Light storage and air conditioning all-in-one machine, working method thereof and air conditioning system

Abstract

The invention relates to the technical field of air conditioning, in particular to a light storage air conditioner all-in-one machine, a working method thereof and an air conditioning system. The light storage air conditioner all-in-one machine comprises a shell, an air conditioner device and an energy storage device, the air conditioner device comprises a compressor, a four-way valve, a first heat exchanger, a throttling device and a fan, a fan bin, a compressor bin and an energy storage bin are formed in the shell, the energy storage device is located in the energy storage bin, and the first refrigerant inlet and outlet pipe penetrates through the energy storage bin. Through the refrigerant flow characteristic of the first refrigerant inlet and outlet pipe, the heat dissipation and heating functions of the energy storage bin are achieved, additional active cooling or heating equipment is not needed, and the complexity and energy consumption of the system are reduced. Natural heat exchange is conducted on the energy storage bin through the temperature characteristics of refrigerants in the first refrigerant inlet and outlet pipe in different seasons, the reliability of the energy storage device at different environment temperatures is guaranteed, meanwhile, the operation states of the compressor and the indoor unit heat exchanger are optimized, and the overall energy efficiency of the air conditioning system is improved.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, and more specifically, to a photovoltaic energy storage and air conditioning integrated unit, a working method thereof, and an air conditioning system. Background Art

[0002] Solar energy is the energy generated by the continuous nuclear fusion reaction process inside the sun. Solar energy is inexhaustible. Among them, solar photovoltaic power generation is an important way to utilize solar energy. Solar energy is a clean energy and does not produce pollution. Therefore, photovoltaic power generation has been vigorously developed. Air conditioning is a heat exchange device, including an indoor unit. The indoor unit is installed indoors. The heat or cold generated by the heating or cooling system of the air conditioner is sent to the room through the fan, so as to achieve the purpose of regulating the indoor temperature. Among them, the air conditioner consumes a lot of electricity during operation. In order to reduce the dependence on non-renewable energy, photovoltaic power generation can be used to power the air conditioner.

[0003] Energy storage batteries generate a lot of heat when charging and discharging. Excessive temperature will affect the performance and life of the battery. When the solar energy storage air conditioner is cooling in the summer, the heat brought by the operation of the air conditioner outdoor unit and the high temperature brought by the sun's radiation greatly affect the temperature of the energy storage battery. Therefore, the heat dissipation of the energy storage battery has become an urgent problem to be solved. Energy storage batteries are prone to not being able to charge and discharge normally under low temperature conditions. When the solar energy storage air conditioner is heating in the winter, the low temperature in winter plus the low temperature brought by the operation of the air conditioner outdoor unit will make the temperature of the energy storage module too low and unable to work normally. Therefore, heating the energy storage battery to the normal operating temperature in winter is also a problem that needs to be solved. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a photovoltaic energy storage and air conditioning integrated unit and its working method and air conditioning system.

[0005] In order to achieve the above-mentioned purpose, according to the first aspect of the application embodiment, a photovoltaic energy storage and air conditioning integrated unit is provided.

[0006] The integrated photovoltaic storage and air-conditioning unit provided according to the embodiment of the present application includes a shell, an air-conditioning device and an energy storage device. The air-conditioning device includes a compressor, a four-way valve, a first heat exchanger, a throttling device and a fan. A fan compartment, a compressor compartment and an energy storage compartment are formed in the shell. The fan and the first heat exchanger are located in the fan compartment, the compressor and the four-way valve are located in the compressor compartment, and the energy storage device is located in the energy storage compartment. The energy storage device is configured to provide electrical energy to the air-conditioning device. The D port of the four-way valve is connected to the exhaust port of the compressor through an exhaust pipe, the E port of the four-way valve is connected to a first refrigerant inlet and outlet pipe, the S port of the four-way valve is connected to the return port of the compressor through a return air pipe, the C port of the four-way valve is connected to the first heat exchanger through a first heat exchanger pipe, one end of the throttling device is connected to the first heat exchanger, and the other end is connected to a second refrigerant inlet and outlet pipe, and the first refrigerant inlet and outlet pipe runs through the energy storage compartment.

[0007] Furthermore, the first refrigerant inlet and outlet pipe is arranged in a serpentine shape in the energy storage bin.

[0008] Furthermore, the integrated photovoltaic energy storage and air conditioning unit has a cooling mode. In the cooling mode, the D port of the four-way valve is connected to the C port, and the E port is connected to the S port.

[0009] Furthermore, the integrated photovoltaic energy storage and air conditioning unit has a heating mode. In the heating mode, the D port of the four-way valve is connected to the E port, and the C port is connected to the S port.

[0010] Furthermore, the integrated photovoltaic energy storage and air conditioning unit also includes a control module. A controller compartment is also formed in the shell. The control module is located in the controller compartment. The control module is electrically connected to the compressor, the energy storage device, the fan, and the four-way valve respectively.

[0011] Furthermore, the photovoltaic energy storage and air conditioning integrated unit also includes a photovoltaic component connected to the shell, and the photovoltaic component is electrically connected to the control module.

[0012] Furthermore, the controller compartment is located at an upper layer inside the shell, and the fan compartment, the compressor compartment and the energy storage compartment are located at a lower layer inside the shell.

[0013] Furthermore, the fan compartment and the energy storage compartment are respectively located on both sides of the compressor compartment.

[0014] Furthermore, the integrated photovoltaic energy storage and air conditioning unit also includes a bypass pipeline, which is arranged in parallel with the portion of the first refrigerant inlet and outlet pipe that passes through the energy storage bin.

[0015] In order to achieve the above-mentioned purpose, according to the second aspect of the embodiment of the application, an air conditioning system is provided. The air conditioning system comprises the photovoltaic energy storage air conditioning integrated unit and an indoor unit provided in the first aspect of the application, the indoor unit comprises a second heat exchanger, and the first refrigerant inlet and outlet pipe and the second refrigerant inlet and outlet pipe are respectively connected to the two ends of the second heat exchanger.

