Air conditioner control method, device and air conditioner

Abstract

The present invention provides a control method, device, and air conditioner for an air conditioner. The method comprises: when a compressor in the air conditioner is started and the operating mode is cooling mode, starting a solar heating device, controlling a first electrically controlled three-way valve to execute a first path, and controlling a second electrically controlled three-way valve to execute a second path; and when the operating time of the compressor is greater than a first preset value, controlling the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve based on a third temperature and a fourth temperature. The control method, device, and air conditioner provided by the present invention can rely on the renewable and pollution-free characteristics of solar energy to directly heat the refrigerant using solar energy, effectively supplementing the heat exchange capacity of the air conditioner, improving the efficiency of the compressor, reducing energy loss during energy conversion, using solar energy to prevent liquid hammer in the compressor, and reducing the energy consumption of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a control method and device for an air conditioner, and the air conditioner. Background Art

[0002] In modern life, air conditioners are essential equipment in indoor places. Air conditioners can provide users with a comfortable living or working environment by controlling the indoor ambient temperature.

[0003] During air conditioner operation, liquid refrigerant and / or lubricant may be drawn into the compressor cylinder along with the gas, causing damage to the compressor. Alternatively, if the liquid refrigerant and / or lubricant is not promptly discharged, it may be compressed as the piston approaches top dead center, creating a transient high hydraulic pressure. This phenomenon is commonly known as liquid hammer. Liquid hammer can quickly damage compression components within the compressor, such as the valve plate, piston, connecting rod, crankshaft, and piston pin. Preventing liquid hammer in the compressor is crucial for improving air conditioner operating stability and reducing the risk of compressor damage.

[0004] Traditional air conditioners are typically powered by electricity, which can prevent compressor liquid hammer. However, with the shift in energy consumption, clean energy has become a new direction for the development of home appliances. Therefore, how to utilize clean energy to prevent compressor liquid hammer and reduce air conditioner energy consumption is a pressing technical issue in this field. Summary of the Invention

[0005] The present invention provides a control method and device for an air conditioner, and an air conditioner, which are used to solve the defects of the prior art that the air conditioner relies on electric energy to prevent liquid hammer in the compressor, resulting in high energy consumption. The method uses clean energy to prevent liquid hammer in the compressor, thereby reducing the energy consumption of the air conditioner.

[0006] The present invention provides a method for controlling an air conditioner, comprising:

[0007] When a compressor in the air conditioner is started, obtaining an operating mode of the air conditioner;

[0008] When the operating mode of the air conditioner is cooling mode, starting the solar heating device, and controlling the first electrically controlled three-way valve to execute the first path, and controlling the second electrically controlled three-way valve to execute the second path;

[0009] When the running time of the compressor is greater than a first preset value, obtaining a third temperature and a fourth temperature;

[0010] Based on the third temperature and the fourth temperature, controlling the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve;

[0011] In which, the solar heating device is used to heat the inflowing refrigerant using solar energy; the first passage is the passage between the first port of the first electrically controlled three-way valve and the third port of the first electrically controlled three-way valve; the second passage is the passage between the first port of the second electrically controlled three-way valve and the second port of the second electrically controlled three-way valve; the first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator; the first port of the second electrically controlled three-way valve is connected to the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device; the third temperature is the temperature of the refrigerant at the third port of the solar heating device; and the fourth temperature is the temperature of the refrigerant at the fourth port of the solar heating device.

[0012] According to a control method for an air conditioner provided by the present invention, when the compressor in the air conditioner is started, after obtaining the operating mode of the air conditioner, the method further includes:

[0013] When the operating mode of the air conditioner is the heating mode, the solar heating device is started, and the first electrically controlled three-way valve is controlled to execute the third path, and the second electrically controlled three-way valve is controlled to execute the fourth path;

[0014] When the running time of the compressor is greater than a second preset value, acquiring the first temperature, the second temperature and the fourth temperature;

[0015] controlling the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve based on the first temperature, the second temperature, and the fourth temperature;

[0016] Among them, the third passage is the passage between the first port of the first electrically controlled three-way valve and the second port of the first electrically controlled three-way valve; the fourth passage is the passage between the first port of the second electrically controlled three-way valve and the third port of the second electrically controlled three-way valve; the second port of the first electrically controlled three-way valve is connected to the first port of the solar heating device; the third port of the second electrically controlled three-way valve is connected to the second port of the solar heating device through the electronic expansion valve and the evaporator; the first temperature is the temperature of the refrigerant at the first port of the solar heating device; the second temperature is the temperature of the refrigerant at the second port of the solar heating device.

[0017] According to a control method for an air conditioner provided by the present invention, the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve are controlled based on the third temperature and the fourth temperature, comprising:

[0018] When the third temperature and the fourth temperature meet a first preset condition, controlling the first electrically controlled three-way valve to execute the third path, controlling the second electrically controlled three-way valve to execute the fourth path, controlling the compressor to execute a first frequency, and controlling the opening of the electronic expansion valve to execute a first opening;

[0019] When the third temperature and the fourth temperature do not satisfy the first preset condition, controlling the first electrically controlled three-way valve to execute the first path, controlling the second electrically controlled three-way valve to execute the second path, and controlling the frequency of the compressor to execute the original frequency and controlling the opening of the electronic expansion valve to execute the original opening;

[0020] The first frequency is smaller than the original frequency; and the first opening is larger than the original opening.

[0021] According to a control method for an air conditioner provided by the present invention, the method controls the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve based on the first temperature, the second temperature, and the fourth temperature, including:

[0022] When the first temperature, the second temperature, and the fourth temperature meet a second preset condition, the first electrically controlled three-way valve is controlled to execute the first path, the second electrically controlled three-way valve is controlled to execute the second path, the compressor is controlled to be reduced to execute a second frequency, and the electronic expansion valve is controlled to execute a second opening degree;

[0023] When the first temperature, the second temperature, and the fourth temperature do not satisfy the second preset condition, the first electrically controlled three-way valve is controlled to execute the third path, the second electrically controlled three-way valve is controlled to execute the fourth path, the compressor is controlled to be reduced to execute the original frequency, and the electronic expansion valve is controlled to execute the original opening degree;

[0024] The second frequency is smaller than the original frequency; and the second opening is smaller than the original opening.

[0025] According to a control method for an air conditioner provided by the present invention, the first frequency and the first opening degree are determined based on the third temperature and the fourth temperature.

[0026] According to a control method for an air conditioner provided by the present invention, the second frequency and the second opening degree are determined based on the first temperature, the second temperature and the third temperature.

[0027] According to a control method for an air conditioner provided by the present invention, the first preset condition includes: the fourth temperature is not greater than the third temperature.

[0028] According to a control method for an air conditioner provided by the present invention, the second preset condition includes: the second temperature is not greater than the first temperature, the first temperature is not greater than the fourth temperature, and the fourth temperature is not less than a third preset value.

[0029] The present invention also provides a control device for an air conditioner, comprising:

[0030] An operating mode acquisition module, configured to acquire an operating mode of the air conditioner when a compressor in the air conditioner is started;

[0031] a first control module, configured to activate the solar heating device when the operating mode of the air conditioner is the cooling mode, and control the first electrically controlled three-way valve to execute the first path, and control the second electrically controlled three-way valve to execute the second path;

[0032] A temperature acquisition module, configured to acquire a third temperature and a fourth temperature when the running time of the compressor is greater than a first preset value;

[0033] a second control module, configured to control the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve based on the third temperature and the fourth temperature;

[0034] In which, the solar heating device is used to heat the inflowing refrigerant using solar energy; the first passage is the passage between the first port of the first electrically controlled three-way valve and the third port of the first electrically controlled three-way valve; the second passage is the passage between the first port of the second electrically controlled three-way valve and the second port of the second electrically controlled three-way valve; the first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator; the first port of the second electrically controlled three-way valve is connected to the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device; the third temperature is the temperature of the refrigerant at the third port of the solar heating device; and the fourth temperature is the temperature of the refrigerant at the fourth port of the solar heating device.

[0035] The present invention provides an air conditioner, comprising: an air conditioner body and a control processor of the air conditioner; the control processor of the air conditioner is connected to the air conditioner body; and further comprising a memory and a program or instruction stored in the memory and executable on the control processor of the air conditioner, wherein when the program or instruction is executed by the control processor of the air conditioner, the control method of the air conditioner as described in any one of the above items is executed.

[0036] According to an air conditioner provided by the present invention, the air conditioner body comprises: a compressor, an electronic expansion valve, a solar heating device, a first electrically controlled three-way valve, a second electrically controlled three-way valve, a condenser and an evaporator;

[0037] The first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator;

[0038] The first port of the second electrically controlled three-way valve is connected to the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device;

[0039] The solar heating device is used to heat the inflowing refrigerant using solar energy.

[0040] According to the present invention, an air conditioner is provided, comprising: the second port of the first electrically controlled three-way valve is connected to the first port of the solar heating device; the third port of the second electrically controlled three-way valve is connected to the second port of the solar heating device through the electronic expansion valve and the evaporator.

[0041] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, any of the above-described air conditioner control methods is implemented.

