Air conditioner, control method and control device thereof and computer readable storage medium

Abstract

The invention discloses an air conditioner, a control method and device of the air conditioner and a computer readable storage medium, and the method comprises the steps that in the operation process of the air conditioner in a refrigeration mode, the outdoor environment temperature is obtained; when the outdoor environment temperature is smaller than or equal to the first temperature threshold value, the maximum allowable frequency of a compressor is determined according to the outdoor environment temperature, and the compressor is controlled to operate within the maximum allowable frequency; when the outdoor environment temperature is larger than a first temperature threshold value and smaller than or equal to a second temperature threshold value, the compressor is controlled to operate according to the preset frequency, the outdoor fan is controlled to operate according to the preset rotating speed, and the opening degree of an outdoor throttling element is adjusted to the preset opening degree, the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold value. According to the control method, the refrigeration effect of the air conditioner in the high-temperature environment can be improved, it is ensured that the air conditioner cannot stop running in the high-temperature environment, the refrigeration requirement of a user is met, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a control method for an air conditioner, a computer-readable storage medium, an air conditioner, and a control device for an air conditioner. Background Art

[0002] With the continuous economic development and the improvement of living standards, people's pursuit of high-quality life is getting higher and higher, and the purchase volume of air conditioners is also gradually increasing. In addition to the basic refrigeration and heating functions of air conditioners, their comfort is attracting more and more attention, such as high-temperature refrigeration capacity.

[0003] On the one hand, due to environmental changes in the past two years, the weather has become increasingly bad, and there are more and more high-temperature weather. On the other hand, with the pigeon cage design of floors and the uncertainty of space installation positions, the installation environment temperature of air conditioners deteriorates. The longer the outdoor unit of the air conditioner operates in a high-temperature environment, in order to ensure the reliability and durable operation of the air conditioner, the operating frequency of the compressor decreases step by step at high temperatures, and the operating frequency of the compressor is very low at high temperatures, and even stops at high temperatures. This makes it impossible for users to use the air conditioner at high temperatures, failing to meet the user's usage requirements. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to some extent. For this reason, the first object of the present invention is to propose a control method for an air conditioner. When the outdoor ambient temperature is less than or equal to the first temperature threshold, determine the maximum allowable frequency of the compressor according to the outdoor ambient temperature, and control the compressor to operate within the maximum allowable frequency; when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, control the compressor to operate at a preset frequency, control the outdoor fan to operate at a preset speed, and adjust the opening degree of the outdoor throttling element to a preset opening degree, so as to improve the refrigeration effect of the air conditioner in a high-temperature outdoor environment, ensure that the air conditioner does not stop operating in a high-temperature environment, meet the user's refrigeration requirements, and improve the user experience.

[0005] The second object of the present invention is to propose a computer-readable storage medium.

[0006] The third object of the present invention is to propose an air conditioner.

[0007] The fourth object of the present invention is to propose a control device for an air conditioner.

[0008] To achieve the above object, an embodiment of the first aspect of the present invention provides a control method for an air conditioner, the method comprising: during the operation of the air conditioner in a cooling mode, obtaining the outdoor ambient temperature; when the outdoor ambient temperature is less than or equal to a first temperature threshold, determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature, and controlling the compressor to operate within the maximum allowable frequency; when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to a second temperature threshold, controlling the compressor to operate at a preset frequency, controlling the outdoor fan to operate at a preset speed, and adjusting the opening degree of the outdoor throttling element to a preset opening degree, wherein the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold.

[0009] According to the control method of the air conditioner in the embodiment of the present invention, during the operation of the air conditioner in a cooling mode, the outdoor ambient temperature is obtained. When the outdoor ambient temperature is less than or equal to the first temperature threshold, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature, and the compressor is controlled to operate within the maximum allowable frequency. When the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, the compressor is controlled to operate at a preset frequency, the outdoor fan is controlled to operate at a preset speed, and the opening degree of the outdoor throttling element is adjusted to a preset opening degree, wherein the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold. Thus, this method can improve the cooling effect of the air conditioner in a high outdoor temperature environment, ensure that the air conditioner does not stop operating in a high temperature environment, meet the user's cooling requirements, and improve the user experience.