[0016] In order to achieve the above-mentioned purpose, according to the third aspect of the embodiment of the application, a working method of a photovoltaic storage air-conditioning integrated machine is provided, which is applied to the photovoltaic storage air-conditioning integrated machine provided in the first aspect of the application, and the photovoltaic storage air-conditioning integrated machine is connected to an external power grid in a normal working state, and the working method includes:

[0017] Determine whether the photovoltaic modules meet the power generation conditions;

[0018] If the photovoltaic module meets the power generation condition, the photovoltaic module generates electricity to supply the air conditioning system, and when the photovoltaic module generates insufficient electricity, the external power grid provides additional power to the air conditioning system;

[0019] If the photovoltaic components do not meet the power generation conditions, it is evaluated whether the energy storage device has sufficient power. If the energy storage device has sufficient power, the energy storage device will supply power to the air-conditioning system. If the energy storage device has insufficient power, the external power grid will supply power to the air-conditioning system.

[0020] In order to achieve the above-mentioned purpose, according to the fourth aspect of the embodiment of the application, a working method of a photovoltaic storage air-conditioning integrated machine is provided, which is applied to the photovoltaic storage air-conditioning integrated machine provided in the first aspect of the application, and the photovoltaic storage air-conditioning integrated machine is not connected to an external power grid in a normal working state, and the working method includes:

[0021] Determine whether the photovoltaic modules meet the power generation conditions;

[0022] If the photovoltaic assembly meets the power generation conditions, the photovoltaic assembly generates electricity to supply the air conditioning system, and when the photovoltaic assembly generates insufficient electricity, the energy storage device provides additional power to the air conditioning system;

[0023] If the photovoltaic assembly does not meet the power generation conditions, it is evaluated whether the energy storage device has sufficient power. If the energy storage device has sufficient power, the energy storage device will supply power to the air-conditioning system. If the energy storage device does not have sufficient power, the air-conditioning system will operate at limited power or shut down.

[0024] The embodiment of the present application provides a photovoltaic storage air conditioning integrated unit and an air conditioning system with the following beneficial effects: the first refrigerant inlet and outlet pipe and the second refrigerant inlet and outlet pipe are used to connect the air conditioning device with the indoor unit to form a complete refrigerant circulation system, and the four-way valve is used to adjust the connection mode of each pipeline in the air conditioning device to realize the switching of the cooling and heating functions of the air conditioning device. In the hot summer, when the air conditioning device is cooling, the flow direction of the refrigerant in the first refrigerant inlet and outlet pipe is from the indoor unit to the photovoltaic storage air conditioning integrated unit, and the refrigerant flowing in the first refrigerant inlet and outlet pipe is low-temperature low-pressure steam. The first refrigerant inlet and outlet pipe passes through the energy storage bin, and the low-temperature refrigerant can cool the surrounding air, thereby cooling the energy storage bin, which can effectively reduce the temperature in the energy storage bin, and effectively avoid the risk of overheating of the energy storage device through natural cooling, which helps to extend the service life of the energy storage device and maintain its good performance. And the refrigerant temperature in the first refrigerant inlet and outlet pipe can be improved to a certain extent after the refrigerant in the energy storage bin undergoes heat exchange, and when it returns to the photovoltaic storage air conditioning integrated unit and enters the compressor, the suction temperature of the compressor can be significantly improved. In the cold winter, when the air conditioning device is heating, the flow direction of the refrigerant in the first refrigerant inlet and outlet pipe is from the light storage air conditioning integrated unit to the indoor unit, and the refrigerant flowing in the first refrigerant inlet and outlet pipe is high-temperature and high-pressure steam. The first refrigerant inlet and outlet pipe passes through the energy storage bin. The high-temperature refrigerant can heat up the surrounding air, thereby heating up the energy storage bin, which can effectively increase the temperature in the energy storage bin, prevent the energy storage device from being too low in temperature and unable to reach the optimal working state, and even cause the energy storage device to degrade or stop working, so as to maintain its good performance. In addition, the temperature of the refrigerant in the first refrigerant inlet and outlet pipe can be reduced to a certain extent after heat exchange in the energy storage bin. When it enters the heat exchanger of the indoor unit, the workload of the indoor unit heat exchanger can be significantly reduced.

[0025] Through the refrigerant flow characteristics of the first refrigerant inlet and outlet pipes, the heat dissipation and heating functions of the energy storage bin are realized, without the need for additional active cooling or heating equipment, reducing system complexity and energy consumption. The energy storage device can be prevented from overheating in summer and from overcooling in winter, ensuring the stable operation of the energy storage device in high and low temperature environments and extending its service life. The temperature characteristics of the refrigerant in the first refrigerant inlet and outlet pipes in different seasons are used to naturally exchange heat in the energy storage bin, ensuring the reliability of the energy storage device at different ambient temperatures, while optimizing the operating status of the compressor and indoor unit heat exchanger, and improving the overall energy efficiency of the air-conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0027] Figure 1A three-dimensional structural diagram of the integrated photovoltaic energy storage and air conditioning unit provided in an embodiment of the present application is schematically provided;

[0028] Figure 2 A schematic diagram of the internal structure connection relationship of a photovoltaic energy storage air conditioning integrated unit provided by an embodiment of the present application is given;

[0029] Figure 3 It is schematically given Figure 2 The internal structure connection relationship diagram of the photovoltaic energy storage air conditioning integrated unit in cooling mode is shown;

[0030] Figure 4 It is schematically given Figure 2 The internal structure connection relationship diagram of the photovoltaic energy storage air conditioning integrated unit in heating mode is shown;

[0031] Figure 5 A schematic diagram of the internal structure connection relationship of a photovoltaic energy storage air conditioning integrated unit provided in another embodiment of the present application is given;

[0032] Figure 6 A schematic diagram of the internal structure connection relationship of an air conditioning system provided by an embodiment of the present application is given;

[0033] Figure 7 It is schematically given Figure 6 The internal structure connection relationship diagram of the air conditioning system in cooling mode shown;

[0034] Figure 8 It is schematically given Figure 6 The internal structure connection relationship diagram of the air conditioning system in heating mode is shown;

[0035] Fig. 9 A flowchart of a first working method of the integrated photovoltaic storage and air conditioning device provided by the present application is schematically given;

[0036] Fig.10 A flowchart of the second optical working method of the integrated storage and air conditioning unit provided in the present application is schematically given.

[0037] In the figure:

[0038] 100, casing; 110, fan compartment; 120, compressor compartment; 130, energy storage compartment; 140, controller compartment; 310, compressor; 320, four-way valve; 330, first heat exchanger; 340, throttling device; 350, fan; 360, exhaust pipe; 370, return air pipe; 380, first heat exchanger pipe; 400, indoor unit; 410, second heat exchanger; 500, first refrigerant inlet and outlet pipe; 600, second refrigerant inlet and outlet pipe; 700, bypass pipeline; 800, photovoltaic module. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0040] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include units that are not explicitly listed or inherent to these products or devices.