[0042] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the control method of the air conditioner as described above is implemented.

[0043] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any of the above-mentioned air conditioner control methods.

[0044] The control method, device and air conditioner of the air conditioner provided by the present invention start the solar heating device when the compressor in the air conditioner is started and the operating mode of the air conditioner is the cooling mode, and control the first electrically controlled three-way valve to execute the first path and the second electrically controlled three-way valve to execute the second path. Then, when the operating time of the compressor is greater than a first preset value, the third temperature and the fourth temperature are obtained, and based on the above-mentioned third temperature and fourth temperature, the frequency of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the compressor and the opening of the electronic expansion valve are controlled. Relying on the renewable and pollution-free characteristics of solar energy, solar energy is used to directly heat the refrigerant, effectively supplement the heat exchange capacity of the air conditioner, improve the efficiency of the compressor, reduce energy loss in the energy conversion process, use solar energy to prevent liquid hammer in the compressor, and reduce the energy consumption of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 This is one of the flow charts of the air conditioner control method provided by the present invention;

[0047] Figure 2 This is one of the structural diagrams of the air conditioner in the air conditioner control method provided by the present invention;

[0048] Figure 3 This is a second flow chart of the air conditioner control method provided by the present invention;

[0049] Figure 4 1 is a schematic structural diagram of a control device for an air conditioner provided by the present invention;

[0050] Figure 5 This is the second structural diagram of the air conditioner in the air conditioner control method provided by the present invention;

[0051] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0052] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0053] In the description of the invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] Traditional air conditioners typically use mains electricity as their energy source. Through a series of energy conversions, these systems convert electrical energy into internal energy to achieve functions such as cooling and heating. For example, traditional air conditioners can use electric heaters to heat the refrigerant, thereby preventing liquid hammer in the compressor. However, air conditioners are energy-intensive household appliances, and the energy conversion process inevitably results in energy losses, further increasing the air conditioner's energy consumption. With the transformation of energy structures, reducing the energy consumption of air conditioners has become a hot research topic in this field.

[0055] To address this issue, the present invention provides an air conditioner control method, device, and air conditioner. The air conditioner control method provided by the present invention leverages the renewable and pollution-free nature of solar energy to directly heat the refrigerant, effectively supplementing the air conditioner's heat exchange capacity and reducing energy loss during energy conversion. This utilizes solar energy to prevent liquid hammer in the compressor and reduce the air conditioner's energy consumption.

[0056] Figure 1 This is a flow chart of the control method of the air conditioner provided by the present invention. Figure 1 The control method of the air conditioner of the present invention is described. Figure 1 As shown, the method includes: step 101, when the compressor in the air conditioner is started, obtaining the operating mode of the air conditioner.

[0057] It should be noted that the execution subject of the embodiment of the present invention is a control device of an air conditioner.

[0058] Typically, users can control the air conditioner's compressor to start cooling or heating, or to shut down the air conditioner based on actual needs. User control of the air conditioner can be based on control commands input by the user. For example, a controller in the air conditioner can receive a first control command input by the user and, in response to the first control command, start the air conditioner's compressor; or, the controller can receive a second control command input by the user and, in response to the second control command, shut down the air conditioner.

[0059] It should be noted that user input can be expressed as touch input on the target interface, which may include but is not limited to click input, sliding input, and press input. User input can also be expressed as physical button input. User input can also be expressed as voice input. The target interface can be the display interface of the user terminal or the control interface of the air conditioner. The physical button can be located on the air conditioner body or on an external controller of the air conditioner.

[0060] It is understood that the above-mentioned inputs are exemplary examples, that is, the embodiments of the present application include but are not limited to the above-mentioned inputs. In actual implementation, the user input may also include any other possible inputs, which can be determined according to actual use requirements and are not limited in the embodiments of the present application.

[0061] In an embodiment of the present invention, when the compressor in the air conditioner is started, the operating mode of the air conditioner can be obtained in various ways, for example, by detecting a control instruction received by the air conditioner controller. The operating mode of the air conditioner includes a cooling mode and a heating mode.

[0062] Step 102: When the air conditioner is in cooling mode, start the solar heating device, control the first electrically controlled three-way valve to execute the first path, and control the second electrically controlled three-way valve to execute the second path.

[0063] Among them, the solar heating device is used to heat the inflowing refrigerant using solar energy; the first passage is the passage between the first port of the first electrically controlled three-way valve and the third port of the first electrically controlled three-way valve; the second passage is the passage between the first port of the second electrically controlled three-way valve and the second port of the second electrically controlled three-way valve; the first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator; the first port of the second electrically controlled three-way valve is connected to the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device.

[0064] Figure 2This is one of the structural diagrams of the air conditioner in the control method of the air conditioner provided by the present invention, such as Figure 2 As shown, the air conditioner 220 includes: a compressor 208 , a first electrically controlled three-way valve 202 , a second electrically controlled three-way valve 205 , a solar heating device 201 , an electronic expansion valve 209 , a condenser 218 , and an evaporator 219 .

[0065] The electronic expansion valve 209 can be used to throttle the inflowing refrigerant. The condenser 218 can be used to perform gas-liquid conversion on the inflowing refrigerant. The evaporator 219 can be used to perform liquid-gas conversion on the inflowing refrigerant.

[0066] Optionally, the air conditioner 220 further includes a four-way valve 221 .

[0067] The first electrically controlled three-way valve 202 includes three ports, namely: a first port 203 of the first electrically controlled three-way valve, a second port 214 of the first electrically controlled three-way valve, and a third port 204 of the first electrically controlled three-way valve.

[0068] The four-way valve 221 includes four ports, namely: a first port 222 of the four-way valve, a second port 223 of the four-way valve, a third port 224 of the four-way valve, and a fourth port 225 of the four-way valve.

[0069] The condenser 218 includes two ports: a first condenser port 226 and a second condenser port 227 .

[0070] The evaporator 219 includes two ports: a first evaporator port 228 and a second evaporator port 229 .

[0071] The first port 210 of the compressor is connected to the first port 222 of the four-way valve;

[0072] The second port 223 of the four-way valve is connected to the first port 226 of the condenser;

[0073] The second port 227 of the condenser is connected to the first port 203 of the first electrically controlled three-way valve;

[0074] The third port 204 of the first electrically controlled three-way valve is connected to the second port 217 of the solar heating device and one end of the electronic expansion valve 209 respectively;

[0075] The second port 214 of the first electrically controlled three-way valve is connected to the first port 216 of the solar heating device.

[0076] The other end of the electronic expansion valve 209 is connected to the first port 228 of the evaporator;

[0077] The second port 229 of the evaporator is connected to the third port 211 of the solar heating device and the third port 215 of the second electrically controlled three-way valve respectively;

[0078] The first port 206 of the second electrically controlled three-way valve is connected to the third port 224 of the four-way valve.

[0079] The second port 207 of the second electrically controlled three-way valve is connected to the fourth port 213 of the solar heating device;

[0080] The third port 215 of the second electrically controlled three-way valve is also connected to the third port 211 of the solar heating device;

[0081] The fourth port 225 of the four-way valve is connected to the second port 212 of the compressor.

[0082] When the operating mode of the compressor 208 and the air conditioner 220 is the cooling mode, the solar heating device 201 can be controlled to start, and the first electrically controlled three-way valve 202 can be controlled to select the first port 203 of the first electrically controlled three-way valve and the third port 204 of the first electrically controlled three-way valve, and the second electrically controlled three-way valve 205 can be controlled to select the first port 206 of the second electrically controlled three-way valve and the second port 207 of the second electrically controlled three-way valve.

[0083] It should be noted that, in the embodiment of the present invention, the solar heating device 201 can be started through a control instruction.

[0084] In the embodiment of the present invention, control instructions can also be used to control the first electrically controlled three-way valve 202 to select the first port 203 of the first electrically controlled three-way valve and the third port 204 of the first electrically controlled three-way valve, and control the second electrically controlled three-way valve 205 to select the first port 206 of the second electrically controlled three-way valve and the second port 207 of the second electrically controlled three-way valve.

[0085] After the first electrically controlled three-way valve 202 executes the first path and the second electrically controlled three-way valve 205 executes the second path, the refrigerant flows out of the compressor 208 through the first port 210 of the compressor, and flows into the condenser 218 through the first port 222 of the four-way valve, the second port 223 of the four-way valve and the first port 226 of the condenser.

[0086] After the condenser 218 performs gas-liquid conversion on the incoming refrigerant, the refrigerant flows out of the condenser 218 through the second port 227 of the condenser, and flows into the evaporator 219 through the first port 203 of the first electrically controlled three-way valve, the third port 204 of the first electrically controlled three-way valve, the electronic expansion valve 209 and the first port 228 of the evaporator.

[0087] After the evaporator 219 performs liquid-gas conversion on the incoming refrigerant, the low-temperature and low-pressure refrigerant flows into the solar heating device 201 through the second port 229 of the evaporator and the third port 211 of the solar heating device.

