Air conditioner, control method thereof, and computer readable storage medium

Abstract

The application discloses an air conditioner and a control method and a computer readable storage medium thereof. The method comprises the following steps: detecting the water level of the water pan of the indoor unit of the air conditioner during the operation of the air conditioner; when the water level of the water pan is greater than or equal to a first preset water level, adjusting the operation parameter of the air conditioner to reduce the water discharged into the water pan; wherein the operation parameter comprises the operation frequency of the compressor and / or the rotating speed of the indoor fan. The application aims to reduce the risk of water bubble of the air conditioner.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to air conditioners and their control methods, as well as computer-readable storage media. Background Technology

[0002] With the development of economy and technology, air conditioners are being used more and more widely, and their functions are becoming more and more diversified. When the indoor unit of an air conditioner is installed without setting an installation tilt angle or with an insufficient tilt angle, drainage problems can easily occur, leading to water accumulation in the indoor unit. The water may overflow and form bubbles on the ceiling before the water accumulation is noticed, resulting in long-term water damage to the air conditioner. Summary of the Invention

[0003] The main objective of this invention is to provide a control method for an air conditioner, an air conditioner, and a computer-readable storage medium, with the aim of reducing the risk of water damage to the air conditioner.

[0004] To achieve the above objectives, the present invention provides a control method for an air conditioner, the control method comprising the following steps:

[0005] During the operation of the air conditioner, the water level in the drain pan of the indoor unit of the air conditioner is detected;

[0006] When the water level in the drip tray is greater than or equal to a first preset water level, the operating parameters of the air conditioner are adjusted to reduce the amount of water discharged into the drip tray; wherein, the operating parameters include the compressor operating frequency and / or the indoor fan speed.

[0007] Optionally, the step of adjusting the operating parameters of the air conditioner includes at least one of the following:

[0008] Reduce the operating frequency of the compressor;

[0009] Increase the rotational speed of the indoor fan.

[0010] Optionally, the step of reducing the operating frequency of the compressor in the indoor unit includes:

[0011] The compressor operating frequency is reduced once every preset time interval until the water level in the indoor unit's drip tray is detected to be lower than a second preset water level, wherein the second preset water level is less than or equal to the first preset water level.

[0012] Optionally, after the step of adjusting the operating parameters of the air conditioner to reduce the water discharged into the drain pan, the method further includes:

[0013] When the water level in the drain pan of the indoor unit of the air conditioner is detected to be lower than the second preset water level, the air conditioner is restored to the state before the operating parameters were adjusted.

[0014] Optionally, after the step of restoring the air conditioner to its state before the operating parameters were adjusted, the method further includes:

[0015] When the water level in the water tray of the indoor unit of the air conditioner is detected to be lower than the second preset water level, the total adjustment time of the operating parameters of the air conditioner is obtained;

[0016] When the total adjustment duration is greater than or equal to the preset duration, a preset operation is performed, which includes outputting a fault prompt and / or controlling the air conditioner to stop running.

[0017] If the total adjustment time is less than the preset time, the step of restoring the air conditioner to the state before the adjustment of the operating parameters is performed.

[0018] Optionally, after performing the step of restoring the air conditioner to the state before the operating parameter adjustment, the method includes:

[0019] When the total adjustment time is less than the preset time, update the number of times the air conditioner's operating parameters are adjusted;

[0020] When the number of adjustments is greater than or equal to the preset number, the target indoor heat exchanger temperature of the air conditioner is increased, and the air conditioner is controlled to operate according to the increased target indoor heat exchanger temperature.

[0021] Optionally, the step of increasing the target indoor heat exchanger temperature of the air conditioner includes:

[0022] Obtain the actual indoor heat exchanger temperature of the air conditioner and the preset allowable deviation range of the indoor heat exchanger temperature;

[0023] The increase in the target indoor heat exchanger temperature of the air conditioner is determined based on the actual indoor heat exchanger temperature and the preset allowable deviation range of the indoor heat exchanger temperature.

[0024] The target indoor heat exchanger temperature of the air conditioner is increased according to the increase in quantity.

