Air conditioner, control method thereof and computer readable storage medium

Abstract

The invention discloses an air conditioner and a control method thereof and a computer readable storage medium, the air conditioner comprises an indoor unit, an outdoor unit and a water consumption assembly, the indoor unit comprises an indoor water tank used for collecting indoor condensate water, and the outdoor unit comprises an outdoor water tank used for collecting outdoor condensate water and defrosting water; the water consumption assembly comprises a first water pump and a second water pump, the first water pump is used for pumping water in the outdoor water tank to the indoor water tank, and the second water pump is used for pumping water in the indoor water tank to the outside. Water in the indoor water tank is consumed; determining whether the air conditioner enters a defrosting mode or not; and when the air conditioner enters the defrosting mode, the first water pump and the second water pump are controlled to work so as to conduct defrosting and prevent freezing water consumption. By means of the control method, water freezing can be prevented in the low-temperature environment, and water consumption can be completed.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a control method for an air conditioner, a computer-readable storage medium and an air conditioner. Background Art

[0002] In the related art, the ways to reuse the condensed water of window air conditioners include pumping water and spraying heat exchangers, etc., by collecting and consuming the condensed water, the purpose of not needing to drain water is achieved. For cooling-only air conditioners, only the condensed water on the evaporator side needs to be collected for reuse. For heating-cooling air conditioners, the condensed water in the cooling mode is on the indoor side, and the condensed water in the heating mode is on the outdoor side. The condensed water consumption needs to be concentrated on the indoor side or the outdoor side for reuse. By reusing water, the efficiency of the heat exchanger can be improved and the problem of condensed water discharge can be solved.

[0003] For cooling and heating type air conditioners, when the air conditioner is heating in a cold environment, a spray heat exchanger is used to consume water, increase the ambient humidity, and improve comfort. At the same time, defrosting and condensation in low-temperature heating will produce condensed water, which needs to be consumed by spraying in time to achieve the purpose of water consumption. Therefore, it is necessary to ensure that the liquid water in the water tank is in the form of water consumption or water utilization. However, in a low-temperature environment, ice is prone to appear in the water tank, causing the drainage system to freeze and block and unable to complete water consumption normally. In severe cases, the air conditioner cannot be used normally. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first object of the present invention is to provide a control method for an air conditioner, by controlling the second water pump, so as to consume the water in the indoor water tank, and when the air conditioner enters the defrosting mode, controlling the first water pump and the second water pump to work, so as to consume the defrosting and anti-freezing water, thereby the method can prevent the water from freezing continuously in a low temperature environment and complete the water consumption.

[0005] A second object of the present invention is to provide a computer-readable storage medium.

[0006] The third object of the present invention is to provide an air conditioner.

[0007] A fourth object of the present invention is to provide an air conditioner.

[0008] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present invention proposes a control method for an air conditioner, the air conditioner comprising an indoor unit, an outdoor unit and a water consumption component, the indoor unit comprising an indoor water tank for collecting indoor condensed water, the outdoor unit comprising an outdoor water tank for collecting outdoor condensed water and defrost water, the water consumption component comprising a first water pump and a second water pump, the first water pump being used to pump water in the outdoor water tank to the indoor water tank, and the second water pump being used to pump water in the indoor water tank to the outdoors, the method comprising: when the air conditioner is in heating mode and the demand for water consumption is met, controlling the second water pump to consume water in the indoor water tank; determining whether the air conditioner enters the defrost mode; and when the air conditioner enters the defrost mode, controlling the first water pump and the second water pump to work to perform defrosting and prevent freezing water consumption.

[0009] According to the control method of the air conditioner of the embodiment of the present invention, when the air conditioner is in the heating mode and meets the water consumption demand, the second water pump is controlled to consume the water in the indoor water tank, and it is determined whether the air conditioner enters the defrost mode. When the air conditioner enters the defrost mode, the first water pump and the second water pump are controlled to work to perform defrosting and anti-freezing water consumption. Therefore, the method can prevent water from freezing continuously in a low temperature environment and complete water consumption.

[0010] In addition, the control method of the air conditioner according to the above embodiment of the present invention may also have the following additional technical features:

[0011] According to one embodiment of the present invention, after controlling the first water pump and the second water pump to operate, the method further includes: obtaining a first water level of the outdoor water tank and a second water level of the indoor water tank; when the first water level is less than or equal to a first preset low water level and the second water level is greater than the second preset low water level, or when the first water level is greater than the first preset low water level, controlling the air conditioner to enter a defrosting mode.

[0012] According to an embodiment of the present invention, after controlling the air conditioner to enter the defrosting mode and completing defrosting, the method further includes: controlling the first water pump and the second water pump to operate to consume defrosting water.

[0013] According to one embodiment of the present invention, when the air conditioner has not entered the defrost mode, the method further includes: obtaining a first water level of the outdoor water tank; when the first water level is greater than a first preset low water level, controlling the air conditioner to enter the defrost mode; when the first water level is greater than a first preset high water level, controlling the air conditioner to alarm and shut down.

[0014] According to an embodiment of the present invention, the method further includes: acquiring a second water level of the indoor water tank; and determining that the demand for water consumption is met when the second water level is greater than a second preset low water level.

[0015] According to one embodiment of the present invention, controlling the first water pump and the second water pump to operate includes: controlling the first water pump and the second water pump to operate alternately; and / or controlling the first water pump and the second water pump to operate simultaneously.

[0016] According to one embodiment of the present invention, the indoor unit also includes an indoor heat exchanger, and the water consumption component also includes a third water pump, and the third water pump is used to pump water in the indoor water tank to humidify the indoor heat exchanger; the method also includes: controlling the third water pump to operate in response to a humidification instruction; obtaining a second water level of the indoor water tank; and controlling the second water pump to operate when the second water level is greater than a second preset low water level.

