Drainage pump and control method therefor, and controller, air conditioner and storage medium

Abstract

Provided in the embodiments of the present application are a drainage pump and a control method therefor, and a controller, an air conditioner and a storage medium. The control method for a drainage pump comprises: detecting a first power supply parameter of a drainage pump in the current state (S110); determining a corresponding full-load power supply parameter and a corresponding no-load power supply parameter on the basis of the current state (S120); and when the first power supply parameter is less than the full-load power supply parameter and is greater than the no-load power supply parameter, adjusting the current state until the first power supply parameter is equal to the full-load power supply parameter (S130).

Description

Drain pump, control method thereof, controller, air conditioner and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202311438162.9 filed on October 31, 2023, entitled “Drainage Pump, Control Method Thereof, Controller, Air Conditioner, and Storage Medium,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of air conditioners, and in particular to a drainage pump and a control method thereof, a controller, an air conditioner, and a storage medium. Background Art

[0004] In the related art, the drain pump is a key component of the air conditioner indoor unit, responsible for draining condensed water from the indoor unit to the outside through a specific drain pipe. Air conditioner drain pumps can be categorized as AC drain pumps and DC drain pumps. DC pumps are gradually replacing AC drain pumps due to their advantages such as low vibration, small size, and low water suction noise. However, both AC and DC drain pumps operate at a constant speed.

[0005] Since the speed of the current drainage pump is constant, the pressure it generates is certain. When it reaches the critical state of water absorption (no water can be absorbed), the water column on the drainage side cannot flow back to the water receiving pan, and the water on the inlet side cannot be absorbed. The air volume inside the water pump increases, and the water pump operates in a gas-liquid two-phase state for a long time. Therefore, the noise of the drainage pump will be greatly increased, resulting in user complaints.

[0006] Summary of the Invention

[0007] The present application aims to at least partially solve one of the technical problems existing in the prior art. To this end, the present application proposes a drainage pump and a control method thereof, a controller, an air conditioner and a storage medium.

[0008] In the first aspect, an embodiment of the present application provides a method for controlling a drainage pump, including: detecting a first power supply parameter of the drainage pump in a current state; determining corresponding full-load power supply parameters and no-load power supply parameters based on the current state; when the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, adjusting the current state until the first power supply parameter is equal to the full-load power supply parameter.

[0009] According to some embodiments of the present application, after determining the corresponding full-load power supply parameter and no-load power supply parameter based on the current state, the control method further includes: when the first power supply parameter is equal to the no-load power supply parameter or the full-load power supply parameter, keeping the drainage pump running in the current state.

[0010] According to some embodiments of the present application, adjusting the current state includes: adjusting the current state to a target state, and obtaining a second power supply parameter of the drainage pump under the target state; determining a parameter change amplitude of the second power supply parameter relative to the first power supply parameter; and adjusting the current state according to the parameter change amplitude.

[0011] According to some embodiments of the present application, adjusting the current state according to the parameter change amplitude includes: determining a comparison result between the parameter change amplitude and a preset change amplitude; and adjusting the current state according to the comparison result. According to some embodiments of the present application, adjusting the current state according to the comparison result includes one of the following: when the comparison result indicates that the parameter change amplitude is less than the preset change amplitude, reducing the head or speed of the drainage pump; when the comparison result indicates that the parameter change amplitude is greater than or equal to the preset change amplitude, increasing the head or speed of the drainage pump.

[0012] According to some embodiments of the present application, the control method further includes: receiving a water full protection signal; and increasing the head or speed of the drainage pump according to the water full protection signal.

[0013] According to some embodiments of the present application, after increasing the head or speed of the drainage pump according to the water full protection signal, the control method further includes: obtaining the duration of the water full protection signal; when the duration reaches a first preset duration, controlling the drainage pump to stop and generating a fault prompt message.

[0014] According to some embodiments of the present application, the control method also includes: receiving a shutdown signal, and controlling the drainage pump to keep running according to the shutdown signal; until the first power supply parameter is not equal to the full load power supply parameter, reducing the speed of the drainage pump based on a preset adjustment step, and reducing the speed of the drainage pump to zero within a second preset time.

[0015] According to some embodiments of the present application, detecting the first power supply parameter of the drainage pump in the current state includes: controlling the drainage pump to operate in the current state for a third preset time period and then detecting the first power supply parameter of the drainage pump.

