Air conditioner and control method thereof, storage medium, program product and execution device

Abstract

The embodiment of the invention provides an air conditioner and a control method thereof, a storage medium, a program product and an execution device, and relates to the technical field of air conditioners, the control method is applied to the air conditioner, and the air conditioner comprises a first temperature detection device used for detecting the temperature of an outdoor heat exchanger. The control method comprises the steps that the working state of the first temperature detection device is detected; when it is detected that the working state of the first temperature detection device is an abnormal state, the temperature of the outdoor heat exchanger is assigned according to the outdoor environment temperature value; and the air conditioner is correspondingly controlled to perform fault-tolerant operation according to the assigned temperature of the outdoor heat exchanger, so that after the first temperature detection device is damaged, the air conditioner can also operate, and the basic refrigerating and heating requirements of a user are met.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular to an air conditioner and a control method thereof, a storage medium, a program product, and an execution device. Background Art

[0002] Current variable-frequency air conditioners generally have multiple temperature sensors on the outdoor side to detect the temperature of multiple locations on the outdoor side, such as an outer ring sensor for detecting the outdoor ambient temperature, an exhaust sensor for detecting the compressor exhaust temperature, an outer disk sensor for detecting the outdoor heat exchanger temperature, etc. The variable-frequency air conditioner then determines the next operating parameters of the variable-frequency air conditioner based on the detected multiple temperature parameters, such as determining the operating frequency of the compressor;

[0003] However, once one or more of the multiple temperature sensors are abnormal, especially the external disk sensor that detects the temperature of the outdoor heat exchanger, which is combined with the exhaust temperature of the compressor to provide feedback on the load of the compressor, once it is damaged, the frequency conversion module of the variable frequency air conditioner cannot control the frequency conversion of the compressor of the variable frequency air conditioner. Therefore, the current common practice is to shut down the machine directly, resulting in users being unable to use it, especially in extreme weather conditions, affecting the user experience and the stability of the air conditioner operation. Summary of the Invention

[0004] The embodiments of the present application provide an air conditioner and a control method thereof, a storage medium, a program product, and an execution device, aiming to improve the stability of an existing air conditioner.

[0005] In one aspect, an embodiment of the present application provides a method for controlling an air conditioner. The method is applied to an air conditioner including a first temperature detection device for detecting a temperature of an outdoor heat exchanger. The method includes:

[0006] detecting a working state of the first temperature detection device;

[0007] When it is detected that the working state of the first temperature detection device is abnormal, assigning a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value;

[0008] The air conditioner is controlled to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature.

[0009] In some preferred embodiments, the step of assigning a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value includes:

[0010] Correct the outdoor ambient temperature value;

[0011] The corrected outdoor ambient temperature value is assigned as the outdoor heat exchanger temperature.

[0012] In some preferred embodiments, the step of correcting the outdoor ambient temperature value includes:

[0013] Select the corresponding correction value according to the operating mode of the air conditioner and the size of the outdoor ambient temperature;

[0014] Use the correction value to correct the outdoor ambient temperature value.

[0015] In some preferred embodiments, the step of selecting a corresponding correction value according to the operating mode of the air conditioner and the value of the outdoor ambient temperature includes:

[0016] When the air conditioner is in cooling mode, the correction value is a positive value, and the correction value corresponding to the temperature interval is selected according to the temperature interval to which the outdoor ambient temperature value belongs, and the higher the temperature interval, the larger the corresponding correction value; and / or,

[0017] When the air conditioner is in heating mode, the correction value is a negative value. The correction value corresponding to the temperature interval is selected according to the temperature interval to which the outdoor ambient temperature value belongs. The higher the temperature interval, the larger the corresponding correction value.

[0018] In some preferred embodiments, after the step of controlling the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature, the method further includes:

[0019] When the air conditioner is in cooling mode, the refrigerant pressure in the refrigerant pipe of the outdoor heat exchanger and the operating status of the compressor are obtained;

[0020] When the refrigerant pressure is lower than the pressure threshold and the compressor is shut down for protection, the assigned outdoor heat exchanger temperature is lowered to increase the load of the compressor; and / or,

[0021] When the refrigerant pressure is greater than or equal to the pressure threshold, the assigned outdoor heat exchanger temperature is increased to reduce the load on the compressor.

[0022] In some preferred embodiments, after the step of controlling the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature, the method further includes:

[0023] When the air conditioner is in heating mode, determine whether defrosting is required when obtaining the outdoor ambient temperature;

[0024] When defrosting is required, obtaining the operating time corresponding to the outdoor ambient temperature;

[0025] After the corresponding operating time of fault-tolerant operation, the air conditioner is controlled to start defrosting.

[0026] In some preferred embodiments, when the air conditioner is in heating mode, the air conditioner stores a plurality of temperature intervals, the plurality of temperature intervals including a first temperature interval including 0°C, and a second temperature interval and a third temperature interval disposed adjacent to the first temperature interval, wherein the temperature of the second temperature interval is greater than the temperature of the third temperature interval, and the operating time corresponding to the first temperature interval is shorter than the operating time corresponding to the third and second temperature intervals;

[0027] The step of obtaining the operating time corresponding to the outdoor ambient temperature includes:

[0028] Determine the temperature range corresponding to the outdoor ambient temperature, and determine the operating time according to the temperature range.