[0017] According to one embodiment of the present invention, the method further includes: obtaining a first water level of the outdoor water tank; when the first water level is greater than a first preset low water level, controlling the first water pump to operate so as to consume water in the outdoor water tank.

[0018] According to one embodiment of the present invention, the method also includes: in response to a shutdown instruction, obtaining a first water level of the outdoor water tank; when the first water level is less than or equal to a first preset low water level, first controlling the first water pump and the second water pump to work, and then controlling the air conditioner to shut down; when the first water level is greater than the first preset low water level, first controlling the air conditioner to enter a defrosting mode, and after defrosting is completed, controlling the first water pump and the second water pump to work, and then controlling the air conditioner to shut down.

[0019] According to an embodiment of the present invention, the first water level of the outdoor water tank is acquired by an air detector.

[0020] According to one embodiment of the present invention, the air detector includes one of a resistive detector, a capacitive detector, and a light reflection sensor.

[0021] According to one embodiment of the present invention, the indoor unit also includes an indoor heat exchanger, the outdoor unit also includes an outdoor heat exchanger, and the air conditioner also includes a heat exchange pipeline for connecting the indoor heat exchanger and the outdoor heat exchanger, and a partial section of the heat exchange pipeline is built into the outdoor water tank and / or thermally connected to the pipeline where the first water pump is located.

[0022] To achieve the above-mentioned purpose, a second embodiment of the present invention provides a computer-readable storage medium having a program stored thereon, which implements the above-mentioned air conditioner control method when executed by a processor.

[0023] The computer-readable storage medium of the embodiment of the present invention can prevent water from freezing continuously and complete water consumption in a low-temperature environment by executing the above-mentioned air conditioner control method.

[0024] To achieve the above objectives, a third embodiment of the present invention proposes an air conditioner, comprising: a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the above air conditioner control method is implemented.

[0025] According to the air conditioner of the embodiment of the present invention, by executing the above-mentioned air conditioner control method, it is possible to prevent water from continuously freezing and complete water consumption in a low temperature environment.

[0026] To achieve the above-mentioned purpose, the fourth aspect of the present invention proposes an air conditioner, comprising: an indoor unit, an outdoor unit and a water consumption component, the indoor unit comprising an indoor water tank for collecting indoor condensed water, the outdoor unit comprising an outdoor water tank for collecting outdoor condensed water and defrost water, the water consumption component comprising a first water pump and a second water pump, the first water pump being used to pump water in the outdoor water tank to the indoor water tank, and the second water pump being used to pump water in the indoor water tank to the outdoors; a controller being used to control the second water pump when the air conditioner is in heating mode and meets the demand for water consumption, so as to consume water in the indoor water tank, and to determine whether the air conditioner enters the defrost mode, and when the air conditioner enters the defrost mode, to control the first water pump and the second water pump to work, so as to perform defrosting and prevent freezing water consumption.

[0027] According to the air conditioner of the embodiment of the present invention, the controller is used to control the second water pump to consume the water in the indoor water tank when the air conditioner is in the heating mode and meets the water consumption demand, and determine whether the air conditioner enters the defrost mode, and when the air conditioner enters the defrost mode, control the first water pump and the second water pump to work to perform defrosting and anti-freezing water consumption. Thus, the air conditioner can prevent water from freezing continuously and complete water consumption in a low temperature environment.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a flow chart of a method for controlling an air conditioner according to an embodiment of the present invention;

[0030] Figure 2 is a structural schematic diagram of an air conditioner according to an embodiment of the present invention;

[0031] Figure 3 is a flow chart of a method for controlling an air conditioner according to a specific example of the present invention;

[0032] Figure 4 FIG. 4 is a block diagram of an air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The following describes a control method for an air conditioner, a computer-readable storage medium, and an air conditioner according to embodiments of the present invention with reference to the accompanying drawings.

[0035] In one embodiment of the present invention, Figure 2 As shown, the air conditioner 200 may include an indoor unit 110, an outdoor unit 120 and a water consumption component 130. The indoor unit 110 may include an indoor water tank 111 for collecting indoor condensed water, the outdoor unit 120 may include an outdoor water tank 121 for collecting outdoor condensed water and defrost water, and the water consumption component 130 may include a first water pump 131 and a second water pump 132. The first water pump 131 is used to pump the water in the outdoor water tank 121 to the indoor water tank 111, and the second water pump 132 is used to pump the water in the indoor water tank 111 to the outdoors.

[0036] Specifically, when the air conditioner 200 is in a cooling condition, when the indoor air flows through the indoor heat exchanger of the air conditioner 200 to exchange heat, the water vapor in the air condenses to form condensed water, and the indoor water tank 111 can collect the condensed water dripping from the indoor heat exchanger. When the water level in the indoor water tank 111 is high, the second water pump 132 can pump the water in the indoor water tank 111 to the outside, thereby realizing water consumption. When the air conditioner 200 is in the heating condition, when the outdoor air flows through the outdoor heat exchanger of the air conditioner outdoor unit to exchange heat, the water vapor in the air condenses to form condensed water. The outdoor water tank 121 can collect the condensed water dripping from the outdoor heat exchanger, or because during heating, the outdoor unit absorbs heat from the surrounding air and reduces the ambient temperature of the outdoor unit. When the ambient temperature drops to about 0 degrees, the moisture in the air is condensed into frost and adheres to the heat exchange plate of the outdoor unit. When the frost increases, it will affect the heat absorption of the outdoor unit. The air conditioner will start the defrost program, generally stopping the heating program and starting the cooling program, allowing the high-temperature gas of the compressor to enter the outdoor unit, and the frost will be melted, and water will flow out. The outdoor water tank 121 can also collect the defrosted water, and when the water level in the outdoor water tank 121 is high, the first water pump 131 is used to pump the water in the outdoor water tank 121 to the indoor water tank 111, and the second water pump 132 can pump the water in the indoor water tank 111 to the outdoors, thereby realizing water consumption.