[0016] According to some embodiments of the present application, the current state includes a current lift or a current rotation speed.

[0017] In a second aspect, an embodiment of the present application further provides a controller comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the drainage pump control method as described in the first aspect above when executing the computer program.

[0018] In a third aspect, an embodiment of the present application further provides a drainage pump, comprising a controller as described in the second aspect above.

[0019] In a fourth aspect, an embodiment of the present application provides an air conditioner, comprising the drainage pump as described in the third aspect above.

[0020] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the control method of the drainage pump as described in the first aspect above.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0023] FIG1 is a flow chart of a method for controlling a drainage pump according to an embodiment of the present application;

[0024] FIG2 is a flow chart of a method for controlling a drainage pump provided by another embodiment of the present application;

[0025] FIG3 is a flow chart of a method for controlling a drainage pump provided by another embodiment of the present application;

[0026] FIG4 is a flow chart of a method for controlling a drainage pump provided by another embodiment of the present application;

[0027] FIG5 is a flow chart of a method for controlling a drainage pump provided by another embodiment of the present application;

[0028] FIG6 is a flow chart of a method for controlling a drainage pump provided by another embodiment of the present application;

[0029] FIG7 is an overall flow chart of a method for controlling a drainage pump according to an embodiment of the present application; and

[0030] FIG8 is a schematic structural diagram of a controller for executing a method for controlling a drainage pump according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] The following describes in detail embodiments of the present application. Examples of the embodiments 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 only used to explain the present application and are not to be construed as limiting the present application.

[0032] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0033] In the description of this application, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0034] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0035] The drain pump is a crucial component in the indoor unit of an air conditioner, draining condensate from the indoor unit to the outside through a dedicated drain pipe. Air conditioner drain pumps can be categorized as either AC or DC. DC pumps are gradually replacing AC pumps due to their advantages, such as low vibration, smaller size, and quieter water suction. However, both AC and DC pumps operate at a constant speed.

[0036] In some cases, since the speed of the current drainage pump is constant, the pressure it generates is certain. When it reaches the critical state of water absorption (no water can be absorbed), the water column on the drainage side cannot flow back to the water receiving pan, and the water on the inlet side cannot be absorbed. The air volume inside the water pump increases, and the water pump operates in a gas-liquid two-phase state for a long time. Therefore, the noise of the drainage pump will be greatly increased, resulting in user complaints.

[0037] Based on the above situation, the embodiments of the present application propose a drainage pump and its control method, controller, air conditioner and storage medium, aiming to reduce the operating noise of the drainage pump.

[0038] The following further describes various embodiments of the control method for the drainage pump of the present application in conjunction with the accompanying drawings.

[0039] As shown in FIG1 , FIG1 is a flow chart of a method for controlling a drainage pump provided by an embodiment of the present application; the method for controlling a drainage pump may include but is not limited to step S110 , step S120 and step S130 .

[0040] Step S110, detecting a first power supply parameter of the drainage pump in the current state;

[0041] Step S120: determining corresponding full-load power supply parameters and no-load power supply parameters according to the current state;

[0042] Step S130: When the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, adjust the current state until the first power supply parameter is equal to the full-load power supply parameter.

[0043] In one embodiment, after the drain pump is running, first, the first power supply parameter of the drain pump in the current state is detected; then, the full-load power supply parameter and the no-load power supply parameter of the drain pump are determined, wherein the full-load power supply parameter and the no-load power supply parameter correspond to the current state; then, when the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, the current state is adjusted until the first power supply parameter is equal to the full-load power supply parameter. Therefore, this embodiment can compare the real-time first power supply parameter of the drain pump with the full-load power supply parameter and the no-load power supply parameter. If the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, then it can be considered that the current drain pump is in a critical water absorption state. In this regard, this embodiment can adjust the state of the drain pump to return the drain pump to a full-load drainage state, thereby greatly reducing the operating noise of the drain pump and reducing user complaints.

[0044] It should be noted that if the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, then it can be considered that the current drainage pump is in a critical water absorption state. If the current state is not adjusted and the drainage pump continues to operate according to the current drainage state, the operating noise of the drainage pump will increase, which may cause user complaints.