[0029] In some preferred embodiments, after the step of controlling the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature, the method further includes:

[0030] Get the total fault-tolerant operation time of the air conditioner;

[0031] When the total fault-tolerant operation time of the air conditioner exceeds a second preset threshold, the air conditioner is controlled to shut down.

[0032] In a second aspect, an embodiment of the present application provides an air conditioner, including a control device;

[0033] The control device includes: a memory, a processor, and a control program of the liquid storage component stored in the memory and runnable on the processor. When the control device is executed by the processor, the steps of the air conditioner control method as described above are implemented.

[0034] In a third aspect, an embodiment of the present application provides a storage medium, which is a storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the air conditioner control method as described in any one of the above descriptions are implemented.

[0035] In a fourth aspect, an embodiment of the present application provides a program product, which includes a computer program. When the computer program is executed by a processor, the steps of the air conditioner control method as described in any one of the above are implemented.

[0036] In a fifth aspect, an embodiment of the present application provides an execution device, including:

[0037] A detection module, configured to detect a working state of the first temperature detection device;

[0038] an assignment module, configured to assign a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value when detecting that the working state of the first temperature detection device is abnormal; and

[0039] An execution module is used to control the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature.

[0040] The embodiment of the present application assigns a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value when it is detected that the working state of the first temperature detection device is abnormal; and controls the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature, so that the variable frequency air conditioner can still operate fault-tolerantly after the first temperature detection device for detecting the outdoor heat exchanger temperature fails, thereby meeting the user's basic cooling and heating needs, and improving the user experience and the long-term stability of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 A flow chart of a first embodiment of the air conditioner control method of the present application;

[0043] Figure 2 A flow chart of a second embodiment of the air conditioner control method of the present application;

[0044] Figure 3 A flowchart of a third embodiment of the air conditioner control method of the present application is provided;

[0045] Figure 4 This is a schematic diagram of the module structure of the execution device of the embodiment of the present application;

[0046] Figure 5 Schematic diagram of the device structure of the hardware operating environment involved in the air conditioner control method in the embodiment of the present application.

[0047] Description of Figure Numbers:

[0048] 10. Detection module; 20. Assignment module; 30. Execution module;

[0049] 1001. Processing device; 1002. ROM; 1003. Storage device; 1004. RAM; 1005. Bus; 1006. I / O interface; 1007. Input device; 1008. Output device; 1009. Communication device. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0051] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0052] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0053] The use of "suitable for" or "configured to" in this application is intended to be open and inclusive language, and does not exclude devices that are adapted or configured to perform additional tasks or steps. In addition, the use of "based on" is intended to be open and inclusive, as a process, step, calculation, or other action that is "based on" one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0054] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that one of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0055] Current variable-frequency air conditioners generally have multiple temperature sensors on the outdoor side to detect the temperature of multiple locations on the outdoor side, such as an outer ring sensor for detecting the outdoor ambient temperature, an exhaust sensor for detecting the compressor exhaust temperature, an outer disk sensor for detecting the outdoor heat exchanger temperature, etc. The variable-frequency air conditioner then determines the next operating parameters of the variable-frequency air conditioner based on the detected multiple temperature parameters, such as determining the operating frequency of the compressor;

[0056] However, once one or more of the multiple temperature sensors are abnormal, especially the external disk sensor that detects the temperature of the outdoor heat exchanger, which is combined with the exhaust temperature of the compressor to provide feedback on the load of the compressor, once it is damaged, the frequency conversion module of the variable frequency air conditioner cannot control the frequency conversion of the compressor of the variable frequency air conditioner. Therefore, the current common practice is to shut down the machine directly, resulting in users being unable to use it, especially in extreme weather conditions, affecting the user experience and the stability of the air conditioner operation.

[0057] Based on this, the embodiment of the present application provides a method for controlling an air conditioner, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the air conditioner control method of the present application.

[0058] In this embodiment, the air conditioner control method includes steps S10 to S30:

[0059] Step S10, detecting the working state of the first temperature detection device;

[0060] Specifically, the working state of the first temperature detection device can be divided into two states: normal working state and abnormal state. The specific detection can be to receive the temperature value detected by the first temperature detection device. When the temperature value falls within the normal temperature range, it is determined that the working state of the first temperature detection device is a normal working state. When the temperature value does not fall within the normal temperature range, it is determined that the first temperature detection device is in an abnormal state. Of course, since the current size of the temperature sensor is different when it is working normally and when an abnormality occurs, it is also possible to detect the working current of the first temperature detection device, and judge the working state of the first temperature detection device by detecting the current size, etc., which is not limited here.

[0061] Furthermore, in some embodiments, the outdoor heat exchanger temperature T1 detected by the first temperature detection device is received in real time, and the set reference range of the outdoor heat exchanger temperature is H℃~I℃. When H≤T1≤I, the temperature detected by the first temperature detection device is within the normal range, the first temperature detection device is normal, and the air conditioner operates normally and operates according to the user settings.

[0062] When H>T1 or T1>I, it indicates that the temperature detected by the first temperature detection device is abnormal.

[0063] It should be noted that the specific implementation form of the first temperature detection device is not limited, and can be in the form of a temperature sensor, a temperature probe, etc., which is not limited here. The range of H℃~I℃ in the above embodiment can be actually set according to the application range of the air conditioner, and can be a fixed range or a non-fixed range, which is not limited here. Specifically, in some embodiments, -25℃≤H≤15℃, 15℃<I≤70℃, and correspondingly, H℃~I℃ can be -25℃~15℃, -25℃~70℃, or -15℃~65℃, etc., which is not limited here.