[0041] In this application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0042] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0043] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0045] like Figure 1-5As shown, the main structure of the photovoltaic storage air-conditioning integrated machine disclosed in the embodiment of the present application includes a housing 100, an air-conditioning device and an energy storage device, wherein the air-conditioning device includes a compressor 310, a four-way valve 320, a first heat exchanger 330, a throttling device 340 and a fan 350, a fan compartment 110, a compressor compartment 120 and an energy storage compartment 130 are formed in the housing 100, the fan 350 and the first heat exchanger 330 are located in the fan compartment 110, the compressor 310 and the four-way valve 320 are located in the compressor compartment 120, the energy storage device is located in the energy storage compartment 130, and the energy storage device is configured In order to provide electric energy to the air-conditioning device, the D port of the four-way valve 320 is connected to the exhaust port of the compressor 310 through the exhaust pipe 360, the E port of the four-way valve 320 is connected to the first refrigerant inlet and outlet pipe 500, the S port of the four-way valve 320 is connected to the return air port of the compressor 310 through the return air pipe 370, the C port of the four-way valve 320 is connected to the first heat exchanger 330 through the first heat exchanger pipe 380, one end of the throttling device 340 is connected to the first heat exchanger 330, and the other end is connected to the second refrigerant inlet and outlet pipe 600, and the first refrigerant inlet and outlet pipe 500 runs through the energy storage bin 130.

[0046] In the above embodiment, the first refrigerant inlet and outlet pipe 500 and the second refrigerant inlet and outlet pipe 600 are used to connect the air-conditioning device with the indoor unit 400 to form a complete refrigerant circulation system, and the four-way valve 320 is used to adjust the connection method of each pipeline in the air-conditioning device to achieve the switching of the cooling and heating functions of the air-conditioning device.

[0047] In the hot summer, when the air conditioning device is cooling, the flow direction of the refrigerant in the first refrigerant inlet and outlet pipe 500 is from the indoor unit 400 to the integrated light storage air conditioner, and the refrigerant flowing in the first refrigerant inlet and outlet pipe 500 is low-temperature low-pressure steam. The first refrigerant inlet and outlet pipe 500 passes through the energy storage bin 130. The low-temperature refrigerant can cool the surrounding air, thereby cooling the energy storage bin 130, which can effectively reduce the temperature in the energy storage bin 130. The risk of overheating of the energy storage device is effectively avoided by natural cooling, which helps to extend the service life of the energy storage device and maintain its good performance. In addition, the refrigerant temperature in the first refrigerant inlet and outlet pipe 500 can be increased to a certain extent after heat exchange in the energy storage bin 130. When it returns to the integrated light storage air conditioner and enters the compressor 310, the suction temperature of the compressor 310 can be significantly increased.

[0048] In the cold winter, when the air conditioning device is heating, the flow direction of the refrigerant in the first refrigerant inlet and outlet pipe 500 is from the light storage air conditioning integrated unit to the indoor unit 400, and the refrigerant flowing in the first refrigerant inlet and outlet pipe 500 is high-temperature and high-pressure steam. The first refrigerant inlet and outlet pipe 500 passes through the energy storage bin 130. The high-temperature refrigerant can heat up the surrounding air, thereby heating up the energy storage bin 130, which can effectively increase the temperature in the energy storage bin 130, prevent the energy storage device from being too low in temperature and unable to reach the optimal working state, and even cause the energy storage device to degrade or stop working, so as to maintain its good performance. In addition, the temperature of the refrigerant in the first refrigerant inlet and outlet pipe 500 can be reduced to a certain extent after heat exchange in the energy storage bin 130. When it enters the heat exchanger of the indoor unit 400, the workload of the heat exchanger of the indoor unit 400 can be significantly reduced.

[0049] In summary, the heat dissipation and heating functions of the energy storage bin 130 are realized through the refrigerant flow characteristics of the first refrigerant inlet and outlet pipe 500, without the need for additional active cooling or heating equipment, thereby reducing system complexity and energy consumption. The energy storage device can be prevented from overheating in summer and from overcooling in winter, thereby ensuring the stable operation of the energy storage device in high and low temperature environments and extending its service life. The temperature characteristics of the refrigerant in the first refrigerant inlet and outlet pipe 500 in different seasons are utilized to naturally exchange heat in the energy storage bin 130, thereby ensuring the reliability of the energy storage device at different ambient temperatures, while optimizing the operating states of the compressor 310 and the indoor unit 400 heat exchanger, thereby improving the overall energy efficiency of the air-conditioning system.

[0050] In some embodiments, the first refrigerant inlet and outlet pipe 500 is arranged in a serpentine shape in the energy storage bin 130, thereby further improving the heat exchange efficiency of the energy storage bin 130 and achieving more effective temperature management of the energy storage device.

[0051] Specifically, the first refrigerant inlet and outlet pipe 500 is arranged in a serpentine path in the energy storage bin 130, so that its path is extended, forming a larger contact area with the air inside the energy storage bin 130 or the surface of the surrounding energy storage device, thereby increasing the heat exchange time and heat exchange area. The serpentine-arranged refrigerant pipe can evenly cover the relevant parts in the energy storage bin 130, ensure that the temperature distribution inside the energy storage bin 130 is more uniform, avoid local overheating or overcooling, and the uniform temperature distribution helps to keep the energy storage device within a suitable operating temperature range, reduce performance fluctuations caused by temperature differences, and improve the charging and discharging efficiency and life of the energy storage device. The structure of the serpentine refrigerant pipe is simple and easy to implement, does not require a complex control system, is easy to install and maintain, and has higher overall reliability. By introducing a serpentine refrigerant pipe layout in the energy storage bin 130, this implementation method further optimizes the thermal management capabilities of the integrated photovoltaic storage and air conditioning unit, enabling the equipment to adapt to more diverse working conditions while maintaining an efficient and stable operating state, further enhancing the user experience and system competitiveness.

[0052] In some embodiments, Figure 2 and 7 As shown, the integrated photovoltaic energy storage and air conditioning unit has a cooling mode. In the cooling mode, the D port of the four-way valve 320 is connected to the C port, and the E port is connected to the S port. Through this connection method, the circulation of the refrigerant can be achieved, thereby completing the cooling function.

