Air conditioner fan control method and device, air conditioner and storage medium

Abstract

The application provides an air conditioner fan control method and device, an air conditioner and a storage medium. The method comprises the following steps: when it is detected that the air conditioner is working, the ambient temperature corresponding to the air conditioner is acquired; if the ambient temperature is less than a preset ambient temperature threshold, the refrigerant temperature of the air conditioner is acquired; and the target fan corresponding to the air conditioner is controlled to adjust according to the temperature change parameter of the refrigerant temperature, the target fan being used for assisting heat release of the heat exchanger of the air conditioner. Through the ambient temperature and the refrigerant temperature of the air conditioner, the target air conditioner assisting the heat release of the heat exchanger of the air conditioner is controlled to adjust, that is, the heat release amount controlled by the temperature change parameter, so that the unreasonable operation of the target fan in a low-temperature environment and when the refrigerant energy of the air conditioner is low is avoided, and the use performance of the compressor is improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically to an air conditioning fan control method, device, air conditioner, and storage medium. Background Technology

[0002] During operation, an air conditioner primarily uses a compressor to power the refrigerant, enabling it to flow through indoor and outdoor heat exchangers for heat exchange, thereby regulating the indoor temperature. However, the diverse environments in which air conditioners are used can also affect their performance. For instance, when an air conditioner operates in low-temperature environments, the refrigerant experiences significant heat loss as it flows through the outdoor heat exchanger due to the low indoor temperature. Conversely, the low ambient temperature reduces the refrigerant's heat exchange capacity as it flows through the indoor heat exchanger, resulting in excessively low refrigerant temperatures and reduced compressor performance. Summary of the Invention

[0003] This application provides an air conditioner fan control method, device, air conditioner, and storage medium, aiming to solve the technical problem that the refrigerant energy is too low when the air conditioner is working in a low-temperature environment, which reduces the performance of the compressor and improves the performance of the compressor in a low-temperature environment.

[0004] In a first aspect, this application provides an air conditioning fan control method, including:

[0005] When the air conditioner is detected to be working, the ambient temperature corresponding to the air conditioner is obtained;

[0006] If the ambient temperature is less than a preset ambient temperature threshold, then the refrigerant temperature of the air conditioner is obtained.

[0007] Based on the temperature change parameters of the refrigerant temperature, the target fan of the air conditioner is adjusted to reduce the heat loss of the refrigerant. The target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

[0008] In one possible implementation of this application, controlling the air conditioner to adjust the target fan according to the temperature change parameter of the refrigerant temperature includes:

[0009] If the refrigerant temperature is lower than the preset temperature threshold, the refrigerant temperature is collected according to the preset temperature collection frequency.

[0010] Based on the correspondence between the refrigerant temperature change parameter and the preset temperature change parameter range, the air conditioner is controlled to adjust the corresponding target fan.

[0011] In one possible implementation of this application, controlling the air conditioner's target fan to adjust based on the correspondence between the refrigerant temperature change parameter and a preset temperature change parameter range includes:

[0012] If the temperature change parameter is within the preset temperature change parameter range, then the target fan speed is controlled to remain constant.

[0013] If the temperature change parameter is greater than the upper limit of the preset temperature change parameter range, then reduce the speed of the target fan.

[0014] If the temperature change parameter is less than the lower limit of the preset temperature change parameter range, then the rotational speed of the target fan is increased.

[0015] In one possible implementation of this application, the step of reducing the rotational speed of the target fan if the temperature change parameter is greater than the upper limit of a preset temperature change parameter range includes:

[0016] If the temperature change parameter is greater than the upper limit of the preset temperature change parameter range, then the difference between the temperature change parameter and the upper limit value is calculated.

[0017] Find the preset mapping table corresponding to the difference and the adjustment parameter, and obtain the target adjustment parameter corresponding to the difference of the changed parameter;

[0018] Adjust the parameters according to the target to control the speed of the target fan to decrease.

[0019] In one possible implementation of this application, obtaining the refrigerant temperature of the air conditioner includes:

[0020] If the working mode of the air conditioner is heating mode, then the coil temperature at the refrigerant outlet of the outdoor heat exchanger of the air conditioner is obtained as the refrigerant temperature.

[0021] If the air conditioner is operating in cooling mode, then the coil temperature at the refrigerant outlet of the indoor heat exchanger is obtained as the refrigerant temperature.

[0022] In one possible implementation of this application, after controlling the air conditioner to adjust the target fan according to the temperature change parameter of the refrigerant temperature, the method further includes:

[0023] If the air conditioner is in cooling mode and the target fan speed is detected to be reduced, then the frequency of the target fan speed reduction within a preset time period is counted.

[0024] If the frequency of the speed reduction is greater than a preset frequency threshold, the opening of the refrigerant valve of the outdoor heat exchanger of the air conditioner is adjusted to the preset upper limit of the valve opening.

[0025] In one possible implementation of this application, after controlling the air conditioner to adjust the target fan according to the temperature change parameter of the refrigerant temperature, the method further includes:

[0026] If the working mode is cooling mode, then the coil temperature at the refrigerant outlet of the outdoor heat exchanger of the air conditioner is the new refrigerant temperature.

[0027] If the temperature of the new refrigerant is continuously lower than the preset temperature threshold, the heating device located on one side of the outdoor heat exchanger will be activated.

