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

Abstract

The invention discloses an air conditioner, a control method and device of the air conditioner and a storage medium, and the method comprises the steps that when the air conditioner operates in a refrigeration mode, the outdoor environment temperature, the inlet temperature of an outdoor heat exchanger and the outlet temperature of the outdoor heat exchanger are obtained; and when the outdoor environment temperature is larger than or equal to the preset environment temperature threshold value, the opening degree of the throttling assembly is adjusted according to the inlet temperature and the outdoor environment temperature, and / or the rotating speed of the outdoor fan is adjusted according to the outlet temperature and the outdoor environment temperature. According to the control method, under the condition that the outdoor environment temperature is too high, the compressor can be protected, the service life of the compressor is prolonged, the heat dissipation effect of the electric controller is improved, and the service life of the electric controller is prolonged.

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 control device for an air conditioner, an air conditioner and a computer-readable storage medium. Background Art

[0002] At present, there is no difference between air-cooled and high-temperature refrigerant ring models in the refrigeration control method of air conditioners. They are divided into different refrigeration temperature zones according to different outdoor ambient temperatures. The speed of the external unit is fixed in each temperature zone. Under certain frequency and working conditions, the exhaust temperature and pressure are also determined. However, for high-temperature refrigerant ring models, no differentiated control and protection are adopted. Especially for refrigerant ring models, no consideration is given to how to better cool down the electric control to give full play to the advantages of high-temperature refrigeration and protect the compressor at the same time. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the first object of the present invention is to provide a control method for an air conditioner, when the air conditioner is operated in a cooling mode and when the outdoor ambient temperature is greater than or equal to a preset ambient temperature threshold, the opening of the throttling component is adjusted according to the inlet temperature and the outdoor ambient temperature, and / or the speed of the outdoor fan is adjusted according to the outlet temperature and the outdoor ambient temperature, so that when the outdoor ambient temperature is too high, the compressor can be protected and the service life of the compressor can be extended, and the heat dissipation effect of the electronic control can be improved and the service life of the electronic control can be extended.

[0004] A second object of the present invention is to provide a control device for an air conditioner.

[0005] The third object of the present invention is to provide an air conditioner.

[0006] A fourth object of the present invention is to provide a computer-readable storage medium.

[0007] To achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a control method for an air conditioner, the method comprising: when the air conditioner is operating in a cooling mode, obtaining the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger and the outlet temperature of the outdoor heat exchanger; when the outdoor ambient temperature is greater than or equal to a preset ambient temperature threshold, adjusting the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature, and / or adjusting the speed of the outdoor fan according to the outlet temperature and the outdoor ambient temperature.

[0008] According to the control method of the air conditioner of the embodiment of the present invention, when the air conditioner is running in cooling mode, the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger and the outlet temperature of the outdoor heat exchanger are obtained; when the outdoor ambient temperature is greater than or equal to the preset ambient temperature threshold, the opening of the throttling component is adjusted according to the inlet temperature and the outdoor ambient temperature, and / or the speed of the outdoor fan is adjusted according to the outlet temperature and the outdoor ambient temperature. Therefore, the method can protect the compressor and extend the service life of the compressor when the outdoor ambient temperature is too high, and improve the heat dissipation effect of the electronic control and extend the service life of the electronic control.

[0009] In addition, the control method of the air conditioner according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to one embodiment of the present invention, the controlling the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature includes: determining an inlet temperature threshold and an opening adjustment coefficient based on the outdoor ambient temperature; when the inlet temperature is greater than or equal to the inlet temperature threshold, adjusting the opening of the throttling component according to a first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient.

[0011] According to one embodiment of the present invention, the opening of the throttling component is adjusted according to the first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient, including: obtaining the product of the first temperature difference and the opening adjustment coefficient to obtain the opening adjustment amount; obtaining the sum of the current opening of the throttling component and the opening adjustment amount to obtain the target opening of the throttling component; and adjusting the opening of the throttling component according to the target opening.

[0012] According to one embodiment of the present invention, determining the inlet temperature threshold and the opening adjustment coefficient based on the outdoor ambient temperature includes: determining the temperature range in which the outdoor ambient temperature is located; determining the inlet temperature threshold and the opening adjustment coefficient based on the temperature range, wherein different temperature ranges correspond to different inlet temperature thresholds and opening adjustment coefficients.

[0013] According to one embodiment of the present invention, the speed of the outdoor fan is adjusted according to the outlet temperature and the outdoor ambient temperature, including: determining an outlet temperature threshold and a speed adjustment coefficient based on the outdoor ambient temperature; when the outlet temperature is greater than or equal to the outlet temperature threshold, adjusting the speed of the outdoor fan according to a second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient.

[0014] According to one embodiment of the present invention, the speed of the outdoor fan is adjusted according to the second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient, including: obtaining the product of the second temperature difference and the speed adjustment coefficient to obtain the speed adjustment amount; obtaining the sum of the current speed of the outdoor fan and the speed adjustment amount to obtain the target speed of the outdoor fan; and adjusting the speed of the outdoor fan according to the target speed.