[0088] The solar heating device 201 can use solar energy to heat the incoming refrigerant to increase the temperature of the low-temperature and low-pressure refrigerant flowing through the evaporator 219, so that the saturated gas-liquid two-phase refrigerant can be converted into a gaseous refrigerant by absorbing solar heat.

[0089] The gaseous refrigerant can flow back to compressor 208 via the fourth port 213 of the solar heating device, the second port 207 of the second electrically controlled three-way valve, the first port 206 of the second electrically controlled three-way valve, the third port 224 of the four-way valve, the fourth port 225 of the four-way valve, and the second port 212 of the compressor, thereby completing the circulation of the refrigerant. This can effectively prevent liquid hammering of compressor 208 by liquid refrigerant and protect compressor 208. The refrigerant flowing back to compressor 208 through the above process can improve the efficiency of compressor 208 and reduce the energy consumption of air conditioner 220.

[0090] Step 103: When the operating time of the compressor 208 is greater than the first preset value, obtain a third temperature and a fourth temperature; wherein the third temperature is the temperature of the refrigerant at the third port 211 of the solar heating device; and the fourth temperature is the temperature of the refrigerant at the fourth port 213 of the solar heating device.

[0091] Specifically, the operating time of the compressor 208 is the time during which the compressor 208 continues to operate since the moment the compressor 208 is started.

[0092] In order to further reduce the energy consumption of the air conditioner 220 in the cooling mode, after the compressor 208 is started, the operating time of the compressor 208 can be monitored, and when the operating time of the compressor 208 is greater than the first preset value, the temperature of the refrigerant at the third port 211 of the solar heating device can be obtained as the third temperature, and the temperature of the refrigerant at the fourth port 213 of the solar heating device can be obtained as the fourth temperature, so that the first electrically controlled three-way valve 202, the second electrically controlled three-way valve 205, the frequency of the compressor 208 and the opening of the electronic expansion valve 209 can be controlled based on the above-mentioned third temperature and the above-mentioned fourth temperature.

[0093] It should be noted that the first preset value is determined based on prior knowledge. The specific value of the first preset value is not limited in the embodiment of the present invention.

[0094] Optionally, the value range of the first preset value may be between 2 minutes and 4 minutes, for example, the first preset value may be 2 minutes, 3 minutes or 4 minutes.

[0095] Preferably, the first preset value may be 3 minutes.

[0096] In an embodiment of the present invention, the third temperature and the fourth temperature can be obtained in a variety of ways. For example, a temperature sensor can be used to collect the temperature of the refrigerant at the third port 211 of the solar heating device as the third temperature, and to collect the temperature of the refrigerant at the fourth port 213 of the solar heating device as the fourth temperature.

[0097] It should be noted that the third temperature and the fourth temperature are dynamically changing.

[0098] Optionally, when the compressor 208 is started, the operation mode of the air conditioner 220 is the cooling mode, and the operation time of the compressor 208 is greater than the first preset value, the third temperature and the fourth temperature may be periodically obtained.

[0099] Step 104 : Based on the third temperature and the fourth temperature, control the first electrically controlled three-way valve 202 , the second electrically controlled valve 205 , the frequency of the compressor 208 , and the opening of the electronic expansion valve 209 .

[0100] Specifically, after obtaining the above-mentioned third temperature and the above-mentioned fourth temperature, conditional judgment can be performed based on the above-mentioned third temperature and the above-mentioned fourth temperature, and based on the result of the conditional judgment, the path executed by the first electrically controlled three-way valve 202 and the second electrically controlled valve 205 can be determined, as well as the frequency executed by the compressor 208 and the opening degree executed by the electronic expansion valve 209 can be determined.

[0101] The embodiment of the present invention starts the solar heating device when the compressor in the air conditioner is started and the operating mode of the air conditioner is the cooling mode, and controls the first electrically controlled three-way valve to execute the first path and controls the second electrically controlled three-way valve to execute the second path. Then, when the operating time of the compressor is greater than a first preset value, the third temperature and the fourth temperature are obtained, and based on the above-mentioned third temperature and fourth temperature, the frequency of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the compressor and the opening of the electronic expansion valve are controlled. Relying on the renewable and pollution-free characteristics of solar energy, solar energy is used to directly heat the refrigerant, effectively supplement the heat exchange capacity of the air conditioner, improve the efficiency of the compressor, reduce energy loss in the energy conversion process, use solar energy to prevent liquid hammer in the compressor, and reduce the energy consumption of the air conditioner.

[0102] Based on the contents of the above embodiments, when the compressor 208 in the air conditioner 220 is started, after obtaining the operating mode of the air conditioner 220, it also includes: when the operating mode of the air conditioner 220 is the heating mode, starting the solar heating device 201, and controlling the first electrically controlled three-way valve 202 to execute the third path, and controlling the second electrically controlled three-way valve 205 to execute the fourth path.

[0103] Among them, the third passage is the passage between the first port 203 of the first electrically controlled three-way valve and the second port 214 of the first electrically controlled three-way valve; the fourth passage is the passage between the first port 206 of the second electrically controlled three-way valve and the third port 215 of the second electrically controlled three-way valve; the second port 214 of the first electrically controlled three-way valve is connected to the first port 216 of the solar heating device; the third port 215 of the second electrically controlled three-way valve is connected to the second port 217 of the solar heating device through the electronic expansion valve 209 and the evaporator 219.

[0104] Specifically, when the compressor 208 is started and the operating mode of the air conditioner 220 is the heating mode, the solar heating device 201 can be controlled to start, and the first electrically controlled three-way valve 202 can be controlled to select the first port 203 of the first electrically controlled three-way valve and the second port 214 of the first electrically controlled three-way valve, and the second electrically controlled three-way valve 205 can be controlled to select the first port 206 of the second electrically controlled three-way valve and the third port 215 of the second electrically controlled three-way valve, so that when the compressor 208 is started and the operating mode of the air conditioner 220 is the heating mode, the solar heating device 201 can be started, and the first electrically controlled three-way valve 202 executes the third path and the second electrically controlled three-way valve 205 executes the fourth path.

[0105] It should be noted that, in the embodiment of the present invention, the solar heating device 201 can be started through a control instruction.

[0106] In the embodiment of the present invention, control instructions can also be used to control the first electrically controlled three-way valve 202 to select the first port 203 of the first electrically controlled three-way valve and the second port 214 of the first electrically controlled three-way valve, and control the second electrically controlled three-way valve 205 to select the first port 206 of the second electrically controlled three-way valve and the third port 215 of the second electrically controlled three-way valve.

[0107] After the first electrically controlled three-way valve 202 executes the third path and the second electrically controlled three-way valve 205 executes the fourth path, the refrigerant flows out of the compressor 208 through the second port 212 of the compressor and flows into the evaporator 219 through the fourth port 225 of the four-way valve, the third port 224 of the four-way valve and the second port 229 of the evaporator.

[0108] After the evaporator 219 converts the incoming refrigerant into liquid-gas, the low-temperature and low-pressure refrigerant flows into the solar heating device 201 through the first port 228 of the evaporator, the electronic expansion valve 209 and the second port 217 of the solar heating device.

[0109] The solar heating device 201 can use solar energy to heat the incoming refrigerant to increase the temperature of the low-temperature, low-pressure refrigerant flowing in through the evaporator 219 and the electronic expansion valve 209. The saturated gas-liquid two-phase refrigerant can be converted into a gaseous refrigerant by absorbing solar heat, and the temperature of the refrigerant can be increased.

[0110] The gaseous refrigerant flows into the condenser 218 through the first port 216 of the solar heating device, the second port 214 of the first electrically controlled three-way valve, the first port 203 of the first electrically controlled three-way valve, and the second port 227 of the condenser.

[0111] The condenser 218 can convert the above-mentioned gaseous refrigerant flowing into it into gas-liquid. Since the solar heating device 201 can increase the temperature of the refrigerant when the refrigerant passes through the solar heating device 201, the refrigerant with increased temperature flows into the condenser 218, which can improve the heat exchange efficiency of the condenser 218 for the refrigerant.

[0112] After condenser 218 converts the incoming refrigerant into gas-liquid form, the refrigerant flows out of condenser 218 through first port 226 of the condenser and flows back to compressor 208 through second port 223 of the four-way valve, first port 222 of the four-way valve, and first port 210 of the compressor, thereby completing the refrigerant circulation flow. This effectively prevents liquid hammering of compressor 208 by the liquid refrigerant and protects compressor 208. The refrigerant returns to compressor 208 through the above process, which improves the efficiency of compressor 208 and reduces the energy consumption of air conditioner 220.

[0113] When the operating time of the compressor is greater than a second preset value, the first temperature, the second temperature and the fourth temperature are obtained; wherein the first temperature is the temperature of the refrigerant at the first port of the solar heating device; the second temperature is the temperature of the refrigerant at the second port of the solar heating device.