[0064] It can be understood that, due to the execution of step S10, the working state of the first temperature detection device can be detected in real time, and corresponding processing can be quickly performed when an abnormality occurs.

[0065] In addition, when an abnormality is detected, in some embodiments, a fault code can be sent to the internal display and data can be recorded and uploaded to the cloud, thereby reducing after-sales maintenance response time.

[0066] Step S20, when it is detected that the working state of the first temperature detection device is abnormal, assigning a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value;

[0067] It should be noted that during the operation of the air conditioner, the refrigerant exchanges heat with the outdoor ambient temperature in the outdoor heat exchanger. During the heat exchange process, the temperature of the refrigerant in the outdoor heat exchanger will slowly approach the outdoor ambient temperature, and the outdoor ambient temperature near the outdoor unit of the air conditioner will also approach the temperature of the refrigerant in the outdoor heat exchanger to a certain extent. Therefore, the difference between the temperature value of the outdoor environment and the temperature value of the outdoor heat exchanger is within a certain range. To a certain extent, the temperature value of the outdoor environment can also represent the temperature value of the outdoor heat exchanger.

[0068] Specifically, the specific implementation form of assigning the outdoor heat exchanger temperature according to the outdoor ambient temperature value is not restricted. It can be to directly assign the outdoor ambient temperature value to the outdoor heat exchanger temperature, or to first correct the outdoor ambient temperature value and then use the corrected outdoor ambient temperature value as the outdoor heat exchanger temperature. The specific correction method is not restricted. It can be to build a data model, or to build a correspondence table between the outdoor ambient temperature value and the outdoor heat exchanger temperature, or to make corrections based on a coefficient, etc., which are not limited here.

[0069] Step S30: Controlling the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature.

[0070] Specifically, when the working state of the first temperature detection device is abnormal, the outdoor heat exchanger temperature detected by the first temperature detection device will be less than H or greater than I, that is, it falls outside the range, or there is no feedback to detect the outdoor heat exchanger temperature at all. According to the original temperature value or when the outdoor heat exchanger temperature is not detected, the air conditioner cannot operate. After performing the above-mentioned assignment steps, the outdoor heat exchanger temperature detected by the first temperature detection device is returned to the range H~I. Subsequently, the air conditioner can directly select the operating parameters of the air conditioner according to the assigned outdoor heat exchanger temperature, such as the frequency of the compressor, the frequency of the fan, etc., so that the air conditioner can operate in a fault-tolerant manner, so that the air conditioner will not be unusable due to the abnormal operation of the first temperature detection device.

[0071] More specifically, the air conditioner is controlled to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature. This can be done directly based on a reference table, for example, how much ℃ corresponds to how much operating frequency of the compressor, or it can be done directly based on a control model, where the assigned outdoor heat exchanger temperature is input as an input value into the control model, and the control model outputs the operating parameters of the air conditioner, thereby controlling the air conditioner to perform fault-tolerant operation, and so on. There is no limitation here.

[0072] The embodiment of the present application assigns a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value when it is detected that the working state of the first temperature detection device is abnormal; and controls the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature, so that the variable frequency air conditioner can still operate fault-tolerantly after the first temperature detection device for detecting the outdoor heat exchanger temperature fails, thereby meeting the user's basic cooling and heating needs, and improving the user experience and the long-term stability of the air conditioner.

[0073] Reference Figure 2 , Figure 2 This is a flow chart of a second embodiment of the air conditioner control method of the present application.

[0074] In a feasible implementation, step S20 may include steps S21 to S22:

[0075] Step S21: Correcting the outdoor ambient temperature value;

[0076] Step S22: assigning the corrected outdoor ambient temperature value as the outdoor heat exchanger temperature;

[0077] In cooling mode, the refrigerant flowing out of the compressor first changes from high-temperature and high-pressure refrigerant to low-temperature and high-pressure refrigerant in the outdoor heat exchanger. The refrigerant releases heat in the outdoor heat exchanger. Therefore, the outdoor ambient temperature is generally higher than the outdoor heat exchanger temperature.

[0078] In heating mode, the refrigerant flowing out of the compressor first changes from high-temperature and high-pressure refrigerant to low-temperature and high-pressure refrigerant in the indoor heat exchanger. The refrigerant releases heat in the indoor heat exchanger and then absorbs heat in the outdoor heat exchanger. Therefore, the outdoor ambient temperature is generally lower than the outdoor heat exchanger temperature.

[0079] To sum up, when the air conditioner is actually running, there is generally a certain difference between the outdoor ambient temperature and the outdoor heat exchanger temperature. If the outdoor ambient temperature is directly assigned to the outdoor heat exchanger temperature, the air conditioner can also operate, but there is a certain gap with the actual outdoor heat exchanger temperature value, and the cooling and heating effects of the air conditioner are poorly matched with user needs.

[0080] In order to make the outdoor ambient temperature value closer to the outdoor heat exchanger temperature, the outdoor ambient temperature value can be corrected. Specifically, when the air conditioner is in cooling mode, the outdoor ambient temperature value can be increased to make the outdoor heat exchanger temperature closer to the actual temperature after assignment. In heating mode, the outdoor ambient temperature value can be lowered to make the outdoor heat exchanger temperature closer to the actual temperature after assignment.