[0015] According to one embodiment of the present invention, determining the outlet temperature threshold and the speed adjustment coefficient based on the outdoor ambient temperature includes: determining the temperature range in which the outdoor ambient temperature is located; determining the outlet temperature threshold and the speed adjustment coefficient based on the temperature range, wherein different temperature ranges correspond to different outlet temperature thresholds and speed adjustment coefficients.

[0016] According to an embodiment of the present invention, the method further comprises: when the outdoor ambient temperature is less than the preset ambient temperature threshold, adjusting the opening of the throttling component and the rotation speed of the outdoor fan according to the frequency of the compressor.

[0017] To achieve the above-mentioned purpose, the second aspect of the present invention proposes a control device for an air conditioner, comprising: an acquisition module, used to obtain the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger and the outlet temperature of the outdoor heat exchanger when the air conditioner is operating in a cooling mode; a control module, used to adjust the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature when the outdoor ambient temperature is greater than or equal to a preset ambient temperature threshold, and / or, adjust the speed of the outdoor fan according to the outlet temperature and the outdoor ambient temperature.

[0018] According to the control device of the air conditioner of the embodiment of the present invention, the acquisition module is used to acquire the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger and the outlet temperature of the outdoor heat exchanger when the air conditioner is running in the cooling mode, and the control module is used to adjust the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature when the outdoor ambient temperature is greater than or equal to the preset ambient temperature threshold, and / or adjust the speed of the outdoor fan according to the outlet temperature and the outdoor ambient temperature. Thus, the device can protect the compressor and extend the service life of the compressor when the outdoor ambient temperature is too high, and improve the heat dissipation effect of the electronic control and extend the service life of the electronic control.

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

[0020] The air conditioner according to the embodiment of the present invention can protect the compressor and extend the service life of the compressor when the outdoor ambient temperature is too high by executing the above-mentioned air conditioner control method, and can also improve the heat dissipation effect of the electronic control and extend the service life of the electronic control.

[0021] To achieve the above-mentioned purpose, a fourth aspect of the present invention provides a computer-readable storage medium having a program stored thereon, which implements the above-mentioned air conditioner control method when executed by a processor.

[0022] According to the computer-readable storage medium of an embodiment of the present invention, by implementing the above-mentioned air conditioner control method during execution, it is possible to protect the compressor and extend the service life of the compressor when the outdoor ambient temperature is too high, and to improve the heat dissipation effect of the electronic control and extend the service life of the electronic control.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a flow chart of a method for controlling an air conditioner according to an embodiment of the present invention;

[0025] Figure 2 is a flow chart of a method for controlling an air conditioner according to a specific example of the present invention;

[0026] Figure 3 is a block diagram of a control device for an air conditioner according to an embodiment of the present invention;

[0027] Figure 4 FIG. 4 is a block diagram of an air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The following describes a method for controlling an air conditioner, a control device for an air conditioner, an air conditioner, and a computer-readable storage medium according to embodiments of the present invention with reference to the accompanying drawings.

[0030] Figure 1 FIG. 4 is a flow chart of a method for controlling an air conditioner according to an embodiment of the present invention.

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

[0032] S1, when the air conditioner is operated in a cooling mode, obtaining an outdoor ambient temperature, an inlet temperature of an outdoor heat exchanger, and an outlet temperature of an outdoor heat exchanger.

[0033] S2, when the outdoor ambient temperature is greater than or equal to a preset ambient temperature threshold, adjusting the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature, and / or adjusting the speed of the outdoor fan according to the outlet temperature and the outdoor ambient temperature. The preset ambient temperature threshold can be determined according to actual conditions.

[0034] Specifically, the air conditioner has multiple working modes, such as cooling mode, heating mode, air supply mode, etc. The corresponding working mode can be selected according to the user's needs. For example, the user can select cooling mode or heating mode according to the air conditioner remote control, and can also make selections through mobile devices connected to the air conditioner, such as selecting whether the air conditioner runs in cooling mode or heating mode through an application on a mobile phone.

[0035] When the outdoor ambient temperature is high, the air conditioner can be selected to operate in cooling mode, and when the air conditioner is in cooling operation, the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger, and the outlet temperature of the outdoor heat exchanger are obtained. For example, the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger, and the outlet temperature of the outdoor heat exchanger can be obtained through a temperature sensor. After obtaining the outdoor ambient temperature, the outdoor ambient temperature can be compared with the preset ambient temperature threshold. If the current outdoor ambient temperature is greater than or equal to the preset ambient temperature threshold, it means that the current outdoor ambient temperature is high and is in a high temperature state. The compressor of the air conditioner is operating in a high pressure state, and the electronic control is also operating in a high temperature environment. Therefore, the opening of the throttling component can be adjusted according to the inlet temperature and the outdoor ambient temperature. For example, according to a preset table, which contains multiple outdoor ambient temperatures, inlet temperatures and openings of the throttling component, and the outdoor ambient temperature, inlet temperature and opening of the throttling component are in a corresponding relationship, the opening of the corresponding throttling component can be determined according to the outdoor ambient temperature and the inlet temperature, and the higher the outdoor ambient temperature and the inlet temperature, the larger the opening of the throttling component can be determined, thereby reducing the inlet temperature of the outdoor heat exchanger, reducing the pressure, improving the reliability of the operation of each component, and improving the cooling effect of the air conditioner.