[0037] In addition, if Figure 2As shown, the indoor unit 110 may further include an indoor heat exchanger 112, the outdoor unit 120 may include an outdoor heat exchanger 122, and the water consumption component 130 may further include a third water pump 133. When the indoor temperature is relatively dry, the water in the indoor water tank 111 may be pumped to the indoor heat exchanger 112 by the third water pump 133, thereby achieving the purpose of humidification.

[0038] Figure 1 FIG. 4 is a flow chart of a method for controlling an air conditioner according to an embodiment of the present invention.

[0039] like Figure 1 As shown, the control method of the air conditioner according to the embodiment of the present invention may include the following steps:

[0040] S1, when the air conditioner is in a heating mode and the demand for water consumption is met, the second water pump is controlled to consume the water in the indoor water tank.

[0041] S2, determining whether the air conditioner enters the defrost mode.

[0042] S3, when the air conditioner enters the defrost mode, controlling the first water pump and the second water pump to operate to perform defrosting and prevent freezing water consumption.

[0043] Specifically, the operation modes of the air conditioner may include cooling mode, heating mode, dehumidification mode, air supply mode, defrosting mode, etc. When the temperature is low, the air conditioner will be operated in heating mode. When the air conditioner is in heating mode and the demand for water consumption is met, the second water pump can be controlled to consume the water in the indoor water tank. For example, meeting the demand for water consumption can be understood as when the amount of water in the indoor water tank is large, the water needs to be consumed in time to prevent the water in the indoor water tank from overflowing after excessive water. That is, in order to ensure that the indoor water tank has enough water storage space, the second water pump can be controlled to pump the water in the indoor water tank to the outdoors through the second water pump to consume the water in the indoor water tank. Among them, the water in the indoor water tank can include condensed water or defrosting water that enters the indoor water tank from the outdoor water tank, and can also include condensed water dripping from the indoor heat exchanger.

[0044] In addition, when the air conditioner is running in heating mode, the outdoor unit absorbs heat from the surrounding air and lowers the ambient temperature of the outdoor unit. When the ambient temperature drops to around 0 degrees, the moisture in the air condenses into frost and adheres to the heat exchanger plates of the outdoor unit. When the frost increases, it will affect the heat absorption of the outdoor unit. The air conditioner can start the defrost program, generally by stopping the heating program and starting the cooling program to allow the high-temperature gas from the compressor to enter the outdoor unit for defrosting. At this time, the temperature of the indoor heat exchanger drops sharply. When the outdoor ambient temperature is low, if there is residual water in the pipeline, it will freeze. After freezing, it will affect the normal operation and water consumption of the first water pump. The freezing of the water pipeline will cause the pipeline to freeze and be unable to drain.

[0045] Therefore, when it is determined that the air conditioner enters the defrost mode, the defrost water will continuously drip into the outdoor water tank, and the first water pump and the second water pump can be controlled to work. For example, the first water pump can be controlled to work for a period of time, and then the second water pump can be controlled to work for a period of time, and this cycle is repeated until the defrost is completed. Therefore, the operation of the first water pump and the second water pump can drive the flow of water and air to prevent the phenomenon of ice blockage caused by fluid stagnation during defrost. Therefore, the water in the outdoor water tank is dynamically extracted to ensure that the water pipe will not be frozen, and the defrost water can be pumped from the outdoor water tank to the indoor water tank, and the water in the indoor tank can be pumped to the outdoor for consumption.

[0046] It should be noted that when controlling the first water pump and the second water pump, the amount of water pumped by the first water pump during the working time can be controlled to be equal to the amount of water pumped by the second water pump during the working time, and the working time can be minimized according to the characteristics of the water pump, so that the amount of water pumped to the indoor water tank can be the same as the amount of water pumped to the outdoors, and the time consumed can be minimized.

[0047] In this way, it is possible to prevent water from freezing continuously and meet the demand for water consumption in a low-temperature environment.

[0048] The specific working process of the air conditioner control method of the present invention is described in detail below.

[0049] According to one embodiment of the present invention, after controlling the first water pump and the second water pump to operate, the control method of the air conditioner also includes: obtaining a first water level of an outdoor water tank and a second water level of an indoor water tank; when the first water level is less than or equal to a first preset low water level and the second water level is greater than the second preset low water level, or when the first water level is greater than the first preset low water level, controlling the air conditioner to enter a defrosting mode.

[0050] Specifically, by controlling the operation of the first water pump and the second water pump, the water and air in the pipeline can be driven to flow, preventing the fluid from being stagnant during defrosting and causing ice blockage. After the defrosting is completed, it is necessary to determine whether the water in the current outdoor water tank and the residual water in the water pipeline are frozen in a low temperature environment. The water content in the outdoor water tank and the indoor water tank can be detected. First, the first water level of the outdoor water tank and the second water level of the indoor water tank are obtained, and the first water level is compared with the first preset low water level, and the second water level is compared with the second preset low water level. When the first water level is less than or equal to the first preset low water level and the second water level is greater than the second preset low water level, it means that there is no residual water or less residual water in the current outdoor water tank, and the water in the indoor water tank cannot be consumed normally, indicating that there is freezing blockage in the pipeline. The air conditioner can be controlled to enter the defrosting mode to increase the temperature to heat the pipeline, thereby melting the frozen water.

[0051] In addition, when comparing the first water level with the first preset low water level, if the first water level is greater than the first preset low water level, it means that there is a lot of residual water in the outdoor water tank that cannot be discharged, and the first water pump is frozen and cannot drain the water. The air conditioner can be controlled to enter the defrosting mode to increase the temperature and heat the pipes, thereby melting the frozen water.

[0052] If the first water level is less than or equal to the first preset low water level and the second water level is less than or equal to the second preset low water level, it means that there is no residual water or little residual water in the outdoor water tank, and there is no residual water or little residual water in the indoor water tank, and you can wait for the user to turn off the power or the air conditioner to re-enter the heating operation mode.