[0045] It should be noted that if the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, then it can be considered that the current drainage pump is in a critical water absorption state, and the current state is adjusted until the first power supply parameter is equal to the full-load power supply parameter. Therefore, the drainage pump returns to the full-load drainage state, thereby greatly reducing the operating noise of the drainage pump and reducing user complaints.

[0046] Specifically, after determining the corresponding full-load power supply parameters and no-load power supply parameters according to the current state, the control method of the drainage pump also includes but is not limited to the following situations:

[0047] In the first case, when the first power supply parameter is equal to the no-load power supply parameter or the full-load power supply parameter, the drainage pump is kept running in the current state.

[0048] In one embodiment, when the drain pump starts running, after determining the corresponding full-load power supply parameter and no-load power supply parameter based on the current state, if the first power supply parameter is equal to the no-load power supply parameter or the full-load power supply parameter, the drain pump can be controlled to maintain operation in the current state because the operating noise at this time is low. Therefore, this embodiment can compare the real-time first power supply parameter of the drain pump with the full-load power supply parameter and the no-load power supply parameter. If the first power supply parameter is equal to the no-load power supply parameter or the full-load power supply parameter, it can be considered that the drain pump is currently in the no-load drainage state or the full-load drainage state. In this regard, this embodiment can determine whether the first power supply parameter is equal to the no-load power supply parameter or the full-load power supply parameter, so that the drain pump maintains operation in the current state in the no-load drainage state or the full-load drainage state, thereby reducing the operating noise of the drain pump.

[0049] It should be noted that if the first power supply parameter is equal to the no-load power supply parameter, then it can be considered that the current drainage pump is in a no-load drainage state, and the drainage pump is controlled to keep running in the current state, so that the operating noise of the drainage pump can be reduced; if the first power supply parameter is equal to the full-load power supply parameter, then it can be considered that the current drainage pump is in a full-load drainage state, and the drainage pump is controlled to keep running in the current state, so that the operating noise of the drainage pump can be reduced, reducing user complaints.

[0050] In addition, as shown in FIG2 , FIG2 is a flow chart of a method for controlling a drainage pump provided by another embodiment of the present application; regarding the adjustment of the current state in the above-mentioned step S130 , it may include but is not limited to step S210 , step S220 and step S230 .

[0051] Step S210: adjusting the current state to the target state, and obtaining a second power supply parameter of the drainage pump in the target state;

[0052] Step S220: determining a parameter change range of the second power supply parameter relative to the first power supply parameter;

[0053] Step S230: Adjust the current state according to the parameter change range.

[0054] In one embodiment, after the drain pump is running, if the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, first, the drain pump is adjusted from the current state to the target state, and the corresponding second power supply parameter of the drain pump is obtained in the target state; then, the second power supply parameter is compared with the first power supply parameter to obtain the parameter change amplitude of the second power supply parameter compared to the first power supply parameter; then, the current state is adjusted according to the determined parameter change amplitude; wherein, the current state of the drain pump is adjusted until the first power supply parameter is equal to the full-load power supply parameter. Therefore, this embodiment can adjust the state of the drain pump when the drain pump is in the critical water absorption state, and can adjust the current state according to the parameter change amplitude. In this regard, this embodiment can return the drain pump to the full-load drainage state by adjusting the state of the drain pump, thereby greatly reducing the operating noise of the drain pump and reducing user complaints.

[0055] It should be noted that the above-mentioned first power supply parameter and second power supply parameter are obtained through real-time detection. By comparing the first power supply parameter with the second power supply parameter, the parameter change amplitude can be obtained, and the current state is adjusted according to the parameter change amplitude. The current state of the drainage pump is adjusted until the first power supply parameter is equal to the full-load power supply parameter. Therefore, the drainage pump returns to the full-load drainage state, thereby greatly reducing the operating noise of the drainage pump and reducing user complaints.

[0056] In addition, as shown in FIG3 , FIG3 is a flow chart of a method for controlling a drainage pump provided by another embodiment of the present application; regarding the adjustment of the current state according to the parameter change amplitude in the above step S230 , it may include but is not limited to step S310 and step S320 .

[0057] Step S310: Determine a comparison result between the parameter change range and the preset change range;

[0058] Step S320: Adjust the current state according to the comparison result.

