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

Abstract

Embodiments of the present application provide a drainage pump, a control method and a controller thereof, an air conditioner and a storage medium. The control method of the drainage pump comprises: first, detecting a first power supply parameter of the drainage pump in a current state; then, determining corresponding full-load power supply parameters and no-load power supply parameters according to the current state; and 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, adjusting the current state until the first power supply parameter is equal to the full-load power supply parameter. Embodiments of the present application 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, it can be considered that the current drainage pump is in a water suction critical state. In this case, the state of the drainage pump is adjusted 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.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and in particular to a drainage pump, a control method and controller thereof, an air conditioner, and a storage medium. BACKGROUND

[0002] In related technologies, a drainage pump is an important component of an indoor unit of an air conditioner, and functions to drain condensate water of the indoor unit to the outside through a specific drainage pipeline. The drainage pump of the air conditioner can be classified into an alternating-current drainage pump and a direct-current drainage pump. The direct-current drainage pump gradually replaces the alternating-current drainage pump due to advantages such as small vibration, small size, and low water suction noise. However, both the alternating-current drainage pump and the direct-current drainage pump are operated at a constant speed.

[0003] Since the speed of the drainage pump is constant, the pressure generated by the drainage pump is constant. In a critical state of water suction (water cannot be sucked), the water column on the drainage side cannot flow back to the water pan, and the water on the inlet side cannot be sucked in. The air volume in the water pump increases, and the water pump operates in a gas-liquid two-phase state for a long time, which greatly increases the noise of the drainage pump, resulting in user complaints. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a drainage pump, a control method and controller thereof, an air conditioner, and a storage medium, which aims to reduce the operating noise of the drainage pump.

[0005] In a first aspect, an embodiment of the present application provides a control method of a drainage pump, comprising: 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 according to 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.

[0006] According to some embodiments of the present application, after the corresponding full-load power supply parameters and no-load power supply parameters are determined according to the current state, the control method further comprises: 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 operating in the current state.

[0007] According to some embodiments of the present application, the adjusting of the current state comprises: adjusting the current state to a target state, and obtaining a second power supply parameter of the drainage pump in the target state; determining a parameter variation amplitude of the second power supply parameter relative to the first power supply parameter; and adjusting the current state according to the parameter variation amplitude.

[0008] According to some embodiments of the present application, the adjusting the current state according to the parameter variation range comprises: determining a comparison result of the parameter variation range and a preset variation range; and adjusting the current state according to the comparison result. According to some embodiments of the present application, the adjusting the current state according to the comparison result comprises one of: reducing the head or the rotating speed of the drainage pump when the comparison result indicates that the parameter variation range is less than the preset variation range; and increasing the head or the rotating speed of the drainage pump when the comparison result indicates that the parameter variation range is greater than or equal to the preset variation range.

[0009] According to some embodiments of the present application, the control method further comprises: receiving a water full protection signal; and increasing the head or the rotating speed of the drainage pump according to the water full protection signal.

[0010] According to some embodiments of the present application, after the increasing the head or the rotating speed of the drainage pump according to the water full protection signal, the control method further comprises: obtaining a duration of the water full protection signal; and controlling the drainage pump to stop running and generating a fault prompt information when the duration reaches a first preset duration.

[0011] According to some embodiments of the present application, the control method further comprises: receiving a stop signal; controlling the drainage pump to keep running according to the stop signal; and reducing the rotating speed of the drainage pump based on a preset adjustment step until the first power supply parameter is not equal to the full load power supply parameter, and reducing the rotating speed of the drainage pump to zero within a second preset duration.

[0012] According to some embodiments of the present application, the detecting the first power supply parameter of the drainage pump in the current state comprises: controlling the drainage pump to run for a third preset duration in the current state, and then detecting the first power supply parameter of the drainage pump.

[0013] According to some embodiments of the present application, the current state comprises a current head or a current rotating speed.

[0014] In a second aspect, the embodiments of the present application further provide a controller, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to perform the control method of the drainage pump according to the first aspect.

[0015] In a third aspect, the embodiments of the present application further provide a drainage pump, comprising the controller according to the second aspect.

[0016] In a fourth aspect, the embodiments of the present application provide an air conditioner, comprising the drainage pump according to the third aspect.

[0017] In a fifth aspect, an embodiment of the present application provides a computer readable storage medium storing computer executable instructions for performing the control method of the drain pump according to the first aspect.

