Control method for air conditioner shutdown, air conditioner and readable storage medium

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method for stopping an air conditioner, which comprises the following steps: in response to a stopping request, determining a stopping type; according to the stopping type, obtaining operation parameters of the air conditioner corresponding to the stopping type; and according to the operation parameters, controlling the air conditioner to operate. The control method for stopping the air conditioner provided by the application distinguishes the stopping type according to the stopping request, so that the stopping type is classified into different cases, different stopping types correspond to different processing logics. By adjusting the operation parameters corresponding to the stopping type, the operation parameters can meet the stopping conditions corresponding to the current stopping type, thereby effectively reducing the impact of stopping on the air conditioner and improving the overall safety performance and working reliability of the air conditioner. The application further discloses an air conditioner and a readable storage medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent household appliances, for example to a control method for stopping an air conditioner, an air conditioner and a readable storage medium. BACKGROUND

[0002] At present, when receiving a stop instruction, the air conditioner directly reduces the compressor from the current operating frequency to 0Hz and stops. This stop processing method has smaller impact on the compressor and other components of the air conditioner system when the current operating frequency of the compressor is low, and has not too much influence on the reliability and operating performance of the air conditioner. However, if the current operating frequency of the compressor is high, the pressure of the entire refrigerant circulation system of the air conditioner is large, and if the compressor directly stops, the system pressure cannot be released, which is not conducive to system load allocation, and has a large impact on the compressor, which reduces the performance of the compressor and shortens the service life of the compressor. Therefore, the service life and operating performance of the air conditioner are reduced.

[0003] In the related art, a common soft stop control method for implementing the air conditioner compressor includes: in response to a stop instruction for indicating that the compressor stops, control is switched to a stop mode, the stop mode includes: adjusting the flow opening degree of the throttling device of the air conditioner to a set stop flow opening degree, and adjusting the operating frequency of the compressor to a set stop frequency; and controlling the compressor to stop.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] According to the stop instruction, the flow and the operating frequency of the compressor are controlled before the compressor is controlled to stop. Although the compressor is not directly controlled to stop, the device energy consumption is bound to be increased and the user's use experience is affected as soon as the stop instruction is entered into the stop mode.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general review, nor is it intended to determine key / important constituent elements or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a control method for stopping an air conditioner, an air conditioner and a readable storage medium, which reduce the operating energy consumption and improve the stability of the air conditioner operation compared with the related art.

[0009] In some embodiments, a control method for air conditioner shutdown is provided, comprising: determining a shutdown type in response to a shutdown request; obtaining an operation parameter of the air conditioner corresponding to the shutdown type according to the shutdown type; and controlling the air conditioner to operate according to the operation parameter.

[0010] Optionally, the step of obtaining the operation parameter of the air conditioner corresponding to the shutdown type according to the shutdown type comprises: obtaining a running frequency f of the compressor and an exhaust temperature T in the case that the shutdown type is normal shutdown.

[0011] The step of controlling the air conditioner to operate according to the operation parameter comprises: controlling the compressor to shutdown in the case that f≤f0 and T≤T1; controlling the running frequency of the compressor to decrease in the case that f≤f0 and T>T1; and controlling the running frequency of the compressor to decrease in the case that f>f0; wherein f0 is a frequency threshold value, and T1 is a first temperature threshold value.

[0012] Optionally, the step of controlling the running frequency of the compressor to decrease in the case that f≤f0 and T>T1 comprises: controlling the running frequency of the compressor to decrease to f1 and controlling the compressor to keep running at f1 for t1 in the case that f≤f0 and T>T1, and controlling the compressor to shutdown; wherein f1 is a first preset frequency, and t1 is a first preset time.

[0013] Optionally, the step of controlling the running frequency of the compressor to decrease in the case that f>f0 comprises: controlling the running frequency of the compressor to decrease to f2 and controlling the compressor to keep running at f2 for t2 in the case that f>f0, and obtaining the exhaust temperature T again; controlling the compressor to shutdown in the case that T≤T2; and controlling the running frequency of the compressor to decrease to f1 and controlling the compressor to keep running at f1 for t1 in the case that T>T2, and controlling the compressor to shutdown; wherein f2 is a second preset frequency, t2 is a second preset time, T2 is a second temperature threshold value, and f0>f2>f1.

[0014] Optionally, the step of obtaining the operation parameter of the air conditioner corresponding to the shutdown type according to the shutdown type further comprises: obtaining an exhaust pressure P of the compressor in the case that the shutdown type is fault shutdown.

[0015] The step of controlling the air conditioner to operate according to the operation parameter further comprises: controlling the compressor to shutdown in the case that P>P1; and controlling the exhaust pressure of the compressor to decrease in the case that P≤P1; wherein P1 is a first pressure threshold value.

[0016] Optionally, in the case of P≤P1, the step of controlling the compressor to reduce the discharge pressure comprises: in the case of P≤P1, adjusting the electronic expansion valve opening degree to the maximum opening degree, and again acquiring the discharge pressure P of the compressor; in the case of P>P2, controlling the compressor to stop; in the case of P≤P2, controlling the operating frequency of the compressor to reduce; wherein P2 is a second pressure threshold, and P1>P2.

[0017] Optionally, in the case of P≤P2, the step of controlling the operating frequency of the compressor to reduce comprises: in the case of P≤P2, controlling the operating frequency of the compressor to reduce to f1, and controlling the compressor to operate at f1 for t3, and again acquiring the discharge pressure P of the compressor; in the case of P>P3, controlling the compressor to stop; in the case of P≤P3, controlling the compressor to operate normally; wherein t3 is a third preset time, P3 is a third pressure threshold, and P2>P3.

[0018] Optionally, in response to the shutdown request, the step of determining the shutdown type comprises: according to the shutdown request, acquiring a fault code corresponding to the shutdown request; and according to the fault code, determining the shutdown type to include a fan fault or a water pump fault.

