then this part of the condensed water is hanging on the air conditioner and does not flow down.

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

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

[0102] Step 42, the second step of the electrolytic sterilization process.

[0103] Control the electrolysis module 3 according to the electrolysis time t 电 Run to produce enough active bactericidal substances and maintain them for a certain time t 维 Here, after the electrolysis is completed, the harmful microorganisms are allowed to stand for a period of time. The purpose of electrolysis is to produce effective substances and purify them at the same time. After the electrolysis is completed, the effective substances still exist for a period of time and can continue to play a role. At this time, no electrolysis is continued. The maintenance time t 维 With electrolysis time t电 And the degree of contamination of the water tray 1 (using tt T Characterization) related, that is, t 维 =f1(t 电 、tt T The purpose of maintenance is to further achieve the purification effect, the dirtiness (tt T ) determines the time required for electrolysis and maintenance, but there is a limit to electrolysis (the amount of water determines the limit of effective substances produced by electrolysis), so a period of maintenance time is required to ensure the purification effect. Because the amount of condensed water has been determined by considering the dirtiness above, the purpose of maintenance is more of an additional layer of protection, t 维 =f1(t 电 、tt T ) can be expressed linearly, such as t 维 =m3*t 电 +m4(tt T ), or it can be controlled directly with a fixed value, m3 and m4 are both constants.

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

[0105] After the purification process is finished, the valve of the drain nozzle 2 of the water receiving tray 1 of the air conditioner is controlled to open, and the condensed water is discharged. At the same time, the air conditioner is converted from the cooling mode to the heating mode, and the internal fan is controlled to run at the second wind speed v2, and the compressor is operated at the second frequency p2, until the operation time under the second preset condition reaches the second preset time t2, so that the condensed water between the fins and in the water receiving tray 1 is dried, and the condensed water is prevented from remaining in the water receiving tray 1, causing the water receiving tray 1 to be dirty and microbially contaminated. Among them, the wind speed and frequency here are still used to determine the pipe temperature. The second preset condition is that the pipe temperature must reach a certain temperature. The amount of condensed water varies with the operation time under the second preset condition. The purpose is to ensure that the condensed water is completely dried. Therefore, the parameters here are all variable. The adjustment of the wind speed frequency affects the pipe temperature, but the pipe temperature can be high or low. If it is higher, it will blow less, and if it is lower, it will blow more; if there is more water, it will blow more, and if there is less water, it will blow less.

[0106] In the scheme of the present invention, the dirtiness of the water receiving tray and the amount of water hanging in the air conditioner are judged based on the operating parameters of the electrolysis module, and then the effective condensed water amount and the optimal operating parameters of the air conditioner are determined based on the amount of water hanging in the air conditioner. In other words, the effective amount of condensed water is determined and then the parameter control of the electrolysis module 3 is determined, so as to realize self-cleaning of the water receiving tray 1 of the air conditioner and achieve long-term cleaning effect.

[0107] Due to the adoption of the scheme of the present invention, when the air conditioner is turned on and running, it can automatically detect and determine the degree of dirtiness of the water receiving tray 1 in combination with the operating parameters of the electrolysis module 3, and when it is determined that purification is needed, the amount of water hanging and the effective amount of condensed water of the air conditioner are determined based on the operating parameters of the electrolysis module 3 to determine the optimal operating parameters, and then the condensed water is electrolyzed by the electrolysis module 3 and maintained for a certain period of time so that harmful microorganisms can be fully purified, and then the air conditioner is controlled to operate in a heating mode with a certain wind speed, frequency, etc. to dry the moisture in the water receiving tray 1 and other areas inside the air conditioner, completing the self-cleaning process of the water receiving tray 1, realizing long-term self-cleaning of the water receiving tray 1, and being efficient, durable and without consumables, ensuring the health of users.