[0053] According to an embodiment of the present invention, after controlling the air conditioner to enter the defrosting mode and completing defrosting, the control method of the air conditioner further includes: controlling the first water pump and the second water pump to operate to consume defrosting water.

[0054] Specifically, since the air conditioner enters the defrosting mode, the pipe temperature can be increased in this mode. For example, the speed of the indoor fan can be increased to increase heat dissipation, or the ice in the water pipe can be melted by adding a resistive heating belt or other ice-melting methods that can increase high heat. After waiting for the defrosting to be completed, a large amount of water will accumulate in the outdoor water tank. Therefore, the first water pump and the second water pump can also be controlled to work. For example, the first water pump can be controlled to work for a period of time. After all the defrosting water in the outdoor water tank is pumped to the indoor water tank, the second water pump can be controlled to work for a period of time to pump all the defrosting water in the indoor water tank to the outdoors. The defrosting water is finally consumed by spraying.

[0055] According to one embodiment of the present invention, when the air conditioner has not entered the defrost mode, the control method of the air conditioner also includes: obtaining a first water level of an outdoor water tank; when the first water level is greater than a first preset low water level, controlling the air conditioner to enter the defrost mode; when the first water level is greater than a first preset high water level, controlling the air conditioner to alarm and shut down.

[0056] Specifically, when the air conditioner is in the heating mode for a short time and has not entered the defrost mode, the air conditioner can perform conventional anti-freeze methods, that is, first obtain the first water level of the outdoor water tank, and compare the first water level with the first preset low water level. When the first water level is greater than the first preset low water level, it means that there is residual water or ice in the outdoor water tank. The air conditioner can be controlled to enter the defrost mode to melt the ice to prevent the water volume from continuing to increase. In a low temperature environment, the ice will not freeze into ice to affect the discharge of condensed water in the outdoor water tank.

[0057] After comparing the first water level with the first preset low water level, it is also necessary to determine the relationship between the first water level and the first preset high water level. When the first water level is greater than or lower than the preset high water level, it indicates that there is a lot of residual water or ice in the outdoor water tank. There is a risk of water overflowing out of the outdoor water tank. The overflowing water will freeze and damage the fan blades. Therefore, the air conditioner can be controlled to alarm and shut down to prevent damage to the air conditioner.

[0058] When the first water level is less than the first preset low water level, it indicates that there is no residual water in the outdoor water tank, or the residual water is small, and the user can wait to shut down the machine or re-enter the heating mode.

[0059] According to an embodiment of the present invention, the control method of the air conditioner further includes: obtaining a second water level of the indoor water tank; and determining that the water consumption demand is met when the second water level is greater than a second preset low water level. The second preset low water level can be determined according to actual conditions.

[0060] Specifically, in order to ensure that the indoor water tank has enough space to store condensed water, defrosting water or ice-melting water pumped from the outdoor water tank, it is necessary to constantly detect the current water level of the indoor water tank. That is, first obtain the second water level of the indoor water tank, and judge the second water level. When the second water level is greater than the second preset low water level, it means that there is a lot of water in the current indoor water tank. When the water in the outdoor water tank is pumped to the indoor water tank, the water in the indoor water tank may exceed the maximum capacity of the water tank. As the water overflows, the normal operation of the air conditioner may be affected. In this case, it can be determined that the demand for water consumption is met. Therefore, when the demand for water consumption is met, the second water pump can be controlled to work, so that the water in the indoor water tank is pumped to the outdoors to ensure that the indoor water tank has enough water storage space.

[0061] It should be noted that the working time of the water pump is determined according to the second water pump consuming the water in the indoor water tank to below the second preset low water level. When the second water level is less than or equal to the second preset low water level, the second water pump can be controlled to stop working.

[0062] According to one embodiment of the present invention, controlling the first water pump and the second water pump to operate includes: controlling the first water pump and the second water pump to operate alternately; and / or controlling the first water pump and the second water pump to operate simultaneously.

[0063] Specifically, when controlling the operation of the first water pump and the second water pump, the control can be performed in a manner that the first water pump and the second water pump work alternately, that is, when it is determined that the air conditioner enters the defrost mode, the defrost water will continuously drip into the outdoor water tank, and the first water pump and the second water pump can be controlled to work alternately, for example, the first water pump can be controlled to work for a period of time, and then the second water pump can be controlled to work for a period of time, and this cycle is repeated until the defrost is completed. Thus, the operation of the first water pump and the second water pump can drive the flow of water and air to prevent the phenomenon of ice blockage caused by the stationary fluid during the defrost period. Thus, the water in the outdoor water tank is dynamically extracted to ensure that the water in the water pipe will not be frozen, and the defrost water can be pumped from the outdoor water tank to the indoor water tank, and the water in the indoor water tank is pumped to the outdoor for consumption, and when the first water pump is working, the second water pump is not working, or when the second water pump is working, the first water pump is not working, which can also achieve the purpose of saving energy, and can also avoid the problem of noise when pumping water when the amount of water in the outdoor water tank or the indoor water tank is small.

[0064] It should be noted that when controlling the first water pump and the second water pump, the amount of water pumped by the first water pump during the working time can be controlled to be equal to the amount of water pumped by the second water pump during the working time, and the working time can be minimized according to the characteristics of the water pump, so that the amount of water pumped to the indoor water tank can be the same as the amount of water pumped to the outdoors, and the time consumed can be minimized.

[0065] Alternatively, when controlling the operation of the first water pump and the second water pump, the first water pump and the second water pump can be controlled to operate simultaneously, that is, when the first water pump is operating, the second water pump is also operating, so that when it is determined that the air conditioner enters the defrost mode, the defrost water will continuously drip into the outdoor water tank, and the first water pump and the second water pump can be controlled to operate simultaneously. For example, the first water pump pumps the water in the outdoor water tank to the indoor water tank, and the second water pump simultaneously pumps the water in the indoor water tank to the outdoors, so that the operation of the first water pump and the second water pump can drive the flow of water and air, thereby preventing the stagnation of the fluid during the defrost period from causing ice blockage. Thus, the water in the outdoor water tank can be dynamically extracted to ensure that the water in the water pipe will not be frozen.