[0025] Optionally, before the step of adjusting the operating parameters of the air conditioner, the method further includes:

[0026] When the indoor unit of the air conditioner is equipped with a water pump, the water pump is turned on; wherein, the adjustment amount of the operating parameters of the air conditioner equipped with a water pump in the indoor unit is less than the adjustment amount of the operating parameters of the air conditioner without a water pump in the indoor unit.

[0027] In addition, to achieve the above objectives, the present invention also proposes an air conditioner, the air conditioner comprising: a memory, a processor, and a control program for the air conditioner stored in the memory and executable on the processor, wherein when the control program for the air conditioner is executed by the processor, it implements the steps of the control method for the air conditioner as described in any of the preceding claims.

[0028] Furthermore, in order to achieve the above objectives, the present invention also proposes a computer-readable storage medium storing a control program for an air conditioner, wherein the control program for the air conditioner, when executed by a processor, implements the steps of the control method for the air conditioner as described in any of the preceding claims.

[0029] The present invention proposes an air conditioner and its control method, as well as a computer-readable storage medium. During the operation of the air conditioner, the water level in the water tray of the indoor unit of the air conditioner is detected. When the water level in the water tray is greater than or equal to a first preset water level, the water level in the water tray of the indoor unit of the air conditioner is high. If the water in the water tray is not treated, there may be a risk of the air conditioner being submerged or flooded for a long time. In this embodiment, the operating parameters of the air conditioner are adjusted to reduce the amount of water discharged into the drip tray. These operating parameters include at least one of the compressor operating frequency and the indoor fan speed. By adjusting the compressor operating frequency or the indoor fan speed, the temperature of the indoor heat exchanger is increased, reducing the amount of condensate produced by the indoor heat exchanger. This further prevents excessive condensate from being discharged into the drip tray. By judging the water level in the drip tray, the risk of water immersion and flooding of the air conditioner can be accurately monitored. When there is a risk of water immersion or flooding, the operating parameters of the air conditioner are adjusted in a timely manner to reduce the amount of water entering the drip tray, thereby preventing water accumulation in the indoor unit and thus preventing water immersion and damage to the air conditioner. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the device structure involved in the operation of an embodiment of the air conditioner of the present invention;

[0031] Figure 2 This is a flowchart illustrating the first embodiment of the control method for an air conditioner according to the present invention;

[0032] Figure 3 This is a flowchart illustrating the second embodiment of the control method for an air conditioner according to the present invention;

[0033] Figure 4 This is a flowchart illustrating the third embodiment of the control method for the air conditioner of the present invention.

[0034] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0036] The main solution of this invention is: during the operation of the air conditioner, the water level in the water tray of the indoor unit of the air conditioner is detected; when the water level in the water tray is greater than or equal to a first preset water level, the operating parameters of the air conditioner are adjusted to reduce the water discharged into the water tray; wherein, the operating parameters include at least one of the compressor operating frequency and the indoor fan speed.

[0037] In related technologies, air conditioners are generally installed at a certain tilt angle when the indoor unit is installed. However, if the tilt angle is too small or there is too much water in the drip tray of the indoor unit, the indoor unit will not drain properly, resulting in water accumulation and damage to the air conditioner due to water damage.

[0038] The present invention provides the above-mentioned solution, which aims to reduce the risk of air conditioners being submerged in water.

[0039] This invention provides a hardware system or terminal related to a control method for an air conditioner. The hardware terminal can be any type of air conditioner, such as a wall-mounted air conditioner, cabinet air conditioner, portable air conditioner, window air conditioner, multi-split air conditioner, or ceiling-mounted air conditioner.

[0040] In this embodiment of the invention, reference is made to Figure 1 The air conditioner includes: a processor 1001 (e.g., a CPU (central processing unit)), a timer 1002, and a memory 1003. The memory 1003 can be high-speed RAM or non-volatile memory, such as disk storage. Optionally, the memory 1003 can also be a storage device independent of the aforementioned processor 1001. For example, the processor 1001 includes an indoor control module 13 and an outdoor control module 24.

[0041] Those skilled in the art will understand that Figure 1 The device structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0042] like Figure 1 As shown, the memory 1003, which is a computer-readable storage medium, may include a control program for an air conditioner. Figure 1 In the device shown, the processor 1001 can be used to call the control program of the air conditioner stored in the memory 1003 and execute the relevant steps of the control method of the air conditioner in the following embodiments.

