A low temperature compensation solar air source heat pump system

Abstract

The present invention relates to the technical field of air source heat pumps, and discloses a low-temperature compensation solar air source heat pump system, comprising an outdoor unit, wherein the bottom of the inner wall of the outdoor unit is respectively fixedly equipped with a compressor component and a drive motor, a primary outer wall of the outdoor unit is fixedly equipped with a heat exchanger, a radiator is provided on the other side of the outdoor unit, a control box is fixedly provided in the inner cavity of the outdoor unit, a solar collector is provided on the side of the outdoor unit away from the control box, and a heat exchange water tank is connected to the bottom of the radiator. The liquid in the inner cavity of the solar collector is driven by a water pump to circulate along a hose as a path, and is surrounded by the end of a transmission pipe four through the middle of the hose, so that the refrigerant in the inner cavity of the transmission pipe four can absorb the heat of the liquid in the hose, thereby improving the heat absorption efficiency of the refrigerant, thereby solving the problem that when the external ambient temperature is low, on the one hand, the heat exchange efficiency of the evaporator is reduced, and on the other hand, the evaporator is easily frosted, and the compression ratio of the air-conditioning compressor increases sharply.

Description

Technical Field

[0001] The present invention relates to the technical field of air source heat pumps, in particular to a low temperature compensation solar air source heat pump system. Background Art

[0002] Air source heat pump technology has the advantages of high efficiency, energy saving and environmental protection, and is used in public buildings, commercial clubs and villas.

[0003] Solar energy is a clean, inexhaustible energy source, abundant and resourceful, and environmentally friendly. However, its energy flux density is low and varies with time and location, making it intermittent and unreliable. Solar irradiance is affected by various factors, including climatic conditions, and cannot be maintained at a constant level. For example, continuous rainy weather can disrupt solar energy supply. Furthermore, solar energy is a form of radiant energy, which is instantaneous and difficult to store. It must be immediately converted into other forms of energy before it can be utilized and stored. Therefore, using solar energy alone for heating in cold regions is generally difficult to meet heating requirements.

[0004] The main limitation of air source heat pump technology at present is that when the external ambient temperature is low, on the one hand, the heat exchange efficiency of the evaporator is reduced, and on the other hand, the evaporator is prone to frost, and the compression ratio of the air-conditioning compressor increases sharply. On the other hand, when the output temperature of the equipment is adjusted to be consistent with the ambient temperature, or the difference is small, the equipment does not need to run at full load. In this state, the compressor will start and stop frequently and cannot work normally. In the long run, the overall performance of the compressor will be damaged. Summary of the Invention

[0005] The present invention provides a low-temperature compensation solar air source heat pump system, which solves the problems raised by the above background technology.

[0006] The present invention provides the following technical solution: a low-temperature compensated solar air source heat pump system, comprising an outdoor unit, wherein the bottom of the inner wall of the outdoor unit is respectively fixedly equipped with a compressor component and a drive motor, a heat exchanger is fixedly equipped on the outer wall of one side of the outdoor unit, a radiator is provided on the other side of the outdoor unit, a control box is fixedly equipped in the inner cavity of the outdoor unit, a solar collector is provided on the side of the outdoor unit away from the control box, a hot water exchange tank is connected to the bottom of the radiator, a connecting pipe is connected between the compressor component and the radiator, and an expansion valve is connected to the middle of the connecting pipe.

[0007] As a preferred technical solution of the present invention: the external unit includes a shell, a control panel is fixedly installed on the outer wall of the shell close to the control box, an air intake is opened on the top of the shell, a fan 1 is fixedly installed on the inner wall of the air intake, a heat dissipation port is opened on the outer wall of the shell close to the solar collector, and the control panel and fan 1 are both electrically connected to the control box.

[0008] As a preferred technical solution of the present invention: the compressor component includes a base, the top of the base is fixedly equipped with a compressor body, the inner cavity of the compressor body is provided with a drive shaft, the heat exchanger is arranged on the side of the compressor body away from the drive shaft, the drive shaft is driven and connected to the output end of the drive motor through a belt, the liquid input end of the compressor body is connected to the input end of the heat exchanger through a pipe body, and the liquid output end of the compressor body is connected to the connecting pipe.