[0036] Alternatively, if the current outdoor ambient temperature is greater than or equal to a preset ambient temperature threshold, the speed of the outdoor fan can also be adjusted according to the outlet temperature and the outdoor ambient temperature. For example, according to a preset table, which contains multiple outlet temperatures, outdoor ambient temperatures and outdoor fan speeds, and the outlet temperature, outdoor ambient temperature and outdoor fan speed are in a corresponding relationship, the speed of the corresponding outdoor fan can be determined according to the outlet temperature and the outdoor ambient temperature, and the higher the outlet temperature and the outdoor ambient temperature, the higher the speed of the outdoor fan can be, thereby reducing the outlet temperature of the outdoor heat exchanger, reducing pressure, improving the reliability of the operation of each component, and improving the cooling effect of the air conditioner.

[0037] Alternatively, if the current outdoor ambient temperature is greater than or equal to a preset ambient temperature threshold, the opening of the throttling component can be adjusted according to the inlet temperature and the outdoor ambient temperature, and the speed of the outdoor fan can be adjusted according to the outlet temperature and the outdoor ambient temperature. For example, according to a preset table, the table contains multiple outdoor ambient temperatures, inlet temperatures and openings of the throttling component, and the outdoor ambient temperature, inlet temperature and the opening of the throttling component are in a corresponding relationship. The opening of the corresponding throttling component can be determined according to the outdoor ambient temperature and the inlet temperature, and the higher the outdoor ambient temperature and the inlet temperature, the larger the opening of the throttling component can be determined, thereby reducing the inlet temperature of the outdoor heat exchanger; and according to another preset table, the table contains multiple outlet temperatures, outdoor ambient temperatures and speeds of the outdoor fan, and the outlet temperature, outdoor ambient temperature and the speed of the outdoor fan are in a corresponding relationship. The speed of the corresponding outdoor fan can be determined according to the outlet temperature and the outdoor ambient temperature, and the higher the outlet temperature and the outdoor ambient temperature, the higher the speed of the outdoor fan can be determined, thereby reducing the outlet temperature of the outdoor heat exchanger. When the inlet and outlet temperatures of the outdoor heat exchanger are lowered, the pressure can be reduced, which can improve the reliability of the operation of each component and enhance the cooling effect of the air conditioner.

[0038] Therefore, when the air conditioner is operating in cooling mode, if the outdoor ambient temperature is greater than or equal to the preset ambient temperature threshold, the opening of the throttling component can be adjusted according to the inlet temperature and the outdoor ambient temperature, and / or the speed of the outdoor fan can be adjusted according to the outlet temperature and the outdoor ambient temperature. This can protect the compressor and extend the service life of the compressor when the outdoor ambient temperature is too high, and can also improve the heat dissipation effect of the electronic control and extend the service life of the electronic control.

[0039] According to one embodiment of the present invention, the opening of the throttling component is controlled according to the inlet temperature and the outdoor ambient temperature, including: determining the inlet temperature threshold and the opening adjustment coefficient based on the outdoor ambient temperature; when the inlet temperature is greater than or equal to the inlet temperature threshold, adjusting the opening of the throttling component according to the first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient.

[0040] Specifically, when the opening of the throttling component is controlled according to the inlet temperature and the outdoor ambient temperature, the inlet temperature threshold and the opening adjustment coefficient can be first determined according to the outdoor ambient temperature. Different outdoor ambient temperatures can correspond to different inlet temperature thresholds and opening adjustment coefficients. For example, a pre-set table can be used to store the outdoor ambient temperature, the inlet temperature threshold and the opening adjustment coefficient, and the outdoor ambient temperature and the inlet temperature threshold and the opening adjustment coefficient are in a corresponding relationship. That is, when an outdoor ambient temperature is determined, the corresponding inlet temperature threshold and the opening adjustment coefficient can be determined.

[0041] After obtaining the inlet temperature threshold and the corresponding opening adjustment coefficient, the inlet temperature can be compared with the inlet temperature threshold. If the current inlet temperature is greater than or equal to the inlet temperature threshold, it means that the current inlet temperature of the outdoor heat exchanger is high. The opening of the throttling component can be adjusted according to the first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient. For example, the first temperature difference and the opening adjustment coefficient can be added, and the result can be added to the current opening of the throttling component, so that the opening of the throttling component can be adjusted to improve the reliability of the operation of each component and improve the cooling effect of the air conditioner. In addition, the linear control of the throttling device can be achieved through the outdoor ambient temperature and the inlet temperature.