[0018] According to the technical solution of the embodiment of the present application, at least the following beneficial effects are achieved: first, the embodiment of the present application detects the first power supply parameter of the drain pump in the current state; then, the embodiment of the present application determines the corresponding full-load power supply parameter and the no-load power supply parameter according 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 embodiment of the present application adjusts the current state until the first power supply parameter is equal to the full-load power supply parameter. The embodiment of the present application 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, it can be considered that the current drain pump is in a water absorption critical state. In this case, the embodiment of the present application can adjust the state of the drain pump to make the drain pump return to the full-load drainage state, thereby greatly reducing the operating noise of the drain pump and reducing user complaints.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the technical solution of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the technical solution of the present application, and do not constitute a limitation on the technical solution of the present application.

[0021] Figure 1 is a flowchart of the control method of the drain pump provided by an embodiment of the present application;

[0022] Figure 2 is a flowchart of the control method of the drain pump provided by another embodiment of the present application;

[0023] Figure 3 is a flowchart of the control method of the drain pump provided by another embodiment of the present application;

[0024] Figure 4 is a flowchart of the control method of the drain pump provided by another embodiment of the present application;

[0025] Figure 5 is a flowchart of the control method of the drain pump provided by another embodiment of the present application;

[0026] Figure 6 is a flowchart of the control method of the drain pump provided by another embodiment of the present application;

[0027] Figure 7 is a whole flow chart of a control method of a drain pump provided by an embodiment of the present application;

[0028] Figure 8 is a structural schematic diagram of a controller for executing the control method of the drain pump provided by an embodiment of the present application. DETAILED DESCRIPTION

[0029] Embodiments of the present application are described in detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, in which the same or similar notations are used to designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below are exemplary and are for the purpose of explaining the present application only, and are not to be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and is not to indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0032] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0033] The drain pump is an important part of the indoor unit of the air conditioner, which plays a role in draining the condensate water of the indoor unit to the outdoor through a specific drain pipe. Among them, the drain pump of the air conditioner can be classified into an alternating current drain pump and a direct current drain pump. Due to the advantages of small vibration, small size and low water suction noise, the direct current drain pump gradually replaces the alternating current drain pump, but whether it is an alternating current drain pump or a direct current drain pump, it is a constant speed operation.

[0034] In some cases, since the speed of the drainage pump is constant, the pressure it generates is also constant. When the water cannot be drawn in at the critical state (when water cannot be drawn in), the water column on the drainage side cannot flow back to the water receiving pan, and the water on the inlet side cannot be drawn in. The air volume inside the pump increases, and the pump operates in a gas-liquid two-phase state for a long time, which will greatly increase the noise of the drainage pump and cause user complaints.

[0035] Based on the above, this application proposes a drainage pump and its control method, controller, air conditioner and storage medium, aiming to reduce the operating noise of the drainage pump.

[0036] The various embodiments of the drainage pump control method of this application will be further described below with reference to the accompanying drawings.

[0037] like Figure 1 As shown, Figure 1 This is a flowchart of a drainage pump control method provided in one embodiment of this application; the drainage pump control method may include, but is not limited to, steps S110, S120 and S130.

[0038] Step S110: Detect the first power supply parameter of the drainage pump in the current state;

[0039] Step S120: Determine the corresponding full-load power supply parameters and no-load power supply parameters based on the current status;

[0040] Step S130: When the first power supply parameter is less than the full-load power supply parameter but 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.

[0041] In one embodiment, after the drainage pump starts operating, firstly, the first power supply parameter of the drainage pump in its current state is detected; then, the full-load power supply parameter and the no-load power supply parameter of the drainage 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 but 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 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 but greater than the no-load power supply parameter, then it can be considered that the drainage pump is in a critical state of water intake. 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.

[0042] 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, it can be considered that the current drainage pump is in a water suction critical 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.

[0043] 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, it can be considered that the current drainage pump is in a water suction critical 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.

[0044] Specifically, after determining the corresponding full load power supply parameter and no-load power supply parameter according to the current state, the control method of the drainage pump further includes but is not limited to the following cases:

[0045] The first case is that 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.

