Air conditioner control method and device, air conditioner, storage medium and program product
By adjusting the electronic expansion valve opening and compressor frequency in the air conditioner according to the air outlet temperature and coil temperature, the problem of refrigerant overheating in the air conditioner in a high-temperature and high-humidity environment is solved, and the refrigeration effect and user experience of the air conditioner are improved.
Patent Information
- Application Number
- CN202510327151.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2025-05-13
AI Technical Summary
In the high temperature and high humidity conditions, the overheating of the refrigerant causes the heat exchange efficiency of the heat exchanger to decrease, affecting the overall performance and refrigeration effect of the air conditioner, and thus affecting the user experience.
By obtaining the air outlet temperature of the air conditioner and the coil temperature of the indoor unit heat exchanger, the electronic expansion valve opening and compressor frequency are controlled to adjust the degree of overheating of the refrigerant. The specific method includes adjusting the parameters of the electronic expansion valve and compressor according to different temperature differences and coil temperature differences at different lengths of the air conditioner when the air conditioner is turned on and run.
Effectively control the overheating degree of refrigerant, improve the refrigeration effect of air conditioners, improve user experience, and optimize the overall performance of air conditioners.
Smart Images

Figure CN119983503A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of air conditioners, and specifically relates to a control method and device for an air conditioner, an air conditioner, a storage medium and a computer program product. Background Art
[0002] In commercial kitchens of hotels and restaurants, multiple stoves operating simultaneously will generate high-temperature steam. The cooking and sterilization processes in food processing workshops will produce saturated steam, and the ambient temperature usually reaches 35-50°C. The dyeing process in textile printing and dyeing factories requires high-temperature steam, and the humidity in the workshop usually exceeds 75%. In the top attic or sun room, direct sunlight causes a sudden rise in temperature, and the enclosed space will cause humidity to accumulate. The above environments will form high temperature and high humidity conditions. Under such conditions, the refrigerant in the heat exchanger of the indoor unit of the air conditioner is prone to overheating. Overheating of the refrigerant will reduce the heat exchange efficiency of the heat exchanger, which will in turn affect the overall performance of the air conditioner, resulting in a poor cooling effect, and ultimately affecting the user experience. Summary of the invention
[0003] In view of the above problems, the present application provides an air conditioner control method, device, air conditioner, storage medium and computer program product, which are used to solve the problem that when the air conditioner is under high temperature and high humidity conditions, the refrigerant in the heat exchanger of the air conditioner indoor unit overheats, reducing the heat exchange efficiency of the heat exchanger, thereby affecting the overall performance of the air conditioner, causing the cooling effect to deteriorate, and ultimately affecting the user experience.
[0004] According to a first aspect of the present application, a method for controlling an air conditioner is provided, wherein the air conditioner has a compressor, an electronic expansion valve, and an indoor heat exchanger; the method comprises: when the air conditioner is turned on and operates in a cooling mode, obtaining a first air outlet temperature T of the air conditioner 出风1 , Second air outlet temperature T 出风2 , and the third outlet air temperature T 出风3 , obtain the first coil temperature T of the indoor heat exchanger 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 ;
[0005] When the air conditioner is turned on and runs for the preset second running time t2, according to the first outlet air temperature T 出风1 The second outlet air temperature T 出风2 Control the opening of the electronic expansion valve; the first outlet air temperature T 出风1 and the second outlet air temperature T 出风2 They are obtained when the air conditioner is turned on and runs for the preset first running time t1 and second running time t2 respectively;
[0006] When the air conditioner is turned on and runs for the preset third running time t3, according to the second air outlet temperature T 出风2 , the third air outlet temperature T出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Control the compressor frequency; the third air outlet temperature T 出风3 , the first coil temperature T 内管1 and the first outlet temperature T 出管1 It is obtained when the air conditioner is turned on and runs for a preset third operating time t3; the first operating time t1<the second operating time t2<the third operating time t3.
[0007] In some embodiments, the air conditioner further comprises an indoor fan; 出风1 The second outlet air temperature T 出风2 Before controlling the opening of the electronic expansion valve, it also includes:
[0008] When the air conditioner is turned on and runs for a preset time t0, if the speed gear of the indoor fan set by the user is a high speed gear, the speed of the indoor fan is reduced by R-ΔR1;
[0009] If the speed gear of the indoor fan set by the user is the medium speed gear, the speed of the indoor fan is reduced to R-ΔR2;
[0010] If the speed gear of the indoor fan set by the user is a low speed gear, the speed of the indoor fan is reduced to R-ΔR3;
[0011] Among them, R is the indoor fan speed when the air conditioner is turned on and running for a preset time t0, ΔR1, ΔR2 and ΔR3 are preset indoor fan speed adjustment parameters, and ΔR1>ΔR2>ΔR3, and the preset time t0<the first operating time t1.
[0012] In some embodiments, the first outlet air temperature T 出风1 The second outlet air temperature T 出风2 Control the opening of the electronic expansion valve, including:
[0013] Calculate the second outlet air temperature T 出风2 The first outlet air temperature T 出风1 The difference is recorded as the first outlet air temperature difference ΔT 出风1 ;
[0014] If the first outlet air temperature difference ΔT 出风1 >Preset temperature threshold ΔT 出风 , then increase the opening of the electronic expansion valve; ΔT 出风 is the preset air outlet temperature difference parameter;
[0015] If the first outlet air temperature difference ΔT出风1 ≤Preset temperature threshold ΔT 出风 , the opening of the electronic expansion valve is kept unchanged.