[0043] This invention also provides a control method for an air conditioner, applied to the aforementioned air conditioner.

[0044] Reference Figure 2 This invention provides a first embodiment of the control method for an air conditioner. In this embodiment, the control method for the air conditioner includes:

[0045] Step S10: During the operation of the air conditioner, the water level in the water tray of the indoor unit of the air conditioner is detected;

[0046] This invention can be implemented in an air conditioner or in the control terminal of an air conditioner. This embodiment is described using an air conditioner as an example.

[0047] In this embodiment, during the operation of the air conditioner, when the cooling mode is turned on, the temperature of the indoor heat exchanger of the air conditioner is low. Water vapor in the environment where the indoor unit of the air conditioner is located liquefies into small water droplets after encountering the cold indoor heat exchanger, forming condensate on the surface of the indoor heat exchanger. The condensate is collected by a water collection pan installed below the indoor heat exchanger, so that the condensate can be discharged to the outside through a drain pipe connected to the water collection pan.

[0048] It is understandable that during the operation of an air conditioner, when the cooling mode is turned on, condensate accumulates in the drip tray of the indoor unit. Excessive water accumulation in the drip tray can increase the risk of water accumulation in the indoor unit. Therefore, by monitoring the water level in the drip tray of the indoor unit in real time, the risk of excessive water accumulation in the drip tray can be avoided.

[0049] Step S20: When the water level in the drip tray is greater than or equal to the first preset water level, adjust the operating parameters of the air conditioner to reduce the water discharged into the drip tray; wherein, the operating parameters include at least one of the compressor operating frequency and the indoor fan speed.

[0050] Based on this, this embodiment detects the water level in the indoor unit's drip tray in real time or at regular intervals during the operation of the air conditioner, and monitors whether the water level in the drip tray is too high in real time or at regular intervals.

[0051] Optionally, the method for detecting the water level in the drip tray of the indoor unit of the air conditioner in this embodiment includes at least one of the following:

[0052] In one embodiment, a water level sensor is installed on the water receiving tray to detect the water level in the tray. Optionally, the water level sensor is connected to the controller of the air conditioner. When the water level sensor detects that the water level in the receiving tray has reached a first preset water level, it sends a signal to the controller, and the controller determines that the water level in the receiving tray is greater than or equal to the first preset water level based on the signal.

[0053] In another embodiment, a water level switch is provided in the water receiving tray. The water level switch includes a moving contact and a fixed contact. The moving contact can float with the water. When the moving contact is in contact with the fixed contact, the water level switch is turned on, and the controller receives the turn-on signal of the water level switch. When the moving contact is separated from the fixed contact, the water level switch is turned off, and the controller receives the turn-off signal of the water level switch.

[0054] In this embodiment, the air conditioner determines whether the water level in the receiving tray has reached a first preset water level based on the on / off signal of the water level switch. For example, in one embodiment, when the fixed contact is at the first preset water level, the air conditioner determines that the water level in the receiving tray has reached the first preset water level when it receives the on signal from the water level switch. In another embodiment, when the fixed contact is below the first preset water level, the air conditioner determines that the water level in the receiving tray has reached the first preset water level when it receives the off signal from the water level switch.

[0055] Optionally, the first preset water level is a critical value of the water level in the water receiving pan where there is a risk of excessive water accumulation.

[0056] Thus, the system detects whether the water level in the drip tray is greater than or equal to a preset first water level. If the water level in the drip tray is greater than or equal to the first preset water level, it is determined that there is a risk of excessive water accumulation in the drip tray, and the operating parameters of the air conditioner are adjusted to reduce the water discharged into the drip tray. If the water level in the drip tray is less than the first preset water level, it is determined that there is no risk of excessive water accumulation in the drip tray, and the air conditioner is controlled to operate at the current operating parameters. This achieves the goal of increasing the temperature of the indoor heat exchanger by adjusting the operating parameters of the air conditioner when there is a risk of excessive water accumulation in the drip tray of the indoor unit, reducing the condensate generated by water vapor liquefaction, and further avoiding the risk of excessive condensate accumulating in the drip tray, which could lead to water damage to the air conditioner and the ceiling of the room where the air conditioner is located.