[0010] In addition, the control method of the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:

[0011] According to an embodiment of the present invention, the method further comprises: when the outdoor ambient temperature is greater than the second temperature threshold, controlling the compressor to shut down.

[0012] According to an embodiment of the present invention, the preset speed is the maximum allowable speed of the outdoor fan, and the preset opening degree is the maximum allowable opening degree of the outdoor throttling element.

[0013] According to an embodiment of the present invention, determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature includes: when the outdoor ambient temperature is less than or equal to the first temperature threshold and greater than or equal to the third temperature threshold, determining the temperature range where the outdoor ambient temperature is located, and calculating the maximum allowable frequency based on the preset linear relationship corresponding to the temperature range and the outdoor ambient temperature, wherein the third temperature threshold is less than the first temperature threshold; when the outdoor ambient temperature is less than the third temperature threshold, determining that the maximum allowable frequency is the maximum allowable frequency corresponding to the third temperature threshold.

[0014] According to an embodiment of the present invention, the slope of the preset linear relationship is negatively correlated with the outdoor ambient temperature.

[0015] According to an embodiment of the present invention, controlling the compressor to operate within the maximum allowable frequency includes: determining the target frequency of the compressor based on the target refrigeration temperature; when the target frequency is greater than or equal to the maximum allowable frequency, controlling the compressor to operate at the maximum allowable frequency; when the target frequency is less than the maximum allowable frequency, controlling the compressor to operate at the target frequency.

[0016] According to an embodiment of the present invention, the value range of the first temperature threshold is 60°C to 62°C, and the value range of the second temperature threshold is 65°C to 67°C.

[0017] To achieve the above object, an embodiment of the second aspect of the present invention provides a computer-readable storage medium, on which a program is stored, and when the program is executed by a processor, the above control method of the air conditioner is implemented.

[0018] According to the computer-readable storage medium of the embodiment of the present invention, by implementing the above control method of the air conditioner during execution, the refrigeration effect of the air conditioner in a high outdoor temperature environment can be improved, ensuring that the air conditioner does not stop running in a high temperature environment, meeting the refrigeration needs of users, and improving the user experience.

[0019] To achieve the above object, an air conditioner provided by an embodiment of the third aspect of the present invention includes a memory, a processor, and a program stored on the memory and executable on the processor. When the processor executes the program, the above control method of the air conditioner is implemented.

[0020] According to the air conditioner of the embodiment of the present invention, by implementing the above control method of the air conditioner, the refrigeration effect of the air conditioner in a high outdoor temperature environment can be improved, ensuring that the air conditioner does not stop running in a high temperature environment, meeting the refrigeration needs of users, and improving the user experience.

[0021] To achieve the above object, an embodiment of the fourth aspect of the present invention provides a control device for an air conditioner, the device includes: an acquisition module, configured to acquire the outdoor ambient temperature during the operation of the air conditioner in a cooling mode; a control module, configured to determine the maximum allowable frequency of the compressor according to the outdoor ambient temperature and control the compressor to operate within the maximum allowable frequency when the outdoor ambient temperature is less than or equal to a first temperature threshold; the control module is further configured to control the compressor to operate at a preset frequency, control the outdoor fan to operate at a preset speed, and adjust the opening degree of the outdoor throttling element to a preset opening degree when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold.

[0022] According to the control device of the air conditioner in the embodiment of the present invention, the acquisition module is configured to acquire the outdoor ambient temperature during the operation of the air conditioner in a cooling mode, and the control module is configured to determine the maximum allowable frequency of the compressor according to the outdoor ambient temperature and control the compressor to operate within the maximum allowable frequency when the outdoor ambient temperature is less than or equal to a first temperature threshold. The control module is further configured to control the compressor to operate at a preset frequency, control the outdoor fan to operate at a preset speed, and adjust the opening degree of the outdoor throttling element to a preset opening degree when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold. Thus, the device can improve the cooling effect of the air conditioner in a high-temperature outdoor environment, ensure that the air conditioner does not stop running in a high-temperature environment, meet the user's cooling needs, and improve the user experience.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0024] Figure 1 It is a flowchart of the control method of the air conditioner according to the embodiment of the present invention;