[0016] In some embodiments, the second outlet air temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Controls compressor frequency, including:
[0017] Calculate the third air outlet temperature T 出风3 The second outlet temperature T 出风2 The difference is recorded as the second outlet temperature difference ΔT 出风2 ;
[0018] If the second outlet air temperature difference ΔT 出风2 ≥ preset value, then according to the first coil temperature T 内管1 and the first outlet temperature T 出管1 Control compressor frequency;
[0019] If the second outlet air temperature difference ΔT 出风2 <preset value, the compressor frequency remains unchanged.
[0020] In some embodiments, the first coil temperature T 内管1 and the first outlet temperature T 出管1 Controls compressor frequency, including:
[0021] Calculate the first outlet temperature T 出管1 The first coil temperature T 内管1 The difference is recorded as the first tube temperature difference ΔT 管温Ⅰ ;
[0022] If ΔT 管温1 <ΔT 管温Ⅰ ≤ΔT 管温2 , then keep the compressor frequency unchanged;
[0023] If ΔT 管温2 <ΔT 管温Ⅰ ≤ΔT 管温3 , then reduce the compressor frequency to F-ΔF1;
[0024] If ΔT 管温3 <ΔT 管温Ⅰ , then reduce the compressor frequency to F-ΔF2;
[0025] Where, ΔT 管温1 , ΔT 管温2 , ΔT管温3 is the preset pipe temperature difference parameter, and ΔT 管温1 <ΔT 管温2 <ΔT 管温3 , F is the compressor frequency, ΔF1 and ΔF2 are compressor frequency adjustment parameters, and ΔF1<ΔF2.
[0026] In some embodiments, according to the second outlet air temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 After controlling the compressor frequency, it also includes:
[0027] The air conditioner runs for the preset time t with the current operating parameters. 循环 In the case of, obtain the second coil temperature T of the indoor unit heat exchanger 内管2 and the second outlet pipe temperature T of the indoor unit heat exchanger 出管2 ;
[0028] Calculate the second outlet temperature T 出管2 The second coil temperature T 内管2 The difference is recorded as the second tube temperature difference ΔT 管温Ⅱ ;
[0029] If the second tube temperature difference ΔT 管温Ⅱ <ΔT 管温4 , then restore the current operating parameters to the initial operating parameters, and control the air conditioner to run with the initial operating parameters;
[0030] If the second tube temperature difference ΔT 管温Ⅱ ≥ΔT 管温4 , the current operating parameters remain unchanged; ΔT 管温4 is a preset pipe temperature difference parameter; the operating parameter includes at least one of the indoor fan speed, the electronic expansion valve opening and the compressor frequency.
[0031] Matching the above method, the present invention provides, on the other hand, a control device for an air conditioner, wherein the air conditioner has a compressor, an electronic expansion valve and an indoor unit heat exchanger;
[0032] The control device comprises:
[0033] The acquisition unit is configured to acquire the first air outlet temperature T of the air conditioner when the air conditioner is turned on and operates in a cooling mode. 出风1 , Second air outlet temperature T 出风2 , and the third outlet air temperature T 出风3 , obtain the first coil temperature T of the indoor heat exchanger 内管1and the first outlet pipe temperature T of the indoor unit heat exchanger 出管 1;
[0034] The control unit is configured to, when the air conditioner is turned on and runs for a preset second running time t2, adjust the air outlet temperature T according to the first air outlet temperature T 出风1 The second outlet air temperature T 出风2 Control the opening of the electronic expansion valve; the first outlet air temperature T 出风1 and the second outlet air temperature T 出风2 They are obtained when the air conditioner is turned on and runs for the preset first running time t1 and second running time t2 respectively;
[0035] The control unit is further configured to, when the air conditioner is turned on and runs for a preset third running time t3, control the air conditioner to adjust the air flow rate according to the second air outlet temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Control the compressor frequency; the third air outlet temperature T 出风3 , the first coil temperature T 内管1 and the first outlet temperature T 出管1 It is obtained when the air conditioner is turned on and runs for a preset third operating time t3; the first operating time t1<the second operating time t2<the third operating time t3.
[0036] Matching the above device, the present invention provides an air conditioner on another aspect, including: the control device of the air conditioner mentioned above.
[0037] In accordance with the above method, the present invention provides a storage medium on another aspect, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned air conditioning control method.
[0038] In accordance with the above method, the present invention provides a computer program product on another aspect, wherein the computer program product includes a computer program, and when the computer program product is processed and executed, the steps of the above air conditioner control method are implemented.
[0039] In the solution of the present invention, when the air conditioner is turned on and runs for a preset second running time t2, the first outlet air temperature T 出风1 The second outlet air temperature T 出风2 Control the opening of the electronic expansion valve; when the air conditioner is turned on and runs for the preset third running time t3, according to the second air outlet temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Control the compressor frequency. This solution adjusts the air conditioner's electronic expansion valve opening and compressor frequency according to the air outlet temperature of the air conditioner and the coil temperature of the indoor unit heat exchanger, thereby controlling the overheating of the refrigerant in the indoor unit heat exchanger, thereby improving the cooling effect of the air conditioner and improving the user experience.
[0040] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention.
[0041] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] Figure 1 A schematic diagram of a flow chart of an embodiment of a method for controlling an air conditioner of the present invention;
[0043] Figure 2 It is a flow chart of a method for controlling the compressor frequency of an air conditioner of the present invention;
[0044] Figure 3 A schematic flow chart of another embodiment of a method for controlling an air conditioner according to the present invention;
[0045] Figure 4 It is a schematic flow chart of the control method of the air conditioner of the present invention;
[0046] Figure 5 A schematic structural diagram of an embodiment of a control device for an air conditioner of the present invention;
[0047] Figure 6 It is a structural schematic diagram of the air conditioner of the present invention.