[0042] In one embodiment of the present invention, the throttling component can be an electronic expansion valve, and the electronic expansion valve has multiple openings, such as the opening can be adjusted from 0 to 500. In addition, if the current inlet temperature is less than the inlet temperature threshold, it means that the current inlet temperature of the outdoor heat exchanger is not particularly high. After a period of time, the size relationship between the inlet temperature and the inlet temperature threshold can be judged again. For example, the size relationship between the inlet temperature and the inlet temperature threshold can be judged again after an interval of one hour. If the inlet temperature is greater than or equal to the inlet temperature threshold, the opening of the throttling component can be adjusted according to the first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient. In addition, after the opening of the throttling component is adjusted, the inlet temperature of the outdoor heat exchanger decreases and is less than or equal to the inlet temperature threshold, and the adjustment of the opening of the throttling component can be stopped.

[0043] According to one embodiment of the present invention, the opening of the throttling component is adjusted according to a first temperature difference between the inlet temperature and the inlet temperature threshold and an opening adjustment coefficient, including: obtaining the product of the first temperature difference and the opening adjustment coefficient to obtain the opening adjustment amount; obtaining the sum of the current opening of the throttling component and the opening adjustment amount to obtain the target opening of the throttling component; and adjusting the opening of the throttling component according to the target opening.

[0044] Specifically, when adjusting the opening of the throttling component according to the first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient, the first temperature difference can be multiplied by the opening adjustment coefficient to obtain the opening adjustment amount, and then the current opening of the throttling component is obtained, and the current opening and the opening adjustment amount are added to obtain the target opening of the throttling component. After obtaining the target opening, the opening of the throttling component can be adjusted according to the target opening, so that the opening of the throttling component can be increased to reduce the inlet temperature of the outdoor heat exchanger, improve the reliability of the operation of each component, and improve the cooling effect of the air conditioner.

[0045] According to one embodiment of the present invention, determining an inlet temperature threshold and an opening adjustment coefficient based on the outdoor ambient temperature includes: determining a temperature range in which the outdoor ambient temperature is located; determining an inlet temperature threshold and an opening adjustment coefficient based on the temperature range, wherein different temperature ranges correspond to different inlet temperature thresholds and opening adjustment coefficients.

[0046] Specifically, when determining the inlet temperature threshold and the opening adjustment coefficient according to the outdoor ambient temperature, first determine the temperature range in which the outdoor ambient temperature is located. For example, the temperature range can be divided into four, namely the first temperature range, the second temperature range, the third temperature range and the fourth temperature range. The temperature in the first temperature range can be 43 degrees to 48 degrees (greater than or equal to 43 degrees and less than 48 degrees), the temperature in the second temperature range can be 48 degrees to 53 degrees (greater than or equal to 48 degrees and less than 53 degrees), the temperature in the third temperature range can be 53 degrees to 58 degrees (greater than or equal to 53 degrees and less than 58 degrees), and the temperature in the fourth temperature range can be greater than or equal to 58 degrees.

[0047] After determining the temperature interval, the inlet temperature threshold and the opening adjustment coefficient can be determined according to the temperature interval, and different temperature intervals correspond to different inlet temperature thresholds and opening adjustment coefficients. For example, still taking the above-mentioned four temperature intervals as an example, when the outdoor ambient temperature obtained by the temperature sensor is 44 degrees, it can be determined that the outdoor ambient temperature is in the first temperature interval, and the first temperature interval can correspond to an inlet temperature threshold of 85 degrees and an opening adjustment coefficient of 10; when the outdoor ambient temperature obtained by the temperature sensor is 50 degrees, it can be determined that the outdoor ambient temperature is in the second temperature interval, and the second temperature interval can correspond to an inlet temperature threshold of 88 degrees and an opening adjustment coefficient of 12; when the outdoor ambient temperature obtained by the temperature sensor is 55 degrees, it can be determined that the outdoor ambient temperature is in the third temperature interval, and the third temperature interval can correspond to an inlet temperature threshold of 90 degrees and an opening adjustment coefficient of 14; when the outdoor ambient temperature obtained by the temperature sensor is 60 degrees, it can be determined that the outdoor ambient temperature is in the fourth temperature interval, and the fourth temperature interval can correspond to an inlet temperature threshold of 95 degrees and an opening adjustment coefficient of 16.

[0048] It should be noted that the above-mentioned division into four temperature intervals is taken as an example, and other numbers of temperature intervals can also be divided, such as five, six, seven or more, and when dividing the temperature intervals, it can be divided according to a fixed ratio, and it can also be divided according to a variable ratio. For example, the above-mentioned division is based on a fixed 5-degree interval. The first temperature interval can also be 43 degrees-48 degrees (greater than or equal to 43 degrees and less than 48 degrees), the second temperature interval can be 48 degrees-54 degrees (greater than or equal to 48 degrees and less than 54 degrees), the third temperature interval can be 54 degrees-61 degrees (greater than or equal to 54 degrees and less than 61 degrees), and the third temperature interval can be 61 degrees-69 degrees (greater than or equal to 61 degrees and less than 69 degrees), that is, the temperature intervals are divided in an incremental manner, and the interval endpoint values ​​during the above interval division can be adjusted according to actual conditions, and the opening adjustment coefficient and inlet temperature threshold corresponding to each interval can be set according to actual conditions.

