Low-temperature compensation solar air source heat pump system

Abstract

The invention relates to the technical field of air source heat pumps, and discloses a low-temperature compensation solar air source heat pump system which comprises an outdoor unit, a compressor component and a driving motor are fixedly assembled at the bottom of the inner wall of the outdoor unit, a heat exchanger is fixedly assembled on the primary outer wall of the outdoor unit, and a radiator is arranged on the other side of the outdoor unit. A control box is fixedly assembled in an inner cavity of the outdoor unit, a solar heat collector is arranged on the side, away from the control box, of the outdoor unit, and a heat exchange water tank is connected to the bottom of the radiator. Liquid in the inner cavity of the solar heat collector is driven by the water pump to circulate with the hose as a path, and the middle of the hose surrounds the end of the fourth transmission pipe, so that a refrigerant in the inner cavity of the fourth transmission pipe can absorb heat of the liquid in the hose, the heat absorption efficiency of the refrigerant is improved, and the problem that when the external environment temperature is low, the refrigerant cannot absorb heat is solved. On one hand, the heat exchange efficiency of the evaporator is reduced, and on the other hand, the evaporator is easy to frost and the compression ratio of the air conditioner compressor is sharply increased.

Description

Technical Field

[0001] The 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 an inexhaustible clean energy source with large quantity, abundant resources and green environmental protection. However, the energy flux density of solar energy is low and varies with time and place, which makes it intermittent and unreliable. The irradiance of solar energy cannot be maintained constant due to various factors such as climatic conditions. For example, if there is continuous rainy weather, the supply of solar energy will be interrupted. In addition, solar energy is a kind of radiation energy, which is instantaneous and difficult to store. It must be converted into other forms of energy in time before it can be used and stored. Therefore, in cold areas, it is generally difficult to meet the requirements of using solar energy alone for heating. 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 cause frequent start and stop and cannot work normally. In the long run, it will damage the overall performance of the compressor. Summary of the invention

[0004] The present invention provides a low temperature compensation solar air source heat pump system, which solves the problems raised by the above background technology.

[0005] The present invention provides the following technical solution: a low-temperature compensated solar air source heat pump system, comprising an external unit, wherein a compressor component and a drive motor are fixedly mounted on the bottom of the inner wall of the external unit, a heat exchanger is fixedly mounted on the outer wall of one side of the external unit, a radiator is arranged on the other side of the external unit, a control box is fixedly mounted in the inner cavity of the external unit, a solar collector is arranged on the side of the external unit away from the control box, a heat exchange water tank is connected to the bottom of the radiator, a connecting pipe fitting is connected between the compressor component and the radiator, and an expansion valve is connected to the middle of the connecting pipe fitting.

[0006] 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 port is opened on the top of the shell, a fan 1 is fixedly installed on the inner wall of the air intake port, a heat dissipation port is opened on the outer wall of the shell close to the solar collector, and the control panel and the fan 1 are both electrically connected to the control box.

[0007] As a preferred technical solution of the present invention: the compressor component includes a base, a compressor body is fixedly assembled on the top of the base, a drive shaft is provided in the inner cavity of the compressor body, 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 a connecting pipe fitting.

[0008] As a preferred technical solution of the present invention: the solar collector includes a bracket, a water tank body is fixedly installed on the top of the bracket, a plurality of heat collecting tubes are fixedly installed on the inner wall of the water tank body, and a connection port 1 and a connection port 2 are fixedly installed on the outer wall of one side of the water tank body, and the connection port 1 and the connection port 2 are connected to the inner cavity of the water tank body.

[0009] As a preferred technical solution of the present invention: the connecting pipe comprises a transmission pipe 3 and a transmission pipe 4, and the expansion valve is arranged in the middle section of the transmission pipe 4; The compressor component is connected to the radiator through the transmission pipe three, and the radiator is connected to the heat exchanger through the transmission pipe four.

[0010] As a preferred technical solution of the present invention: the connection port 1 and the connection port 2 are connected through 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, and the hose is located at one end of the transmission pipe 4 close to the heat exchanger; The inner cavities of the solar collector and the heat exchanger are both provided with temperature sensors.

[0011] 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; 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 three and the connection port four, and the flow grooves of the inner cavities of two adjacent groups of heat sinks are connected through a connecting seat; The connection port three is connected through the second connection pipe and the first connection seat, and the connection port four is connected through the first connection pipe and the second connection seat.