[0081] In the solution of this embodiment, the outdoor ambient temperature value is corrected so that the corrected outdoor ambient temperature value can be closer to the actual outdoor heat exchanger temperature. The assigned outdoor heat exchanger temperature is then used to control the air conditioner for fault-tolerant operation, which can better meet the user's cooling and heating needs and protect the air conditioner's compressor and heat exchanger.

[0082] For more details, see Figure 3 In a feasible implementation, step S21 may include steps S211 to S212:

[0083] Step S211: selecting a corresponding correction value according to the operating mode of the air conditioner and the value of the outdoor ambient temperature;

[0084] In the above embodiment, it has been discussed that in cooling mode, the outdoor ambient temperature value is generally higher than the outdoor heat exchanger temperature, and in heating mode, the outdoor ambient temperature value is generally lower than the outdoor heat exchanger temperature. Therefore, by selecting the corresponding correction value according to the operating mode of the air conditioner, it can be determined whether to increase or decrease the outdoor ambient temperature value, so that the corrected outdoor ambient temperature value is closer to the actual outdoor heat exchanger temperature.

[0085] The specific method of selecting the corresponding correction value according to the size of the outdoor ambient temperature value is not limited. It can be directly selected in the form of a function, for example, the outdoor ambient temperature value is used as the input value of the function, and the function outputs the corresponding correction value. It can also be directly constructing a relationship table between the outdoor ambient temperature value and the correction value, and searching according to the relationship table. It can also be dividing the set outdoor ambient temperature range into intervals, each interval corresponding to a correction value, and when the outdoor ambient temperature falls into that interval, the correction value corresponding to the interval is selected, and so on. There is no limitation here.

[0086] Step S212: Correcting the outdoor ambient temperature using the correction value;

[0087] The specific correction method is not limited. It can be directly adding or subtracting the correction value from the outdoor ambient temperature value. Of course, when the correction value is a coefficient value, it can also be directly multiplied or multiplied by the correction value and the outdoor ambient temperature value to ultimately obtain the desired corrected outdoor ambient temperature value. In some embodiments, the correction method is to add the outdoor ambient temperature value to the correction value.

[0088] After obtaining the corresponding correction value, the correction value is used to correct the outdoor ambient temperature value, so that the corrected outdoor ambient temperature value can be closer to the actual temperature value of the outdoor heat exchanger, and the operation of the air conditioner can be better controlled.

[0089] Furthermore, in some embodiments, step S211 includes:

[0090] Step S2111: When the air conditioner is in cooling mode, the correction value is a positive value. The correction value corresponding to the temperature interval is selected according to the temperature interval to which the outdoor ambient temperature value belongs. The higher the temperature interval, the larger the corresponding correction value.

[0091] It should be noted that, in the solution of this embodiment, the correction value is used to perform correction by adding the outdoor ambient temperature value to the correction value. When the air conditioner is in cooling mode, the correction value is a positive value, that is, the subsequent correction of the outdoor ambient temperature value is to increase the outdoor ambient temperature value, so that it is closer to the actual temperature value of the outdoor heat exchanger.

[0092] According to the temperature range to which the outdoor ambient temperature value belongs, the correction value corresponding to the temperature range is selected. Compared with function selection or the scheme in which each temperature value corresponds to a correction value, this can effectively reduce the storage amount of the correction value and the amount of calculation when determining the correction value, thereby reducing the hardware requirements.

[0093] It needs to be explained that in cooling mode, the load of the air conditioner outdoor unit is generally large. In cooling mode, the smaller the temperature value of the outdoor heat exchanger is, the greater the operating frequency and load of the compressor will be. When the outdoor ambient temperature is higher, the compressor is more likely to have frequency limiting protection. If, when the outdoor environment is very high, we also give the outdoor ambient temperature a relatively small correction value, the compressor will work at a larger load, and the refrigerant discharged by the compressor cannot perform good heat exchange outdoors, which can easily cause damage to the compressor.

[0094] Therefore, the higher the temperature range, the larger the corresponding correction value. When the outdoor ambient temperature is high, the compressor can work at a smaller load to protect the compressor. When the outdoor ambient temperature is low, the compressor can work at a larger load to meet the user's cooling needs.

[0095] The number of temperature intervals is not limited and can be two, three, four, etc., and is not limited here.

[0096] The following uses the cooling mode with three temperature ranges as an example to illustrate:

[0097] When Touter loop ≥ e, the control unit assigns the outdoor heat exchanger temperature according to T0 = Touter loop + f1 for fault-tolerant operation, where Touter loop is the outdoor ambient temperature, f1 is the correction value corresponding to the interval greater than e, and T0 is the assigned outdoor heat exchanger temperature;

[0098] When g≤Touterloop<e, the control unit assigns the outdoor heat exchanger temperature according to T0=Touterloop+f2 for fault-tolerant operation, where f2 is the correction value corresponding to the temperature range g~e;

[0099] When Touter loop < g, the control unit assigns the outdoor heat exchanger temperature according to T0 = Touter loop + f0 for fault-tolerant operation, and f0 is a correction value corresponding to the interval less than g.

[0100] When Touter loop ≥ e, the outdoor ambient temperature falls within the highest temperature range, corresponding to f1>f2>f0. That is, at this time, the correction value is the largest correction value among the three ranges. Therefore, the compressor can operate at a lower frequency and even trigger the frequency limit protection in advance, thereby protecting the compressor and avoiding damage to the compressor.