[0048] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:
[0049] 1-indoor fan; 2-indoor heat exchanger; 3-electronic expansion valve; 4-compressor; 5-outdoor heat exchanger; 6-outdoor fan; 102-acquisition unit; 104-control unit. DETAILED DESCRIPTION
[0050] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.
[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0052] Under special working conditions of high temperature and high humidity (such as kitchen conditions), the heat load of the air conditioner is significantly different from that in the normal environment, and the time phase division and control logic need to be optimized in a targeted manner.
[0053] The structure of air conditioner Figure 6 As shown, it may include: an indoor fan 1, which is used to drive air to flow through the indoor heat exchanger, accelerate the cold and heat exchange, and send the treated air into the room. The indoor heat exchanger 2, which acts as an evaporator during refrigeration, wherein the liquid refrigerant evaporates and absorbs heat, thereby reducing the air temperature. The electronic expansion valve 3 is a throttling and pressure-reducing device, which is used to adjust the refrigerant flow and pressure and control the refrigerant state at the evaporator inlet. The compressor 4 is used to compress the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gas to increase the refrigerant energy. The outdoor heat exchanger 5, which acts as a condenser during refrigeration, wherein the high-temperature refrigerant dissipates heat to the outside and liquefies. The outdoor fan 6 is used to force air to flow through the outdoor heat exchanger to accelerate heat dissipation. The state of the refrigerant changes as follows: gaseous state (low pressure) → compression → gaseous state (high pressure) → condensation → liquid state (high pressure) → throttling → gas-liquid mixing (low pressure) → evaporation → gaseous state (low pressure).
[0054] When the user issues a cooling start command through the remote control or smart device, the air conditioner receives the signal and starts the cooling mode. The air conditioner starts to operate according to the mode set by the user (such as cooling temperature, wind speed, wind direction, etc.).
[0055] In some embodiments, the control method of the air conditioner includes: when the air conditioner is turned on and runs for a preset time t0, adjusting the indoor fan speed according to the gear of the indoor fan speed set by the user. The corresponding relationship between the gear of the indoor fan speed set by the user and the adjusted indoor fan speed is shown in Table 1 below. If the gear of the indoor fan speed set by the user is high speed, the indoor fan speed is reduced by R-ΔR1; if the gear of the indoor fan speed set by the user is medium speed, the indoor fan speed is reduced by R-ΔR2; if the gear of the indoor fan speed set by the user is low speed, the indoor fan speed is reduced by R-ΔR3; wherein R is the indoor fan speed when the air conditioner is turned on and runs for a preset time t0, ΔR1, ΔR2 and ΔR3 are preset indoor fan speed adjustment parameters, and ΔR1>ΔR2>ΔR3.
[0056] Table 1
[0057]
[0058] The high temperature and high humidity in the kitchen cause the initial heat load of the air conditioner to be extremely high, and the refrigerant circulation takes a longer time to reach a stable state. Therefore, reducing the indoor fan speed too early will lead to insufficient evaporator wind speed and aggravate condensation.
[0059] The preset time t0 of the air conditioner startup operation is calculated from the startup operation, and can be set to 58min-62min, preferably 60min. ΔR1, ΔR2 and ΔR3 can be set based on experimental data or system design parameters. For example, ΔR1 can be set to 45-55RPM (Revolutions Per Minute), preferably 50RPM, ΔR2 can be set to 35-45RPM, preferably 40RPM, and ΔR3 can be set to 25-35RPM, preferably 30RPM.
[0060] Appropriately reducing the speed of the indoor fan can reduce the air flow and the wind speed on the surface of the indoor unit heat exchanger, thereby reducing the heat transfer coefficient, reducing the amount of heat absorbed by the refrigerant in the evaporator, and reducing the coil temperature (evaporation temperature). This reduces the refrigerant overheating and reduces the risk of system overheating. At the same time, the coil temperature of the indoor unit heat exchanger is reduced, and the air outlet temperature will also be appropriately reduced, improving the user's comfort.
[0061] According to an embodiment of the present invention, a method for controlling an air conditioner is provided. Figure 1 The flowchart of an embodiment of the method of the present invention is shown. The air conditioner control method may include steps S110 to S130. The specific processes of steps S110 to S130 are introduced below.
[0062] In step S110, when the air conditioner is turned on and operates in cooling mode, the first air outlet temperature T of the air conditioner is obtained. 出风1 , Second air outlet temperature T 出风2 , and the third outlet air temperature T 出风3 , obtain the first coil temperature T of the indoor heat exchanger 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 .
[0063] Specifically, the outlet air temperature can be detected by a temperature sensor. The temperature sensor can be installed 10 to 15 cm downstream of the central area of the air outlet of the air conditioner to avoid the influence of edge turbulence, thereby ensuring the accuracy and stability of temperature acquisition. The type of temperature sensor can be a thermistor, a thermocouple, or an infrared non-contact sensor, which is not limited here. The temperature sensor can adopt a multi-sensor layout, for example: 3 sensors are distributed at 120° in a circular air duct or arranged diagonally in a rectangular air duct. The use of a multi-sensor layout in the air duct of the air conditioner is to overcome the measurement error caused by uneven air flow distribution and to improve the reliability of outlet air temperature detection through multi-point data fusion.
[0064] Specifically, the coil temperature T can be detected by the temperature sensor 内管1 and outlet temperature T 出管1 The type of temperature sensor can be a thermistor or a thermocouple. The temperature sensor for detecting the coil temperature can be directly attached to the copper tube surface or between the fins of the heat exchanger, usually located in the middle of the heat exchanger or in the key heat exchange area to reflect the average temperature of the coil. The temperature sensor for detecting the outlet temperature can be installed on the outlet pipe (copper tube) of the heat exchanger, close to the outlet position of the heat exchanger, to measure the temperature of the refrigerant when it flows out of the heat exchanger.