[0053] The working principle of the refrigeration process is as follows: the refrigerant is compressed in the compressor 310 to form high-temperature and high-pressure steam, and enters the D port of the four-way valve 320 through the exhaust pipe 360. The D port of the four-way valve 320 is connected to the C port. The high-temperature and high-pressure refrigerant gas enters the first heat exchanger tube 380 through the C port of the four-way valve 320, and flows to the first heat exchanger 330 for heat exchange. The refrigerant cools and releases heat in the first heat exchanger 330 to become a liquid at room temperature and high pressure, and then enters the throttling device 340. The liquid refrigerant at room temperature and high pressure becomes a liquid at low temperature and low pressure after the pressure reduction and throttling of the throttling device 340, and then enters the second refrigerant inlet and outlet pipe 600, and flows out of the light storage space through the second refrigerant inlet and outlet pipe 600. The refrigerant flows into the second heat exchanger 410 in the indoor unit 400, and the low-temperature and low-pressure liquid refrigerant evaporates and absorbs heat in the second heat exchanger 410 to become a low-temperature and low-pressure steam refrigerant. Then it leaves the indoor unit 400 through the first refrigerant inlet and outlet pipe 500 and enters the E port of the four-way valve 320 in the light-storage air-conditioning integrated unit. In this process, it will flow through the energy storage bin 130 to complete the heat exchange with the energy storage bin 130. The E port of the four-way valve 320 is connected to the S port. The low-temperature and low-pressure steam refrigerant enters the first heat exchanger pipe 380 through the S port of the four-way valve 320, and flows to the first heat exchanger 330 for heat exchange. After entering the return air pipe 370, it re-enters the compressor 310 to complete compression and carry out the next cycle.

[0054] Through the connection method of the four-way valve 320, the flow direction of the refrigerant can be flexibly controlled to achieve rapid cooling. In the cooling mode, the first refrigerant inlet and outlet pipe 500 can be used to naturally cool the energy storage bin 130, effectively reducing the temperature of the energy storage device, extending its life and improving its performance.

[0055] In some embodiments, Figure 3 and 8 As shown, the integrated photovoltaic energy storage and air conditioning unit has a heating mode. In the heating mode, the D port of the four-way valve 320 is connected to the E port, and the C port is connected to the S port. Through this connection method, the circulation of the refrigerant can be realized, thereby completing the heating function.

[0056] The working principle of the refrigeration process is as follows: the refrigerant is compressed in the compressor 310 to form high-temperature and high-pressure steam, which enters the D port of the four-way valve 320 through the exhaust pipe 360. The D port of the four-way valve 320 is connected to the E port. The high-temperature and high-pressure refrigerant gas enters the first refrigerant inlet and outlet pipe 500 through the E port of the four-way valve 320, flows out of the light-storage air-conditioning integrated unit through the first refrigerant inlet and outlet pipe 500, and flows into the second heat exchanger 410 in the indoor unit 400. During this process, the refrigerant will flow through the energy storage bin 130 to complete the heat exchange with the energy storage bin 130. The high-temperature and high-pressure steam refrigerant is cooled and releases heat in the second heat exchanger 410 to become a normal temperature and high-pressure liquid refrigerant, and then passes through the second refrigerant. The inlet and outlet pipes 600 leave the indoor unit 400 and enter the throttling device 340 in the integrated light-storage air-conditioning unit. The normal temperature and high-pressure liquid refrigerant becomes a low-temperature and low-pressure liquid refrigerant after the pressure reduction and throttling action of the throttling device 340, and then enters the first heat exchanger 330. The low-temperature and low-pressure liquid refrigerant evaporates and absorbs heat in the first heat exchanger 330 and becomes a low-temperature and low-pressure steam refrigerant. It enters the C port of the four-way valve 320 through the first heat exchanger pipe 380. The C port of the four-way valve 320 is connected to the S port. The low-temperature and low-pressure steam refrigerant enters the return pipe 370 through the S port of the four-way valve 320 and then re-enters the compressor 310 to complete compression for the next cycle.

[0057] Through the connection mode of the four-way valve 320, the flow direction of the refrigerant can be flexibly controlled to achieve rapid heating. In the heating mode, the first refrigerant inlet and outlet pipe 500 can be used to naturally heat the energy storage bin 130, effectively increasing the temperature of the energy storage device.

[0058] In some embodiments, the integrated photovoltaic energy storage and air conditioning unit also includes a control module. A controller compartment 140 is also formed in the shell 100. The control module is located in the controller compartment 140. The control module is electrically connected to the compressor 310, the energy storage device, the fan 350, and the four-way valve 320, respectively, to achieve efficient control and coordinated operation of each component.

[0059] A controller compartment 140 is specially provided in the housing 100 for accommodating the control module, ensuring that the control module is physically isolated from other functional components to reduce interference. The controller compartment 140 can adopt a good heat dissipation design to ensure that the control module maintains a stable operating temperature during long-term operation. The control module is located in the controller compartment 140 and is connected and communicated with other core components of the photovoltaic storage air conditioning integrated machine through internal lines. For example, the control module can control the start, stop and working frequency of the compressor 310 according to signal data such as temperature sensors and pressure sensors, and optimize the cooling or heating effect of the air conditioning device; for another example, the control module can monitor the power state and temperature of the energy storage device, and when the energy storage device is fully or insufficiently charged, issue corresponding instructions to adjust the operating mode of the photovoltaic storage air conditioning integrated machine, and start the heating or cooling function of the energy storage device through the control module when necessary; for another example, the control module can be used to adjust the speed and running time of the fan 350, and realize efficient heat exchange according to the cooling or heating requirements of the air conditioning; for another example, the control module can be used to control the passage switching of the four-way valve 320 to realize the rapid conversion between the cooling mode and the heating mode of the air conditioning.

[0060] Through the unified management of the control module, the photovoltaic energy storage air conditioning integrated unit can dynamically adjust the working status of each component according to the ambient temperature, user needs and the status of the energy storage device, thereby improving the overall operating efficiency of the system. The centralized management and isolation design in the controller compartment 140 reduce electrical interference and ensure the stability of the system during long-term operation. In addition, the control module can also be used to integrate communication functions and connect with external smart devices to achieve remote control and real-time status monitoring.

