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

Abstract

The invention discloses an air conditioner control method and device, an air conditioner, a storage medium and a computer program product.The method comprises the steps that after the air conditioner is shut down, the accumulated growth amount of microorganisms in a drainage channel is determined according to the temperature and humidity in the drainage channel of the air conditioner; the accumulated growth amount is used for reflecting the growth accumulation degree of microorganisms in the drainage channel under different temperature and humidity conditions, and when the accumulated growth amount is larger than or equal to a preset threshold value, a sterilization module of the air conditioner is started for sterilization. According to the scheme, it is ensured that the sterilization operation is carried out in the key stage of microorganism growth, the sterilization effect is improved, meanwhile, the invalid starting frequency of the sterilization module is reduced, and unnecessary loss is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air conditioners, and particularly relates to an air conditioner control method and device, an air conditioner, a storage medium and a computer program product. BACKGROUND

[0002] After the air conditioner is operated for refrigeration in summer and the operation is completed, condensate water is often not completely drained from the air conditioner system, especially from the water channel. After the air conditioner is shut down, the internal environment is dark and poorly ventilated, and microorganisms can easily breed in such a humid, dark and poorly ventilated environment, as well as in the water channel of the cooling system. The degerming module in the air conditioner is usually only turned on during the operation of the air conditioner, and cannot deal with the growth of microorganisms in the water channel after the air conditioner is shut down, resulting in the phenomenon of dirt and blockage of the water channel and the drain pipe due to the breeding of microorganisms.

[0003] A related solution is to operate the degerming module for a period of time after the air conditioner is shut down to prevent the breeding of microorganisms in the water channel. However, the degerming module is started immediately after the air conditioner is shut down, and cannot predict the actual growth law of microorganisms in the water channel after the air conditioner is shut down, so it cannot accurately play a role in inhibiting bacteria in the key stage of microbial growth, resulting in an unreasonable degerming time and certain limitations.

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

[0005] The purpose of the present application is to provide an air conditioner control method and device, an air conditioner, a storage medium and a computer program product, to solve the problem of poor degerming effect and frequent opening of the degerming module in the air conditioner due to improper operation time in the related solution, to ensure that the degerming operation is performed in the key stage of microbial growth by judging whether to start the degerming module according to the threshold value of the accumulated growth amount of microorganisms in the drain channel after the air conditioner is shut down, to improve the degerming effect, to reduce the number of invalid starts of the degerming module, to reduce unnecessary losses, and to prolong the service life of the degerming module.

[0006] The present application provides an air conditioner control method, wherein the air conditioner comprises a degerming module and a drain channel for draining condensate water; the method comprises: after the air conditioner is shut down, obtaining the real-time temperature and real-time humidity in the drain channel; determining the accumulated growth amount of microorganisms in the drain channel according to the real-time temperature and real-time humidity; the accumulated growth amount is used to reflect the growth accumulation degree of microorganisms in the drain channel under different temperature and humidity conditions; judging the size of the accumulated growth amount; if the accumulated growth amount is less than a preset threshold value, continue to determine the accumulated growth amount according to the real-time temperature and real-time humidity; if the accumulated growth amount is greater than or equal to the preset threshold value, start the degerming module to sterilize the drain channel.

[0007] In some embodiments, determining the accumulated growth amount of the microorganism in the drainage channel according to the real-time temperature and the real-time humidity comprises: determining a temperature and humidity interval to which the real-time temperature and the real-time humidity belong; determining a corresponding microorganism growth rate from a preset temperature and humidity interval-microorganism growth rate correspondence according to the temperature and humidity interval; obtaining a residence time of the real-time temperature and the real-time humidity in the temperature and humidity interval; calculating a microorganism growth condition parameter in the temperature and humidity interval, the microorganism growth condition parameter being a product of the microorganism growth rate and the residence time; and accumulating the microorganism growth condition parameters of each temperature and humidity interval during the shutdown of the air conditioner to obtain the accumulated growth amount.

[0008] In some embodiments, the drainage channel is provided with a water storage area for storing condensed water, the water storage area is provided with a mounting groove, and the sterilization module is arranged in the mounting groove; the sterilization module can electrolyze water in the water storage area to sterilize the drainage channel.

[0009] In some embodiments, the method further comprises: in the case that the accumulated growth amount is greater than or equal to a preset threshold, starting the air conditioner and running a cooling mode or a dehumidification mode; and setting a wind level of the air conditioner to a preset ultra-quiet level and adjusting an air deflector to a straight-blowing-preventing position.

[0010] In some embodiments, the method further comprises: before starting the sterilization module, obtaining a water level of the water storage area; determining the size of the water level; if the water level is greater than a preset water level, starting the sterilization module; and if the water level is less than or equal to the preset water level, not starting the sterilization module.

[0011] In some embodiments, the method further comprises: after the sterilization module is turned off after running for a preset first time length, controlling the air conditioner to continue running the cooling mode or the dehumidification mode for a preset second time length.

[0012] According to the method, the application provides a control device for an air conditioner, the air conditioner comprising a sterilization module and a drain channel for draining condensed water. The device comprises: an acquisition unit configured to acquire real-time temperature and real-time humidity in the drain channel after the air conditioner is powered off; a control unit configured to determine an accumulated growth amount of microorganisms in the drain channel according to the real-time temperature and the real-time humidity; the accumulated growth amount is used to reflect the growth accumulation degree of the microorganisms in the drain channel under different temperature and humidity conditions; the control unit is further configured to determine the size of the accumulated growth amount; if the accumulated growth amount is less than a preset threshold, the accumulated growth amount is continuously determined according to the real-time temperature and the real-time humidity; if the accumulated growth amount is greater than or equal to the preset threshold, the sterilization module is started to sterilize the drain channel.

[0013] In some embodiments, the control unit determines the accumulated growth amount of microorganisms in the drain channel according to the real-time temperature and the real-time humidity, comprising: determining a temperature and humidity interval to which the real-time temperature and the real-time humidity belong; determining a corresponding microorganism growth rate from a preset temperature and humidity interval-microorganism growth rate correspondence according to the temperature and humidity interval; acquiring a residence time of the real-time temperature and the real-time humidity in the temperature and humidity interval; calculating a microorganism growth condition parameter in the temperature and humidity interval, the microorganism growth condition parameter being a product of the microorganism growth rate and the residence time; and accumulating the microorganism growth condition parameters of each temperature and humidity interval during the power-off period of the air conditioner to obtain the accumulated growth amount.

