Control method and device of air conditioner and air conditioner

Abstract

The application provides a control method and device of an air conditioner and the air conditioner, and the method comprises the following steps: acquiring an operation mode of the air conditioner when a compressor in the air conditioner is started; starting a solar heating device when the operation mode of the air conditioner is a refrigeration mode, controlling a first electric control three-way valve to select a first port and a third port of the first electric control three-way valve, controlling a second electric control three-way valve to select a first port and a second port of the second electric control three-way valve, reducing the frequency of the compressor in the air conditioner and reducing the opening degree of an electronic expansion valve in the air conditioner. The control method and device of the air conditioner and the air conditioner provided by the application can directly heat refrigerant by using solar energy, effectively supplement the heat exchange capacity of the air conditioner, improve the efficiency of the compressor, reduce the energy loss in the energy conversion process, prevent the compressor from being subjected to liquid strike by using solar energy, and reduce the energy consumption of the air conditioner.

Description

TECHNICAL FIELD

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

[0002] In modern life, an air conditioner is an essential device for indoor places. The air conditioner can control the indoor environment temperature to provide a comfortable living or working environment for users.

[0003] During the operation of the air conditioner, liquid refrigerant and / or lubricating liquid are sucked into the compressor cylinder along with the gas, which causes the damage of the compressor. In addition, the liquid refrigerant and / or lubricating liquid are not discharged in time after being sucked into the cylinder along with the gas, which causes the instantaneous high liquid pressure generated when the piston approaches the top dead center. This phenomenon is usually referred to as liquid strike phenomenon. The liquid strike phenomenon can cause damage to the compression force components in the compressor, such as valve pieces, pistons, connecting rods, crankshafts, and piston pins, etc. in a short time. It is of great significance to prevent the liquid strike phenomenon of the compressor to improve the operation stability of the air conditioner and reduce the damage risk of the compressor.

[0004] Generally, the conventional air conditioner is driven by electric energy. The conventional air conditioner can rely on electric energy to prevent the liquid strike phenomenon of the compressor. With the transformation of energy structure, clean energy has become a new direction for the development of household appliances. Therefore, how to use clean energy to prevent the liquid strike phenomenon of the compressor to reduce the energy consumption of the air conditioner is a technical problem to be solved in the field. SUMMARY

[0005] The present application provides a control method and device of an air conditioner and the air conditioner to solve the defect that the conventional air conditioner relies on electric energy to prevent the liquid strike phenomenon of the compressor and has high energy consumption. The present application uses clean energy to prevent the liquid strike phenomenon of the compressor to reduce the energy consumption of the air conditioner.

[0006] The present application provides a control method of an air conditioner, comprising:

[0007] In the case that the compressor in the air conditioner is started, the operating mode of the air conditioner is acquired;

[0008] In the case that the operating mode of the air conditioner is the refrigeration mode, a solar heating device is started, the first port and the third port of the first electrically controlled three-way valve are selected by the first electrically controlled three-way valve, the first port and the second port of the second electrically controlled three-way valve are selected by the second electrically controlled three-way valve, the frequency of the compressor in the air conditioner is reduced, and the opening of the electronic expansion valve in the air conditioner is reduced;

[0009] The solar heating device is used for heating the flowing refrigerant by using solar energy; the first port of the first electrically-controlled three-way valve is connected with the first port of the compressor through a condenser, and the third port of the first electrically-controlled three-way valve is connected with the third port of the solar heating device through the electronic expansion valve and an evaporator; the first port of the second electrically-controlled three-way valve is connected with the second port of the compressor, and the second port of the second electrically-controlled three-way valve is connected with the fourth port of the solar heating device.

[0010] According to the control method of the air conditioner provided by the application, when the compressor in the air conditioner is started, the operation mode of the air conditioner is acquired, and then the following steps are included:

[0011] When the operation mode of the air conditioner is the heating mode, the solar heating device is started, the first electrically-controlled three-way valve is controlled to select the first port and the second port of the first electrically-controlled three-way valve, the second electrically-controlled three-way valve is controlled to select the first port and the third port of the second electrically-controlled three-way valve, the frequency of the compressor is reduced, and the opening of the electronic expansion valve is increased.

[0012] The second port of the first electrically-controlled three-way valve is connected with the first port of the solar heating device; and the third port of the second electrically-controlled three-way valve is connected with the second port of the solar heating device through the electronic expansion valve and the evaporator.

[0013] According to the control method of the air conditioner provided by the application, when the operation mode of the air conditioner is the heating mode, the frequency of the compressor in the air conditioner is reduced, and the opening of the electronic expansion valve in the air conditioner is increased, and the following steps are included:

[0014] The outdoor environment temperature is acquired.

[0015] Based on the outdoor environment temperature, the first reduction amount of the frequency and the reduction amount of the opening are acquired.

[0016] Based on the first reduction amount, the frequency of the compressor is reduced, and based on the reduction amount, the opening of the electronic expansion valve is reduced.

[0017] According to the control method of the air conditioner provided by the application, when the operation mode of the air conditioner is the heating mode, the frequency of the compressor is reduced, and the opening of the electronic expansion valve is increased, and the following steps are included:

[0018] The outdoor environment temperature is acquired.

[0019] Based on the outdoor environment temperature, the second reduction amount of the frequency and the increase amount of the opening are acquired.

[0020] based on the second reduction amount, reducing the frequency of the compressor, and based on the increase amount, increasing the opening of the electronic expansion valve.

[0021] According to the control method of the air conditioner provided by the application, when the operation mode of the air conditioner is the cooling mode, the solar heating device is started, the first electrically-controlled three-way valve is controlled to select the first port and the third port of the first electrically-controlled three-way valve, the second electrically-controlled three-way valve is controlled to select the first port and the second port of the second electrically-controlled three-way valve, the frequency of the compressor in the air conditioner is reduced, and the opening of the electronic expansion valve in the air conditioner is reduced, and the method further comprises:

[0022] When the air conditioner is stopped, the solar heating device is turned off, and the first electrically-controlled three-way valve is controlled to select the first port and the third port of the first electrically-controlled three-way valve.

[0023] According to the control method of the air conditioner provided by the application, when the operation mode of the air conditioner is the cooling mode, the solar heating device is started, the first electrically-controlled three-way valve is controlled to select the first port and the third port of the first electrically-controlled three-way valve, the second electrically-controlled three-way valve is controlled to select the first port and the second port of the second electrically-controlled three-way valve, the frequency of the compressor in the air conditioner is reduced, and the opening of the electronic expansion valve in the air conditioner is reduced, and the method further comprises:

[0024] When the air conditioner is stopped, the solar heating device is turned off, and the first electrically-controlled three-way valve is controlled to select the first port and the third port of the first electrically-controlled three-way valve.

[0025] The application further provides a control device of an air conditioner, comprising:

[0026] An operation mode detection module is configured to acquire the operation mode of the air conditioner when the compressor in the air conditioner is started.

[0027] An air conditioner control module is configured to, when the operation mode of the air conditioner is the cooling mode, start the solar heating device, control the first electrically-controlled three-way valve to select the first port and the third port of the first electrically-controlled three-way valve, control the second electrically-controlled three-way valve to select the first port and the second port of the second electrically-controlled three-way valve, reduce the frequency of the compressor in the air conditioner, and reduce the opening of the electronic expansion valve in the air conditioner.