[0019] According to the shutdown type, the step of acquiring the operating parameter of the air conditioner corresponding to the shutdown type further comprises: acquiring a number n of occurrences of the fan fault or the water pump fault within a preset time length.

[0020] Optionally, according to the operating parameter, the step of controlling the air conditioner to operate further comprises: in the case of n≥n0, controlling the compressor to stop; and in the case of n

[0021] In some embodiments, an air conditioner is provided, comprising a processor and a memory storing program instructions, the processor being configured to execute a control method for air conditioner shutdown when running the program instructions.

[0022] In some embodiments, a readable storage medium is provided, the readable storage medium comprising a stored program, wherein the program executes a control method for air conditioner shutdown when running.

[0023] The control method for air conditioner shutdown and the readable storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0024] The control method for air conditioner shutdown provided by the present disclosure comprises: in response to a shutdown request, determining a shutdown type; according to the shutdown type, acquiring an operating parameter of the air conditioner corresponding to the shutdown type; and according to the operating parameter, controlling the air conditioner to operate.

[0025] The control method for air conditioner shutdown provided by the present disclosure determines a shutdown type in response to a shutdown request. According to different shutdown types, the operating parameters of the corresponding air conditioner are obtained to control the air conditioner to operate according to the corresponding logic, so as to optimize the load allocation of the air conditioner, reduce the operating energy consumption, and improve the stability of the air conditioner operation.

[0026] The foregoing general description and the following description are merely exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which like reference numerals designate similar items in the figures, and wherein:

[0028] Figure 1 is a schematic diagram of a control method for air conditioner shutdown provided by one embodiment of the present disclosure;

[0029] Figure 2 is a schematic diagram of a control method for air conditioner shutdown provided by another embodiment of the present disclosure;

[0030] Figure 3 is a schematic diagram of a control method for air conditioner shutdown provided by yet another embodiment of the present disclosure;

[0031] Figure 4 is a schematic diagram of a control method for air conditioner shutdown provided by yet another embodiment of the present disclosure;

[0032] Figure 5 is a schematic diagram of a control method for air conditioner shutdown provided by yet another embodiment of the present disclosure;

[0033] Figure 6 is a schematic diagram of a control method for air conditioner shutdown provided by yet another embodiment of the present disclosure;

[0034] Figure 7 is a schematic diagram of a control method for air conditioner shutdown provided by yet another embodiment of the present disclosure;

[0035] Figure 8 is a schematic diagram of a control method for air conditioner shutdown provided by yet another embodiment of the present disclosure;

[0036] Figure 9 is a schematic diagram of a control device for air conditioner shutdown provided by one embodiment of the present disclosure;

[0037] Figure 10 is a schematic diagram of an air conditioner provided by one embodiment of the present disclosure;

[0038] Figure 11 is a structural schematic diagram of an air conditioner provided by one embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] In order to enable a person skilled in the art to more fully understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are used for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0040] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0041] The system for performing the control method includes a processor and a memory storing program instructions. It can also include a communication interface and a bus. Wherein the processor, the communication interface, the memory can complete the communication among each other through the bus. The communication interface can be used for information transmission. The processor is configured to execute the control method for air conditioner shutdown when running the program instructions.

[0042] In combination Figure 1 The embodiments of the present disclosure provide a control method for air conditioner shutdown, including:

[0043] S110, the processor determines the shutdown type in response to the shutdown request.

[0044] S120, the processor acquires the running parameters of the air conditioner corresponding to the shutdown type according to the shutdown type.

[0045] S130, the processor controls the air conditioner to run according to the running parameters.

[0046] The control method for air conditioner shutdown provided by the present disclosure responds to the shutdown request, determines the shutdown type according to the shutdown request. According to the current shutdown type, the running parameters corresponding to the shutdown type are acquired. The air conditioner is controlled to run according to the current running parameters to perform the shutdown operation.

[0047] The control method for stopping the air conditioner provided in the embodiment of the present disclosure determines the stopping type according to the stopping request. The operation parameters corresponding to the stopping type are adjusted to control the air conditioner to perform the stopping operation. In this way, the operation parameters of the air conditioner can be adjusted according to the stopping type, so that the operation parameters can meet the stopping conditions corresponding to the current stopping type, thereby effectively reducing the impact of stopping on the air conditioner and improving the overall safety and reliability of the air conditioner.

[0048] In addition, compared with the scheme in the related art in which the frequency of the compressor and the system flow are adjusted after receiving the stopping instruction, the control method of the present disclosure first determines the stopping type, and then adjusts the operation parameters of the air conditioner according to the stopping type, so as to determine the stopping operation matched with different stopping types, effectively reduce the impact on the air conditioner, and reduce the system energy consumption.

[0049] Optionally, the step of obtaining the operation parameters of the air conditioner corresponding to the stopping type according to the stopping type comprises: obtaining the operation frequency f and the discharge temperature T of the compressor in the case of normal stopping.

[0050] In this embodiment, in the case of normal stopping, the operation frequency f and the discharge temperature T of the compressor are obtained to control the compressor to operate according to the control logic of normal stopping. The size of the operation frequency f directly reflects the working load and energy efficiency of the compressor. By selecting the operation frequency f as the parameter, the actual working state and load of the compressor can be known, and it can be determined whether the rated load is exceeded. The discharge temperature T is positively correlated with the load of the compressor. The larger the value of T is, the larger the overheat load of the compressor is, and vice versa. By selecting the discharge temperature T as the parameter, the load of the compressor can be indirectly evaluated, thereby avoiding damage to the compressor.

[0051] Optionally, the stopping request corresponding to the normal stopping includes user manual operation stopping.

[0052] Optionally, the step of controlling the air conditioner to operate according to the operation parameters comprises: controlling the compressor to stop in the case of f≤f0 and T≤T1; controlling the operation frequency of the compressor to be reduced in the case of f≤f0 and T>T1; and controlling the operation frequency of the compressor to be reduced in the case of f>f0; wherein f0 is a frequency threshold, and T1 is a first temperature threshold.