[0057] Optionally, in one embodiment, when the indoor unit of the air conditioner is equipped with a water pump, the water pump is turned on; wherein, the adjustment amount of the operating parameters of the air conditioner equipped with a water pump in the indoor unit is less than the adjustment amount of the operating parameters of the air conditioner without a water pump in the indoor unit.

[0058] It is understandable that when the indoor unit of an air conditioner is equipped with a water pump, when the water level in the drip tray is greater than or equal to the first preset water level, the water pump draws water from the drip tray while the operating parameters of the air conditioner are adjusted to reduce the amount of condensate discharged into the drip tray, thus removing the accumulated water in the drip tray. Compared to an air conditioner without a water pump in the indoor unit, the efficiency of removing the accumulated water in the drip tray is higher when only the operating parameters of the air conditioner are adjusted to reduce the amount of condensate discharged into the drip tray. Therefore, the adjustment amount of the operating parameters of an air conditioner with a water pump in the indoor unit is less than that of an air conditioner without a water pump in the indoor unit.

[0059] Thus, when the indoor unit of the air conditioner is equipped with a water pump, the water pump is turned on, and the water level in the drip tray of the indoor unit is detected. If the water level in the drip tray is still greater than or equal to the first preset water level, the operating parameters of the air conditioner are adjusted to further reduce the condensate discharged into the drip tray. By pumping out the water accumulated in the drip tray of the indoor unit and adjusting the operating parameters of the air conditioner to prevent the water accumulation in the drip tray from increasing, this overcomes the technical defect that when the indoor unit is installed at an inclined angle and the water in the drip tray is drained by gravity alone, excessive water accumulation may occur, resulting in the air conditioner being flooded. This improves the efficiency of draining water from the drip tray and further reduces the risk of the air conditioner being flooded.

[0060] Optionally, by adjusting the compressor operating frequency and / or adjusting the indoor fan speed, the temperature of the indoor heat exchanger can be increased, further reducing the condensate on the surface of the indoor heat exchanger, thereby reducing the amount of water drained into the drip tray.

[0061] Optionally, in one embodiment, the temperature of the indoor heat exchanger is increased by reducing the compressor operating frequency, thereby reducing the amount of refrigerant processed by the compressor per unit time, and / or the temperature of the indoor heat exchanger is increased by increasing the speed of the indoor fan, thereby increasing the heat exchange between the indoor heat exchanger and the indoor environment where the indoor unit is located.

[0062] Optionally, in a further embodiment, the compressor operating frequency is reduced once every preset time interval until the water level in the indoor unit's drip tray is detected to be lower than a second preset water level, wherein the second preset water level is less than or equal to the first preset water level.

[0063] In this embodiment, the preset time interval is a preset time interval for reducing the operating frequency of the compressor, which can be 10 seconds, 20 seconds, or 30 seconds; the second preset water level is a preset critical value of the water level in the water receiving pan to eliminate the risk of excessive water accumulation.

[0064] Optionally, in one embodiment, a reduction value for decreasing the compressor operating frequency is determined based on the difference between the water level in the indoor unit's drip tray and the second preset water level, as well as the difference between the set temperature of the air conditioner and the indoor ambient temperature. The compressor operating frequency is then reduced based on this reduction value. For example, when the reduction value is 10, the compressor operating frequency is reduced by 10. By adjusting the reduction value of the compressor operating frequency based on the difference between the indoor ambient temperature and the set temperature, the impact of reducing the compressor operating frequency on indoor comfort is reduced. This reduces the amount of condensate drained into the drip tray while avoiding excessive reduction of the compressor operating frequency that could lead to poor indoor comfort.

[0065] Optionally, in another embodiment, the reduction value for decreasing the compressor operating frequency is determined based on the difference between the water level in the indoor unit's drip tray and the second preset water level, as well as the difference between the set temperature of the air conditioner and the indoor ambient temperature. The compressor operating frequency is reduced once every preset time interval according to this reduction value, until the water level in the indoor unit's drip tray is detected to be lower than the second preset water level. For example, when the preset time interval is 10 seconds and the reduction value is 10, the compressor operating frequency is reduced by 10 every 10 seconds. The reduction value for the compressor operating frequency is determined based on the difference between the indoor ambient temperature and the set temperature, as well as the difference between the water level in the drip tray and the second preset water level. This allows for a small, multiple reduction of the compressor operating frequency, avoiding the poor indoor comfort that would result from a single, direct reduction of the compressor frequency.