[0046] In an embodiment, the drainage pump starts to operate. After determining the corresponding full load power supply parameter and no-load power supply parameter according to 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, since the operating noise at this time is small, the drainage pump can be controlled to keep running in the current state. Therefore, the 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 equal to the no-load power supply parameter or the full load power supply parameter, it can be considered that the current drainage pump is in a no-load drainage state or a full load drainage state. For this, the embodiment can judge 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 drainage pump can keep running in the no-load drainage state or the full load drainage state, thereby reducing the operating noise of the drainage pump.

[0047] It should be noted that if the first power supply parameter is equal to the no-load power supply parameter, 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, thereby reducing the operating noise of the drainage pump. If the first power supply parameter is equal to the full load power supply parameter, 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, thereby reducing the operating noise of the drainage pump and reducing user complaints.

[0048] In addition, as shown in Figure 2 , the control method of the drainage pump further includes the following cases: Figure 2This is a flowchart of a drainage pump control method provided in another embodiment of this application; the adjustment of the current state in step S130 may include, but is not limited to, steps S210, S220 and S230.

[0049] Step S210: Adjust the current state to the target state and obtain the second power supply parameters of the drainage pump in the target state;

[0050] Step S220: Determine the parameter change range of the second power supply parameter relative to the first power supply parameter;

[0051] Step S230: Adjust the current state according to the magnitude of parameter changes.

[0052] In one embodiment, after the drainage pump starts operating, if the first power supply parameter is less than the full-load power supply parameter but greater than the no-load power supply parameter, firstly, the drainage pump is adjusted from its current state to a 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 range 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 range; wherein, 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, this embodiment can adjust the state of the drainage pump when the drainage pump is in the water suction critical state, and can adjust the current state according to the parameter change range. 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.

[0053] It should be noted that the first and second power supply parameters mentioned above are obtained through real-time detection. By comparing the first and second power supply parameters, the magnitude of parameter changes can be obtained. The current state is adjusted according to the magnitude of parameter changes. Specifically, 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, which can greatly reduce the operating noise of the drainage pump and reduce user complaints.

[0054] In addition, such as Figure 3 As shown, Figure 3 This is a flowchart of a drainage pump control method provided in another embodiment of this application; regarding the adjustment of the current state according to the parameter change range in step S230 above, it may include, but is not limited to, steps S310 and S320.

[0055] Step S310: Determine the comparison result between the parameter change range and the preset change range;

[0056] Step S320, adjusting the current state according to the comparison result.

[0057] In an 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 second power supply parameter of the drainage pump in the target state is obtained; then, the second power supply parameter is compared with the first power supply parameter to obtain the parameter variation amplitude of the second power supply parameter compared with the first power supply parameter; then, the parameter variation amplitude is compared with the preset variation amplitude to obtain the comparison result; finally, the current state is adjusted according to the comparison result; wherein 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 embodiment can adjust the state of the drainage pump when the drainage pump is in the water suction critical state, and can adjust the current state according to the comparison result of the parameter variation amplitude and the preset variation amplitude. The embodiment can make the drainage pump return to the full-load drainage state by adjusting the state of the drainage pump, thereby greatly reducing the operation noise of the drainage pump and reducing user complaints.

[0058] It should be noted that the comparison of the parameter variation amplitude and the preset variation amplitude can obtain the comparison result, and the current state is adjusted according to the comparison result, wherein the current state of the drainage pump is adjusted until the first power supply parameter is equal to the full-load power supply parameter, so that the drainage pump returns to the full-load drainage state, thereby greatly reducing the operation noise of the drainage pump and reducing user complaints.

[0059] Specifically, the step of adjusting the current state according to the comparison result can be divided into the following cases:

[0060] The first case: when the comparison result represents that the parameter variation amplitude is less than the preset variation amplitude, the lift or the rotating speed of the drainage pump is reduced.

[0061] The second case: when the comparison result represents that the parameter variation amplitude is greater than or equal to the preset variation amplitude, the lift or the rotating speed of the drainage pump is increased.

[0062] In one embodiment, after the drainage pump starts operating, if the first power supply parameter is less than the full-load power supply parameter but greater than the no-load power supply parameter, firstly, the drainage pump is adjusted from its current state to a 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 range of the second power supply parameter compared with the first power supply parameter; then, the parameter change range is compared with a preset change range to obtain a comparison result; finally, if 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; if the comparison result indicates that the parameter change range is greater than or equal to the preset change range, 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 it is in the critical state of water intake, and can adjust the head or speed of the drainage pump according to the comparison result of the parameter change range and the preset change range. In this way, 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.