[0012] 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, a transmission pipe 1 is connected to the output end of the liquid pump, a transmission pipe 2 is connected to the top of the storage box, and a third connection seat is fixedly installed on the outer wall of the storage box; The transmission pipe 1 and the transmission pipe 2 are connected to the first connection pipe through the second connection seat, and the heat exchange water tank is arranged at the bottom of the radiator.

[0013] The present invention has the following beneficial effects: 1. The low-temperature compensation solar air source heat pump system drives the liquid in the inner cavity of the solar collector to circulate through a hose as a path through a water pump, and surrounds the end of the transmission pipe four through the middle of the hose, so that the refrigerant located 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 prone to frost and the compression ratio of the air-conditioning compressor increases sharply.

[0014] 2. For 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 the operation of the heat exchange water tank is controlled, and 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

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the external machine of the present invention; Figure 3 It is a schematic diagram of the structure of the solar collector of the present invention; Figure 4 This is a schematic diagram of the installation of the drive motor of the present invention; Figure 5 This is a schematic diagram of the installation of a water exchange tank of the present invention; Figure 6 It is a schematic diagram of the structure of the compressor components of the present invention; Figure 7 This is a schematic diagram of the structure of the first connecting socket of the present invention; Figure 8 It is a schematic diagram of the structure of the connecting seat of the present invention; Fig. 9 This is a schematic diagram of the heat dissipation plate structure of the present invention; Fig.10 It is a schematic diagram of the structure of the water exchange tank of the present invention.

[0016] 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 exchange water tank; 9. connecting pipes; 10. expansion valve; 101. housing; 102. control panel; 103. air inlet; 104. fan 1; 105. heat dissipation outlet; 201, base; 202, compressor body; 203, drive shaft; 601, bracket; 602, water tank body; 603, heat collecting tube; 604, connection port 1; 605, connection port 2; 701, fixed shell; 702, first connecting pipe; 703, second connecting pipe; 704, first connecting seat; 705, second connecting seat; 706, connecting seat; 707, fan 2; 708, heat sink; 709, connecting port 3; 710, connecting port 4; 801, storage box; 802, liquid pump; 803, transmission pipe 1; 804, transmission pipe 2; 805, third connection seat; 901, transmission tube three; 902, transmission tube four. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 - Fig.10 A low-temperature compensation solar air source heat pump system includes an outdoor unit 1, a compressor component 2 and a drive motor 3 are fixedly mounted on the bottom of the inner wall of the outdoor unit 1, a heat exchanger 4 is fixedly mounted on the primary outer wall of the outdoor unit 1, a radiator 7 is arranged on the other side of the outdoor unit 1, a control box 5 is fixedly mounted in the inner cavity of the outdoor unit 1, a solar collector 6 is arranged on the side of the outdoor unit 1 away from the control box 5, a hot water exchange tank 8 is connected to the bottom of the radiator 7, a connecting pipe 9 is connected between the compressor component 2 and the radiator 7, and an expansion valve 10 is connected to the middle of the connecting pipe 9.

[0019] In a preferred embodiment: the external 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 inlet 103 is provided at the top of the shell 101, a fan 104 is fixedly mounted on the inner wall of the air inlet 103, a heat dissipation port 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.

[0020] 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 port 103, so that the heat exchanger 4 can achieve high-speed heat exchange with the outside air. 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.

[0021] 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, 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 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.

[0022] In the above structure, 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 low-temperature and low-pressure refrigerant gas is compressed into high-temperature and high-pressure gas by the compressor component 2, and transmitted 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 is expanded and cooled through the expansion valve 10, and finally absorbs the heat of the low-temperature environment in the heat exchanger 4 to complete a cycle. 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 tubes 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.

[0023] 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 arranged in the middle section of the transmission pipe 4 902; 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.

[0024] In the above structure, the loop connection among the compressor component 2, the heat exchanger 4, the radiator 7, and the expansion valve 10 is realized through the transmission pipe three 901 and the transmission pipe four 902.

[0025] In a preferred embodiment: the connection port 1 604 and the connection port 2 605 are connected by 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; Temperature sensors are provided in the inner cavities of the solar collector 6 and the heat exchanger 4 .