[0028] The solar heating device is used for heating the flowing refrigerant by using solar energy.

[0029] The application further provides an air conditioner, comprising an air conditioner body and an air conditioner control processor connected with the air conditioner body; a memory and a program or instruction stored on the memory and executable on the air conditioner control processor, wherein the program or instruction is executed by the air conditioner control processor to perform the air conditioner control method according to any one of the preceding air conditioner control methods.

[0030] The application provides an air conditioner, comprising 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.

[0031] The first port of the first electrically-controlled three-way valve is connected with the first port of the compressor through the condenser, and the third port of the first electrically-controlled three-way valve is connected with the third port of the solar heating device through the electronic expansion valve and the evaporator.

[0032] The first port of the second electrically-controlled three-way valve is connected with the second port of the compressor, and the second port of the second electrically-controlled three-way valve is connected with the fourth port of the solar heating device.

[0033] The solar heating device is used for heating the flowing refrigerant by using solar energy.

[0034] The application provides an air conditioner, comprising 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.

[0035] The application further provides an electronic device, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the air conditioner control method according to any one of the preceding air conditioner control methods.

[0036] The application further provides a non-transient computer readable storage medium, which stores a computer program, wherein the computer program is executed by a processor to implement the air conditioner control method according to any one of the preceding air conditioner control methods.

[0037] The application further provides a computer program product comprising a computer program which, when executed by a processor, implements the control method of the air conditioner according to any one of the above.

[0038] The application provides an air conditioner control method, device and air conditioner. In the case that the compressor in the air conditioner is started and the operation mode of the air conditioner is the cooling mode, the solar heating device is started, the first electrically-controlled three-way valve is controlled to select the first port and the third port of the first electrically-controlled three-way valve, the second electrically-controlled three-way valve is controlled to select the first port and the second port of the second electrically-controlled three-way valve, the frequency of the compressor in the air conditioner is reduced, and the opening of the electronic expansion valve in the air conditioner is increased. The solar heating device is used to heat the flowing refrigerant by using solar energy. The first port of the first electrically-controlled three-way valve is connected with the first port of the compressor through the condenser. The third port of the first electrically-controlled three-way valve is connected with 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 with the second port of the compressor. The second port of the second electrically-controlled three-way valve is connected with the fourth port of the solar heating device. The solar energy is renewable and pollution-free. The 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 the energy loss in the energy conversion process, prevent the compressor from being liquid-impinged by using the solar energy, and reduce the energy consumption of the air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0040] Figure 1 Fig. 1 is one of the flow diagrams of the air conditioner control method provided by the application;

[0041] Figure 2 Fig. 2 is one of the structural diagrams of the air conditioner in the air conditioner control method provided by the application;

[0042] Figure 3 Fig. 3 is another flow diagram of the air conditioner control method provided by the application;

[0043] Figure 4 Fig. 4 is a structural diagram of the air conditioner control device provided by the application;

[0044] Figure 5 Fig. 5 is another structural diagram of the air conditioner in the air conditioner control method provided by the application;

[0045] Figure 6 is a structural schematic diagram of an electronic device provided by the present application. DETAILED DESCRIPTION

[0046] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0047] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "linking" should be understood in a broad sense, for example, they can be fixed connection, detachable connection or integral connection; they can be mechanical connection or electrical connection; they can be direct connection or indirect connection through an intermediate medium; and they can be internal connection of two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present application according to specific circumstances.

[0048] Generally, the conventional air conditioner usually uses commercial power as energy supply. The conventional air conditioner converts electric energy into internal energy through a series of energy conversion to realize the functions of refrigeration, heating and the like. For example, the conventional air conditioner can heat the refrigerant by using an electric heating device to prevent the compressor in the conventional air conditioner from being subjected to liquid strike. However, the air conditioner itself belongs to a household electrical appliance with high energy consumption, and electric energy will inevitably cause energy loss in the process of energy conversion, thereby further increasing the energy consumption of the air conditioner. With the transformation of energy structure, how to reduce the energy consumption of the air conditioner has become a hot topic in the field.

[0049] To this end, the present application provides an air conditioner control method, device and air conditioner. Based on the air conditioner control method provided by the present application, the heat exchange capacity of the air conditioner can be effectively supplemented by directly heating the refrigerant by using solar energy relying on the renewable and pollution-free characteristics of solar energy, and the energy loss in the process of energy conversion can be reduced, so that the compressor can be prevented from being subjected to liquid strike by using solar energy, and the energy consumption of the air conditioner can be reduced.

[0050] Figure 1 is one of flowcharts of the air conditioner control method provided by the present application. The air conditioner control method of the present application will be described below with reference to Figure 1 As shown in Figure 1 , the method comprises the following steps: step 101, acquiring the operation mode of the air conditioner in the case that the compressor in the air conditioner is started.

[0051] It should be noted that the execution subject of the embodiment of the present application is a control device of an air conditioner.

[0052] Generally, the user can control the compressor of the air conditioner to start refrigeration or heating according to actual needs, or control the air conditioner to stop. Among them, the user's control of the air conditioner can be realized based on the user's input control instruction. For example: the controller in the air conditioner can receive the first control instruction input by the user, and can start the compressor in the air conditioner in response to the first control instruction; or the controller can receive the second control instruction input by the user, and can control the air conditioner to stop in response to the second control instruction.

[0053] It should be noted that the user's input can be manifested as a touch input on the target interface, which can include but is not limited to click input, sliding input, and pressing input. The user's input can also be manifested as a physical key input. The user's input can also be manifested as a voice input. Among them, the target interface can be the display interface of the user terminal, and can also be the control interface of the air conditioner. The above-mentioned physical key can be located on the air conditioner body, and can also be located on the external controller of the air conditioner.

[0054] It can be understood that the above-mentioned various inputs are exemplary, that is, the embodiments of the present application include but are not limited to the above-mentioned various inputs. In actual implementation, the user's input can also include other any possible input, which can be specifically determined according to actual use requirements, and the embodiments of the present application are not limited.

[0055] In the case that the compressor in the air conditioner is started, the running mode of the air conditioner can be obtained in various ways, for example: the running mode of the air conditioner can be obtained by detecting the control instruction received by the controller of the air conditioner. Among them, the running mode of the air conditioner includes: the refrigeration mode and the heating mode.

[0056] Step 102, in the case that the running mode of the air conditioner is the refrigeration mode, starting the solar heating device, controlling the first electrically controlled three-way valve to select the first port and the third port of the first electrically controlled three-way valve, controlling the second electrically controlled three-way valve to select the first port and the second port of the second electrically controlled three-way valve, reducing the frequency of the compressor in the air conditioner and reducing the opening of the electronic expansion valve in the air conditioner.

[0057] Among them, the solar heating device is used to heat the flowing refrigerant by using solar energy; the first port of the first electrically controlled three-way valve is connected with the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected with 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 with the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected with the fourth port of the solar heating device.

[0058] Figure 2 is one of the structure schematic diagrams of the air conditioner in the control method of the air conditioner provided by the application, as shown in Figure 2 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. The electronic expansion valve 209 can be used for throttling the refrigerant flowing in. The condenser 218 can be used for gas-liquid conversion of the refrigerant flowing in. The evaporator 219 can be used for liquid-gas conversion of the refrigerant flowing in.