[0059] In one embodiment, after the drain pump is running, if the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, first, the drain pump is adjusted from the current state to the target state, and the corresponding second power supply parameter of the drain pump is obtained in the target state; then, the second power supply parameter is compared with the first power supply parameter to obtain the parameter change amplitude of the second power supply parameter compared with the first power supply parameter; then, the parameter change amplitude is compared with the preset change amplitude to obtain a comparison result; finally, the current state is adjusted according to the comparison result; wherein, the current state of the drain pump is adjusted until the first power supply parameter is equal to the full-load power supply parameter. Therefore, this embodiment can adjust the state of the drain pump when the drain pump is in the critical state of water absorption, and can adjust the current state according to the comparison result of the parameter change amplitude and the preset change amplitude. In this regard, this embodiment can return the drain pump to the full-load drainage state by adjusting the state of the drain pump, thereby greatly reducing the operating noise of the drain pump and reducing user complaints.

[0060] It should be noted that by comparing the parameter change amplitude with the preset change amplitude, a comparison result can be obtained, and the current state is adjusted according to the comparison result. Among them, the current state of the drainage pump is adjusted until the first power supply parameter is equal to the full-load power supply parameter. Therefore, the drainage pump returns to the full-load drainage state, thereby greatly reducing the operating noise of the drainage pump and reducing user complaints.

[0061] Specifically, the step of adjusting the current state according to the comparison results can be divided into the following situations:

[0062] The first case: when the comparison result indicates that the parameter change range is less than the preset change range, the head or speed of the drainage pump is reduced;

[0063] The second case: when the comparison result indicates that the parameter change amplitude is greater than or equal to the preset change amplitude, the head or speed of the drainage pump is increased.

[0064] In one embodiment, after the drainage pump is running, if the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, first, the drainage pump is adjusted from the current state to the target state, and the corresponding second power supply parameter of the drainage pump is obtained in the target state; then, the second power supply parameter is compared with the first power supply parameter to obtain the parameter change amplitude of the second power supply parameter compared with the first power supply parameter; then, the parameter change amplitude is compared with the preset change amplitude to obtain a comparison result; finally, if the comparison result indicates that the parameter change amplitude is less than the preset change amplitude, then the head or speed of the drainage pump is reduced; if the comparison result indicates that the parameter change amplitude is greater than or equal to the preset change amplitude, then the head or speed of the drainage pump is increased; wherein, the head or speed of the drainage pump is adjusted until the first power supply parameter is equal to the full-load power supply parameter. Therefore, this embodiment can adjust the state of the drainage pump when the drainage pump is in a critical water absorption state, and can adjust the head or speed of the drainage pump according to the comparison result of the parameter change amplitude and the preset change amplitude. To this end, this embodiment can adjust the state of the drainage pump to make the drainage pump return to a full-load drainage state, thereby greatly reducing the operating noise of the drainage pump and reducing user complaints.

[0065] It should be noted that if the comparison result indicates that the parameter change range is less than the preset change range, then it can be considered that the current drainage pump's water inlet cannot suck up water. In this regard, the drainage pump's head or speed is reduced, so that the drainage pump's speed decreases, and then the drainage speed decreases, which speeds up the water level rise rate at the drainage pump's water inlet; the drainage pump's head or speed is adjusted until the first power supply parameter is equal to the full-load power supply parameter. Therefore, the drainage pump returns to the full-load drainage state, which can greatly reduce the drainage pump's operating noise and reduce user complaints.

[0066] It should be noted that if the comparison result indicates that the parameter change amplitude is greater than or equal to the preset change amplitude, then it can be considered that the current drainage pump water inlet can be immersed in water. In this regard, the head or speed of the drainage pump is increased, so that the speed of the drainage pump increases, and the drainage speed increases, so that the drainage side can drain normally; wherein, the head or speed of the drainage pump is adjusted until the first power supply parameter is equal to the full-load power supply parameter. Therefore, the drainage pump returns to the full-load drainage state, thereby greatly reducing the operating noise of the drainage pump and reducing user complaints.

[0067] It is understandable that when the head or speed of the drainage pump increases, the speed of the drainage pump will increase and the drainage speed will increase; when the head or speed of the drainage pump decreases, the speed of the drainage pump will decrease and the drainage speed will decrease.