[0108] According to the technical solution of the present embodiment, an electrolysis module is arranged in the water channel of the water receiving tray below the evaporator in the indoor unit of the air conditioner. When the air conditioner is turned on and the cooling mode is operated, the electrolysis module is turned on. According to the time when the current actually passes through the electrolysis module, it is determined whether the self-cleaning program of the air conditioner needs to be started. When the self-cleaning program of the air conditioner needs to be started, the valve of the drain nozzle of the water receiving tray is controlled to be closed to operate the condensation mode. In the condensation mode, the indoor fan and the compressor are controlled to continue to operate for a first preset time according to the operating parameters in the cooling mode. According to the indoor environmental temperature and humidity before and after the first preset time, the total amount of water generated by the air conditioner in the condensation mode is determined. According to the time when the current actually passes through the electrolysis module and the indoor environmental temperature and humidity, the amount of water hanging on the indoor heat exchanger is determined. The difference between the total amount of water and the amount of water hanging is determined as the effective condensed water amount. According to the effective condensed water amount, the target electrolysis operation time and the maintenance time of the electrolysis module are determined, and then the drying mode is executed to complete the self-cleaning of the water channel of the water receiving tray. Thus, the electrolysis module arranged on the water receiving tray electrolyzes the condensed water to sterilize and purify the water receiving tray, thereby avoiding dirt and odor in the water channel, which is beneficial to human health.

[0109] According to an embodiment of the present invention, a control device for an air conditioner corresponding to the control method for the air conditioner is also provided. Figure 6 The schematic diagram of the structure of an embodiment of the device of the present invention 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, and the outdoor unit has a compressor; a water receiving tray 1 is arranged below the indoor heat exchanger, and an electrolysis module 3 is arranged in the water channel of the water receiving tray 1; when the electrolysis module 3 is turned on, the cathode and anode of the electrolysis module 3 contact the condensed water in the water channel of the water receiving tray 1, and the electrolysis module 3 can produce active bactericidal substances to self-clean the water receiving tray 1.

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

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

[0112] like Figure 8 and Fig.10 As shown, the air conditioner includes an indoor unit and an outdoor unit, wherein the indoor unit has an air inlet 4, an internal fan 8, an air outlet 5 and an air guide plate 9, and the air duct connected to the air inlet 4 and the air outlet 5 has a water receiving pan 1 and an environmental parameter detection device (such as a temperature and humidity sensor 6). The outdoor unit has components such as a compressor, an external fan and a condenser. An evaporator 7 is installed above the water receiving 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 and converge into the water receiving pan 1, and flow from the high position 11 of the water receiving pan 1 to the low position 12 of the water receiving pan, and finally be discharged to the outside through the drain nozzle 2 through the drain pipe of the air conditioner. Optionally, the drain nozzle 2 has a controllable opening and closing valve, and the condensed water in the water receiving pan 1 can be controlled by opening and closing the valve. Fig.10 The two arrangements and quantities are shown in combination with the drainage differences of the air conditioner water tray 1, so that the electrolytic condensed water can flow through the entire water tray 1 area. The environmental parameter detection device is an air temperature and humidity detection unit, which is used to detect the indoor environmental temperature and humidity, including a temperature sensor, a humidity sensor or a temperature and humidity sensor 6, etc.

[0113] like Fig. 9As shown, a water tray purification device is provided in the water tray 1. The water tray purification device is a water electrolysis module 3, comprising a module body and electrodes, and a power cord 33; wherein the electrodes are 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 precious metal electrodes such as titanium electrodes (Ti) and platinum electrodes (Pt) with high catalytic activity. When they are energized and conducted at a certain voltage, the electrolysis of water can produce active bactericidal substances such as hydroxyl free radicals and hypochlorous acid with strong oxidizing properties, which can effectively eliminate bacteria and other microorganisms. At the same time, based on the working principle of the electrolysis module 3, when the electrolysis module 3 works at the rated voltage, it is necessary to ensure that the two discharge electrodes (cathode and anode) are mutually conductive to play an electrolytic role, that is, even if the electrolysis module 3 is powered, but there is no water near the electrode, the electrolysis module 3 cannot work normally, which is manifested as a stable voltage and a current of 0. When the water volume appears and the electrode is turned on to play a role, the current has a value, and it gradually increases to the rated current as the water volume increases and remains stable. Using this feature, the time when the accessory starts working is used to determine whether there is water. For the air conditioner, condensed water will be generated during the refrigeration process, and the condensed water will flow down along the fins of the evaporator 7 and gather in the water receiving tray. Because the fins of the evaporator 7 are hydrophilic fins, theoretically, the condensed water generated by the air conditioner will quickly spread on the fins and flow downstream, that is, as long as condensed water is generated, it will flow to the water receiving tray below in time. The electrolysis module 3 will generate a certain current reading when it contacts the condensed water. The time interval from the start of the air conditioner to the generation of the reading by the electrolysis module 3 is very short and can be basically ignored. The above is a relatively ideal situation. In fact, the hydrophilicity of the fins of the air conditioner will decay to a certain extent during use. In addition, due to dust accumulation on the surface of the heat exchanger (such as evaporator 7), part of the condensed water generated by the air conditioner will remain on the surface of the fins, that is, water hanging occurs. In other words, for the air conditioner actually used, the condensed water generated by the air conditioner will first remain on the heat exchanger (hanging water), and will not flow into the water receiving tray until it reaches a certain thickness (carrying capacity), that is, there will be a certain time interval from the start of the air conditioner to the generation of the reading of the electrolytic module 3. Obviously, for air conditioners with different dirt conditions and different fin life, the hanging water conditions are different. Considering that the life decay of the hydrophilic coating of the fins of the evaporator 7 is relatively stable, different intervals correspond to different air conditioner dirt conditions, and the more serious the hanging water condition, the more obvious the dirt, and the longer the interval.

