CN110594951A - A control method, control device and air conditioner for an air conditioner drainage pump - Google Patents

Abstract

The invention provides a control method, a control device and an air conditioner for an air conditioner drainage pump, and relates to the technical field of air conditioners. The control method of the air conditioner drainage pump according to the present invention includes: when the air conditioner is turned on, obtaining the operation mode of the air conditioner when it was turned off last time, and judging whether the operation mode when the air conditioner was turned off last time is cooling or dehumidification mode, if it is not cooling or In the dehumidification mode, the drainage pump is controlled not to be turned on, and the compressor is controlled to run; in the cooling or dehumidification mode, the drainage pump is controlled to run for t1 and then turned off, and then the compressor is controlled to run. The control method, control device, and air conditioner of the air conditioner drainage pump described in the present invention effectively solve the problem of whether the water is received in the prior art by judging the operation mode of the air conditioner when the air conditioner was turned off last time and controlling whether the drainage pump is turned on or not when the air conditioner is turned on. Whether there is water in the plate, the drainage pump will be turned on for a period of time to drain the noise and power consumption caused by the water, and at the same time, it can effectively improve the service life of the drainage pump.

Description

A control method, control device and air conditioner for an air conditioner drainage pump

technical field

The invention relates to the technical field of air conditioners, in particular to a control method, a control device and an air conditioner for an air conditioner drainage pump.

Background technique

With the development of air-conditioning technology, the technology of air-conditioning drainage pumps is gradually being updated.

Regardless of the operating mode of the air conditioner when it was turned off last time, the drainage pump in current operation will be turned off after running for a period of time to drain the residual water in the water receiving tray. However, when the last operating mode was heating and other non-refrigerating and non-dehumidifying modes, the drain pump also runs for a period of time and then shuts down. There is no accumulated water in the water tray. The operation of the drain pump not only causes noise, but also affects the operation of the drain pump. service life.

It can be seen that the control method of the existing air-conditioning drainage pump needs to be further improved.

Contents of the invention

The problem solved by the invention is that the existing drainage pump control method is likely to cause noise and affect the service life.

In order to solve the above problems, the present invention provides a control method for an air conditioner drainage pump, comprising: when the air conditioner is turned on, obtaining the operation mode of the air conditioner when it was turned off last time, and judging whether the operation mode when the air conditioner was turned off last time is cooling or dehumidification mode , if it is not in the cooling or dehumidification mode, control the drainage pump not to turn on, and control the compressor to run; if it is in the cooling or dehumidification mode, control the drainage pump to run for t1 and then turn it off, and control the compressor to run.

The control method of the air conditioner drainage pump according to the present invention effectively solves the problem of whether there is water in the water receiving tray in the prior art by judging the operation mode of the air conditioner when the air conditioner was turned off last time and controlling whether the drainage pump is turned on or not when the air conditioner is turned on. , The drainage pump will be turned on for a period of time to empty the noise and power consumption caused by the accumulated water, and at the same time it can effectively improve the service life of the drainage pump.

When the air conditioner is running, detect the current operating mode of the air conditioner, and judge whether the current operating mode of the air conditioner is cooling or dehumidification mode, if it is not cooling or dehumidification mode, control the drainage pump not to turn on, and control the compressor to run, if it is cooling or dehumidification mode , then detect the water level H of the water receiving tray, and control the operation of the drainage pump and the compressor according to the size of the water level H.

The control method of the air conditioner drainage pump of the present invention ensures that the accumulated water in the water receiving tray will not overflow by detecting the operation mode when the air conditioner is in operation.

When the air conditioner is turned off, detect the operation mode of the air conditioner when it is turned off, and judge whether the operation mode of the air conditioner when it is turned off is the cooling or dehumidification mode, and if it is not the cooling or dehumidification mode, control the drainage pump and the compressor to be turned off simultaneously If it is in cooling or dehumidification mode, the compressor is controlled to be turned off, and the drainage pump is turned off after running for t2; after the drainage pump is turned off, the air conditioner is turned off.

The control method of the air conditioner drainage pump according to the present invention, by detecting the operation mode when the air conditioner is turned off, minimizes the residual water in the water receiving tray, and prevents the residual water from breeding microbial deterioration and affecting human health.