[0049] According to one embodiment of the present invention, the speed of the outdoor fan is adjusted according to the outlet temperature and the outdoor ambient temperature, including: determining the outlet temperature threshold and the speed adjustment coefficient based on the outdoor ambient temperature; when the outlet temperature is greater than or equal to the outlet temperature threshold, adjusting the speed of the outdoor fan according to the second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient.

[0050] Specifically, when the speed of the outdoor fan is controlled according to the outlet temperature and the outdoor ambient temperature, the outlet temperature threshold and the speed adjustment coefficient can be first determined according to the outdoor ambient temperature. Different outdoor ambient temperatures can correspond to different outlet temperature thresholds and speed adjustment coefficients. For example, a pre-set table can be used to store the outdoor ambient temperature, the outlet temperature threshold and the speed adjustment coefficient, and the outdoor ambient temperature and the outlet temperature threshold and the speed adjustment coefficient are in a corresponding relationship. That is, when an outdoor ambient temperature is determined, the corresponding outlet temperature threshold and the speed adjustment coefficient can be determined.

[0051] After obtaining the outlet temperature threshold and the corresponding speed adjustment coefficient, the outlet temperature can be compared with the outlet temperature threshold. If the current outlet temperature is greater than or equal to the outlet temperature threshold, it means that the current outdoor heat exchanger outlet temperature is high. The speed of the outdoor fan can be adjusted according to the second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient. For example, the second temperature difference can be added to the speed adjustment coefficient, and the result can be added to the current speed of the outdoor fan, so that the speed of the outdoor fan can be adjusted to operate at a higher outdoor fan speed to improve the reliability of the operation of each component, ensure the heat dissipation effect of the electric control during high-temperature refrigeration operation, extend the service life of the electric control, reduce the limitations of the electric control under high-temperature refrigeration operation, and improve the refrigeration effect of the air conditioner. In addition, linear control of the outdoor fan speed can be achieved through the outdoor ambient temperature and the outlet temperature.

[0052] In addition, if the current outlet temperature is less than the outlet temperature threshold, it means that the current outlet temperature of the outdoor heat exchanger is not particularly high. After a period of time, the size relationship between the outlet temperature and the outlet temperature threshold can be determined again. For example, the size relationship between the outlet temperature and the outlet temperature threshold can be determined again after an interval of one hour. If the outlet temperature is greater than or equal to the outlet temperature threshold, the speed of the outdoor fan can be adjusted according to the second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient. In addition, after adjusting the speed of the outdoor fan, the outlet temperature of the outdoor heat exchanger decreases and is less than or equal to the outlet temperature threshold, and the adjustment of the speed of the outdoor fan can be stopped.

[0053] According to one embodiment of the present invention, the speed of the outdoor fan is adjusted according to the second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient, including: obtaining the product of the second temperature difference and the speed adjustment coefficient to obtain the speed adjustment amount; obtaining the sum of the current speed of the outdoor fan and the speed adjustment amount to obtain the target speed of the outdoor fan; and adjusting the speed of the outdoor fan according to the target speed.

[0054] Specifically, when adjusting the speed of the outdoor fan according to the second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient, the second temperature difference and the speed adjustment coefficient can be multiplied first to obtain the speed adjustment amount, and then the current speed of the outdoor fan is obtained, and the current speed and the speed adjustment amount are added to obtain the target speed of the outdoor fan. After obtaining the target speed, the speed of the outdoor fan can be adjusted according to the target speed, so that the speed of the outdoor fan can be increased to reduce the outlet temperature of the outdoor heat exchanger, improve the reliability of the operation of each component, and improve the cooling effect of the air conditioner.

[0055] According to one embodiment of the present invention, determining an outlet temperature threshold and a speed adjustment coefficient based on the outdoor ambient temperature includes: determining a temperature range in which the outdoor ambient temperature is located; determining an outlet temperature threshold and a speed adjustment coefficient based on the temperature range, wherein different temperature ranges correspond to different outlet temperature thresholds and speed adjustment coefficients.

[0056] Specifically, when determining the outlet temperature threshold and the speed adjustment coefficient based on the outdoor ambient temperature, first determine the temperature range in which the outdoor ambient temperature is located. For example, the temperature range can be divided into four, namely, the first temperature range, the second temperature range, the third temperature range and the fourth temperature range. The temperature in the first temperature range can be 43 degrees to 48 degrees (greater than or equal to 43 degrees and less than 48 degrees), the temperature in the second temperature range can be 48 degrees to 53 degrees (greater than or equal to 48 degrees and less than 53 degrees), the temperature in the third temperature range can be 53 degrees to 58 degrees (greater than or equal to 53 degrees and less than 58 degrees), and the temperature in the fourth temperature range can be greater than or equal to 58 degrees.