[0065] In step S120, when the air conditioner is turned on and runs for a preset second running time t2, the air outlet temperature T 出风1 The second outlet air temperature T 出风2 Control the opening of the electronic expansion valve; the first outlet air temperature T 出风1 and the second outlet air temperature T 出风2 They are respectively obtained when the air conditioner is turned on and runs for the preset first operating time t1 and second operating time t2.
[0066] In a high humidity environment, the surface of the air conditioner evaporator is prone to condensation, and the temperature sampling interval needs to be shortened for a quick response. The first operating time t1 and the second operating time t2 are calculated from the start-up operation. The first operating time t1 can be set to 73min~77min, preferably 75min, and the second operating time t2 can be set to 88min~92min, preferably 90min.
[0067] In some embodiments, in step S120, the first outlet air temperature T 出风1 The second outlet air temperature T 出风2 The specific process of controlling the opening of the electronic expansion valve includes: calculating the second air outlet temperature T 出风2 The first outlet air temperature T 出风1 The difference is recorded as the first outlet air temperature difference ΔT 出风1 ;
[0068] If the first outlet air temperature difference ΔT 出风1 >Outlet temperature difference parameter ΔT 出风 , then increase the opening of the electronic expansion valve; ΔT 出风 is a preset air outlet temperature difference parameter; if the first air outlet temperature difference ΔT 出风1 ≤Outlet temperature difference parameter ΔT 出风 , the opening of the electronic expansion valve remains unchanged. ΔT 出风 It can be set based on experimental data or system design parameters. For example, ΔT 出风 It can be set to 2.0°C to 3.0°C, preferably 2.5°C.
[0069] Optionally, the opening of the electronic expansion valve is increased by a preset value ΔP1. ΔP1 can be set based on experimental data or system design parameters, for example, ΔP1 can be set to 8B to 12B, preferably 10B. Increasing the opening of the electronic expansion valve by a preset value can simplify the control algorithm and avoid the complexity of real-time calculation of the refrigerant flow rate.
[0070] If the first outlet air temperature difference ΔT 出风1 >Outlet temperature difference parameter ΔT 出风 , which means that as the air conditioner is running, the air outlet temperature rises, indicating that the heat absorption of the indoor unit heat exchanger decreases, and the refrigerant in the indoor unit heat exchanger may be overheated, affecting the heat exchange efficiency of the heat exchanger. At this time, increase the opening of the electronic expansion valve to increase the refrigerant flow rate to reduce the overheating of the refrigerant.
[0071] In step S130, when the air conditioner is turned on and runs for a preset third running time t3, the air outlet temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Control the compressor frequency; the third air outlet temperature T 出风3 , the first coil temperature T 内管1 and the first outlet temperature T 出管1The third operation time t3 is obtained when the air conditioner is turned on and the preset third operation time t3 is obtained; the first operation time t1 < the second operation time t2 < the third operation time t3. The third operation time t3 is calculated from the start of the operation, and can be set to 108min to 112min, preferably 110min.
[0072] In some embodiments, the second outlet air temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 The specific process of controlling the compressor frequency includes: calculating the third air outlet temperature T 出风3 The second outlet temperature T 出风2 The difference is recorded as the second outlet temperature difference ΔT 出风2 If the second outlet temperature difference ΔT 出风2 ≥ preset value, then according to the first coil temperature T 内管1 and the first outlet temperature T 出管1 Control the compressor frequency; if the second outlet temperature difference ΔT 出风2 <preset value, the compressor frequency remains unchanged.
[0073] If the second outlet air temperature difference ΔT 出风2 <preset value, the preset value can be set to 0, which means that after the expansion valve opening increases, the outlet air temperature decreases, the heat absorption degree of the indoor unit heat exchanger increases, the overheating degree of the refrigerant in the heat exchanger decreases, and the performance of the air conditioner is improved, then the compressor frequency can be kept unchanged.
[0074] If the expansion valve opening is increased (e.g. +10B), but the second outlet air temperature difference ΔT 出风2 If it is still ≥ 0, it means that simply increasing the refrigerant flow rate can no longer effectively reduce the superheat, and it may be close to the expansion valve adjustment limit (such as an expansion valve opening that is too large will lead to too low evaporation pressure or liquid hammer risk). The compressor frequency directly affects the refrigerant circulation volume and the system refrigeration capacity. Reducing the compressor frequency can reduce the refrigerant flow rate and condensing pressure, thereby systematically reducing the superheat.
[0075] In some embodiments, the first coil temperature T 内管1 and the first outlet temperature T 出管1 The specific process of controlling the compressor frequency, such as Figure 2 As shown, it includes: calculating the outlet pipe temperature T 出管1 With the coil temperature T 内管1 The difference is recorded as the first tube temperature difference ΔT 管温Ⅰ ; If ΔT 管温1 <ΔT管温Ⅰ ≤ΔT 管温2 , then keep the compressor frequency unchanged; if ΔT 管温2 <ΔT 管温Ⅰ ≤ΔT 管温3 , then reduce the compressor frequency to F-ΔF1; if ΔT 管温3 <ΔT 管温Ⅰ , then reduce the compressor frequency to F-ΔF2; where ΔT 管温1 , ΔT 管温2 , ΔT 管温3 is the preset pipe temperature difference parameter, and ΔT 管温1 <ΔT 管温2 <ΔT 管温3 , F is the current compressor frequency, ΔF1 and ΔF2 are the compressor frequency adjustment parameters, and ΔF1<ΔF2. ΔT 管温1 , ΔT 管温2 , ΔT 管温3 , ΔF1, ΔF2 can be set based on experimental data or system design parameters. For example, ΔT 管温1 It can be set to 2-3℃, preferably 2℃, ΔT 管温2 It can be set to 4-5℃, preferably 4℃, ΔT 管温3 It can be set to 6-7° C., preferably 6° C. ΔF1 can be set to 2-4 Hz, preferably 3 Hz, and ΔF2 can be set to 5-7 Hz, preferably 6 Hz.