[0063] It should be noted that if the comparison result indicates that the parameter change is less than the preset change range, it can be assumed that the inlet of the drainage pump is not drawing water. In this case, the pump head or speed is reduced, thereby decreasing the pump speed and the drainage speed, which in turn reduces the rate at which the water level rises at the pump inlet. The pump head or speed is then adjusted until the first power supply parameter is equal to the full-load power supply parameter. As a result, the drainage pump returns to the full-load drainage state, which can greatly reduce the operating noise of the drainage pump and reduce user complaints.

[0064] It should be noted that if the comparison result indicates that the parameter change range is greater than or equal to the preset change range, then it can be assumed that the inlet of the drainage pump can be submerged in water. In this case, the head or speed of the drainage pump is increased, thereby increasing the speed of the drainage pump and thus increasing the drainage speed, so that the drainage side can drain normally. In particular, 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, which can greatly reduce the operating noise of the drainage pump and reduce user complaints.

[0065] Understandably, when the head or speed of the drainage pump increases, the pump speed will increase, and the drainage speed will increase; when the head or speed of the drainage pump decreases, the pump speed will decrease, and the drainage speed will decrease.

[0066] like Figure 4 As shown, Figure 4is a flow chart of a control method of a drainage pump provided by another embodiment of the present application; the control method of the drainage pump can include but is not limited to steps S410 and S420.

[0067] Step S410, receiving a water full protection signal;

[0068] Step S420, increasing the lift or rotating speed of the drainage pump according to the water full protection signal.

[0069] In an embodiment, after the drainage pump is running, first, the water full protection signal is received; then, the lift or rotating speed of the drainage pump is increased according to the water full protection signal. Therefore, the present embodiment can detect whether the drainage pump is in a water full state, and when the water full protection signal is received, the lift or rotating speed of the drainage pump is increased. In this regard, the present embodiment can reduce the situation of water overflow of the water pan by adjusting the lift of the drainage pump.

[0070] As shown in Figure 5 , Figure 5 is a flow chart of a control method of a drainage pump provided by another embodiment of the present application; after the step of increasing the lift or rotating speed of the drainage pump according to the water full protection signal in the above step S420, steps S510 and S520 can be included but are not limited thereto.

[0071] Step S510, acquiring the duration of the water full protection signal;

[0072] Step S520, when the duration reaches a first preset duration, controlling the drainage pump to stop and generating a fault prompt information.

[0073] In an embodiment, after the drainage pump is running, first, the water full protection signal is received; then, the lift or rotating speed of the drainage pump is increased according to the water full protection signal; then, the duration of the water full protection signal is acquired; finally, if the duration of the water full protection signal is equal to the first preset duration, the drainage pump is controlled to stop and a fault prompt information is generated. In this regard, the present embodiment can determine whether the drainage pump is in a fault state by the duration of the water full protection signal, and if the drainage pump is in a fault state, a fault prompt information is generated, so that the efficiency of solving the fault of the drainage pump can be improved, and the problem of loud noise of the drainage pump running in a fault state can be avoided, and user complaints can be reduced.

[0074] 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 drainage pump is in a fault state, and therefore the drainage pump is controlled to stop and a fault prompt information is generated, so that the efficiency of solving the fault of the drainage pump can be improved, and the problem of loud noise of the drainage pump running in a fault state can be avoided, and user complaints can be reduced.

[0075] As shown in Figure 6 ,Figure 6 is a flow chart of a control method of a drainage pump provided by another embodiment of the present application; the control method of the drainage pump can include but is not limited to steps S610 and S620.

[0076] Step S610, receiving a shutdown signal and controlling the drainage pump to keep running according to the shutdown signal;

[0077] Step S620, reducing the rotating speed of the drainage pump based on a preset adjustment step length until the first power supply parameter is not equal to the full-load power supply parameter, and reducing the rotating speed of the drainage pump to zero within a second preset time length.

[0078] In an embodiment, after the drainage pump is running, first, a shutdown signal is received, and the drainage pump is controlled to keep running at a current rotating speed according to the shutdown signal; then, when the first power supply parameter is not equal to the full-load power supply parameter, the rotating speed of the drainage pump is adjusted according to a preset adjustment step length, so that the rotating speed of the drainage pump is reduced, and the rotating speed of the drainage pump is reduced to zero within a second preset time length. Therefore, in this embodiment, when the shutdown signal is received, the drainage pump can be controlled to keep running at the current rotating speed, so that the first power supply parameter is not equal to the full-load power supply parameter, and the rotating speed of the drainage pump can be adjusted according to the preset adjustment step length. In this regard, the rotating speed of the drainage pump can be reduced according to the preset adjustment step length, so that the rotating speed of the drainage pump is reduced to zero within the second preset time length, so that the water in the water outlet section of the drainage pump can gradually flow back, avoiding the backwater sound caused by sudden backflow, and reducing user complaints.