[0114] Specifically, in order to further reduce the energy consumption of the air conditioner 220 in the heating mode, after the compressor 208 is started, the operating time of the compressor 208 can be monitored, and when the operating time of the compressor 208 is greater than the second preset value, the temperature of the refrigerant at the first port 216 of the solar heating device can be obtained as the first temperature, the temperature of the refrigerant at the second port 217 of the solar heating device can be obtained as the second temperature, and the temperature of the refrigerant at the fourth port 213 of the solar heating device can be obtained as the fourth temperature, so that the first electrically controlled three-way valve 202, the second electrically controlled three-way valve 205, the frequency of the compressor 208 and the opening of the electronic expansion valve 209 can be controlled based on the above-mentioned first temperature, the above-mentioned second temperature and the above-mentioned fourth temperature.

[0115] It should be noted that the second preset value is determined based on prior knowledge. The specific value of the second preset value is not limited in the embodiment of the present invention.

[0116] Optionally, the value range of the second preset value may be between 2 minutes and 4 minutes, for example, the second preset value may be 2 minutes, 3 minutes or 4 minutes.

[0117] Preferably, the second preset value may be 3 minutes.

[0118] Optionally, the first preset value may be the same as or different from the second preset value.

[0119] In an embodiment of the present invention, the first temperature, the second temperature and the fourth temperature can be obtained in a variety of ways. For example, a temperature sensor can be used to collect the temperature of the refrigerant at the first port 216 of the solar heating device as the first temperature, the temperature of the refrigerant at the second port 217 of the solar heating device as the second temperature, and the temperature of the refrigerant at the fourth port 213 of the solar heating device as the fourth temperature.

[0120] It should be noted that the first temperature, the second temperature and the fourth temperature are dynamically changing.

[0121] Optionally, when the compressor 208 is started, the operating mode of the air conditioner 220 is the heating mode and the operating time of the compressor 208 is greater than the second preset value, the first temperature, the second temperature and the fourth temperature can also be periodically obtained.

[0122] Based on the first temperature, the second temperature, and the fourth temperature, the first electrically controlled three-way valve 202 , the second electrically controlled three-way valve 205 , the frequency of the compressor 208 , and the opening of the electronic expansion valve 209 are controlled.

[0123] Specifically, after obtaining the first temperature, the second temperature and the fourth temperature, conditional judgment can be performed based on the first temperature, the second temperature and the fourth temperature, and based on the result of the conditional judgment, the path executed by the first electrically controlled three-way valve 202 and the second electrically controlled valve 205 can be determined, as well as the frequency executed by the compressor 208 and the opening degree executed by the electronic expansion valve 209 can be determined.

[0124] The embodiment of the present invention starts the solar heating device when the compressor in the air conditioner is started and the operating mode of the air conditioner is the heating mode, controls the first electrically controlled three-way valve to execute the third path, and controls the second electrically controlled three-way valve to execute the fourth path. Then, when the operating time of the compressor is greater than a second preset value, the first temperature, the second temperature, and the fourth temperature are obtained, and based on the above-mentioned first temperature, second temperature, and fourth temperature, the frequency of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the compressor, and the opening of the electronic expansion valve are controlled. Relying on the renewable and pollution-free characteristics of solar energy, when the air conditioner is operating in the heating mode, the refrigerant is directly heated by solar energy, thereby effectively supplementing the heat exchange capacity of the air conditioner, improving the efficiency of the compressor, reducing energy loss in the energy conversion process, preventing liquid hammer in the compressor by using solar energy, and reducing the energy consumption of the air conditioner.

[0125] Based on the contents of the above embodiments, based on the third temperature and the fourth temperature, the frequencies of the first electrically controlled three-way valve 202, the second electrically controlled valve 205, the compressor 208 and the opening of the electronic expansion valve 209 are controlled, including: when the third temperature and the fourth temperature meet the first preset condition, controlling the first electrically controlled three-way valve 202 to execute the third path, controlling the second electrically controlled three-way valve 205 to execute the fourth path, controlling the compressor 208 to execute the first frequency and controlling the electronic expansion valve 209 to execute the first opening.

[0126] When the third temperature and the fourth temperature do not meet the first preset condition, the first electrically controlled three-way valve 202 is controlled to execute the first path, the second electrically controlled three-way valve 205 is controlled to execute the second path, the compressor 208 is controlled to execute the original frequency, and the electronic expansion valve 209 is controlled to execute the original opening.

[0127] The first frequency is smaller than the original frequency; and the first opening is larger than the original opening.

[0128] Specifically, after obtaining the third temperature and the fourth temperature, it may be determined whether the third temperature and the fourth temperature meet a first preset condition.

[0129] It is understood that the heating effect of the solar heating device 201 on the incoming refrigerant is positively correlated with the solar thermal radiation energy. When the solar thermal radiation energy is high, the solar heating device 201 has a better heating effect on the incoming refrigerant; when the solar thermal radiation energy is low, the solar heating device 201 has a poor heating effect on the incoming refrigerant. The solar thermal radiation energy is related to the season and weather. For example, the solar thermal radiation energy on a sunny day is greater than that on a cloudy day; and the solar thermal radiation energy in summer is greater than that in winter.

[0130] In the embodiment of the present invention, the heating effect of the solar heating device 201 on the inflowing refrigerant can be determined by judging whether the third temperature and the fourth temperature meet the first preset condition.

[0131] If the above-mentioned third temperature and the above-mentioned fourth temperature meet the first preset condition, it can be explained that the heating effect of the solar heating device 201 on the inflowing refrigerant does not achieve the expected effect, and the temperature of the refrigerant flowing out of the solar heating device 201 is lower than the expected temperature. At this time, the first electrically controlled three-way valve 202 can be controlled to execute the third path, the second electrically controlled three-way valve 205 can be controlled to execute the fourth path, and the frequency of the compressor 208 can be reduced and the opening of the electronic expansion valve 209 can be increased to avoid the adverse effects that may be caused by the solar heating device 201 not achieving the expected heating effect on the inflowing refrigerant.

[0132] It should be noted that the frequency executed by the compressor 208 after startup is the original frequency, and the opening degree executed by the electronic expansion valve 209 is the original opening degree.

[0133] If the third temperature and the fourth temperature do not satisfy the first preset condition, it can be indicated that the solar heating device 201 has achieved the expected heating effect on the inflowing refrigerant, and the temperature of the refrigerant flowing out of the solar heating device 201 is not lower than the expected temperature. In this case, there is no need to increase the cooling capacity of the air conditioner 220. When the first electrically controlled three-way valve 202 has executed the first path and the second electrically controlled three-way valve 205 has executed the second path, there is no need to control the first and second electrically controlled three-way valves 202, 205. When the first electrically controlled three-way valve 202 executes the third path and the second electrically controlled three-way valve 205 executes the fourth path, the first electrically controlled three-way valve 202 is controlled to execute the first path, and the second electrically controlled three-way valve 205 is controlled to execute the second path.

[0134] It can be understood that the paths executed by the first electrically controlled three-way valve 202 and the second electrically controlled three-way valve 205 in the embodiment of the present invention, as well as the frequency of the compressor 208 and the opening of the electronic expansion valve 209, change dynamically according to whether the above-mentioned third temperature and the above-mentioned fourth temperature meet the first preset condition.

[0135] It should be noted that the first preset condition is determined based on prior knowledge. For example, the first preset condition may include that the fourth temperature is not greater than the third temperature; or the first preset condition may also include that the fourth temperature is not greater than the product of the third temperature and a preset ratio. In the embodiments of the present invention, the first preset condition is not specifically limited.

[0136] It should be noted that the first frequency and the first opening can be predetermined based on prior knowledge or determined based on the third temperature and the fourth temperature. The specific values ​​of the first frequency and the first opening are not limited in the embodiment of the present invention.

[0137] The embodiment of the present invention controls the first electrically controlled three-way valve to execute the third path, controls the second electrically controlled three-way valve to execute the fourth path, controls the compressor to execute the first frequency, and controls the electronic expansion valve to execute the first opening when the third temperature and the fourth temperature meet the first preset condition; and controls the first electrically controlled three-way valve to execute the first path, controls the second electrically controlled three-way valve to execute the second path, controls the compressor to execute the original frequency, and controls the electronic expansion valve to execute the original opening when the third temperature and the fourth temperature do not meet the first preset condition. This can improve the cooling capacity of the air conditioner when the heating effect of the solar heating device on the inflowing refrigerant does not achieve the expected effect, thereby ensuring that the air conditioner reduces energy consumption while maintaining a stable cooling effect.

[0138] Based on the contents of the above embodiments, the first preset condition includes: the fourth temperature is not greater than the third temperature.

[0139] In the embodiment of the present invention, the first preset condition includes that the fourth temperature is not greater than the third temperature, which can more simply and efficiently determine whether the heating effect of the solar heating device on the inflowing refrigerant reaches the expected effect.

[0140] Based on the contents of the above embodiments, the first frequency and the first opening degree are determined based on the third temperature and the fourth temperature.

[0141] Specifically, based on the third temperature and the fourth temperature, the first frequency and the first opening degree can be determined by numerical calculation.

[0142] Alternatively, the difference between the third temperature and the fourth temperature may be used as a first reduction amount of the frequency of the compressor 208 , and the difference between the original frequency of the compressor 208 and the first reduction amount may be used as the first frequency.

[0143] Optionally, the product of the first reduction amount and a fourth preset value may be used as the increase in the opening of the electronic expansion valve 209, and the sum of the increase and the original opening may be used as the first opening. The fourth preset value may range from 4 to 6, for example, 4, 5, or 6.

