A photovoltaic-assisted heat pump with photothermal synergistic heating function

Abstract

This utility model discloses a photovoltaic-assisted heat pump with photothermal synergistic heating function, relating to the field of air source heat pump technology. It includes a bottom housing, with a compressor fixedly connected to the right side of the bottom end inside the bottom housing. A heat exchanger is installed at the middle position of the bottom end inside the bottom housing. An auxiliary heating component for photovoltaic synergistic heating is installed inside the top housing. This photovoltaic-assisted heat pump with photothermal synergistic heating function incorporates a lithium battery, a PLC controller, a temperature sensor, a photovoltaic panel, a square frame, and heating wires. During operation, when the temperature sensor detects a temperature below -15 degrees Celsius, the heating wires are powered on, raising the temperature of the air passing through the evaporator. The photovoltaic panel continuously generates electricity under sunlight, and the electricity is stored in the lithium battery to power the heating wires. This achieves energy saving and emission reduction, realizing the function of photovoltaic auxiliary heating and solving the problem of devices lacking photovoltaic auxiliary heating capabilities.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump technology, specifically a photovoltaic-assisted heat pump with photothermal synergistic heating function. Background Technology

[0002] An air source heat pump is an energy-saving device that uses high-grade energy to transfer heat from a low-grade heat source, air, to a high-grade heat source. Air, as the low-grade heat source of the heat pump, is inexhaustible, readily available, and can be obtained free of charge. Moreover, air source heat pumps are relatively convenient to install and use.

[0003] However, when the ambient temperature is below -15℃, although the low-temperature heat pump can be turned on normally, its energy efficiency drops significantly, the defrosting time is prolonged, and the actual heating effect indoors is generally not very good, lacking the function of photovoltaic auxiliary heating.

[0004] Now, a novel photovoltaic-assisted heat pump with photothermal synergistic heating function is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a photovoltaic-assisted heat pump with photothermal synergistic heating function to solve the problem mentioned in the background art of not having photovoltaic auxiliary heating function.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic-assisted heat pump with photothermal synergistic heating function, comprising a bottom housing, a compressor fixedly connected to the right side of the bottom end inside the bottom housing, a heat exchanger installed at the middle position of the bottom end inside the bottom housing, a lithium battery fixedly connected to the left side of the bottom end inside the bottom housing, a PLC controller installed at the top of the lithium battery, a top housing fixedly connected to the top of the bottom housing, a fan installed at the middle position of the top of the top housing, and dustproof nets fixedly connected to the front and rear ends of the top housing, respectively. Two sets of evaporators are obliquely fixedly connected to the middle position of the bottom inside the top shell. A distribution pipe is longitudinally fixedly connected to the right side of the bottom inside the top shell. Cylindrical shells are horizontally fixedly connected to the front and rear ends of the top of the distribution pipe. A gas interface is welded to the bottom right side of the top shell. A solenoid valve is installed between the distribution pipe and the gas interface. A gas burner is fixedly connected to the right side inside the cylindrical shell. An ignition needle is installed on the right side of the bottom of the cylindrical shell. Multiple ventilation slots are opened on the outer side of the cylindrical shell. A photovoltaic-assisted heating auxiliary heating component is installed inside the top shell.

[0007] The auxiliary heating component includes two sets of square frames, which are fixedly connected to the front and rear ends of the top shell. Multiple sets of heating wires are fixedly connected between the upper and lower ends of the square frames. A temperature sensor is installed at the bottom left side of the top shell, and photovoltaic panels are fixedly connected to the top of the left and right sides of the top shell.

[0008] As a further technical solution of this utility model, the top ends of the photovoltaic power generation panel and the top shell are flush, and the photovoltaic power generation panel is symmetrically distributed about the vertical center line of the top shell.

[0009] As a further technical solution of this utility model, the left and right sides of the square frame are respectively connected to the left and right sides inside the top shell, and there is a distance between the square frame and the dustproof net.

[0010] As a further technical solution of this utility model, the heating wires are arranged at equal intervals, and the lithium battery, PLC controller, temperature sensor, photovoltaic power generation panel and heating wires are electrically connected.

[0011] As a further technical solution of this utility model, the distribution pipe and the gas burner are internally connected, and the PLC controller and the solenoid valve are electrically connected.