[0101] When g≤Touter loop<e, the outdoor ambient temperature falls into the middle range, and the corresponding compressor operates at the middle load and frequency, taking into account both the protection of the compressor and the satisfaction of the user's cooling needs.

[0102] When Touter loop < g, the outdoor ambient temperature falls into the lowest range. Within this range, the refrigerant flowing out of the compressor can better exchange heat with the outdoor air. Therefore, it can operate at a higher frequency without damaging the compressor. In this regard, f0 < f2 < f1, that is, the correction value is smaller, allowing the compressor to operate at a higher frequency and better meet the user's cooling needs.

[0103] The values ​​of each parameter are not restricted and can be any values ​​according to actual needs. No limitation is made here. In one embodiment, 48°C≤e≤56°C, 30°C≤g≤47°C.

[0104] In some embodiments, in order to avoid damage to the compressor in the cooling mode, after step S30, the method may further include:

[0105] Step S40: When the air conditioner is in cooling mode, obtaining the refrigerant pressure in the refrigerant pipe of the outdoor heat exchanger and the operating status of the compressor;

[0106] Generally speaking, in cooling mode, the pressure on the outdoor side of the air conditioner is higher. If the assigned value for the outdoor heat exchanger temperature is not excessively biased, it can easily damage the compressor or cause the compressor to operate too slowly, failing to meet the user's cooling needs. Therefore, the rationality of the assigned value can be determined by obtaining the refrigerant pressure in the refrigerant pipe of the outdoor heat exchanger and the operating status of the compressor. The compressor operating status can include whether a protective shutdown has occurred and the number of protective shutdowns.

[0107] Step S50: When the refrigerant pressure is less than the pressure threshold and the compressor is shut down for protection, the assigned outdoor heat exchanger temperature is lowered to increase the load of the compressor;

[0108] It should be noted that when the refrigerant pressure is lower than the pressure threshold, it means that the actual load of the compressor is not large at this time. If the compressor shuts down for protection, it means that there are unreasonable places in our assignment. We can appropriately increase the load of the compressor to avoid the frequency limiting protection of the compressor on the one hand, and on the other hand, further meet the user's cooling needs.

[0109] Specifically, taking the three temperature range solutions mentioned above as an example, when the refrigerant pressure is lower than the pressure threshold and the compressor is shut down for protection, the correction value can be further adjusted to f3, and f3<f0<f2<f1, thereby reducing the assigned outdoor heat exchanger temperature and increasing the load of the compressor.

[0110] Corresponding to the present embodiment, when the refrigerant pressure is greater than the pressure threshold, you can choose not to adjust, or you can choose to adjust, which is not limited here.

[0111] In some embodiments, after step S30, the method may further include:

[0112] Step S40: When the air conditioner is in cooling mode, obtaining the refrigerant pressure in the refrigerant pipe of the outdoor heat exchanger and the operating status of the compressor;

[0113] Step S60: When the refrigerant pressure is greater than or equal to the pressure threshold, the assigned outdoor heat exchanger temperature is increased to reduce the load of the compressor.

[0114] It should be noted that when the refrigerant pressure is greater than or equal to the pressure threshold, it means that the load on the compressor is already very large and the compressor is easily damaged. Therefore, the assigned outdoor heat exchanger temperature is increased to reduce the load on the compressor, thereby protecting the compressor.

[0115] Specifically, taking the three temperature range solutions mentioned above as an example, when the refrigerant pressure is greater than or equal to the pressure threshold, the correction value can be further adjusted to f4, and f0<f2<f1<f4, thereby reducing the assigned outdoor heat exchanger temperature and increasing the load of the compressor.

[0116] Corresponding to the present embodiment, when the refrigerant pressure is less than or equal to the pressure threshold, you can choose not to adjust, or you can choose to adjust, which is not limited here.

[0117] In some embodiments, step S211 may also include:

[0118] Step S2112: When the air conditioner is in heating mode, the correction value is a negative value. According to the temperature range to which the outdoor ambient temperature value belongs, the correction value corresponding to the temperature range is selected, and the higher the temperature range, the larger the corresponding correction value.

[0119] It should be noted that, in the solution of this embodiment, the correction value is used to make corrections by adding the outdoor ambient temperature value to the correction value. When the air conditioner is in heating mode, the correction value is a negative value, that is, the subsequent correction of the outdoor ambient temperature value is to lower the outdoor ambient temperature value, so that it is closer to the actual temperature value of the outdoor heat exchanger.

[0120] According to the temperature range to which the outdoor ambient temperature value belongs, the correction value corresponding to the temperature range is selected. Compared with function selection or the scheme in which each temperature value corresponds to a correction value, this can effectively reduce the storage amount of the correction value and the amount of calculation when determining the correction value, thereby reducing the hardware requirements.

[0121] The higher the temperature value of the temperature interval, the larger the corresponding correction value. Since the correction value is a negative value, that is, the higher the temperature interval, the smaller the temperature reduction, and the lower the temperature interval, the larger the temperature reduction. For example, if there are temperature intervals 1, 2 and 3 from high to low, the correction value corresponding to temperature interval 1 can be -1°C, the correction value corresponding to temperature interval 2 at the middle temperature can be -2°C, and the correction value corresponding to temperature interval 3 at the lowest temperature can be -3°C.

[0122] It's important to explain that in heating mode, the refrigerant flowing out of the compressor first dissipates heat and cools down in the indoor heat exchanger before absorbing heat in the outdoor heat exchanger. The lower the temperature in the outdoor heat exchanger, the more heat is dissipated in the indoor heat exchanger, and the better the heating effect. Therefore, in heating mode, the lower the temperature of the outdoor heat exchanger, the greater the load on the compressor.