[0144] Preferably, the fourth preset value may be 5.

[0145] In the embodiment of the present invention, the first frequency and the first opening are determined based on the third temperature and the fourth temperature. When the solar heating device fails to achieve the expected heating effect on the inflowing refrigerant, the frequency of the compressor can be more flexibly reduced and the opening of the electronic expansion valve can be increased according to actual conditions.

[0146] Based on the contents of the above embodiments, based on the third temperature and the fourth temperature, the frequencies of the first electrically controlled three-way valve 202, the second electrically controlled valve 205, the compressor 208 and the opening of the electronic expansion valve 209 are controlled, including: when the first temperature, the second temperature and the fourth temperature meet the second preset condition, the first electrically controlled three-way valve 202 is controlled to execute the first path, the second electrically controlled three-way valve 205 is controlled to execute the second path, the compressor 208 is controlled to be reduced to execute the second frequency, and the electronic expansion valve 209 is controlled to execute the second opening.

[0147] When the first temperature, the second temperature and the fourth temperature do not meet the second preset condition, the first electrically controlled three-way valve 202 is controlled to execute the third path, the second electrically controlled three-way valve 205 is controlled to execute the fourth path, the compressor 208 is controlled to execute the original frequency, and the electronic expansion valve 209 is controlled to execute the original opening.

[0148] The second frequency is smaller than the original frequency; and the second opening is smaller than the original opening.

[0149] Specifically, after obtaining the first temperature, the second temperature, and the fourth temperature, it can be determined whether the first temperature, the second temperature, and the fourth temperature meet the second preset condition.

[0150] In the embodiment of the present invention, the heating effect of the solar heating device 201 on the inflowing refrigerant can be determined by judging whether the first temperature, the second temperature, and the fourth temperature meet the second preset condition.

[0151] If the above-mentioned first temperature, second temperature and fourth temperature meet the second preset condition, it can be explained that the heating effect of the solar heating device 201 on the inflowing refrigerant exceeds the expected effect, and the temperature of the refrigerant flowing out of the solar heating device 201 is higher than the warning temperature. At this time, the first electrically controlled three-way valve 202 can be controlled to execute the first path, the second electrically controlled three-way valve 205 can be controlled to execute the second path, and the compressor 208 can be controlled to execute the second frequency and the electronic expansion valve 209 can be controlled to execute the second opening to avoid the adverse effects that may be caused by the solar heating device 201 heating the inflowing refrigerant exceeding the expected effect.

[0152] If the first, second, and fourth temperatures do not satisfy the second preset condition, it can be understood that the heating effect of the incoming refrigerant by the solar heating device 201 has not exceeded the expected effect, and the temperature of the refrigerant flowing out of the solar heating device 201 is not higher than the warning temperature. Therefore, there is no need to increase the heating capacity of the air conditioner 220. If the first electrically controlled three-way valve 202 has already executed the third path and the second electrically controlled three-way valve 205 has already executed the fourth path, there is no need to control the first and second electrically controlled three-way valves 202, 205. If the first electrically controlled three-way valve 202 has already executed the first path and the second electrically controlled three-way valve 205 has already executed the second path, the first electrically controlled three-way valve 202 is controlled to execute the third path, and the second electrically controlled three-way valve 205 is controlled to execute the fourth path.

[0153] It can be understood that the paths executed by the first electrically controlled three-way valve 202 and the second electrically controlled three-way valve 205 in the embodiment of the present invention, as well as the frequency of the compressor 208 and the opening of the electronic expansion valve 209, change dynamically according to whether the above-mentioned first temperature, second temperature and fourth temperature meet the second preset condition.

[0154] It should be noted that the second preset condition is determined based on prior knowledge. In the embodiment of the present invention, the first preset condition is not specifically limited.

[0155] It should be noted that the second frequency and the second opening can be predetermined based on prior knowledge or determined based on the first temperature, the second temperature, and the fourth temperature. The specific values ​​of the second frequency and the second opening are not limited in the embodiment of the present invention.

[0156] The embodiment of the present invention controls the first electrically controlled three-way valve to execute the first path, controls the second electrically controlled three-way valve to execute the second path, controls the compressor to execute the second frequency, and controls the electronic expansion valve to execute the second opening when the first temperature, the second temperature, and the fourth temperature meet the second preset condition; and controls the first electrically controlled three-way valve to execute the third path, controls the second electrically controlled three-way valve to execute the fourth path, controls the compressor to execute the original frequency, and controls the electronic expansion valve to execute the original opening when the first temperature, the second temperature, and the fourth temperature do not meet the second preset condition. This can improve the heating capacity of the air conditioner when the heating effect of the solar heating device on the inflowing refrigerant exceeds the expected effect, thereby ensuring that the air conditioner reduces energy consumption while maintaining a stable heating effect.

[0157] Based on the contents of the above embodiments, the second preset condition includes: the second temperature is not greater than the first temperature, the first temperature is not greater than the fourth temperature, and the fourth temperature is not less than the third preset value.

[0158] Optionally, the third preset value may range from 50°C to 70°C, for example, the third preset value may be 50°C, 60°C or 70°C.

[0159] Preferably, the third preset value may be 60°C.

[0160] In the embodiment of the present invention, the second preset condition includes that the second temperature is not greater than the first temperature, the first temperature is not greater than the fourth temperature, and the fourth temperature is not less than the third preset value, which can more simply and efficiently determine whether the heating effect of the solar heating device on the inflowing refrigerant exceeds the expected effect.

[0161] Based on the contents of the above embodiments, the second frequency and the second opening degree are determined based on the first temperature, the second temperature and the third temperature.

[0162] Specifically, based on the first temperature, the second temperature, and the fourth temperature, the second frequency and the second opening degree may be determined by numerical calculation.

[0163] Optionally, the difference between the second temperature and the first temperature may be used as the amount of reduction in the opening of the electronic expansion valve 209 , and the difference between the original opening and the amount of reduction may be used as the second opening.

[0164] Alternatively, the quotient of the reduction amount and the fifth preset value may be rounded up to an integer to be used as the second reduction amount for the frequency of the compressor 208, and the difference between the original frequency of the compressor 208 and the second reduction amount may be used as the second frequency. The fifth preset value may range from 4 to 6, for example, 4, 5, or 6.

[0165] Preferably, the fifth preset value may be 5.

[0166] In the embodiment of the present invention, the second frequency and the second opening are determined based on the first temperature, the second temperature and the fourth temperature. When the heating effect of the solar heating device on the inflowing refrigerant exceeds the expected effect, the frequency of the compressor can be more flexibly reduced and the opening of the electronic expansion valve can be reduced according to actual conditions.

[0167] Based on the contents of the above embodiments, after controlling the first electrically controlled three-way valve 202, the second electrically controlled valve 205, the frequency of the compressor 208 and the opening of the electronic expansion valve 209 based on the third temperature and the fourth temperature, it also includes: when the air conditioner 220 is shut down, turning off the solar heating device 201, and controlling the first electrically controlled three-way valve 202 to execute the first path, and controlling the second electrically controlled three-way valve 205 to execute the fourth path.

[0168] In the embodiment of the present invention, when the air conditioner is shut down in cooling mode, the solar heating device is turned off, and the first electrically controlled three-way valve is controlled to execute the first path, and the second electrically controlled three-way valve is controlled to execute the fourth path. This ensures that when the air conditioner is shut down, the solar heating device is not connected to the refrigerant circulation circuit, which can protect the air conditioner.

[0169] Based on the contents of the above embodiments, after controlling the first electrically controlled three-way valve 202, the second electrically controlled three-way valve 205, the frequency of the compressor 208 and the opening of the electronic expansion valve 209 based on the first temperature, the second temperature and the fourth temperature, it also includes: when the air conditioner 220 is shut down, turning off the solar heating device 201, and controlling the first electrically controlled three-way valve 202 to execute the first path, and controlling the second electrically controlled three-way valve 205 to execute the fourth path.

[0170] In the embodiment of the present invention, when the air conditioner is shut down in the heating mode, the solar heating device is turned off, and the first electrically controlled three-way valve is controlled to execute the first path, and the second electrically controlled three-way valve is controlled to execute the fourth path. This ensures that when the air conditioner is shut down, the solar heating device is not connected to the refrigerant circulation circuit, thereby protecting the air conditioner.

[0171] In order to facilitate understanding of the control method of the air conditioner provided by the present invention, the control method of the air conditioner provided by the present invention is described below through an example. Figure 3 This is the second flow chart of the air conditioner control method provided by the present invention.

[0172] After the compressor 208 in the air conditioner 220 is started, the operating mode of the air conditioner 220 is obtained.

[0173] When the operating mode of the air conditioner 220 is the cooling mode, the solar heating device 201 is started, the first electrically controlled three-way valve 202 is controlled to select the first port 203 of the first electrically controlled three-way valve and the third port 204 of the first electrically controlled three-way valve, and the second electrically controlled three-way valve 205 is controlled to select the first port 206 of the second electrically controlled three-way valve and the second port 207 of the second electrically controlled three-way valve, so that the first electrically controlled three-way valve 202 executes the first path and the second electrically controlled three-way valve 205 executes the second path.