[0076] The first tube temperature difference ΔT 管温Ⅰ The corresponding relationship with the compressor frequency is shown in Table 2 below.
[0077] Table 2
[0078]
[0079] When the first tube temperature difference ΔT 管温Ⅰ When certain conditions are reached, that is, the refrigerant in the indoor unit heat exchanger is seriously overheated, appropriately reducing the compressor frequency can increase the evaporation temperature of the air conditioner, reduce the heat absorption of the refrigerant, thereby reducing the overheating of the refrigerant and improving the heat exchange efficiency of the heat exchanger.
[0080] The technical solution of the present invention is adopted to directly increase the refrigerant flow rate by increasing the expansion valve opening, quickly respond to local overheating, and thus quickly reduce the superheating degree. When the expansion valve adjustment has reached the threshold, the compressor frequency is adjusted to reduce the overall refrigerant circulation volume and reduce the system load, thereby controlling the overheating degree of the refrigerant in the indoor unit heat exchanger, thereby improving the cooling effect of the air conditioner and improving the user experience.
[0081] According to an embodiment of the present invention, a method for controlling an air conditioner is provided. Figure 3FIG. 1 is a flow chart of another embodiment of the method of the present invention. The air conditioner control method may include steps S210 to S240.
[0082] Since steps S210 to S230 of this embodiment correspond to steps S110 to S130 of the aforementioned embodiment, for details not fully described in this embodiment, reference may be made to the relevant descriptions in the aforementioned embodiment, and no further elaboration is given here.
[0083] The specific process of step S240 is introduced below.
[0084] In some embodiments, according to the second outlet air temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 After controlling the compressor frequency, step S240 is further included.
[0085] In step S240, the air conditioner is operated with the current operating parameters for a preset time period t 循环 In the case of, obtain the second coil temperature T of the indoor unit heat exchanger 内管2 and the second outlet pipe temperature T of the indoor unit heat exchanger 出管2 ; Calculate the second outlet temperature T 出管2 The second coil temperature T 内管2 The difference is recorded as the second tube temperature difference ΔT 管温Ⅱ ; If the second tube temperature difference ΔT 管温Ⅱ <ΔT 管温4 , then restore the current operating parameters to the initial operating parameters, and control the air conditioner to operate with the initial operating parameters; wherein the initial operating parameters include at least one of the following: the indoor fan speed before adjusting the indoor fan speed according to the gear of the indoor fan speed set by the user, according to the first outlet air temperature T 出风1 The second outlet air temperature T 出风2 The electronic expansion valve opening before controlling the electronic expansion valve opening is based on the second outlet air temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 The compressor frequency before controlling the compressor frequency. If the second pipe temperature difference ΔT 管温Ⅱ ≥ΔT 管温4 , the current operating parameters remain unchanged; ΔT 管温4 is a preset pipe temperature difference parameter; the operating parameter includes at least one of the indoor fan speed, the electronic expansion valve opening and the compressor frequency. 循环It can be set to 28min~32min, preferably 30min. ΔT 管温4 It can be set based on experimental data or system design parameters. For example, ΔT 管温4 It can be set to 2-4°C, preferably 2°C.
[0086] If the second tube temperature difference ΔT 管温Ⅱ ≥ΔT 管温4 , indicating that the refrigerant superheat has been significantly reduced (the evaporator heat exchange efficiency has been improved), and the compressor frequency reduction effect has become apparent, and the system heat load has tended to be balanced. Keeping the current operating parameters unchanged can avoid excessive adjustment that leads to reduced energy efficiency or equipment shock, and keep the air conditioner in the optimal steady-state range. After the parameters are stable, the outlet temperature fluctuation is reduced, avoiding frequent changes in room temperature that affect the user experience.
[0087] If the second tube temperature difference ΔT 管温Ⅱ <ΔT 管温4 , the current operating parameters are restored to the initial operating parameters, and the air conditioner is controlled to run with the initial operating parameters. The operating parameters can be obtained and stored through the real-time parameter cache mechanism. For example, when the system starts any parameter adjustment, the controller will immediately temporarily store the current operating parameters in the memory (such as RAM). Some systems support saving parameter snapshots at multiple time points for easy retrospective analysis. For example, parameter groups (such as indoor fan speed, electronic expansion valve opening, compressor frequency combination) are stored by timestamp for control.
[0088] By returning to the indoor fan speed before adjusting the indoor fan speed according to the gear position of the indoor fan speed set by the user, according to the first air outlet temperature T 出风1 The second outlet air temperature T 出风2 The electronic expansion valve opening before controlling the electronic expansion valve opening is based on the second outlet air temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Controlling the compressor frequency before the compressor frequency can achieve a balance between system safety, energy efficiency and comfort, provide temperature stability of the air conditioner, avoid drastic fluctuations in room temperature due to sudden changes in parameters, and thus optimize the user experience.
[0089] After a single adjustment of the air conditioning operating parameters, environmental changes (such as heat load fluctuations, user setting changes) may cause the system to deviate from the optimal state. Therefore, it is necessary to implement dynamic closed-loop control by periodically testing and adjusting system parameters to ensure the stability of system operation and energy efficiency optimization.
[0090] In some implementations, after the above step S240, step S250 is further included.