[0012] As a further technical solution of this utility model, a long strip fixing plate is horizontally fixedly connected to the top of the inside of the top shell, and a gas sensor is installed at the middle position of the bottom end of the long strip fixing plate. The vertical center lines of the fan and the gas sensor coincide, and the PLC controller, solenoid valve and gas sensor are electrically connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the photovoltaic-assisted heat pump with photothermal synergistic heating function not only realizes the function of photovoltaic auxiliary heating, but also realizes the function of gas auxiliary heating, and also realizes the function of gas leak detection;

[0014] Equipped with a lithium battery, PLC controller, temperature sensor, photovoltaic panel, square frame, and heating wire, the system operates by circulating refrigerant within the copper tubes of the evaporator, exchanging heat with the outside air. The low-temperature, low-pressure refrigerant is drawn into the compressor and compressed into a high-temperature, high-pressure gaseous refrigerant, which then enters the heat exchanger, releasing heat and raising the temperature of the water inside. It then returns to the evaporator as a low-temperature, low-pressure refrigerant. The negative pressure created by the fan allows outside air to pass through a dust filter and blow onto the evaporator. In winter, when temperatures are low and frost forms on the evaporator surface, the temperature sensor detects a temperature below -15 degrees Celsius, triggering the heating wire to heat up the air passing through the evaporator. The photovoltaic panel continuously generates electricity under sunlight, which is stored in the lithium battery to power the heating wire, thus achieving energy conservation and emission reduction, and realizing the function of photovoltaic auxiliary heating.

[0015] The system is equipped with a cylindrical shell, distribution pipe, solenoid valve, gas interface, gas burner, ignition needle, and ventilation slot. When in use, the gas pipeline is connected to the gas interface. In winter, when the temperature is low and there is insufficient sunlight, and the lithium battery is depleted, the solenoid valve opens automatically. Gas is sprayed out from the gas burner through the distribution pipe, and the ignition needle emits an electric spark to ignite the gas. The gas burns in the cylindrical shell and heats the cylindrical shell, bringing it to a high temperature. The heat radiates to the evaporator, allowing it to defrost and thaw quickly. The ventilation slot facilitates the flow of oxygen inside the cylindrical shell, thus realizing the function of gas auxiliary heating.

[0016] By incorporating a solenoid valve, a long fixing plate, and a gas sensor, when the ignition needle fails and the gas burner fails to ignite, the gas sensor at the bottom of the long fixing plate detects that the gas concentration exceeds the standard, and the solenoid valve automatically closes to stop the gas supply, thus realizing the function of gas leak detection. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a side cross-sectional view of the top shell structure of this utility model;

[0019] Figure 3 This is a magnified front view of the square frame structure of this utility model;

[0020] Figure 4 This is a magnified structural diagram of a partial cross-section of the cylindrical shell of this utility model.

[0021] In the diagram: 1. Bottom housing; 2. Compressor; 3. Heat exchanger; 4. Lithium battery; 5. PLC controller; 6. Temperature sensor; 7. Photovoltaic panel; 8. Square frame; 9. Heating wire; 10. Top housing; 11. Fan; 12. Dustproof net; 13. Evaporator; 14. Cylindrical shell; 15. Distribution pipe; 16. Solenoid valve; 17. Gas interface; 18. Gas burner; 19. Ignition needle; 20. Ventilation slot; 21. Long strip fixing plate; 22. Gas sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figure 1-4A photovoltaic-assisted heat pump with photothermal synergistic heating function includes a bottom shell 1, a compressor 2 fixedly connected to the right side of the bottom end of the bottom shell 1, a heat exchanger 3 installed at the middle position of the bottom end of the bottom shell 1, a lithium battery 4 fixedly connected to the left side of the bottom end of the bottom shell 1, a PLC controller 5 installed at the top of the lithium battery 4, a top shell 10 fixedly connected to the top of the bottom shell 1, a fan 11 installed at the middle position of the top of the top of the top shell 10, dustproof nets 12 fixedly connected to the front and rear ends of the top shell 10 respectively, two sets of evaporators 13 fixedly connected obliquely at the middle position of the bottom end of the top shell 10, and a photovoltaic-assisted heating auxiliary heating component installed inside the top shell 10.