[0174] It is determined whether the operating time of the compressor 208 is greater than 3 minutes.

[0175] If the running time of the compressor 208 is greater than 3 minutes, the temperature of the refrigerant at the third port 211 of the solar heating device in the current cycle is obtained as the third temperature T3 of the current cycle, and the temperature of the refrigerant at the fourth port 213 of the solar heating device in the current cycle is obtained as the fourth temperature T4 of the current cycle.

[0176] Determine whether the current period T3 is greater than or equal to T4.

[0177] If the current cycle T3 is greater than or equal to T4, the first electrically controlled three-way valve 202 is controlled to execute the third path, the second electrically controlled three-way valve 205 is controlled to execute the fourth path, the compressor 208 is controlled to execute the first frequency, and the electronic expansion valve 209 is controlled to execute the first opening; if the current cycle T3 is less than T4, the first electrically controlled three-way valve 202 is controlled to execute the first path, the second electrically controlled three-way valve 205 is controlled to execute the second path, the compressor 208 is controlled to execute the original frequency, and the electronic expansion valve 209 is controlled to execute the original opening.

[0178] It can be understood that the path executed by the first electrically controlled three-way valve 202 and the second electrically controlled three-way valve 205 of the air conditioner 220 in the cooling mode, as well as the frequency of the compressor 208 and the opening of the electronic expansion valve 209, change dynamically according to whether the third temperature T3 of the current cycle is greater than or equal to the fourth temperature T4.

[0179] If the third temperature T3 of the previous cycle is greater than or equal to the fourth temperature T4, then when entering the current cycle, the first electrically controlled three-way valve 202 executes the third path, the second electrically controlled three-way valve 205 executes the fourth path, the compressor 208 is controlled to execute the first frequency, and the electronic expansion valve 209 is controlled to execute the first opening. If the third temperature T3 of the current cycle is not greater than or equal to the fourth temperature T4, the first electrically controlled three-way valve 202 can be controlled to execute the first path, the second electrically controlled three-way valve 205 can be controlled to execute the second path, the compressor 208 can be controlled to execute the original frequency, and the electronic expansion valve 209 can be controlled to execute the original opening. If the third temperature T3 of the next cycle is greater than or equal to the fourth temperature T4, the first electrically controlled three-way valve 202 can continue to be controlled to execute the third path, the second electrically controlled three-way valve 205 can continue to be controlled to execute the fourth path, the compressor 208 can be controlled to execute the first frequency, and the electronic expansion valve 209 can be controlled to execute the first opening, and so on.

[0180] It should be noted that the first frequency = original frequency - first reduction amount, the first opening = first + increase amount, increase amount = first reduction amount × 5, and the first reduction amount = T3 - T4.

[0181] When the operating mode of the air conditioner 220 is the heating mode, the solar heating device 201 is started, the first electrically controlled three-way valve 202 is controlled to select the first port 203 of the first electrically controlled three-way valve and the second port 214 of the first electrically controlled three-way valve, and the second electrically controlled three-way valve 205 is controlled to select the first port 206 of the second electrically controlled three-way valve and the third port 215 of the second electrically controlled three-way valve, so that the first electrically controlled three-way valve 202 executes the third path and the second electrically controlled three-way valve 205 executes the fourth path.

[0182] It is determined whether the operating time of the compressor 208 is greater than 3 minutes.

[0183] If the running time of the compressor 208 is greater than 3 minutes, the temperature of the refrigerant at the first port 216 of the solar heating device in the current cycle can be obtained as the first temperature T1 of the current cycle, the temperature of the refrigerant at the second port 217 of the solar heating device in the current cycle can be obtained as the second temperature T2 of the current cycle, and the temperature of the refrigerant at the fourth port 213 of the solar heating device in the current cycle can be obtained as the fourth temperature T4 of the current cycle.

[0184] It is determined whether the first temperature T1, the second temperature T2, and the fourth temperature T4 of the current cycle satisfy T2≤T1≤T4 and T4≥60°C.

[0185] If the first temperature T1, the second temperature T2 and the fourth temperature T4 of the current cycle satisfy T2≤T1≤T4 and T4≥60℃, the first electrically controlled three-way valve 202 is controlled to execute the first path, the second electrically controlled three-way valve 205 is controlled to execute the second path, the compressor 208 is controlled to execute the second frequency, and the electronic expansion valve 209 is controlled to execute the second opening; if the first temperature T1, the second temperature T2 and the fourth temperature T4 of the current cycle do not satisfy T2≤T1≤T4 and T4≥60℃, the first electrically controlled three-way valve 202 is controlled to execute the third path, the second electrically controlled three-way valve 205 is controlled to execute the fourth path, the compressor 208 is controlled to execute the original frequency, and the electronic expansion valve 209 is controlled to execute the original opening.

[0186] It can be understood that the path executed by the first electrically controlled three-way valve 202 and the second electrically controlled three-way valve 205 of the air conditioner 220 in the heating mode, as well as the frequency of the compressor 208 and the opening of the electronic expansion valve 209, change dynamically according to whether the current cycle satisfies T2≤T1≤T4 and T4≥60℃.

[0187] If the previous cycle satisfies T2≤T1≤T4 and T4≥60°C, then when entering the current cycle, the first electrically controlled three-way valve 202 executes the first path, the second electrically controlled three-way valve 205 executes the second path, the compressor 208 is controlled to execute the second frequency, and the electronic expansion valve 209 is controlled to execute the second opening. If the current cycle does not satisfy T2≤T1≤T4 and T4≥60°C, the first electrically controlled three-way valve 202 can be controlled to execute the third path, the second electrically controlled three-way valve 205 can be controlled to execute the fourth path, the compressor 208 can be controlled to execute the original frequency, and the electronic expansion valve 209 can be controlled to execute the original opening. If the next cycle satisfies T2≤T1≤T4 and T4≥60°C, the first electrically controlled three-way valve 202 can continue to be controlled to execute the first path, the second electrically controlled three-way valve 205 can continue to be controlled to execute the second path, the compressor 208 can be controlled to execute the second frequency, and the electronic expansion valve 209 can be controlled to execute the second opening, and so on.

[0188] It should be noted that the second opening = original opening - reduction, the second frequency = original frequency - second reduction, the second reduction = rounding up (reduction ÷ 5), and the reduction = T2 - T1.

[0189] It should be noted that the periodic duration for periodically acquiring the first temperature T1, the second temperature T2, the third temperature T3, and the fourth temperature T4 can be determined according to actual conditions, for example, the periodic duration can be 5 minutes. The specific value of the periodic duration is not limited in the embodiment of the present invention.

[0190] Figure 4 This is a schematic diagram of the structure of the control device of the air conditioner provided by the present invention. Figure 4 The control device of the air conditioner provided by the present invention is described. The control device of the air conditioner described below and the control method of the air conditioner provided by the present invention described above can be referred to each other. Figure 4 As shown, the device includes: an operation mode acquisition module 401 , a first control module 402 , a temperature acquisition module 403 and a second control module 404 .

[0191] The operation mode acquisition module 401 is used to acquire the operation mode of the air conditioner 220 when the compressor 208 in the air conditioner 220 is started.

[0192] The first control module 402 is used to start the solar heating device 201 when the operating mode of the air conditioner 220 is the cooling mode, and control the first electrically controlled three-way valve 202 to execute the first path and control the second electrically controlled three-way valve 205 to execute the second path.

[0193] The temperature acquisition module 403 is configured to acquire a third temperature and a fourth temperature when the operating time of the compressor 208 is greater than a first preset value.

[0194] The second control module 404 is configured to control the first electrically controlled three-way valve 202 , the second electrically controlled three-way valve 205 , the frequency of the compressor 208 , and the opening of the electronic expansion valve 209 based on the third temperature and the fourth temperature.

[0195] Among them, the solar heating device 201 is used to heat the inflowing refrigerant using solar energy; the first passage is the passage between the first port 203 of the first electrically controlled three-way valve and the third port 204 of the first electrically controlled three-way valve; the second passage is the passage between the first port 206 of the second electrically controlled three-way valve and the second port 207 of the second electrically controlled three-way valve; the first port 203 of the first electrically controlled three-way valve is connected to the first port 210 of the compressor through the condenser 218, and the third port 204 of the first electrically controlled three-way valve is connected to the third port 211 of the solar heating device through the electronic expansion valve 209 and the evaporator 219; the first port 206 of the second electrically controlled three-way valve is connected to the second port 212 of the compressor, and the second port 207 of the second electrically controlled three-way valve is connected to the fourth port 213 of the solar heating device; the third temperature is the temperature of the refrigerant at the third port 211 of the solar heating device; the fourth temperature is the temperature of the refrigerant at the fourth port 213 of the solar heating device.

[0196] Specifically, the operation mode acquisition module 401 , the first control module 402 , the temperature acquisition module 403 and the second control module 404 are electrically connected.