[0009] As a preferred technical solution of the present invention: the solar collector includes a bracket, the top of the bracket is fixedly equipped with a water tank body, the inner wall of the water tank body is fixedly equipped with a plurality of heat collecting pipes, and the outer wall of one side of the water tank body is respectively fixedly equipped with connection port 1 and connection port 2, and connection port 1 and connection port 2 are connected to the inner cavity of the water tank body.

[0010] As a preferred technical solution of the present invention: the connecting pipe includes a transmission pipe 3 and a transmission pipe 4, and the expansion valve is arranged in the middle section of the transmission pipe 4;

[0011] The compressor component is connected to the radiator through a transmission pipe three, and the radiator is connected to the heat exchanger through a transmission pipe four.

[0012] As a preferred technical solution of the present invention: the first connection port and the second connection port are connected by a hose, and the hose also includes a water pump for driving liquid transmission. The middle portion of the hose surrounds the end of the transmission pipe 4, and the hose is located at the end of the transmission pipe 4 close to the heat exchanger;

[0013] The inner cavities of the solar thermal collector and the heat exchanger are both provided with temperature sensors.

[0014] As a preferred technical solution of the present invention: the radiator includes a fixed shell, the inner wall of the fixed shell is fixedly equipped with a heat sink, the outer wall of the heat sink is fixedly equipped with a second fan, both ends of the heat sink close to the second fan are fixedly equipped with a third connection port and a fourth connection port, the tops of the third connection port and the fourth connection port at adjacent ends of the two groups of heat sinks are sleeved with a connecting seat, the top of the fixed shell is fixedly equipped with a first connecting seat, the bottom of the fixed shell is fixedly equipped with a second connecting seat, and the inner walls on both sides of the fixed shell are respectively fixedly equipped with a first connecting pipe and a second connecting pipe;

[0015] The inner cavity of the heat sink is provided with a first flow groove and a second flow groove which are respectively connected with the connection port 3 and the connection port 4, and the flow grooves of the inner cavities of two adjacent heat sink plates are connected through the connecting seat;

[0016] The third connection port is connected to the first connection seat via the second connection pipe, and the fourth connection port is connected to the second connection seat via the first connection pipe.

[0017] As a preferred technical solution of the present invention: the heat exchange water tank includes a storage box, a liquid pump is fixedly installed on the top of the storage box, the output end of the liquid pump is connected to the first transmission pipe, the top of the storage box is connected to the second transmission pipe, and the outer wall of the storage box is fixedly installed with a third connecting seat;

[0018] The transmission pipe 1 and the transmission pipe 2 are connected to the first connecting pipe through the second connecting seat, and the heat exchange water tank is arranged at the bottom of the radiator.

[0019] The present invention has the following beneficial effects:

[0020] 1. This low-temperature compensation solar air source heat pump system uses a water pump to drive the liquid in the inner cavity of the solar collector to circulate through a hose. The liquid circulates through the middle of the hose and surrounds the end of the transmission pipe 4, so that the refrigerant in the inner cavity of the transmission pipe 4 can absorb the heat of the liquid in the hose, thereby improving the heat absorption efficiency of the refrigerant. This solves the problem that when the external ambient temperature is low, the heat exchange efficiency of the evaporator is reduced on the one hand, and the evaporator is prone to frost, and the compression ratio of the air-conditioning compressor increases sharply on the other hand.

[0021] 2. In the low-temperature compensation solar air source heat pump system, when the personnel adjust the output temperature of the equipment to be consistent with the ambient temperature, or the ambient temperature difference is small, the compressor components operate normally, and by controlling the operation of the heat exchange water tank, the liquid in the inner cavity of the heat exchange water tank flows to the inner cavity of the heat sink, so that the liquid in the inner cavity of the heat exchange water tank absorbs the heat of the refrigerant in the first flow groove, thereby reducing the output temperature of the radiator, thereby avoiding the frequent start and stop of the compressor and the inability to work normally. In the long run, it will damage the overall performance of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the external unit of the present invention;

[0024] Figure 3 This is a schematic structural diagram of a solar thermal collector according to the present invention;

[0025] Figure 4 This is a schematic diagram of the installation of the drive motor of the present invention;

[0026] Figure 5 This is a schematic diagram of the installation of a water exchange tank of the present invention;

[0027] Figure 6 This is a schematic structural diagram of the compressor components of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the first connecting base of the present invention;

[0029] Figure 8 This is a schematic diagram of the connecting seat structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the heat dissipation plate structure of the present invention;

[0031] Figure 10 This is a schematic structural diagram of the water exchange tank of the present invention.