[0025] Figure 2 It is a flowchart of the control method of the air conditioner according to a specific example of the present invention;

[0026] Figure 3 It is a block diagram of the air conditioner according to the embodiment of the present invention;

[0027] Figure 4 It is a block diagram of the control device of the air conditioner according to the embodiment of the present invention. Detailed Embodiments

[0028] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] The control method of an air conditioner, a computer-readable storage medium, an air conditioner, and a control device of an air conditioner proposed according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0030] Figure 1 It is a flowchart of the control method of an air conditioner according to an embodiment of the present invention.

[0031] As Figure 1 shown, the control method of the air conditioner according to the embodiment of the present invention may include the following steps:

[0032] S1, during the operation of the air conditioner in the cooling mode, obtain the outdoor ambient temperature.

[0033] S2, when the outdoor ambient temperature is less than or equal to the first temperature threshold, determine the maximum allowable frequency of the compressor according to the outdoor ambient temperature, and control the compressor to operate within the maximum allowable frequency.

[0034] S3, when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, control the compressor to operate at a preset frequency, control the outdoor fan to operate at a preset speed, and adjust the opening degree of the outdoor throttling element to a preset opening degree, where the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold. Among them, the first temperature threshold and the second temperature threshold can be determined according to the actual situation.

[0035] Specifically, the operating modes of the air conditioner may include a cooling mode, a heating mode, a dehumidifying mode, a blowing mode, etc., and the specific working mode can be determined according to the user's selection. When the air conditioner operates in the cooling mode, the outdoor ambient temperature is obtained. For example, it can be obtained through an outdoor temperature sensor. Also, when obtaining the outdoor ambient temperature, the weather information at the location where the air conditioner is located can also be obtained. For example, the location where the air conditioner is located is obtained through GPS (Global Positioning System), and when connected to the network, the weather information can be obtained by calling a weather application or an online weather service. The weather information may include temperature information corresponding to different times, and the outdoor ambient temperature can be determined according to the current time. In addition, the installation environment information of the outdoor unit of the air conditioner also has a certain impact on the refrigeration operation of the air conditioner. Therefore, the installation environment information of the outdoor unit can also be obtained, and the temperature information can be corrected according to the installation environment information to obtain the outdoor ambient temperature. For example, the corresponding correction coefficient can be determined according to the installation environment information, and the outdoor ambient temperature can be obtained by multiplying the correction coefficient by the temperature obtained according to the temperature information.

[0036] After obtaining the outdoor ambient temperature, the magnitude relationship between the outdoor ambient temperature and the first temperature threshold is compared. When the outdoor ambient temperature is less than or equal to the first temperature threshold, the maximum allowable frequency of the compressor can be determined according to the outdoor ambient temperature. For example, the maximum allowable frequency of the compressor can be determined through a preset corresponding relationship. For example, the relationship between the outdoor ambient temperature and the maximum allowable frequency of the compressor is determined in advance. After the outdoor ambient temperature is determined, the corresponding relationship can be directly called to obtain the maximum allowable frequency of the compressor. In addition, the maximum allowable frequency of the compressor can also be directly determined through the factory data of the air conditioner. After determining the maximum allowable frequency of the compressor, the compressor can be controlled to operate within the maximum allowable frequency, that is, when the air conditioner operates at different outdoor ambient temperatures, the frequency of the compressor does not exceed the maximum allowable frequency.

[0037] If the outdoor ambient temperature is greater than the first temperature threshold, the magnitude relationship between the outdoor ambient temperature and the second temperature threshold is compared. When the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, it indicates that the current outdoor ambient temperature is relatively high, and the compressor can be controlled to operate at a preset frequency. The preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold. For example, the preset frequency can enable the compressor to work normally. If the frequency is too low, the electronic control will not be able to drive the compressor to operate. That is to say, when the outdoor ambient temperature rises, the frequency of the compressor is increased to improve the reliability of the electronic control drive, so that the air conditioner can continue to operate at a higher temperature instead of shutting down, thereby meeting the user's cooling needs and improving the user experience.