[0079] It should be noted that, after receiving the shutdown signal, if the drainage pump is controlled to keep running at the current rotating speed for a period of time, and then the rotating speed of the drainage pump is adjusted from the current rotating speed to zero, the water in the water outlet section of the drainage pump will quickly flow back, causing obvious backwater sound.

[0080] Specifically, regarding the step of detecting the first power supply parameter of the drainage pump in the current state in step S110, the following cases are included but not limited to.

[0081] In the first case, the first power supply parameter of the drainage pump is detected after the drainage pump is controlled to run in the current state for a third preset time length.

[0082] In an embodiment, after the drainage pump is running, the first power supply parameter of the drainage pump in the current state is detected after the drainage pump is controlled to run in the current state for a third preset time length. Therefore, in this embodiment, the first power supply parameter of the drainage pump can be detected again after running for a third preset time length, so that the real-time first power supply parameter can be obtained. 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 lift or rotating speed of the drainage pump can be adjusted, which can greatly reduce the operating noise of the drainage pump and reduce user complaints.

[0083] It should be noted that by detecting the first power supply parameter of the drainage pump after the drainage pump operates for the third preset time length, the real-time drainage state of the drainage pump can be obtained by comparing the real-time first power supply parameter with the full-load power supply parameter and the no-load power supply parameter, and the lift or the rotating speed of the drainage pump is adjusted according to the real-time drainage state, which can greatly reduce the operation noise of the drainage pump and reduce user complaints.

[0084] Based on the control method of the drainage pump of each of the above embodiments, the overall embodiment of the control method of the drainage pump of the present application is proposed as follows.

[0085] As shown in Figure 7 , Figure 7 is the overall flow chart of the control method of the drainage pump provided by an embodiment of the present application. The specific steps are as follows:

[0086] 1) The line controller sets the lift;

[0087] 2) The drainage pump operates according to the current state;

[0088] 3) The cumulative operation is for the third preset time length;

[0089] 4) The first power supply parameter I, the full-load power supply parameter In, and the no-load power supply parameter Ino are compared;

[0090] 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, the current state is kept running;

[0091] 4.1.1) It is judged whether the water full protection signal is received for the first preset time length;

[0092] 4.1.1.1) If the water full protection signal is not received for the first preset time length, the lift is increased;

[0093] 4.1.1.2) If the water full protection signal is received for the first preset time length, the drainage pump is controlled to stop and a fault prompt information is generated; 4.1.2) The first power supply parameter I, the full-load power supply parameter In, and the no-load power supply parameter Ino are compared;

[0094] 4.1.2.1) If the first power supply parameter I is not equal to the full-load power supply parameter In, the rotating speed of the drainage pump is reduced based on a preset adjustment step, and the rotating speed of the drainage pump is reduced to zero within a second preset time length;

[0095] 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, the current state is adjusted to a target state and operated for a fourth preset time length;

[0096] 4.2.1) It is judged whether the parameter variation amplitude is greater than a preset variation amplitude;

[0097] 4.2.1.1) If the parameter variation amplitude is less than the preset variation amplitude, the lift is reduced;

[0098] 4.2.1.2) If the parameter variation amplitude is greater than or equal to the preset variation amplitude, the lift is increased.