[0061] In some embodiments, Figure 1 As shown, the photovoltaic storage air-conditioning integrated machine also includes a photovoltaic assembly 800 connected to the housing 100, and the photovoltaic assembly 800 is electrically connected to the control module to achieve efficient utilization and management of photovoltaic power generation. The photovoltaic assembly 800 is directly connected to the housing 100 of the photovoltaic storage air-conditioning integrated machine, and can provide renewable energy for the system. The specific installation position of the photovoltaic assembly 800 can be optimized according to the structure of the housing 100 and the lighting conditions to ensure maximum utilization of solar energy resources. The output end of the photovoltaic assembly 800 is connected to the control module through an electrical circuit. The circuit design may include an inverter, a DC-DC converter, or an energy storage management unit, which is used to adjust the electric energy output by the photovoltaic assembly 800 to adapt to the needs of the air-conditioning device and the energy storage device.

[0062] The photovoltaic module 800 is used to absorb solar energy in a lighted environment and convert it into electrical energy, which can be directly supplied to each power unit in the photovoltaic storage air conditioning integrated machine or stored in an energy storage device. The energy storage device can be used to store the electrical energy generated by the photovoltaic module 800, and supply power to the air conditioning system when the photovoltaic module 800 is short of power (such as on cloudy days and at night). The cooperation between the two can make full use of solar energy and reduce energy costs. The problem of discontinuous power supply of the photovoltaic module 800 can be solved through the energy storage device to ensure continuous power supply to the air conditioning system; it can also reduce dependence on the power grid and realize efficient and stable energy supply. It not only realizes the utilization of clean energy, but also reduces energy consumption and operating costs.

[0063] Optionally, the photovoltaic module 800 converts solar energy into electrical energy and supplies it to the air-conditioning device first, reducing dependence on the external power grid. When the electrical energy generated by the photovoltaic module 800 exceeds the demand of the air-conditioning device, the control module can use the excess electrical energy to charge the energy storage device, or feed it into the external power grid (if an external power grid is connected) according to demand. The control module can also monitor the power generation status of the photovoltaic module 800 in real time, including parameters such as output voltage, current and power, and dynamically adjust the working mode of the air-conditioning device and the energy storage device according to changes in light intensity to ensure efficient operation of the system. When the photovoltaic module 800 generates insufficient power, the control module can intelligently adjust the operating mode of the air-conditioning device (such as power-limited operation) according to the power situation of the energy storage device to ensure the stable operation of the equipment. When the photovoltaic module 800 generates excess electrical energy, the control module can distribute the electrical energy to the energy storage device to improve energy utilization efficiency. In the case of insufficient power generation of the photovoltaic module 800, the energy storage device can be started by the control module to supply power to the air-conditioning device to maintain the normal operation of the air-conditioning.

[0064] In summary, by directly supplying power through the photovoltaic module 800, the energy consumption of the external power grid can be reduced, a green and environmentally friendly operating mode can be achieved, photovoltaic power generation, energy storage and air conditioning loads can be organically combined to achieve efficient distribution and use of energy. It is more suitable for off-grid areas or areas with power shortages, and at the same time improves the market competitiveness of the all-in-one machine. By integrating the photovoltaic module 800 on the housing 100 and electrically connecting it to the control module, the photovoltaic storage and air conditioning all-in-one machine realizes efficient utilization and management of solar energy, making the system more energy-saving, environmentally friendly and intelligent during operation, effectively enhancing the independence and reliability of the photovoltaic storage and air conditioning all-in-one machine, and providing strong support for its application in various scenarios.

[0065] In some embodiments, Figure 1As shown, the controller compartment 140 is located at the upper layer inside the shell 100 , and the fan compartment 110 , the compressor compartment 120 and the energy storage compartment 130 are located at the lower layer inside the shell 100 . The integrated photovoltaic energy storage and air conditioning all-in-one proposed in this embodiment integrates the photovoltaic module 800, the external machine structure (compressor 310, fan 350, four-way valve 320, etc.) in the air-conditioning system, the energy storage device and the control module on the shell 100 or in each compartment inside the shell 100. The relative positions of the modules have been fixed, and there is no need to temporarily determine the installation positions of the photovoltaic module 800, the various structures of the air-conditioning device and the energy storage device according to the installation environment during the installation process, thereby reducing the installation cost. In addition, the wiring between the photovoltaic module 800, the external machine structure (compressor 310, four-way valve 320 and fan 350, etc.) in the air-conditioning system, the energy storage device and the control module can be connected and installed and wired inside the all-in-one machine. The wiring is short, which can effectively reduce line loss and maximize the use of the electrical energy of the photovoltaic module 800 and the energy storage device. In addition, the various connection interfaces between the structures can be reduced during the design.

[0066] In addition, this layout reasonably distinguishes each functional area, which helps each module to operate independently, improves the stability and reliability of the system, and allows technicians to quickly locate problems based on the functions of different compartments, thereby improving maintenance efficiency. Since the control module generates a large amount of heat during operation, the fan compartment 110 and the controller compartment 140 are arranged up and down, and the fan compartment 110 can be used to form a certain amount of heat dissipation for the controller compartment 140, preventing the control module from overheating and extending the service life of the equipment.

[0067] In some embodiments, Figure 1 As shown, the fan compartment 110 and the energy storage compartment 130 are respectively located on both sides of the compressor compartment 120. Since the compressor 310 also generates a large amount of heat during operation, the fan compartment 110 is arranged adjacent to the compressor compartment 120, and the fan compartment 110 can be used to form a certain heat dissipation for the compressor compartment 120, thereby preventing the compressor 310 from overheating and extending the service life of the equipment.

[0068] In addition, the fan compartment 110 and the energy storage compartment 130 are arranged on both sides of the compressor compartment 120, which helps to make the overall weight distribution of the equipment more balanced and improve the structural stability of the equipment. During transportation and installation, this balanced weight distribution is conducive to the stable placement and fixation of the equipment, reducing the difficulty of transportation and installation.

[0069] In summary, this design achieves multiple advantages such as system functional zoning, improved heat dissipation efficiency, balanced weight distribution, and maximum space utilization by rationally distributing the fan compartment 110, compressor compartment 120, energy storage compartment 130, and controller compartment 140 in different areas within the shell 100, providing a more optimized structural layout for the integrated photovoltaic energy storage and air conditioning unit.

[0070] In some embodiments, Figure 5 As shown, the integrated photovoltaic energy storage and air conditioning unit further includes a bypass pipeline 700 , and the bypass pipeline 700 is arranged in parallel with the portion of the first refrigerant inlet and outlet pipe 500 that passes through the energy storage bin 130 .

