Operation control method for air conditioner, control device, and computer-readable storage medium

Abstract

The present application discloses an operation control method for an air conditioner. The method comprises: in a heating mode, obtaining the operation frequency of a compressor, an indoor ambient temperature, and a set room temperature value (S310); and when the operation frequency of the compressor is a minimum operation frequency, and the difference obtained by subtracting the set room temperature value from the indoor ambient temperature is greater than or equal to a first preset value, controlling the opening degree of a throttling device to increase to a first opening degree (S320), wherein the first preset value is greater than zero, and the sum of the set room temperature value and the first preset value is less than a heating shutdown temperature.

Description

Air conditioner operation control method, control device and computer-readable storage medium

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411027637.X, filed on July 29, 2024, entitled "Operation Control Method, Control Device and Computer-Readable Storage Medium for Air Conditioner", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of air conditioning technology, and in particular to an air conditioner operation control method, an air conditioner, an operation control device, and a computer-readable storage medium. Background Technology

[0004] Currently, in existing air conditioners, if the compressor operates at too low a frequency in heating mode, it can lead to problems such as compressor fin noise, oil return issues, and excessive stress. Therefore, the minimum operating frequency of the compressor in heating mode is generally set relatively high, for example, exceeding 20Hz. Furthermore, the opening degree of the electronic expansion valve in an air conditioner is generally proportional to the compressor's operating frequency; that is, the lower the compressor's operating frequency, the smaller the opening degree of the electronic expansion valve. Therefore, the minimum heating capacity of the air conditioner is relatively high. When the room area is small or the temperature setting is high, the heating demand is low, which can easily lead to frequent temperature-reaching shutdowns and frequent indoor temperature fluctuations, affecting the user experience and hindering precise temperature control.

[0005] Summary of the Invention

[0006] The purpose of this application is to at least solve one of the technical problems existing in the prior art, and to provide an air conditioner operation control method, an air conditioner, an operation control device, and a computer-readable storage medium.

[0007] In a first aspect, embodiments of this application provide an operation control method for an air conditioner, the air conditioner including a compressor, an indoor heat exchanger and an outdoor heat exchanger connected to the compressor, and a throttling device connected between the indoor heat exchanger and the outdoor heat exchanger, the method including:

[0008] In heating mode, the compressor operating frequency, indoor ambient temperature, and room temperature setpoint are obtained; and

[0009] When the compressor operates at its lowest operating frequency, and the difference between the indoor ambient temperature and the room temperature setpoint is greater than or equal to a first preset value, the opening degree of the throttling device is increased to the first opening degree.

[0010] Wherein, the first preset value is greater than zero, and the sum of the room temperature setting value and the first preset value is less than the heating shutdown temperature.

[0011] According to some embodiments of the present application, the first opening degree is the sum of the second opening degree and the preset opening degree adjustment value, and the second opening degree is the opening degree of the throttling device corresponding to the lowest operating frequency.

[0012] According to some embodiments of the present application, after the opening degree of the throttling device is increased to the first opening degree, the method further includes: re-acquiring the indoor ambient temperature every first preset time interval; and when the difference between the indoor ambient temperature and the room temperature setting value is still greater than or equal to the first preset value, controlling the opening degree of the throttling device to increase the preset opening degree adjustment value.

[0013] According to the operation control method provided in some embodiments of this application, when the difference between the indoor ambient temperature and the room temperature set value is less than the first preset value and greater than the second preset value, the opening degree of the throttling device is controlled to remain unchanged, and the second preset value is less than the first preset value.

[0014] Secondly, embodiments of this application provide an air conditioner, including a compressor, an indoor heat exchanger and an outdoor heat exchanger connected to the compressor, a throttling device connected between the indoor heat exchanger and the outdoor heat exchanger, and an operation control device electrically connected to the throttling device, wherein the operation control device is used for:

[0015] In heating mode, the compressor operating frequency, indoor ambient temperature, and room temperature setpoint are obtained; and

[0016] When the compressor operates at its lowest operating frequency, and the difference between the indoor ambient temperature and the room temperature setpoint is greater than or equal to a first preset value, the opening degree of the throttling device is increased to the first opening degree.

[0017] Wherein, the first preset value is greater than zero, and the sum of the room temperature setting value and the first preset value is less than the heating shutdown temperature.