[0197] Optionally, the first control module 402 may also be configured to start the solar heating device when the air conditioner is in the heating mode, and control the first electrically controlled three-way valve 202 to execute the third path, and control the second electrically controlled three-way valve 205 to execute the fourth path; the temperature acquisition module 403 may also be configured to acquire the first temperature, the second temperature, and the fourth temperature when the operating time of the compressor 208 is greater than the second preset value; the second control module 404 may also be configured to control the first electrically controlled three-way valve 202, the second electrically controlled three-way valve 205, the frequency of the compressor 208, and the opening of the electronic expansion valve 209 based on the first temperature, the second temperature, and the fourth temperature; wherein, The third passage is the passage between the first port 203 of the first electrically controlled three-way valve and the second port 214 of the first electrically controlled three-way valve; the fourth passage is the passage between the first port 206 of the second electrically controlled three-way valve and the third port 215 of the second electrically controlled three-way valve; the second port 214 of the first electrically controlled three-way valve is connected to the first port 216 of the solar heating device; the third port 215 of the second electrically controlled three-way valve is connected to the second port 217 of the solar heating device through the electronic expansion valve 209 and the evaporator 219; the first temperature is the temperature of the refrigerant at the first port 216 of the solar heating device; the second temperature is the temperature of the refrigerant at the second port 217 of the solar heating device.

[0198] Optionally, the second control module 404 can be specifically used to control the first electrically controlled three-way valve 202 to execute the third path, control the second electrically controlled three-way valve 205 to execute the fourth path, and control the compressor 208 to execute the first frequency and control the opening of the electronic expansion valve 209 to execute the first opening when the third temperature and the fourth temperature meet the first preset condition; when the third temperature and the fourth temperature do not meet the first preset condition, control the first electrically controlled three-way valve 202 to execute the first path, control the second electrically controlled three-way valve 205 to execute the second path, and control the frequency of the compressor 208 to execute the original frequency and control the opening of the electronic expansion valve 209 to execute the original opening; wherein, the first frequency is less than the original frequency; and the first opening is greater than the original opening.

[0199] The second control module 404 can also be specifically used to control the first electrically controlled three-way valve 202 to execute the first path, control the second electrically controlled three-way valve 205 to execute the second path, control the compressor 208 to execute the second frequency, and control the electronic expansion valve 209 to execute the second opening when the first temperature, the second temperature and the fourth temperature meet the second preset condition; when the first temperature, the second temperature and the fourth temperature do not meet the second preset condition, control the first electrically controlled three-way valve 202 to execute the third path, control the second electrically controlled three-way valve 205 to execute the fourth path, control the compressor 208 to execute the original frequency, and control the electronic expansion valve 209 to execute the original opening; wherein, the second frequency is less than the original frequency; and the second opening is less than the original opening.

[0200] The control device of the air conditioner in the embodiment of the present invention starts the solar heating device when the compressor in the air conditioner is started and the operating mode of the air conditioner is the cooling mode, and controls the first electrically controlled three-way valve to execute the first path and controls the second electrically controlled three-way valve to execute the second path. Then, when the operating time of the compressor is greater than a first preset value, the third temperature and the fourth temperature are obtained, and based on the above-mentioned third temperature and fourth temperature, the frequency of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the compressor and the opening of the electronic expansion valve are controlled. Relying on the renewable and pollution-free characteristics of solar energy, solar energy is used to directly heat the refrigerant, effectively supplement the heat exchange capacity of the air conditioner, improve the efficiency of the compressor, reduce energy loss in the energy conversion process, use solar energy to prevent liquid hammer in the compressor, and reduce the energy consumption of the air conditioner.

[0201] Based on the contents of the above embodiments, an air conditioner includes: an air conditioner body and a control processor of the air conditioner; the control processor of the air conditioner is connected to the air conditioner body; and also includes a memory and a program or instruction stored in the memory and executable on the control processor of the air conditioner, wherein when the program or instruction is executed by the control processor of the air conditioner, a control method for the air conditioner as described in any one of the above items is executed.

[0202] Figure 5 This is the second structural diagram of the air conditioner in the air conditioner control method provided by the present invention. Figure 5 As shown, the air conditioner body 501, the air conditioner control processor 502 and the memory 503 are electrically connected.

[0203] It should be noted that the air conditioner body 501 is equivalent to the air conditioner in the above embodiments. Figure 2 The specific structure of the air conditioner 220.

[0204] The control processor 502 of the air conditioner can control the air conditioner body 501 to achieve the technical effect of using solar energy to prevent liquid hammer from occurring in the compressor and reduce the energy consumption of the air conditioner.

[0205] The process of the air conditioner control processor controlling the air conditioner body can refer to the contents of any of the above embodiments, and will not be described in detail in the embodiments of the present invention.

[0206] The air conditioner in the embodiment of the present invention includes an air conditioner body and a control processor of the air conditioner. The control processing of the air conditioner starts the solar heating device when the compressor in the air conditioner body is started and the operating mode of the air conditioner body is the cooling mode, and controls the first electrically controlled three-way valve to execute the first path and controls the second electrically controlled three-way valve to execute the second path. Then, when the operating time of the compressor is greater than a first preset value, the third temperature and the fourth temperature are obtained, and based on the above-mentioned third temperature and fourth temperature, the frequency of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the compressor and the opening of the electronic expansion valve are controlled. Relying on the renewable and pollution-free characteristics of solar energy, the refrigerant is directly heated by solar energy, which effectively supplements the heat exchange capacity of the air conditioner body, improves the efficiency of the compressor, reduces energy loss in the energy conversion process, uses solar energy to prevent liquid hammer in the compressor, and reduces the energy consumption of the air conditioner body.

[0207] Based on the contents of the above embodiments, the air conditioner body includes: a compressor, an electronic expansion valve, a solar heating device, a first electrically controlled three-way valve, a second electrically controlled three-way valve, a condenser and an evaporator.

[0208] The first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator.

[0209] The first port of the second electrically controlled three-way valve is connected to the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device.

[0210] The solar heating device is used to heat the inflowing refrigerant using solar energy.

[0211] The air conditioner in the embodiment of the present invention can rely on the renewable and pollution-free characteristics of solar energy to directly heat the refrigerant using solar energy. When the air conditioner body is operating in cooling mode, the heat exchange capacity of the air conditioner body is effectively supplemented, the efficiency of the compressor can be improved, the energy loss during the energy conversion process can be reduced, and the solar energy can be used to prevent liquid hammer in the compressor, thereby reducing the energy consumption of the air conditioner body.

[0212] Based on the contents of the above embodiments, it includes: the second port of the first electrically controlled three-way valve is connected to the first port of the solar heating device; the third port of the second electrically controlled three-way valve is connected to the second port of the solar heating device through the electronic expansion valve and the evaporator.

[0213] The air conditioner in the embodiment of the present invention can rely on the renewable and pollution-free characteristics of solar energy to directly heat the refrigerant using solar energy. When the air conditioner body is operating in heating mode, the heat exchange capacity of the air conditioner body is effectively supplemented, the efficiency of the compressor can be improved, the energy loss during the energy conversion process can be reduced, and solar energy can be used to prevent liquid hammer in the compressor, thereby reducing the energy consumption of the air conditioner body.

[0214] Figure 6 An example of a physical structure diagram of an electronic device is shown below. Figure 6As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630, and a communication bus 640, wherein the processor 610, the communication interface 620, and the memory 630 communicate with each other via the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute a method for controlling an air conditioner, the method comprising: obtaining the operating mode of the air conditioner when the compressor in the air conditioner is started; when the operating mode of the air conditioner is the cooling mode, starting the solar heating device and controlling the first electrically controlled three-way valve to execute the first path and the second electrically controlled three-way valve to execute the second path; when the operating time of the compressor is greater than a first preset value, obtaining the third temperature and the fourth temperature; based on the third temperature and the fourth temperature, controlling the frequency of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the compressor, and the opening of the electronic expansion valve; wherein the solar heating device is used to heat the inflowing refrigerant using solar energy; The first passage is a passage between the first port of the first electrically controlled three-way valve and the third port of the first electrically controlled three-way valve; the second passage is a passage between the first port of the second electrically controlled three-way valve and the second port of the second electrically controlled three-way valve; the first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator; the first port of the second electrically controlled three-way valve is connected to the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device; the third temperature is the temperature of the refrigerant at the third port of the solar heating device; the fourth temperature is the temperature of the refrigerant at the fourth port of the solar heating device.

[0215] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0216] On the other hand, the present invention also provides a computer program product, which includes a computer program, which can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the air conditioner control method provided by the above methods, the method including: when the compressor in the air conditioner is started, obtaining the operating mode of the air conditioner; when the operating mode of the air conditioner is the cooling mode, starting the solar heating device, and controlling the first electrically controlled three-way valve to execute the first path, and controlling the second electrically controlled three-way valve to execute the second path; when the operating time of the compressor is greater than a first preset value, obtaining a third temperature and a fourth temperature; based on the third temperature and the fourth temperature, adjusting the frequency of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the compressor, and the opening of the electronic expansion valve for control; wherein the solar heating device is used to heat the inflowing refrigerant by using solar energy; the first passage is the passage between the first port of the first electrically controlled three-way valve and the third port of the first electrically controlled three-way valve; the second passage is the passage between the first port of the second electrically controlled three-way valve and the second port of the second electrically controlled three-way valve; the first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator; the first port of the second electrically controlled three-way valve is connected to the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device; the third temperature is the temperature of the refrigerant at the third port of the solar heating device; the fourth temperature is the temperature of the refrigerant at the fourth port of the solar heating device.