Optionally, the obtaining the operation mode of the air conditioner when it was turned off last time includes: reading the stored information in the memory unit, and determining the operation mode of the air conditioner when it was turned off last time according to the stored information; wherein, the memory unit records The operating mode of the air conditioner every time it is turned off.

The control method of the air conditioner drainage pump according to the present invention, by setting the memory unit to record the operation mode of the air conditioner when it is turned off, and detecting the stored information in the memory unit when the air conditioner is turned on, effectively solves the problem in the prior art regardless of whether there is water in the water tray. When there is accumulated water, the drainage pump will be turned on for a period of time to empty the noise and electricity consumption caused by the accumulated water, and at the same time, it can effectively improve the service life of the drainage pump.

Optionally, the controlling the drain pump to run for t1 includes: controlling the drain pump to run in an acceleration mode; wherein, the t1 is in the range of 40-80s.

The control method of the air conditioner drainage pump in the present invention effectively reduces the noise and power consumption problems caused by the excessively long running time of the drainage pump in the prior art by setting the drainage pump to run in the acceleration mode when the air conditioner is turned on.

Optionally, the controlling the operation of the drainage pump and the compressor according to the water level H includes: when the water level H is less than the water pump opening height L1, controlling the drainage pump not to start, controlling The compressor is running; when the water level H is greater than or equal to the water pump opening height L1 and less than the overflow protection height L2, the drainage pump is controlled to be turned on, and the compressor is controlled to run; when the water level H is greater than or equal to When the water overflow protection height is L2, water overflow protection is performed, the drainage pump is controlled to be turned on, and the compressor is controlled to be turned off.

The control method of the air conditioner drainage pump of the present invention effectively ensures that the accumulated water in the water receiving tray will not overflow by setting the opening height of the water pump and the overflow protection height.

Optionally, when the water level H is greater than or equal to the opening height L1 of the water pump and less than the overflow protection height L2, the compressor is allowed to continue running if a drainage failure occurs.

In the control method of the air conditioner drainage pump according to the present invention, when the water level height H is greater than or equal to the opening height L1 of the water pump and less than the overflow protection height L2, if a drainage failure occurs, the compressor is allowed to continue to run, thereby It can prevent the impact of the shutdown of the compressor on the normal operation of the air conditioner under drainage failure, and effectively guarantee the user experience.

Optionally, the ratio of the opening height L1 of the water pump to the total height L3 of the water receiving tray is less than a, and the a is in the range of 0.1 to 0.2; the ratio of the overflow protection height L2 to the total height L3 of the water receiving tray is less than b, said b is in the range of 0.8 to 0.85.

The control method of the air conditioner drainage pump according to the present invention can ensure that the drainage pump can be opened in time by setting the reasonable position of the water pump opening height L1 and the overflow protection height L2, and that the overflow can be performed in time when the accumulated water in the water receiving tray cannot be discharged in time Protect.

The present invention also provides a control device for an air conditioner drainage pump, comprising: a detection unit for detecting the current operation mode of the air conditioner and the operation mode when the air conditioner is turned off; The operating mode of the air conditioner when it is shut down; the judging unit, the judging unit is used to judge whether the current operating mode of the air conditioner is cooling or dehumidification mode, and is used to judge whether the operating mode of the air conditioner when it was shut down last time is cooling or dehumidification mode; the judging unit is also used to judge the size of the water level height H, the water pump opening height L1, and the overflow protection height L2; the control unit is used to control the drainage pump and the compressor according to the judgment result running.

The control device has the same advantages as the control method of the air-conditioning drainage pump above compared with the prior art, and will not be repeated here.

The present invention also provides an air conditioner, including a computer-readable storage medium storing a computer program and a processor. When the computer program is read and executed by the processor, the method described in any one of the above-mentioned methods can be realized.

Compared with the prior art, the air conditioner has the same advantages as the above-mentioned control method of the air conditioner drainage pump, and will not be repeated here.

The present invention also provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is read and executed by a processor, the control method described in any one of the foregoing is implemented.

The computer-readable storage medium has the same advantages as the above-mentioned method for controlling the drain pump of the air conditioner compared with the prior art, and will not be repeated here.