[0053] In this embodiment, when f≤f0 and T≤T1, it indicates that the current running frequency of the compressor and the current exhaust temperature of the compressor both satisfy the condition of direct stop of the compressor. That is, when f≤f0 and T≤T1, the control of direct stop of the compressor causes less impact on the compressor and does not affect the performance and stability of the compressor. In this case, the stop of the compressor is controlled to avoid excessive operation to increase energy consumption and reduce energy consumption.

[0054] When f≤f0 and T>T1, it indicates that the current running frequency of the compressor is lower than the frequency threshold of the stop of the compressor, but the current exhaust temperature of the compressor does not satisfy the condition of direct stop of the compressor. In this case, if the compressor is directly stopped, a greater impact on the compressor will be caused. Therefore, when f≤f0 and T>T1, the running frequency of the compressor is reduced to reduce the exhaust temperature of the compressor until T≤T1, and the stop of the compressor is controlled to avoid a greater impact on the compressor when the compressor is directly stopped under a large load, thereby prolonging the service life of the compressor and ensuring the operation stability.

[0055] When f>f0, it indicates that the current running frequency of the compressor is high and the running load is large. In this case, the compressor cannot be directly stopped. Therefore, the frequency of the compressor is controlled to be reduced to reduce the load of the compressor, thereby avoiding a greater impact on the compressor when the compressor is directly stopped under a large load, achieving the protection of the compressor, and improving the stability and service life of the compressor.

[0056] In this way, when the stop request is received, the current running frequency and exhaust temperature of the compressor are obtained to determine the running state of the compressor. According to the running state of the compressor, it is determined whether the compressor can be directly stopped. If the running state of the compressor is low load running, the compressor can be directly stopped to reduce energy consumption. If the running state of the compressor is high load, the running frequency of the compressor is adjusted to reduce the running load of the compressor, thereby reducing the impact on the compressor caused by the stop under a high load and improving the stability of the compressor.

[0057] Further, the value range of f0 is f0>80Hz.

[0058] In this embodiment, the size of f0 reflects the load of the compressor. By limiting f0 to be greater than or equal to 80Hz, the rated range of the load of the compressor is indirectly limited, thereby ensuring that the load of the compressor is within the normal limit when the stop request is received. When f is greater than f0, it indicates that the load of the compressor is large when the compressor is running, and the direct stop of the compressor may affect the operation stability of the compressor. By reducing the running frequency of the compressor to reduce the load, the impact on the compressor caused by the direct stop of the compressor under a large load is avoided.

[0059] Exemplarily, specific values of f0 include f0=85Hz, 90Hz or 95Hz.

[0060] Further, T1 is greater than 95℃.

[0061] In this embodiment, the high exhaust temperature represents a large compressor load. By limiting T1 to be greater than 95℃, the compressor load is directly stopped within the normal limit after receiving the stop request, and the load is reduced by frequency reduction when the compressor load is large.

[0062] Exemplarily, specific values of T1 include T1=100℃, 105℃ or 110℃.

[0063] In combination Figure 2 As shown in the figure, the embodiment of the disclosure provides another control method for stopping the air conditioner, comprising:

[0064] S210, the processor determines the stop type in response to the stop request, and the stop type includes normal stop.

[0065] S220, the processor acquires the operating frequency f and the exhaust temperature T of the compressor when the stop type is normal stop.

[0066] S230, the processor determines whether f is less than or equal to f0, the determination result is yes, and the process goes to S232, and the determination result is no, and the process goes to S250.

[0067] S232, the processor determines whether T is less than or equal to T1, the determination result is yes, and the process goes to S240, and the determination result is no, and the process goes to S250.

[0068] S240, the compressor is stopped.

[0069] S250, the operating frequency of the compressor is reduced.

[0070] Wherein, f0 is a frequency threshold, T1 is a first temperature threshold, f0>80Hz, T1>95℃.

[0071] Optionally, in the case of f≤f0 and T>T1, the step of controlling the operating frequency of the compressor to be reduced comprises: in the case of f≤f0 and T>T1, controlling the operating frequency of the compressor to be reduced to f1, and controlling the compressor to keep f1 operating to t1, and then stopping the compressor; wherein, f1 is a first preset frequency, and t1 is a first preset time.

[0072] In this embodiment, in the case of f≤f0 and T>T1, it is illustrated that the current operating frequency of the compressor is lower than the frequency threshold of the compressor shutdown, but the current exhaust temperature of the compressor is higher than the temperature threshold of the compressor shutdown, and this case does not meet the condition of directly shutting down the compressor. Therefore, in the case of f≤f0 and T>T1, the operating frequency of the compressor is controlled to be reduced to f1, and the compressor is controlled to operate at the frequency of f1 for t1 after the operating frequency of the compressor is reduced to f1, so as to reduce the exhaust temperature of the compressor. By controlling the compressor to shut down after the compressor operates at the frequency of f1 for t1, the great impact on the compressor when the compressor has a large load is avoided, the service life of the compressor is prolonged, and the stable operation is ensured.

[0073] Further, the value range of f1 is f1<40 Hz, and the value range of t1 is t1<30 s.

[0074] In this embodiment, f1<40 Hz and t1<30 s are threshold interval ranges for ensuring that the load of the compressor is small when the compressor is shut down. By limiting f1 to be less than 40 Hz, the compressor is operated at a lower frequency after frequency reduction, and then the impact on the compressor when the compressor is shut down is ensured to be small. By limiting t1 to be less than 30 s, the running time of the compressor after frequency reduction is within a reasonable range, and then the load of the compressor is reduced, and the additional energy loss caused by the long running time before the compressor is shut down is avoided.

[0075] For example, the specific value of f1 includes f1=35 Hz, 30 Hz or 25 Hz, and the specific value of t1 includes t1=25 s, 20 s or 15 s.