[0123] The following takes the heating mode with four temperature ranges as an example for explanation:

[0124] When Touterloop ≥ a, the control unit assigns the outdoor heat exchanger temperature according to T0 = Touterloop - X for fault-tolerant operation;

[0125] When b≤Touterloop<a, the control unit assigns the outdoor heat exchanger temperature according to T0=Touterloop-X-1 for fault-tolerant operation;

[0126] When c<Touter loop ≤ b, the control unit assigns the outdoor heat exchanger temperature according to T0=Touter loop-X-2 for fault-tolerant operation;

[0127] When Touter loop ≤ c, the control unit assigns the outdoor heat exchanger temperature according to T0 = Touter loop - X-3 for fault-tolerant operation;

[0128] In this embodiment, X can be a certain value, -X is the correction value when Touter ring ≥ a, -X-1 is the correction value when b ≤ Touter ring < a, -X-2 is the correction value when c < Touter ring ≤ b, and -X-3 is the correction value when Touter ring ≤ c. Specifically, the values ​​of X, a, b, and c can be selected according to actual conditions. In one embodiment, 5℃≤X≤7℃, 8℃≤a≤10℃, 1℃≤b≤6℃, and -10℃≤c≤0℃.

[0129] Corresponding to the solution of this embodiment, the smaller the temperature range of the outdoor ambient temperature is, the smaller the corresponding correction value is, and since the correction value is a negative value, the greater the actual temperature change is, the greater the load of the compressor is, thereby better meeting the user's heating needs.

[0130] Furthermore, in the heating mode, there is a phenomenon of frost on the outdoor heat exchanger, thereby affecting the heating effect of the air conditioner. In some embodiments, after the step of controlling the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature, the method further includes:

[0131] Step S70: When the air conditioner is in heating mode, determining whether defrosting is required based on the obtained outdoor ambient temperature;

[0132] It's understandable that current air conditioners determine defrost based on the temperature of the outdoor heat exchanger. However, if the first temperature detection device is operating abnormally, it means the accurate outdoor heat exchanger temperature cannot be accurately obtained. Therefore, making this determination based on the outdoor heat exchanger temperature is likely to result in a misjudgment. Determining defrost based on the outdoor ambient temperature can be improved, thereby improving the accuracy of the determination.

[0133] Specifically, whether defrosting is required can be determined based on the outdoor ambient temperature. When the outdoor ambient temperature is much higher than 0°C, such as 15°C or 30°C, generally speaking, defrosting of the outdoor heat exchanger is not required.

[0134] Taking the above four temperature ranges as an example, in the first temperature range, Touter loop ≥ a, 8℃≤a≤10℃, that is, Touter loop ≥8℃. At this temperature, it is still a long way from 0℃, and the temperature of the outdoor heat exchanger after assignment is also relatively high. Therefore, it is difficult for the outdoor heat exchanger to frost, or only a thin layer of frost will form, so there is no need to defrost the outdoor heat exchanger. In other temperature ranges, b≤Touter loop<a, which is already closer to 0 degrees. Therefore, after running for a period of time, the air conditioner needs to be defrosted to ensure the heating effect of the air conditioner.

[0135] Step S80: when defrosting is required, obtaining the operating time corresponding to the outdoor ambient temperature;

[0136] Taking the above four temperature ranges as an example, b≤Touter ring<a is already close to 0 degrees. Therefore, after running for a period of time, the air conditioner needs to be defrosted to ensure the heating effect of the air conditioner. In the two temperature ranges of c<Touter ring≤b and Touter ring≤c, the corresponding temperatures are lower, which is bound to cause frosting. Therefore, when the temperature is less than a, it is determined that the outdoor ambient temperature is the outdoor ambient temperature that requires defrosting.

[0137] It is understandable that, at different outdoor ambient temperatures, the time required to reach a certain frost layer thickness is different. Therefore, when defrosting is required, the operating time corresponding to the outdoor ambient temperature is obtained.

[0138] Step S90: After the corresponding operating time of fault-tolerant operation, the air conditioner is controlled to start defrosting.

[0139] It should be noted that the specific defrosting method is not limited. It can be in the form of refrigerant reverse flow, directly directing the refrigerant flowing out of the compressor to the outdoor heat exchanger for defrosting, or it can be in the form of an electric heating component on the outdoor heat exchanger, and when the defrost is started, the electric heating component is controlled to work.

[0140] In an embodiment of the present application, when the air conditioner is in heating mode, it is determined whether defrosting is required based on the outdoor ambient temperature. If defrosting is required, the operating time corresponding to the outdoor ambient temperature is obtained. After fault-tolerant operation for the corresponding operating time, the air conditioner is controlled to start defrosting. This allows for predicting how long it will take the air conditioner to reach a corresponding frost layer thickness at different temperatures. When the outdoor heat exchanger temperature cannot be detected, the air conditioner can be defrosted based on the outdoor ambient temperature in a predictive manner, thereby improving the user experience.

[0141] The specific setting method of the operating time corresponding to each temperature interval is not restricted. The higher the temperature interval, the shorter the corresponding operating time. The closer to 0℃, the shorter the operating time. The farther away from 0℃, the longer the operating time, and so on. There is no limitation here.