[0099] In an embodiment, first, the line controller sets the relevant parameters of the lift of the drainage pump; second, the drainage pump operates according to the current state; third, after the cumulative running time of the drainage pump reaches a third preset time length, the drainage pump is detected to obtain a first power supply parameter; fourth, the first power supply parameter I of the drainage pump is compared with a full-load power supply parameter In and an idle-load power supply parameter Ino, wherein the full-load power supply parameter In and the idle-load power supply parameter Ino correspond to the current state of the drainage pump; fifth, 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 idle-load power supply parameter, the drainage pump is controlled to keep operating in the current state; when the first power supply parameter I is greater than the idle-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 a target state, and continuously operates for a fourth preset time length, 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 variation amplitude, the parameter variation amplitude is compared with a preset variation amplitude to determine whether the parameter variation amplitude is greater than the preset variation amplitude, if the parameter variation amplitude is less than the preset variation amplitude, the lift of the drainage pump is reduced, if the parameter variation amplitude is greater than the preset variation amplitude, the lift 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 length, if the water full protection signal does not last for the first preset time length, the lift of the drainage pump is increased, if the water full protection signal lasts for the first preset time length, the drainage pump is controlled to stop, and a fault prompt information is generated; in addition, a stop signal of the drainage pump is received, when 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 idle-load power supply parameter Ino, if the first power supply parameter In is not equal to the idle-load power supply parameter Ino, the speed of the drainage pump is reduced by a preset adjustment step, and the speed of the drainage pump is reduced to zero within a second preset time length. Therefore, the first power supply parameter of the drainage pump in real time can be compared with the full-load power supply parameter and the idle-load power supply parameter, if the first power supply parameter is less than the full-load power supply parameter and greater than the idle-load power supply parameter, it can be considered that the current drainage pump is in a water suction critical state, for this, the state of the drainage pump can be adjusted to make the drainage pump return to the full-load drainage state, so that the running noise of the drainage pump can be greatly reduced, and user complaints can be reduced.

[0100] It should be noted that each state has corresponding full-load power supply parameters and no-load power supply parameters. Therefore, the corresponding full-load power supply parameters and no-load power supply parameters can be determined based on the current state.

[0101] It should be noted that the current status mentioned above includes the current head or the current speed.

[0102] It should be noted that the target conditions mentioned above include target head or target speed.

[0103] It is understood that the full-load power supply parameters and no-load power supply parameters mentioned above can be current or power, and this embodiment does not specifically limit them.

[0104] It should be noted that the first power supply parameter and the second power supply parameter mentioned above 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.

[0105] It is understood that the first preset duration, second preset duration, third preset duration, fourth preset duration, preset change range, and preset adjustment step size mentioned above can be set according to the actual situation and are fixed values. This embodiment does not specifically limit them.

[0106] Based on the control methods for the drainage pumps described in the above embodiments, the following presents various embodiments of the controller, drainage pump, air conditioner, and computer-readable storage medium of this application.

[0107] like Figure 8 As shown, Figure 8 This is a schematic diagram of the structure of a controller for executing a control method for a drainage pump according to an embodiment of this application. The controller 100 implemented in this application includes: a processor 110, a memory 120, and a computer program stored in the memory 120 and executable on the processor 110, wherein... Figure 8 The example uses a processor 110 and a memory 120.

[0108] Processor 110 and memory 120 can be connected via a bus or other means. Figure 8 Taking the example of a connection between China and Israel via a bus.

[0109] The memory 120, as a non-transitory computer readable storage medium, can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory 120 can include a high-speed random access memory, and can also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state memory device. In some embodiments, the memory 120 can optionally include a memory 120 that is remotely arranged relative to the processor 110, and these remote memories 120 can be connected to the controller 100 through 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.

[0110] Those skilled in the art can understand that, Figure 8 The device structure shown in the above embodiments does not constitute a limitation on the controller 100, and can include more or fewer components than those shown, or combine certain components, or different component arrangements.

[0111] In Figure 8 In the controller 100 shown, the processor 110 can be used to call the control program stored in the memory 120, thereby implementing the above-mentioned control method of the drain pump. Specifically, the non-transitory software programs and instructions required to implement the above-mentioned control method of the drain pump of the embodiments are stored in the memory 120, and when executed by the processor 110, the control method of the drain pump of the above-mentioned embodiments is executed.

[0112] It is worth noting that since the controller 100 of the embodiments of the present application can execute the control method of the drain pump of any of the above-mentioned embodiments, the specific implementation and technical effects of the controller 100 of the embodiments of the present application can refer to the specific implementation and technical effects of the control method of the drain pump of any of the above-mentioned embodiments.

[0113] In addition, one embodiment of the present application also provides a drain pump comprising the controller of the above-mentioned embodiments.

[0114] It is worth noting that since the drain pump of the embodiments of the present application comprises the controller of the above-mentioned embodiments, and the controller of the above-mentioned embodiments can execute the control method of the drain pump of any of the above-mentioned embodiments, the specific implementation and technical effects of the drain pump of the embodiments of the present application can refer to the specific implementation and technical effects of the control method of the drain pump of any of the above-mentioned embodiments.