[0057] After determining the temperature interval, the outlet temperature threshold and the speed adjustment coefficient can be determined according to the temperature interval, and different temperature intervals correspond to different outlet temperature thresholds and speed adjustment coefficients. For example, still taking the above-mentioned division of four temperature intervals as an example, when the outdoor ambient temperature obtained by the temperature sensor is 45 degrees, it can be determined that the outdoor ambient temperature is in the first temperature interval, and the first temperature interval can correspond to an outlet temperature threshold of 50 degrees and a corresponding speed adjustment coefficient of 20; when the outdoor ambient temperature obtained by the temperature sensor is 52 degrees, it can be determined that the outdoor ambient temperature is in the second temperature interval, and the second temperature interval can correspond to an outlet temperature threshold of 53 degrees and a corresponding speed adjustment coefficient of 23; when the outdoor ambient temperature obtained by the temperature sensor is 57 degrees, it can be determined that the outdoor ambient temperature is in the third temperature interval, and the third temperature interval can correspond to an outlet temperature threshold of 55 degrees and a corresponding speed adjustment coefficient of 25; when the outdoor ambient temperature obtained by the temperature sensor is 70 degrees, it can be determined that the outdoor ambient temperature is in the fourth temperature interval, and the fourth temperature interval can correspond to an outlet temperature threshold of 58 degrees and a corresponding speed adjustment coefficient of 28.

[0058] It should be noted that the above-mentioned division into four temperature intervals is taken as an example, and other numbers of temperature intervals can also be divided, such as five, six, seven or more, and when dividing the temperature intervals, it can be divided according to a fixed ratio, and it can also be divided according to a variable ratio. For example, the above-mentioned division is based on a fixed 5-degree interval. The first temperature interval can also be 43 degrees-48 degrees (greater than or equal to 43 degrees and less than 48 degrees), the second temperature interval can be 48 degrees-54 degrees (greater than or equal to 48 degrees and less than 54 degrees), the third temperature interval can be 54 degrees-61 degrees (greater than or equal to 54 degrees and less than 61 degrees), and the third temperature interval can be 61 degrees-69 degrees (greater than or equal to 61 degrees and less than 69 degrees), that is, the temperature intervals are divided in an incremental manner, and the interval endpoint values ​​during the above interval division can be adjusted according to actual conditions, and the speed adjustment coefficient and outlet temperature threshold corresponding to each interval can be set according to actual conditions.

[0059] According to an embodiment of the present invention, the control method of the air conditioner further includes: when the outdoor ambient temperature is less than a preset ambient temperature threshold, adjusting the opening of the throttling component and the rotation speed of the outdoor fan according to the frequency of the compressor.

[0060] Specifically, the outdoor ambient temperature is compared with the preset ambient temperature threshold. If the outdoor ambient temperature is lower than the preset ambient temperature threshold, for example, the current outdoor ambient temperature is 28 degrees and the preset ambient temperature threshold is 40 degrees, it means that the current outdoor ambient temperature is not particularly high. Without considering the problems of the inability of the electronic control to dissipate heat and the excessive pressure of the compressor, a larger cooling capacity is not required. The compressor can be operated at a lower frequency, and the opening of the throttling component and the speed of the outdoor fan can be adjusted according to the current operating frequency of the compressor. When the compressor runs at a lower frequency, the opening of the throttling component and the speed of the outdoor fan can be adjusted lower to reduce energy consumption, and a certain cooling capacity can still be maintained to improve user comfort.

[0061] In addition, when the outdoor ambient temperature is lower than the preset ambient temperature threshold, the outdoor ambient temperature can be detected again after a period of time, such as one hour, to determine whether the current outdoor ambient temperature has changed. If the outdoor ambient temperature rises and is higher than the preset ambient temperature threshold, the opening of the throttling component can be adjusted according to the inlet temperature and the outdoor ambient temperature, and the speed of the outdoor fan can be adjusted according to the outlet temperature and the outdoor ambient temperature in the above manner. If it is still not higher than the preset ambient temperature threshold, the opening of the throttling component and the speed of the outdoor fan can continue to be adjusted according to the frequency of the compressor.

[0062] Combine the following Figure 2 The control method of the present invention will be described.

[0063] As a specific example, the control method of the air conditioner may include the following steps:

[0064] S101, the air conditioner operates in cooling mode.

[0065] S102, obtaining the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger, and the outlet temperature of the outdoor heat exchanger.

[0066] S103, determining whether the outdoor ambient temperature is greater than or equal to a preset ambient temperature threshold. If yes, executing step S104; if no, executing step S101.

[0067] S104, determining the temperature range of the outdoor ambient temperature.

[0068] S105, determining the inlet temperature threshold, the opening temperature threshold, the opening adjustment coefficient and the speed adjustment coefficient based on the temperature range, and proceeding to step S106 and step S110.

[0069] S106, determine whether the inlet temperature is greater than or equal to the inlet temperature threshold. If yes, execute step S107; if not, execute step S101.

[0070] S107, obtaining the product of the first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient to obtain the opening adjustment amount.

[0071] S108, obtaining the sum of the current opening of the throttling component and the opening adjustment amount, and obtaining the target opening of the throttling component.

[0072] S109, adjusting the opening of the throttling component according to the target opening.

[0073] S110, determining whether the outlet temperature is greater than or equal to the outlet temperature threshold. If yes, executing step S111; if no, executing step S101.