[0091] In step S250, step S240 is repeated, that is, the air conditioner is operated with the current operating parameters for the preset time t 循环 In the case of, obtain the second coil temperature T of the indoor unit heat exchanger 内管2 and the second outlet pipe temperature T of the indoor unit heat exchanger 出管2 ; Calculate the second outlet temperature T 出管2 The second coil temperature T 内管2 The difference is recorded as the second tube temperature difference ΔT 管温Ⅱ ; If the second tube temperature difference ΔT 管温Ⅱ <ΔT 管温4 , then restore the current operating parameters to the initial operating parameters, and control the air conditioner to operate with the initial operating parameters; if the second pipe temperature difference ΔT 管温Ⅱ ≥ΔT 管温4 , the current operating parameters remain unchanged; ΔT 管温4 is a preset pipe temperature difference parameter; the operating parameter includes at least one of the indoor fan speed, the electronic expansion valve opening and the compressor frequency.
[0092] At preset intervals, such as 30 minutes, the current state is evaluated and adjusted. Through periodic detection and parameter adjustment, the parameters after a single adjustment are prevented from solidifying or oscillating, the heat load is matched in real time, and ineffective energy consumption is reduced, thereby achieving adaptive control of the air conditioner.
[0093] Figure 4 FIG. 1 is a flow chart of a control method for an air conditioner according to the present invention. Figure 4 As shown, the method includes:
[0094] S01, receiving a signal for starting the air conditioner cooling;
[0095] S02, running in the mode set by the user;
[0096] S03, start the machine and run t0 to control the speed of the indoor fan;
[0097] S04, start the machine and run t1, obtain the current first air outlet temperature T 出风1 ;
[0098] S05, start the machine and run t2, obtain the current second air outlet temperature T 出风2 , calculate the second outlet air temperature T 出风2 The first air outlet temperature T 出风1 The difference ΔT 出风1 , the first outlet temperature difference ΔT 出风1 >Outlet temperature difference parameter ΔT 出风 , then execute S06, otherwise continue to run with the current parameters;
[0099] S06, the opening of the electronic expansion valve increases by ΔP1;
[0100] S07, start the machine and run t3 to obtain the current third air outlet temperature T 出风3 , calculate the third outlet air temperature T 出风3 The second outlet air temperature T 出风2 Difference ΔT 出风2 , the second outlet temperature difference ΔT 出风2 <0, continue to run with the current parameters, otherwise execute S08;
[0101] S08, obtaining the first coil temperature T of the current indoor unit heat exchanger 内管1 The first outlet pipe temperature T of the indoor unit heat exchanger 出管1 , calculate the first outlet temperature T 出管1 The first coil temperature T 内管1 The difference in temperature of the first tube is ΔT 管温Ⅰ ;
[0102] S09, according to the first tube temperature difference ΔT 管温Ⅰ , execute the control of the compressor frequency;
[0103] S10, run t with current parameters 循环 ;
[0104] S11, obtain the second coil temperature T of the current indoor unit heat exchanger 内管2 and the second outlet temperature T 出管2 , calculate the second outlet temperature T 出管2 The second coil temperature T 内管2 The difference ΔT 管温Ⅱ ; If ΔT 管温Ⅱ <ΔT 管温4 , the current operating parameters are restored to the initial operating parameters, and the air conditioner is controlled to run with the initial operating parameters; otherwise, it continues to run with the current parameters.
[0105] S12, repeat step S10.
[0106] The above method is introduced below in conjunction with specific embodiments.
[0107] Receive the signal of air conditioning cooling start-up and run in the mode set by the user (the user sets the indoor fan speed to high speed). After running for 60 minutes, reduce ΔR1 based on the current indoor fan speed. ΔR1 can be set to 50RPM. After running for 75 minutes, obtain the first air outlet temperature T 出风1 The second outlet air temperature T is 13℃. After the machine is turned on and runs for 90 minutes, the second outlet air temperature T is obtained. 出风2 is 16°C. Calculate the second outlet air temperature T 出风2 The first air outlet temperature T出风1 The difference between the first outlet air temperature and the 出风1 3°C. ΔT 出风 is the preset air outlet temperature difference parameter, ΔT 出风 It can be set to 2.5℃. At this time, the first outlet temperature difference ΔT 出风1 Greater than ΔT 出风 (3℃>2.5℃), the electronic expansion valve opening increases by 10B. After the machine is turned on and runs for 110 minutes, the third outlet air temperature T is obtained. 出风3 is 17℃, calculate the third outlet temperature T 出风3 The second outlet air temperature T 出风2 The difference between the second outlet air temperature and the 出风2 1℃, greater than zero (1℃>0). Get the first coil temperature T of the current indoor unit heat exchanger 内管1 is 16℃, the first outlet temperature T 出管1 is 21°C. Calculate the first outlet temperature T 出管1 The first coil temperature T 内管1 The difference, that is, the first tube temperature difference ΔT 管温Ⅰ , is 5°C. ΔT 管温2 Can be set to 4℃, ΔT 管温3 Can be set to 6℃, ΔT 管温Ⅰ In ΔT 管温2 <ΔT 管温Ⅰ ≤ΔT 管温3 If the compressor frequency is within the range (4℃<5℃≤6℃), the compressor frequency will be reduced by 3Hz based on the current frequency. 循环 , t 循环 It can be set to 30 minutes. Get the current second coil temperature T of the indoor unit heat exchanger 内管2 The second outlet temperature is 17°C and T 出管2 is 20℃. Calculate the second outlet temperature T 出管2 The second coil temperature T 内管2 The difference, that is, the second tube temperature difference ΔT 管温Ⅱ 3°C. ΔT 管温4 Can be set to 2℃, the second tube temperature difference ΔT 管温Ⅱ >ΔT 管温4 , continue running with current parameters.