[0028] Secondly, this application also provides an air conditioning fan control device, the air conditioning fan control device comprising:

[0029] Temperature acquisition module: used to acquire the ambient temperature corresponding to the air conditioner when the air conditioner is detected to be working;

[0030] Determination and Acquisition Module: Used to acquire the refrigerant temperature of the air conditioner if the ambient temperature is less than a preset ambient temperature threshold;

[0031] Control module: Used to control the target fan of the air conditioner to adjust according to the temperature change parameter of the refrigerant temperature. The target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

[0032] Thirdly, this application also provides an air conditioner, the air conditioner comprising:

[0033] One or more processors;

[0034] Memory; and

[0035] One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement any one of the air conditioning fan control methods.

[0036] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to perform the steps in any of the air conditioning fan control methods described above.

[0037] This application provides an air conditioner fan control method, device, air conditioner, and storage medium. When the air conditioner is detected to be working, the ambient temperature corresponding to the air conditioner is obtained; if the ambient temperature is less than a preset ambient temperature threshold, the refrigerant temperature of the air conditioner is obtained; and the target fan corresponding to the air conditioner is adjusted according to the temperature change parameter of the refrigerant temperature. The target fan is used to assist the heat exchanger of the air conditioner in releasing heat. This solution acquires the ambient temperature when the air conditioner is detected to be working, and determines the relationship between the ambient temperature and a preset ambient temperature threshold. If the ambient temperature is lower than the preset threshold, it indicates that the refrigerant is working in a low-temperature environment. The solution further acquires the refrigerant temperature and determines the refrigerant temperature change parameters, i.e., assessing the change in the heat contained in the refrigerant. Based on these refrigerant temperature change parameters, the target air conditioner, which assists the air conditioner in releasing heat through its heat exchanger, is adjusted. This allows the target fan to adaptively adjust to changes in refrigerant temperature. In other words, by controlling the heat release through temperature change parameters, the solution prevents the target air conditioner from operating irrationally in low-temperature environments with low refrigerant energy, which could lead to increased heat release from the heat exchanger and thus prevent a decrease in the heat content of the refrigerant, thereby improving the compressor's performance. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of a scenario for the air conditioning fan control method provided in an embodiment of this application;

[0040] Figure 2 This is a schematic flowchart of an embodiment of the air conditioning fan control method provided in this application.

[0041] Figure 3 A schematic flowchart of an implementation scheme for the adjustment and control of the target fan in the air conditioning fan control method provided in this application;

[0042] Figure 4 A schematic flowchart of one embodiment of the air conditioning fan control method provided in this application for obtaining refrigerant temperature;

[0043] Figure 5 A schematic flowchart of another embodiment of the air conditioning fan control method provided in this application;

[0044] Figure 6A schematic flowchart of another embodiment of the air conditioning fan control method provided in this application;

[0045] Figure 7 This is a schematic diagram of an embodiment of the air conditioning fan control device provided in this application.

[0046] Figure 8 This is a schematic diagram of an embodiment of the air conditioner provided in this application. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0050] In a typical refrigerant-based air conditioning system, there are generally four main components: the compressor, condenser, throttling element, and evaporator. The compressor is often referred to as the "heart" of the system. It compresses the refrigerant, changing its state from a low-temperature, gaseous state to a high-temperature, high-pressure gaseous state, thus increasing its temperature and pressure and providing the power for refrigerant circulation. The compressor is also the moving part of the system, and its reliability and lifespan directly determine the reliability and lifespan of the air conditioning unit. During low-load cooling conditions, the low outdoor temperature leads to excellent heat exchange in the condenser, causing a large amount of high-temperature, high-pressure gaseous refrigerant to condense into an even lower-temperature liquid refrigerant. This results in lower exhaust temperature and lower oil temperature (no superheat). Prolonged exposure to this condition leads to poor lubrication, accelerated compressor wear, reduced compressor reliability, and ultimately, decreased compressor performance.

[0051] Therefore, this application provides an air conditioner fan control method, device, air conditioner, and computer-readable storage medium (the computer-readable storage medium can be referred to as the storage medium) to further obtain the refrigerant temperature of the air conditioner and determine the temperature change parameters of the refrigerant temperature. The heat release controlled by the temperature change parameters avoids unreasonable operation of the target air conditioner fan when the target air conditioner is in a low temperature environment and the refrigerant energy of the air conditioner is low, which would lead to an increase in the heat release of the heat exchanger, thereby avoiding a decrease in the heat content of the refrigerant and improving the performance of the compressor. The following are detailed descriptions of these aspects.

[0052] The air conditioning fan control method in this embodiment of the invention is applied to an air conditioning fan control device, which is installed in an air conditioner. The air conditioner is provided with one or more processors, a memory, and one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the air conditioning fan control method.

[0053] like Figure 1 As shown, Figure 1 This is a schematic diagram of a scenario for an air conditioner fan control method according to an embodiment of this application. The air conditioner fan control scenario in this embodiment includes an air conditioner 100 (which integrates an air conditioner fan control device). The air conditioner 100 runs a computer-readable storage medium corresponding to the air conditioner fan control to execute the steps of the air conditioner fan control.

[0054] Understandable, Figure 1The air conditioners in the scenario of the air conditioner fan control method shown, or the devices contained in the air conditioners, do not constitute a limitation on the embodiments of the present invention. That is, the number or type of air conditioners in the scenario of the air conditioner fan control method, or the number or type of devices contained in each air conditioner, do not affect the overall implementation of the technical solution in the embodiments of the present invention, and can all be considered as equivalent substitutions or derivatives of the technical solutions claimed in the embodiments of the present invention.