[0014] In some embodiments, the drain channel is provided with a water storage area for storing condensed water, the water storage area is provided with a mounting groove, and the sterilization module is arranged in the mounting groove; the sterilization module can electrolyze water in the water storage area to sterilize the drain channel.

[0015] In some embodiments, the control unit is further configured to start the air conditioner and run a cooling mode or a dehumidification mode when the accumulated growth amount is greater than or equal to the preset threshold; and set the air conditioner to a preset ultra-quiet gear and adjust the air deflector to a straight-blowing-preventing position.

[0016] In some embodiments, the control unit is further configured to acquire a water level of the water storage area before starting the sterilization module; determine the size of the water level; if the water level is greater than a preset water level, start the sterilization module; and if the water level is less than or equal to the preset water level, do not start the sterilization module.

[0017] In some embodiments, the control unit is further configured to control the air conditioner to continue running in a cooling mode or a dehumidifying mode for a preset second time length after the sterilization module is turned off after running for a preset first time length.

[0018] In another aspect, the present application provides an air conditioner, which comprises the control device of the air conditioner.

[0019] In another aspect, the present application provides a storage medium, which comprises a stored program, wherein the device where the storage medium is located performs the control method of the air conditioner when the program is run.

[0020] In another aspect, the present application provides a computer program product, which comprises a computer program, and the computer program product realizes the steps of the control method of the air conditioner when the computer program product is processed.

[0021] According to the scheme of the present application, the accumulated growth amount of microorganisms in the drainage channel of the air conditioner is determined according to the temperature and humidity in the drainage channel after the air conditioner is stopped, and the accumulated growth amount is used to reflect the growth accumulation degree of the microorganisms in the drainage channel under different temperature and humidity conditions. When the accumulated growth amount is greater than or equal to a preset threshold, the sterilization module of the air conditioner is started to perform sterilization. Thus, the sterilization module is started according to the threshold of the accumulated growth amount of the microorganisms in the drainage channel after the air conditioner is stopped, so that the sterilization operation is performed in the key stage of the growth of the microorganisms, the sterilization effect is improved, the number of invalid starts of the sterilization module is reduced, unnecessary loss is reduced, and the service life of the sterilization module is prolonged.

[0022] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be learned through practice of the present application.

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

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

[0025] Figure 2 Structural diagram of an embodiment of the control device of the air conditioner of the present application;

[0026] Figure 3 Structural diagram of the air conditioner of the present application;

[0027] Figure 4 Flowchart of the control method of the sterilization of the air conditioner of the present application;

[0028] Figure 5 corresponding relationship between temperature and humidity interval and microbial growth rate.

[0029] In combination with the drawings, the following are the reference signs in the embodiments of the present application:

[0030] 1-drainage channel; 2-water storage area; 3-mounting groove; 102-acquisition unit; 104-control unit. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] According to an embodiment of the present application, a control method of an air conditioner is provided, the air conditioner including a sterilization module and a drainage channel for discharging condensed water, the sterilization module including an electrolytic water module, an ultraviolet sterilization module, an ozone generation module, etc. The drainage channel is a path structure for discharging condensed water in the air conditioner, which is more prone to breed microorganisms. As shown in the flowchart of an embodiment of the method of the present application. The control method of the air conditioner can include steps S110 to S130. Figure 1

[0033] At step S110, after the air conditioner is stopped, the real-time temperature and real-time humidity in the drainage channel are acquired.

[0034] The growth of microorganisms (such as bacteria, mold) depends on the temperature and humidity conditions (high temperature and high humidity environment is easy to accelerate reproduction), and after the air conditioner is stopped, the residual condensed water in the drainage channel forms a closed and humid environment, at which time microorganisms are more prone to breed. The prior art sterilizes when the air conditioner is running, which cannot cover the breeding risk after the air conditioner is stopped, so it is necessary to monitor the temperature and humidity after the air conditioner is stopped to determine whether to sterilize the drainage channel.

[0035] The moment when the air conditioner is stopped is taken as the starting point of waterway temperature and humidity monitoring, the waterway temperature and humidity after the air conditioner is stopped is monitored in real time, and the temperature and humidity is matched to a specific interval to obtain the real-time growth parameter of the microorganisms in the waterway; at the same time, the time length of the real-time temperature and humidity in each temperature and humidity interval is recorded, and the growth of microorganisms is obtained according to the time length and the growth parameter, so as to combine with the actual operation of the air conditioner to control the opening of the sterilization module.

[0036] ​At step S120, the accumulated growth amount of the microorganism in the drainage channel is determined according to the real-time temperature and the real-time humidity; the accumulated growth amount is used to reflect the growth accumulation degree of the microorganism in the drainage channel under different temperature and humidity conditions.

[0037] The temperature and humidity at a single time point cannot reflect the dynamic growth process of the microorganism, and the cumulative calculation can more comprehensively evaluate the pollution risk and avoid misjudgment caused by short-time temperature and humidity fluctuations. Different temperature and humidity combinations correspond to different growth rates of the microorganism, and the cumulative calculation can accurately reflect the total growth degree of the microorganism.

[0038] In some embodiments, in step S120, the specific process of determining the accumulated growth amount of the microorganism in the drainage channel according to the real-time temperature and the real-time humidity includes steps S210 to S250.

[0039] Step S210, determining the temperature and humidity interval to which the real-time temperature and the real-time humidity belong.

[0040] Step S220, determining the corresponding microorganism growth rate from the preset temperature and humidity interval and microorganism growth rate correspondence relationship according to the temperature and humidity interval.

[0041] The temperature and humidity interval is a preset combination of temperature and humidity range according to the temperature and humidity sensitivity of microorganism growth, and different intervals correspond to different growth activities of the microorganism. The microorganism growth rate reflects the growth and reproduction degree of the microorganism per unit time, which is determined by the temperature and humidity interval. The correspondence relationship between the temperature and humidity interval and the growth rate is based on laboratory data or industry standards of common microorganisms in the drainage channel, and reflects the activity of the microorganism under different environments. Taking the most common microorganism species in the air conditioner, Cladosporium, as an example, the correspondence relationship between its temperature and humidity interval and the growth rate in its growth cycle is as shown in Table 1, and the corresponding growth rate can be found from the table according to the real-time temperature and humidity. For example, when the temperature is 28℃ and the humidity is 75%, the corresponding growth rate is 0.0449. Figure 5

[0042] In some embodiments, the microorganism growth rate can also be calculated according to a preset formula, and the formula is: u=a 2 (T i -T min ) 2 (φ i -φ min )。u is the growth rate, the unit is cm / h; a is the coefficient, the unit is cm / (h·℃); T min is the minimum temperature value when the growth rate is zero; φ min is the relative humidity value when the growth rate is zero; T i is the real-time temperature; φ is the real-time humidity. ​

[0043] Step S230, obtaining the residence time of the real-time temperature and the real-time humidity in the temperature and humidity interval.