[0108] By adopting the technical solution of the present invention, the three parameters of fan speed, electronic expansion valve opening and compressor frequency are coupled and controlled to accurately maintain the superheat degree of the refrigerant in the evaporator, improve the evaporation efficiency of the refrigerant, reduce the ineffective power consumption of the compressor, improve energy efficiency, and improve user experience.
[0109] See also Figure 5The schematic diagram of the structure of an embodiment of the device of the present invention is shown. The control device of the air conditioner, the air conditioner, has a compressor, an electronic expansion valve and an indoor unit heat exchanger;
[0110] The control device comprises:
[0111] The acquisition unit 102 is configured to acquire a first air outlet temperature T of the air conditioner when the air conditioner is turned on and operates in a cooling mode. 出风1 , Second air outlet temperature T 出风2 , and the third outlet air temperature T 出风3 , obtain the first coil temperature T of the indoor heat exchanger 内管1 and the first outlet pipe temperature Tout1 of the indoor unit heat exchanger;
[0112] The control unit 104 is configured to, when the air conditioner is turned on and runs for a preset second running time t2, adjust the air outlet temperature T according to the first air outlet temperature T 出风1 The second outlet air temperature T 出风2 Control the opening of the electronic expansion valve; the first outlet air temperature T 出风1 and the second outlet air temperature T 出风2 They are obtained when the air conditioner is turned on and runs for the preset first running time t1 and second running time t2 respectively;
[0113] The control unit 104 is further configured to, when the air conditioner is turned on and runs for a preset third running time t3, control the air conditioner to run according to the second air outlet temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Control the compressor frequency; the third air outlet temperature T 出风3 , the first coil temperature T 内管1 and the first outlet temperature T 出管1 It is obtained when the air conditioner is turned on and runs for a preset third operating time t3; the first operating time t1<the second operating time t2<the third operating time t3.
[0114] The technical solution of the present invention is adopted to directly increase the refrigerant flow rate by increasing the expansion valve opening, quickly respond to local overheating, and thus quickly reduce the superheating degree. When the expansion valve adjustment has reached the threshold, the compressor frequency is adjusted to reduce the overall refrigerant circulation volume and reduce the system load, thereby controlling the overheating degree of the refrigerant in the indoor unit heat exchanger, thereby improving the cooling effect of the air conditioner and improving the user experience.
[0115] According to an embodiment of the present invention, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner may include: the control device of the air conditioner described above.
[0116] Since the processing and functions implemented by the air conditioner of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.
[0117] The technical solution of the present invention is adopted to directly increase the refrigerant flow rate by increasing the expansion valve opening, quickly respond to local overheating, and thus quickly reduce the superheating degree. When the expansion valve adjustment has reached the threshold, the compressor frequency is adjusted to reduce the overall refrigerant circulation volume and reduce the system load, thereby controlling the overheating degree of the refrigerant in the indoor unit heat exchanger, thereby improving the cooling effect of the air conditioner and improving the user experience.
[0118] According to an embodiment of the present invention, a storage medium corresponding to the air conditioner control method is also provided, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the air conditioner control method described above.
[0119] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.
[0120] The technical solution of the present invention is adopted to directly increase the refrigerant flow rate by increasing the expansion valve opening, quickly respond to local overheating, and thus quickly reduce the superheating degree. When the expansion valve adjustment has reached the threshold, the compressor frequency is adjusted to reduce the overall refrigerant circulation volume and reduce the system load, thereby controlling the overheating degree of the refrigerant in the indoor unit heat exchanger, thereby improving the cooling effect of the air conditioner and improving the user experience.
[0121] According to an embodiment of the present invention, a computer program product corresponding to the air conditioner control method is also provided, wherein the computer program product comprises a computer program, and when the computer program product is processed and executed, the steps of the air conditioner control method are implemented.
[0122] Since the processing and functions implemented by the computer program product of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.
[0123] The technical solution of the present invention is adopted to directly increase the refrigerant flow rate by increasing the expansion valve opening, quickly respond to local overheating, and thus quickly reduce the superheating degree. When the expansion valve adjustment has reached the threshold, the compressor frequency is adjusted to reduce the overall refrigerant circulation volume and reduce the system load, thereby controlling the overheating degree of the refrigerant in the indoor unit heat exchanger, thereby improving the cooling effect of the air conditioner and improving the user experience.
[0124] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.
[0125] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.
Claims
1. A method for controlling an air conditioner, characterized in that: The air conditioner has a compressor, an electronic expansion valve and an indoor unit heat exchanger; The method comprises: When the air conditioner is turned on and operates in cooling mode, the first air outlet temperature T of the air conditioner is obtained. 出风1 , Second air outlet temperature T 出风2 , and the third outlet air temperature T 出风3 , obtain the first coil temperature T of the indoor heat exchanger 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 ; When the air conditioner is turned on and runs for the preset second running time t2, according to the first outlet air temperature T 出风1 The second outlet air temperature T 出风2 Control the opening of the electronic expansion valve; the first outlet air temperature T 出风1 and the second outlet air temperature T 出风2 They are obtained when the air conditioner is turned on and runs for the preset first running time t1 and second running time t2 respectively; When the air conditioner is turned on and runs for the preset third running time t3, according to the second air outlet temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Control the compressor frequency; the third air outlet temperature T 出风3 , the first coil temperature T 内管1 and the first outlet temperature T 出管1 It is obtained when the air conditioner is turned on and runs for a preset third operating time t3; the first operating time t1<the second operating time t2<the third operating time t3.