[0068] As shown in FIG4 , FIG4 is a flow chart of a method for controlling a drainage pump provided by another embodiment of the present application; the method for controlling a drainage pump may include but is not limited to step S410 and step S420 .

[0069] Step S410: receiving a water full protection signal;

[0070] Step S420: Increase the head or speed of the drainage pump according to the water full protection signal.

[0071] In one embodiment, after the drain pump is operating, it first receives a full water protection signal; then, based on the full water protection signal, it increases the drain pump's head or speed. Thus, this embodiment can detect whether the drain pump is full of water and, upon receiving the full water protection signal, increase the drain pump's head or speed. This embodiment can thus reduce overflowing from the water tray by adjusting the drain pump's head.

[0072] As shown in Figure 5, Figure 5 is a flow chart of a control method for a drainage pump provided by another embodiment of the present application; after the step of increasing the head or speed of the drainage pump according to the water full protection signal in the above-mentioned step S420, it may include but is not limited to step S510 and step S520.

[0073] Step S510: Obtain the duration of the water full protection signal;

[0074] Step S520: When the duration reaches a first preset duration, the drainage pump is controlled to stop, and a fault prompt message is generated.

[0075] In one embodiment, after the water pump is operating, it first receives a full water protection signal; then, based on the full water protection signal, it increases the pump head or speed; then, it determines the duration of the full water protection signal; and finally, if the duration of the full water protection signal equals a first preset duration, it shuts down the pump and generates a fault message. This embodiment can determine whether the pump has failed based on the duration of the full water protection signal, and generate a fault message if the pump is in a faulty state. This improves the efficiency of troubleshooting pump failures, avoids the problem of loud noise when the pump is in a faulty state, and reduces user complaints.

[0076] It should be noted that if the duration of the water full protection signal reaches the first preset duration, it can be considered that the drain pump is in a fault state. Therefore, the drain pump is controlled to stop and a fault prompt message is generated, which can improve the efficiency of solving the drain pump fault and avoid the problem of loud noise when the drain pump is running in a fault state, thereby reducing user complaints.

[0077] As shown in FIG6 , FIG6 is a flowchart of a method for controlling a drainage pump provided by another embodiment of the present application; the method for controlling a drainage pump may include but is not limited to step S610 and step S620.

[0078] Step S610: receiving a shutdown signal, and controlling the drainage pump to keep running according to the shutdown signal;

[0079] Step S620: until the first power supply parameter is not equal to the full-load power supply parameter, reduce the speed of the drainage pump based on the preset adjustment step, and reduce the speed of the drainage pump to zero within a second preset time.

[0080] In one embodiment, after the drain pump is running, it first receives a shutdown signal and controls the drain pump to maintain its current speed according to the shutdown signal; then, when the first power supply parameter is not equal to the full-load power supply parameter, the speed of the drain pump is adjusted according to a preset adjustment step length, so that the speed is reduced, and the speed of the drain pump is reduced to zero within a second preset time period. Therefore, when receiving the shutdown signal, this embodiment can control the drain pump to maintain its current speed, so that the first power supply parameter is not equal to the full-load power supply parameter, and can adjust the speed of the drain pump according to the preset adjustment step length. To this end, this embodiment can reduce the speed of the drain pump according to the preset adjustment step length, so that the speed is reduced to zero within the second preset time period, thereby allowing the water in the water outlet section of the drain pump to gradually flow back, avoiding the backflow sound caused by sudden backflow, and reducing user complaints.

[0081] It should be noted that after receiving the shutdown signal, if the drainage pump is controlled to maintain the current speed for a period of time according to the shutdown signal, and then the speed of the drainage pump is adjusted from the current speed to zero, the water in the outlet section of the drainage pump will flow back quickly, causing obvious backflow sound.

[0082] Specifically, the step of detecting the first power supply parameter of the drainage pump in the current state in the above step S110 also includes but is not limited to the following situations.

[0083] In the first case, after the drainage pump is controlled to operate for a third preset time period in the current state, a first power supply parameter of the drainage pump is detected.

[0084] In one embodiment, after the drain pump is operating, the drain pump is controlled to operate in the current state for a third preset time period, and then the first power supply parameter of the drain pump in the current state is detected. Therefore, this embodiment can detect the first power supply parameter of the drain pump again after the third preset time period, thereby obtaining the real-time first power supply parameter. In this regard, by comparing the real-time first power supply parameter with the full-load power supply parameter and the no-load power supply parameter, the head or speed of the drain pump can be adjusted, which can significantly reduce the operating noise of the drain pump and reduce user complaints.