[0032] In the figure: 1. External unit; 2. Compressor components; 3. Drive motor; 4. Heat exchanger; 5. Control box; 6. Solar collector; 7. Radiator; 8. Heat exchanger tank; 9. Connecting pipes; 10. Expansion valve.

[0033] 101. Casing; 102. Control panel; 103. Air intake; 104. Fan 1; 105. Heat dissipation vent;

[0034] 201. Base; 202. Compressor body; 203. Drive shaft;

[0035] 601, bracket; 602, water tank body; 603, heat collecting tube; 604, connection port 1; 605, connection port 2;

[0036] 701, fixed housing; 702, first connecting pipe; 703, second connecting pipe; 704, first connecting seat; 705, second connecting seat; 706, connecting seat; 707, second fan; 708, heat sink; 709, third connecting port; 710, fourth connecting port;

[0037] 801, storage box; 802, liquid pump; 803, transmission pipe 1; 804, transmission pipe 2; 805, third connecting socket;

[0038] 901, transmission tube three; 902, transmission tube four. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] See also Figure 1 - Figure 10A low-temperature compensation solar air source heat pump system includes an outdoor unit 1. The bottom of the inner wall of the outdoor unit 1 is fixedly equipped with a compressor component 2 and a drive motor 3. The primary outer wall of the outdoor unit 1 is fixedly equipped with a heat exchanger 4. A radiator 7 is provided on the other side of the outdoor unit 1. A control box 5 is fixedly installed in the inner cavity of the outdoor unit 1. A solar collector 6 is provided on the side of the outdoor unit 1 away from the control box 5. The bottom of the radiator 7 is connected to a hot water exchange tank 8. A connecting pipe 9 is connected between the compressor component 2 and the radiator 7. The middle part of the connecting pipe 9 is connected to an expansion valve 10.

[0041] In a preferred embodiment: the outdoor unit 1 includes a shell 101, a control panel 102 is fixedly mounted on the outer wall of the shell 101 close to the control box 5, an air intake 103 is provided at the top of the shell 101, a fan 104 is fixedly mounted on the inner wall of the air intake 103, a heat dissipation vent 105 is provided on the outer wall of the shell 101 close to the solar collector 6, and both the control panel 102 and the fan 104 are electrically connected to the control box 5.

[0042] In the above structure, by operating the fan 104, the outside air is transmitted to the inner cavity of the shell 101 through the air intake 103, thereby enabling the heat exchanger 4 to achieve high-speed heat exchange with the outside air, and by opening the heat dissipation port 105, the heat generated by the operation of the compressor component 2 and the drive motor 3 can be discharged through the heat dissipation port 105.

[0043] In a preferred embodiment: the compressor component 2 includes a base 201, a compressor body 202 is fixedly assembled on the top of the base 201, a drive shaft 203 is provided in the inner cavity of the compressor body 202, and the heat exchanger 4 is arranged on the side of the compressor body 202 away from the drive shaft 203. The drive shaft 203 is driven and connected to the output end of the drive motor 3 through a belt. The liquid input end of the compressor body 202 is connected to the input end of the heat exchanger 4 through a pipe body, and the liquid output end of the compressor body 202 is connected to the connecting pipe 9.

[0044] In the above structure, the drive shaft 203 is connected to the output end of the drive motor 3 via a belt, so that the drive motor 3 drives the compressor component 2 through the belt to realize operation. The compressor component 2 compresses the low-temperature, low-pressure refrigerant gas into high-temperature, high-pressure gas, and transmits it to the radiator 7 through the connecting pipe 9, so that the radiator 7 releases the heat of the refrigerant. At the same time, the radiator 7 is connected to the heat exchanger 4 through the connecting pipe 9 and the expansion valve 10. The refrigerant is then expanded and cooled by the expansion valve 10, and finally absorbs heat from the low-temperature environment in the heat exchanger 4, completing a cycle.