[0076] In combination Figure 3 The embodiment of the present disclosure provides another control method for shutting down an air conditioner, which comprises the following steps.

[0077] S310, the processor determines a shutdown type in response to a shutdown request, and the shutdown type includes normal shutdown.

[0078] S320, the processor acquires an operating frequency f and an exhaust temperature T of the compressor in the case of the shutdown type being normal shutdown.

[0079] S330, the processor determines whether f is less than or equal to f0, and the determination result is yes, and the determination result is no, and the process proceeds to S350.

[0080] S332, the processor determines whether T is less than or equal to T1, and the determination result is yes, and the process proceeds to S340, and the determination result is no, and the process proceeds to S360.

[0081] S340, the compressor is controlled to shut down.

[0082] S350, control the running frequency of the compressor to decrease.

[0083] S360, control the running frequency of the compressor to decrease to f1, and control the compressor to keep running at f1 for t1, and control the compressor to stop.

[0084] Wherein, f0 is the frequency threshold, f1 is the first preset frequency, T1 is the first temperature threshold, t1 is the first preset time, f0>80Hz, f1<40Hz, T1>95℃, t1<30s.

[0085] Optionally, in the case of f>f0, the step of controlling the running frequency of the compressor to decrease comprises: in the case of f>f0, controlling the running frequency of the compressor to decrease to f2, and controlling the compressor to keep running at f2 for t2, and again acquiring the exhaust temperature T; in the case of T≤T2, controlling the compressor to stop; in the case of T>T2, controlling the running frequency of the compressor to decrease to f1, and controlling the compressor to keep running at f1 for t1, and controlling the compressor to stop; wherein, f2 is the second preset frequency, t2 is the second preset time, T2 is the second temperature threshold, and f0>f2>f1.

[0086] In this embodiment, in the case of f>f0, it is illustrated that the current running frequency of the compressor is high, and the running load is large. In this case, the compressor cannot be directly controlled to stop. Then, the running frequency of the compressor is controlled to decrease to f2, and the compressor is controlled to run at the frequency of f2 for t2 after the running frequency of the compressor is decreased to f2, so as to reduce the load of the compressor. After the load of the compressor is reduced, whether the condition of directly stopping the compressor is met is judged by again acquiring the exhaust temperature T.

[0087] In the case of T≤T2, it is illustrated that the current exhaust temperature of the compressor meets the condition of directly stopping the compressor. That is, in the case of T≤T2, the compressor is directly controlled to stop, which causes small impact on the compressor and does not affect the performance and stability of the compressor.

[0088] In the case of T>T2, it is illustrated that the current exhaust temperature of the compressor does not meet the condition of directly stopping the compressor. In this way, if the compressor is directly stopped, it will cause large impact on the compressor. Therefore, in the case of T>T2, the running frequency of the compressor is decreased to f1, and the compressor is controlled to run at the frequency of f1 for t1 after the running frequency of the compressor is decreased to f1, so as to reduce the exhaust temperature of the compressor. By controlling the compressor to stop after the compressor runs at the frequency of f1 for t1, the large impact of directly stopping the compressor when the load of the compressor is large on the compressor is avoided, the service life of the compressor is prolonged, and the running stability is ensured.

[0089] Further, the value range of f2 is 60Hz≤f2≤80Hz, and the value range of t2 is t2<30s.

[0090] For example, specific values of f2 include 60 Hz, 70 Hz or 80 Hz, and specific values of t2 include 25 s, 20 s or 15 s.

[0091] Further, T2 is greater than 80℃.

[0092] In this embodiment, T2>80℃ is a temperature threshold range that ensures a small load when the compressor is stopped. By limiting T2 to be greater than 80℃, if the exhaust temperature is still high and the load is large after the compressor is reduced in frequency, the compressor continues to be reduced in frequency, thereby ensuring a small load when the compressor is stopped, and ensuring the use experience of the compressor.

[0093] For example, specific values of T2 include 85℃, 90℃ or 95℃.

[0094] In combination with Figure 4 The embodiment of the present disclosure provides another control method for stopping an air conditioner, which comprises the following steps:

[0095] S410, the processor determines a stop type in response to a stop request, and the stop type includes normal stop.

[0096] S420, the processor acquires a running frequency f and an exhaust temperature T of the compressor when the stop type is normal stop.

[0097] S430, the processor determines whether f is less than or equal to f0, and if the determination result is yes, the process proceeds to S432, and if the determination result is no, the process proceeds to S450.

[0098] S432, the processor determines whether T is less than or equal to T1, and if the determination result is yes, the process proceeds to S440, and if the determination result is no, the process proceeds to S460.

[0099] S440, the compressor is controlled to stop.

[0100] S450, the running frequency of the compressor is controlled to be reduced to f2, the compressor is controlled to run at f2 for t2, and the exhaust temperature T is acquired again.

[0101] S452, the processor determines whether T is less than or equal to T2, and if the determination result is yes, the process proceeds to S440, and if the determination result is no, the process proceeds to S460.

[0102] S460, the running frequency of the compressor is controlled to be reduced to f1, the compressor is controlled to run at f1 for t1, and the compressor is controlled to stop.

[0103] Wherein, f0 is a frequency threshold, f1 is a first preset frequency, f2 is a second preset frequency, T1 is a first temperature threshold, T2 is a second temperature threshold, t1 is a first preset time, t2 is a second preset time, f0>80Hz, f1<40Hz, 60Hz≤f2≤80Hz, and f0>f2>f1, T1>95℃, T2>80℃, t1<30s, t2<30s.

[0104] In some embodiments, according to the stop type, the step of acquiring the operation parameter of the air conditioner corresponding to the stop type further comprises: in the case that the stop type is a fault stop, acquiring the discharge pressure P of the compressor.