[0059] Optionally, the air conditioner 220 further includes a four-way valve 221.

[0060] The first electrically controlled three-way valve 202 includes three ports, i.e., 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.

[0061] The four-way valve 221 includes four ports, i.e., 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.

[0062] The condenser 218 includes two ports, i.e., a first port 226 of the condenser and a second port 227 of the condenser.

[0063] The evaporator 219 includes two ports, i.e., a first port 228 of the evaporator and a second port 229 of the evaporator.

[0064] Correspondingly, the first port 210 of the compressor is connected with the first port 222 of the four-way valve;

[0065] The second port 223 of the four-way valve is connected with the first port 226 of the condenser;

[0066] The second port 227 of the condenser is connected with the first port 203 of the first electrically controlled three-way valve;

[0067] The third port 204 of the first electrically controlled three-way valve is connected with the second port 217 of the solar heating device and one end of the electronic expansion valve 209, respectively;

[0068] The second port 214 of the first electrically controlled three-way valve is connected with the first port 216 of the solar heating device;

[0069] The other end of the electronic expansion valve 209 is connected with the first port 228 of the evaporator;

[0070] The second port 229 of the evaporator is connected with the third port 211 of the solar heating device and the third port 215 of the second electrically-controlled three-way valve respectively.

[0071] The first port 206 of the second electrically-controlled three-way valve is connected with the third port 224 of the four-way valve.

[0072] The second port 207 of the second electrically-controlled three-way valve is connected with the fourth port 213 of the solar heating device.

[0073] The third port 215 of the second electrically-controlled three-way valve is also connected with the third port 211 of the solar heating device.

[0074] The fourth port 225 of the four-way valve is connected with the second port 212 of the compressor.

[0075] When the compressor 208 is started and the operation mode of the air conditioner 220 is the refrigeration mode, 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, while the solar heating device 201 is started.

[0076] It should be noted that the control device of the air conditioner in the embodiment of the present application can start the solar heating device 201 through a control instruction.

[0077] The control device of the air conditioner in the embodiment of the present application can also 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 through a control instruction.

[0078] After the first electrically-controlled three-way valve 202 selects 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 selects 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 refrigerant flows out of the compressor 208 through the first port 210 of the compressor, 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.

[0079] After the condenser 218 performs gas-liquid conversion on the flowing refrigerant, the refrigerant flows out of the condenser 218 through the second port 227 of the condenser, 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.

[0080] The low-temperature and low-pressure refrigerant after being subjected to the liquid-gas conversion by the evaporator 219 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.

[0081] The solar heating device 201 can heat the flowing refrigerant by using the solar energy, so as 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 become gaseous refrigerant by absorbing the solar heat.

[0082] The gaseous refrigerant can flow back to the compressor 208 through 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, so as to complete the circulation of the refrigerant, effectively prevent the liquid strike of the liquid refrigerant to the compressor 208, and protect the compressor 208. The refrigerant flowing back to the compressor 208 through the above process can improve the efficiency of the compressor 208 and reduce the energy consumption of the air conditioner 220.

[0083] In order to further reduce the energy consumption of the air conditioner 220 in the cooling mode, in the case that the compressor 208 is started and the operation mode of the air conditioner 220 is the cooling mode, the frequency of the compressor 208 and the opening of the electronic expansion valve 209 can be reduced in the embodiment of the present application, so as to further reduce the energy consumption of the air conditioner 220 by reducing the frequency of the compressor 208, and improve the cooling capacity of the air conditioner 220 by reducing the opening of the electronic expansion valve 209, thereby ensuring the stable cooling effect of the air conditioner 220 under the premise of reducing the energy consumption.

[0084] Optionally, in the case that the compressor 208 is started and the operation mode of the air conditioner 220 is the cooling mode, the frequency of the compressor 208 and the opening of the electronic expansion valve 209 can be reduced based on at least one of the indoor environment temperature, the outdoor environment temperature, the temperature difference between the indoor and outdoor environment temperatures, and the number of indoor personnel in the embodiment of the present application.

[0085] In the embodiment of the present application, the controller of the air conditioner can reduce the frequency of the compressor 208 and the opening of the electronic expansion valve 209 by sending a control instruction carrying the reduction amount of the frequency of the compressor 208 and the reduction amount of the electronic expansion valve 209 to the controller of the air conditioner 220.

[0086] The embodiment of the present application can start the solar heating device, control the first electrically-controlled three-way valve to select the first port and the third port of the first electrically-controlled three-way valve, control the second electrically-controlled three-way valve to select the first port and the second port of the second electrically-controlled three-way valve, reduce the frequency of the compressor in the air conditioner and increase the opening of the electronic expansion valve in the air conditioner, when the compressor in the air conditioner is started and the operation mode of the air conditioner is the refrigeration mode, wherein the solar heating device is used for heating the flowing refrigerant by using solar energy, the first port of the first electrically-controlled three-way valve is connected with the first port of the compressor through the condenser, the third port of the first electrically-controlled three-way valve is connected with 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 with the second port of the compressor, and the second port of the second electrically-controlled three-way valve is connected with the fourth port of the solar heating device, which can rely on the renewable and pollution-free characteristics of solar energy, directly heat the refrigerant by using solar energy, effectively supplement the heat exchange capacity of the air conditioner, improve the efficiency of the compressor, reduce the energy loss in the energy conversion process, prevent the compressor from liquid strike by using solar energy, and reduce the energy consumption of the air conditioner.

[0087] Based on the above-mentioned embodiments, when the compressor 208 in the air conditioner 220 is started, the operation mode of the air conditioner 220 is obtained, and then the following steps are further included: when the operation mode of the air conditioner 220 is the heating mode, starting the solar heating device 201, controlling the first electrically-controlled three-way valve 202 to select the first port 203 and the second port 214 of the first electrically-controlled three-way valve, controlling the second electrically-controlled three-way valve 205 to select the first port 206 and the third port 215 of the second electrically-controlled three-way valve, reducing the frequency of the compressor 208 and increasing the opening of the electronic expansion valve 209.

[0088] The second port 214 of the first electrically-controlled three-way valve is connected with the first port 216 of the solar heating device, and the third port 215 of the second electrically-controlled three-way valve is connected with the second port 217 of the solar heating device through the electronic expansion valve 209 and the evaporator 219.

[0089] Specifically, when the compressor 208 is started and the operation mode of the air conditioner 220 is the heating mode, the solar heating device 201 can be started, the first electrically-controlled three-way valve 202 is controlled to select the first port 203 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 and the third port 215 of the second electrically-controlled three-way valve.

[0090] It should be noted that the solar heating device 201 can be started by a control instruction in the embodiment of the present application.

[0091] The first electrically controlled three-way valve 202 and the second electrically controlled three-way valve 205 can be controlled by the control instructions to select the first port 203 of the first electrically controlled three-way valve 202 and the second port 214 of the first electrically controlled three-way valve 202, and to select the first port 206 of the second electrically controlled three-way valve 205 and the third port 215 of the second electrically controlled three-way valve 205.