[0066] Optionally, in another embodiment, a reduction value for decreasing the compressor operating frequency is determined based on a first water level difference between the indoor unit's drip tray level and a second preset water level, and a first difference between the air conditioner's set temperature and the indoor ambient temperature where the indoor unit is located. After a first preset time interval, the compressor operating frequency is reduced once based on the reduction value. An adjustment value for the reduction value is determined based on a second difference between the air conditioner's set temperature and the indoor ambient temperature where the indoor unit is located, and a second water level difference between the indoor unit's drip tray level and the second preset water level. The reduction value is adjusted based on the adjustment value. After a second preset time interval, the compressor operating frequency is reduced once based on the adjusted reduction value. The process then returns to executing the process based on the air conditioner's set temperature and the indoor ambient temperature where the indoor unit is located. The process involves determining the adjustment value for the reduction value based on the second difference between the indoor ambient temperature and the set temperature, and the second water level difference between the indoor unit's water tray and the second preset water level. This process continues until the water level in the indoor unit's water tray is detected to be lower than the second preset water level. For example, when the reduction value is 10, the preset time interval is 10 seconds, and the adjustment value is +1, the compressor operating frequency decreases by 10 at the 10th second and by 11 at the 20th second. Each time the compressor operating frequency is reduced, the difference between the indoor ambient temperature and the set temperature, as well as the water level difference between the water tray and the second preset water level, are obtained in real time. The adjustment value corresponding to the reduction value of the compressor operating frequency is then adjusted multiple times to further reduce the impact of reducing the compressor operating frequency on indoor comfort.

[0067] The method for detecting the water level in the drip tray of the indoor unit of the air conditioner in this embodiment includes at least one of the following:

[0068] In one embodiment, a water level sensor is installed on the water receiving tray to detect the water level in the tray. Optionally, the water level sensor is connected to the controller of the air conditioner. When the water level sensor detects that the water level in the receiving tray is lower than a second preset water level, it sends a signal to the controller, and the controller determines that the water level in the receiving tray is lower than the second preset water level based on the signal.

[0069] In another embodiment, a water level switch is provided in the water receiving tray. The water level switch includes a moving contact and a fixed contact. The moving contact can float with the water. When the moving contact is in contact with the fixed contact, the water level switch is turned on, and the controller receives the turn-on signal of the water level switch. When the moving contact is separated from the fixed contact, the water level switch is turned off, and the controller receives the turn-off signal of the water level switch.

[0070] In this embodiment, the air conditioner determines whether the water level in the water receiving tray is lower than a second preset water level by the on / off signal of the water level switch. For example, in one embodiment, when the fixed contact is lower than the position of the second preset water level, the air conditioner determines that the water level in the water receiving tray is lower than the second preset water level when it receives the on / off signal of the water level switch.

[0071] Optionally, the second preset water level is a critical value for the water level in the water receiving pan that eliminates the risk of excessive water accumulation.

[0072] Thus, during air conditioner operation, the water level in the indoor unit's drip tray is monitored. When the water level is greater than or equal to a first preset level, the water level in the drip tray is high. If the water in the drip tray is not treated, there is a risk of the air conditioner being submerged or flooded for a long time. In this embodiment, the operating parameters of the air conditioner are adjusted to reduce the amount of water discharged into the drip tray. The operating parameters include at least one of the compressor operating frequency and the indoor fan speed. By adjusting the compressor operating frequency or the indoor fan speed, the temperature of the indoor heat exchanger is increased, reducing the condensate produced by the indoor heat exchanger, further preventing excessive condensate from being discharged into the drip tray. This achieves precise monitoring of the risk of water submersion and flooding of the air conditioner by judging the water level in the drip tray. When there is a risk of water submersion or flooding, the operating parameters of the air conditioner are adjusted in time to reduce the amount of water discharged into the drip tray, thereby preventing water accumulation in the indoor unit and thus preventing the air conditioner from being submerged and damaged due to water accumulation in the indoor unit.