[0055] In this embodiment of the invention, the air conditioner 100 is mainly used for: when the air conditioner is detected to be working, obtaining the ambient temperature corresponding to the air conditioner; if the ambient temperature is less than a preset ambient temperature threshold, obtaining the refrigerant temperature of the air conditioner; and controlling the target fan of the air conditioner to be adjusted according to the temperature change parameter of the refrigerant temperature, wherein the target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

[0056] Those skilled in the art will understand that Figure 1 The application environment shown is merely one application scenario of the solution in this application and does not constitute a limitation on the application scenario of the solution in this application. Other application environments may include those that are more specific to this application. Figure 1 The number of more or fewer air conditioners shown, or the air conditioner network connection relationship, for example Figure 1 Only one air conditioner is shown in the diagram. It is understood that the scenario of this air conditioner fan control method may also include one or more other air conditioners, which are not specifically limited here. The air conditioner 100 may also include a memory for storing data, such as air conditioner working parameters.

[0057] Furthermore, in the scenario of the air conditioner fan control method of this application, the air conditioner 100 can be equipped with a display device, or the air conditioner 100 can be connected to an external display device 200 without a built-in display device. The display device 200 is used to output the results of the air conditioner fan control method execution. The air conditioner 100 can access the background database 300 (the background database can be located in the local storage of the air conditioner, or it can be located in the cloud). The background database 300 stores information related to the air conditioner fan control.

[0058] It should be noted that, Figure 1 The schematic diagram of the air conditioner fan control method shown is merely an example. The scenarios of the air conditioner fan control method described in the embodiments of the present invention are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided in the embodiments of the present invention.

[0059] Based on the scenarios described above for air conditioning fan control methods, an embodiment of the air conditioning fan control method is proposed.

[0060] like Figure 2The diagram shown is a flowchart of an embodiment of the air conditioning fan control method in this application. The air conditioning fan control method includes steps S201-S203:

[0061] S201. When the air conditioner is detected to be working, the ambient temperature corresponding to the air conditioner is obtained.

[0062] The ambient temperature can be either indoor or outdoor. In this embodiment, the ambient temperature is the outdoor ambient temperature.

[0063] It is understood that the ambient temperature can be acquired by a temperature acquisition device that communicates with the air conditioner.

[0064] In this embodiment of the application, the air conditioner fan control method is applied to an air conditioner. When the air conditioner receives a power command, that is, it detects that the air conditioner is working, parses the power command, obtains the working mode and set temperature of the air conditioner, controls the air conditioner to work according to the working mode and set temperature, and obtains the ambient temperature corresponding to the air conditioner.

[0065] It is understandable that, since air conditioners are more prone to problems such as low refrigerant heat and low superheat when operating in cooling mode in low-temperature environments, in some other embodiments of this application, the air conditioner fan control method is applied to an air conditioner. After receiving the air conditioner's work command and parsing the work command to obtain the air conditioner's work mode and set temperature, the air conditioner controls the air conditioner to perform work according to the work mode and set temperature. The step of obtaining the ambient temperature corresponding to the air conditioner is only executed if the work mode is cooling mode, and the step of obtaining the ambient temperature corresponding to the air conditioner is not executed if the work mode is heating mode. The specific design can be made according to actual needs.

[0066] S202. If the ambient temperature is less than a preset ambient temperature threshold, then obtain the refrigerant temperature of the air conditioner.

[0067] The preset ambient temperature threshold, which is used to determine whether the ambient temperature is low, can be preset, for example, it can be -15 degrees Celsius, -20 degrees Celsius, etc.

[0068] The refrigerant temperature refers to the refrigerant temperature at a specific location in the air conditioner's refrigerant circuit, such as the refrigerant temperature at the compressor's return port, or the refrigerant temperature at the refrigerant outlet of a heat exchanger used for heat dissipation (e.g., the refrigerant temperature at the refrigerant outlet of the outdoor heat exchanger corresponding to the air conditioner's cooling mode). It can also be the refrigerant temperature at the refrigerant outlet of a heat exchanger used for cooling. It is understood that the refrigerant temperature can be acquired by a temperature detection device installed on the refrigerant coil.

[0069] Specifically, after obtaining the ambient temperature, the air conditioner compares the ambient temperature with a preset ambient temperature threshold. If the ambient temperature is lower than the preset ambient temperature threshold, it indicates that the outdoor ambient temperature is low, and then the refrigerant temperature of the air conditioner is obtained.

[0070] It is understood that in some other embodiments of this application, after the air conditioner obtains the ambient temperature, it compares the ambient temperature with a preset ambient temperature threshold. If the ambient temperature is not less than the preset ambient temperature threshold, it indicates that the outdoor ambient temperature is not low, and the step of obtaining the refrigerant temperature of the air conditioner is not performed.

[0071] S203. Based on the temperature change parameter of the refrigerant temperature, control the air conditioner to adjust the corresponding target fan to reduce the heat loss of the refrigerant, wherein the target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

[0072] The temperature change parameter can be the rate of temperature change of the refrigerant temperature within a preset time period, or it can be the temperature change difference of the refrigerant temperature within a preset time period. The temperature change parameter can include temperature decay rate, temperature rise rate, etc.

[0073] It is understood that the target fan is used to assist the heat exchanger of the air conditioner in releasing heat. That is, when the air conditioner is in heating mode, the outdoor heat exchanger of the air conditioner releases heat. In other words, the target fan is an outdoor fan used to control air circulation and increase the heat release capacity of the outdoor heat exchanger.