[0066] Alternatively, the first water pump and the second water pump may be controlled to work alternately first and then control the first water pump and the second water pump to work simultaneously, or the first water pump and the second water pump may be controlled to work simultaneously first and then control the first water pump and the second water pump to work alternately, so as to dynamically pump the water in the outdoor water tank to the indoor water tank, and then pump the water in the indoor water tank to the outdoors, so that the operation of the first water pump and the second water pump can drive the flow of water and air, prevent the stagnation of fluid during defrosting and cause ice blockage, and ensure that the water in the water pipe will not be frozen.

[0067] According to one embodiment of the present invention, the indoor unit also includes an indoor heat exchanger, and the water consumption component also includes a third water pump, which is used to pump water in the indoor water tank to humidify the indoor heat exchanger; the control method of the air conditioner also includes: controlling the third water pump to work in response to a humidification instruction; obtaining a second water level of the indoor water tank; and controlling the second water pump to work when the second water level is greater than a second preset low water level.

[0068] Specifically, the indoor unit may also include an indoor heat exchanger. When the air conditioner is operating in cooling mode, the indoor water tank can collect condensed water flowing down the indoor heat exchanger, and the water level information in the indoor water tank can be detected. When the condensed water in the indoor water tank increases to a certain position, the third water pump can be controlled to start working to pump the water in the indoor water tank through the pipeline to the indoor heat exchanger, thereby humidifying the indoor heat exchanger and improving the heat exchange efficiency.

[0069] In addition, when the air conditioner is in heating mode, the indoor air is relatively dry in heating mode. Therefore, when the first water pump pumps the condensed water in the outdoor water tank to the indoor water tank, the water in the indoor water tank can be pumped to the outdoor through the second water pump to achieve water consumption, and the water in the indoor water tank can be pumped to the indoor heat exchanger through the third water pump to humidify the indoor air and improve the user experience. That is, when the humidification instruction is received, the third water pump is controlled to work, and the water in the indoor water tank is pumped to the indoor heat exchanger through the third water pump to humidify the indoor heat exchanger, and then the second water level of the indoor water tank can be obtained. For example, the second water level of the indoor water tank can be determined by the water level switch. After the second water level is obtained, the second water level is compared with the second preset low water level. When the second water level is greater than the second preset low water level, it means that the current amount of water for indoor humidification is insufficient to complete the consumption of the water in the indoor water tank. The second water pump can be controlled to pump the water in the indoor water tank to the outdoor air to achieve effective water consumption.

[0070] It should be noted that before the air conditioner responds to the humidification instruction and controls the third water pump to work, the indoor environmental humidity can be obtained first, for example, the indoor environmental humidity can be detected by a humidity detector, and after the indoor environmental humidity is obtained, the indoor environmental humidity is compared with a preset environmental humidity threshold. When the indoor environmental humidity is less than the preset environmental humidity threshold, the third water pump can be controlled to work in response to the humidification instruction; when the indoor environmental humidity is greater than or equal to the preset environmental humidity threshold, humidification is not performed and the third water pump does not work. The preset environmental humidity threshold can be determined according to actual conditions.

[0071] According to an embodiment of the present invention, the control method of the air conditioner further includes: obtaining a first water level of the outdoor water tank; when the first water level is greater than a first preset low water level, controlling the first water pump to operate so as to consume the water in the outdoor water tank. The first preset low water level can be determined according to actual conditions.

[0072] Specifically, the outdoor water tank can collect condensed water or defrost water dripping from the outdoor heat exchanger. In order to ensure that the water in the outdoor water tank does not overflow, or prevent the water in the outdoor water tank from freezing, etc., the water level information in the outdoor water tank can be judged first, that is, the first water level of the outdoor water tank is obtained. After obtaining the first water, the first water level and the first preset low water level are judged. When the first water level is greater than the first preset low water level, it means that there is a lot of water in the current outdoor water tank. If it is not consumed in time, it will freeze in a low temperature environment. Therefore, the first water pump can be controlled to consume the water in the outdoor water tank. For example, the water in the outdoor water tank can be pumped to the indoor water tank, and then the water in the indoor water tank can be pumped to the outdoors, thereby completing the consumption of the condensed water in the outdoor water tank.

[0073] According to one embodiment of the present invention, the control method of the air conditioner also includes: in response to a shutdown command, obtaining a first water level of an outdoor water tank; when the first water level is less than or equal to a first preset low water level, first controlling the first water pump and the second water pump to operate, and then controlling the air conditioner to shut down; when the first water level is greater than the first preset low water level, first controlling the air conditioner to enter a defrosting mode, and after defrosting is completed, controlling the first water pump and the second water pump to operate, and then controlling the air conditioner to shut down.

[0074] Specifically, when the air conditioner is turned off, it is necessary to determine whether there is still water or ice in the outdoor water tank according to the water level of the outdoor water tank again to ensure that the air conditioner can operate normally next time. That is, after receiving the shutdown command, the first water level of the outdoor water tank is obtained and the first water level is judged. When the first water level is less than or equal to the first preset water level, it means that there is still some water in the current outdoor water tank that has not been consumed. If it is not consumed in time, it will freeze in a low temperature environment. Therefore, the first water pump can be controlled to work first to pump the water in the outdoor water tank to the indoor water tank, and then the second water pump can be controlled to work to pump the water in the indoor water tank to the outdoors, so that all the water in the outdoor water tank is consumed. After the water consumption is completed, the air conditioner can be controlled to shut down.