[0217] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method for an air conditioner provided by the above-mentioned methods, the method comprising: when the compressor in the air conditioner is started, obtaining the operating mode of the air conditioner; when the operating mode of the air conditioner is the cooling mode, starting the solar heating device, and controlling the first electrically controlled three-way valve to execute the first path, and controlling the second electrically controlled three-way valve to execute the second path; when the operating time of the compressor is greater than a first preset value, obtaining a third temperature and a fourth temperature; based on the third temperature and the fourth temperature, controlling the frequency of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the compressor, and the opening of the electronic expansion valve; wherein the solar heating device The device is used to heat the inflowing refrigerant by utilizing solar energy; the first passage is the passage between the first port of the first electrically controlled three-way valve and the third port of the first electrically controlled three-way valve; the second passage is the passage between the first port of the second electrically controlled three-way valve and the second port of the second electrically controlled three-way valve; the first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator; the first port of the second electrically controlled three-way valve is connected to the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device; the third temperature is the temperature of the refrigerant at the third port of the solar heating device; and the fourth temperature is the temperature of the refrigerant at the fourth port of the solar heating device.

[0218] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0219] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0220] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: include: When a compressor in the air conditioner is started, obtaining an operating mode of the air conditioner; When the operating mode of the air conditioner is cooling mode, starting the solar heating device, and controlling the first electrically controlled three-way valve to execute the first path, and controlling the second electrically controlled three-way valve to execute the second path; When the running time of the compressor is greater than a first preset value, obtaining a third temperature and a fourth temperature; Based on the third temperature and the fourth temperature, controlling the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve, including, when the third temperature and the fourth temperature meet a first preset condition, controlling the first electrically controlled three-way valve to execute a third path, controlling the second electrically controlled three-way valve to execute a fourth path, controlling the compressor to execute a first frequency, and controlling the opening of the electronic expansion valve to execute a first opening; Wherein, the solar heating device is used to heat the inflowing refrigerant by using solar energy; the first passage is the passage between the first port of the first electrically controlled three-way valve and the third port of the first electrically controlled three-way valve; the second passage is the passage between the first port of the second electrically controlled three-way valve and the second port of the second electrically controlled three-way valve; the first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator; the first port of the second electrically controlled three-way valve is connected to the second port of the compressor ... second electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator The second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device; the third temperature is the temperature of the refrigerant at the third port of the solar heating device; the fourth temperature is the temperature of the refrigerant at the fourth port of the solar heating device; the third passage is the passage between the first port of the first electrically controlled three-way valve and the second port of the first electrically controlled three-way valve; the fourth passage is the passage between the first port of the second electrically controlled three-way valve and the third port of the second electrically controlled three-way valve; the first preset condition includes: the fourth temperature is not greater than the third temperature; the first frequency is less than the original frequency; the first opening is greater than the original opening.

2. The air conditioner control method according to claim 1, characterized in that: When the compressor in the air conditioner is started, after obtaining the operating mode of the air conditioner, the method further includes: When the operating mode of the air conditioner is the heating mode, the solar heating device is started, and the first electrically controlled three-way valve is controlled to execute the third path, and the second electrically controlled three-way valve is controlled to execute the fourth path; When the running time of the compressor is greater than a second preset value, acquiring the first temperature, the second temperature and the fourth temperature; controlling the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve based on the first temperature, the second temperature, and the fourth temperature; Among them, the second port of the first electrically controlled three-way valve is connected to the first port of the solar heating device; the third port of the second electrically controlled three-way valve is connected to the second port of the solar heating device through the electronic expansion valve and the evaporator; the first temperature is the temperature of the refrigerant at the first port of the solar heating device; the second temperature is the temperature of the refrigerant at the second port of the solar heating device.

3. The air conditioner control method according to claim 1, wherein: The controlling of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve based on the third temperature and the fourth temperature includes: When the third temperature and the fourth temperature do not meet the first preset condition, the first electrically controlled three-way valve is controlled to execute the first path, the second electrically controlled three-way valve is controlled to execute the second path, the frequency of the compressor is controlled to execute the original frequency, and the opening of the electronic expansion valve is controlled to execute the original opening.

4. The air conditioner control method according to claim 2, characterized in that: The controlling of the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve based on the first temperature, the second temperature, and the fourth temperature includes: When the first temperature, the second temperature, and the fourth temperature meet a second preset condition, the first electrically controlled three-way valve is controlled to execute the first path, the second electrically controlled three-way valve is controlled to execute the second path, the compressor is controlled to be reduced to execute a second frequency, and the electronic expansion valve is controlled to execute a second opening degree; When the first temperature, the second temperature, and the fourth temperature do not satisfy the second preset condition, the first electrically controlled three-way valve is controlled to execute the third path, the second electrically controlled three-way valve is controlled to execute the fourth path, the compressor is controlled to be reduced to execute the original frequency, and the electronic expansion valve is controlled to execute the original opening degree; The second frequency is smaller than the original frequency; and the second opening is smaller than the original opening.

5. The air conditioner control method according to claim 3, characterized in that: The first frequency and the first opening degree are determined based on the third temperature and the fourth temperature.

6. The air conditioner control method according to claim 4, characterized in that: The second frequency and the second opening degree are determined based on the first temperature, the second temperature, and the third temperature.

7. The air conditioner control method according to claim 4, characterized in that: The second preset condition includes: the second temperature is not greater than the first temperature, the first temperature is not greater than the fourth temperature, and the fourth temperature is not less than a third preset value.

8. A control device for an air conditioner, characterized in that: include: An operating mode acquisition module, configured to acquire an operating mode of the air conditioner when a compressor in the air conditioner is started; a first control module, configured to activate the solar heating device when the operating mode of the air conditioner is the cooling mode, and control the first electrically controlled three-way valve to execute the first path, and control the second electrically controlled three-way valve to execute the second path; A temperature acquisition module, configured to acquire a third temperature and a fourth temperature when the running time of the compressor is greater than a first preset value; a second control module, configured to control the first electrically controlled three-way valve, the second electrically controlled three-way valve, the frequency of the compressor, and the opening of the electronic expansion valve based on the third temperature and the fourth temperature, including controlling the first electrically controlled three-way valve to execute a third path, controlling the second electrically controlled three-way valve to execute a fourth path, controlling the compressor to execute a first frequency, and controlling the opening of the electronic expansion valve to execute a first opening when the third temperature and the fourth temperature meet a first preset condition; Wherein, the solar heating device is used to heat the inflowing refrigerant by using solar energy; the first passage is the passage between the first port of the first electrically controlled three-way valve and the third port of the first electrically controlled three-way valve; the second passage is the passage between the first port of the second electrically controlled three-way valve and the second port of the second electrically controlled three-way valve; the first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator; the first port of the second electrically controlled three-way valve is connected to the second port of the compressor ... second electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator The second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device; the third temperature is the temperature of the refrigerant at the third port of the solar heating device; the fourth temperature is the temperature of the refrigerant at the fourth port of the solar heating device; the third passage is the passage between the first port of the first electrically controlled three-way valve and the second port of the first electrically controlled three-way valve; the fourth passage is the passage between the first port of the second electrically controlled three-way valve and the third port of the second electrically controlled three-way valve; the first preset condition includes: the fourth temperature is not greater than the third temperature; the first frequency is less than the original frequency; the first opening is greater than the original opening.

9. An air conditioner, characterized in that: include: Air conditioner body and air conditioner control processor; The control processor of the air conditioner is connected to the air conditioner body; it also includes a memory and a program or instruction stored in the memory and capable of running on the control processor of the air conditioner. When the program or instruction is executed by the control processor of the air conditioner, the control method of the air conditioner as described in any one of claims 1 to 7 is executed.

10. The air conditioner according to claim 9, characterized in that The air conditioner body includes: a compressor, an electronic expansion valve, a solar heating device, a first electrically controlled three-way valve, a second electrically controlled three-way valve, a condenser and an evaporator; The first port of the first electrically controlled three-way valve is connected to the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected to the third port of the solar heating device through the electronic expansion valve and the evaporator; The first port of the second electrically controlled three-way valve is connected to the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected to the fourth port of the solar heating device; The solar heating device is used to heat the inflowing refrigerant using solar energy.

11. The air conditioner according to claim 10, characterized in that include: The second port of the first electrically controlled three-way valve is connected to the first port of the solar heating device; the third port of the second electrically controlled three-way valve is connected to the second port of the solar heating device through the electronic expansion valve and the evaporator.

12. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the air conditioner control method according to any one of claims 1 to 7 is implemented.

13. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the air conditioner control method according to any one of claims 1 to 7 is implemented.

14. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the air conditioner control method according to any one of claims 1 to 7 is implemented.

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