[0074] Specifically, after obtaining the refrigerant temperature, the air conditioner compares each refrigerant temperature with a preset temperature threshold. When a refrigerant temperature higher than the preset temperature threshold is detected, the time from the detection of the refrigerant temperature higher than the preset temperature threshold is used as the starting point of a preset time period. A temperature change parameter for the refrigerant temperature within the preset time period is calculated. Based on the temperature change parameter, the air conditioner controls the corresponding target fan to adjust. This application does not specifically limit the specific implementation method; an example is provided:

[0075] In some embodiments of this application, after obtaining the temperature change parameter of the refrigerant temperature within a preset time period, the air conditioner compares the temperature change parameter with a preset temperature change parameter threshold. If the temperature change parameter is greater than the preset temperature change parameter, the target fan is controlled to reduce its speed; otherwise, the target fan is adjusted.

[0076] In some embodiments of this application, after obtaining the temperature change parameters of the refrigerant temperature within a preset time period, the air conditioner compares the refrigerant temperature change range and controls the target fan to adjust according to the correspondence obtained from the comparison.

[0077] In some embodiments of this application, after obtaining the refrigerant temperature, the air conditioner compares the refrigerant temperature with a preset temperature threshold. If the refrigerant temperature is greater than the preset temperature threshold, the air conditioner collects the refrigerant temperature according to a preset temperature collection frequency; calculates the temperature difference between each collected refrigerant temperature and a preset target temperature; calculates the rate of temperature difference change based on each temperature difference value; and adjusts the working mode corresponding to the target fan according to the rate of temperature difference change.

[0078] Furthermore, based on the above implementation plan, see [link to relevant documentation]. Figure 3 , Figure 3 A schematic flowchart of an implementation scheme for adjusting and controlling the target fan in the air conditioning fan control method provided in this application includes steps S301-S302:

[0079] S301. If the refrigerant temperature is less than the preset temperature threshold, the refrigerant temperature is collected according to the preset temperature collection frequency.

[0080] The sampling frequency is used to limit the sampling interval of the refrigerant temperature, and can be 15 minutes / time, 3 minutes / time, etc., but this application does not make a specific limitation.

[0081] Specifically, when the air conditioner detects that it is working, it obtains the ambient temperature corresponding to the air conditioner. If the ambient temperature is lower than a preset ambient temperature threshold, it periodically obtains the refrigerant temperature. When the refrigerant temperature is detected to be lower than the preset temperature threshold, it collects the refrigerant temperature according to the preset temperature collection frequency.

[0082] S302. Based on the correspondence between the temperature change parameters of the refrigerant temperature and the preset temperature change parameter range, control the target fan of the air conditioner to adjust.

[0083] The correspondence between the refrigerant temperature change parameter and the preset temperature change parameter range includes the temperature change parameter being within the temperature change parameter range, the temperature change parameter being less than the lower limit of the temperature change parameter range, and the temperature change parameter being greater than the upper limit of the temperature change parameter range.

[0084] Specifically, based on the correspondence between the refrigerant temperature change parameter and the preset temperature change parameter range, the air conditioner's corresponding target fan is controlled to adjust, including:

[0085] (1) If the temperature change parameter corresponds to the preset temperature change parameter range, and the temperature change parameter is within the temperature change parameter range, then the target fan speed is controlled to remain constant.

[0086] It is understood that if the temperature change parameter falls within the temperature change parameter range, the temperature change parameter will not change significantly. Furthermore, the temperature change parameter is the temperature change parameter within a preset time period after the refrigerant temperature is detected to be lower than the preset temperature threshold. In other words, the temperature change parameter corresponds to the temperature change parameter of the refrigerant temperature near the preset temperature threshold. Therefore, the heat in the refrigerant will remain in a stable and not too low state, and the operation of the air conditioner will not affect the performance of the compressor. Thus, the target fan speed is not adjusted at this time.

[0087] (2) If the correspondence between the temperature change parameter and the preset temperature change parameter range is that the temperature change parameter is greater than the upper limit of the preset temperature change parameter range, then reduce the speed of the target fan.

[0088] It is understandable that if the temperature change parameter is greater than the upper limit of the temperature change parameter range, it indicates that the refrigerant temperature has decreased significantly and the refrigerant heat loss is significant. Therefore, the speed of the target fan should be reduced, that is, the airflow on the surface of the heat exchanger should be reduced, thereby reducing the heat exchange efficiency of the heat exchanger and thus reducing the refrigerant heat loss, so as to increase the refrigerant heat and improve the compressor performance.

[0089] (3) If the temperature change parameter corresponds to the preset temperature change parameter range such that the temperature change parameter is less than the lower limit of the preset temperature change parameter range, then reduce the speed of the target fan.

[0090] It is understood that if the temperature change parameter is less than the lower limit of the temperature change parameter range, for example, if the temperature change parameter is the temperature difference of the refrigerant temperature over a preset time period, it is understood that if the temperature change parameter is less than the lower limit of the temperature change parameter range, it indicates that the refrigerant temperature is low but the heat loss in the refrigerant is not significant. To avoid affecting the working performance of the air conditioner, the working effect of the air conditioner and the working performance of the compressor can be improved by increasing the speed of the target fan, that is, increasing the air flow on the surface of the heat exchanger that releases heat.