[0045] In a preferred embodiment: the solar collector 6 includes a bracket 601, a water tank body 602 is fixedly installed on the top of the bracket 601, a plurality of heat collecting pipes 603 are fixedly installed on the inner wall of the water tank body 602, and a connection port 1 604 and a connection port 2 605 are fixedly installed on the outer wall of one side of the water tank body 602, and the connection port 1 604 and the connection port 2 605 are connected to the inner cavity of the water tank body 602.

[0046] In a preferred embodiment: the connecting pipe 9 includes a transmission pipe 3 901 and a transmission pipe 4 902 , and the expansion valve 10 is provided in the middle section of the transmission pipe 4 902 ;

[0047] The compressor component 2 is connected to the radiator 7 through the transmission pipe 3 901, and the radiator 7 is connected to the heat exchanger 4 through the transmission pipe 4 902.

[0048] In the above structure, the loop connection between the compressor component 2, the heat exchanger 4, the radiator 7, and the expansion valve 10 is realized through the transmission pipe 3 901 and the transmission pipe 4 902.

[0049] In a preferred embodiment, the first connection port 604 and the second connection port 605 are connected by a hose, and the hose also includes a water pump for driving liquid transmission. The middle portion of the hose surrounds the end of the fourth transmission pipe 902, and the hose is located at the end of the fourth transmission pipe 902 near the heat exchanger 4.

[0050] Temperature sensors are provided in the inner cavities of the solar collector 6 and the heat exchanger 4 .

[0051] In the above structure, the liquid in the inner cavity of the solar thermal collector 6 is driven by a water pump to circulate through the hose. The liquid is then passed through the middle of the hose and surrounds the end of the transmission tube 902. This allows the refrigerant in the inner cavity of the transmission tube 902 to absorb heat from the liquid in the hose, thereby improving the heat absorption efficiency of the refrigerant. This solves the problem that when the external ambient temperature is low, the heat exchange efficiency of the evaporator is reduced, and the evaporator is easily frosted, which causes the compression ratio of the air conditioner compressor to increase sharply.

[0052] By setting temperature sensors in the inner cavity of the solar collector 6 and the heat exchanger 4, the device can be operated and the controller can be used to determine whether the liquid temperature of the solar collector 6 can assist the heat exchanger 4 in absorbing heat from the refrigerant.

[0053] Specifically, when the temperature value of the temperature sensor located in the inner cavity of the solar thermal collector 6 is greater than the temperature value of the temperature sensor located in the inner cavity of the heat exchanger 4, the controller controls the water pump in the inner cavity of the solar thermal collector 6 to operate, so that the liquid in the inner cavity of the solar thermal collector 6 circulates through the hose, and the refrigerant absorbs the heat of the liquid in the hose through the heat conduction effect;

[0054] When the temperature value of the temperature sensor located in the inner cavity of the solar thermal collector 6 is less than or equal to the temperature value of the temperature sensor located in the inner cavity of the heat exchanger 4, the controller controls the water pump in the inner cavity of the solar thermal collector 6 to stop running to prevent the liquid in the hose from absorbing the heat of the refrigerant;

[0055] This allows the solar collector 6 to automatically assist the heat exchanger 4 in increasing the heat exchange efficiency as the environment changes.

[0056] In a preferred embodiment, the radiator 7 includes a fixed shell 701, a heat sink 708 is fixedly mounted on the inner wall of the fixed shell 701, a second fan 707 is fixedly mounted on the outer wall of the heat sink 708, a third connection port 709 and a fourth connection port 710 are fixedly mounted on both ends of the heat sink 708 near the second fan 707, a connecting port 706 is sleeved on the tops of the third connection port 709 and the fourth connection port 710 at adjacent ends of the two sets of heat sinks 708, a first connecting port 704 is fixedly mounted on the top of the fixed shell 701, a second connecting port 705 is fixedly mounted on the bottom of the fixed shell 701, and a first connecting pipe 702 and a second connecting pipe 703 are fixedly mounted on the inner walls of both sides of the fixed shell 701 respectively.