[0038] In addition, when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, the rotational speed of the outdoor fan and the opening degree of the outdoor throttling element can also be controlled. For example, the outdoor fan can be controlled to operate at a preset rotational speed, so as to reduce the heat generation of the electronic control unit and ensure the normal operation of the electronic control unit. In addition, the opening degree of the outdoor throttling element can be adjusted to a preset opening degree, so as to reduce the system operating pressure, increase the reliability of the pipeline, and enable the refrigerant to flow normally in the pipeline. Among them, the outdoor throttling element can be an electronic expansion valve. By adjusting the opening degree of the electronic expansion valve, the flow rate of the refrigerant in the pipeline can be controlled, thereby affecting the pressure in the heat exchanger.

[0039] Therefore, when the outdoor ambient temperature is less than or equal to the first temperature threshold, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature, and the compressor is controlled to operate within the maximum allowable frequency. When the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, the compressor is controlled to operate at a preset frequency, the outdoor fan is controlled to operate at a preset rotational speed, and the opening degree of the outdoor throttling element is adjusted to a preset opening degree, so as to improve the refrigeration effect of the air conditioner in the outdoor high-temperature environment, ensure that the air conditioner does not stop operating in the high-temperature environment, meet the user's refrigeration needs, and improve the user experience.

[0040] According to an embodiment of the present invention, the control method of the air conditioner further includes: when the outdoor ambient temperature is greater than the second temperature threshold, controlling the compressor to stop.

[0041] Specifically, when comparing the magnitude relationship between the outdoor ambient temperature and the second temperature threshold, if the outdoor ambient temperature is greater than the second temperature threshold, it indicates that the outdoor ambient temperature is too high at this time, and the compressor of the air conditioner is prone to overheating in the high-temperature environment. To prevent damage to the compressor caused by overheating, the compressor can be controlled to stop for cooling, that is, the compressor requires more cooling to maintain the normal operating temperature in the high-temperature environment.

[0042] According to an embodiment of the present invention, the preset rotational speed is the maximum allowable rotational speed of the outdoor fan, and the preset opening degree is the maximum allowable opening degree of the outdoor throttling element.

[0043] Specifically, when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, controlling the outdoor fan to operate at a preset speed and adjusting the opening of the outdoor throttling element to the preset opening, the outdoor fan can be controlled to operate at the maximum allowable speed of the outdoor fan, that is, quickly dissipate heat for the electrical parts (such as motors, wires, etc.) through the maximum speed of the outdoor fan, reduce the heat generation of the electronic control, and control the opening of the outdoor throttling element to the maximum allowable opening of the outdoor throttling element, so that more refrigerant passes through the heat exchanger, reduce the pressure of the heat exchanger, reduce the load of the compressor, prevent the compressor from overheating, and can increase the reliability of the pipeline, prevent the refrigerant from liquefying prematurely in the pipeline, and can achieve better refrigeration effect.

[0044] According to an embodiment of the present invention, determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature includes: when the outdoor ambient temperature is less than or equal to the first temperature threshold and greater than or equal to the third temperature threshold, determining the temperature range where the outdoor ambient temperature is located, and calculating the maximum allowable frequency based on the preset linear relationship corresponding to the temperature range and the outdoor ambient temperature, where the third temperature threshold is less than the first temperature threshold; when the outdoor ambient temperature is less than the third temperature threshold, determining the maximum allowable frequency as the maximum allowable frequency corresponding to the third temperature threshold. Among them, the third temperature threshold can be determined according to the actual situation, and the slope of the preset linear relationship is negatively correlated with the outdoor ambient temperature.