[0091] It is understandable that the speed adjustment of the target fan in the air conditioner control can be a preset value, or it can be a different speed adjustment value corresponding to different rates of temperature change. For example:

[0092] In one embodiment of this application, if the correspondence between the temperature change parameter and a preset temperature change parameter range is such that the temperature change parameter is greater than the upper limit of the temperature change parameter range, then the rotational speed of the target fan is reduced, specifically including:

[0093] (1) If the correspondence between the temperature change parameter and the preset temperature change parameter range is that the temperature change parameter is greater than the upper limit of the temperature change parameter range, then calculate the difference between the temperature change parameter and the upper limit value.

[0094] (2) Find the preset mapping table corresponding to the difference and the adjustment parameter, and obtain the target adjustment parameter corresponding to the difference of the changed parameter;

[0095] (3) Adjust the parameters according to the target to control the speed of the target fan to decrease.

[0096] It is understandable that if the difference between the temperature change parameter and the upper limit value is large, the target adjustment parameter corresponding to the difference in the change parameter will also be large, and vice versa, to ensure the rationality of the target fan control.

[0097] Furthermore, based on the above implementation plan, see [link to relevant documentation]. Figure 4 , Figure 4 A flowchart illustrating one embodiment of the air conditioning fan control method for obtaining refrigerant temperature provided in this application includes steps S401-S402:

[0098] S401. If the working mode of the air conditioner is heating mode, then the coil temperature at the refrigerant outlet of the outdoor heat exchanger of the air conditioner is obtained as the refrigerant temperature.

[0099] It is understood that the coil temperature may include one or more.

[0100] For example, the outdoor heat exchanger is equipped with different temperature sensors at different positions of the coil at the refrigerant outlet end. The refrigerant temperature is obtained by collecting the coil temperature at different coil positions through each temperature sensor and calculating the average coil temperature.

[0101] For example, the outdoor heat exchanger is equipped with a temperature sensor on the coil at the refrigerant outlet end, and the coil temperature collected by the temperature sensor is used as the refrigerant temperature.

[0102] S402. If the working mode of the air conditioner is cooling mode, then the coil temperature at the refrigerant outlet of the indoor heat exchanger of the air conditioner is obtained as the refrigerant temperature.

[0103] Similarly, in cooling mode, the coil temperature can include one or more.

[0104] Furthermore, based on the above implementation plan, see [link to relevant documentation]. Figure 5 , Figure 5 A flowchart illustrating another embodiment of the air conditioning fan control method provided in this application includes steps S501-S505:

[0105] S501. When the air conditioner is detected to be working, the ambient temperature corresponding to the air conditioner is obtained.

[0106] S502. If the ambient temperature is less than a preset ambient temperature threshold, then obtain the refrigerant temperature of the air conditioner.

[0107] S503. Based on the temperature change parameter of the refrigerant temperature, control the target fan of the air conditioner to adjust in order to reduce the heat loss of the refrigerant, wherein the target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

[0108] Specifically, the specific implementation methods of steps S501-S503 are shown in any of the above implementation schemes, and this application does not impose specific limitations.

[0109] S504. If the working mode of the air conditioner is cooling mode, and the speed of the target fan is detected to decrease, then the frequency of the target fan speed decreasing within a preset time period is counted.

[0110] The target fan is an outdoor fan.

[0111] The frequency of speed reduction refers to the number of times the target fan speed decreases within a preset time period.

[0112] Specifically, after step S503, the air conditioner continues to detect the ambient temperature and refrigerant temperature, repeating the above steps S502-S503. The target fan speed is adjusted, and after each speed reduction adjustment, the number of speed adjustments of the target fan is counted to obtain the frequency of speed reduction of the target fan within a preset time.

[0113] S505. If the frequency of the speed reduction is greater than the preset frequency threshold, then adjust the opening of the refrigerant valve of the outdoor heat exchanger of the air conditioner to the preset upper limit of the valve opening.

[0114] Among them, the refrigerant valve, that is, the valve that controls the refrigerant flow in the outdoor heat exchanger, such as a two-way valve, a switch valve, etc., and the upper limit of the valve opening, that is, the maximum opening of the refrigerant valve.

[0115] Furthermore, the air conditioner compares the frequency of speed reduction with a preset frequency threshold. If the frequency of speed reduction is greater than the preset frequency threshold, it indicates that the problem of low refrigerant heat cannot be overcome even after adjusting the speed of the target fan. In this case, the opening of the refrigerant valve of the outdoor heat exchanger is adjusted to the preset upper limit of the valve opening, that is, the refrigerant flow rate of the heat exchanger is increased, the refrigerant circulation rate is increased, the refrigerant heat loss is further reduced, and the performance of the air conditioner compressor is improved.

[0116] Furthermore, based on the above implementation plan, see [link to relevant documentation]. Figure 6 , Figure 6 A flowchart illustrating another embodiment of the air conditioning fan control method provided in this application includes steps S601-S605:

[0117] S601. When the air conditioner is detected to be working, the ambient temperature corresponding to the air conditioner is obtained.

[0118] S602. If the ambient temperature is less than a preset ambient temperature threshold, then obtain the refrigerant temperature of the air conditioner.

[0119] S603. Based on the temperature change parameter of the refrigerant temperature, control the target fan of the air conditioner to adjust in order to reduce the heat loss of the refrigerant, wherein the target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

[0120] Specifically, the specific implementation methods of steps S601-S603 are shown in any of the above implementation schemes, and this application does not impose specific limitations.

[0121] S604. If the working mode is cooling mode, then the coil temperature at the refrigerant outlet of the outdoor heat exchanger of the air conditioner is obtained as the new refrigerant temperature.