[0071] The bypass line 700 and the first refrigerant inlet and outlet pipe 500 are divided and merged outside the energy storage bin 130 to form a parallel relationship. The first refrigerant inlet and outlet pipe 500 runs through the energy storage bin 130 for heat exchange with the energy storage device, while the bypass line 700 bypasses the energy storage bin 130 to directly provide a flow path. A control valve can be provided on the bypass line 700 to adjust whether the refrigerant passes through the energy storage bin 130 for heat exchange according to the operating mode and demand, or to control the flow rate of the refrigerant flowing through the energy storage bin 130.

[0072] In the summer cooling mode, if the temperature of the energy storage device is suitable or no additional cooling is required, the control valve on the bypass line 700 can be opened to allow part or all of the refrigerant to bypass the energy storage bin 130, thereby reducing unnecessary heat exchange and improving system efficiency. In the winter heating mode, if the temperature of the energy storage device is high and no further heating is required, the high-temperature refrigerant can also be directly transported through the bypass line 700 to avoid overheating of the energy storage device. The bypass line 700 provides a flexible refrigerant flow control method to achieve optimal energy distribution under different working conditions, reduce heat loss or unnecessary heat exchange processes, and improve the operating efficiency of the photovoltaic storage air conditioning integrated unit. In addition, when the energy storage device does not need to adjust the temperature, the setting of the bypass line 700 can reduce the flow resistance of the refrigerant in the energy storage bin 130, thereby reducing the system operating load and extending the service life of the equipment. To summarize, by setting up the bypass pipe 700 and connecting it in parallel with the first refrigerant inlet and outlet pipe 500 that runs through the energy storage bin 130, the photovoltaic energy storage and air conditioning integrated unit realizes flexible regulation of the refrigerant flow direction, which not only optimizes the thermal management efficiency, but also improves the stability and energy efficiency of the system, providing important support for the intelligence and multi-scenario adaptability of the photovoltaic energy storage and air conditioning integrated unit.

[0073] like Figure 6-8As shown, an embodiment of the present application further provides an air-conditioning system, which includes an indoor unit 400 and a light storage air-conditioning integrated unit provided in the foregoing embodiment of the present application, wherein the indoor unit 400 includes a second heat exchanger 410, and the first refrigerant inlet and outlet pipe 500 and the second refrigerant inlet and outlet pipe 600 are respectively connected to the two ends of the second heat exchanger 410. The indoor unit 400 is a key component of the air-conditioning system, and is mainly responsible for cooling or heating the air. For example, the second heat exchanger 410 in the indoor unit 400 can absorb the heat of the indoor air through the evaporation process of the refrigerant. The second heat exchanger 410 is usually coordinated with the indoor air flow, and the cooled air is sent into the room through a fan to adjust the temperature and humidity of the indoor environment.

[0074] The present application also provides a working method of the photovoltaic storage air conditioning integrated machine, which is applied to the photovoltaic storage air conditioning integrated machine provided in the above embodiments of the present application. The working method can be divided into two cases, one for the photovoltaic storage air conditioning integrated machine connected to an external power grid in normal working state and the other for the photovoltaic storage air conditioning integrated machine not connected to an external power grid in normal working state.

[0075] like Fig. 9 As shown, for a photovoltaic energy storage air conditioning integrated device connected to an external power grid in a normal working state, the working method of the photovoltaic energy storage air conditioning integrated device includes:

[0076] Determine whether the photovoltaic module 800 meets the power generation conditions;

[0077] If the photovoltaic assembly 800 meets the power generation condition, the photovoltaic assembly 800 generates electricity to supply the air conditioning device, and when the photovoltaic assembly 800 generates insufficient electricity, the external power grid provides additional power to the air conditioning device;

[0078] If the photovoltaic assembly 800 does not meet the power generation conditions, it is evaluated whether the energy storage device has sufficient power. If the energy storage device has sufficient power, the energy storage device supplies power to the air-conditioning device. If the energy storage device has insufficient power, the external power grid supplies power to the air-conditioning device.

[0079] First, it is determined whether the photovoltaic module 800 can generate electricity under the current conditions, which usually depends on the light intensity and the health status of the photovoltaic module 800. If the photovoltaic module 800 meets the power generation conditions, the photovoltaic module 800 generates electricity by absorbing sunlight and directly supplies the generated electricity to the air-conditioning device to drive the air-conditioning device to work. If the power generation of the photovoltaic module 800 is not enough to meet all the needs of the air-conditioning device, the external power grid will automatically provide supplementary power to the air-conditioning device to ensure the stable operation of the air-conditioning device.

[0080] When the photovoltaic module 800 cannot meet the power generation conditions, the system will evaluate whether the energy storage device has sufficient power. If the energy storage device has sufficient power, the system will obtain power from the energy storage device and continue to provide power to the air conditioning device. If the energy storage device does not have enough power to meet the demand, the system will automatically switch to the external grid power supply mode and supply power through the external grid to ensure the operation of the air conditioning device.

[0081] This working method can ensure that when the light conditions are suitable, the photovoltaic module 800 will first power the air conditioning device. When the photovoltaic module 800 cannot generate electricity, the energy storage device will supply electricity as a backup power source. When the photovoltaic and energy storage power is insufficient, the external power grid will be the final power source. The intelligent and adaptive capabilities of the photovoltaic storage air conditioning integrated machine are improved, and the power supply mode can be automatically adjusted according to different environmental conditions to achieve maximum energy utilization efficiency and improve the stability and operation efficiency of the air conditioning device.

[0082] On the basis of the above implementation, the working method further includes: while the photovoltaic assembly 800 generates electricity to supply the air conditioning device, evaluating whether the energy storage device needs to be charged; if the energy storage device needs to be charged, the excess electricity supplied by the photovoltaic assembly 800 other than the air conditioning device is used to charge the energy storage device; if the energy storage device does not need to be charged, the excess electricity supplied by the photovoltaic assembly 800 other than the air conditioning device is fed to the external power grid. Specifically, while the photovoltaic assembly 800 generates electricity and supplies the air conditioning device, the system will evaluate in real time whether the energy storage device is fully charged and whether further charging is required. This evaluation process can be judged based on the current power of the energy storage device and the set power threshold. If the energy storage device is insufficient and needs to be charged, the system will use the excess electricity generated by the photovoltaic assembly 800 (i.e., the part that exceeds the demand of the air conditioning device) to charge the energy storage device, so that when there is sufficient light during the day, the power generation capacity of the photovoltaic assembly 800 can be used to charge the energy storage device, so that the energy storage device can provide backup power for nighttime or insufficient light. If the energy storage device is fully charged or has sufficient power, the system will feed the excess power generated by the photovoltaic module 800 to the external power grid. This can effectively utilize the surplus power of solar power generation and avoid waste, and feed power back to the external power grid, which may generate certain economic benefits or further power regulation.