[0045] Specifically, when determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature, the maximum allowable frequency of the compressor can be determined according to the temperature range where the outdoor ambient temperature is located. Compare the size relationship between the outdoor ambient temperature, the first temperature threshold and the third temperature threshold. When the outdoor ambient temperature is less than or equal to the first temperature threshold and greater than or equal to the third temperature threshold, the temperature range where the outdoor ambient temperature is located can be determined. For example, the first temperature threshold is 61 °C and the third temperature threshold is 45 °C. Multiple temperature ranges can be divided between the third temperature threshold and the first temperature threshold. For example, the temperature range corresponding to 45 °C to 49 °C is recorded as the first temperature range, the temperature range corresponding to 49 °C to 56 °C is recorded as the second temperature range, and the temperature range corresponding to 56 °C to 61 °C is recorded as the third temperature range. Compare the outdoor ambient temperature with multiple temperature ranges. For example, when the outdoor ambient temperature is 47 °C, it can be determined that the outdoor ambient temperature is in the first temperature range; when the outdoor ambient temperature is 52 °C, it can be determined that the outdoor ambient temperature is in the second temperature range; when the outdoor ambient temperature is 60 °C, it can be determined that the outdoor ambient temperature is in the third temperature range. It should be noted that the division of the temperature range can be determined according to the actual situation, and the temperature ranges corresponding to different temperature ranges can be the same or different.

[0046] After determining the temperature range, the maximum allowable frequency can be calculated according to the preset linear relationship corresponding to the temperature range and the outdoor ambient temperature. The slope of the preset linear relationship is negatively correlated with the outdoor ambient temperature, that is, the greater the outdoor ambient temperature, the smaller the slope of the preset linear relationship, and thus the smaller the determined frequency of the compressor. The preset linear relationship can be preset according to the actual situation and stored in the memory. Different temperature ranges correspond to different preset linear relationships. For example, still taking the temperature points in the above temperature range division as an example, when the outdoor ambient temperature is 45 degrees Celsius, the stable and reliable operating frequency A of the compressor can be measured in advance. When the outdoor ambient temperature is 49 degrees Celsius, the stable and reliable operating frequency B of the compressor can be measured in advance. When the outdoor ambient temperature is 56 degrees Celsius, the stable and reliable operating frequency C of the compressor can be measured in advance. When the outdoor ambient temperature is 61 degrees Celsius, the stable and reliable operating frequency D of the compressor can be measured in advance. Thus, within each temperature range, according to the outdoor ambient temperatures corresponding to the beginning and end of the range and the corresponding operating frequencies, the corresponding frequency curve of the range can be determined, and then the preset linear relationship can be obtained. When determining an outdoor ambient temperature, the operating frequency of the compressor, that is, the maximum allowable frequency, can be determined according to the outdoor ambient temperature and the preset linear relationship.

[0047] When comparing the magnitude relationship between the outdoor ambient temperature and the first temperature threshold and the third temperature threshold, when the outdoor ambient temperature is less than the third temperature threshold, the maximum allowable frequency can be determined as the maximum allowable frequency corresponding to the third temperature threshold. That is to say, when the outdoor ambient temperature is relatively low, such as less than 45 degrees Celsius, the maximum allowable frequency of the compressor is the maximum allowable frequency corresponding to the third temperature threshold, that is, the maximum allowable frequency does not change with the change of the outdoor ambient temperature, so that the compressor operates at a higher frequency, which can better achieve refrigeration in the room, reduce the indoor temperature, and improve user comfort.

[0048] According to an embodiment of the present invention, controlling the compressor to operate within the maximum allowable frequency includes: determining the target frequency of the compressor based on the target refrigeration temperature; when the target frequency is greater than or equal to the maximum allowable frequency, controlling the compressor to operate at the maximum allowable frequency; when the target frequency is less than the maximum allowable frequency, controlling the compressor to operate at the target frequency.

[0049] Specifically, when controlling the compressor to operate within the maximum allowable frequency, the target frequency of the compressor can be determined first according to the target refrigeration temperature. The target refrigeration temperature can be set manually by the user. For example, it can be set through the air conditioner remote control, or through a mobile device interconnected with the air conditioner, such as on the corresponding application of the mobile phone. Or the target refrigeration temperature can be automatically set according to the outdoor ambient temperature. When determining the target frequency of the compressor according to the target refrigeration temperature, the target frequency can be determined according to the pre-set corresponding relationship. For example, the relationship between the target refrigeration temperature and the target frequency is determined in advance. After the target refrigeration temperature is determined, the corresponding relationship can be directly called to obtain the target frequency.