[0142] In some embodiments, when the air conditioner is in heating mode, the air conditioner stores a plurality of temperature intervals, the plurality of temperature intervals including a first temperature interval including 0° C., and a second temperature interval and a third temperature interval disposed adjacent to the first temperature interval, wherein the temperature of the second temperature interval is greater than the temperature of the third temperature interval, and the operating time corresponding to the first temperature interval is shorter than the operating time corresponding to the third and second temperature intervals;

[0143] The step S80 includes:

[0144] Step S81: Determine the temperature range corresponding to the outdoor ambient temperature, and determine the operating time according to the temperature range.

[0145] Assuming b ≤ Toutuohuan < a for the second temperature range, c < Toutuohuan ≤ b for the first temperature range, and Toutuohuan ≤ c for the third temperature range, 5°C ≤ X ≤ 7°C, 8°C ≤ a ≤ 10°C, 1°C ≤ b ≤ 6°C, and -10°C ≤ c < 0°C, meaning 0°C is within the first temperature range, it's understandable that when the temperature is near 0°C, the air humidity is high, and the high temperature also causes frost to form easily on the outdoor heat exchanger, resulting in a correspondingly rapid frost formation rate. However, when the temperature drops below a certain value, the air humidity decreases, so even after a certain period of operation, a thick frost layer may not necessarily form.

[0146] Therefore, in this embodiment, the operating time corresponding to the first temperature range is shorter than the operating time corresponding to the third temperature range, that is, the operating time in the corresponding temperature range including 0°C is the shortest, thereby not only considering environmental factors but also humidity factors under different environments, making defrosting more timely and having a better defrosting effect.

[0147] Furthermore, in some embodiments, b≤Touter ring<a is the second temperature interval, and the corresponding operating time is Pmin, c<Touter ring≤b is the first temperature interval, and the corresponding operating time is P-30min, and Touter ring≤c is the third temperature interval, and the corresponding operating time is Pmin.

[0148] Therefore, in the third temperature range, although the outdoor ambient temperature is lower, the operating time is longer than the operating time in the first temperature range. During defrosting, the timing of defrosting can be comprehensively decided based on the humidity and outdoor ambient temperature.

[0149] In some embodiments, after step S30, the method further includes:

[0150] Step S98: Obtain the total fault-tolerant operation time of the air conditioner;

[0151] Step S99: When the total fault-tolerant operation time of the air conditioner exceeds a second preset threshold, the air conditioner is controlled to shut down.

[0152] It can be understood that fault-tolerant operation is an emergency operation. Once it runs for a long time, it is bound to cause irreversible damage to the air conditioner. Therefore, in order to avoid losses to the air conditioner, when the total time of the air conditioner's fault-tolerant operation exceeds the second preset threshold, the air conditioner is controlled to shut down, thereby protecting the air conditioner.

[0153] This application also provides an execution device, see Figure 4 , the execution device includes:

[0154] A detection module 10, the detection module 10 is used to detect the working state of the first temperature detection device;

[0155] An assignment module 20, configured to assign a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value when detecting that the working state of the first temperature detection device is abnormal; and

[0156] The execution module 30 is used to control the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature.

[0157] The actuator provided in this application, utilizing the air conditioner control method of the aforementioned embodiment, can solve the technical problem of improving the stability of existing air conditioners. Compared to the prior art, the actuator provided in this application has the same beneficial effects as the air conditioner control method provided in the aforementioned embodiment. Other technical features of the actuator are the same as those disclosed in the aforementioned embodiment and are not further described here.

[0158] The present application provides an air conditioner, which includes a control device: the control device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the control method of the air conditioner in the above-mentioned embodiment one.

[0159] Reference below Figure 5 , which shows a structural schematic diagram of a control device suitable for implementing an embodiment of the present application. Figure 5 The control device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0160] like Figure 5As shown, the control device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes based on programs stored in a read-only memory (ROM) 1002 or programs loaded from a storage device 1003 into a random access memory (RAM) 1004. RAM 1004 also stores various programs and data required for the operation of the xxx device. Processing device 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems may be connected to I / O interface 1006: input devices 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage device 1003 including, for example, a magnetic tape, hard disk, etc.; and communication device 1009. The communication device 1009 can allow the control device to communicate with other devices wirelessly or wired to exchange data. Although the figure shows a control device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have instead.

[0161] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in the present application include a program product comprising a computer program carried on a computer-readable medium, the computer program comprising program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0162] The air conditioner provided in this application utilizes the air conditioner control method of the aforementioned embodiment, thereby resolving the technical problem of improving the stability of existing air conditioners. Compared to the prior art, the beneficial effects of the air conditioner provided in this application are the same as those of the air conditioner control method provided in the aforementioned embodiment. Other technical features of this air conditioner are the same as those disclosed in the aforementioned embodiment and are not further described here.

[0163] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0164] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0165] The present application provides a storage medium having computer-readable program instructions (ie, computer program) stored thereon, wherein the computer-readable program instructions are used to execute the air conditioner control method in the above-mentioned embodiment.

[0166] The storage medium provided in this application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, system or device. The program code contained on the storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0167] The above-mentioned storage medium may be included in the air conditioner; or it may exist independently without being assembled into the air conditioner.

[0168] The above-mentioned storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the air conditioner, the air conditioner: detects the working status of the first temperature detection device; when it is detected that the working status of the first temperature detection device is abnormal, assigns the outdoor heat exchanger temperature according to the outdoor ambient temperature value; and controls the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature.