[0105] In this embodiment, in the case that the stop type is a fault stop, it is explained that the stop request is generated due to the change of the compressor load. By acquiring the discharge pressure P of the compressor, the compressor is controlled to operate according to the control logic of the fault stop. The size of the discharge pressure P directly reflects the compressor load, and when the load is too large, the discharge pressure P becomes large, which is different from the discharge temperature T. The discharge pressure P reacts faster than the discharge temperature T. By selecting the discharge pressure P as the parameter, the operation state of the compressor can be more quickly reflected in the case of the fault stop, and the compressor is prevented from running in the fault state for too long and being damaged.

[0106] Optionally, according to the operation parameter, the step of controlling the air conditioner to operate further comprises: in the case that P>P1, controlling the compressor to stop; and in the case that P≤P1, controlling the discharge pressure of the compressor to decrease; wherein P1 is a first pressure threshold.

[0107] In this embodiment, in the case that P>P1, it is explained that the current discharge pressure of the compressor is too high, which meets the condition of directly stopping the compressor. That is, in the case that P>P1, the compressor is directly controlled to stop, which prevents the load from changing dramatically and causing damage to the compressor and other devices, prolongs the service life of the compressor, and ensures the operation stability.

[0108] In the case that P≤P1, it is explained that the current discharge pressure of the compressor is lower than the pressure threshold of the compressor stop, which does not meet the condition of directly stopping the compressor. In order to make the compressor stop as little as possible due to the fault, in the case that P≤P1, the discharge pressure of the compressor is reduced to reduce the load of the compressor, so that the compressor can continue to operate and the stability of the compressor operation is improved.

[0109] In this way, by acquiring the current exhaust pressure of the compressor when the shutdown request is received, the running state of the compressor is determined. According to the running state of the compressor, it is determined whether the compressor can be directly controlled to shut down. In the case of the shutdown type being a fault shutdown, if the exhaust pressure of the compressor is too high, it represents that the load change is violent, and in this case, the compressor needs to be immediately shut down to prevent damage to the compressor. If the current exhaust pressure P of the compressor is less than or equal to P1, the exhaust pressure of the compressor is controlled to be reduced, so as to reduce the load change of the compressor, and in turn reduce the impact of the fault on the compressor, so that the compressor can continue to run to meet the applicable needs of the user and improve the user experience.

[0110] Further, the value range of P1 is: P1≥4MPa.

[0111] In this embodiment, P1≥4MPa is the maximum interval range of the exhaust pressure of the compressor when the compressor is running. By limiting P1 to be 4MPa or above, it is ensured that the compressor is immediately shut down when the load of the compressor is too large due to a fault, preventing damage to the compressor.

[0112] Exemplarily, the specific value of P1 includes P 1＝ 4MPa, 4.1MPa or 4.2MPa.

[0113] In combination Figure 5 with the above-mentioned embodiments, the disclosure provides another control method for shutdown of an air conditioner, comprising:

[0114] S510, the processor determines the shutdown type in response to the shutdown request, and the shutdown type includes a fault shutdown.

[0115] S520, in the case of the shutdown type being a fault shutdown, the exhaust pressure P of the compressor is acquired.

[0116] S530, the processor determines whether P is less than or equal to P1, and the determination result is yes, entering S540, and the determination result is no, entering S550.

[0117] S540, the exhaust pressure of the compressor is controlled to be reduced.

[0118] S550, the compressor is controlled to shut down.

[0119] Wherein, P1 is a first pressure threshold, and P1≥4MPa.

[0120] Optionally, in the case of P≤P1, the step of controlling the discharge pressure of the compressor to decrease comprises: in the case of P≤P1, adjusting the opening degree of the electronic expansion valve to the maximum opening degree, and obtaining the discharge pressure P of the compressor again; in the case of P>P2, controlling the compressor to stop; in the case of P≤P2, controlling the operating frequency of the compressor to decrease; wherein P2 is a second pressure threshold, and P1>P2.

[0121] In this embodiment, in the case of P≤P1, it is indicated that the current discharge pressure of the compressor does not meet the condition of direct stop. In this case, the compressor cannot be directly controlled to stop. Then, the opening degree of the electronic expansion valve is adjusted to the maximum opening degree to decrease the discharge pressure of the compressor. After adjusting the opening degree, whether the condition of direct stop of the compressor is met is judged by obtaining the discharge pressure P again.

[0122] In the case of P>P2, it is indicated that the adjustment of the discharge pressure of the compressor by adjusting the opening degree of the electronic expansion valve is ineffective, and the load change of the compressor cannot be reduced by adjusting the opening degree of the electronic expansion valve. That is, in the case of P>P2, the compressor is directly controlled to stop to prevent damage to the compressor and other devices caused by the fault.

[0123] In the case of P≤P2, it is indicated that the adjustment of the discharge pressure of the compressor by adjusting the opening degree of the electronic expansion valve is effective. In this case, the frequency of the compressor is continuously controlled to decrease to reduce the load change of the compressor, so that the compressor can continue to operate and the stability of the operation of the compressor is improved.

[0124] Further, the value range of P2 is 3MPa≤P2<4MPa.

[0125] In this embodiment, 3MPa to 4MPa is the normal range of the discharge pressure after the opening degree of the electronic expansion valve is adjusted to the maximum opening degree in the case of fault stop. By limiting P2 to be between 3MPa and 4MPa, it is ensured that the compressor can be stopped in time when the discharge pressure P of the compressor after adjusting the opening degree of the electronic expansion valve to the maximum opening degree is still relatively high.

[0126] Exemplarily, the specific value of P2 includes P2=3.2MPa, 3.5MPa or 3.8MPa.

[0127] In combination Figure 6 As shown, the embodiment of the present disclosure provides another control method for stopping the air conditioner, comprising:

[0128] S610, the processor determines the stop type in response to the stop request, and the stop type includes fault stop.

[0129] S620, in the case of fault stop, the discharge pressure P of the compressor is obtained.

[0130] S630, the processor determines whether P is less than or equal to P1, and the determination result is yes, entering S640, and the determination result is no, entering S660.