[0092] After the first electrically controlled three-way valve 202 and the second electrically controlled three-way valve 205 select the first port 203 of the first electrically controlled three-way valve 202 and the second port 214 of the first electrically controlled three-way valve 202, and select the first port 206 of the second electrically controlled three-way valve 205 and the third port 215 of the second electrically controlled three-way valve 205, the refrigerant flows out of the compressor 208 through the second port 212 of the compressor, 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.

[0093] After the evaporator 219 performs the liquid-gas conversion on the refrigerant flowing in, 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.

[0094] The solar heating device 201 can use solar energy to heat the refrigerant flowing in, so as to increase the temperature of the low-temperature and low-pressure refrigerant flowing in through the evaporator 219 and the electronic expansion valve 209. The saturated gas-liquid two-phase refrigerant can become gaseous refrigerant by absorbing the solar heat, and the temperature of the refrigerant can be increased.

[0095] The above-mentioned 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.

[0096] The condenser 218 can perform the gas-liquid conversion on the above-mentioned gaseous refrigerant flowing in. Since the temperature of the refrigerant is increased by the solar heating device 201 when the refrigerant passes through the solar heating device 201, the refrigerant with the increased temperature can increase the heat exchange efficiency of the condenser 218 when the refrigerant flows into the condenser 218.

[0097] After the condenser 218 performs the gas-liquid conversion on the refrigerant flowing in, the refrigerant flows out of the condenser 218 through the first port 226 of the condenser, and flows back to the compressor 208 through the second port 223 of the four-way valve, the first port 222 of the four-way valve, and the first port 210 of the compressor, so as to complete the circulation of the refrigerant, effectively prevent the liquid strike phenomenon of the liquid refrigerant on the compressor 208, and protect the compressor 208. The refrigerant flows back to the compressor 208 through the above-mentioned process, which can improve the efficiency of the compressor 208 and reduce the energy consumption of the air conditioner 220.

[0098] To further reduce the energy consumption of the air conditioner 220 in the heating mode, the frequency of the compressor 208 can be reduced and the opening degree of the electronic expansion valve 209 can be increased in the case that the compressor 208 is started and the operation mode of the air conditioner 220 is the heating mode, so as to further reduce the energy consumption of the air conditioner 220 by reducing the frequency of the compressor 208, and to improve the heating capacity of the air conditioner 220 by increasing the opening degree of the electronic expansion valve 209, thereby ensuring that the energy consumption of the air conditioner 220 is reduced on the premise that the heating effect is stable.

[0099] Optionally, in the case that the compressor 208 is started and the operation mode of the air conditioner 220 is the heating mode, the frequency of the compressor 208 can be reduced and the opening degree of the electronic expansion valve 209 can be increased based on at least one of the indoor environment temperature, the outdoor environment temperature, the temperature difference between the indoor and outdoor environment temperatures, and the number of indoor personnel.

[0100] In the embodiment of the present application, the frequency of the compressor 208 can be reduced and the opening degree of the electronic expansion valve 209 can be increased by sending a control instruction carrying the reduction amount of the frequency of the compressor 208 and the increase amount of the electronic expansion valve 209 to the controller of the air conditioner.

[0101] In the embodiment of the present application, the frequency of the compressor 208 can be reduced and the opening degree of the electronic expansion valve 209 can be increased by sending a control instruction carrying the reduction amount of the frequency of the compressor 208 and the increase amount of the electronic expansion valve 209 to the controller of the air conditioner.

[0102] Based on the above-mentioned embodiments, in the case that the operation mode of the air conditioner 220 is the cooling mode, the frequency of the compressor 208 in the air conditioner 220 can be reduced and the opening degree of the electronic expansion valve 209 in the air conditioner 220 can be decreased, including: obtaining the outdoor environment temperature.

[0103] Specifically, the outdoor environment temperature can reflect the illumination intensity of the outdoor.

[0104] The outdoor environment temperature can be acquired by using the temperature sensor in the embodiment of the present application.

[0105] Based on the outdoor environment temperature, a first reduction amount of the frequency and a reduction amount of the opening degree are acquired.

[0106] Specifically, in the embodiment of the present application, the mapping relationship between the outdoor environment temperature and the first reduction amount of the frequency of the compressor 208, and the mapping relationship between the outdoor environment temperature and the reduction amount of the opening degree of the electronic expansion valve 209 can be determined based on prior knowledge. The outdoor environment temperature is positively correlated with the first reduction amount, and the outdoor environment temperature is positively correlated with the reduction amount.

[0107] Optionally, when the outdoor environment temperature is in a first temperature interval, the first reduction amount can be a first preset value, and the reduction amount can be a second preset value.

[0108] When the outdoor environment temperature is in a second temperature interval, the first reduction amount can be twice the first preset value, and the reduction amount can be twice the second preset value.

[0109] When the outdoor environment temperature is in a third temperature interval, the first reduction amount can be three times the first preset value, and the reduction amount can be three times the second preset value.

[0110] When the outdoor environment temperature is in a fourth temperature interval, the first reduction amount can be four times the first preset value, and the reduction amount can be four times the second preset value.

[0111] When the outdoor environment temperature is in a fifth temperature interval, the first reduction amount can be five times the first preset value, and the reduction amount can be five times the second preset value.

[0112] The first temperature interval, the second temperature interval, the third temperature interval, the fourth temperature interval, and the fifth temperature interval are temperature increasing. The first temperature interval and the fifth temperature interval can be semi-open temperature intervals, and the second temperature interval, the third temperature interval, and the fourth temperature interval have the same length.

[0113] The first temperature interval, the second temperature interval, the third temperature interval, the fourth temperature interval, the fifth temperature interval, the first preset value, and the second preset value can be determined based on prior knowledge.

[0114] Preferably, the first temperature interval is (-∞, 30℃), the second temperature interval is [30℃, 35℃), the third temperature interval is [35℃, 40℃), the fourth temperature interval is [40℃, 45℃), the fifth temperature interval is [45℃, +∞), the first preset value is 1 Hz, and the second preset value is 5%.

[0115] Based on the first reduction amount, the frequency of the compressor 208 is reduced, and based on the reduction amount, the opening degree of the electronic expansion valve 209 is reduced.

[0116] Specifically, after obtaining the first reduction amount and the reduction amount, the frequency of the compressor 208 can be reduced based on the first reduction amount, and the opening degree of the electronic expansion valve 209 can be reduced based on the reduction amount.

[0117] The embodiment of the present application can obtain the first reduction amount of the frequency of the compressor and the reduction amount of the opening degree of the electronic expansion valve based on the outdoor environment temperature when the operating mode of the air conditioner is the cooling mode, and reduce the frequency of the compressor based on the first reduction amount and reduce the opening degree of the electronic expansion valve based on the reduction amount, so that the frequency of the compressor and the opening degree of the electronic expansion valve can be reduced more flexibly and accurately based on the actual scene when the operating mode of the air conditioner is the cooling mode, thereby further reducing the energy consumption of the air conditioner and ensuring the stable cooling effect of the air conditioner when the frequency of the compressor is reduced.

[0118] Based on the content of each embodiment, the frequency of the compressor 208 in the air conditioner 220 is reduced and the opening degree of the electronic expansion valve 209 in the air conditioner 220 is increased when the operating mode of the air conditioner 220 is the heating mode, comprising: obtaining the outdoor environment temperature.