[0169] Computer program code for performing the operations of the present application may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0170] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and program products according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment or a part of code, and the module, program segment or a part of code includes one or more executable instructions for realizing the prescribed logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the prescribed function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0171] The modules described in the embodiments of the present application may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0172] The readable storage medium provided in this application is a storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the aforementioned air conditioner control method, thereby resolving the technical problem of improving the stability of existing air conditioners. Compared to the prior art, the beneficial effects of the storage medium provided in this application are the same as those of the air conditioner control method provided in the aforementioned embodiment, and are not further elaborated here.

[0173] The present application also provides a program product, comprising a computer program, which implements the steps of the above-mentioned air conditioner control method when executed by a processor.

[0174] The program product provided by this application can solve the technical problem of improving the stability of existing air conditioners. Compared with the prior art, the beneficial effects of the program product provided by this application are the same as the beneficial effects of the air conditioner control method provided by the above embodiment, which will not be repeated here.

[0175] The above is a detailed introduction to the air conditioner and its control method, storage medium, program product and execution device provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for controlling an air conditioner, characterized in that: The control method is applied to an air conditioner, the air conditioner including a first temperature detection device for detecting the temperature of an outdoor heat exchanger, and the control method includes: detecting a working state of the first temperature detection device; When it is detected that the working state of the first temperature detection device is abnormal, assigning a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value; The air conditioner is controlled to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature.

2. The air conditioner control method according to claim 1, characterized in that: The steps of assigning a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value include: Correct the outdoor ambient temperature value; The corrected outdoor ambient temperature value is assigned as the outdoor heat exchanger temperature.

3. The air conditioner control method according to claim 2, characterized in that: The steps for correcting the outdoor ambient temperature value include: Select the corresponding correction value according to the operating mode of the air conditioner and the size of the outdoor ambient temperature; Use the correction value to correct the outdoor ambient temperature value.

4. The air conditioner control method according to claim 3, characterized in that: The step of selecting a corresponding correction value according to the operating mode of the air conditioner and the value of the outdoor ambient temperature includes: When the air conditioner is in cooling mode, the correction value is a positive value, and the correction value corresponding to the temperature interval is selected according to the temperature interval to which the outdoor ambient temperature value belongs, and the higher the temperature interval, the larger the corresponding correction value; and / or, When the air conditioner is in heating mode, the correction value is a negative value. The correction value corresponding to the temperature interval is selected according to the temperature interval to which the outdoor ambient temperature value belongs. The higher the temperature interval, the larger the corresponding correction value.

5. The air conditioner control method according to claim 1, characterized in that: After the step of controlling the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature, the method further includes: When the air conditioner is in cooling mode, the refrigerant pressure in the refrigerant pipe of the outdoor heat exchanger and the operating status of the compressor are obtained; When the refrigerant pressure is lower than the pressure threshold and the compressor is shut down for protection, the assigned outdoor heat exchanger temperature is lowered to increase the load of the compressor; and / or, When the refrigerant pressure is greater than or equal to the pressure threshold, the assigned outdoor heat exchanger temperature is increased to reduce the load on the compressor.

6. The air conditioner control method according to claim 1, characterized in that: After the step of controlling the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature, the method further includes: When the air conditioner is in heating mode, determine whether defrosting is required when obtaining the outdoor ambient temperature; When defrosting is required, obtaining the operating time corresponding to the outdoor ambient temperature; After the corresponding operating time of fault-tolerant operation, the air conditioner is controlled to start defrosting.

7. The air conditioner control method according to claim 6, characterized in that: When the air conditioner is in a heating mode, the air conditioner stores a plurality of temperature intervals, the plurality of temperature intervals including a first temperature interval including 0° C., and a second temperature interval and a third temperature interval disposed adjacent to the first temperature interval, wherein the temperature of the second temperature interval is greater than the temperature of the third temperature interval, and an operating time corresponding to the first temperature interval is shorter than an operating time corresponding to the third temperature interval and the second temperature interval; The step of obtaining the operating time corresponding to the outdoor ambient temperature includes: Determine the temperature range corresponding to the outdoor ambient temperature, and determine the operating time according to the temperature range.

8. The air conditioner control method according to claim 1, characterized in that: After the step of controlling the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature, the method further includes: Get the total fault-tolerant operation time of the air conditioner; When the total fault-tolerant operation time of the air conditioner exceeds a second preset threshold, the air conditioner is controlled to shut down.

9. An air conditioner, characterized in that: including control devices; The control device includes: a memory, a processor, and a control program of the liquid storage component stored in the memory and runnable on the processor. When the control device is executed by the processor, the steps of the air conditioner control method as described in any one of claims 1 to 8 are implemented.

10. A storage medium, characterized in that: The storage medium is a storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the air conditioner control method according to any one of claims 1 to 8 are implemented.

11. A program product, characterized in that The program product includes a computer program, and when the computer program is executed by a processor, the steps of the air conditioner control method according to any one of claims 1 to 8 are implemented.

12. An execution device, characterized in that: include: A detection module, configured to detect a working state of the first temperature detection device; An assignment module, configured to assign a value to the outdoor heat exchanger temperature according to the outdoor ambient temperature value when detecting that the working state of the first temperature detection device is abnormal; as well as, An execution module is used to control the air conditioner to perform fault-tolerant operation according to the assigned outdoor heat exchanger temperature.

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