[0050] After determining the target frequency of the compressor, compare the magnitude relationship between the target frequency and the maximum allowable frequency. When the target frequency is greater than or equal to the maximum allowable frequency, it indicates that the current target frequency is too high. The compressor can be controlled to operate at the maximum allowable frequency to ensure the normal operation of the compressor. When the target frequency is less than the maximum allowable frequency, the compressor can be controlled to operate at the target frequency, so that the compressor can be in the best operating state. For example, when the refrigeration demand is low, making the frequency of the compressor operate at a value less than the maximum allowable frequency can achieve the purpose of saving electricity.

[0051] According to an embodiment of the present invention, the value range of the first temperature threshold is 60°C to 62°C, and the value range of the second temperature threshold is 65°C to 67°C.

[0052] Specifically, the value range of the first temperature threshold is 60°C to 62°C, and the value range of the second temperature threshold is 65°C to 67°C. For example, the first temperature threshold can be 60°C, 60.5°C, 61°C, 62°C, etc., and the second temperature threshold can be 65°C, 66°C, 66.4°C, 67°C, etc. When the outdoor ambient temperature is greater than the first temperature threshold (such as 61°C) and less than or equal to the second temperature threshold (such as 67°C), the compressor can be controlled to operate at a maximum allowable frequency greater than the corresponding value of the first temperature threshold, and the outdoor fan can be controlled to operate at the maximum allowable speed, and the opening degree of the outdoor throttling element can be adjusted to the maximum allowable opening degree, so that when the outdoor ambient temperature is between 61°C and 67°C, the air conditioner can continue to operate. When the outdoor ambient temperature is higher than 67°C, the compressor can be controlled to stop.

[0053] The following combines Figure 2 to describe the control method of the present invention.

[0054] As a specific example, the control method of the air conditioner of the present invention may include the following steps:

[0055] S101, during the operation of the air conditioner in the cooling mode, obtain the outdoor ambient temperature.

[0056] S102, Determine whether the outdoor ambient temperature is less than or equal to the first temperature threshold and greater than or equal to the third temperature threshold. If yes, execute step S103; if no, execute step S109.

[0057] S103, Determine the temperature range where the outdoor ambient temperature is located, and calculate the maximum allowable frequency based on the preset linear relationship corresponding to the temperature range and the outdoor ambient temperature.

[0058] S104, Determine the target frequency of the compressor based on the target refrigeration temperature.

[0059] S105, Determine whether the target frequency is greater than or equal to the maximum allowable frequency. If yes, execute step S106; if no, execute step S111.

[0060] S106, Control the compressor to operate at the maximum allowable frequency.

[0061] S107, Determine whether the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold. If yes, execute step S108; if no, execute step S112.

[0062] S108, Control the compressor to operate at a maximum allowable frequency greater than the one corresponding to the first temperature threshold, control the outdoor fan to operate at the maximum allowable speed, and adjust the opening of the outdoor throttle element to the maximum allowable opening.

[0063] S109, Determine whether the outdoor ambient temperature is less than the third temperature threshold. If yes, execute step S110; if no, execute step S107.

[0064] S110, Determine that the maximum allowable frequency is the one corresponding to the third temperature threshold, and enter step S104.

[0065] S111, Control the compressor to operate at the target frequency, and enter step S104.

[0066] S112, Determine whether the outdoor ambient temperature is greater than the second temperature threshold. If yes, execute step S113; if no, execute step S101.

[0067] S113, Control the compressor to stop.

[0068] In summary, according to the control method of the air conditioner according to the embodiments of the present invention, during the operation of the air conditioner in the cooling mode, the outdoor ambient temperature is acquired. When the outdoor ambient temperature is less than or equal to the first temperature threshold, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature, and the compressor is controlled to operate within the maximum allowable frequency. When the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, the compressor is controlled to operate at a preset frequency, the outdoor fan is controlled to operate at a preset speed, and the opening degree of the outdoor throttling element is adjusted to a preset opening degree, where the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold. Thus, this method can improve the cooling effect of the air conditioner in the outdoor high-temperature environment, ensure that the air conditioner does not stop running in the high-temperature environment, meet the user's cooling demand, and improve the user experience.