[0114] In the solution of the present invention, the number of the electrolysis modules 3 is determined according to the structure of the water receiving tray 1 to ensure that the electrolytically active substances can flow through the entire water receiving tray 1 area. Preferably, the electrolysis modules 3 are arranged at a high position of the water receiving tray 1, so that the number of electrolysis modules 3 can be reduced and the cost can be controlled. At the same time, the electrolytically active substances can flow through the entire water receiving tray 1 with the condensed water to ensure the purification and sterilization effect of the entire area. Optionally, when the structure of the above-mentioned controllable opening and closing of the drain nozzle 2 is adopted, because the condensed water can be kept in the water receiving tray 1 for a long time when the drain nozzle 2 is closed, the electrolysis module 3 can be well realized at any position of the water receiving tray 1 to ensure the purification effect.

[0115] In the scheme of the present invention, Figure 6 As shown, the control device of the air conditioner includes: an acquisition unit 102 and a control unit 104.

[0116] The control unit 104 is configured to control the compressor to operate at a preset first frequency in the cooling mode and the indoor fan to operate at a preset first wind speed in the cooling mode when the cooling mode is turned on after the air conditioner is powered on, and to control the electrolysis module 3 to turn on and start timing when the self-cleaning mode of the air conditioner is turned on. The specific functions and processing of the control unit 104 refer to step S110. Fig.11 FIG. 1 is a flow chart of a method for controlling the self-cleaning of the water tray 1 of the air conditioner. Fig.11 As shown, the air conditioner water tray 1 self-cleaning control method includes: step 1, the air conditioner is powered on and operated, and then step 2 is performed. Step 2, the user's water tray 1 self-cleaning instruction is obtained, and then step 3 is performed.

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

[0118] Determine whether the current of the electrolysis module 3 changes from 0 to greater than 0. When it is determined that the current of the electrolysis module 3 changes from 0 to greater than 0, stop timing, obtain the time from the electrolysis module 3 being turned on to the current passing through, and record it as the current passing time of the electrolysis module 3 (such as obtaining the time t when the current actually passes through the electrolysis module 3); and store the current passing time of the electrolysis module 3 within a set period of time. The specific functions and processing of the control unit 104 are also referred to step S130.

[0119] The control unit 104 is further configured to determine whether the water receiving tray 1 needs to be self-cleaned according to the current passing time of the electrolysis module 3. The specific functions and processing of the control unit 104 are also shown in step S140. Fig.11As shown, the self-cleaning control method of the water receiving tray 1 of the air conditioner also includes: step 3, detecting and obtaining the degree of contamination of the water receiving tray 1 of the air conditioner, and judging whether it is necessary to run the self-cleaning program, and then executing step 4. The degree of contamination of the water receiving tray 1 is strongly correlated with the degree of contamination of the heat exchanger, and the degree of contamination of the heat exchanger is strongly correlated with the time interval during which current actually passes through the electrolysis module 3. Based on this, the degree of contamination of the water receiving tray 1 can be indirectly judged by the time interval during which current actually passes through the electrolysis module 3.