[0115] In addition, one embodiment of the present application also provides an air conditioner comprising the drain pump of the above-mentioned embodiments.

[0116] It is worth noting that since the air conditioner of the embodiment of the present application comprises the drain pump of the above-mentioned embodiments, and the drain pump of the above-mentioned embodiments can perform the control method of the drain pump of any one of the above-mentioned embodiments, the specific implementation and technical effects of the air conditioner of the embodiment of the present application can refer to the specific implementation and technical effects of the control method of the drain pump of any one of the above-mentioned embodiments.

[0117] In addition, one embodiment of the present application further provides a computer readable storage medium storing computer executable instructions for performing the control method of the drain pump. Figures 1 to 7

[0118] It is worth noting that since the computer readable storage medium of the embodiment of the present application can perform the control method of the drain pump of any one of the above-mentioned embodiments, the specific implementation and technical effects of the computer readable storage medium of the embodiment of the present application can refer to the specific implementation and technical effects of the control method of the drain pump of any one of the above-mentioned embodiments.

[0119] Those of ordinary skill in the art will understand that all or some of the steps in the above disclosed method and system can be implemented as software, firmware, hardware, or a suitable combination thereof. Some or all of the 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 as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on computer readable media, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. 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, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that 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 can include any information delivery medium.

[0120] ​The above is a specific description of the preferred embodiments of the present application, but the present application is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A control method of a drain pump, characterized by, The control method comprises: detecting a first power supply parameter of the drainage pump in a current state; determining corresponding full-load power supply parameter and no-load power supply parameter according to the current state; adjusting 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 until the first power supply parameter is equal to the full-load power supply parameter; wherein the adjusting the current state comprises: adjusting the current state to a target state and obtaining a second power supply parameter of the drainage pump in the target state; determining a parameter variation amplitude of the second power supply parameter relative to the first power supply parameter; adjusting the current state according to the parameter variation amplitude.

2. The control method according to claim 1, characterized by, After the determining corresponding full-load power supply parameter and no-load power supply parameter according to the current state, the control method further comprises: keeping the drainage pump running in the current state when the first power supply parameter is equal to the no-load power supply parameter or the full-load power supply parameter.

3. The control method according to claim 1, characterized by, The adjusting the current state according to the parameter variation amplitude comprises: determining a comparison result of the parameter variation amplitude and a preset variation amplitude; adjusting the current state according to the comparison result.

4. The control method according to claim 3, characterized by The adjusting the current state according to the comparison result comprises one of the following: when the comparison result represents that the parameter variation amplitude is less than the preset variation amplitude, reducing the head or rotating speed of the drainage pump; when the comparison result represents that the parameter variation amplitude is greater than or equal to the preset variation amplitude, increasing the head or rotating speed of the drainage pump.

5. The control method according to claim 1, characterized by, The control method further comprises: receiving a water full protection signal; increasing the head or rotating speed of the drainage pump according to the water full protection signal.

6. The control method according to claim 5, characterized by After the increasing the head or rotating speed of the drainage pump according to the water full protection signal, the control method further comprises: obtaining a duration of the water full protection signal; controlling the drainage pump to stop and generating a fault prompt information when the duration reaches a first preset duration.

7. The control method according to claim 1, characterized by, The control method further comprises: receiving a stop signal and controlling the drainage pump to keep running according to the stop signal; after the first power supply parameter is not equal to the full-load power supply parameter, reducing the rotating speed of the drainage pump based on a preset adjustment step and reducing the rotating speed of the drainage pump to zero within a second preset duration.

8. The control method according to claim 1, characterized by, The detecting a first power supply parameter of the drainage pump in a current state comprises: controlling the drainage pump to run for a third preset duration in the current state and then detecting the first power supply parameter of the drainage pump.

9. The control method according to any one of claims 1 to 8, characterized by, The current state comprises current head or current rotating speed.

10. A controller characterized by comprising: The control method comprises: a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the control method of the drainage pump according to any one of claims 1 to 9.

11. A drainage pump characterized in that The controller comprises the controller according to claim 10.

12. An air conditioner characterized by comprising: The drainage pump comprises the drainage pump according to claim 11.

13. A computer-readable storage medium, characterized in that: The computer executable instructions are used to perform the control method of the drainage pump according to any one of claims 1 to 9.

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