[0085] It should be noted that by detecting the first power supply parameter of the drainage pump after the drainage pump has run for the third preset time, the real-time first power supply parameter can be compared with the full-load power supply parameter and the no-load power supply parameter to obtain the real-time drainage status of the drainage pump, and the head or speed of the drainage pump can be adjusted according to the real-time drainage status, which can greatly reduce the operating noise of the drainage pump and reduce user complaints.

[0086] Based on the control methods of the drainage pumps of the above-mentioned various embodiments, an overall embodiment of the control method of the drainage pump of the present application is proposed below.

[0087] As shown in FIG7 , FIG7 is an overall flow chart of a control method for a drainage pump provided by an embodiment of the present application. The specific steps are as follows:

[0088] 1) Set the lift using the wired controller;

[0089] 2) The drainage pump operates according to the current status;

[0090] 3) Accumulate the third preset running time;

[0091] 4) Comparing the first power supply parameter I, the full-load power supply parameter In, and the no-load power supply parameter Ino;

[0092] 4.1) If the first power supply parameter I is equal to the full-load power supply parameter In or the first power supply parameter I is equal to the no-load power supply parameter Ino, maintain the current state of operation;

[0093] 4.1.1) Determining whether the received water full protection signal continues for a first preset time period;

[0094] 4.1.1.1) If the received water full protection signal does not last for the first preset time period, increase the lift;

[0095] 4.1.1.2) If the water full protection signal is received for a first preset time period, the drainage pump is stopped and a fault prompt message is generated;

[0096] 4.1.2) receiving a shutdown signal, and comparing the first power supply parameter I, the full-load power supply parameter In, and the no-load power supply parameter Ino;

[0097] 4.1.2.1) If the first power supply parameter I is not equal to the full-load power supply parameter In, reduce the speed of the drain pump based on a preset adjustment step and reduce the speed of the drain pump to zero within a second preset time;

[0098] 4.2) If the first power supply parameter I is greater than the no-load power supply parameter Ino and less than the full-load power supply parameter In, adjust the current state to the target state and run for a fourth preset duration;

[0099] 4.2.1) Determine whether the parameter change range is greater than the preset change range;

[0100] 4.2.1.1) If the parameter change range is less than the preset change range, reduce the head;

[0101] 4.2.1.2) If the parameter change range is greater than or equal to the preset change range, the lift will be increased.

[0102] In one embodiment, first, relevant parameters of the drainage pump lift are set through the wire controller; secondly, the drainage pump operates according to the current state; thirdly, after the cumulative operation time of the drainage pump reaches a third preset time, the drainage pump is detected to obtain a first power supply parameter; thirdly, the first power supply parameter I of the drainage pump is compared with the full-load power supply parameter In and the no-load power supply parameter Ino, wherein the full-load power supply parameter In and the no-load power supply parameter Ino correspond to the current state of the drainage pump; finally, when the first power supply parameter I is equal to the full-load power supply parameter In or the first power supply parameter I is equal to the no-load power supply parameter, the drainage pump is controlled to maintain operation in the current state; when the first power supply parameter I is greater than the no-load power supply parameter Ino and less than the full-load power supply parameter In, the drainage pump is controlled to adjust from the current state to the target state, and continuously operate for a fourth preset time, the drainage pump is detected to obtain a second power supply parameter, the second power supply parameter is compared with the first power supply parameter to obtain a parameter change amplitude, and the parameter change amplitude is compared with the preset change amplitude. The parameter change amplitude is compared with the preset change amplitude, and it is determined whether the parameter change amplitude is greater than the preset change amplitude. If the parameter change amplitude is less than the preset change amplitude, the head of the drainage pump is reduced. If the parameter change amplitude is greater than the preset change amplitude, the head of the drainage pump is increased until the first power supply parameter I of the drainage pump is equal to the full-load power supply parameter In; in addition, a water full protection signal of the drainage pump is received, and it is determined whether the water full protection signal lasts for a first preset time. If the water full protection signal does not last for the first preset time, the head of the drainage pump is increased. If the water full protection signal lasts for the first preset time, the drainage pump is controlled to stop and a fault prompt message is generated; in addition, a stop signal of the drainage pump is also received. After the stop signal is received, the first power supply parameter I of the drainage pump is compared with the full-load power supply parameter In and the no-load power supply parameter Ino. If the first power supply parameter In is not equal to the full-load power supply parameter Ino, the drainage pump is controlled to reduce the speed of the drainage pump with a preset adjustment step, and the speed of the drainage pump is controlled to be reduced to zero within a second preset time. Therefore, this embodiment can compare the real-time first power supply parameter of the drainage pump with the full-load power supply parameter and the no-load power supply parameter. If the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, then it can be considered that the current drainage pump is in a critical water absorption state. In this regard, this embodiment can adjust the state of the drainage pump to make the drainage pump return to the full-load drainage state, thereby greatly reducing the operating noise of the drainage pump and reducing user complaints.