[0024] Please see Figure 1-4 A photovoltaic-assisted heat pump with photothermal synergistic heating function also includes an auxiliary heating component. The auxiliary heating component includes two sets of square frames 8, which are fixedly connected to the front and rear ends of the top housing 10. Multiple sets of heating wires 9 are fixedly connected between the upper and lower ends of the square frames 8. A temperature sensor 6 is installed at the bottom of the left side of the top housing 10. Photovoltaic power generation panels 7 are fixedly connected to the top of the left and right sides of the top housing 10, respectively.

[0025] The tops of the photovoltaic power generation panel 7 and the top shell 10 are flush. The photovoltaic power generation panel 7 is symmetrically distributed about the vertical center line of the top shell 10. The left and right sides of the square frame 8 are connected to the left and right sides inside the top shell 10, respectively. There is a distance between the square frame 8 and the dustproof net 12. The heating wires 9 are arranged at equal intervals. The lithium battery 4, PLC controller 5, temperature sensor 6, photovoltaic power generation panel 7 and heating wires 9 are electrically connected. With photovoltaic auxiliary heating, it can be used normally in low temperature weather.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, when the temperature sensor 6 senses a temperature below minus 15 degrees Celsius, the heating wire 9 is powered on and heats up, causing the temperature of the air passing through the evaporator 13 to rise. The photovoltaic panel 7 continuously generates electricity under sunlight, and the electricity is stored in the lithium battery 4 to power the heating wire 9, which can play a role in energy saving and emission reduction. The lithium battery 4, PLC controller 5, temperature sensor 6, photovoltaic panel 7, and heating wire 9 are electrically connected. This technology is existing technology and will not be described in detail.

[0027] A distribution pipe 15 is longitudinally fixedly connected to the right side of the bottom inside the top housing 10. A cylindrical shell 14 is horizontally fixedly connected to the front and rear ends of the top of the distribution pipe 15. A gas interface 17 is welded to the bottom right side of the top housing 10. A solenoid valve 16 is installed between the distribution pipe 15 and the gas interface 17. A gas burner 18 is fixedly connected to the right side inside the cylindrical shell 14. An ignition needle 19 is installed on the right side of the bottom of the cylindrical shell 14. Multiple ventilation slots 20 are opened on the outer side of the cylindrical shell 14. The distribution pipe 15 and the gas burner 18 are internally connected. The PLC controller 5 and the solenoid valve 16 are electrically connected. The practicality in winter is further improved by gas auxiliary heating.

[0028] Specifically, such as Figure 2 and Figure 4 As shown, the gas is sprayed from the gas burner 18 through the distribution pipe 15, and the ignition needle 19 emits an electric spark to ignite the gas. The gas burns in the cylindrical shell 14 and heats the cylindrical shell 14, bringing it to a high temperature. The heat is radiated to the evaporator 13, which quickly defrosts and thaws it. The ventilation slot 20 facilitates the flow of oxygen in the cylindrical shell 14. The PLC controller 5, the solenoid valve 16, and the ignition needle 19 are electrically connected. This technology is existing technology and will not be described in detail.

[0029] A long strip fixing plate 21 is horizontally fixed to the top of the top housing 10. A gas sensor 22 is installed at the middle position of the bottom end of the long strip fixing plate 21. The vertical center lines of the fan 11 and the gas sensor 22 coincide. The PLC controller 5, the solenoid valve 16 and the gas sensor 22 are electrically connected to prevent gas leakage.

[0030] Specifically, such as Figure 1 and Figure 2 As shown, when the gas sensor 22 at the bottom of the long strip fixing plate 21 detects that the gas concentration exceeds the standard, the solenoid valve 16 will automatically close and stop the gas supply. The PLC controller 5, the solenoid valve 16, and the gas sensor 22 are electrically connected. This technology is existing technology, so it will not be described in detail.