[0018] According to some embodiments of the present application, the first opening degree is the sum of the second opening degree and the preset opening degree adjustment value, and the second opening degree is the opening degree of the throttling device corresponding to the lowest operating frequency.

[0019] According to some embodiments of the present application, the air conditioner provided by the operation control device is further configured to: reacquire the indoor ambient temperature every first preset time interval; and when the difference between the indoor ambient temperature and the room temperature set value is still greater than or equal to the first preset value, control the opening degree of the throttling device to increase the preset opening degree adjustment value.

[0020] According to some embodiments of the present application, the air conditioner provided by the operation control device is further configured to: control the opening degree of the throttling device to remain unchanged when the difference between the indoor ambient temperature and the room temperature set value is less than the first preset value and greater than the second preset value, wherein the second preset value is less than the first preset value.

[0021] According to some embodiments of the present application, the throttling device in the air conditioner is an electronic expansion valve.

[0022] Thirdly, embodiments of this application provide an operation control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the program to implement the operation control method for an air conditioner as described in the first aspect embodiment above.

[0023] Fourthly, embodiments of this application provide an air conditioner, including the operation control device described in the third aspect of the embodiments above.

[0024] Fifthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the air conditioner operation control method described in the first aspect embodiment above.

[0025] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0026] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0027] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0028] Figure 1 is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application;

[0029] Figure 2 is a schematic diagram of another air conditioner provided in an embodiment of this application;

[0030] Figure 3 is a schematic diagram of the operation control method of an air conditioner provided in an embodiment of this application;

[0031] Figure 4 is a schematic diagram of another refrigerant leakage detection method for an air conditioner provided in an embodiment of this application; and

[0032] Figure 5 is a schematic diagram of the structure of the operating device provided in an embodiment of this application. Detailed Implementation

[0033] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0034] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0035] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0036] Currently, in existing air conditioners, if the compressor operates at too low a frequency in heating mode, it can lead to problems such as compressor fin noise, oil return issues, and excessive stress. Therefore, the minimum operating frequency of the compressor in heating mode is generally set relatively high, for example, exceeding 20Hz. Furthermore, the opening degree of the electronic expansion valve in an air conditioner is generally proportional to the compressor's operating frequency; that is, the lower the compressor's operating frequency, the smaller the opening degree of the electronic expansion valve. Therefore, the minimum heating capacity of the air conditioner is relatively high. When the room area is small or the temperature setting is high, the heating demand is low, which can easily lead to frequent temperature-reaching shutdowns and frequent indoor temperature fluctuations, affecting the user experience and hindering precise temperature control.

[0037] Based on this, embodiments of this application provide an air conditioner operation control method, an air conditioner, an operation control device, and a computer-readable storage medium, which can avoid frequent shutdowns, improve the stability of indoor temperature, and enhance the user experience.

[0038] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0039] Referring to Figure 1, which is a structural schematic diagram of an air conditioner provided in an embodiment of this application.

[0040] It is understood that the air conditioner includes a compressor 110, an indoor heat exchanger 140 and an outdoor heat exchanger 130 connected to the compressor 110, and a throttling device 120 connected between the indoor heat exchanger 140 and the outdoor heat exchanger 130.

[0041] Referring to Figure 2, which is a schematic diagram of another air conditioner provided in an embodiment of this application.

[0042] It should be noted that the air conditioner also includes a four-way valve 150, a hot gas bypass pipe 240, a flash evaporator 220, a capillary tube 210, and a single-way solenoid valve 230. The four-way valve 150 is connected to the air inlet and outlet of the compressor 110, the indoor heat exchanger 140, and the outdoor heat exchanger 130, respectively. The first refrigerant port of the flash evaporator 220 is connected to one end of the capillary tube 210, and the other end of the capillary tube 210 is connected to the outdoor heat exchanger 130. The air outlet of the flash evaporator 220 is connected to one end of the single-way solenoid valve 230, and the other end of the single-way solenoid valve 230 is connected to the air supply port of the compressor 110. The second refrigerant port of the flash evaporator 220 is connected to one end of the throttling device 120, and the other end of the throttling device 120 is connected to one end of the hot gas bypass pipe 240. The other end of the hot gas bypass pipe 240 is connected to the indoor heat exchanger 140.