Description of drawings

Fig. 1 is the flow chart of the control method of the air conditioning drainage pump of the present invention;

Fig. 2 is the flowchart of judging water level height according to the present invention;

Fig. 3 is a schematic diagram of the water level of the water receiving tray of the present invention;

Fig. 4 is a schematic diagram of the control device of the air conditioner drainage pump according to the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the present invention provides a control method for an air conditioner drainage pump, comprising: when the air conditioner is turned on, obtaining the operation mode of the air conditioner when it was shut down last time, and judging whether the operation mode when the air conditioner was turned off last time is cooling or dehumidification If it is not in the cooling or dehumidification mode, control the drainage pump not to open and control the compressor to run; if it is in the cooling or dehumidification mode, control the drainage pump to run for t1 and then turn it off, and then control the compressor to run; when the air conditioner is running, detect the current Operation mode, to determine whether the current operation mode of the air conditioner is cooling or dehumidification mode, if it is not cooling or dehumidification mode, control the drainage pump not to open, control the compressor to run, if it is cooling or dehumidification mode, then detect the water tray The water level height H, controls the operation of the drainage pump and the compressor according to the size of the water level height H; when the air conditioner is turned off, detects the operation mode of the air conditioner when it is turned off, and judges whether the operation mode of the air conditioner when it is turned off is refrigeration or In the dehumidification mode, if it is not a cooling or dehumidification mode, control the drainage pump and the compressor to be turned off at the same time; if it is a cooling or dehumidification mode, control the compressor to be turned off, and the drainage pump will be turned off after running for t2; After the drain pump is turned off, the air conditioner is turned off.

Specifically, when the air conditioner is turned on, it first obtains the operation mode of the air conditioner when it was turned off last time, and judges whether there is residual water in the water tray according to the operation mode when the air conditioner was last turned off. If it is in cooling or dehumidification mode, it can be determined that there is still a small amount of accumulated water in the water receiving tray, and then control the drainage pump to run for t1 to drain the accumulated water in the water receiving tray. If the operating mode of the air conditioner was not cooling or dehumidifying mode when it was turned off last time , the drainage pump will not be turned on, and only the compressor will be controlled. Through this setting, it can effectively solve the noise caused by the prior art that the drainage pump will be turned on for a period of time to empty the water regardless of whether there is water in the water tray. It can effectively improve the service life of the drainage pump at the same time.

When the air conditioner is running, check the current operating mode of the air conditioner. If the current operating mode of the air conditioner is not cooling or dehumidification mode, it means that there is no accumulated water in the water tray, and there is no need to turn on the drain pump. If the current operating mode of the air conditioner is cooling or dehumidification mode , it means that water will accumulate in the water receiving tray. At this time, it is necessary to detect the water level H in the water receiving tray, and judge whether the drainage pump is turned on and whether the compressor is working or not according to the water level H, so as to ensure that the water receiving tray The stagnant water will not overflow.

At the same time, when the air conditioner is turned off in cooling or dehumidification mode, the drain pump and compressor are turned off at the same time, which may easily cause water accumulation in the water tray. Therefore, in this embodiment, when the air conditioner is turned off, the current air conditioner operation mode is detected. If the mode is not cooling or dehumidification mode, it means that there is no accumulated water in the water tray, and there is no need to turn on the drain pump. If the current operation mode is cooling or dehumidification mode, it means that water will accumulate in the water tray, and the compressor is turned off. The drainage pump continues to run for t2 and then shuts off, thereby minimizing the residual water in the water receiving tray and preventing the residual water from breeding microbial deterioration and affecting human health.

The control method of the air conditioner drainage pump according to the present invention effectively solves the problem of whether there is water in the water receiving tray in the prior art by judging the operation mode of the air conditioner when the air conditioner was turned off last time and controlling whether the drainage pump is turned on or not when the air conditioner is turned on. , the drainage pump will be turned on for a period of time to empty the noise and electricity consumption caused by the accumulated water, and at the same time it can effectively improve the service life of the drainage pump; by detecting the operating mode when the air conditioner is running, it is ensured that the accumulated water in the water tray does not It will overflow; by detecting the operation mode when the air conditioner is turned off, the residual water in the water tray is minimized, preventing the residual water from breeding microbial deterioration and affecting human health.

Optionally, the obtaining the operation mode of the air conditioner when it was turned off last time includes: reading the stored information in the memory unit, and determining the operation mode of the air conditioner when it was turned off last time according to the stored information; wherein, the memory unit records The operating mode of the air conditioner every time it is turned off.