[0074] S111, obtaining the product of a second temperature difference between the outlet temperature and the outlet temperature threshold and a speed adjustment coefficient to obtain a speed adjustment amount.

[0075] S112, obtaining the sum of the current rotation speed of the outdoor fan and the rotation speed adjustment amount to obtain the target rotation speed of the outdoor fan.

[0076] S113, adjusting the speed of the outdoor fan according to the target speed.

[0077] In summary, according to the control method of the air conditioner of the embodiment of the present invention, when the air conditioner is running in cooling mode, the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger and the outlet temperature of the outdoor heat exchanger are obtained; when the outdoor ambient temperature is greater than or equal to the preset ambient temperature threshold, the opening of the throttling component is adjusted according to the inlet temperature and the outdoor ambient temperature, and / or the speed of the outdoor fan is adjusted according to the outlet temperature and the outdoor ambient temperature. Therefore, the method can protect the compressor and extend the service life of the compressor when the outdoor ambient temperature is too high, and improve the heat dissipation effect of the electronic control and extend the service life of the electronic control.

[0078] Corresponding to the above embodiment, the present invention further proposes a control device for an air conditioner.

[0079] like Figure 3 As shown, the air conditioner control device 100 according to the embodiment of the present invention includes: an acquisition module 110 and a control module 120 .

[0080] Among them, the acquisition module 110 is used to obtain the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger and the outlet temperature of the outdoor heat exchanger when the air conditioner is operating in cooling mode; the control module 120 is used to adjust the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature when the outdoor ambient temperature is greater than or equal to the preset ambient temperature threshold, and / or, adjust the speed of the outdoor fan according to the outlet temperature and the outdoor ambient temperature.

[0081] According to one embodiment of the present invention, the control module 120 controls the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature, and is specifically used to: determine the inlet temperature threshold and the opening adjustment coefficient based on the outdoor ambient temperature; when the inlet temperature is greater than or equal to the inlet temperature threshold, adjust the opening of the throttling component according to the first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient.

[0082] According to one embodiment of the present invention, the control module 120 adjusts the opening of the throttling component according to the first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient, and is specifically used to: obtain the product of the first temperature difference and the opening adjustment coefficient to obtain the opening adjustment amount; obtain the sum of the current opening of the throttling component and the opening adjustment amount to obtain the target opening of the throttling component; and adjust the opening of the throttling component according to the target opening.

[0083] According to one embodiment of the present invention, the control module 120 determines the inlet temperature threshold and the opening adjustment coefficient based on the outdoor ambient temperature, and is specifically used to: determine the temperature range in which the outdoor ambient temperature is located; determine the inlet temperature threshold and the opening adjustment coefficient based on the temperature range, wherein different temperature ranges correspond to different inlet temperature thresholds and opening adjustment coefficients.

[0084] According to one embodiment of the present invention, the control module 120 adjusts the speed of the outdoor fan according to the outlet temperature and the outdoor ambient temperature, and is specifically used to: determine the outlet temperature threshold and the speed adjustment coefficient based on the outdoor ambient temperature; when the outlet temperature is greater than or equal to the outlet temperature threshold, adjust the speed of the outdoor fan according to the second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient.

[0085] According to one embodiment of the present invention, the control module 120 adjusts the speed of the outdoor fan according to the second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient, and is specifically used to: obtain the product of the second temperature difference and the speed adjustment coefficient to obtain the speed adjustment amount; obtain the sum of the current speed of the outdoor fan and the speed adjustment amount to obtain the target speed of the outdoor fan; and adjust the speed of the outdoor fan according to the target speed.

[0086] According to one embodiment of the present invention, the control module 120 determines the outlet temperature threshold and the speed adjustment coefficient based on the outdoor ambient temperature, and is specifically used to: determine the temperature range in which the outdoor ambient temperature is located; determine the outlet temperature threshold and the speed adjustment coefficient based on the temperature range, wherein different temperature ranges correspond to different outlet temperature thresholds and speed adjustment coefficients.

[0087] According to an embodiment of the present invention, the control module 120 is further configured to adjust the opening of the throttling component and the rotation speed of the outdoor fan according to the frequency of the compressor when the outdoor ambient temperature is lower than a preset ambient temperature threshold.

[0088] It should be noted that for details not disclosed in the control device of the air conditioner in the embodiment of the present invention, please refer to the details disclosed in the control method of the air conditioner in the embodiment of the present invention, and the details will not be repeated here.

[0089] According to the control device of the air conditioner of the embodiment of the present invention, the acquisition module is used to acquire the outdoor ambient temperature, the inlet temperature of the outdoor heat exchanger and the outlet temperature of the outdoor heat exchanger when the air conditioner is running in the cooling mode, and the control module is used to adjust the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature when the outdoor ambient temperature is greater than or equal to the preset ambient temperature threshold, and / or adjust the speed of the outdoor fan according to the outlet temperature and the outdoor ambient temperature. Thus, the device can protect the compressor and extend the service life of the compressor when the outdoor ambient temperature is too high, and improve the heat dissipation effect of the electronic control and extend the service life of the electronic control.