[0043] It should be noted that in low-temperature environments, the condensate formed after defrosting the surface of the outdoor heat exchanger 130 can easily condense into ice at the bottom of the outdoor heat exchanger 130, thus affecting the heat exchange efficiency of the outdoor heat exchanger 130. Therefore, the defrosting operation at the bottom of the outdoor heat exchanger 130 can be achieved by adjusting the heat supply of the hot gas bypass pipe 240.

[0044] It should be noted that the flash evaporator 220 can separate gaseous refrigerant and liquid refrigerant. The gaseous refrigerant is delivered to the gas supply port through the gas outlet, while the liquid refrigerant flows out from the first refrigerant port to continue the refrigerant circulation.

[0045] Referring to Figure 3, a first aspect of this application provides an operation control method for an air conditioner, the method comprising steps S310-S320:

[0046] Step S310: In heating mode, obtain the compressor 110 operating frequency, indoor ambient temperature T1, and room temperature setpoint Ts;

[0047] Step S320: When the compressor 110 operates at the lowest operating frequency, and the difference between the indoor ambient temperature T1 and the room temperature set value Ts is greater than or equal to the first preset value, the opening degree of the throttling device 120 is increased to the first opening degree.

[0048] It should be noted that the first preset value is greater than zero, and the sum of the room temperature setting value Ts and the first preset value is less than the heating shutdown temperature.

[0049] According to the air conditioner operation control method provided in the embodiments of this application, in heating mode, the compressor 110 operating frequency, indoor ambient temperature T1, and room temperature setpoint Ts are obtained. When the compressor 110 operating frequency is the lowest operating frequency, and the difference between the indoor ambient temperature T1 and the room temperature setpoint Ts is greater than or equal to a first preset value, the indoor ambient temperature T1 is close to the heating shutdown temperature. Then, the opening degree of the throttling device 120 is adjusted. Specifically, when the indoor ambient temperature T1 is close to the heating shutdown temperature, the opening degree of the throttling device 120 is increased to the first opening degree to reduce the minimum heating capacity, meet the needs of a smaller room load, avoid the phenomenon of the air conditioner repeatedly stopping when the heating shutdown temperature is reached, improve the user experience, and achieve precise temperature control.

[0050] It should be noted that, since the opening of the throttling device 120 is adjusted while the operating frequency of the compressor 110 remains unchanged, the operating power can be kept stable and power fluctuations can be avoided.

[0051] It should be noted that since the opening degree of the electronic expansion valve in the air conditioner is generally proportional to the operating frequency of the compressor 110, when the operating frequency of the compressor 110 is the lowest operating frequency, the opening degree of the corresponding throttling device 120 is the smallest. The throttling device 120 has a large opening degree adjustment margin. By increasing the opening degree of the throttling device 120, the heating capacity is reduced accordingly, and the indoor ambient temperature T1 can be maintained within a stable temperature range, achieving the effect of not stopping the machine, while avoiding problems such as sliding noise and oil return.

[0052] Preferably, the first preset value is 1°C, and the first preset value can be adjusted appropriately according to actual performance requirements.

[0053] Preferably, the room temperature setting value Ts is 25°C, and the room temperature setting value Ts can be adjusted appropriately according to actual performance requirements.

[0054] Preferably, the heating shutdown temperature is 27°C or 28°C, and the heating shutdown temperature can be appropriately adjusted within the range of 27-28°C.

[0055] Understandably, when the first preset value is 1℃, the room temperature set value Ts is 25℃, and the heating stop temperature is 28℃, if the difference between the indoor ambient temperature T1 and 25℃ is greater than or equal to 1℃, and the indoor ambient temperature T1 is greater than or equal to 26℃, which is close to the heating stop temperature of 28℃, the opening degree of the throttling device 120 is increased to the first opening degree to reduce the minimum heating capacity, thereby lowering the indoor ambient temperature T1. This avoids the phenomenon of the air conditioner repeatedly stopping when the heating stop temperature is reached, improving the user experience and achieving precise temperature control.

[0056] According to the operation control method provided in some embodiments of this application, the first opening degree is the sum of the second opening degree and the preset opening degree adjustment value, and the second opening degree is the opening degree of the throttling device 120 corresponding to the lowest operating frequency.