[0057] The inner cavity of the heat sink 708 is provided with a first flow groove and a second flow groove which are connected to the third connection port 709 and the fourth connection port 710 respectively, and the flow grooves of the inner cavities of two adjacent heat sinks 708 are connected through the connecting seat 706;

[0058] The third connection port 709 is connected to the first connection seat 704 through the second connection pipe 703 , and the fourth connection port 710 is connected to the second connection seat 705 through the first connection pipe 702 .

[0059] In a preferred embodiment, the heat exchange water tank 8 includes a storage tank 801, a liquid pump 802 is fixedly mounted on the top of the storage tank 801, a transmission pipe 1 803 is connected to the output end of the liquid pump 802, a transmission pipe 2 804 is connected to the top of the storage tank 801, and a third connecting seat 805 is fixedly mounted on the outer wall of the storage tank 801;

[0060] The transmission pipe 1 803 and the transmission pipe 2 804 are connected to the first connecting pipe 702 through the second connecting seat 705 , and the heat exchange water tank 8 is arranged at the bottom of the radiator 7 .

[0061] In the above structure, by arranging the hot water exchange tank 8 at the bottom of the radiator 7, when the hot water exchange tank 8 is not in operation, the liquid in the inner cavity of the hot water exchange tank 8 will not flow into the inner cavity of the radiator 7, and by arranging the liquid pump 802, when the liquid pump 802 is in operation, the liquid in the inner cavity of the storage tank 801 can be transferred to the second connecting seat 705 through the transfer pipe 1 803, and then transferred to the second flow groove in the inner cavity of the heat sink 708 through the second connecting seat 705 and the first connecting pipe 702, and the refrigerant transferred through the first connecting seat 704 is transferred to the first flow groove in the inner cavity of the heat sink 708 through the second connecting pipe 703, so that the heat of the refrigerant in the first flow groove is transferred to the liquid in the second flow groove, thereby achieving heating of the liquid in the inner cavity of the hot water exchange tank 8, and by providing the third connecting seat 805, the liquid heated in the inner cavity of the storage tank 801 can be transferred to the kitchen or bathroom through the external pipeline of the third connecting seat 805 for washing or other purposes;

[0062] Specifically, the connecting pipe 9 transfers the refrigerant in the inner cavity of the compressor component 2 to the inner cavity of the radiator 7, and allows the refrigerant to circulate in the first flow groove in the inner cavity of the heat sink 708. The second fan 707 is operated to discharge the heat transferred from the refrigerant to the heat sink 708 into the air through the second fan 707.

[0063] When the personnel adjust the output temperature of the equipment to be consistent with the ambient temperature, or the ambient temperature difference is small, the compressor component 2 operates normally. By controlling the operation of the heat exchange water tank 8, the liquid in the inner cavity of the heat exchange water tank 8 flows to the inner cavity of the heat sink 708, so that the liquid in the inner cavity of the heat exchange water tank 8 absorbs the heat of the refrigerant in the first circulation groove, thereby reducing the output temperature of the radiator 7, thereby avoiding the frequent start and stop of the compressor and the inability to work normally. In the long run, it will damage the overall performance of the compressor.

[0064] Working principle: the drive shaft 203 is connected to the output end of the drive motor 3 through a belt, so that the drive motor 3 drives the compressor component 2 through the belt to realize operation, and the compressor component 2 compresses the low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure gas, and transmits it to the radiator 7 through the connecting pipe 9, so that the radiator 7 releases the heat of the refrigerant. At the same time, the radiator 7 is connected to the heat exchanger 4 through the connecting pipe 9 and the expansion valve 10, and then the refrigerant expands and cools down through the expansion valve 10, and finally absorbs the heat of the low-temperature environment in the heat exchanger 4, completing a cycle;

[0065] The liquid in the inner cavity of the solar thermal collector 6 is driven by a water pump to circulate through the hose. The liquid is then passed through the middle of the hose and surrounds the end of the transmission tube 902. This allows the refrigerant in the inner cavity of the transmission tube 902 to absorb the heat of the liquid in the hose, thereby improving the heat absorption efficiency of the refrigerant. This solves the problem that when the external ambient temperature is low, the heat exchange efficiency of the evaporator is reduced, and the evaporator is easily frosted, which causes the compression ratio of the air conditioner compressor to increase sharply.