[0083] That is, this embodiment can realize that the photovoltaic module 800 is used to charge the air conditioning device and the energy storage device first. When the photovoltaic power generation is sufficient, the air conditioning device and the energy storage device will be supplied with electricity first, and the power of the photovoltaic module 800 can be effectively managed, and the remaining power can be allocated to the energy storage device or the external power grid as needed, ensuring that the energy storage device can be charged when needed, and feeding back power to the external power grid when there is excess power. This intelligent power management method helps to improve energy utilization efficiency, reduce power waste, and provide more flexibility and adaptability for system operation, thereby optimizing the overall performance of the photovoltaic storage air conditioning integrated unit.

[0084] like Fig.10 As shown, for a photovoltaic energy storage air conditioning integrated device that is not connected to an external power grid in a normal working state, the working method of the photovoltaic energy storage air conditioning integrated device includes:

[0085] Determine whether the photovoltaic module 800 meets the power generation conditions;

[0086] If the photovoltaic assembly 800 meets the power generation condition, the photovoltaic assembly 800 generates electricity to supply the air conditioning device, and when the photovoltaic assembly 800 generates insufficient electricity, the energy storage device provides additional power to the air conditioning device;

[0087] If the photovoltaic assembly 800 does not meet the power generation conditions, it is evaluated whether the energy storage device has sufficient power. If the energy storage device has sufficient power, the energy storage device supplies power to the air-conditioning device. If the energy storage device does not have sufficient power, the air-conditioning device operates at limited power or shuts down.

[0088] It should be noted that the above-mentioned situation of not being connected to the external power grid in normal working condition may be that the photovoltaic energy storage and air conditioning integrated unit is not connected to the external power grid, or it may be that the photovoltaic energy storage and air conditioning integrated unit is connected to the external power grid, but the external power grid is not in normal working condition.

[0089] In this embodiment, the system first determines whether the photovoltaic assembly 800 is in an effective power generation state. This usually depends on the light intensity, ambient temperature and the working efficiency of the photovoltaic assembly 800 itself. If the photovoltaic assembly 800 receives enough light and can generate effective electricity, the power generation condition is met. When the power generation condition is met, the photovoltaic assembly 800 first supplies electricity to the air conditioning device to drive the air conditioning to operate. If the power generation of the photovoltaic assembly 800 is not enough to fully meet the needs of the air conditioning device, the system will automatically switch to the energy storage device and use the energy storage device to supplement the power to ensure that the air conditioning device can continue to work normally.

[0090] If the photovoltaic module 800 cannot meet the power generation conditions (for example, it cannot generate power due to cloudy days or nighttime), the system will continue to evaluate the power of the energy storage device. If the power of the energy storage device is sufficient, the energy storage device will provide power to the air conditioning device to ensure the normal operation of the air conditioning device; if the power of the energy storage device is insufficient and is not enough to supply power, the system will take the following measures:

[0091] Air conditioning unit power limit operation - If the air conditioning unit is allowed to operate at a low power, the system may limit the air conditioning's power output to make it run at a lower energy consumption.

[0092] Shutdown - If the energy storage device is extremely low and cannot support the operation of the air conditioning unit, the system will automatically stop the air conditioning operation to save the remaining power and avoid the energy storage device being completely exhausted.

[0093] In summary, the working method of this embodiment can realize the priority use of photovoltaic power generation. The system first attempts to use the photovoltaic module 800 to generate electricity and supply power to the air-conditioning device. When the photovoltaic power generation is insufficient, the energy storage device provides supplementary power to ensure the continuous operation of the air-conditioning. When the power demand cannot be met, the system adopts a power limit or shutdown strategy to ensure that the power of the energy storage device is not over-consumed. This method can ensure that even when it is not connected to the external power grid, the photovoltaic storage air-conditioning integrated unit can still effectively manage the power supply, ensure that the air-conditioning device operates under limited power resources, and avoid excessive discharge of the energy storage device.

[0094] Based on the above implementation mode, the working method also includes: while the photovoltaic component 800 generates electricity to supply the air-conditioning device, evaluating whether the energy storage device needs to be charged; if the energy storage device needs to be charged, the excess electricity supplied by the photovoltaic component 800 other than the air-conditioning device is used to charge the energy storage device; if the energy storage device does not need to be charged, the photovoltaic component 800 is operated at limited power.

[0095] In this embodiment, when the photovoltaic assembly 800 generates electricity and supplies power to the air conditioning device, the system will evaluate the power state of the energy storage device in real time to determine whether charging is required. By monitoring the remaining power of the energy storage device, it is determined whether it is lower than the preset charging threshold. If the power of the energy storage device is insufficient, the system will use the excess power generated by the photovoltaic assembly 800 (i.e., the remaining power other than the power provided by the photovoltaic assembly 800 to the air conditioning device) to charge the energy storage device, so as to ensure that the energy storage device can maintain sufficient power to provide backup power when the photovoltaic assembly 800 generates insufficient power in the future. If the power of the energy storage device is sufficient and does not need to be charged, the system will use the power generated by the photovoltaic assembly 800 to supply the air conditioning device, and the output of the photovoltaic assembly 800 will be limited to power operation. By limiting the power operation, the system can prevent the photovoltaic assembly 800 from generating excessive power and causing unnecessary power loss, while ensuring that the air conditioning device and the energy storage device obtain the most reasonable power distribution. This working method can improve the power utilization rate, ensure that the energy storage device is in a good charging state, and avoid waste caused by excess power of the photovoltaic assembly 800, and optimize the power management between the photovoltaic assembly 800, the energy storage device and the air conditioning device.

[0096] On the basis of the above implementation mode, the working method also includes: when the photovoltaic component 800 generates insufficient electricity, the energy storage device supplies power to the air-conditioning device, and at the same time evaluates whether the power of the energy storage device is sufficient. If the power of the energy storage device is sufficient, the energy storage device supplies power to the air-conditioning device; if the power of the energy storage device is insufficient, the air-conditioning device operates at limited power or shuts down.