Specifically, when the air conditioner is turned on, the operation mode of the air conditioner when it was turned off last time is detected, including reading the stored information in the memory unit, and determining the operation mode of the air conditioner when it was turned off last time according to the stored information, so as to determine whether to turn on the drainage The pump discharges the accumulated water. Correspondingly, each time the air conditioner is turned off, it will record the operating mode of the air conditioner when it is currently turned off and store the information with the operating mode when it is currently turned off in the memory unit, so as to set the mode for the next time the air conditioner is turned on. The detection and judgment leave a basis. In this embodiment, the implementation of the memory unit is as follows: when the air conditioner is turned off, if the current operating mode is cooling or dehumidification mode, the memory unit stores the number "1", if the current operating mode is not cooling or dehumidification mode, the memory unit Store the number "0". When the air conditioner is turned on next time, read the number stored in the memory unit. If it is "1", it is judged that the operation mode is refrigeration or dehumidification mode, and then the drainage pump is controlled to turn off after t1 time, and the compressor is controlled. Running, if it is "0", it is judged that the running mode is not refrigeration or dehumidification mode, then control the drainage pump not to open, and control the compressor to run.

The control method of the air conditioner drainage pump according to the present invention, by setting the memory unit to record the operation mode of the air conditioner when it is turned off, and detecting the stored information in the memory unit when the air conditioner is turned on, effectively solves the problem in the prior art regardless of whether there is water in the water tray. When there is accumulated water, the drainage pump will be turned on for a period of time to empty the noise and electricity consumption caused by the accumulated water, and at the same time, it can effectively improve the service life of the drainage pump.

Optionally, the controlling the drain pump to run for t1 includes: controlling the drain pump to run in an acceleration mode; wherein, the t1 is in the range of 40-80s.

Specifically, when the air conditioner is turned on, the operation mode of the last time the air conditioner was turned off is detected. If it is in the cooling or dehumidification mode, the drainage pump is controlled to run for t1 and then shut down, and the compressor is controlled to run. During this period, the drainage pump adopts the acceleration mode to discharge water. The continuous running time t1 is in the range of 40-80s, preferably 60s, which effectively reduces the problems of noise and electricity consumption compared with the drainage pump that needs to run for three minutes in the prior art.

The method for controlling the drainage pump of the air conditioner of the present invention effectively reduces the noise and power consumption problems caused by the excessive running time of the drainage pump in the prior art by setting the drainage pump to run in the acceleration mode when the air conditioner is turned on.

Optionally, the controlling the operation of the drainage pump and the compressor according to the water level H includes: when the water level H is less than the water pump opening height L1, controlling the drainage pump not to start, controlling The compressor is running; when the water level H is greater than or equal to the water pump opening height L1 and less than the overflow protection height L2, the drainage pump is controlled to be turned on, and the compressor is controlled to run; when the water level H is greater than or equal to When the water overflow protection height is L2, water overflow protection is performed, the drainage pump is controlled to be turned on, and the compressor is controlled to be turned off.

Specifically, as shown in Figure 2 and Figure 3, the operation process of controlling the drainage pump and compressor according to the water level H includes: when the water level H is lower than the water pump opening height L1, it means that there is less water in the water receiving tray at this time , there is no need to turn on the drainage pump, so control the drainage pump not to turn on at this time, and control the compressor to run; as the water level rises, when the water level height H is greater than or equal to the water pump opening height L1 and less than the overflow protection height L2, it means that the water is received at this time The accumulated water in the tray needs to be discharged in time. At this time, the control drain pump is turned on and the compressor continues to run; as the water level rises, when the water level height H is greater than or equal to the overflow protection height L2, it means that the accumulated water cannot be drained in time only by turning on the drain pump. To discharge, the overflow protection function needs to be turned on. At this time, the drainage pump continues to run and the compressor is turned off.

The control method of the air conditioner drainage pump of the present invention effectively ensures that the accumulated water in the water receiving tray will not overflow by setting the opening height of the water pump and the overflow protection height.

Optionally, when the water level H is greater than or equal to the opening height L1 of the water pump and less than the overflow protection height L2, the compressor is allowed to continue running if a drainage failure occurs.