[0119] Specifically, the outdoor environment temperature can reflect the outdoor illumination intensity.

[0120] In the embodiment of the present application, the outdoor environment temperature can be obtained by using a temperature sensor.

[0121] Based on the outdoor environment temperature, the second reduction amount of the frequency and the increase amount of the opening degree are obtained.

[0122] Specifically, in the embodiment of the present application, the mapping relationship between the outdoor environment temperature and the second reduction amount of the frequency of the compressor 208, and the mapping relationship between the outdoor environment temperature and the increase amount of the opening degree of the electronic expansion valve 209 can be determined based on prior knowledge. Wherein, the outdoor environment temperature is positively correlated with the first reduction amount, and the outdoor environment temperature is negatively correlated with the reduction amount.

[0123] Optionally, when the outdoor environment temperature is in the sixth temperature interval, the second reduction amount can be a third preset value, and the increase amount can be five times the fourth preset value.

[0124] When the outdoor environment temperature is in the seventh temperature interval, the second reduction amount can be twice the third preset value, and the increase amount can be four times the fourth preset value.

[0125] In a case that the outdoor environment temperature is in the eighth temperature interval, the second reduction amount can be a third preset value multiplied by three, and the increase amount can be a fourth preset value multiplied by two.

[0126] In a case that the outdoor environment temperature is in the ninth temperature interval, the second reduction amount can be a third preset value multiplied by four, and the increase amount can be a fourth preset value multiplied by two.

[0127] In a case that the outdoor environment temperature is in the tenth temperature interval, the second reduction amount can be a third preset value multiplied by five, and the increase amount can be a fourth preset value.

[0128] The sixth temperature interval, the seventh temperature interval, the eighth temperature interval, the ninth temperature interval, and the tenth temperature interval are in ascending order. The sixth temperature interval and the tenth temperature interval can be semi-open temperature intervals, and the seventh temperature interval, the eighth temperature interval, and the ninth temperature interval have the same length.

[0129] The sixth temperature interval, the seventh temperature interval, the eighth temperature interval, the ninth temperature interval, and the tenth temperature interval, and the third preset value and the fourth preset value can be determined based on prior knowledge.

[0130] Preferably, the sixth temperature interval is (-∞, -5℃), the seventh temperature interval is [-5℃, 0℃), the eighth temperature interval is [0℃, 5℃), the ninth temperature interval is [5℃, 10℃), the tenth temperature interval is [10℃, +∞), the third preset value is 1 Hz, and the fourth preset value is 5%.

[0131] Based on the second reduction amount, the frequency of the compressor 208 is reduced, and based on the increase amount, the opening degree of the electronic expansion valve 209 is increased.

[0132] Specifically, after the second reduction amount and the increase amount are obtained, the frequency of the compressor 208 can be reduced based on the second reduction amount, and the opening degree of the electronic expansion valve 209 can be increased based on the increase amount.

[0133] The embodiment of the present application can obtain the second reduction amount of the frequency of the compressor and the increase amount of the opening degree of the electronic expansion valve based on the outdoor environment temperature in a case that the operation mode of the air conditioner is the heating mode, and reduce the frequency of the compressor based on the second reduction amount and reduce the opening degree of the electronic expansion valve based on the increase amount, so that the frequency of the compressor and the opening degree of the electronic expansion valve can be more flexibly and accurately reduced based on the actual scene in a case that the operation mode of the air conditioner is the heating mode, thereby further reducing the energy consumption of the air conditioner and ensuring the stable heating effect of the air conditioner in a case that the frequency of the compressor is reduced.

[0134] Based on the above-mentioned embodiments, in the case that the operation 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 and the third port 204 of the first electrically-controlled three-way valve, the second electrically-controlled three-way valve 205 is controlled to select the first port 206 and the second port 207 of the second electrically-controlled three-way valve, the frequency of the compressor 208 in the air conditioner 220 is reduced, and the opening of the electronic expansion valve 209 in the air conditioner 220 is reduced, and then, in the case that the air conditioner 220 is stopped, the solar heating device 201 is closed, and the second electrically-controlled three-way valve 205 is controlled to select the first port 206 and the third port 215 of the second electrically-controlled three-way valve.

[0135] In the case that the air conditioner is stopped in the cooling mode, the solar heating device is closed, and the first electrically-controlled three-way valve is controlled to select the first port and the third port of the first electrically-controlled three-way valve, so that the solar heating device is not connected to the refrigerant circulation loop in the case that the air conditioner is stopped, and the air conditioner is protected.

[0136] Based on the above-mentioned embodiments, in the case that the operation 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 and the third port 204 of the first electrically-controlled three-way valve, the second electrically-controlled three-way valve 205 is controlled to select the first port 206 and the second port 207 of the second electrically-controlled three-way valve, the frequency of the compressor 208 in the air conditioner 220 is reduced, and the opening of the electronic expansion valve 209 in the air conditioner 220 is reduced, and then, in the case that the air conditioner 220 is stopped, the solar heating device 201 is closed, and the second electrically-controlled three-way valve 205 is controlled to select the first port 206 and the third port 215 of the second electrically-controlled three-way valve.

[0137] In the case that the air conditioner is stopped in the cooling mode, the solar heating device is closed, and the first electrically-controlled three-way valve is controlled to select the first port and the third port of the first electrically-controlled three-way valve, so that the solar heating device is not connected to the refrigerant circulation loop in the case that the air conditioner is stopped, and the air conditioner is protected.

[0138] In order to facilitate the understanding of the control method of the air conditioner provided by the present application, the control method of the air conditioner provided by the present application is described below through an example. Figure 3 is a flowchart of the control method of the air conditioner provided by the present application. As shown in Figure 3 , after the compressor 208 in the air conditioner 220 is started, the operation mode of the air conditioner 220 is obtained.

[0139] In the case that the operation 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, 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, the frequency of the compressor 208 in the air conditioner 220 is reduced, and the opening of the electronic expansion valve 209 in the air conditioner 220 is reduced.

[0140] In the case that the outdoor environment temperature is in (-∞, 30℃), the frequency of the compressor 208 is reduced by 1 Hz, and the opening of the electronic expansion valve 209 is reduced by 5%; in the case that the outdoor environment temperature is in [30℃, 35℃), the frequency of the compressor 208 is reduced by 2 Hz, and the opening of the electronic expansion valve 209 is reduced by 10%; in the case that the outdoor environment temperature is in [35℃, 40℃), the frequency of the compressor 208 is reduced by 3 Hz, and the opening of the electronic expansion valve 209 is reduced by 15%; in the case that the outdoor environment temperature is in [40℃, 45℃), the frequency of the compressor 208 is reduced by 4 Hz, and the opening of the electronic expansion valve 209 is reduced by 20%; in the case that the outdoor environment temperature is in [45℃, +∞), the frequency of the compressor 208 is reduced by 5 Hz, and the opening of the electronic expansion valve 209 is reduced by 25%.

[0141] In the case that the air conditioner 220 is stopped in the cooling mode, the solar heating device 201 is closed, 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.