[0131] S640, the opening of the electronic expansion valve is adjusted to the maximum opening, and the discharge pressure P of the compressor is obtained again.

[0132] S650, the processor determines whether P is less than or equal to P2, and the determination result is yes, entering S670, and the determination result is no, entering S660.

[0133] S660, the compressor is controlled to stop.

[0134] S670, the operating frequency of the compressor is controlled to be reduced.

[0135] Wherein, P1 is a first pressure threshold, P2 is a second pressure threshold, P1≥4MPa, 3MPa≤P2<4MPa, and P1>P2.

[0136] Optionally, in the case of P≤P2, the step of controlling the operating frequency of the compressor to be reduced comprises: in the case of P≤P2, controlling the operating frequency of the compressor to be reduced to f1, and controlling the compressor to operate at f1 for t3, and obtaining the discharge pressure P of the compressor again; in the case of P>P3, controlling the compressor to stop; in the case of P≤P3, controlling the compressor to operate normally; wherein, t3 is a third predetermined time, P3 is a third pressure threshold, and P2>P3.

[0137] In this embodiment, in the case of P≤P2, the discharge pressure of the compressor is reduced by controlling the frequency of the compressor to be reduced to f1, and controlling the compressor to operate at the frequency of f1 for t3 after the operating frequency of the compressor is reduced to f1. Whether the compressor can continue to operate is determined by obtaining the discharge pressure P again.

[0138] In the case of P>P3, it is indicated that the frequency reduction operation of the compressor is ineffective for adjusting the discharge pressure of the compressor, and the load change is still large, which does not meet the condition of continuing to operate. That is, in the case of P>P3, the compressor is directly controlled to stop to prevent the compressor from being damaged by continuing to operate under fault.

[0139] In the case of P≤P3, it is indicated that the frequency reduction operation of the compressor is effective for adjusting the discharge pressure of the compressor, and the load change after frequency reduction operation is reduced, so that the compressor can continue to operate. Therefore, in the case of P≤P3, the compressor is controlled to operate normally.

[0140] Further, the value range of P3 is: 2MPa≤P3<3MPa.

[0141] In this embodiment, 2MPa≤P3<3MPa is the exhaust pressure range that ensures the compressor can operate normally without being damaged due to failure. By limiting P3 to between 2MPa and 3MPa, the compressor can continue to operate in the case that the frequency reduction operation of the compressor is effective for the exhaust pressure regulation of the compressor, ensuring the stability of the compressor and the system.

[0142] Exemplarily, the specific values of P3 include P3=2.2MPa, 2.5MPa or 2.8MPa.

[0143] Further, the value range of t3 is: t3<30s.

[0144] In this embodiment, by limiting t2 to below 30s, the operation time of the compressor after the frequency reduction to f1 is within a reasonable range, preventing damage caused by the long operation time of the compressor in the case of a sharp load change.

[0145] Exemplarily, the specific values of t3 include t3=25s, 20s or 15s.

[0146] In combination Figure 7 As shown in the figure, the embodiment of the disclosure provides another control method for stopping the air conditioner, which comprises:

[0147] S710, the processor determines the stop type in response to the stop request, and the stop type includes a failure stop.

[0148] S720, in the case that the stop type is a failure stop, the exhaust pressure P of the compressor is obtained.

[0149] S730, the processor judges whether P is less than or equal to P1, the judgment result is yes, and S740 is entered, and the judgment result is no, and S760 is entered.

[0150] S740, the opening degree of the electronic expansion valve is adjusted to the maximum opening degree, and the exhaust pressure P of the compressor is obtained again.

[0151] S750, the processor judges whether P is less than or equal to P2, the judgment result is yes, and S770 is entered, and the judgment result is no, and S760 is entered.

[0152] S760, the compressor is controlled to stop.

[0153] S770, the operation frequency of the compressor is controlled to reduce to f1, and the compressor is controlled to keep f1 operation to t3, and the exhaust pressure P of the compressor is obtained again.

[0154] S780, the processor judges whether P is less than or equal to P3, the judgment result is yes, and S790 is entered, and the judgment result is no, and S760 is entered.

[0155] S790, controlling the compressor to run normally.

[0156] Wherein, f1 is a first preset frequency, t3 is a third preset time, P1 is a first pressure threshold, P2 is a second pressure threshold, P3 is a third pressure threshold, f1 < 40 Hz, t3 < 30 s, P1 ≥ 4 MPa, 3 MPa ≤ P2 < 4 MPa, 2 MPa ≤ P3 < 3 MPa, and P1 > P2 > P3.

[0157] In some embodiments, in response to the shutdown request, the step of determining the shutdown type comprises: obtaining a fault code corresponding to the shutdown request according to the shutdown request; and determining the shutdown type according to the fault code, wherein the shutdown type comprises a fan fault or a water pump fault.

[0158] In this embodiment, the fault code can provide prompt information about the shutdown cause, and obtaining the fault code corresponding to the shutdown request according to the shutdown request can understand the specific fault type that causes the shutdown, thereby shortening the troubleshooting time. In this way, by obtaining the fault code corresponding to the shutdown request when the shutdown request is received, the shutdown type is determined, and then the compressor is controlled to run.

[0159] Optionally, the step of obtaining the operation parameter of the air conditioner corresponding to the shutdown type according to the shutdown type further comprises: obtaining a number n of occurrences of the fan fault or the water pump fault within a preset time length.

[0160] In this embodiment, when the shutdown type is the fan fault or the water pump fault, the number n of occurrences of the fan fault or the water pump fault represents the fault occurrence frequency, and the larger n is, the more the number of occurrences of the fault within the preset time length is, and the higher the frequency is. By obtaining the number n of occurrences of the fan fault or the water pump fault within the preset time length as a parameter, the severity of the fault can be reflected, and then the compressor is controlled to shut down or run normally.