[0075] When judging the first water level, if the first water level is greater than the first preset low water level, it means that part of the ice in the current outdoor water tank has not been melted. If ice is not melted in time, the normal operation and water consumption of the first water pump will be affected. Therefore, the air conditioner can be controlled to enter the ice-melting mode first. After entering the ice-melting mode, the ice is melted by increasing the temperature of the pipeline. After ice-melting, the ice is melted into water and collected in the outdoor water tank. The first pump can be controlled to pump the water in the outdoor water tank to the indoor water tank, and the second pump can be controlled to work to pump the water in the indoor water tank to the outdoors, so that all the water in the outdoor water tank is consumed. After the water consumption is completed, the air conditioner can be controlled to shut down.

[0076] According to an embodiment of the present invention, the first water level of the outdoor water tank is obtained by an air detector, wherein the air detector may include one of a resistive detector, a capacitive detector, and a light reflection sensor.

[0077] Specifically, there are many ways to obtain the water level, for example, the water level can be obtained through a water level switch, or the water level can be obtained through an air detector. It should be noted that when the ambient temperature is high and the water in the outdoor water tank or indoor water tank is not easy to freeze, the float water level switch can be used to detect the water level. When the ambient temperature is low, condensed water may freeze quickly or freeze after a long time under low temperature conditions. At this time, if a water level switch is used, ice and ice debris will appear, which will hinder the normal operation of the water level switch and cause misjudgment of the water level. Therefore, an air detector can be set in the outdoor water tank to obtain the first water level of the outdoor water tank through the air detector.

[0078] That is, air detectors can be set at different heights in the outdoor water tank to detect whether the installation height position is in an air state or a non-air state. Since the physical properties such as the resistance of air and water, and air and ice are obviously different, the water level can be determined by judging the air state and the non-air state. The method is simple and has high precision. The air detector in the present invention can be a resistive detector, a capacitive detector, a light reflection sensor, etc., which can realize the detection method that can distinguish between air and non-air.

[0079] According to one embodiment of the present invention, the indoor unit also includes an indoor heat exchanger, the outdoor unit also includes an outdoor heat exchanger, and the air conditioner also includes a heat exchange pipeline for connecting the indoor heat exchanger and the outdoor heat exchanger, and a partial section of the heat exchange pipeline is built into the outdoor water tank and / or thermally connected to the pipeline where the first water pump is located.

[0080] Specifically, when the air conditioner switches from the heating mode to the defrost mode, the temperature of the indoor heat exchanger drops sharply. When the outdoor ambient temperature is low, the low temperature of the indoor heat exchanger will cause the temperature of some sections of the heat exchange pipeline in the outdoor water tank and the pipeline where the first water pump is located to drop. At this time, if there is residual water in contact, it will freeze. The freezing of the outdoor water tank will affect the normal operation and water consumption of the first water pump. The freezing of the water pipeline will cause the pipeline to freeze and be unable to drain. Similarly, when working normally in an ultra-low temperature environment, the residual water in the outdoor water tank and the water pipeline will also freeze due to insufficient heating and affect the normal water consumption process. Therefore, the water pipeline can be brought into close contact with the heat exchange pipeline. In the heating mode, the refrigerant in the heat exchange pipeline can continuously heat the water pipeline, and can rely on the heat of the heat exchange pipeline to provide heat to the water pipeline to prevent the water pipeline from freezing.

[0081] Thermal connection can be understood as a connection method that can transfer heat. The heat exchange pipeline can conduct heat to the outdoor water tank or the pipeline where the first water pump is located, or to the outdoor water tank and the pipeline where the first water pump is located, so that the ice in the outdoor water tank can be melted and the pipeline can be prevented from freezing, so that the water in the outdoor water tank can be smoothly pumped to the indoor water tank, and the water in the indoor water tank can be smoothly pumped to the outdoors, thereby eliminating the need to add additional heating equipment and saving costs.

[0082] It should be noted that the air conditioner in the present invention is not limited to window air conditioners, but is applicable to other air conditioning systems and non-air conditioning systems that require low-temperature drainage.

[0083] Combine the following Figure 3 The control method of the present invention will be described.

[0084] As a specific example, the control method of the air conditioner of the present invention may include the following steps:

[0085] S101, the air conditioner operates in heating mode.

[0086] S102, determine whether each water pump is operating normally. If yes, execute step S103, if not, execute step S111.

[0087] S103, obtaining a second water level of the indoor water tank.

[0088] S104, determining whether the second water level is greater than the second preset low water level. If yes, executing step S105, if no, executing step S106.

[0089] S105, controlling the second water pump to operate so that the second water level is less than or equal to a second preset low water level.

[0090] S106, determining whether the air conditioner has entered the defrost mode. If yes, executing step S107, if no, executing step S112.

[0091] S107, controlling the first water pump and the second water pump to work alternately to consume defrosting and antifreezing water.

[0092] S108, obtaining a first water level of the outdoor water tank and a second water level of the indoor water tank.

[0093] S109, when the first water level is less than or equal to the first preset low water level and the second water level is greater than the second preset low water level, or when the first water level is greater than the first preset low water level, controlling the air conditioner to enter a defrosting mode.

[0094] S110, after defrosting is completed, the first water pump and the second water pump are controlled to operate to consume defrosting water, and then the process proceeds to step S118.

[0095] S111, the air conditioner shuts down and issues an alarm.

[0096] S112, obtaining a first water level of an outdoor water tank.

[0097] S113, determining whether the first water level is greater than a first preset high water level. If yes, executing step S115, if no, executing step S116.

[0098] S114, controlling the air conditioner to alarm and shut down.

[0099] S115, determining whether the first water level is greater than a first preset low water level. If yes, executing step S116, if no, executing step S118.

[0100] S113, controlling the air conditioner to enter a defrosting mode.

[0101] S117, after defrosting is completed, the first water pump and the second water pump are controlled to operate to consume defrosting water.

[0102] S118, determining whether a shutdown instruction is received. If yes, executing step S119, if not, executing step S101.

[0103] S119, obtaining a first water level of the outdoor water tank.