[0142] In the case that the operation 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, 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, the frequency of the compressor 208 in the air conditioner 220 is reduced, and the opening of the electronic expansion valve 209 in the air conditioner 220 is increased.

[0143] In the case that the outdoor ambient temperature is in (-∞, -5℃), the frequency of the compressor 208 is reduced by 1Hz, and the opening of the electronic expansion valve 209 is increased by 25%; in the case that the outdoor ambient temperature is in [-5℃, 0℃), the frequency of the compressor 208 is reduced by 2Hz, and the opening of the electronic expansion valve 209 is increased by 20%; in the case that the outdoor ambient temperature is in [0℃, 5℃), the frequency of the compressor 208 is reduced by 3Hz, and the opening of the electronic expansion valve 209 is increased by 15%; in the case that the outdoor ambient temperature is in [5℃, 10℃), the frequency of the compressor 208 is reduced by 4Hz, and the opening of the electronic expansion valve 209 is increased by 10%; in the case that the outdoor ambient temperature is in [10℃, +∞), the frequency of the compressor 208 is reduced by 5Hz, and the opening of the electronic expansion valve 209 is increased by 5%.

[0144] In the case that the air conditioner 220 is stopped in the heating mode, the solar heating device 201 is closed, and 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.

[0145] Figure 4 is one of the structural schematic diagrams of the control device of the air conditioner provided by the present application. The control device of the air conditioner provided by the present application will be described below in combination with Figure 4 The control device of the air conditioner provided by the present application will be described below, and the control device of the air conditioner described below can be correspondingly referred to the control method of the air conditioner provided by the present application described above. As shown in the figure, the device comprises a running mode detection module 401 and an air conditioner control module 402. Figure 4

[0146] The running mode detection module 401 is used to acquire the running mode of the air conditioner 220 in the case that the compressor 208 is started.

[0147] The air conditioner control module 402 is used to start the solar heating device 201, control the first electrically-controlled three-way valve 202 to select the first port 203 and the third port 204 of the first electrically-controlled three-way valve, control the second electrically-controlled three-way valve 205 to select the first port 206 and the second port 207 of the second electrically-controlled three-way valve, reduce the frequency of the compressor 208 in the air conditioner 220, and reduce the opening of the electronic expansion valve 209 in the air conditioner 220 in the case that the running mode of the air conditioner 220 is the cooling mode.

[0148] ​The solar heating device 201 is used for heating the flowing refrigerant by using solar energy; the first port 203 of the first electrically-controlled three-way valve is connected with the first port 210 of the compressor through the condenser 218, the third port 204 of the first electrically-controlled three-way valve is connected with 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 with the second port 212 of the compressor, and the second port 207 of the second electrically-controlled three-way valve is connected with the fourth port 213 of the solar heating device.

[0149] Specifically, the operation mode detection module 401 and the air conditioner control module 402 are electrically connected.

[0150] Optionally, the air conditioner control module 402 can also be used for starting the solar heating device 201, controlling the first electrically-controlled three-way valve 202 to select the first port 203 and the second port of the first electrically-controlled three-way valve, controlling the second electrically-controlled three-way valve 205 to select the first port 206 and the third port of the second electrically-controlled three-way valve, reducing the frequency of the compressor 208 and increasing the opening of the electronic expansion valve 209 when the operation mode of the air conditioner 220 is the heating mode; the second port 214 of the first electrically-controlled three-way valve is connected with the first port 216 of the solar heating device; the third port 215 of the second electrically-controlled three-way valve is connected with the second port 217 of the solar heating device through the electronic expansion valve 209 and the evaporator 219.

[0151] Optionally, the air conditioner control module 402 can further include a first control unit and a second control unit.

[0152] The first control unit can be used for acquiring the outdoor environment temperature; acquiring the first reduction amount of the frequency and the reduction amount of the opening based on the outdoor environment temperature; reducing the frequency of the compressor 208 based on the first reduction amount and reducing the opening of the electronic expansion valve 209 based on the reduction amount.

[0153] The second control unit can be used for acquiring the outdoor environment temperature; acquiring the second reduction amount of the frequency and the increase amount of the opening based on the outdoor environment temperature; reducing the frequency of the compressor 208 based on the second reduction amount and increasing the opening of the electronic expansion valve 209 based on the increase amount.

[0154] Optionally, the air conditioner control module 402 can also be used for closing the solar heating device 201 and controlling the second electrically-controlled three-way valve 205 to select the first port 206 and the third port 215 of the second electrically-controlled three-way valve when the air conditioner 220 is stopped.

[0155] Optionally, the air conditioner control module 402 can also be used to turn off the solar heating device 201 and control the first electrically controlled three-way valve 202 to select the first port 203 and the third port 204 of the first electrically controlled three-way valve in the case that the air conditioner 220 is stopped.

[0156] The control device of the air conditioner in the embodiment of the present application, by starting the solar heating device in the case that the compressor in the air conditioner is started and the operation mode of the air conditioner is the refrigeration mode, controlling the first electrically controlled three-way valve to select the first port and the third port of the first electrically controlled three-way valve, controlling the second electrically controlled three-way valve to select the first port and the second port of the second electrically controlled three-way valve, reducing the frequency of the compressor in the air conditioner and increasing the opening of the electronic expansion valve in the air conditioner, wherein the solar heating device is used to heat the inflowing refrigerant by using solar energy, the first port of the first electrically controlled three-way valve is connected with the first port of the compressor through the condenser, the third port of the first electrically controlled three-way valve is connected with 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 with the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected with the fourth port of the solar heating device, can rely on the renewable and pollution-free characteristics of solar energy, directly heat the refrigerant by using solar energy, effectively supplement the heat exchange capacity of the air conditioner, can improve the efficiency of the compressor, can reduce the energy loss in the energy conversion process, can prevent the compressor from liquid strike phenomenon by using solar energy, and can reduce the energy consumption of the air conditioner.

[0157] Based on the above-mentioned embodiments, an air conditioner comprises: an air conditioner body and an air conditioner control processor; the air conditioner control processor is connected with the air conditioner body; further comprising a memory and a program or instruction stored on the memory and executable on the air conditioner control processor, the program or instruction is executed by the air conditioner control processor to perform the air conditioner control method of any one of the above.

[0158] Figure 5 is a second structure diagram of the air conditioner in the control method of the air conditioner provided by the present application. Figure 5 As shown in the figure, the air conditioner body 501, the air conditioner control processor 502 and the memory 503 are electrically connected.

[0159] It should be noted that the air conditioner body 501 corresponds to the air conditioner in the above-mentioned embodiments. The specific structure of the air conditioner body 501 can be referred to the specific structure of the air conditioner 220 in Figure 2 .

[0160] The air conditioner control processor 502 can control the air conditioner body 501 to achieve the technical effect of preventing the compressor from liquid strike phenomenon by using solar energy and reducing the energy consumption of the air conditioner.

[0161] The control processor of the air conditioner controls the process of the air conditioner body, and details can be found in any of the above embodiments, which will not be repeated here.