[0044] Microbial growth is a time-accumulative process. The total accumulation of microbial growth cannot be reflected by the temperature and humidity interval alone. The time dimension needs to be combined to accurately assess the breeding degree. Under the same temperature and humidity interval, the longer the residence time, the greater the growth.

[0045] Step S240, calculating the microbial growth parameter in the temperature and humidity interval, the microbial growth parameter being the product of the microbial growth rate and the residence time.

[0046] The growth amount is positively correlated with the growth rate and time. The product form can quantify the microbial accumulation amount in a single interval. For example, the residence time is 4h in the temperature range of 25-30℃ and the humidity range of 60%-80%, then the growth parameter = 0.0449*4.

[0047] Step S250, accumulating the microbial growth parameters of each temperature and humidity interval during the shutdown period of the air conditioner to obtain the cumulative growth amount.

[0048] The temperature and humidity during the shutdown period may change multiple times (such as from low temperature and high humidity to high temperature and medium humidity). The growth amounts in different intervals need to be superimposed to reflect the total pollution degree. For example, the temperature in the air conditioner rises from 10℃ to 28℃ and the waterway humidity drops from 95% to 80% in 8h shutdown state. Among them, the residence time is 1h in the temperature range of 10-20℃ and the humidity range of ≥90% (corresponding to the microbial growth rate of 0.0236), 1h in the temperature range of 20-25℃ and the humidity range of ≥90% (corresponding to the microbial growth rate of 0.0379), 1h in the temperature range of 20-25℃ and the humidity range of 80%-90% (corresponding to the microbial growth rate of 0.0355), and 6h in the temperature range of 25-28℃ and the humidity range of 80%-90% (corresponding to the microbial growth rate of 0.0484). Then the cumulative growth amount = 0.0263*1+0.0379*1+0.0355*1+0.0484*6=0.3901. Thus, by dividing the real-time temperature and humidity into specific intervals, matching the corresponding microbial growth rate, combining the residence time to calculate the growth parameter in a single interval and accumulating, the precise quantification of the microbial accumulation growth amount in the drainage channel is realized. It can not only dynamically adapt to the fluctuation of temperature and humidity during the shutdown period, improve the accuracy of pollution degree assessment, but also avoid frequent start of the sterilization module due to judgment error.

[0049] At step S130, it is judged whether the accumulated growth amount is greater than or equal to a preset threshold value; if the accumulated growth amount is less than the preset threshold value, the accumulated growth amount is continuously determined according to the real-time temperature and the real-time humidity; if the accumulated growth amount is greater than or equal to the preset threshold value, the sterilization module is started to sterilize the drainage channel.

[0050] When the accumulated growth amount is greater than or equal to the preset threshold value, it indicates that the number of microorganisms has reached a level that needs to be intervened, at which time starting the sterilization can effectively inhibit the breeding; if the accumulated growth amount is less than the preset threshold value, the monitoring is continuously performed to reduce unnecessary sterilization operation. Thus, the sterilization is started based on the actual growth rule of microorganisms, the sterilization effectiveness is improved, the drainage channel is prevented from being dirty and blocked due to the breeding of microorganisms, and the drainage of condensed water is maintained smooth; meanwhile, unnecessary sterilization operation is reduced, the loss of the sterilization module is reduced, and the service life thereof is prolonged.

[0051] In some embodiments, a water storage area for storing condensed water is arranged in the drainage channel, and a mounting groove is arranged in the water storage area, and the sterilization module is arranged in the mounting groove; the sterilization module can electrolyze water in the water storage area to sterilize the drainage channel.

[0052] The sterilization module is specifically an electrolytic water sterilization module, which generates hydrogen peroxide with strong oxidizing property by electrolyzing the condensed water in the water storage area, and the hydrogen peroxide can kill microorganisms in the drainage channel along with the condensed water. Compared with the traditional ultraviolet or chemical sterilization, the electrolytic water sterilization does not need to add additional reagents, and the hydrogen peroxide can cover the entire channel along with the water flow, and the sterilization is more thorough.

[0053] After the air conditioner is stopped, the condensed water in the drainage channel cannot be completely drained due to gravity and channel slope, and the water storage area can actively retain part of the condensed water to provide necessary water source for electrolytic sterilization. The mounting groove fixes the sterilization module at a specific position (such as below the liquid level) of the water storage area, so as to ensure that the electrodes are in continuous contact with the condensed water and the electrolytic reaction is stably performed.

[0054] The condensed water generated when the air conditioner is running flows through the drainage channel, and part of the condensed water is retained in the water storage area after the air conditioner is stopped, forming a water medium required for electrolysis. When the accumulated growth amount reaches the preset threshold value, the sterilization module in the mounting groove is powered on, the electrodes and the condensed water in the water storage area undergo electrolytic reaction to generate hydrogen peroxide. The hydrogen peroxide naturally flows along with the condensed water in the water storage area, flows through the upper waterway, the lower waterway and the drain of the drainage channel, and kills microorganisms in the entire channel.

[0055] As Figure 3As shown, the sterilization module is installed in the installation groove 3 of the water storage area 2 on the lower side of the air conditioner bottom shell. The drain channel 1 includes an upper water channel and a lower water channel, the lower water channel has a smaller slope than the upper water channel, and the air conditioner condensate easily flows from the upper water channel with a larger slope into the lower water channel and the drain outlet, and the lower water channel is prone to accumulate condensate. The right side of the lower water channel is provided with a water storage area 2, and the sterilization module is installed in the water storage area, and the hydrogen peroxide generated by the sterilization module can flow through the entire lower water channel under the action of the condensate flow, thereby comprehensively sterilizing the lower water channel.

[0056] In some embodiments, the method further comprises: if the accumulated growth amount is greater than or equal to a preset threshold, starting the air conditioner and running in a cooling mode or a dehumidifying mode; setting the air damper of the air conditioner to a preset ultra-quiet damper, and adjusting the air deflector to a position preventing direct blowing.