[0066] By setting temperature sensors in the inner cavity of the solar collector 6 and the heat exchanger 4, the device can be operated and the controller can be used to determine whether the liquid temperature of the solar collector 6 can assist the heat exchanger 4 in absorbing heat from the refrigerant.

[0067] Specifically, when the temperature value of the temperature sensor located in the inner cavity of the solar thermal collector 6 is greater than the temperature value of the temperature sensor located in the inner cavity of the heat exchanger 4, the controller controls the water pump in the inner cavity of the solar thermal collector 6 to operate, so that the liquid in the inner cavity of the solar thermal collector 6 circulates through the hose, and the refrigerant absorbs the heat of the liquid in the hose through the heat conduction effect;

[0068] When the temperature value of the temperature sensor located in the inner cavity of the solar thermal collector 6 is less than or equal to the temperature value of the temperature sensor located in the inner cavity of the heat exchanger 4, the controller controls the water pump in the inner cavity of the solar thermal collector 6 to stop running to prevent the liquid in the hose from absorbing the heat of the refrigerant;

[0069] Then, the solar collector 6 automatically assists the heat exchanger 4 to increase the heat exchange efficiency when the environment changes;

[0070] The connecting pipe 9 transfers the refrigerant in the inner cavity of the compressor component 2 to the inner cavity of the radiator 7, and allows the refrigerant to circulate in the first flow groove in the inner cavity of the heat sink 708. The second fan 707 is operated to discharge the heat transferred from the refrigerant to the heat sink 708 into the air through the second fan 707.

[0071] When the personnel adjust the output temperature of the equipment to be consistent with the ambient temperature, or the ambient temperature difference is small, the compressor component 2 operates normally. By controlling the operation of the heat exchange water tank 8, the liquid in the inner cavity of the heat exchange water tank 8 flows to the inner cavity of the heat sink 708, so that the liquid in the inner cavity of the heat exchange water tank 8 absorbs the heat of the refrigerant in the first circulation groove, thereby reducing the output temperature of the radiator 7, thereby avoiding the frequent start and stop of the compressor and the inability to work normally. In the long run, it will damage the overall performance of the compressor.

[0072] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0073] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A low temperature compensation solar air source heat pump system, comprising an outdoor unit (1), characterized in that: The bottom of the inner wall of the external unit (1) is respectively fixedly mounted with a compressor component (2) and a drive motor (3), the primary outer wall of the external unit (1) is fixedly mounted with a heat exchanger (4), the other side of the external unit (1) is provided with a radiator (7), the inner cavity of the external unit (1) is fixedly mounted with a control box (5), the side of the external unit (1) away from the control box (5) is provided with a solar collector (6), the bottom of the radiator (7) is connected to a heat exchange water tank (8), a connecting pipe (9) is connected between the compressor component (2) and the radiator (7), and the middle of the connecting pipe (9) is connected to an expansion valve (10); The solar thermal collector (6) includes a bracket (601), a water tank body (602) is fixedly mounted on the top of the bracket (601), a plurality of heat collecting pipes (603) are fixedly mounted on the inner wall of the water tank body (602), and a connection port 1 (604) and a connection port 2 (605) are fixedly mounted on the outer wall of one side of the water tank body (602), and the connection port 1 (604) and the connection port 2 (605) are connected to the inner cavity of the water tank body (602); The connecting pipe (9) includes a transmission pipe three (901) and a transmission pipe four (902), and the expansion valve (10) is arranged in the middle section of the transmission pipe four (902); The compressor component (2) is connected to the radiator (7) via the transmission pipe three (901), and the radiator (7) is connected to the heat exchanger (4) via the transmission pipe four (902); The connection port 1 (604) and the connection port 2 (605) are connected via a hose, and the hose also includes a water pump for driving liquid transmission. The middle part of the hose surrounds the end of the transmission pipe 4 (902), and the hose is located at one end of the transmission pipe 4 (902) close to the heat exchanger (4); The inner cavities of the solar collector (6) and the heat exchanger (4) are both provided with temperature sensors; When the temperature value of the temperature sensor located in the inner cavity of the solar thermal collector (6) is greater than the temperature value of the temperature sensor located in the inner cavity of the heat exchanger (4), the controller controls the water pump in the inner cavity of the solar thermal collector (6) to operate, so that the liquid in the inner cavity of the solar thermal collector (6) circulates through the hose, and the refrigerant absorbs the heat of the liquid in the hose through the heat conduction effect; When the temperature value of the temperature sensor located in the inner cavity of the solar thermal collector (6) is less than or equal to the temperature value of the temperature sensor located in the inner cavity of the heat exchanger (4), the controller controls the water pump in the inner cavity of the solar thermal collector (6) to stop running, so as to prevent the liquid in the hose from absorbing the heat of the refrigerant.