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

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

[0122] The control unit 104 is further configured to determine that it is not necessary to self-clean the water receiving tray 1 if it is determined that the difference between the current passing time of the electrolysis module 3 and the preset current passing time threshold is less than the preset dirt time threshold. The specific functions and processing of the control unit 104 are also shown in step S220.

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

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

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

[0126] Step 32, synchronously control the electrolysis module 3 to be powered on and run, and detect the time t when the electrolysis module 3 actually has current passing through it; wherein, the start time of the electrolysis module 3 is taken as the zero point, and the above time t is the time interval starting from the zero point, and then execute step 33.

[0127] Step 33, by collecting the water hanging conditions of the air conditioner under different heat exchanger dirty environments, taking into account the water hanging conditions caused by the life attenuation of the hydrophilic fins of the air conditioner under normal use, and combining expert experience and consumers' acceptance of dirtiness, the dirtiness judgment threshold time t0 of the heat exchanger can be determined.

[0128] Fig.12 This is a schematic diagram of the water volume of the air conditioner at different life attenuation. Fig.13 The water hanging data of the air conditioner under different heat exchanger dirty environments can be obtained through experiments and after-sales data, such as Fig.12 The figure shows the water-retention amount (characterized by the water-retention time) under different life attenuation (characterized by the cumulative running time of the air conditioner). The life attenuation and water-retention data of different hydrophilic fins under normal use can be obtained through accelerated experiments and after-sales data, such as Fig.13 The figure shows the dirtiness under the same water hanging amount (characterized by the hanging time). Among them, different life attenuation is characterized by the accumulated running time T of the air conditioner when making specific judgments, and the accumulated running time T can be determined by the running time of the air conditioner motor.

[0129] t T is the theoretical duration, the actual time t when current flows through the electrolysis module 3 minus the theoretical t T The actual duration after the duration is tt T By comparing the actual duration after removing the theoretical duration (i.e. tt T The relationship between the value of tt and the threshold time t0 can be used to determine the severity of the dirtiness, that is, to determine whether tt T ≥t0, determine whether self-cleaning is required: if so, execute step 4 to run the waterway self-cleaning program, otherwise control the air conditioner to maintain the current operation.

[0130] In step 33, when t - t T <t0, it is judged as no, indicating that the dirt condition of the water receiving tray 1 of the air conditioner is not serious and relevant cleaning may not be required. In particular, when it is judged that the water receiving tray 1 does not require self - cleaning but the self - cleaning instruction for the water receiving tray 1 comes from the user, methods such as voice push, panel display, and mobile phone push are needed to prompt the user that the water receiving tray 1 is currently clean and does not require self - cleaning, so as to avoid the user's doubts about the normal operation of the air conditioner function.

[0131] When t - t T ≥t0, it is judged as yes, indicating that the air conditioner has been running for a long time and the possibility of dirt on the water receiving tray 1 is relatively high. It is necessary to run the water channel self - cleaning program to ensure the healthy use of the user.

[0132] Step 34: When it is judged that the air conditioner does not need to execute the self - cleaning instruction for the water receiving tray 1, the air conditioner stops the current cooling operation mode and stands by or operates according to the user - set mode; when it is judged that the air conditioner needs to execute the self - cleaning instruction for the water receiving tray 1, the air conditioner is controlled to execute the next step, that is, step 4.

[0133] In the solution of the present invention, when the air conditioner is turned on and running, it can automatically detect and judge the dirt degree of the water receiving tray in combination with the operation parameters of the electrolysis module. When it is judged that purification is required, the water hanging amount and effective condensation water amount of the air conditioner are determined based on the operation parameters of the electrolysis module to determine the optimal operation parameters. Then, the electrolysis module electrolyzes the condensed water and maintains it for a certain time so that harmful microorganisms are fully purified. After that, the air conditioner is controlled to operate in a heating mode at a certain wind speed, frequency, etc. to dry the moisture in areas such as the water receiving tray inside the air conditioner, completing the self - cleaning process of the water receiving tray, realizing the persistent self - cleaning of the water receiving tray, and being efficient, persistent, and consumable - free, ensuring the healthy use of the user.