[0090] Corresponding to the above embodiment, the present invention also proposes an air conditioner.

[0091] like Figure 4 As shown, the air conditioner 200 of the embodiment of the present invention may include: a memory 210, a processor 220, and a program stored in the memory 210 and executable on the processor 220. When the processor 220 executes the program, the above-mentioned air conditioner control method is implemented.

[0092] The air conditioner according to the embodiment of the present invention can protect the compressor and extend the service life of the compressor when the outdoor ambient temperature is too high by executing the above-mentioned air conditioner control method, and can also improve the heat dissipation effect of the electronic control and extend the service life of the electronic control.

[0093] Corresponding to the above embodiment, the present invention also proposes a computer-readable storage medium.

[0094] The computer-readable storage medium of the embodiment of the present invention stores a program, and when the program is executed by a processor, the above-mentioned air conditioner control method is implemented.

[0095] According to the computer-readable storage medium of an embodiment of the present invention, by executing the above-mentioned air conditioner control method, it is possible to protect the compressor and extend the service life of the compressor when the outdoor ambient temperature is too high, and to improve the heat dissipation effect of the electronic control and extend the service life of the electronic control.

[0096] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced 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, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0097] 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-mentioned embodiments, a plurality of 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, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0098] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0099] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0100] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0101] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: The method comprises: When the air conditioner is operated in a cooling mode, obtaining an outdoor ambient temperature, an inlet temperature of an outdoor heat exchanger, and an outlet temperature of an outdoor heat exchanger; When the outdoor ambient temperature is greater than or equal to a preset ambient temperature threshold, the opening of the throttling component is adjusted according to the inlet temperature and the outdoor ambient temperature, and / or the speed of the outdoor fan is adjusted according to the outlet temperature and the outdoor ambient temperature.

2. The method according to claim 1, characterized in that The controlling the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature comprises: Determining an inlet temperature threshold and an opening adjustment coefficient based on the outdoor ambient temperature; When the inlet temperature is greater than or equal to the inlet temperature threshold, the opening of the throttling component is adjusted according to a first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient.

3. The method according to claim 2, characterized in that The adjusting the opening of the throttling component according to the first temperature difference between the inlet temperature and the inlet temperature threshold and the opening adjustment coefficient includes: Obtaining the product of the first temperature difference and the opening adjustment coefficient to obtain an opening adjustment amount; Obtaining the sum of the current opening of the throttling component and the opening adjustment amount to obtain the target opening of the throttling component; The opening of the throttling component is adjusted according to the target opening.

4. The method according to claim 2, characterized in that: The determining of the inlet temperature threshold and the opening adjustment coefficient based on the outdoor ambient temperature includes: Determining the temperature range of the outdoor ambient temperature; The inlet temperature threshold and the opening adjustment coefficient are determined based on the temperature interval, wherein different temperature intervals correspond to different inlet temperature thresholds and opening adjustment coefficients.

5. The method according to claim 1, characterized in that The adjusting the rotation speed of the outdoor fan according to the outlet temperature and the outdoor ambient temperature includes: Determining an outlet temperature threshold and a speed adjustment coefficient based on the outdoor ambient temperature; When the outlet temperature is greater than or equal to the outlet temperature threshold, the speed of the outdoor fan is adjusted according to a second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient.

6. The method according to claim 5, characterized in that The adjusting the speed of the outdoor fan according to the second temperature difference between the outlet temperature and the outlet temperature threshold and the speed adjustment coefficient includes: Obtaining the product of the second temperature difference and the speed adjustment coefficient to obtain a speed adjustment amount; Obtaining the sum of the current speed of the outdoor fan and the speed adjustment amount to obtain the target speed of the outdoor fan; The rotation speed of the outdoor fan is adjusted according to the target rotation speed.

7. The method according to claim 5, characterized in that The determining of the outlet temperature threshold and the speed adjustment coefficient based on the outdoor ambient temperature includes: Determining the temperature range of the outdoor ambient temperature; The outlet temperature threshold and the speed adjustment coefficient are determined based on the temperature interval, wherein different temperature intervals correspond to different outlet temperature thresholds and speed adjustment coefficients.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: When the outdoor ambient temperature is lower than the preset ambient temperature threshold, the opening of the throttling component and the rotation speed of the outdoor fan are adjusted according to the frequency of the compressor.

9. A control device for an air conditioner, characterized in that: include: an acquisition module, for acquiring an outdoor ambient temperature, an inlet temperature of an outdoor heat exchanger, and an outlet temperature of an outdoor heat exchanger when the air conditioner is operated in a cooling mode; A control module is used to adjust the opening of the throttling component according to the inlet temperature and the outdoor ambient temperature when the outdoor ambient temperature is greater than or equal to a preset ambient temperature threshold, and / or to adjust the speed of the outdoor fan according to the outlet temperature and the outdoor ambient temperature.

10. An air conditioner, characterized in that: The air conditioner comprises: a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the control method of the air conditioner according to any one of claims 1 to 8 is implemented.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed, the air conditioner control method according to any one of claims 1 to 8 is implemented.

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