[0069] Corresponding to the above embodiments, the present invention also proposes a computer-readable storage medium.

[0070] The computer-readable storage medium according to the embodiments of the present invention has a program stored thereon, and when the program is executed by a processor, the above control method of the air conditioner is implemented.

[0071] According to the computer-readable storage medium of the embodiments of the present invention, by executing the above control method of the air conditioner, the cooling effect of the air conditioner in the outdoor high-temperature environment can be improved, ensure that the air conditioner does not stop running in the high-temperature environment, meet the user's cooling demand, and improve the user experience.

[0072] Corresponding to the above embodiments, the present invention also proposes an air conditioner.

[0073] As Figure 3 shown, the air conditioner 200 according to the embodiments of the present invention may include: a memory 210, a processor 220, and a program stored on the memory 210 and executable on the processor 220. When the processor 220 executes the program, the above control method of the air conditioner is implemented.

[0074] According to the air conditioner of the embodiments of the present invention, by executing the above control method of the air conditioner, the cooling effect of the air conditioner in the outdoor high-temperature environment can be improved, ensure that the air conditioner does not stop running in the high-temperature environment, meet the user's cooling demand, and improve the user experience.

[0075] Corresponding to the above embodiments, the present invention also proposes a control device for an air conditioner.

[0076] As Figure 4 shown, the control device 100 for an air conditioner according to the embodiments of the present invention includes: an acquisition module 110 and a control module 120.

[0077] Among them, the acquisition module 110 is used to acquire the outdoor ambient temperature during the operation of the air conditioner in the cooling mode. The control module 120 is used to determine the maximum allowable frequency of the compressor according to the outdoor ambient temperature when the outdoor ambient temperature is less than or equal to the first temperature threshold, and control the compressor to operate within the maximum allowable frequency. The control module 120 is further used to control the compressor to operate at a preset frequency, control the outdoor fan to operate at a preset speed, and adjust the opening degree of the outdoor throttling element to a preset opening degree when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, where the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold.

[0078] According to an embodiment of the present invention, the control module 120 is further used to: control the compressor to stop when the outdoor ambient temperature is greater than the second temperature threshold.

[0079] According to an embodiment of the present invention, the preset speed is the maximum allowable speed of the outdoor fan, and the preset opening degree is the maximum allowable opening degree of the outdoor throttling element.

[0080] According to an embodiment of the present invention, the control module 120 determines the maximum allowable frequency of the compressor according to the outdoor ambient temperature, specifically: when the outdoor ambient temperature is less than or equal to the first temperature threshold and greater than or equal to the third temperature threshold, determine the temperature range where the outdoor ambient temperature is located, and calculate the maximum allowable frequency based on the preset linear relationship corresponding to the temperature range and the outdoor ambient temperature, where the third temperature threshold is less than the first temperature threshold; when the outdoor ambient temperature is less than the third temperature threshold, determine the maximum allowable frequency as the maximum allowable frequency corresponding to the third temperature threshold.

[0081] According to an embodiment of the present invention, the slope of the preset linear relationship is negatively correlated with the outdoor ambient temperature.

[0082] According to an embodiment of the present invention, the control module 120 controls the compressor to operate within the maximum allowable frequency, specifically: determine the target frequency of the compressor based on the target cooling temperature; when the target frequency is greater than or equal to the maximum allowable frequency, control the compressor to operate at the maximum allowable frequency; when the target frequency is less than the maximum allowable frequency, control the compressor to operate at the target frequency.

[0083] According to an embodiment of the present invention, the value range of the first temperature threshold is 60°C to 62°C, and the value range of the second temperature threshold is 65°C to 67°C.

[0084] It should be noted that for the details not disclosed in the control device of the air conditioner in the embodiments of the present invention, please refer to the details disclosed in the control method of the air conditioner in the embodiments of the present invention, and will not be elaborated here specifically.