[0057] The condensate in the drain channel after shutdown may be less, and it is difficult to transport the sterilization substance to the deep part of the pipeline only by natural flow. Both the cooling mode and the dehumidifying mode can generate new condensate, supplement the water in the water storage area, and enhance the water flow in the drain channel, so that the hydrogen peroxide generated by the sterilization module fully diffuses to the entire channel with the water flow. The air damper is set to the ultra-quiet damper to maximize reduce the noise of the fan and avoid affecting the user's rest; the air deflector is adjusted to the position preventing direct blowing to avoid the direct contact of the air outlet with the user and reduce unnecessary body discomfort. Specifically, when the accumulated growth amount of microorganisms in the drain channel is greater than or equal to a preset threshold, the air conditioner control system issues an instruction to start the auxiliary sterilization running mode, the air conditioner starts the cooling mode or the dehumidifying mode (automatically selected according to the environmental humidity, preferentially dehumidifying in a high-humidity environment and preferentially cooling in a low-humidity environment), generates new condensate and flows into the drain channel; simultaneously, the fan damper is switched to the ultra-quiet damper to reduce the running noise; the air deflector is rotated to a preset anti-direct blowing angle to avoid direct blowing of the air outlet to the human body. Thus, by starting the cooling or dehumidifying mode to supplement the condensate when the accumulated growth amount meets the standard to enhance the flowability of the sterilization substance, and cooperating with the ultra-quiet damper and the air deflector anti-direct blowing design, the overall sterilization effect of the drain channel is improved, the running mode with low noise and no discomfort is avoided to interfere with the user, and the optimization balance of the sterilization function and the user experience is realized while considering the energy consumption control and use safety.

[0058] In some embodiments, the method further comprises: before starting the sterilization module, acquiring the water level of the water storage area; determining the size of the water level; if the water level is greater than a preset water level, starting the sterilization module; if the water level is less than or equal to the preset water level, not starting the sterilization module.

[0059] The bactericidal module needs to be immersed in water to generate electrolysis reaction. If the water level is too low, the electrode will be exposed and unable to generate hydrogen peroxide and other bactericidal substances. If the module is directly turned on without detecting the water level, dry burning or insufficient generation of bactericidal substances may occur, reducing the bactericidal effectiveness or even damaging the module. Specifically, before turning on the bactericidal module, the real-time water level of the water storage area is detected by the water level sensor, and the real-time water level is compared with the preset water level (such as 2 mm). If the real-time water level is greater than 2 mm, it is determined that the electrolysis condition is met, the bactericidal module is started, and the electrode contacts the condensed water to generate bactericidal substances. If the real-time water level is less than or equal to 2 mm, it is determined that the electrolysis condition is not met, the bactericidal module is not turned on, and the water level continues to be monitored or the air conditioner is waited to run in the mode to supplement the condensed water. Thus, by detecting the water level of the water storage area before turning on the bactericidal module and comparing it with the preset threshold, the module is started only when the water level is sufficient, which not only ensures the effectiveness of the electrolysis reaction to guarantee the bactericidal effect, but also avoids invalid start and hardware damage under low water level, thereby improving the reliability and economy of system operation.

[0060] In some embodiments, the water level of the water storage area can also be estimated according to the air conditioner downtime and the environmental humidity, such as the water level being greater than or equal to 3 mm after the air conditioner is stopped for 1 hour in a high humidity environment.

[0061] In some embodiments, the method further comprises: after the bactericidal module is turned off for a preset first time length, controlling the air conditioner to continue running in the refrigeration mode or the dehumidification mode for a preset second time length.

[0062] After the bactericidal module is turned off, bactericidal substances remain in the drainage channel. If the air conditioner is stopped immediately after the bactericidal module is turned off, the bactericidal substances may be retained near the water storage area and cannot be fully diffused to the entire channel, resulting in incomplete sterilization in the local area. Therefore, continuing to run in the refrigeration or dehumidification mode after the bactericidal module is turned off can generate new condensed water, which pushes the remaining bactericidal substances to the deep part of the pipe and covers the areas outside the direct action range of the module. The preset first time length is the running time of the bactericidal module, and the value range is 20 min to 90 min. The preset second time length is the time for which the air conditioner continues to run in the refrigeration or dehumidification mode after the bactericidal module is turned off, which is used to push the bactericidal substances to fully diffuse in the drainage channel, and the value range is 10 min to 20 min. Thus, by setting the first time length of the bactericidal module running to ensure sufficient generation of bactericidal substances, and then continuing to run the air conditioner mode for the second time length to push the substances to diffuse, the effective concentration of the bactericidal substances is ensured, and the sterilization range is expanded, achieving a balance between complete sterilization and energy optimization, and improving the long-term cleanliness of the drainage channel.

[0063] Figure 4 The flowchart of the control method of the air conditioner sterilization of the present application is shown in FIG. 1. Figure 4 The method comprises:

[0064] Step 1, determine whether the air conditioner is in the shutdown state, if the air conditioner has been stopped, the real-time temperature T in the drainage channel after shutdown is obtained through the temperature bag and humidity sensor i and real-time humidity φ i , according to the interval to determine the corresponding microbial growth rate U i .

[0065] Step 2, get the residence time t i in a certain interval, according to the residence time t i in each interval and the growth rate U corresponding to the interval i Calculate the microbial growth parameter U, U = ∑U i .

[0066] Step 3, determine whether U is greater than the limit value A. If U < A, execute step 1 and continue to monitor the microbial growth in the shutdown state; if U ≥ A, it means that the microbial growth has exceeded the preset growth, that is, the microbial contamination in the water channel has exceeded, and the water channel sterilization function needs to be started for machine cleaning. T i , φ i , t i , U is cleared.

[0067] Step 4, in order to make the condensate water in the water channel as a reactant in the sterilization process, the air conditioner is started in cooling or dehumidification mode, in order to minimize the impact on indoor temperature, the air conditioner is adjusted to super silent position, and the air deflector is adjusted to prevent direct blowing position.

[0068] Step 5, monitor the water level in the water storage area of the water channel, when the water level is greater than the preset height S, there is sufficient condensate water as electrolysis reactant, start the sterilization module and run for a preset time B. After the sterilization module runs to the preset time and stops running, the air conditioner cooling or dehumidification mode can continue to run B1 time, so that the sterilization material fully flows into the water channel, avoiding excessive accumulation in the water storage area causing material corrosion.