[0162] The air conditioner comprises an air conditioner body and a control processor of the air conditioner. When the compressor in the air conditioner body is started and the operation mode of the air conditioner body is the cooling mode, the control processor starts a solar heating device, controls the first electrically-controlled three-way valve to select the first port and the third port of the first electrically-controlled three-way valve, controls the second electrically-controlled three-way valve to select the first port and the second port of the second electrically-controlled three-way valve, reduces the frequency of the compressor in the air conditioner body, and increases the opening degree of the electronic expansion valve in the air conditioner body. The first port of the first electrically-controlled three-way valve is connected with the first port of the compressor through the condenser, the third port of the first electrically-controlled three-way valve is connected with 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 with the second port of the compressor, and the second port of the second electrically-controlled three-way valve is connected with the fourth port of the solar heating device. The solar energy is renewable and pollution-free, and the solar energy is used to directly heat the refrigerant, which effectively supplements the heat exchange capacity of the air conditioner body, improves the efficiency of the compressor, reduces the energy loss in the energy conversion process, prevents the compressor from being liquid-impinged by using the solar energy, and reduces the energy consumption of the air conditioner body.

[0163] Based on the above embodiments, 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.

[0164] The first port of the first electrically-controlled three-way valve is connected with the first port of the compressor through the condenser, and the third port of the first electrically-controlled three-way valve is connected with the third port of the solar heating device through the electronic expansion valve and the evaporator.

[0165] The first port of the second electrically-controlled three-way valve is connected with the second port of the compressor, and the second port of the second electrically-controlled three-way valve is connected with the fourth port of the solar heating device.

[0166] The solar heating device is used to heat the inflowing refrigerant by using the solar energy.

[0167] The air conditioner in the embodiment can rely on the renewable and pollution-free characteristics of the solar energy, directly heat the refrigerant by using the solar energy, effectively supplement the heat exchange capacity of the air conditioner body when the air conditioner body operates in the cooling mode, improve the efficiency of the compressor, reduce the energy loss in the energy conversion process, prevent the compressor from being liquid-impinged by using the solar energy, and reduce the energy consumption of the air conditioner body.

[0168] Based on the content of each of the above embodiments, the second port of the first electrically controlled three-way valve is connected with the first port of the solar heating device, and the third port of the second electrically controlled three-way valve is connected with the second port of the solar heating device through the electronic expansion valve and the evaporator.

[0169] The air conditioner in the embodiment of the application can rely on the renewable and pollution-free characteristics of solar energy, directly heat the refrigerant by using solar energy, effectively supplement the heat exchange capacity of the air conditioner body in the case that the air conditioner body is running in the heating mode, improve the efficiency of the compressor, reduce the energy loss in the energy conversion process, prevent the compressor from liquid strike phenomenon by using solar energy, and reduce the energy consumption of the air conditioner body.

[0170] Figure 6 An example of a schematic diagram of a physical structure of an electronic device is shown in Figure 6 As shown, the electronic device can include a processor 610, a communications interface 620, a memory 630, and a communications bus 640, wherein the processor 610, the communications interface 620, and the memory 630 complete mutual communication through the communications bus 640. The processor 610 can invoke a logical instruction in the memory 630 to execute a control method of an air conditioner, the method comprising: in the case that a compressor in the air conditioner is started, acquiring a running mode of the air conditioner; in the case that the running mode of the air conditioner is a cooling mode, starting a solar heating device, controlling a first electrically controlled three-way valve to select a first port and a third port of the first electrically controlled three-way valve, controlling a second electrically controlled three-way valve to select a first port and a second port of the second electrically controlled three-way valve, reducing a frequency of the compressor in the air conditioner, and reducing an opening degree of an electronic expansion valve in the air conditioner; wherein the solar heating device is used to heat the refrigerant flowing in by using solar energy; the first port of the first electrically controlled three-way valve is connected with a first port of the compressor through a condenser, and the third port of the first electrically controlled three-way valve is connected with a 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 with a second port of the compressor, and the second port of the second electrically controlled three-way valve is connected with a fourth port of the solar heating device.

[0171] In addition, the logic instructions in the memory 630 described above can be implemented in the form of software functional units and sold or used as independent products, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0172] In another aspect, the present application also provides a computer program product, which comprises a computer program, the computer program can be stored on a non-transitory computer readable storage medium, and the computer program can be executed by a processor, so that the computer can execute the control method of the air conditioner provided by the above-mentioned method, the method comprises: obtaining the operation mode of the air conditioner when the compressor in the air conditioner is started; starting the solar heating device, controlling the first electrically controlled three-way valve to select the first port and the third port of the first electrically controlled three-way valve, controlling the second electrically controlled three-way valve to select the first port and the second port of the second electrically controlled three-way valve, reducing the frequency of the compressor in the air conditioner and reducing the opening of the electronic expansion valve in the air conditioner when the operation mode of the air conditioner is the refrigeration mode; wherein the solar heating device is used to heat the flowing refrigerant by using solar energy; the first port of the first electrically controlled three-way valve is connected with the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected with 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 with the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected with the fourth port of the solar heating device.

[0173] In yet another aspect, the present application also provides a non-transitory computer readable storage medium having stored thereon a computer program, which, when executed by a processor, implements the control method of the air conditioner provided by the above method, and the method comprises: obtaining an operation mode of the air conditioner in the case that the compressor in the air conditioner is started; starting the solar heating device, controlling the first electrically controlled three-way valve to select the first port and the third port of the first electrically controlled three-way valve, controlling the second electrically controlled three-way valve to select the first port and the second port of the second electrically controlled three-way valve, reducing the frequency of the compressor in the air conditioner, and reducing the opening degree of the electronic expansion valve in the air conditioner in the case that the operation mode of the air conditioner is the refrigeration mode; wherein the solar heating device is used to heat the flowing refrigerant by using solar energy; the first port of the first electrically controlled three-way valve is connected with the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected with 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 with the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected with the fourth port of the solar heating device.