[0073] Reference Figure 3 Based on the first embodiment described above, a second embodiment of the air conditioner control method is proposed. In this embodiment, after step S20, the method further includes:

[0074] Step S30: Detect whether the water level in the water tray of the indoor unit of the air conditioner is lower than the second preset water level;

[0075] If so, that is, when it is detected that the water level in the water tray of the indoor unit of the air conditioner is lower than the second preset water level, step S40 is executed to restore the air conditioner to the state before the operating parameters were adjusted;

[0076] If not, that is, when the water level in the water tray of the indoor unit of the air conditioner is detected to be greater than or equal to the second preset water level, step S20 is executed.

[0077] Optionally, in one embodiment, when the water level in the water tray of the indoor unit of the air conditioner is detected to be lower than a second preset water level, the air conditioner is controlled to operate with adjusted operating parameters.

[0078] Alternatively, in another embodiment, when the water level in the drain pan of the indoor unit of the air conditioner is detected to be lower than a second preset water level, the air conditioner is controlled to operate with the initial operating parameters before the operating parameters are adjusted.

[0079] Optionally, in another embodiment, when the water level in the water tray of the indoor unit of the air conditioner is detected to be lower than a second preset water level, the target indoor heat exchanger temperature of the air conditioner is obtained, and the air conditioner is controlled to operate at the target indoor heat exchanger temperature.

[0080] It is understood that in cooling mode, the target indoor heat exchanger temperature is the target evaporation temperature, and in heating mode, the target indoor heat exchanger temperature is the target condensation temperature. In some embodiments, the target indoor heat exchanger temperature may be the same as or different from the set temperature.

[0081] Thus, adjusting the air conditioner's operating parameters can easily cause the indoor heat exchanger to overheat, leading to excessively high indoor temperatures and decreased indoor comfort. Therefore, when the water level in the drip tray is detected to be lower than the second preset level, i.e., when the risk of excessive water accumulation in the drip tray is eliminated, the air conditioner is promptly restored to its state before the operating parameters were adjusted. This avoids the technical defect of the indoor heat exchanger overheating due to failure to restore the air conditioner's operating parameters in time, resulting in poor indoor comfort. This ensures that the air conditioner can still meet indoor comfort requirements after resolving the risk of water damage to the indoor unit, thus optimizing the air conditioner's functional performance.

[0082] Reference Figure 4 Based on the first or second embodiment described above, a third embodiment of the air conditioner control method is proposed. In this embodiment, after step S40, the method further includes:

[0083] When the water level in the water tray of the indoor unit of the air conditioner is detected to be lower than the second preset water level, step S50 is executed to obtain the total adjustment time of the operating parameters of the air conditioner.

[0084] Step S60: Determine whether the total adjustment time is greater than or equal to the preset time.

[0085] If so, that is, when the total adjustment duration is greater than or equal to the preset duration, step S70 is executed to perform a preset operation, which includes outputting a fault prompt and / or controlling the air conditioner to stop running;

[0086] If not, that is, if the total adjustment time is less than the preset time, return to step S40.

[0087] In this embodiment, the preset duration is a preset critical value for adjusting the operating parameters when the air conditioner's operation status for handling excessive water accumulation in the water tray is normal.

[0088] Optionally, in one embodiment, a first time point when the water level in the drip tray is detected to be greater than or equal to a first preset water level is obtained, and a second time point when the water level in the drip tray is detected to be greater than or equal to the first preset water level is obtained. The total adjustment time of the air conditioner's operating parameters is obtained based on the time difference between the first time point and the second time point.

[0089] Optionally, in another embodiment, the number of times the operating parameters of the air conditioner are adjusted when the water level in the water tray is detected to be greater than or equal to a first preset water level is obtained, and the total adjustment time of the operating parameters of the air conditioner is determined based on the product of the number of adjustments and the preset time interval for adjusting the operating parameters.

[0090] It is understood that, in one embodiment, when the indoor unit of the air conditioner is equipped with a water pump, the water in the drip tray is extracted by the water pump, and the operating parameters of the air conditioner are adjusted to reduce the amount of condensate discharged into the drip tray, thereby removing the water accumulated in the drip tray. Compared with an air conditioner without a water pump, the efficiency of removing water accumulated in the drip tray is higher when only the operating parameters of the air conditioner are adjusted to reduce the amount of condensate discharged into the drip tray. Therefore, the adjustment time for adjusting the operating parameters to properly handle the problem of excessive water accumulation in the drip tray is shorter for an air conditioner with a water pump, that is, the preset time for an air conditioner with a water pump is shorter than the preset time for an air conditioner without a water pump.