[0069] The technical scheme of the embodiment is adopted, after the air conditioner is stopped, the accumulated growth of the microorganisms in the drainage channel of the air conditioner is determined according to the temperature and humidity in the drainage channel, the accumulated growth is used to reflect the growth accumulation degree of the microorganisms in the drainage channel under different temperature and humidity conditions, when the accumulated growth is greater than or equal to the preset threshold, the sterilization module of the air conditioner is started to sterilize. Therefore, by judging whether to start the sterilization module according to the threshold of the accumulated growth of the microorganisms in the drainage channel after the air conditioner is stopped, the sterilization operation is ensured to be carried out in the key stage of microbial growth, the sterilization effect is improved, the invalid start number of the sterilization module is reduced, unnecessary loss is reduced, and the service life of the sterilization module is prolonged.

[0070] According to an embodiment of the present invention, an air conditioner control device corresponding to the air conditioner control method is also provided. The air conditioner includes a sterilization module and a drainage channel for draining condensed water. The sterilization module includes an electrolytic water module, an ultraviolet sterilization module, an ozone generation module, etc. The drainage channel is a path structure in the air conditioner for draining condensed water, which is more likely to breed microorganisms. Figure 2 FIG2 is a schematic structural diagram of an embodiment of the device of the present invention. The air conditioner control device may include: an acquisition unit 102 and a control unit 104.

[0071] The acquisition unit 102 is configured to acquire the real-time temperature and real-time humidity in the drainage channel after the air conditioner is shut down. The specific functions and processing of the acquisition unit 102 are shown in step S110.

[0072] The growth of microorganisms (such as bacteria and mold) depends on temperature and humidity conditions (high temperature and high humidity tend to accelerate their growth). After the air conditioner is shut down, condensed water remains in the drainage channel, creating a closed and humid environment where microorganisms are more likely to grow. Existing technologies often sterilize the air conditioner while it is running, but this does not address the risk of growth after the air conditioner is shut down. Therefore, targeted monitoring of temperature and humidity after shutdown is necessary to determine whether the drainage channel needs to be sterilized.

[0073] Taking the air conditioner shutdown time as the starting point for water channel temperature and humidity monitoring, the water channel temperature and humidity are monitored in real time after the air conditioner is shut down, and its temperature and humidity are matched to a specific range to obtain the real-time growth parameters of water channel microorganisms; at the same time, the length of time in each temperature and humidity range is recorded, and the microbial growth status is obtained based on the length of time and growth parameters, which is then combined with the actual operation of the air conditioner to control the opening of the sterilization module.

[0074] Control unit 104 is configured to determine a cumulative growth amount of microorganisms in the drainage channel based on the real-time temperature and humidity. The cumulative growth amount reflects the cumulative degree of microbial growth in the drainage channel under different temperature and humidity conditions. The specific functions and processing of control unit 104 are described in step S120.

[0075] Temperature and humidity at a single point in time cannot fully reflect the dynamic growth process of microorganisms. Cumulative calculations provide a more comprehensive assessment of contamination risk and avoid misjudgments caused by short-term temperature and humidity fluctuations. Different temperature and humidity combinations correspond to different microbial growth rates, and cumulative calculations accurately reflect the overall extent of microbial growth.

[0076] In some embodiments, the control unit 104 determines the cumulative growth of microorganisms in the drainage channel according to the real-time temperature and the real-time humidity, including:

[0077] The control unit 104 is specifically further configured to determine a temperature and humidity interval to which the real-time temperature and the real-time humidity belong. The specific functions and processes of the control unit 104 are described with reference to step S210.

[0078] The control unit 104 is specifically further configured to determine a corresponding microbial growth rate according to the temperature and humidity interval from a preset temperature and humidity interval-microbial growth rate correspondence. The specific functions and processes of the control unit 104 are described with reference to step S220.

[0079] The temperature and humidity interval is a preset combination of temperature and humidity range according to the temperature and humidity sensitivity of microbial growth, and different intervals correspond to different growth activities of microorganisms. The microbial growth rate reflects the degree of growth and reproduction of microorganisms per unit time, which is determined by the temperature and humidity interval. The correspondence between the temperature and humidity interval and the growth rate is based on laboratory data or industry standards of common microorganisms in the drainage channel, and reflects the activity of microorganisms in different environments. Taking the most common microbial species in the air conditioner, branch bacteria, as an example, the correspondence between its temperature and humidity interval and microbial growth rate during its growth cycle is shown in Table 1, and the corresponding growth rate can be found from the table according to the real-time temperature and humidity. For example, when the temperature is 28°C and the humidity is 75%, the corresponding growth rate is 0.0449. Figure 5

[0080] In some embodiments, the microbial growth rate can also be calculated according to a preset formula: u = a 2 (T i -T min ) 2 (φ i -φ min )。u is the growth rate, with a unit of cm / h; a is a coefficient, with a unit of cm / (h·℃); T min is the minimum temperature value when the growth rate is zero; φ min is the relative humidity value when the growth rate is zero; T i is the real-time temperature; and φ is the real-time humidity.

[0081] The control unit 104 is specifically further configured to obtain a residence time of the real-time temperature and the real-time humidity in the temperature and humidity interval. The specific functions and processes of the control unit 104 are described with reference to step S230.

[0082] Microbial growth is a time-accumulative process, and only the temperature and humidity interval cannot reflect the total accumulation of microbial growth. It is necessary to combine the time dimension to accurately evaluate the breeding degree. Under the same temperature and humidity interval, the longer the residence time, the greater the growth amount.

[0083] ​The control unit 104 is further configured to calculate a microorganism growth condition parameter in the temperature and humidity interval, the microorganism growth condition parameter being the product of the microorganism growth rate and the residence time. The specific functions and processes of the control unit 104 are described in step S240.

[0084] The growth amount is positively correlated with the growth rate and time, and the product form can quantify the microorganism accumulation amount in a single interval. For example, when the residence time is 4h in the temperature range of 25-30℃ and the humidity range of 60%-80%, the growth condition parameter = 0.0449*4.

[0085] The control unit 104 is further configured to accumulate the microorganism growth condition parameters of each temperature and humidity interval during the shutdown period of the air conditioner to obtain the cumulative growth amount. The specific functions and processes of the control unit 104 are described in step S250.