[0134] In some embodiments, the control unit 104 determines whether to perform self - cleaning on the water receiving tray 1 according to the current passing time of the electrolysis module 3, and further includes:

[0135] The control unit 104 is specifically further configured to retrieve the current passing time of the electrolysis module 3 determined last time. For the specific functions and processes of this control unit 104, refer to step S310.

[0136] The control unit 104 is specifically further configured to determine the difference between the current passing time of the electrolysis module 3 obtained in the current determination and the current passing time of the electrolysis module 3 obtained in the previous determination, which is denoted as the difference between the adjacent two current passing times of the electrolysis module 3; and determine whether the difference between the adjacent two current passing times of the electrolysis module 3 is greater than or equal to a preset dirt time threshold; wherein, the current passing time of the electrolysis module 3 obtained in the previous determination is like t 前 , and the current passing time of the electrolysis module 3 obtained in the current determination is like t 后 , and the preset dirt time threshold is like the threshold duration t0. For the specific functions and processing of this control unit 104, refer to step S320.

[0137] The control unit 104 is specifically further configured to determine that self-cleaning of the water receiving tray 1 is not required if it is determined that the difference between the adjacent two current passing times of the electrolysis module 3 is less than the preset dirt time threshold. For the specific functions and processing of this control unit 104, refer to step S330.

[0138] The control unit 104 is specifically further configured to determine that self-cleaning of the water receiving tray 1 is required if it is determined that the difference between the adjacent two current passing times of the electrolysis module 3 is greater than or equal to the preset dirt time threshold. For the specific functions and processing of this control unit 104, refer to step S340.

[0139] In the above embodiments, the severity of the dirt on the water receiving tray 1 is indirectly judged mainly by comparing the relationship between the actual duration (i.e., t - t T ) after removing the theoretical duration and the threshold duration t0. In fact, since the decay of the hydrophilic coating life of the air conditioner heat exchanger is relatively slow, that is, the change in the hydrophilic coating life between the previous and the next time is not large, which means that the dirt degree of the heat exchanger can be determined by comparing the duration change of the actual current passing time t of the electrolysis module 3 before and after, and thus the dirt degree of the water receiving tray 1 can be indirectly judged.

[0140] Specifically, define the durations before and after as t 后 and t 前 : when t 后 - t 前 < t0, it is judged as no, indicating that the dirt condition of the water receiving tray 1 of the air conditioner is not serious and relevant cleaning can be omitted; when t 后 - t 前 ≥ t0, it is judged as yes, indicating that the air conditioner has been running for a long time, the possibility of dirt on the water receiving tray 1 is relatively high, and it is necessary to run the water channel self-cleaning program to ensure the healthy use of users.

[0141] The control unit 104 is also 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 3 to perform electrolysis sterilization and self-clean the water receiving tray 1 in combination with the current passing time of the electrolysis module 3 and the indoor environmental temperature and humidity of the air conditioner; specifically, if it is determined that the water receiving tray 1 needs to be self-cleaned, execute a preset self-cleaning program; under the preset self-cleaning program, control the electrolysis module 3 to perform electrolysis sterilization and self-clean the water receiving tray 1 in combination with the current passing time of the electrolysis module 3 and the indoor environmental temperature and humidity of the air conditioner. Of course, if it is determined that the water receiving tray 1 does not need to be self-cleaned, the air conditioner is controlled to maintain the current operation. The specific functions and processing of the control unit 104 can also be found in step S150.

[0142] The scheme of the present invention proposes a self-cleaning control scheme for the water channel of the air conditioner, which provides a water channel purification scheme for the air conditioner that is efficient, durable and free of consumables. The electrolysis module arranged on the water receiving tray electrolyzes the condensed water generated by the operation of the air conditioner to generate active bactericidal substances that flow through the entire water receiving tray to achieve sterilization and purification of the water receiving tray, thereby solving the problem that the antibacterial water channel of the air conditioner cannot solve the problem of dirt and odor in the water channel of the air conditioner, avoiding dirt and odor in the water channel, and being beneficial to human health.