[0091] Optionally, the step of outputting the fault indication includes one of the following methods:

[0092] Method 1: Control the indicator light on the indoor unit of the air conditioner to light up.

[0093] Method 2: Control the indoor unit of the air conditioner to issue a fault alarm.

[0094] Method 3: Control the air conditioner to send fault information to the remote control. When the remote control receives the fault information, it will display the fault information on the remote control's display screen.

[0095] In this way, by judging the total adjustment time of the air conditioner's operating parameters, the air conditioner's ability to handle water accumulation in the drip tray can be monitored in real time. When the total adjustment time is greater than or equal to the preset time, the air conditioner's ability to handle water accumulation in the drip tray is low, and the air conditioner is controlled to stop running and / or output a fault prompt. This allows users to inspect the air conditioner when they observe the above operation, thereby ensuring that the air conditioner's ability to handle water accumulation in the drip tray is always within the normal range during operation, thus reducing the risk of the air conditioner being flooded.

[0096] Optionally, in some embodiments, after returning to execute step S40, when the total adjustment time is less than the preset time, the number of adjustments to the air conditioner's operating parameters is updated; when the number of adjustments is greater than or equal to the preset number, the target indoor heat exchanger temperature of the air conditioner is increased, and the air conditioner is controlled to operate according to the increased target indoor heat exchanger temperature.

[0097] In this embodiment, the preset number of times is a preset threshold value for the number of times the operating parameters are adjusted, which is considered to be relatively large. The preset number of times can be 3 times or 5 times.

[0098] Optionally, in one embodiment, when the total adjustment time is less than the preset time, the number of times the air conditioner's operating parameters are adjusted is obtained; it is determined whether the number of adjustments is greater than or equal to the preset number; if the number of adjustments is greater than or equal to the preset number, it is determined that the frequency of excessive water accumulation in the indoor unit's drip tray is high, and the target indoor heat exchanger temperature of the air conditioner is increased, and the air conditioner is controlled to operate according to the increased target indoor heat exchanger temperature; if the number of adjustments is less than the preset number, it is determined that the frequency of excessive water accumulation in the indoor unit's drip tray is low, and the air conditioner is controlled to operate at the target indoor heat exchanger temperature. By judging the number of adjustments to the air conditioner's operating parameters, the frequency of excessive water accumulation in the drip tray is monitored, so that when the frequency is high, the temperature of the target indoor heat exchanger is further increased to reduce condensate, thereby reducing the amount of water entering the drip tray, avoiding excessive water accumulation in the drip tray when the initial target indoor heat exchanger temperature is still used, thereby avoiding water accumulation in the indoor unit of the air conditioner.

[0099] Optionally, the increase in the target indoor heat exchanger temperature can be a preset increase, such as the increase determined according to the operating mode or the operating scenario mode.

[0100] Alternatively, the increase in the target indoor heat exchanger temperature can be calculated in real time based on the allowable deviation of the indoor heat exchanger temperature:

[0101] For example, when the number of times the compressor operating frequency is adjusted is greater than or equal to a preset number, the actual indoor heat exchanger temperature of the air conditioner and the preset indoor heat exchanger temperature operating deviation range are obtained; in one embodiment, a reference value within the preset indoor heat exchanger temperature operating deviation range is obtained, and the increase in the target indoor heat exchanger temperature is determined based on the difference between the actual indoor heat exchanger temperature and the reference value; then the target indoor heat exchanger temperature is increased based on the increase.

[0102] In this embodiment, the reference value can be the maximum value of the preset indoor heat exchanger temperature operating deviation range, the minimum value of the preset indoor heat exchanger temperature operating deviation range, or any value within the preset indoor heat exchanger temperature operating deviation range.