[0103] It should be noted that each state has corresponding full-load power supply parameters under full load and no-load power supply parameters under no-load. Therefore, the corresponding full-load power supply parameters and no-load power supply parameters can be determined according to the current state.

[0104] It should be noted that the above-mentioned current state includes the current lift or the current speed.

[0105] It should be noted that the above-mentioned target state includes a target lift or a target speed.

[0106] It is understandable that the above-mentioned full-load power supply parameters and no-load power supply parameters can be current or power, and this embodiment does not specifically limit them.

[0107] It should be noted that, regarding the above-mentioned first power supply parameter and second power supply parameter, the first power supply parameter and the second power supply parameter are real-time power supply parameters for the operation of the drainage pump, and the first power supply parameter and the second power supply parameter can be current or power, and this embodiment does not specifically limit them.

[0108] It is understandable that the above-mentioned first preset time length, second preset time length, third preset time length, fourth preset time length, preset change amplitude, and preset adjustment step can be set according to actual conditions and are fixed values. This embodiment does not make specific limitations on them.

[0109] Based on the control methods of the drainage pumps in the above-mentioned embodiments, various embodiments of the controller, drainage pump, air conditioner and computer-readable storage medium of the present application are respectively proposed below.

[0110] As shown in Figure 8, Figure 8 is a schematic diagram of the structure of a controller for executing a control method for a drainage pump provided in one embodiment of the present application. The controller 100 implemented in the present application includes: a processor 110, a memory 120, and a computer program stored in the memory 120 and executable on the processor 110. Figure 8 uses one processor 110 and one memory 120 as an example.

[0111] The processor 110 and the memory 120 may be connected via a bus or other means. FIG8 takes the bus connection as an example.

[0112] The memory 120 is a non-transitory computer-readable storage medium that can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory 120 may include a high-speed random access memory and may also include a non-transitory memory, such as at least one disk storage device, a flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 120 optionally includes a memory 120 remotely located relative to the processor 110, and these remote memories 120 can be connected to the controller 100 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0113] Those skilled in the art will understand that the device structure shown in FIG8 does not constitute a limitation on the controller 100 , and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components.

[0114] In the controller 100 shown in FIG8 , the processor 110 can be used to call a control program stored in the memory 120 to implement the above-described drainage pump control method. Specifically, the non-transient software program and instructions required to implement the drainage pump control method of the above-described embodiment are stored in the memory 120. When executed by the processor 110, the drainage pump control method of the above-described embodiment is performed.

[0115] It is worth noting that since the controller 100 of the embodiment of the present application can execute the control method of the drainage pump of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the controller 100 of the embodiment of the present application can refer to the specific implementation methods and technical effects of the control method of the drainage pump of any of the above-mentioned embodiments.

[0116] In addition, an embodiment of the present application further provides a drainage pump, comprising the controller of the above embodiment.

[0117] It is worth noting that since the drainage pump of the embodiment of the present application includes the controller of the above embodiment, and the controller of the above embodiment can execute the control method of the drainage pump of any of the above embodiments, the specific implementation methods and technical effects of the drainage pump of the embodiment of the present application can refer to the specific implementation methods and technical effects of the control method of the drainage pump of any of the above embodiments.

[0118] In addition, an embodiment of the present application further provides an air conditioner, comprising the drainage pump of the above embodiment.