[0174] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0175] From the above description of the embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software and necessary universal hardware platforms, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0176] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method of an air conditioner, characterized by, Comprise: In the case of starting the compressor in the air conditioner, the running mode of the air conditioner is obtained; In the case of the running mode of the air conditioner being a cooling mode, starting the solar heating device, controlling the first electrically controlled three-way valve to select the first port and the third port of the first electrically controlled three-way valve, controlling the second electrically controlled three-way valve to select the first port and the second port of the second electrically controlled three-way valve, reducing the frequency of the compressor in the air conditioner and reducing the opening of the electronic expansion valve; Wherein, the solar heating device is used to heat the flowing refrigerant with solar energy; the first port of the first electrically controlled three-way valve is connected with the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected with 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 with the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected with the fourth port of the solar heating device; the refrigerant flows out of the compressor through the first port of the compressor, flows into the condenser through the first port of the four-way valve, the second port of the four-way valve and the first port of the condenser; after the condenser converts the flowing refrigerant into gas-liquid, the refrigerant flows out of the condenser through the second port of the condenser, flows into the evaporator through the first port of the first electrically controlled three-way valve, the third port of the first electrically controlled three-way valve, the electronic expansion valve and the first port of the evaporator; after the evaporator converts the flowing refrigerant into liquid-gas, the low-temperature and low-pressure refrigerant flows into the solar heating device through the second port of the evaporator and the third port of the solar heating device; the frequency of the compressor in the air conditioner is reduced and the opening of the electronic expansion valve in the air conditioner is reduced based on the first reduction amount and the reduction amount of the opening based on the outdoor environment temperature; Obtain the outdoor environment temperature; Based on the outdoor environment temperature, obtain the first reduction amount of the frequency and the reduction amount of the opening; Based on the first reduction amount, reduce the frequency of the compressor, and based on the reduction amount, reduce the opening of the electronic expansion valve; After the running mode of the air conditioner is obtained in the case of starting the compressor in the air conditioner, it further comprises: In the case of the running mode of the air conditioner being a heating mode, starting the solar heating device, controlling the first electrically controlled three-way valve to select the first port and the second port of the first electrically controlled three-way valve, controlling the second electrically controlled three-way valve to select the first port and the third port of the second electrically controlled three-way valve, reducing the frequency of the compressor and increasing the opening of the electronic expansion valve; Wherein, the second port of the first electrically controlled three-way valve is connected with the first port of the solar heating device; the third port of the second electrically controlled three-way valve is connected with the second port of the solar heating device through the electronic expansion valve and the evaporator; The refrigerant flows out of the compressor through the second port of the compressor, flows into the evaporator through the fourth port of the four-way valve, the third port of the four-way valve and the second port of the evaporator, flows into the solar heating device through the first port of the evaporator, the electronic expansion valve and the second port of the solar heating device, the solar heating device heats the refrigerant flowing in, the refrigerant flows into the condenser through the first port of the solar heating device, the second port of the first electrically-controlled three-way valve, the first port of the first electrically-controlled three-way valve and the second port of the condenser, flows out of the condenser through the first port of the condenser and returns to the compressor through the second port of the four-way valve, the first port of the four-way valve and the first port of the compressor.

2. The control method of the air conditioner according to claim 1, characterized by, The method further comprises: acquiring an outdoor ambient temperature; acquiring a second reduction amount of the frequency and an increase amount of the opening degree based on the outdoor ambient temperature; reducing the frequency of the compressor based on the second reduction amount and increasing the opening degree of the electronic expansion valve based on the increase amount.

3. The control method of an air conditioner according to claim 1 or 2, characterized by, The method further comprises: in the case that the air conditioner is shut down, turning off the solar heating device and controlling the second electrically-controlled three-way valve to select the first port and the third port of the second electrically-controlled three-way valve.

4. The control method of an air conditioner according to claim 1 or 2, characterized by, The method further comprises: in the case that the air conditioner is shut down, turning off the solar heating device and controlling the first electrically-controlled three-way valve to select the first port and the third port of the first electrically-controlled three-way valve.

5. A control device for an air conditioner, characterized by comprising: The method further comprises: in the case that the air conditioner is shut down, turning off the solar heating device and controlling the first electrically-controlled three-way valve to select the first port and the third port of the first electrically-controlled three-way valve. The method further comprises: an operation mode detection module, configured to acquire an operation mode of an air conditioner in the case that a compressor in the air conditioner is started; an air conditioner control module, configured to, in the case that the operation mode of the air conditioner is a cooling mode, start a solar heating device, control a first electrically-controlled three-way valve to select a first port and a third port of the first electrically-controlled three-way valve, control a second electrically-controlled three-way valve to select a first port and a second port of the second electrically-controlled three-way valve, reduce a frequency of the compressor in the air conditioner and reduce an opening degree of an electronic expansion valve in the air conditioner; The solar heating device is used for heating the flowing refrigerant by using solar energy; the first port of the first electrically-controlled three-way valve is connected with the first port of the compressor through the condenser, the third port of the first electrically-controlled three-way valve is connected with 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 with the second port of the compressor, and the second port of the second electrically-controlled three-way valve is connected with the fourth port of the solar heating device; the refrigerant flows out of the compressor through the first port of the compressor, flows into the condenser through the first port of the four-way valve, the second port of the four-way valve and the first port of the condenser; after the condenser performs gas-liquid conversion on the flowing refrigerant, the refrigerant flows out of the condenser through the second port of the condenser, flows into the evaporator through the first port of the first electrically-controlled three-way valve, the third port of the first electrically-controlled three-way valve, the electronic expansion valve and the first port of the evaporator; after the evaporator performs liquid-gas conversion on the flowing refrigerant, the refrigerant at low temperature and low pressure flows into the solar heating device through the second port of the evaporator and the third port of the solar heating device; The method comprises the following steps: acquiring an outdoor environment temperature; acquiring a first reduction amount of the frequency and a reduction amount of the opening degree of the electronic expansion valve based on the outdoor environment temperature; reducing the frequency of the compressor based on the first reduction amount and reducing the opening degree of the electronic expansion valve based on the reduction amount; The air conditioner control module is further configured to, after acquiring the operation mode of the air conditioner, in the case that the operation mode of the air conditioner is a heating mode, start the solar heating device, control the first electrically-controlled three-way valve to select the first port and the second port of the first electrically-controlled three-way valve, control the second electrically-controlled three-way valve to select the first port and the third port of the second electrically-controlled three-way valve, reduce the frequency of the compressor and increase the opening degree of the electronic expansion valve, in the case that the compressor in the air conditioner is started; The second port of the first electrically-controlled three-way valve is connected with the first port of the solar heating device; the third port of the second electrically-controlled three-way valve is connected with the second port of the solar heating device through the electronic expansion valve and the evaporator; The refrigerant flows out of the compressor through the second port of the compressor, flows into the evaporator through the fourth port of the four-way valve, the third port of the four-way valve and the second port of the evaporator, flows into the solar heating device through the first port of the evaporator, the electronic expansion valve and the second port of the solar heating device, is heated by the solar heating device, flows into the condenser through the first port of the solar heating device, the second port of the first electrically-controlled three-way valve, the first port of the first electrically-controlled three-way valve and the second port of the condenser, flows out of the condenser through the first port of the condenser, and flows back to the compressor through the second port of the four-way valve, the first port of the four-way valve and the first port of the compressor.

6. An air conditioner characterized by comprising: The air conditioner comprises an air conditioner body and a control processor of the air conditioner. ​ The control processor of the air conditioner is connected with the air conditioner body; further comprising a memory and a program or instruction stored on the memory and executable on the control processor of the air conditioner, the program or instruction being executed by the control processor of the air conditioner to perform the control method of the air conditioner as claimed in any one of claims 1 to 4.

7. The air conditioner of claim 6, wherein The air conditioner body comprises a compressor, 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 with the first port of the compressor through the condenser, and the third port of the first electrically controlled three-way valve is connected with 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 with the second port of the compressor, and the second port of the second electrically controlled three-way valve is connected with the fourth port of the solar heating device; The solar heating device is used for heating the inflowing refrigerant by using solar energy.

8. The air conditioner of claim 7, wherein The second port of the first electrically controlled three-way valve is connected with the first port of the solar heating device, and the third port of the second electrically controlled three-way valve is connected with the second port of the solar heating device through the electronic expansion valve and the evaporator. The processor executes the program to implement the control method of the air conditioner as claimed in any one of claims 1 to 4.

9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The computer program is executed by the processor to implement the control method of the air conditioner as claimed in any one of claims 1 to 4.

10. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the control method of the air conditioner as claimed in any one of claims 1 to 4.

11. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the control method of the air conditioner as claimed in any one of claims 1 to 4.

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