[0104] S120, determining whether the first water level is greater than a first preset low water level. If yes, executing step S121, if no, executing step S122.

[0105] S121, first control the air conditioner to enter the defrosting mode, and after defrosting is completed, control the first water pump and the second water pump to work, and then control the air conditioner to shut down.

[0106] S122, first control the first water pump and the second water pump to work, and then control the air conditioner to shut down.

[0107] In summary, according to the control method of the air conditioner of the embodiment of the present invention, when the air conditioner is in the heating mode and meets the water consumption demand, the second water pump is controlled to consume the water in the outdoor water tank, and it is determined whether the air conditioner enters the defrost mode. When the air conditioner enters the defrost mode, the first water pump and the second water pump are controlled to work to perform defrosting and anti-freezing water consumption. Therefore, the method can prevent water from freezing continuously in a low temperature environment and complete water consumption.

[0108] Corresponding to the above embodiment, the present invention also proposes a computer-readable storage medium.

[0109] The computer-readable storage medium of the embodiment of the present invention stores a program, and when the program is executed by a processor, the above-mentioned air conditioner control method is implemented.

[0110] According to the computer-readable storage medium of the embodiment of the present invention, by executing the above-mentioned air conditioner control method, it is possible to prevent water from continuously freezing and complete water consumption in a low-temperature environment.

[0111] Corresponding to the above embodiment, the present invention also proposes an air conditioner.

[0112] like Figure 4 As shown, the air conditioner 200 of the embodiment of the present invention may include: a memory 210, a processor 220, and a program stored in the memory 210 and executable on the processor 220. When the processor 220 executes the program, the above-mentioned air conditioner control method is implemented.

[0113] According to the air conditioner of the embodiment of the present invention, by executing the above-mentioned air conditioner control method, it is possible to prevent water from continuously freezing and complete water consumption in a low temperature environment.

[0114] Corresponding to the above embodiment, the present invention also proposes an air conditioner.

[0115] like Figure 2 As shown, the air conditioner 200 provided in the embodiment of the present invention includes: an indoor unit 110 , an outdoor unit 120 , a water consumption component 130 and a controller 140 .

[0116] Among them, the indoor unit 110 includes an indoor water tank 111 for collecting indoor condensed water, the outdoor unit 120 includes an outdoor water tank 121 for collecting outdoor condensed water and defrost water, and the water consumption component 130 includes a first water pump 131 and a second water pump 132. The first water pump 131 is used to pump the water in the outdoor water tank 121 to the indoor water tank 111, and the second water pump 132 is used to pump the water in the indoor water tank 111 to the outdoors; the controller 140 is used to control the second water pump 132 when the air conditioner 200 is in heating mode and the demand for water consumption is met, so as to consume the water in the indoor water tank 111, and determine whether the air conditioner 200 enters the defrost mode, and when the air conditioner 200 enters the defrost mode, control the first water pump 131 and the second water pump 132 to work to perform defrosting and anti-freezing water consumption.

[0117] According to one embodiment of the present invention, after controlling the first water pump 131 and the second water pump 132 to work, the controller 140 is also used to: obtain the first water level of the outdoor water tank 121 and the second water level of the indoor water tank 111; when the first water level is less than or equal to the first preset low water level and the second water level is greater than the second preset low water level, or when the first water level is greater than the first preset low water level, control the air conditioner 200 to enter the defrosting mode.

[0118] According to an embodiment of the present invention, after controlling the air conditioner 200 to enter the defrosting mode and completing defrosting, the controller 140 is further configured to control the first water pump 131 and the second water pump 132 to operate so as to consume defrosting water.

[0119] According to one embodiment of the present invention, when the air conditioner 200 has not entered the defrost mode, the controller 140 is also used to: obtain the first water level of the outdoor water tank 121; when the first water level is greater than a first preset low water level, control the air conditioner 200 to enter the defrost mode; when the first water level is greater than a first preset high water level, control the air conditioner 200 to alarm and shut down.

[0120] According to an embodiment of the present invention, the controller 140 is further configured to: obtain a second water level of the indoor water tank; and determine that the demand for water consumption is met when the second water level is greater than a second preset low water level.

[0121] According to an embodiment of the present invention, the controller 140 controls the operation of the first water pump and the second water pump, specifically, controls the first water pump and the second water pump to operate alternately; and / or controls the first water pump and the second water pump to operate simultaneously.

[0122] According to one embodiment of the present invention, the indoor unit 110 also includes an indoor heat exchanger 112, and the water consumption component 130 also includes a third water pump 133, and the third water pump 133 is used to pump water in the indoor water tank 111 to humidify the indoor heat exchanger 112; the controller 140 is also used to: control the third water pump 133 to work in response to a humidification instruction; obtain a second water level of the indoor water tank 111; and control the second water pump 132 to work when the second water level is greater than a second preset low water level.

[0123] According to one embodiment of the present invention, the controller 140 is further used to: obtain a first water level of the outdoor water tank; and when the first water level is greater than a first preset low water level, control the first water pump to operate so as to consume the water in the outdoor water tank.

[0124] According to one embodiment of the present invention, the controller 140 is also used to: obtain the first water level of the outdoor water tank 121 in response to a shutdown instruction; when the first water level is less than or equal to a first preset low water level, first control the first water pump 131 and the second water pump 132 to work, and then control the air conditioner 200 to shut down; when the first water level is greater than the first preset low water level, first control the air conditioner 200 to enter the defrosting mode, and after the defrosting is completed, control the first water pump 131 and the second water pump 132 to work, and then control the air conditioner 200 to shut down.

[0125] According to one embodiment of the present invention, the first water level of the outdoor water tank 121 is acquired through an air detector.

[0126] According to one embodiment of the present invention, the air detector includes one of a resistive detector, a capacitive detector, and a light reflection sensor.