[0122] Specifically, after adjusting the target fan of the air conditioner according to the temperature change parameter of the refrigerant temperature, the air conditioner continues to detect and obtain the coil temperature at the refrigerant outlet of the outdoor heat exchanger as the new refrigerant temperature, and compares the new refrigerant temperature with a preset temperature threshold to determine the change in heat in the refrigerant temperature.

[0123] S605. If the temperature of the new refrigerant is continuously lower than the preset temperature threshold, the heating device located on one side of the outdoor heat exchanger is activated.

[0124] Furthermore, if the temperature of the new refrigerant is continuously lower than the preset temperature threshold within a preset time period, it indicates that the problem of low refrigerant heat cannot be overcome even after adjusting the speed of the target fan. In this case, the heating device located on one side of the outdoor heat exchanger is activated to heat the air around the outdoor heat exchanger through the electric heating device, thereby helping to reduce the heat released by the outdoor heat exchanger, increase the heat of the refrigerant, and improve the performance of the compressor.

[0125] This application provides an air conditioner fan control method, which obtains the ambient temperature corresponding to the air conditioner when the air conditioner is detected to be working; if the ambient temperature is less than a preset ambient temperature threshold, the refrigerant temperature of the air conditioner is obtained; and the target fan corresponding to the air conditioner is adjusted according to the temperature change parameter of the refrigerant temperature, wherein the target fan is used to assist the heat exchanger of the air conditioner in releasing heat. This solution acquires the ambient temperature when the air conditioner is detected to be working, and determines the relationship between the ambient temperature and a preset ambient temperature threshold. If the ambient temperature is lower than the preset threshold, it indicates that the refrigerant is working in a low-temperature environment. The solution further acquires the refrigerant temperature and determines the refrigerant temperature change parameters, i.e., assessing the change in the heat contained in the refrigerant. Based on these refrigerant temperature change parameters, the target air conditioner, which assists the air conditioner in releasing heat through its heat exchanger, is adjusted. This allows the target fan to adaptively adjust to changes in refrigerant temperature. In other words, by controlling the heat release through temperature change parameters, the solution prevents the target air conditioner from operating irrationally in low-temperature environments with low refrigerant energy, which could lead to increased heat release from the heat exchanger and thus prevent a decrease in the heat content of the refrigerant, thereby improving the compressor's performance.

[0126] To better implement the air conditioning fan control method in the embodiments of this application, an air conditioning fan control device is also provided in the embodiments of this application, such as... Figure 7 As shown, the air conditioner fan control device includes modules 701-703:

[0127] Temperature acquisition module 701: used to acquire the ambient temperature corresponding to the air conditioner when the air conditioner is detected to be working;

[0128] Determination and acquisition module 702: used to acquire the refrigerant temperature of the air conditioner if the ambient temperature is less than a preset ambient temperature threshold;

[0129] Control module 703: Used to control the target fan of the air conditioner to adjust according to the temperature change parameter of the refrigerant temperature in order to reduce the heat loss of the refrigerant, wherein the target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

[0130] In one embodiment of this application, the control module 703 is used to control the target fan of the air conditioner to adjust according to the temperature change parameter of the refrigerant temperature, specifically including:

[0131] If the refrigerant temperature is lower than the preset temperature threshold, the refrigerant temperature is collected according to the preset temperature collection frequency.

[0132] Based on the correspondence between the refrigerant temperature change parameter and the preset temperature change parameter range, the air conditioner is controlled to adjust the corresponding target fan.

[0133] In one embodiment of this application, the control module 703 is used to control the target fan of the air conditioner to adjust according to the correspondence between the temperature change parameter of the refrigerant temperature and the preset temperature change parameter range, specifically including:

[0134] If the temperature change parameter is within the preset temperature change parameter range, then the target fan speed is controlled to remain constant.

[0135] If the temperature change parameter is greater than the upper limit of the preset temperature change parameter range, then reduce the speed of the target fan.

[0136] If the temperature change parameter is less than the lower limit of the preset temperature change parameter range, then the rotational speed of the target fan is increased.

[0137] In one embodiment of this application, the control module 703 is configured to reduce the speed of the target fan if the temperature change parameter is greater than the upper limit of a preset temperature change parameter range, specifically including:

[0138] If the temperature change parameter is greater than the upper limit of the preset temperature change parameter range, then the difference between the temperature change parameter and the upper limit value is calculated.

[0139] Find the preset mapping table corresponding to the difference and the adjustment parameter, and obtain the target adjustment parameter corresponding to the difference of the changed parameter;

[0140] Adjust the parameters according to the target to control the speed of the target fan to decrease.

[0141] In one embodiment of this application, the determination and acquisition module 702 is used to acquire the refrigerant temperature of the air conditioner, specifically including:

[0142] If the working mode of the air conditioner is heating mode, then the coil temperature at the refrigerant outlet of the outdoor heat exchanger of the air conditioner is obtained as the refrigerant temperature.

[0143] If the air conditioner is operating in cooling mode, then the coil temperature at the refrigerant outlet of the indoor heat exchanger is obtained as the refrigerant temperature.

[0144] In one embodiment of this application, the control module 703, after controlling the target fan of the air conditioner to adjust according to the temperature change parameter of the refrigerant temperature, further includes:

[0145] If the air conditioner is in cooling mode and the target fan speed is detected to be reduced, then the frequency of the target fan speed reduction within a preset time period is counted.