[0097] In this embodiment, when the power generation of the photovoltaic module 800 is insufficient to meet the needs of the air-conditioning device, the system will automatically switch to the energy storage device to provide electricity. At this time, the energy storage device serves as a power source to ensure the continuous operation of the air-conditioning device. In the process of the energy storage device replenishing power to the air-conditioning device, the system will monitor the power status of the energy storage device in real time, and determine whether it is sufficient to continue to provide power to the air-conditioning device by continuously evaluating the power of the energy storage device. If the power of the energy storage device is sufficient, the system will continue to supply power from the energy storage device to the air-conditioning device to ensure the normal operation of the air-conditioning device. If the power of the energy storage device is insufficient to support the operation of the air-conditioning device, the system will take measures to limit power operation or shut down.

[0098] Specifically, if the minimum operating requirements of the air conditioner can still be met by the power provided by the energy storage device, the system will limit the power output of the air conditioner, thereby saving the energy storage device's power and extending its use time. If the energy storage device's power is too low to meet the minimum operating requirements of the air conditioner, the system will automatically shut down to protect the energy storage device from over-discharge.

[0099] In the above implementation, when the photovoltaic assembly 800 generates insufficient electricity, the energy storage device will provide electricity, and the system will evaluate the power status of the energy storage device in real time. If the energy storage power is sufficient, the power supply will continue; if the energy storage power is insufficient, the system will adopt a power limiting or shutdown strategy to ensure the sustainable operation of the system. Through intelligent control strategies, it is ensured that the energy storage device will not be over-discharged. At the same time, the air-conditioning device can ensure its long-term stable operation by limiting power operation or shutting down when there is insufficient power. The intelligence level of the photovoltaic storage air-conditioning device has been improved, making the use of electricity more efficient and reasonable. It can flexibly adjust the working state of the air-conditioning device under variable power supply conditions, protect the energy storage device and extend the service life of the system.

[0100] Some embodiments in this specification are described in a progressive or parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other.

[0101] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A solar energy storage air conditioning integrated machine, characterized in that: It includes a shell, an air-conditioning device and an energy storage device. The air-conditioning device includes a compressor, a four-way valve, a first heat exchanger, a throttling device and a fan. A fan compartment, a compressor compartment and an energy storage compartment are formed in the shell. The fan and the first heat exchanger are located in the fan compartment, the compressor and the four-way valve are located in the compressor compartment, and the energy storage device is located in the energy storage compartment. The energy storage device is configured to provide electrical energy to the air-conditioning device. The D port of the four-way valve is connected to the exhaust port of the compressor through an exhaust pipe, the E port of the four-way valve is connected to a first refrigerant inlet and outlet pipe, the S port of the four-way valve is connected to the return port of the compressor through a return air pipe, the C port of the four-way valve is connected to the first heat exchanger through a first heat exchanger pipe, one end of the throttling device is connected to the first heat exchanger, and the other end is connected to a second refrigerant inlet and outlet pipe, and the first refrigerant inlet and outlet pipe runs through the energy storage compartment.

2. The integrated photovoltaic energy storage and air conditioning device according to claim 1, characterized in that: The first refrigerant inlet and outlet pipe is arranged in a serpentine shape in the energy storage bin.

3. The integrated photovoltaic energy storage and air conditioning device according to claim 2, characterized in that: The integrated photovoltaic and energy storage air conditioner has a cooling mode. In the cooling mode, the D port of the four-way valve is connected to the C port, and the E port is connected to the S port.

4. The integrated photovoltaic energy storage and air conditioning device according to claim 2, characterized in that: The integrated photovoltaic and energy storage air conditioner has a heating mode. In the heating mode, the D port of the four-way valve is connected to the E port, and the C port is connected to the S port.

5. The integrated photovoltaic energy storage and air conditioning device according to claim 1, characterized in that: It also includes a control module. A controller compartment is formed in the shell. The control module is located in the controller compartment. The control module is electrically connected to the compressor, the energy storage device, the fan, and the four-way valve respectively.

6. The integrated photovoltaic energy storage and air conditioning device according to claim 5, characterized in that: It also includes a photovoltaic component connected to the shell, and the photovoltaic component is electrically connected to the control module.

7. The integrated photovoltaic energy storage and air conditioning device according to claim 5, characterized in that: The controller compartment is located at the upper layer inside the shell, and the fan compartment, the compressor compartment and the energy storage compartment are located at the lower layer inside the shell.

8. The integrated photovoltaic energy storage and air conditioning device according to claim 7, characterized in that: The fan compartment and the energy storage compartment are respectively located on both sides of the compressor compartment.

9. The integrated photovoltaic energy storage and air conditioning device according to claim 1, characterized in that: It also includes a bypass pipeline, which is arranged in parallel with the part of the first refrigerant inlet and outlet pipe that passes through the energy storage bin.

10. An air conditioning system, characterized in that: include: The integrated photovoltaic storage and air conditioning unit according to any one of claims 1 to 9; The indoor unit includes a second heat exchanger, and the first refrigerant inlet and outlet pipes and the second refrigerant inlet and outlet pipes are respectively connected to two ends of the second heat exchanger.

11. A working method of a photovoltaic energy storage and air conditioning integrated device, applied to the photovoltaic energy storage and air conditioning integrated device according to any one of claims 1 to 9, wherein the photovoltaic energy storage and air conditioning integrated device is connected to an external power grid in a normal working state, characterized in that: The working method comprises: Determine whether the photovoltaic modules meet the power generation conditions; If the photovoltaic module meets the power generation condition, the photovoltaic module generates electricity to supply the air conditioning system, and when the photovoltaic module generates insufficient electricity, the external power grid provides additional power to the air conditioning system; If the photovoltaic assembly does not meet the power generation conditions, it is evaluated whether the energy storage device has sufficient power. If the energy storage device has sufficient power, the energy storage device will supply power to the air-conditioning system. If the energy storage device has insufficient power, the external power grid will supply power to the air-conditioning system.

12. A method for operating a photovoltaic power plant and air conditioning integrated device, applied to the photovoltaic power plant and air conditioning integrated device as claimed in any one of claims 1 to 9, wherein the photovoltaic power plant and air conditioning integrated device is not connected to an external power grid in a normal working state, and characterized in that: The working method comprises: Determine whether the photovoltaic modules meet the power generation conditions; If the photovoltaic assembly meets the power generation conditions, the photovoltaic assembly generates electricity to supply the air conditioning system, and when the photovoltaic assembly generates insufficient electricity, the energy storage device provides additional power to the air conditioning system; If the photovoltaic assembly does not meet the power generation conditions, it is evaluated whether the energy storage device has sufficient power. If the energy storage device has sufficient power, the energy storage device will supply power to the air-conditioning system. If the energy storage device does not have sufficient power, the air-conditioning system will operate at limited power or shut down.

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