Specifically, as shown in Figure 2 and Figure 3, when the water level H is greater than or equal to the water pump opening height L1 and less than the overflow protection height L2, if there is a drainage failure in the prior art, the compressor will stop running, thereby affecting the user experience. However, the present invention is provided with a water overflow protection height L2, even in the case of a drainage failure, the compressor is still allowed to continue to run, and when the water level height H reaches the water overflow protection height L2, the compressor is turned off, thereby preventing compression under a drainage failure The impact of machine shutdown on the normal operation of the air conditioner can effectively ensure the user's experience.

In the control method of the air conditioner drainage pump according to the present invention, when the water level height H is greater than or equal to the opening height L1 of the water pump and less than the overflow protection height L2, if a drainage failure occurs, the compressor is allowed to continue to run, thereby It can prevent the impact of the shutdown of the compressor on the normal operation of the air conditioner under drainage failure, and effectively guarantee the user experience.

Optionally, the ratio of the opening height L1 of the water pump to the total height L3 of the water receiving tray is less than a, and the a is in the range of 0.1 to 0.2; the ratio of the overflow protection height L2 to the total height L3 of the water receiving tray is less than b, said b is in the range of 0.8 to 0.85.

Specifically, in order to ensure that the drainage pump can be turned on in time, and to perform overflow protection in time when the accumulated water in the water receiving tray cannot be discharged in time, in this embodiment, the ratio of the opening height L1 of the water pump to the total height L3 of the water receiving tray is set to be less than a, and a is in the range of 0.1~0.2, and the ratio of the overflow protection height L2 to the total height of the water receiving tray L3 is smaller than b, and b is in the range of 0.8~0.85, so as to ensure that the drainage pump can be opened in time and the water accumulated in the water receiving tray Water overflow protection shall be carried out in time when the water cannot be discharged in time.

The control method of the air conditioner drainage pump according to the present invention can ensure that the drainage pump can be opened in time by setting the reasonable position of the water pump opening height L1 and the overflow protection height L2, and that the overflow can be performed in time when the accumulated water in the water receiving tray cannot be discharged in time Protect.

Optionally, the t2 is in the range of 20-40s.

Specifically, when the air conditioner is turned off, the current operating mode of the air conditioner is detected, and if it is in cooling or dehumidification mode, the compressor is controlled to be turned off, and the drainage pump is turned off after running for t2, thereby minimizing residual water in the water receiving tray , to prevent residual water from breeding microbial deterioration and affecting human health. Preferably, t2 is 30s.

The control method of the air conditioner drainage pump according to the present invention, by setting t2 in the range of 20 to 40 seconds, minimizes the residual accumulated water in the water receiving tray, and prevents the residual accumulated water from breeding microbial deterioration and affecting human health.

The present invention also provides a control device for an air conditioner drainage pump, comprising: a detection unit for detecting the current operation mode of the air conditioner and the operation mode when the air conditioner is turned off; The operating mode of the air conditioner when it is shut down; the judging unit, the judging unit is used to judge whether the current operating mode of the air conditioner is cooling or dehumidification mode, and is used to judge whether the operating mode of the air conditioner when it was shut down last time is cooling or dehumidification mode; the judging unit is also used to judge the size of the water level height H, the water pump opening height L1, and the overflow protection height L2; the control unit is used to control the drainage pump and the compressor according to the judgment result running.

Specifically, as shown in FIG. 4 , the present invention also provides a control device for an air conditioner drainage pump, which respectively corresponds to each step of the control method; wherein, the control device includes a detection unit, and the detection unit is used to detect the operation mode of the air conditioner, including detecting the air conditioner The current operating mode and reading the stored information in the memory unit are also a part of detecting the operating mode of the air conditioner; the memory unit is used to record the operating mode when the air conditioner is turned off; the judging unit is used to judge whether the operating mode is It is cooling or dehumidification mode, including the current operating mode of the air conditioner and the operating mode when the air conditioner was turned off last time; the judging unit is also used to judge the water level height H, the water pump opening height L1, and the overflow protection height L2, so as to judge the drainage pump and compressor The opening situation of the machine; the control unit is used to control the operation of the drainage pump and the compressor according to the judgment result, which is reflected in controlling whether the drainage pump and the compressor are turned on or not, so as to control the water receiving tray of accumulated water.

The control device has the same advantages as the control method of the air-conditioning drainage pump above compared with the prior art, and will not be repeated here.

The present invention also provides an air conditioner, including a computer-readable storage medium storing a computer program and a processor. When the computer program is read and executed by the processor, the method described in any one of the above-mentioned methods can be realized.