2. The low-temperature compensation solar air source heat pump system according to claim 1, characterized in that: The external unit (1) comprises a housing (101), a control panel (102) being fixedly mounted on an outer wall of the housing (101) close to a control box (5), an air intake (103) being provided at the top of the housing (101), a fan (104) being fixedly mounted on an inner wall of the air intake (103), a heat dissipation port (105) being provided on an outer wall of a side of the housing (101) close to a solar collector (6), and both the control panel (102) and the fan (104) being electrically connected to the control box (5).

3. The low-temperature compensation solar air source heat pump system according to claim 1, characterized in that: The compressor component (2) includes a base (201), a compressor body (202) is fixedly mounted on the top of the base (201), a drive shaft (203) is provided in the inner cavity of the compressor body (202), the heat exchanger (4) is provided on a side of the compressor body (202) away from the drive shaft (203), the drive shaft (203) is connected to the output end of the drive motor (3) through a belt, the liquid input end of the compressor body (202) is connected to the input end of the heat exchanger (4) through a pipe body, and the liquid output end of the compressor body (202) is connected to the connecting pipe (9).

4. The low-temperature compensation solar air source heat pump system according to claim 1, characterized in that: The radiator (7) includes a fixed shell (701), the inner wall of the fixed shell (701) is fixedly equipped with a heat dissipation plate (708), the outer wall of the heat dissipation plate (708) is fixedly equipped with a second fan (707), both ends of the heat dissipation plate (708) close to the second fan (707) are fixedly equipped with a third connection port (709) and a fourth connection port (710), the tops of the third connection port (709) and the fourth connection port (710) at adjacent ends of the two groups of heat dissipation plates (708) are sleeved with a connecting seat (706), the top of the fixed shell (701) is fixedly equipped with a first connecting seat (704), the bottom of the fixed shell (701) is fixedly equipped with a second connecting seat (705), and the inner walls on both sides of the fixed shell (701) are respectively fixedly equipped with a first connecting pipe (702) and a second connecting pipe (703); The inner cavity of the heat dissipation plate (708) is provided with a first flow groove and a second flow groove respectively connected to the third connection port (709) and the fourth connection port (710), and the flow grooves of the inner cavities of two adjacent groups of heat dissipation plates (708) are connected through the connecting seat (706); The third connection port (709) is connected to the first connection seat (704) via the second connection pipe (703), and the fourth connection port (710) is connected to the second connection seat (705) via the first connection pipe (702).

5. The low temperature compensation solar air source heat pump system according to claim 4, characterized in that: The water exchange tank (8) comprises a storage tank (801), a liquid pump (802) is fixedly mounted on the top of the storage tank (801), an output end of the liquid pump (802) is connected to a transmission pipe 1 (803), a transmission pipe 2 (804) is connected to the top of the storage tank (801), and a third connecting seat (805) is fixedly mounted on the outer wall of the storage tank (801); The transmission pipe 1 (803) and the transmission pipe 2 (804) are connected to the first connecting pipe (702) via the second connecting seat (705), and the heat exchange water tank (8) is arranged at the bottom of the radiator (7).

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