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

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

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

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

[0147] The control unit 104 is further configured to execute a preset sterilization mode under a preset self-cleaning program after the preset condensation mode ends: control the electrolysis module 3 to perform electrolysis operation according to the target electrolysis operation time to produce active bactericidal substances, and then maintain the target sterilization time after the electrolysis operation of the electrolysis module 3 ends, so that the active bactericidal substances can self-clean the water receiving tray 1. The specific functions and processing of the control unit 104 can also be seen in step S440.

[0148] The control unit 104 is further configured to execute a preset drying mode under a preset self-cleaning program after the preset sterilization mode ends: after the electrolysis operation of the electrolysis module 3 ends and the electrolysis module (3) continues to be powered on for the target sterilization time, determine that the electrolysis sterilization of the electrolysis module (3) ends, control the air conditioner to turn off the cooling mode and turn on the heating mode, control the compressor to operate at a preset second frequency in the heating mode, and the indoor fan to operate at a preset second wind speed in the heating mode, exit the preset self-cleaning program after the drying time is set, and complete the self-cleaning of the water receiving tray 1. The specific functions and processing of the control unit 104 are also shown in step S450.

[0149] like Fig.11 As shown, the air conditioner water tray 1 self-cleaning control method also includes: step 4, controlling the air conditioner to perform self-cleaning of the water tray 1. The water tray 1 self-cleaning process includes condensation, electrolytic sterilization and drying processes. The process is performed in sequence, specifically including: the first step of condensation process, the second step of electrolytic sterilization process and the third step of drying process, and the air conditioner is controlled to operate according to the corresponding parameters and modes.

[0150] Specifically, the air conditioner automatically detects and determines the degree of dirtiness of the water receiving tray 1 according to user instructions or the operating parameters of the electrolysis module 3. When the degree of dirtiness of the water receiving tray 1 exceeds the necessary limit, the air conditioner is controlled to operate at a certain wind speed, frequency, etc. based on the degree of pollution to produce a certain amount of condensed water, and the amount of water hanging and the effective amount of condensed water are determined in combination with the start time of the electrolysis module 3 to determine the optimal operating parameters of the electrolysis module 3. Finally, the electrolysis module 3 electrolyzes the condensed water to produce sufficient active bactericidal substances, which are maintained for a certain period of time so that harmful microorganisms are fully purified. Thereafter, the air conditioner is controlled to operate in a heating mode at a certain wind speed, frequency, etc. to dry the moisture in the water receiving tray 1 and other areas inside the air conditioner, thereby completing the self-cleaning process of the water receiving tray 1.

[0151] In the scheme of the present invention, the dirtiness of the water receiving tray and the amount of water hanging of the air conditioner are judged based on the operating parameters of the electrolysis module, and then the effective condensed water amount of the air conditioner and the optimal operating parameters are determined based on the amount of water hanging of the air conditioner; in this way, a high-efficiency, long-lasting and non-consumable self-cleaning scheme for the water channel is realized by electrolyzing condensed water through the electrolysis module, and the dirtiness of the water receiving tray and the amount of water hanging of the air conditioner are judged in combination with the operating parameters of the electrolysis module to determine the optimal operating parameters of the air conditioner, which solves the problems of inconvenient installation and replacement of precipitation-type antibacterial modules in the water channel of the air conditioner, uncontrollable precipitation speed of antibacterial substances, and poor long-term effectiveness, thereby ensuring the water channel cleaning effect and achieving high-efficiency, long-lasting and non-consumable water channel purification of the air conditioner.

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

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

[0154] The control unit 104 is further configured to determine the amount of condensed water hung on the indoor heat exchanger (such as the amount of condensed water hung on the air conditioner Q) according to the indoor ambient temperature and humidity of the air conditioner before and after the current of the electrolysis module 3 passes through. 挂 ). The specific functions and processing of the control unit 104 also refer to step S520.

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

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

[0157] The control unit 104 is further configured to determine, according to the correspondence between the set electrolysis time, the set current passing time and the set sterilization time, the set electrolysis time which is the same as the target electrolysis operation time of the electrolysis module 3 and the set sterilization time corresponding to the set current passing time corresponding to the current passing time of the electrolysis module 3 in the correspondence as the target sterilization time after the electrolysis operation of the electrolysis module 3 is completed. The specific functions and processing of the control unit 104 are also shown in step S550.