Compared with the prior art, the air conditioner has the same advantages as the above-mentioned control method of the air conditioner drainage pump, and will not be repeated here.

The present invention also provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is read and executed by a processor, the control method described in any one of the foregoing is implemented.

The computer-readable storage medium has the same advantages as the above-mentioned method for controlling the drain pump of the air conditioner compared with the prior art, and will not be repeated here.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be based on the scope defined in the claims.

Claims (11)

1. A control method for an air-conditioning drainage pump, characterized in that, comprising: When the air conditioner is turned on, the operating mode of the air conditioner when it was turned off last time is obtained, and it is judged whether the operating mode of the air conditioner when it was turned off last time is cooling or dehumidification mode. ; If it is in cooling or dehumidification mode, control the drain pump to run for t1 and then shut it down, and then control the compressor to run. 2. The control method according to claim 1, further comprising: When the air conditioner is running, detect the current operating mode of the air conditioner, and judge whether the current operating mode of the air conditioner is cooling or dehumidification mode, if it is not cooling or dehumidification mode, control the drainage pump not to open, and control the compressor to run, if it is cooling or dehumidification mode , then detect the water level H of the water receiving tray, and control the operation of the drainage pump and the compressor according to the size of the water level H. 3. The control method according to claim 1, further comprising: When the air conditioner is turned off, detect the operation mode of the air conditioner when it is turned off, and judge whether the operation mode of the air conditioner when it is turned off is the cooling or dehumidification mode, and if it is not the cooling or dehumidification mode, control the drainage pump and the compressor to be turned off simultaneously If it is in cooling or dehumidification mode, the compressor is controlled to be turned off, and the drainage pump is turned off after running for t2; After the drain pump is turned off, the air conditioner is turned off. 4. The control method according to claim 1, wherein said obtaining the operation mode of the air conditioner when it was shut down last time comprises: Read the stored information in the memory unit, and determine the operating mode of the air conditioner when it was shut down last time according to the stored information; Wherein, the memory unit records the operation mode of the air conditioner each time it is turned off. 5. The control method according to claim 1, characterized in that, the control of the drain pump running time t1 comprises: controlling the drain pump to operate in an acceleration mode; Wherein, the t1 is in the range of 40-80s. 6. The control method according to claim 2, wherein the controlling the operation of the drainage pump and the compressor according to the size of the water level H comprises: When the water level height H is less than the water pump opening height L1, the drainage pump is controlled not to be opened, and the compressor is controlled to run; When the water level height H is greater than or equal to the opening height L1 of the water pump and less than the overflow protection height L2, the drainage pump is controlled to be turned on, and the compressor is controlled to run; When the water level height H is greater than or equal to the overflow protection height L2, overflow protection is performed, the drainage pump is controlled to be turned on, and the compressor is controlled to be turned off. 7. The control method according to claim 6, wherein when the water level height H is greater than or equal to the opening height L1 of the water pump and less than the overflow protection height L2, if a drainage failure occurs, the compressor is allowed to keep running. 8. The control method according to claim 6, wherein the ratio of the opening height L1 of the water pump to the total height L3 of the water receiving tray is less than a, and the a is in the range of 0.1-0.2; The ratio of the overflow protection height L2 to the total height L3 of the water receiving tray is smaller than b, and the b is in the range of 0.8-0.85. 9. A control device for an air-conditioning drainage pump, characterized in that it comprises: A detection unit, the detection unit is used to detect the current operating mode of the air conditioner and the operating mode when the air conditioner is turned off; A memory unit, the memory unit is used to record the operation mode of the air conditioner when the air conditioner is turned off every time; A judging unit, the judging unit is used to judge whether the current operation mode of the air conditioner is cooling or dehumidification mode, and is used to judge whether the operation mode when the air conditioner was shut down last time is cooling or dehumidification mode; The judging unit is also used to judge the size of the water level height H, the water pump opening height L1, and the overflow protection height L2; A control unit, configured to control the operation of the drainage pump and the compressor according to the judgment result. 10. An air conditioner, characterized in that it includes a computer-readable storage medium and a processor storing a computer program, and when the computer program is read and run by the processor, the computer program according to any one of claims 1-8 can be realized. control method described in the item. 11. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and when the computer program is read and run by a processor, the computer program according to any one of claims 1-8 is implemented. the control method described above.