[0085] The control device of the air conditioner according to an embodiment of the present invention, the acquisition module is configured to acquire the outdoor ambient temperature during the operation of the air conditioner in the cooling mode, and the control module is configured to determine the maximum allowable frequency of the compressor according to the outdoor ambient temperature when the outdoor ambient temperature is less than or equal to the first temperature threshold, and control the compressor to operate within the maximum allowable frequency. The control module is further configured to control the compressor to operate at a preset frequency, control the outdoor fan to operate at a preset speed, and adjust the opening degree of the outdoor throttling element to a preset opening degree when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold. Thus, the device can improve the cooling effect of the air conditioner in a high outdoor temperature environment, ensure that the air conditioner does not stop running in a high temperature environment, meet the user's cooling needs, and improve the user experience.

[0086] It should be noted that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in combination with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation, or other appropriate processing as necessary, and then stored in a computer memory.

[0087] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0089] 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 specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0090] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A control method for an air conditioner, characterized in that, The method includes: During the operation of the air conditioner in the cooling mode, obtaining the outdoor ambient temperature; When the outdoor ambient temperature is less than or equal to the first temperature threshold, determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature, and controlling the compressor to operate within the maximum allowable frequency; When the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, controlling the compressor to operate at a preset frequency, controlling the outdoor fan to operate at a preset speed, and adjusting the opening degree of the outdoor throttle element to a preset opening degree, wherein the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold.

2. The method according to claim 1, characterized in that, The method further includes: When the outdoor ambient temperature is greater than the second temperature threshold, controlling the compressor to stop.

3. The method according to claim 1, wherein The preset speed is the maximum allowable speed of the outdoor fan, and the preset opening degree is the maximum allowable opening degree of the outdoor throttle element.

4. The method according to any one of claims 1 to 3, characterized in that The determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature includes: When the outdoor ambient temperature is less than or equal to the first temperature threshold and greater than or equal to the third temperature threshold, determining the temperature range where the outdoor ambient temperature is located, and calculating the maximum allowable frequency based on the preset linear relationship corresponding to the temperature range and the outdoor ambient temperature, wherein the third temperature threshold is less than the first temperature threshold; When the outdoor ambient temperature is less than the third temperature threshold, determining the maximum allowable frequency as the maximum allowable frequency corresponding to the third temperature threshold.

5. The method according to claim 4, wherein The slope of the preset linear relationship is negatively correlated with the outdoor ambient temperature.

6. The method according to any one of claims 1 to 3, characterized in that The controlling the compressor to operate within the maximum allowable frequency includes: Determining the target frequency of the compressor based on the target cooling temperature; When the target frequency is greater than or equal to the maximum allowable frequency, controlling the compressor to operate at the maximum allowable frequency; When the target frequency is less than the maximum allowable frequency, controlling the compressor to operate at the target frequency.

7. The method according to any one of claims 1 to 3, characterized in that The value range of the first temperature threshold is 60°C to 62°C, and the value range of the second temperature threshold is 65°C to 67°C.

8. A computer-readable storage medium, characterized in that, Stored thereon is a program which, when executed by a processor, implements the control method of the air conditioner according to any one of claims 1-7.

9. An air conditioner, characterized in that, Includes: A memory, a processor, and a program stored on the memory and executable on the processor. When the processor executes the program, it implements the control method of the air conditioner according to any one of claims 1-7.

10. A control device for an air conditioner, characterized in that, The device includes: An acquisition module for obtaining the outdoor ambient temperature during the operation of the air conditioner in the cooling mode; A control module for, when the outdoor ambient temperature is less than or equal to the first temperature threshold, determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature, and controlling the compressor to operate within the maximum allowable frequency; The control module is further configured to, when the outdoor ambient temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, control the compressor to operate at a preset frequency, control the outdoor fan to operate at a preset rotational speed, and adjust the opening degree of the outdoor throttling element to a preset opening degree, where the second temperature threshold is greater than the first temperature threshold, and the preset frequency is greater than the maximum allowable frequency corresponding to the first temperature threshold.

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