[0031] Working principle: In use, the refrigerant first circulates in the copper tubes of the evaporator 13, exchanging heat with the outside air. The low-temperature, low-pressure refrigerant is drawn in by the compressor 2 and compressed into a high-temperature, high-pressure gaseous refrigerant, which then enters the heat exchanger 3 to release heat and raise the temperature of the water inside. After that, it returns to the low-temperature, low-pressure refrigerant and flows back into the evaporator 13. The negative pressure created by the fan 11 allows the outside air to pass through the dust filter 12 and blow onto the evaporator 13. When the temperature is low in winter and frost forms on the surface of the evaporator 13, the temperature sensor 6 senses that the temperature is below minus 15 degrees Celsius. Then, the heating wire 9 is connected to the power supply and heats up, raising the temperature of the air passing through the evaporator 13. The photovoltaic power generation panel 7 continuously generates electricity under sunlight, and the electricity is stored in the lithium battery 4 to power the heating wire 9, which can play a role in energy saving and emission reduction. The gas pipeline is connected to the gas interface 17. In winter, when the temperature is low and sunlight is insufficient, and the lithium battery 4 is depleted, the solenoid valve 16 automatically opens. Gas is then sprayed from the gas burner 18 through the distribution pipe 15. The ignition needle 19 emits an electric spark to ignite the gas. The gas burns and heats the cylindrical shell 14, bringing it to a high temperature. The heat radiates to the evaporator 13, causing it to defrost and thaw quickly. The ventilation slot 20 facilitates oxygen circulation within the cylindrical shell 14. When the ignition needle 19 fails and the gas burner 18 does not ignite, the gas sensor 22 at the bottom of the elongated fixing plate 21 detects that the gas concentration exceeds the standard, and the solenoid valve 16 automatically closes to stop the gas supply.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A photovoltaic-assisted heat pump with photothermal synergistic heating function, comprising a bottom housing (1), characterized in that: A compressor (2) is fixedly connected to the right side of the bottom of the bottom shell (1). A heat exchanger (3) is installed at the middle position of the bottom of the bottom of the bottom shell (1). A lithium battery (4) is fixedly connected to the left side of the bottom of the bottom of the bottom shell (1). A PLC controller (5) is installed at the top of the lithium battery (4). A top shell (10) is fixedly connected to the top of the bottom shell (1). A fan (11) is installed at the middle position of the top of the top of the top shell (10). Dustproof nets (12) are fixedly connected to the front and rear ends of the top shell (10). Two sets of evaporators (13) are fixedly connected obliquely at the middle position of the bottom of the top shell (10). A distribution pipe (15) is longitudinally fixedly connected to the right side of the bottom of the top shell (10). A cylindrical shell (14) is horizontally fixedly connected to the front and rear ends of the top of the distribution pipe (15). A gas interface (17) is welded to the bottom of the right side of the top shell (10). A solenoid valve (16) is installed between the distribution pipe (15) and the gas interface (17). A gas burner (18) is fixedly connected to the right side of the inside of the cylindrical shell (14). An ignition needle (19) is installed on the right side of the bottom of the cylindrical shell (14). Multiple ventilation slots (20) are opened on the outer side of the cylindrical shell (14). A photovoltaic auxiliary heating component is installed inside the top shell (10). The auxiliary heating component includes two sets of square frames (8), which are fixedly connected to the front and rear ends of the top shell (10) respectively. Multiple sets of heating wires (9) are fixedly connected between the upper and lower ends of the square frames (8). A temperature sensor (6) is installed at the bottom left side of the top shell (10), and photovoltaic panels (7) are fixedly connected to the top of the left and right sides of the top shell (10) respectively.

2. A photovoltaic-assisted heat pump with photothermal synergistic heating function according to claim 1, characterized in that: The top ends of the photovoltaic power generation panel (7) and the top shell (10) are flush, and the photovoltaic power generation panel (7) is symmetrically distributed about the vertical center line of the top shell (10).

3. A photovoltaic-assisted heat pump with photothermal synergistic heating function according to claim 1, characterized in that: The left and right sides of the square frame (8) are connected to the left and right sides inside the top shell (10) respectively, and there is a distance between the square frame (8) and the dustproof net (12).

4. A photovoltaic-assisted heat pump with photothermal synergistic heating function according to claim 1, characterized in that: The heating wires (9) are arranged at equal intervals, and the lithium battery (4), PLC controller (5), temperature sensor (6), photovoltaic power generation panel (7), and heating wires (9) are electrically connected.

5. A photovoltaic-assisted heat pump with photothermal synergistic heating function according to claim 1, characterized in that: The distribution pipe (15) and the gas burner (18) are internally connected, and the PLC controller (5) and the solenoid valve (16) are electrically connected.

6. A photovoltaic-assisted heat pump with photothermal synergistic heating function according to claim 1, characterized in that: The top of the top housing (10) is horizontally fixed to a long strip fixing plate (21). A gas sensor (22) is installed at the middle position of the bottom end of the long strip fixing plate (21). The vertical center lines of the fan (11) and the gas sensor (22) coincide. The PLC controller (5), the solenoid valve (16), and the gas sensor (22) are electrically connected.

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