[0086] The temperature and humidity during the shutdown period may change multiple times (for example, from low temperature and high humidity to high temperature and medium humidity), and the growth amounts in different intervals need to be superimposed to reflect the total pollution degree. For example, when the air conditioner is in a shutdown state for 8h, the temperature in the machine is raised from 10℃ to 28℃, and the humidity of the waterway is reduced from 95% to 80%, among which the residence time is 1h in the temperature range of 10-20℃ and the humidity range of ≥90% (corresponding to the microorganism growth rate of 0.0236), 1h in the temperature range of 20-25℃ and the humidity range of ≥90% (corresponding to the microorganism growth rate of 0.0379), 1h in the temperature range of 20-25℃ and the humidity range of 80%-90% (corresponding to the microorganism growth rate of 0.0355), and 6h in the temperature range of 25-28℃ and the humidity range of 80%-90% (corresponding to the microorganism growth rate of 0.0484), then the cumulative growth amount = 0.0263*1+0.0379*1+0.0355*1+0.0484*6=0.3901. Thus, by dividing the real-time temperature and humidity into specific intervals, matching the corresponding microorganism growth rate, and calculating the growth parameter in a single interval combined with the residence time, the precise quantification of the microorganism cumulative growth amount in the drainage channel is realized, which can dynamically adapt to the fluctuation of the temperature and humidity during the shutdown period, improve the accuracy of the pollution degree evaluation, and avoid frequent start of the sterilization module due to judgment errors.

[0087] The control unit 104 is further configured to judge the size of the cumulative growth amount; if the cumulative growth amount is less than a preset threshold, continue to determine the cumulative growth amount according to the real-time temperature and the real-time humidity; if the cumulative growth amount is greater than or equal to the preset threshold, start the sterilization module to sterilize the drainage channel. The specific functions and processes of the control unit 104 are described in step S130.

[0088] When the cumulative growth exceeds a preset threshold, indicating that the microbial population has reached a level requiring intervention, sterilization is initiated to effectively suppress growth. If the threshold is not reached, monitoring continues to reduce unnecessary sterilization operations. This enables sterilization based on the actual growth patterns of microorganisms, improving sterilization effectiveness, preventing drainage channels from becoming clogged due to microbial growth, and maintaining unobstructed condensate drainage. This also reduces unnecessary sterilization operations, minimizing wear and tear on the sterilization module and extending its service life.

[0089] In some embodiments, a water storage area for storing condensed water is provided in the drainage channel, an installation groove is provided in the water storage area, and the sterilization module is placed in the installation groove; the sterilization module can electrolyze the water in the water storage area to sterilize the drainage channel.

[0090] The sterilization module, specifically an electrolyzed water sterilization module, electrolyzes condensed water in the water storage area to produce highly oxidizing hydrogen peroxide. This substance flows through the drainage channel with the condensed water, killing microorganisms within the pipes. Compared to traditional ultraviolet or chemical sterilization, electrolyzed water sterilization requires no additional agents, and the hydrogen peroxide flows throughout the channel, providing a more thorough sterilization process.

[0091] After the air conditioner is shut down, condensed water in the drainage channel cannot be completely drained due to gravity and the channel slope. The water storage area can actively retain some condensed water, providing the necessary water source for electrolytic sterilization. The mounting slot fixes the sterilization module in a specific position in the water storage area (e.g., below the liquid level), ensuring continuous contact between the electrodes and the condensed water, ensuring a stable electrolysis reaction.

[0092] Condensate generated during air conditioning operation flows through the drainage channel. After shutdown, some condensate remains in the water storage area, forming the aqueous medium required for electrolysis. When the cumulative growth reaches a preset threshold, the sterilization module in the installation tank is energized, and the electrodes react with the condensate in the water storage area to produce hydrogen peroxide. The hydrogen peroxide flows naturally with the condensate in the water storage area, flowing through the drainage channel's water supply, sewer, and outlet, killing microorganisms throughout the entire channel.

[0093] like Figure 3 As shown, the sterilization module is installed in mounting groove 3 of the water channel storage area 2 on the underside of the air conditioner bottom casing. Drain channel 1 includes an upper water channel and a lower water channel. The lower water channel has a lower slope than the upper water channel. Air conditioning condensation easily flows from the steeper upper water channel into the sewer and the drain outlet, where condensation easily accumulates. A water storage area 2 is located to the right of the sewer, and the sterilization module is installed in this water storage area. The hydrogen peroxide produced by the sterilization module is then driven by the condensation water flow and flows through the entire sewer channel, thus completely sterilizing the sewer.

[0094] In some embodiments, the control unit 104 is specifically further configured to: in the case that the accumulated growth amount is greater than or equal to a preset threshold, start the air conditioner and run a cooling mode or a dehumidifying mode; set the air volume of the air conditioner to a preset ultra-quiet air volume, and adjust the air deflector to a position preventing direct blowing.

[0095] After the air conditioner is stopped, the condensate water in the drainage channel can be less, and it is difficult to transport the sterilization substance to the deep part of the pipeline only by natural flow. Both the cooling mode and the dehumidifying mode can produce new condensate water, supplement the water amount in the water storage area, and enhance the water flow in the drainage channel, so that the hydrogen peroxide produced by the sterilization module is fully diffused to the entire channel with the water flow. By setting the air volume to the ultra-quiet air volume, the noise of the fan is reduced to the maximum, so as to avoid affecting the user's rest. By adjusting the air deflector to the position preventing direct blowing, the outflow directly contacting the user is avoided, and unnecessary body discomfort is reduced. Specifically, when the accumulated growth amount of microorganisms in the drainage channel is greater than or equal to a preset threshold, the air conditioner control system issues an instruction to start the operation mode of auxiliary sterilization, the air conditioner starts the cooling mode or the dehumidifying mode (automatically selected according to the environmental humidity, preferentially dehumidifying in a high-humidity environment and preferentially cooling in a low-humidity environment), new condensate water is produced and flows into the drainage channel; simultaneously, the air volume of the fan is switched to the ultra-quiet air volume to reduce the running noise; the air deflector is rotated to a preset anti-direct blowing angle to avoid the outflow directly blowing the human body. Thus, by starting the cooling or dehumidifying mode to supplement the condensate water to enhance the flowability of the sterilization substance when the accumulated growth amount meets the standard, and by cooperating with the ultra-quiet air volume and the anti-direct blowing design of the air deflector, the sterilization effect of the entire drainage channel is improved, the running mode with low noise and no discomfort is avoided to interfere with the user, the energy consumption control and the use safety are considered, and the optimization balance between the sterilization function and the user experience is realized.

[0096] In some embodiments, the control unit 104 is specifically further configured to: before starting the sterilization module, acquire the water level of the water storage area; determine the size of the water level; if the water level is greater than a preset water level, start the sterilization module; if the water level is less than or equal to the preset water level, do not start the sterilization module.