[0057] Understandably, by setting a preset opening adjustment value and gradually increasing the first opening based on the second opening, the opening of the throttling device 120 can be controlled more precisely, so that the indoor ambient temperature T1 is maintained within a relatively stable range. At the same time, it avoids a sharp drop in heating capacity due to an excessive increase in the opening of the throttling device 120, which would affect the heating effect and reduce the user experience.

[0058] Referring to Figure 4, according to some embodiments of the operation control method provided in this application, after the opening degree of the throttling device 120 is increased to the first opening degree in step S320, the method further includes steps S330-S340:

[0059] Step S330: Reacquire the indoor ambient temperature T1 every first preset time interval;

[0060] Step S340: When the difference between the indoor ambient temperature T1 and the room temperature set value Ts is still greater than or equal to the first preset value, the opening degree of the throttling device 120 is increased by the preset opening degree adjustment value.

[0061] Preferably, the first preset duration is 60 seconds, and the first preset duration can be adjusted appropriately according to actual performance requirements.

[0062] Preferably, the preset opening adjustment value is 30 steps or 50 steps, and the preset opening adjustment value can be adjusted appropriately according to the actual performance requirements.

[0063] It should be noted that the indoor ambient temperature T1 is re-acquired every 60 seconds. If the difference between the indoor ambient temperature T1 and the room temperature setpoint Ts is still greater than or equal to the first preset value, it indicates that the heating capacity reduced by the previous opening adjustment was insufficient. It is necessary to further control the opening of the throttling device 120, for example, by increasing it by 30 or 50 steps, to continuously reduce the minimum heating capacity, so that the indoor ambient temperature T1 can drop further. This achieves precise adjustment while preventing the indoor ambient temperature T1 from dropping sharply due to a sudden large adjustment of the opening of the throttling device 120, which would affect the heating effect of the air conditioner and reduce the user experience.

[0064] Referring to Figure 4, the operation control method provided according to some embodiments of this application further includes step S350: when the difference between the indoor ambient temperature T1 and the room temperature set value Ts is less than a first preset value and greater than a second preset value, the opening degree of the throttling device 120 is kept unchanged, and the second preset value is less than the first preset value.

[0065] Preferably, the first preset value is 1°C, and the first preset value can be adjusted appropriately according to actual performance requirements.

[0066] Preferably, the second preset value is -1℃, and the second preset value can be adjusted appropriately according to actual performance requirements.

[0067] It is understandable that if the first preset value is 1℃ and the second preset value is -1℃, when the difference between the indoor ambient temperature T1 and the room temperature setting value Ts is less than 1℃ and greater than -1℃, and if the room temperature setting value Ts is 25℃, that is, when the indoor ambient temperature T1 is in the range of 24 to 26 degrees Celsius, the opening of the throttling device 120 remains unchanged.

[0068] It should be noted that, under the premise of re-acquiring the indoor ambient temperature T1, if the difference between the indoor ambient temperature T1 and the room temperature set value Ts is less than the first preset value and greater than the second preset value, it indicates that the indoor ambient temperature T1 is relatively stable, will not reach the heating shutdown temperature and will not affect the heating effect of the air conditioner. Therefore, it is not necessary to continue to adjust the opening degree of the throttling device 120.

[0069] According to some embodiments of the present application, after the opening degree of the throttling device 120 is increased to a first opening degree, the method further includes:

[0070] Every first preset time interval, while reacquiring the indoor ambient temperature T1, it is also checked whether the first preset conversion control condition has been triggered.

[0071] When the first preset switching control condition is detected, the opening control process of the throttling device 120 ends, and the original heating operation process of the air conditioner is switched to be executed.

[0072] It should be noted that the first preset conversion control condition can be any one of the following: the operating mode is non-heating mode; or, the operating frequency of compressor 110 is greater than the minimum operating frequency; or, the difference between the detected indoor ambient temperature T1 and the room temperature set value Ts is less than the second preset value.

[0073] Preferably, the second preset value is -1℃, and the second preset value can be adjusted appropriately according to actual performance requirements.

[0074] Secondly, embodiments of this application provide an air conditioner, including a compressor 110, an indoor heat exchanger 140 and an outdoor heat exchanger 130 connected to the compressor 110, a throttling device 120 connected between the indoor heat exchanger 140 and the outdoor heat exchanger 130, and an operation control device 400 electrically connected to the throttling device 120. The operation control device 400 is used for:

[0075] First, in heating mode, the compressor 110 operating frequency, indoor ambient temperature T1, and room temperature setpoint Ts are obtained;

[0076] Secondly, when the compressor 110 operates at the lowest operating frequency, and the difference between the indoor ambient temperature T1 and the room temperature set value Ts is greater than or equal to the first preset value, the opening degree of the throttling device 120 is increased to the first opening degree.