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

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

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

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

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

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

[0164] Step 42, the second step of the electrolytic sterilization process.

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

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

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

[0168] In the scheme of the present invention, the dirtiness of the water receiving tray and the amount of water hanging in the air conditioner are judged based on the operating parameters of the electrolysis module, and then the effective condensed water amount and the optimal operating parameters of the air conditioner are determined based on the amount of water hanging in the air conditioner. In other words, the effective amount of condensed water is determined and then the parameter control of the electrolysis module 3 is determined, so as to realize self-cleaning of the water receiving tray 1 of the air conditioner and achieve long-term cleaning effect.

[0169] Due to the adoption of the scheme of the present invention, when the air conditioner is turned on and running, it can automatically detect and determine the degree of dirtiness of the water receiving tray 1 in combination with the operating parameters of the electrolysis module 3, and when it is determined that purification is needed, the amount of water hanging and the effective amount of condensed water of the air conditioner are determined based on the operating parameters of the electrolysis module 3 to determine the optimal operating parameters, and then the condensed water is electrolyzed by the electrolysis module 3 and maintained for a certain period of time so that harmful microorganisms can be fully purified, and then the air conditioner is controlled to operate in a heating mode with a certain wind speed, frequency, etc. to dry the moisture in the water receiving tray 1 and other areas inside the air conditioner, completing the self-cleaning process of the water receiving tray 1, realizing long-term self-cleaning of the water receiving tray 1, and being efficient, durable and without consumables, ensuring the health of users.

[0170] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0171] According to an embodiment of the present invention, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner may include: the control device of the air conditioner described above.

[0172] Fig.14 FIG. 1 is a schematic diagram of the structure of the self-cleaning control device of the water tray 1 of the air conditioner. Fig.14 As shown, the solution of the present invention further provides an air conditioner control device for completing the above control method. 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, each step of the air conditioner control method described above is implemented.

[0173] In order to achieve the above purpose, the solution of the present invention further provides an air conditioner. The air conditioner comprises the above electrolytic sterilization module and a control device, and the control device can complete the above control method through the electrolytic sterilization module combined with the air conditioner function to achieve the desired effect of the present patent.

[0174] Since the processing and functions implemented by the air conditioner of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

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

[0176] Since the processing and functions implemented by the product of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned air conditioner, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

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

[0178] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0179] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0180] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

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, and the outdoor unit comprises a compressor; a water receiving tray (1) is arranged below the indoor heat exchanger, and an electrolysis module (3) is arranged in the water channel of the water receiving tray (1); when the electrolysis module (3) is turned on, the cathode and anode of the electrolysis module (3) contact the condensed water in the water channel of the water receiving tray (1) and the electrolysis module (3) is able to 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, the compressor is controlled to operate at a first frequency preset in the cooling mode, the indoor fan is controlled to operate at a first wind speed preset in the cooling mode, and the electrolysis module (3) is controlled to start and start timing; Acquiring the indoor environmental temperature and humidity of the air conditioner, and acquiring the current of the electrolysis module (3); When it is determined that the current of the electrolysis module (3) changes from 0 to greater than 0, the timing is stopped, and the time from when the electrolysis module (3) is turned on to when the current flows through is obtained, which is recorded as the current flow time of the electrolysis module (3); Determining whether the water receiving tray (1) needs to be self-cleaned according to the current passing time of the electrolysis module (3); 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 current passing time of the electrolysis module (3) and the indoor environmental temperature and humidity of the air conditioner, control the electrolysis module (3) 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: The water channel of the water receiving tray (1) has a high position and a low position; The number of the electrolysis modules (3) is more than one; the more than one electrolysis modules (3) are installed at a high position and / or a low position of the water channel of the water receiving tray (1).

3. The air conditioner control method according to claim 1 or 2, characterized in that: Determining whether the water receiving tray (1) needs to be self-cleaned according to the current passing time of the electrolysis module (3), comprising: Determining whether the difference between the current passing time of the electrolysis module (3) and a preset current passing time threshold is greater than or equal to a preset contamination time threshold; If it is determined that the difference between the current passing time of the electrolysis module (3) and a preset current passing time threshold is less than a preset dirtiness time threshold, it is determined that the water receiving tray (1) does not need to be self-cleaned; If it is determined that the difference between the current passing time of the electrolysis module (3) and a preset current passing time threshold is greater than or equal to a preset dirtiness time threshold, it is determined that the water receiving tray (1) needs to be self-cleaned.