[0146] If the frequency of the speed reduction is greater than a preset frequency threshold, the opening of the refrigerant valve of the outdoor heat exchanger of the air conditioner is adjusted to the preset upper limit of the valve opening.

[0147] In one embodiment of this application, the control module 703, after controlling the target fan of the air conditioner to adjust according to the temperature change parameter of the refrigerant temperature, further includes:

[0148] If the working mode is cooling mode, then the coil temperature at the refrigerant outlet of the outdoor heat exchanger of the air conditioner is the new refrigerant temperature.

[0149] If the temperature of the new refrigerant is continuously lower than the preset temperature threshold, the heating device located on one side of the outdoor heat exchanger will be activated.

[0150] This application provides an air conditioner fan control device, which includes a temperature acquisition module for acquiring the ambient temperature corresponding to the air conditioner when the air conditioner is detected to be working; a judgment acquisition module for acquiring the refrigerant temperature of the air conditioner if the ambient temperature is less than a preset ambient temperature threshold; and a control module for adjusting the target fan of the air conditioner according to the temperature change parameter of the refrigerant temperature to reduce the heat loss of the refrigerant, wherein the target fan is used to assist the heat exchanger of the air conditioner in releasing heat. This solution acquires the ambient temperature when the air conditioner is detected to be working, and determines the relationship between the ambient temperature and a preset ambient temperature threshold. If the ambient temperature is lower than the preset threshold, it indicates that the refrigerant is working in a low-temperature environment. The solution further acquires the refrigerant temperature and determines the refrigerant temperature change parameters, i.e., assessing the change in the heat contained in the refrigerant. Based on these refrigerant temperature change parameters, the target air conditioner, which assists the air conditioner in releasing heat through its heat exchanger, is adjusted. This allows the target fan to adaptively adjust to changes in refrigerant temperature. In other words, by controlling the heat release through temperature change parameters, the solution prevents the target air conditioner from operating irrationally in low-temperature environments with low refrigerant energy, which could lead to increased heat release from the heat exchanger and thus prevent a decrease in the heat content of the refrigerant, thereby improving the compressor's performance.

[0151] This invention also provides an air conditioner, such as... Figure 8 As shown, Figure 8 This is a schematic diagram of an embodiment of the air conditioner provided in this application.

[0152] Air conditioning includes:

[0153] One or more processors;

[0154] Memory; and

[0155] One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor in the steps of the air conditioning control method described in any of the embodiments of the above-described air conditioning control method.

[0156] Specifically, an air conditioner may include components such as a processor 1001 with one or more processing cores, a memory 1002 with one or more computer-readable storage media, a power supply 1003, and an input unit 1004. Those skilled in the art will understand that... Figure 8 The air conditioning structure shown does not constitute a limitation on the air conditioning system and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0157] in:

[0158] The processor 1001 is the control center of the air conditioner. It connects to various parts of the air conditioner via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 1002, and by calling data stored in the memory 1002, it performs various functions and processes data, thereby providing overall monitoring of the air conditioner. It is understood that the processor 1001 communicates with the controller via signal transmission. Optionally, the processor 1001 may include one or more processing cores; preferably, the processor 1001 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 1001.

[0159] The memory 1002 can be used to store software programs and modules. The processor 1001 executes various functional applications and data processing by running the software programs and modules stored in the memory 1002. The memory 1002 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created based on the use of the air conditioner, etc. In addition, the memory 1002 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 1002 may also include a memory controller to provide the processor 1001 with access to the memory 1002.

[0160] In some embodiments of this application, the air conditioning control device can be implemented as a computer program, and the computer program can be implemented in, for example... Figure 8The air conditioner shown is running. The air conditioner's memory can store the various program modules that make up the air conditioner control device, for example, Figure 7 The temperature acquisition module 701, judgment acquisition module 702, and control module 703 are shown. The computer program composed of these various program modules causes the processor to execute the steps in the air conditioning control methods of the various embodiments of this application described in this specification.

[0161] For example, Figure 8 The air conditioner shown can be used as follows Figure 7 The temperature acquisition module 701 in the air conditioning control device shown executes step S201. The air conditioner can execute step S202 through the judgment acquisition module 702. The air conditioner can execute step S203 through the control module 703. The air conditioner includes a processor, memory, and network interface connected via a system bus. The processor of the air conditioner provides computing and control capabilities. The memory of the air conditioner includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface of the air conditioner is used to communicate with an external air conditioner via a network connection. When the computer program is executed by the processor, it implements an air conditioning control method.

[0162] The air conditioner also includes a power supply 1003 that supplies power to various components. Preferably, the power supply 1003 can be logically connected to the processor 1001 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 1003 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0163] The air conditioner may also include an input unit 1004, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0164] Although not shown, the air conditioner may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 1001 in the air conditioner loads the executable files corresponding to the processes of one or more application programs into the memory 1002 according to the following instructions, and the processor 1001 runs the application programs stored in the memory 1002 to realize various functions, as follows:

[0165] When the air conditioner is detected to be working, the ambient temperature corresponding to the air conditioner is obtained;

[0166] If the ambient temperature is less than a preset ambient temperature threshold, then the refrigerant temperature of the air conditioner is obtained.