[0097] The bactericidal module needs to be immersed in water to generate electrolysis reaction. If the water level is too low, the electrode will be exposed and unable to generate hydrogen peroxide and other bactericidal substances. If the module is directly turned on without detecting the water level, dry burning or insufficient generation of bactericidal substances may occur, reducing the bactericidal effectiveness or even damaging the module. Specifically, before turning on the bactericidal module, the real-time water level of the water storage area is detected by the water level sensor, and the real-time water level is compared with the preset water level (such as 2 mm). If the real-time water level is greater than 2 mm, it is determined that the electrolysis condition is met, the bactericidal module is started, and the electrode contacts the condensed water to generate bactericidal substances. If the real-time water level is less than or equal to 2 mm, it is determined that the electrolysis condition is not met, the bactericidal module is not turned on, and the water level continues to be monitored or the air conditioner is waited to run in the mode to supplement the condensed water. Thus, by detecting the water level of the water storage area before turning on the bactericidal module and comparing it with the preset threshold, the module is started only when the water level is sufficient, which not only ensures the effectiveness of the electrolysis reaction to guarantee the bactericidal effect, but also avoids invalid start and hardware damage under low water level, thereby improving the reliability and economy of the system operation.

[0098] In some embodiments, the water level of the water storage area can also be estimated according to the air conditioner downtime and the environmental humidity, such as the water level being greater than or equal to 3 mm after the air conditioner is stopped for 1 hour in a high humidity environment.

[0099] In some embodiments, the control unit 104 is further configured to, after the bactericidal module is turned off for a preset first time length, control the air conditioner to continue running in the refrigeration mode or the dehumidification mode for a preset second time length.

[0100] After the bactericidal module is turned off, bactericidal substances remain in the drainage channel. If the air conditioner is stopped immediately after the bactericidal module is turned off, the bactericidal substances may be retained near the water storage area and cannot be fully diffused to the entire channel, resulting in incomplete local sterilization. Therefore, continuing to run in the refrigeration or dehumidification mode after the bactericidal module is turned off can generate new condensed water, which pushes the remaining bactericidal substances to the deep part of the pipe and covers the areas outside the direct action range of the module. The preset first time length is the running time of the bactericidal module, and the value range is 20 min to 90 min. The preset second time length is the time for which the air conditioner continues to run in the refrigeration or dehumidification mode after the bactericidal module is turned off, which is used to push the bactericidal substances to fully diffuse in the drainage channel. The value range is 10 min to 20 min. Thus, by setting the first time length of the bactericidal module running to ensure sufficient generation of bactericidal substances, and then continuing to run the air conditioner mode for the second time length to push the substances to diffuse, the effective concentration of the bactericidal substances is ensured, and the sterilization range is expanded, achieving a balance between complete sterilization and energy optimization, and improving the long-term cleanliness of the drainage channel.

[0101] Figure 4 The flowchart of the control method of the air conditioner sterilization of the present application is shown in FIG. 1. Figure 4 The method comprises the following steps:

[0102] Step 1, judge whether the air conditioner is in the stop state, if the air conditioner has stopped, the real-time temperature T in the drainage channel after stopping is obtained through the temperature bag and humidity sensor i and real-time humidity φ i , according to and the corresponding microbial growth rate U is determined i .

[0103] Step 2, the residence time t i in a certain interval is obtained i , according to the residence time t i and the growth rate U corresponding to the interval, the microbial growth parameter U is calculated, U = ∑U i .

[0104] Step 3, judge whether U is greater than the limit value A. If U < A, step 1 is executed, and the microbial growth monitoring in the stop state is continued; if U ≥ A, it is indicated that the microbial growth has exceeded the preset growth, that is, the microbial contamination in the water channel has exceeded, and the water channel sterilization function needs to be started to clean the machine. T i , φ i , t i , U are cleared.

[0105] Step 4, in order to make the condensate water in the water channel as the reactant of the sterilization module in the sterilization process, the air conditioner is started in the refrigeration or dehumidification mode, in order to minimize the influence on the indoor temperature, the air conditioner air damper is adjusted to the super silent position, and the air deflector is adjusted to the anti-direct blowing position.

[0106] Step 5, the water level in the water storage area of the water channel is monitored, when the water level is greater than the preset height S, there is sufficient condensate water as the electrolysis reactant at this time, the sterilization module is started and runs for a preset time B. After the sterilization module runs to the preset time and stops running, the air conditioner refrigeration or dehumidification mode can continue to run B1 time, so that the sterilization material fully flows into the water channel, and material corrosion caused by excessive accumulation in the water storage area is avoided.

[0107] Since the processing and functions realized by the device of the embodiment are basically corresponding to the embodiments, principles and examples of the foregoing method, the description of the embodiment is not described in detail, and the related description in the foregoing embodiments can be referred to, which is not described here.

[0108] The technical scheme of the present application determines the cumulative growth amount of microorganisms in the drainage channel of the air conditioner according to the temperature and humidity in the drainage channel after the air conditioner is stopped, the cumulative growth amount is used to reflect the growth accumulation degree of the microorganisms in the drainage channel under different temperature and humidity conditions, and the sterilization module of the air conditioner is started to perform sterilization when the cumulative growth amount is greater than or equal to a preset threshold. Thus, the sterilization module is started according to the threshold of the cumulative growth amount of the microorganisms in the drainage channel after the air conditioner is stopped, the sterilization operation is ensured to be performed in the critical stage of the growth of the microorganisms, the sterilization effect is improved, the number of invalid starts of the sterilization module is reduced, unnecessary loss is reduced, and the service life of the sterilization module is prolonged.

[0109] According to the embodiment of the present application, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner can include the control device of the air conditioner described above.

[0110] Since the processing and functions realized by the air conditioner of the present embodiment are basically corresponding to the embodiments, principles and examples of the foregoing device, the descriptions of the present embodiment that are not elaborated can be referred to the related descriptions in the foregoing embodiments, which will not be repeated here.

[0111] The technical scheme of the present application determines the cumulative growth amount of microorganisms in the drainage channel of the air conditioner according to the temperature and humidity in the drainage channel after the air conditioner is stopped, the cumulative growth amount is used to reflect the growth accumulation degree of the microorganisms in the drainage channel under different temperature and humidity conditions, and the sterilization module of the air conditioner is started to perform sterilization when the cumulative growth amount is greater than or equal to a preset threshold. Thus, the sterilization module is started according to the threshold of the cumulative growth amount of the microorganisms in the drainage channel after the air conditioner is stopped, the sterilization operation is ensured to be performed in the critical stage of the growth of the microorganisms, the sterilization effect is improved, the number of invalid starts of the sterilization module is reduced, unnecessary loss is reduced, and the service life of the sterilization module is prolonged.