[0077] It should be noted that the first preset value is greater than zero, and the sum of the room temperature setting value Ts and the first preset value is less than the heating shutdown temperature.

[0078] According to the embodiments of this application, the air conditioner, through the operation control device 400 electrically connected to the throttling device 120, can obtain the compressor 110 operating frequency, indoor ambient temperature T1, and room temperature setpoint Ts in heating mode. When the compressor 110 operating frequency is the lowest operating frequency, and the difference between the indoor ambient temperature T1 and the room temperature setpoint Ts is greater than or equal to a first preset value, the indoor ambient temperature T1 is close to the heating shutdown temperature. Then, the opening degree of the throttling device 120 is adjusted. Specifically, when the indoor ambient temperature T1 is close to the heating shutdown temperature, the opening degree of the throttling device 120 is increased to the first opening degree to reduce the minimum heating capacity, meet the needs of a smaller room load, avoid the phenomenon of the air conditioner repeatedly stopping when the heating shutdown temperature is reached, improve the user experience, and achieve precise temperature control.

[0079] Preferably, the first preset value is 1°C, and the first preset value can be adjusted appropriately according to actual performance requirements.

[0080] Preferably, the room temperature setting value Ts is 25°C, and the room temperature setting value Ts can be adjusted appropriately according to actual performance requirements.

[0081] Preferably, the heating shutdown temperature is 27°C or 28°C, and the heating shutdown temperature can be appropriately adjusted within the range of 27-28°C.

[0082] Understandably, when the first preset value is 1℃, the room temperature set value Ts is 25℃, and the heating stop temperature is 28℃, if the difference between the indoor ambient temperature T1 and 25℃ is greater than or equal to 1℃, and the indoor ambient temperature T1 is greater than or equal to 26℃, which is close to the heating stop temperature of 28℃, the operation control device 400 controls the opening of the throttling device 120 to increase to the first opening degree to reduce the minimum heating capacity, thereby lowering the indoor ambient temperature T1. This avoids the phenomenon of the air conditioner repeatedly stopping when the heating stop temperature is reached, improving the user experience and achieving precise temperature control.

[0083] According to some embodiments of the present application, the first opening degree is the sum of the second opening degree and the preset opening degree adjustment value, and the second opening degree is the opening degree of the throttling device 120 corresponding to the lowest operating frequency.

[0084] Understandably, by setting a preset opening adjustment value and gradually increasing the first opening based on the second opening, the opening of the throttling device 120 can be controlled more precisely, so that the indoor ambient temperature T1 is maintained within a relatively stable range. At the same time, it avoids a sharp drop in heating capacity due to an excessive increase in the opening of the throttling device 120, which would affect the heating effect and reduce the user experience.

[0085] According to some embodiments of the present application, the air conditioner operation control device 400 is further configured to: firstly, reacquire the indoor ambient temperature T1 every first preset time interval; secondly, when the difference between the indoor ambient temperature T1 and the room temperature set value Ts is still greater than or equal to the first preset value, control the opening degree of the throttling device 120 to increase the preset opening degree adjustment value.

[0086] Preferably, the first preset duration is 60 seconds, and the first preset duration can be adjusted appropriately according to actual performance requirements.

[0087] Preferably, the preset opening adjustment value is 30 steps or 50 steps, and the preset opening adjustment value can be adjusted appropriately according to the actual performance requirements.

[0088] According to some embodiments of the present application, the air conditioner operation control device 400 is further configured to: when the difference between the indoor ambient temperature T1 and the room temperature set value Ts is less than a first preset value and greater than a second preset value, control the opening degree of the throttling device 120 to remain unchanged, and the second preset value is less than the first preset value.