[0161] Optionally, the step of controlling the air conditioner to run according to the operation parameter further comprises: controlling the compressor to shut down when n ≥ n0; and controlling the compressor to run normally when n < n0; wherein n0 is a number threshold.

[0162] In this embodiment, when n ≥ n0, it means that the number of occurrences of the current fan fault or water pump fault of the compressor meets the condition for the compressor to shut down directly. That is, when n ≥ n0, the compressor is controlled to shut down directly, thereby avoiding the great impact of the continued operation of the compressor under the fan fault or the water pump fault on the compressor, achieving protection of the compressor, and preventing damage to the compressor caused by the fault.

[0163] In the case of n < n0, it is indicated that the number of occurrences of the current fan failure or water pump failure of the compressor does not meet the condition of direct stop of the compressor. In this way, if the compressor is directly stopped, the output effect of the air conditioner will be affected. Therefore, in the case of n < n0, the compressor is controlled to operate normally, so that the number of occurrences of the failure is within a reasonable range, and the compressor can operate normally to meet the use requirements of the equipment.

[0164] In this way, by determining that the stop type is a fan failure or a water pump failure, the number of occurrences of the fan failure or the water pump failure is obtained to determine the operating state of the compressor. According to the operating state of the compressor, it is determined whether the compressor can be directly stopped. If the compressor has more failures, the compressor can be directly stopped to prevent damage to the compressor. If the compressor has fewer failures, the compressor is controlled to operate normally, thereby improving the stability of the operation of the compressor.

[0165] Further, the value range of n0 is 5 ≥ n0 ≥ 3.

[0166] In this embodiment, the size of n0 reflects the failure bearing capacity of the compressor and the operating system when a failure occurs. By limiting n0 to be greater than or equal to 3, the failure bearing capacity of the compressor and the operating system is met. At the same time, if the determination of n0 is only performed once, there is a certain possibility of misjudgment. By limiting n0 to perform multiple verifications on the number of occurrences of the failure, the operation of the compressor can be more accurately controlled to prevent the compressor from being stopped due to system misjudgment.

[0167] Exemplarily, the specific value of n0 includes n0 = 3.

[0168] In combination Figure 8 As shown in the figure, the embodiment of the disclosure provides another control method for stopping the air conditioner, which comprises the following steps:

[0169] S810, the processor obtains a failure code corresponding to the stop request according to the stop request.

[0170] S812, the processor determines a stop type according to the failure code, and the stop type includes a load change failure, a fan failure or a water pump failure.

[0171] S820, in the case of the stop type being a load change failure, the discharge pressure P of the compressor is obtained.

[0172] S822, the processor judges whether P is less than or equal to P1, the judgment result is yes, and S830 is entered, and the judgment result is no, and S842 is entered.

[0173] S830, the electronic expansion valve opening is adjusted to the maximum opening, and the discharge pressure P of the compressor is obtained again.

[0174] S840, the processor determines whether P is less than or equal to P2, and the determination result is yes, proceeding to S850, and the determination result is no, proceeding to S842.

[0175] S842, the compressor is controlled to stop.

[0176] S850, the operating frequency of the compressor is controlled to decrease to f1, and the compressor is controlled to keep operating at f1 until t3, and the exhaust pressure P of the compressor is obtained again.

[0177] S860, the processor determines whether P is less than or equal to P3, and the determination result is yes, proceeding to S862, and the determination result is no, proceeding to S842.

[0178] S862, the compressor is controlled to operate normally.

[0179] S870, in the case that the stop type is fan failure or water pump failure, the number n of occurrences of the fan failure or the water pump failure within a preset time length is obtained.

[0180] S880, the processor determines whether n is greater than or equal to n0, and the determination result is yes, proceeding to S882, and the determination result is no, proceeding to S884.

[0181] S882, the compressor is controlled to stop.

[0182] S884, the compressor is controlled to operate normally.

[0183] In the embodiments, f1 is a first preset frequency, t3 is a third preset time, P1 is a first pressure threshold, P2 is a second pressure threshold, P3 is a third pressure threshold, n0 is a number threshold, f1 < 40 Hz, t3 < 30 s, P1 ≥ 4 MPa, 3 MPa ≤ P2 < 4 MPa, 2 MPa ≤ P3 < 3 MPa, and P1 > P2 > P3, n0 ≥ 3.

[0184] Optionally, the step of controlling the operating frequency of the compressor to decrease comprises: controlling the compressor to decrease in frequency according to a preset amplitude.

[0185] In the embodiments, the operating frequency of the compressor is controlled to decrease according to the preset amplitude, so that the operating frequency of the compressor does not decrease too much at one time, thereby preventing the working state of the compressor from being affected due to a large decrease in the operating frequency.

[0186] Optionally, the preset amplitude is in a range of 0.8 Hz / s to 1.5 Hz / s, and the specific value of the preset amplitude comprises 0.8 Hz / s, 1 Hz / s or 1.5 Hz / s.

[0187] In combination with Figure 9As shown, the embodiment of the present disclosure provides a control device 200 for shutdown of an air conditioner, comprising a type determination module 21, a parameter acquisition module 22 and a running control module 23. The type determination module 21 is configured to determine a shutdown type in response to a shutdown request; the parameter acquisition module 22 is configured to acquire a running parameter of the air conditioner corresponding to the shutdown type according to the shutdown type; and the running control module 23 is configured to control running of the air conditioner according to the running parameter.

[0188] By using the control device for shutdown of an air conditioner provided by the embodiment of the present disclosure, the shutdown type is determined according to the shutdown request. The running parameter corresponding to the shutdown type is adjusted to control the air conditioner to perform the shutdown operation. In this way, the running parameter of the air conditioner can be adjusted according to the shutdown type, so that the running parameter can meet the shutdown condition corresponding to the current shutdown type, thereby effectively reducing the impact of the shutdown on the air conditioner and improving the overall safety performance and working reliability of the air conditioner.