[0112] According to the embodiment of the present application, a storage medium corresponding to the control method of the air conditioner is also provided. The storage medium includes a stored program, wherein the device where the storage medium is located performs the control method of the air conditioner described above when the program runs.

[0113] Since the processing and functions realized by the storage medium of the present embodiment are basically corresponding to the embodiments, principles and examples of the foregoing method, the descriptions of the present embodiment that are not elaborated can be referred to the related descriptions in the foregoing embodiments, which will not be repeated here.

[0114] The technical scheme of the present application determines the cumulative growth amount of microorganisms in the drainage channel of the air conditioner according to the temperature and humidity in the drainage channel after the air conditioner is stopped, the cumulative growth amount is used to reflect the growth accumulation degree of the microorganisms in the drainage channel under different temperature and humidity conditions, and the sterilization module of the air conditioner is started to perform sterilization when the cumulative growth amount is greater than or equal to a preset threshold value. Thus, the sterilization module is started according to the threshold value of the cumulative growth amount of the microorganisms in the drainage channel after the air conditioner is stopped, the sterilization operation is ensured to be performed in the critical stage of the growth of the microorganisms, the sterilization effect is improved, the number of invalid starts of the sterilization module is reduced, unnecessary loss is reduced, and the service life of the sterilization module is prolonged.

[0115] According to the embodiment of the present application, a computer program product corresponding to the control method of the air conditioner is also provided, the computer program product comprises a computer program, and the computer program product is processed to implement the steps of the control method of the air conditioner.

[0116] Since the processing and functions implemented by the computer program product of the present embodiment are basically corresponding to the embodiments, principles and examples of the foregoing method, the description of the present embodiment is not detailed, and the related description in the foregoing embodiments can be referred to, which is not repeated here.

[0117] The technical scheme of the present application determines the cumulative growth amount of microorganisms in the drainage channel of the air conditioner according to the temperature and humidity in the drainage channel after the air conditioner is stopped, the cumulative growth amount is used to reflect the growth accumulation degree of the microorganisms in the drainage channel under different temperature and humidity conditions, and the sterilization module of the air conditioner is started to perform sterilization when the cumulative growth amount is greater than or equal to a preset threshold value. Thus, the sterilization module is started according to the threshold value of the cumulative growth amount of the microorganisms in the drainage channel after the air conditioner is stopped, the sterilization operation is ensured to be performed in the critical stage of the growth of the microorganisms, the sterilization effect is improved, the number of invalid starts of the sterilization module is reduced, unnecessary loss is reduced, and the service life of the sterilization module is prolonged.

[0118] In summary, those skilled in the art can easily understand that the above-mentioned advantageous modes can be freely combined and superimposed without conflict.

[0119] The above only describes the embodiments of the present application and is not used to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner includes a sterilization module and a drainage channel for draining condensed water; the method includes: After the air conditioner is shut down, obtaining the real-time temperature and real-time humidity in the drainage channel; determining a cumulative growth amount of microorganisms in the drainage channel according to the real-time temperature and the real-time humidity; the cumulative growth amount is used to reflect the cumulative growth degree of microorganisms in the drainage channel under different temperature and humidity conditions; Determine the size of the cumulative growth; if the cumulative growth is less than a preset threshold, continue to determine the cumulative growth based on the real-time temperature and the real-time humidity; if the cumulative growth is greater than or equal to the preset threshold, turn on the sterilization module to sterilize the drainage channel.

2. The air conditioner control method according to claim 1, characterized in that: Determining the cumulative growth of microorganisms in the drainage channel according to the real-time temperature and the real-time humidity includes: Determining the temperature and humidity interval to which the real-time temperature and the real-time humidity belong; From the preset correspondence between the temperature and humidity range and the microbial growth rate, determining the corresponding microbial growth rate according to the temperature and humidity range; Obtaining the residence time of the real-time temperature and the real-time humidity within the temperature and humidity range; Calculating a microbial growth parameter within the temperature and humidity range, wherein the microbial growth parameter is the product of the microbial growth rate and the residence time; The microbial growth parameters in each temperature and humidity range during the air conditioner shutdown period are accumulated to obtain the cumulative growth amount.

3. The air conditioner control method according to claim 1 or 2, characterized in that: The drainage channel is provided with a water storage area for storing condensed water, the water storage area is provided with an installation groove, and the sterilization module is placed in the installation groove; the sterilization module can electrolyze the water in the water storage area to sterilize the drainage channel.

4. The air conditioner control method according to claim 3, characterized in that: The method further comprises: When the cumulative growth amount is greater than or equal to a preset threshold, the air conditioner is turned on and operates in cooling mode or dehumidification mode; the wind gear of the air conditioner is set to a preset ultra-quiet gear, and the air guide plate is adjusted to an anti-direct blowing position.

5. The air conditioner control method according to claim 4, characterized in that: The method further comprises: Before starting the sterilization module, obtaining the water level of the water storage area; Determining the water level; If the water level is greater than the preset water level, the sterilization module is turned on; If the water level is less than or equal to the preset water level, the sterilization module is not turned on.

6. The air conditioner control method according to claim 5, characterized in that: The method further comprises: After the sterilization module runs for a preset first time period and is shut down, the air conditioner is controlled to continue running in a cooling mode or a dehumidification mode for a preset second time period.

7. A control device for an air conditioner, characterized in that: The air conditioner includes a sterilization module and a drainage channel for draining condensed water; the device includes: an acquisition unit configured to acquire the real-time temperature and real-time humidity in the drainage channel after the air conditioner is shut down; a control unit configured to determine a cumulative growth amount of microorganisms in the drainage channel according to the real-time temperature and the real-time humidity; the cumulative growth amount is used to reflect the cumulative growth degree of microorganisms in the drainage channel under different temperature and humidity conditions; The control unit is also configured to determine the size of the cumulative growth; if the cumulative growth is less than a preset threshold, continue to determine the cumulative growth based on the real-time temperature and the real-time humidity; if the cumulative growth is greater than or equal to the preset threshold, turn on the sterilization module to sterilize the drainage channel.

8. An air conditioner, characterized in that: include: The air conditioner control device according to 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 method according to any one of claims 1 to 6 are implemented.

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