[0167] Based on the temperature change parameters of the refrigerant temperature, the target fan of the air conditioner is adjusted to reduce the heat loss of the refrigerant. The target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

[0168] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0169] Therefore, embodiments of the present invention provide a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, etc. A computer program is stored thereon, which is loaded by a processor to execute the steps in any of the air conditioning control methods provided in the embodiments of the present invention. For example, the computer program loaded by the processor can execute the following steps:

[0170] When the air conditioner is detected to be working, the ambient temperature corresponding to the air conditioner is obtained;

[0171] If the ambient temperature is less than a preset ambient temperature threshold, then the refrigerant temperature of the air conditioner is obtained.

[0172] Based on the temperature change parameters of the refrigerant temperature, the target fan of the air conditioner is adjusted to reduce the heat loss of the refrigerant. The target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

[0173] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0174] In practice, each of the above units or structures can be implemented as an independent entity or can be arbitrarily combined to be implemented as the same or several entities. For the specific implementation of each of the above units or structures, please refer to the previous method embodiments, which will not be repeated here.

[0175] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0176] The above provides a detailed description of an air conditioning fan control method, device, air conditioner, and storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for controlling an air conditioning fan, characterized in that, include: When the air conditioner is detected to be working, the ambient temperature corresponding to the air conditioner is obtained; If the ambient temperature is less than a preset ambient temperature threshold, then the refrigerant temperature of the air conditioner is obtained. Based on the temperature change parameters of the refrigerant temperature, the air conditioner is controlled to adjust the corresponding target fan to reduce the heat loss of the refrigerant. The target fan is used to assist the heat exchanger of the air conditioner in releasing heat. The step of obtaining the refrigerant temperature of the air conditioner includes: If the working mode of the air conditioner is heating mode, then the coil temperature at the refrigerant outlet of the outdoor heat exchanger of the air conditioner is obtained as the refrigerant temperature. If the air conditioner is operating in cooling mode, then the coil temperature at the refrigerant outlet of the indoor heat exchanger is obtained as the refrigerant temperature.

2. The air conditioning fan control method according to claim 1, characterized in that, The step of controlling the air conditioner to adjust the corresponding target fan based on the temperature change parameter of the refrigerant temperature includes: If the refrigerant temperature is lower than the preset temperature threshold, the refrigerant temperature is collected according to the preset temperature collection frequency. Based on the correspondence between the refrigerant temperature change parameter and the preset temperature change parameter range, the air conditioner is controlled to adjust the corresponding target fan.

3. The air conditioning fan control method according to claim 2, characterized in that, The step of controlling the air conditioner to adjust the target fan according to the correspondence between the refrigerant temperature change parameter and the preset temperature change parameter range includes: If the temperature change parameter is within the preset temperature change parameter range, then the target fan speed is controlled to remain constant. If the temperature change parameter is greater than the upper limit of the preset temperature change parameter range, then reduce the speed of the target fan. If the temperature change parameter is less than the lower limit of the preset temperature change parameter range, then the rotational speed of the target fan is increased.

4. The air conditioning fan control method according to claim 3, characterized in that, If the temperature change parameter is greater than the upper limit of a preset temperature change parameter range, then reducing the speed of the target fan includes: If the temperature change parameter is greater than the upper limit of the preset temperature change parameter range, then the difference between the temperature change parameter and the upper limit value is calculated. Find the preset mapping table corresponding to the difference and the adjustment parameter, and obtain the target adjustment parameter corresponding to the difference of the changed parameter; Adjust the parameters according to the target to control the speed of the target fan to decrease.

5. The air conditioning fan control method according to claim 1, characterized in that, After controlling the air conditioner to adjust the target fan according to the temperature change parameter of the refrigerant temperature, the method further includes: If the air conditioner is in cooling mode and the target fan speed is detected to be reduced, then the frequency of the target fan speed reduction within a preset time period is counted. If the frequency of the speed reduction is greater than a preset frequency threshold, the opening of the refrigerant valve of the outdoor heat exchanger of the air conditioner is adjusted to the preset upper limit of the valve opening.

6. The air conditioning fan control method according to any one of claims 1-5, characterized in that, After controlling the air conditioner to adjust the target fan according to the temperature change parameter of the refrigerant temperature, the method further includes: If the working mode is cooling mode, then the coil temperature at the refrigerant outlet of the outdoor heat exchanger of the air conditioner is the new refrigerant temperature. If the temperature of the new refrigerant is continuously lower than the preset temperature threshold, the heating device located on one side of the outdoor heat exchanger will be activated.

7. An air conditioning fan control device, characterized in that, The air conditioning fan control device includes: Temperature acquisition module: used to acquire the ambient temperature corresponding to the air conditioner when the air conditioner is detected to be working; The determination and acquisition module is used to acquire the refrigerant temperature of the air conditioner if the ambient temperature is less than a preset ambient temperature threshold. The acquisition of the refrigerant temperature of the air conditioner includes: if the operating mode of the air conditioner is heating mode, acquiring the coil temperature at the refrigerant outlet of the outdoor heat exchanger of the air conditioner as the refrigerant temperature; if the operating mode of the air conditioner is cooling mode, acquiring the coil temperature at the refrigerant outlet of the indoor heat exchanger of the air conditioner as the refrigerant temperature. Control module: Used to control the target fan of the air conditioner to adjust according to the temperature change parameter of the refrigerant temperature, so as to reduce the heat loss of the refrigerant, wherein the target fan is used to assist the heat exchanger of the air conditioner in releasing heat.

8. An air conditioner, characterized in that, The air conditioner includes: One or more processors; Memory; and One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the air conditioning fan control method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to execute the steps in the air conditioning fan control method according to any one of claims 1 to 6.

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