[0189] In combination Figure 10 As shown, the embodiment of the present disclosure provides an air conditioner 300, comprising a processor 100 and a memory 101. Optionally, the device can further comprise a communication interface 102 and a bus 103. The processor 100, the communication interface 102 and the memory 101 can complete communication with each other through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call the logical instructions in the memory 101 to execute the method for controlling shutdown of an air conditioner in the above-mentioned embodiment.

[0190] In addition, the logical instructions in the memory 101 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0191] The memory 101 as a kind of computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 100 executes the program instructions / modules stored in the memory 101, thereby performing function application and data processing, i.e. implementing the method for controlling shutdown of an air conditioner in the above-mentioned embodiment.

[0192] The memory 101 can include a program storage area and a data storage area, wherein the program storage area can store an operating system and application programs required by at least one function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 101 can include a high-speed random access memory and can also include a non-volatile memory.

[0193] In combinationFigure 11 As shown, the embodiment of the present disclosure provides an air conditioner 100, comprising: an air conditioner body, and the control device 200 for air conditioner shutdown described above. The control device 200 for air conditioner shutdown is installed on the product body. The installation relationship described herein is not limited to placing in the product, but also includes installation connection with other components of the product, including but not limited to physical connection, electrical connection or signal transmission connection, etc. Those skilled in the art can understand that the control device 200 for air conditioner shutdown can be adapted to the feasible product body, and then realize other feasible embodiments.

[0194] In some embodiments, a readable storage medium is provided, comprising a stored program, wherein the program performs the control method for air conditioner shutdown when running.

[0195] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0196] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, etc. Various media that can store program codes, or a transitory storage medium.

[0197] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0198] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0199] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.) can be implemented in other manners. For example, the described apparatus embodiments are merely schematic. For example, the division of the units is merely a logical function division. There can be another division manner for the actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, or among them, can be indirect couplings or communication connections through some interfaces, devices, or units, and can be in electric, mechanical, or other forms.

[0200] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions, and operations of the system, method, and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment, or a part of code, which contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for shutdown of an air conditioner, characterized by, Comprising: in response to a shutdown request, determining a shutdown type; according to the shutdown type, obtaining the operating parameters of the air conditioner corresponding to the shutdown type, including: in the case of a fault shutdown, obtaining the discharge pressure P of the compressor; according to the operating parameters, controlling the operation of the air conditioner, including: in the case of P>P1, controlling the compressor to stop; in the case of P≤P1, controlling the discharge pressure of the compressor to decrease; wherein P1 is a first pressure threshold.

2. The control method for air conditioner shutdown according to claim 1, wherein the step of obtaining the operating parameters of the air conditioner corresponding to the shutdown type according to the shutdown type further comprises: in the case of normal shutdown, obtaining the operating frequency f and the discharge temperature T of the compressor; the step of controlling the operation of the air conditioner according to the operating parameters further comprises: in the case of f≤f0 and T≤T1, controlling the compressor to stop; in the case of f≤f0 and T>T1, controlling the operating frequency of the compressor to decrease; in the case of f>f0, controlling the operating frequency of the compressor to decrease; wherein f0 is a frequency threshold, and T1 is a first temperature threshold.

3. The control method for air conditioner shutdown according to claim 2, wherein the step of controlling the operating frequency of the compressor to decrease in the case of f≤f0 and T>T1 comprises: in the case of f≤f0 and T>T1, controlling the operating frequency of the compressor to decrease to f1, and controlling the compressor to keep f1 running for t1, and then controlling the compressor to stop; wherein f1 is a first preset frequency, and t1 is a first preset time.

4. The control method for air conditioner shutdown according to claim 2, wherein the step of controlling the operating frequency of the compressor to decrease in the case of f>f0 comprises: in the case of f>f0, controlling the operating frequency of the compressor to decrease to f2, and controlling the compressor to keep f2 running for t2, and then obtaining the discharge temperature T again; in the case of T≤T2, controlling the compressor to stop; in the case of T>T2, controlling the operating frequency of the compressor to decrease to f1, and controlling the compressor to keep f1 running for t1, and then controlling the compressor to stop; wherein f2 is a second preset frequency, t2 is a second preset time, T2 is a second temperature threshold, and f0>f2>f1.

5. The control method for air conditioner shutdown of claim 1, wherein, the step of controlling the discharge pressure of the compressor to decrease in the case of P≤P1 comprises: in the case of P≤P1, adjusting the opening degree of the electronic expansion valve to the maximum opening degree, and obtaining the discharge pressure P of the compressor again; in the case of P>P2, controlling the compressor to stop; in the case of P≤P2, controlling the operating frequency of the compressor to decrease; wherein P2 is a second pressure threshold, and P1>P2.

6. The control method for air conditioner shutdown according to claim 5, wherein the step of controlling the operating frequency of the compressor to decrease in the case of P≤P2 comprises: in the case of P≤P2, controlling the operating frequency of the compressor to decrease to f1, and controlling the compressor to keep f1 running for t3, and then obtaining the discharge pressure P of the compressor again; in the case of P>P3, controlling the compressor to stop; in the case of P≤P3, controlling the compressor to operate normally; wherein t3 is a third preset time, P3 is a third pressure threshold, and P2>P3.

7. The control method for air conditioner shutdown according to claim 1, wherein the shutdown type includes fan failure or water pump failure. The step of acquiring the operation parameter of the air conditioner corresponding to the stop type comprises: Acquiring the number n of occurrences of fan failure or water pump failure within a preset time length; The step of controlling the air conditioner to operate according to the operation parameter comprises: In the case of n≥n0, controlling the compressor to stop; In the case of n The processor is configured to execute the control method for air conditioner stop as claimed in any one of claims 1 to 7 when running program instructions.

8. An air conditioner comprising a processor and a memory having stored therein program instructions, the air conditioner being characterized by: The readable storage medium comprises a stored program, wherein the program executes the control method for air conditioner stop as claimed in any one of claims 1 to 7 when running.

9. A readable storage medium characterized by ​

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