[0089] It should be noted that the indoor ambient temperature T1 is re-acquired every 60 seconds. If the difference between the indoor ambient temperature T1 and the room temperature setpoint Ts is still greater than or equal to the first preset value, it indicates that the heating capacity reduced by the previous opening adjustment was insufficient. It is necessary to further control the opening of the throttling device 120, for example, by increasing it by 30 or 50 steps, to continuously reduce the minimum heating capacity, so that the indoor ambient temperature T1 can drop further. This achieves precise adjustment while preventing the indoor ambient temperature T1 from dropping sharply due to a sudden large adjustment of the opening of the throttling device 120, which would affect the heating effect of the air conditioner and reduce the user experience.

[0090] According to some embodiments of the present application, the throttling device 120 of the air conditioner is an electronic expansion valve.

[0091] Referring to FIG5, in a third aspect, an embodiment of this application provides an operation control device 400, including a memory 410, a processor 420, and a computer program stored in the memory 410 and executable on the processor 420. The processor 420 executes the program to implement the operation control method of the air conditioner as described in the first aspect embodiment above.

[0092] Fourthly, embodiments of this application provide an air conditioner including the operation control device 400 as described in the third aspect embodiment above.

[0093] Fifthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the air conditioner operation control method of the first aspect embodiment described above.

[0094] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0095] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A method for controlling operation of an air conditioner, wherein, The air conditioner comprises a compressor, an indoor heat exchanger and an outdoor heat exchanger connected with the compressor, a throttling device connected between the indoor heat exchanger and the outdoor heat exchanger, and the method comprises: In the heating mode, the compressor operating frequency, the indoor environment temperature and the room temperature set value are obtained; and When the compressor operating frequency is the lowest operating frequency, and the difference between the indoor environment temperature and the room temperature set value is greater than or equal to a first preset value, the opening degree of the throttling device is increased to a first opening degree. The first preset value is greater than zero, and the sum of the room temperature set value and the first preset value is less than the heating shutdown temperature.

2. The operation control method according to claim 1, wherein The first opening degree is the sum of a second opening degree and a preset opening degree adjustment value, and the second opening degree is the opening degree of the throttling device corresponding to the lowest operating frequency.

3. The operation control method according to claim 2, wherein After the opening degree of the throttling device is increased to the first opening degree, the method further comprises: Every first preset time length, the indoor environment temperature is re-obtained; and When the difference between the indoor environment temperature and the room temperature set value is still greater than or equal to the first preset value, the opening degree of the throttling device is increased by the preset opening degree adjustment value.

4. The operation control method according to claim 1 or 3, wherein When the difference between the indoor environment temperature and the room temperature set value is less than the first preset value and greater than a second preset value, the opening degree of the throttling device is kept unchanged, and the second preset value is less than the first preset value.

5. An air conditioner comprising a compressor, an indoor heat exchanger and an outdoor heat exchanger connected with the compressor, a throttling device connected between the indoor heat exchanger and the outdoor heat exchanger, and an operating control device electrically connected with the throttling device, the operating control device being used for: In the heating mode, the compressor operating frequency, the indoor environment temperature and the room temperature set value are obtained; and When the compressor operating frequency is the lowest operating frequency, and the difference between the indoor environment temperature and the room temperature set value is greater than or equal to a first preset value, the opening degree of the throttling device is increased to a first opening degree. wherein The first preset value is greater than zero, and the sum of the room temperature set value and the first preset value is less than the heating shutdown temperature.

6. The air conditioner of claim 5, wherein, The first opening degree is the sum of a second opening degree and a preset opening degree adjustment value, and the second opening degree is the opening degree of the throttling device corresponding to the lowest operating frequency.

7. The air conditioner of claim 6, wherein, The operating control device is further used for: Every first preset time length, the indoor environment temperature is re-obtained; and When the difference between the indoor environment temperature and the room temperature set value is still greater than or equal to the first preset value, the opening degree of the throttling device is increased by the preset opening degree adjustment value.

8. The air conditioner according to claim 5 or 7, wherein The operating control device is further used for: When the difference between the indoor environment temperature and the room temperature set value is less than the first preset value and greater than a second preset value, the opening degree of the throttling device is kept unchanged, and the second preset value is less than the first preset value.

9. The air conditioner according to any one of claims 5 to 8, wherein The throttling device is an electronic expansion valve. 10.An operation control device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the operation control method of the air conditioner according to any one of claims 1 to 9. 11.An air conditioner comprising the operation control device according to claim 10. 12.A computer readable storage medium storing computer executable instructions for causing a computer to perform the operation control method of the air conditioner according to any one of claims 1 to 9.

Images