[0127] According to one embodiment of the present invention, the indoor unit 110 also includes an indoor heat exchanger 112, the outdoor unit also includes an outdoor heat exchanger 122, and the air conditioner 200 also includes a heat exchange pipeline for connecting the indoor heat exchanger 112 and the outdoor heat exchanger 122, and a partial section of the heat exchange pipeline is built into the outdoor water tank 121 and / or thermally connected to the pipeline where the first water pump 131 is located.

[0128] It should be noted that for details not disclosed in the air conditioner of the embodiment of the present invention, please refer to the details disclosed in the control method of the air conditioner of the embodiment of the present invention, and the details will not be repeated here.

[0129] According to the air conditioner of the embodiment of the present invention, the controller is used to control the second water pump to consume water in the indoor water tank when the air conditioner is in the heating mode and meets the water consumption demand, and determine whether the air conditioner enters the defrost mode, and when the air conditioner enters the defrost mode, control the first water pump and the second water pump to work to perform defrosting and anti-freezing water consumption. Thus, the air conditioner can prevent water from freezing continuously and complete water consumption in a low temperature environment.

[0130] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0131] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0132] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0133] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0134] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0135] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner comprises an indoor unit, an outdoor unit and a water consumption component, the indoor unit comprises an indoor water tank for collecting indoor condensed water, the outdoor unit comprises an outdoor water tank for collecting outdoor condensed water and defrost water, the water consumption component comprises a first water pump and a second water pump, the first water pump is used to pump water in the outdoor water tank to the indoor water tank, and the second water pump is used to pump water in the indoor water tank to the outdoors, the method comprises: When the air conditioner is in heating mode and the demand for water consumption is met, controlling the second water pump to consume the water in the indoor water tank; determining whether the air conditioner enters a defrost mode; When the air conditioner enters the defrost mode, the first water pump and the second water pump are controlled to operate to perform defrosting and prevent freezing water consumption.

2. The method according to claim 1, characterized in that After controlling the first water pump and the second water pump to operate, the method further includes: Acquire a first water level of the outdoor water tank and a second water level of the indoor water tank; When the first water level is less than or equal to a first preset low water level and the second water level is greater than the second preset low water level, or when the first water level is greater than the first preset low water level, the air conditioner is controlled to enter a defrosting mode.

3. The method according to claim 2, characterized in that After controlling the air conditioner to enter the defrosting mode and completing defrosting, the method further includes: The first water pump and the second water pump are controlled to operate to consume defrosting water.

4. The method according to claim 1, characterized in that When the air conditioner does not enter the defrost mode, the method further includes: Obtaining a first water level of the outdoor water tank; When the first water level is greater than a first preset low water level, controlling the air conditioner to enter a defrosting mode; When the first water level is greater than a first preset high water level, the air conditioner is controlled to alarm and shut down.

5. The method according to claim 1, characterized in that: The method further comprises: Acquire a second water level of the indoor water tank; When the second water level is greater than a second preset low water level, it is determined that the demand for water consumption is met.

6. The method according to claim 1, characterized in that The controlling the first water pump and the second water pump to operate includes: controlling the first water pump and the second water pump to work alternately; and / or, The first water pump and the second water pump are controlled to operate simultaneously.

7. The method according to claim 1, characterized in that The indoor unit further includes an indoor heat exchanger, the water consumption component further includes a third water pump, and the third water pump is used to pump water in the indoor water tank to humidify the indoor heat exchanger; the method further includes: In response to the humidification instruction, controlling the third water pump to operate; Acquire a second water level of the indoor water tank; When the second water level is greater than a second preset low water level, the second water pump is controlled to operate.

8. The method according to claim 1, characterized in that The method further comprises: Obtaining a first water level of the outdoor water tank; When the first water level is greater than a first preset low water level, the first water pump is controlled to operate so as to consume the water in the outdoor water tank.

9. The method according to claim 1, characterized in that: The method further comprises: In response to a shutdown instruction, obtaining a first water level of the outdoor water tank; When the first water level is less than or equal to a first preset low water level, firstly controlling the first water pump and the second water pump to work, and then controlling the air conditioner to shut down; When the first water level is greater than the first preset low water level, the air conditioner is first controlled to enter the defrosting mode, and after defrosting is completed, the first water pump and the second water pump are controlled to work, and then the air conditioner is controlled to shut down.

10. The method according to claim 2, characterized in that The first water level of the outdoor water tank is obtained through an air detector.

11. The method according to claim 10, characterized in that The air detector includes one of a resistive detector, a capacitive detector, and a light reflection sensor.

12. The method according to any one of claims 1 to 10, characterized in that: The indoor unit also includes an indoor heat exchanger, the outdoor unit also includes an outdoor heat exchanger, and the air conditioner also includes a heat exchange pipeline for connecting the indoor heat exchanger and the outdoor heat exchanger, and a partial section of the heat exchange pipeline is built into the outdoor water tank and / or thermally connected to the pipeline where the first water pump is located.

13. A computer-readable storage medium, characterized in that: A program is stored thereon, and when the program is executed by a processor, the method according to any one of claims 1 to 12 is implemented.

14. An air conditioner, characterized in that: include: A memory, a processor, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the method according to any one of claims 1 to 12 is implemented.

15. An air conditioner, characterized in that: include: An indoor unit, an outdoor unit and a water consumption component, wherein the indoor unit comprises an indoor water tank for collecting indoor condensed water, the outdoor unit comprises an outdoor water tank for collecting outdoor condensed water and defrost water, the water consumption component comprises a first water pump and a second water pump, the first water pump is used to pump water in the outdoor water tank to the indoor water tank, and the second water pump is used to pump water in the indoor water tank to the outdoors; The controller is used to control the second water pump to consume the water in the indoor water tank when the air conditioner is in heating mode and meets the water consumption demand, and to determine whether the air conditioner enters the defrost mode, and when the air conditioner enters the defrost mode, control the first water pump and the second water pump to operate to perform defrosting and anti-freezing water consumption.

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