2. The air conditioner control method according to claim 1, characterized in that: The air conditioner also has an indoor fan; According to the first outlet air temperature T 出风1 The second outlet air temperature T 出风2 Before controlling the opening of the electronic expansion valve, it also includes: When the air conditioner is turned on and runs for a preset time t0, if the speed gear of the indoor fan set by the user is a high speed gear, the speed of the indoor fan is reduced by R-ΔR1; If the speed gear of the indoor fan set by the user is the medium speed gear, the speed of the indoor fan is reduced to R-ΔR2; If the speed gear of the indoor fan set by the user is a low speed gear, the speed of the indoor fan is reduced to R-ΔR3; Among them, R is the indoor fan speed when the air conditioner is turned on and running for a preset time t0, ΔR1, ΔR2 and ΔR3 are preset indoor fan speed adjustment parameters, and ΔR1>ΔR2>ΔR3, and the preset time t0<the first operating time t1.
3. The air conditioner control method according to claim 1 or 2, characterized in that: According to the first outlet air temperature T 出风1 The second outlet air temperature T 出风2 Control the opening of the electronic expansion valve, including: Calculate the second outlet air temperature T 出风2 The first outlet air temperature T 出风1 The difference is recorded as the first outlet air temperature difference ΔT 出风1 ; If the first outlet air temperature difference ΔT 出风1 >Preset temperature threshold ΔT 出风 , then increase the opening of the electronic expansion valve; ΔT 出风 is the preset air outlet temperature difference parameter; If the first outlet air temperature difference ΔT 出风1 ≤Preset temperature threshold ΔT 出风 , the opening of the electronic expansion valve is kept unchanged.
4. The air conditioner control method according to claim 1 or 2, characterized in that: According to the second outlet air temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Controls compressor frequency, including: Calculate the third air outlet temperature T 出风3 The second outlet temperature T 出风2 The difference is recorded as the second outlet temperature difference ΔT 出风2 ; If the second outlet air temperature difference ΔT 出风2 ≥ preset value, then according to the first coil temperature T 内管1 and the first outlet temperature T 出管1 Control compressor frequency; If the second outlet air temperature difference ΔT 出风2 <preset value, the compressor frequency remains unchanged.
5. The air conditioner control method according to claim 4, characterized in that: According to the first coil temperature T 内管1 and the first outlet temperature T 出管1 Controls compressor frequency, including: Calculate the first outlet temperature T 出管1 The first coil temperature T 内管1 The difference is recorded as the first tube temperature difference ΔT 管温Ⅰ ; If ΔT 管温1 <ΔT 管温Ⅰ ≤ΔT 管温2 , then keep the compressor frequency unchanged; If ΔT 管温2 <ΔT 管温Ⅰ ≤ΔT 管温3 , then reduce the compressor frequency to F-ΔF1; If ΔT 管温3 <ΔT 管温Ⅰ , then reduce the compressor frequency to F-ΔF2; Where, ΔT 管温1 , ΔT 管温2 , ΔT 管温3 is the preset pipe temperature difference parameter, and ΔT 管温1 <ΔT 管温2 <ΔT 管温3 , F is the compressor frequency, ΔF1 and ΔF2 are compressor frequency adjustment parameters, and ΔF1<ΔF2.
6. The air conditioner control method according to claim 1 or 2, characterized in that: According to the second outlet air temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 After controlling the compressor frequency, it also includes: The air conditioner runs for the preset time t with the current operating parameters. 循环 In the case of, obtain the second coil temperature T of the indoor unit heat exchanger 内管2 and the second outlet pipe temperature T of the indoor unit heat exchanger 出管2 ; Calculate the second outlet temperature T 出管2 The second coil temperature T 内管2 The difference is recorded as the second tube temperature difference ΔT 管温Ⅱ ; If the second tube temperature difference ΔT 管温Ⅱ <ΔT 管温4 , then restore the current operating parameters to the initial operating parameters, and control the air conditioner to run with the initial operating parameters; If the second tube temperature difference ΔT 管温Ⅱ ≥ΔT 管温4 , the current operating parameters remain unchanged; ΔT 管温4 is a preset pipe temperature difference parameter; the operating parameter includes at least one of the indoor fan speed, the electronic expansion valve opening and the compressor frequency.
7. A control device for an air conditioner, characterized in that: The air conditioner has a compressor, an electronic expansion valve and an indoor unit heat exchanger; The control device comprises: The acquisition unit is configured to acquire the first air outlet temperature T of the air conditioner when the air conditioner is turned on and operates in a cooling mode. 出风1 , Second air outlet temperature T 出风2 , and the third outlet air temperature T 出风3 , obtain the first coil temperature T of the indoor heat exchanger 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 ; The control unit is configured to, when the air conditioner is turned on and runs for a preset second running time t2, adjust the air outlet temperature T according to the first air outlet temperature T 出风1 The second outlet air temperature T 出风2 Control the opening of the electronic expansion valve; the first outlet air temperature T 出风1 and the second outlet air temperature T 出风2 They are obtained when the air conditioner is turned on and runs for the preset first running time t1 and second running time t2 respectively; The control unit is further configured to, when the air conditioner is turned on and runs for a preset third running time t3, control the air conditioner to adjust the air flow rate according to the second air outlet temperature T 出风2 , the third air outlet temperature T 出风3 , the first coil temperature of the indoor unit heat exchanger T 内管1 and the first outlet pipe temperature T of the indoor unit heat exchanger 出管1 Control the compressor frequency; the third air outlet temperature T 出风3 , the first coil temperature T 内管1 and the first outlet temperature T 出管1 It is obtained when the air conditioner is turned on and runs for a preset third operating time t3; the first operating time t1<the second operating time t2<the third operating time t3.
8. An air conditioner, characterized in that: include: The air conditioner control device as claimed in claim 7.
9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the air conditioner control method according to any one of claims 1 to 6.
10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.