[0103] Thus, the actual indoor heat exchanger temperature of the air conditioner and the preset indoor heat exchanger temperature operating deviation range are obtained; based on the difference between the reference value in the preset indoor heat exchanger temperature operating deviation range and the actual indoor heat exchanger temperature, the increase in the target indoor heat exchanger temperature of the air conditioner is determined; based on the increase, the target indoor heat exchanger temperature of the air conditioner is increased, which appropriately reduces the impact of increasing the target indoor heat exchanger temperature on indoor comfort, so that the air conditioner can balance ensuring indoor comfort and solving the problem of excessive water accumulation in the drip tray, thereby meeting indoor comfort after solving the risk of water immersion in the indoor unit, and optimizing the functional effect of the air conditioner.

[0104] Furthermore, this invention also proposes a computer-readable storage medium storing a control program for an air conditioner. When the control program is executed by a processor, it implements the relevant steps of any of the above-described air conditioner control methods.

[0105] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0106] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0107] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0108] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A control method of an air conditioner, characterized by, The control method of the air conditioner comprises the following steps: During operation of the air conditioner, detecting a water level of a water pan of an indoor unit of the air conditioner; When the water level of the water pan is greater than or equal to a first preset water level, adjusting an operating parameter of the air conditioner to reduce water discharged into the water pan; wherein the operating parameter comprises a compressor operating frequency and / or a rotating speed of an indoor fan; When it is detected that the water level of the water pan of the indoor unit of the air conditioner is less than a second preset water level, restoring the air conditioner to before the adjustment of the operating parameter; After the step of restoring the air conditioner to before the adjustment of the operating parameter, further comprising: When it is detected that the water level of the water pan of the indoor unit of the air conditioner is less than the second preset water level, obtaining an adjustment total duration of the operating parameter of the air conditioner; When the adjustment total duration is greater than or equal to a preset duration, performing a preset operation, the preset operation comprising outputting a fault prompt and / or controlling the air conditioner to stop operation; When the adjustment total duration is less than the preset duration, performing the step of restoring the air conditioner to before the adjustment of the operating parameter; After the step of restoring the air conditioner to before the adjustment of the operating parameter, comprising: When the adjustment total duration is less than the preset duration, updating an adjustment frequency of the operating parameter of the air conditioner; When the adjustment frequency is greater than or equal to a preset frequency, increasing a target indoor heat exchanger temperature of the air conditioner, and controlling the air conditioner to operate according to the increased target indoor heat exchanger temperature.

2. The control method of the air conditioner according to claim 1, wherein The step of adjusting the operating parameter of the air conditioner comprises at least one of: reducing the compressor operating frequency; increasing the rotating speed of the indoor fan.

3. The control method of the air conditioner according to claim 2, wherein The step of reducing the compressor operating frequency comprises: reducing the compressor operating frequency every preset time interval until it is detected that the water level of the water pan of the indoor unit is less than a second preset water level, the second preset water level being less than or equal to the first preset water level.

4. The control method of the air conditioner according to claim 1, wherein The step of increasing the target indoor heat exchanger temperature of the air conditioner comprises: obtaining an actual indoor heat exchanger temperature of the air conditioner and a preset indoor heat exchanger temperature allowable deviation range; determining an increasing amount of the target indoor heat exchanger temperature of the air conditioner according to the actual indoor heat exchanger temperature and the preset indoor heat exchanger temperature allowable deviation range; increasing the target indoor heat exchanger temperature of the air conditioner according to the increasing amount.

5. The control method of an air conditioner according to any one of claims 1 to 4, characterized in that, Before the step of adjusting the operating parameter of the air conditioner, further comprising: when the indoor unit of the air conditioner is equipped with a water pump, starting the water pump; wherein an adjustment amount of the operating parameter of the air conditioner equipped with the water pump in the indoor unit is less than an adjustment amount of the operating parameter of the air conditioner not equipped with the water pump in the indoor unit.

6. An air conditioner characterized by comprising: The air conditioner comprises a memory, a processor, and a control program of the air conditioner stored in the memory and executable on the processor, and the control program of the air conditioner, when executed by the processor, implements the steps of the control method of the air conditioner according to any one of claims 1 to 5.

7. A computer readable storage medium characterized in that, The computer readable storage medium stores a control program of an air conditioner, and the control program of the air conditioner, when executed by a processor, implements the steps of the control method of the air conditioner according to any one of claims 1 to 5.

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