4. The air conditioner control method according to claim 1 or 2, characterized in that: Determining whether the water receiving tray (1) needs to be self-cleaned according to the current passing time of the electrolysis module (3), further comprising: Retrieving the current passing time of the electrolysis module (3) determined last time; Determine the difference between the current passing time of the electrolysis module (3) determined at the current time and the current passing time of the electrolysis module (3) determined at the last time, and record it as the difference between two adjacent current passing times of the electrolysis module (3); and determine whether the difference between two adjacent current passing times of the electrolysis module (3) is greater than or equal to a preset contamination time threshold; If it is determined that the time difference between two adjacent current passages of the electrolysis module (3) is less than a preset contamination time threshold, it is determined that the water receiving tray (1) does not need to be self-cleaned; If it is determined that the time difference between two adjacent current passages through the electrolysis module (3) is greater than or equal to a preset contamination time threshold, it is determined that the water receiving tray (1) needs to be self-cleaned.

5. The air conditioner control method according to any one of claims 1 to 4, characterized in that: Executing a preset self-cleaning program to: combine the current passing time of the electrolysis module (3) and the indoor temperature and humidity of the air conditioner to control the electrolysis module (3) to perform electrolytic sterilization and self-clean the water receiving tray (1), including: Executing a preset condensation mode under a preset self-cleaning program: controlling the drain nozzle (2) of the water receiving tray (1) to be closed, and determining a target condensation time of the air conditioner according to the current passing time of the electrolysis module (3); In the preset condensation mode, the compressor is controlled to continue to operate at the first frequency preset in the cooling mode, and the indoor fan is controlled to continue to operate at the first wind speed preset in the cooling mode; After the target condensation time has been reached, a target electrolysis operation time of the electrolysis module (3) is determined based on the target condensation time, the current flow time of the electrolysis module (3) and the indoor ambient temperature and humidity of the air conditioner, and a target sterilization time after the electrolysis operation of the electrolysis module (3) is completed is determined; Executing a preset sterilization mode: controlling the electrolysis module (3) to perform electrolysis operation according to the target electrolysis operation time to produce active sterilization substances; Execute a preset drying mode: after the electrolysis operation of the electrolysis module (3) is completed and the electrolysis module (3) is maintained powered on for the target sterilization time, determine that the electrolysis sterilization of the electrolysis module (3) is completed, control the air conditioner to turn off the cooling mode and turn on the heating mode, 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, exit the preset self-cleaning program after the drying time is set, and complete the self-cleaning of the water receiving tray (1).

6. The air conditioner control method according to claim 5, characterized in that: Determining a target electrolysis operation time of the electrolysis module (3) according to the target condensation time, the current passing time of the electrolysis module (3) and the indoor ambient temperature and humidity of the air conditioner, and determining a target sterilization time after the electrolysis operation of the electrolysis module (3) is completed, including: Determining the total amount of condensed water generated by the air conditioner in a preset condensation mode according to the indoor ambient temperature and humidity of the air conditioner before and after the target condensation time; Determining the amount of condensed water in the indoor heat exchanger according to the indoor ambient temperature and humidity of the air conditioner before and after the current of the electrolysis module (3) passes through; The difference between the total amount of condensed water generated by the air conditioner in a preset condensation mode and the amount of condensed water hanging on the indoor heat exchanger is determined as the effective amount of condensed water in the water receiving tray (1); According to the correspondence between the set condensed water volume and the set electrolysis time, the set electrolysis time corresponding to the set condensed water volume that is the same as the effective condensed water volume in the water receiving tray (1) in the correspondence is determined as the target electrolysis operation time of the electrolysis module (3); According to the correspondence between the set electrolysis time, the set current passing time and the set sterilization time, the set electrolysis time which is the same as the target electrolysis operation time of the electrolysis module (3) and the set sterilization time which corresponds to the set current passing time corresponding to the current passing time of the electrolysis module (3) in the correspondence are determined as the target sterilization time after the electrolysis operation of the electrolysis module (3) is completed.

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

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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