[0119] It is worth noting that since the air conditioner of the embodiment of the present application includes the drain pump of the above embodiment, and the drain pump of the above embodiment can execute the control method of the drain pump of any of the above embodiments, the specific implementation methods and technical effects of the air conditioner of the embodiment of the present application can refer to the specific implementation methods and technical effects of the control method of the drain pump of any of the above embodiments.

[0120] In addition, an embodiment of the present application further provides a computer-readable storage medium storing computer-executable instructions for executing the above-described drainage pump control method. For example, the method steps described in Figures 1 to 7 above are executed.

[0121] It is worth noting that since the computer-readable storage medium of the embodiments of the present application can execute the control method of the drainage pump of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the computer-readable storage medium of the embodiments of the present application can refer to the specific implementation methods and technical effects of the control method of the drainage pump of any of the above-mentioned embodiments.

[0122] Those skilled in the art will appreciate that all or some of the steps and systems in the method disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, and the computer-readable medium can include computer storage media (or non-transitory media) and communication media (or temporary media). As known to those skilled in the art, the term computer storage media is included in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data) and is volatile and non-volatile, removable, and non-removable. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory, or other memory technology, CD-ROM, digital versatile disks (DVD), or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage, or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0123] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above implementation mode. Technical personnel familiar with the art can also make various equivalent modifications or substitutions under the shared conditions that do not violate the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A method for controlling a drainage pump, comprising: Detecting a first power supply parameter of the drainage pump in a current state; Determine corresponding full-load power supply parameters and no-load power supply parameters according to the current state; as well as When the first power supply parameter is less than the full-load power supply parameter and greater than the no-load power supply parameter, the current state is adjusted until the first power supply parameter is equal to the full-load power supply parameter.

2. The control method according to claim 1, wherein: After determining the corresponding full-load power supply parameters and no-load power supply parameters according to the current state, the control method further includes: When the first power supply parameter is equal to the no-load power supply parameter or the full-load power supply parameter, the drainage pump is kept running in the current state.

3. The control method according to claim 1 or 2, wherein: The adjusting the current state includes: Adjusting the current state to a target state, and acquiring a second power supply parameter of the drainage pump under the target state; determining a parameter change amplitude of the second power supply parameter relative to the first power supply parameter; and The current state is adjusted according to the parameter change amplitude.

4. The control method according to claim 3, wherein: The adjusting the current state according to the parameter change amplitude includes: Determine a comparison result between the parameter change range and a preset change range; and The current state is adjusted according to the comparison result.

5. The control method according to claim 4, wherein: The adjusting the current state according to the comparison result includes one of the following: When the comparison result indicates that the parameter change range is smaller than the preset change range, reducing the head or speed of the drainage pump; or When the comparison result indicates that the parameter change amplitude is greater than or equal to the preset change amplitude, the head or speed of the drainage pump is increased.

6. The control method according to any one of claims 1 to 5, further comprising: Receive water full protection signal; as well as The head or speed of the drainage pump is increased according to the water full protection signal.

7. The control method according to claim 6, wherein: After increasing the head or speed of the drainage pump according to the water full protection signal, the control method further includes: Obtaining the duration of the water full protection signal; and When the duration reaches a first preset duration, the drainage pump is controlled to stop and a fault prompt message is generated.

8. The control method according to any one of claims 1 to 7, further comprising: receiving a shutdown signal, and controlling the drainage pump to keep running according to the shutdown signal; as well as After the first power supply parameter is not equal to the full-load power supply parameter, the rotation speed of the drainage pump is reduced based on a preset adjustment step, and the rotation speed of the drainage pump is reduced to zero within a second preset time.

9. The control method according to any one of claims 1 to 8, wherein: The detecting a first power supply parameter of the drainage pump in a current state includes: After controlling the drainage pump to operate for a third preset time period in the current state, a first power supply parameter of the drainage pump is detected.

10. The control method according to any one of claims 1 to 9, wherein: The current state includes the current lift or the current rotation speed.

11. A controller, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the control method for a drainage pump according to any one of claims 1 to 10 when executing the computer program.

12. A drainage pump comprising the controller according to claim 11.

13. An air conditioner comprising the drain pump according to claim 12.

14. A computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the control method of the drainage pump according to any one of claims 1 to 10.

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