[0026] In the above structure, the liquid in the inner cavity of the solar collector 6 is driven by a water pump to circulate along the hose as a path, and is surrounded by the end of the transmission pipe 902 through the middle of the hose, so that the refrigerant in the inner cavity of the transmission pipe 902 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 prone to frost, and the compression ratio of the air-conditioning compressor increases sharply; By setting temperature sensors in the inner cavities of the solar collector 6 and the heat exchanger 4, the controller can determine whether the liquid temperature of the solar collector 6 can assist the heat exchanger 4 in absorbing heat from the refrigerant when the device is running; Specifically, when the temperature value of the temperature sensor located in the inner cavity of the solar 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 collector 6 to operate, so that the liquid in the inner cavity of the solar 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 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 collector 6 to stop running, so as to prevent the liquid in the hose from absorbing the heat of the refrigerant; This allows the solar collector 6 to automatically assist the heat exchanger 4 in increasing the heat exchange efficiency in response to environmental changes.

[0027] 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 close to the second fan 707, the tops of the third connection port 709 and the fourth connection port 710 at the adjacent ends of the two groups of heat sinks 708 are sleeved with a connecting seat 706, a first connecting seat 704 is fixedly mounted on the top of the fixed shell 701, a second connecting seat 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; The inner cavity of the heat sink 708 is provided with a first flow groove and a second flow groove which are respectively connected with the connection port 3 709 and the connection port 4 710, and the flow grooves of the inner cavities of two adjacent groups of heat sinks 708 are connected through the connecting seat 706; The connection port three 709 is connected to the first connection seat 704 through the second connection pipe 703 , and the connection port four 710 is connected to the second connection seat 705 through the first connection pipe 702 .

[0028] In a preferred embodiment: the heat exchange water tank 8 includes a storage tank 801, a liquid pump 802 is fixedly installed 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 connection seat 805 is fixedly installed 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 connection pipe 702 through the second connection seat 705 , and the water exchange tank 8 is arranged at the bottom of the radiator 7 .

[0029] In the above structure, by arranging the heat exchange tank 8 at the bottom of the radiator 7, when the heat exchange tank 8 is not in operation, the liquid in the inner cavity of the heat 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 transmitted to the second connecting seat 705 through the transmission pipe 1 803, and then the liquid is transmitted 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 transmitted through the first connecting seat 704 is transmitted to the first flow groove in the inner cavity of the heat sink 708 through the second connecting pipe 703, and then the heat of the refrigerant in the first flow groove is transferred to the liquid in the second flow groove, so as to realize the heating of the liquid in the inner cavity of the heat 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 transmitted to the kitchen or bathroom through the external pipeline of the third connecting seat 805 for washing or other purposes; 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, and the second fan 707 is operated to discharge the heat conducted by the refrigerant to the heat sink 708 into the air through the second fan 707; 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, and the operation of the heat exchange water tank 8 is controlled, and 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 flow groove, thereby reducing the output temperature of the radiator 7, thereby avoiding the compressor from starting and stopping frequently and failing to work normally. If things go on like this for a long time, the overall performance of the compressor will be damaged.

[0030] 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 low-temperature and low-pressure refrigerant gas is compressed into high-temperature and high-pressure gas by the compressor component 2, and transmitted 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 is expanded and cooled through the expansion valve 10, and finally absorbs the heat of the low-temperature environment in the heat exchanger 4 to complete a cycle; The liquid in the inner cavity of the solar collector 6 is driven by a water pump to circulate along the hose as a path, and is surrounded by the end of the transmission pipe 902 through the middle of the hose, so that the refrigerant in the inner cavity of the transmission pipe 902 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, the heat exchange efficiency of the evaporator is reduced on the one hand, and the evaporator is prone to frost on the other hand, and the compression ratio of the air-conditioning compressor increases sharply; By setting temperature sensors in the inner cavities of the solar collector 6 and the heat exchanger 4, the controller can determine whether the liquid temperature of the solar collector 6 can assist the heat exchanger 4 in absorbing heat from the refrigerant when the device is running; Specifically, when the temperature value of the temperature sensor located in the inner cavity of the solar 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 collector 6 to operate, so that the liquid in the inner cavity of the solar 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 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 collector 6 to stop running, so as to prevent the liquid in the hose from absorbing the heat of the refrigerant; Then, the solar collector 6 automatically assists the heat exchanger 4 to increase the heat exchange efficiency when the environment changes; 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 conducted by the refrigerant to the heat sink 708 into the air through the second fan 707. 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, and the operation of the heat exchange water tank 8 is controlled, and 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 flow groove, thereby reducing the output temperature of the radiator 7, thereby avoiding the compressor from starting and stopping frequently and failing to work normally. If things go on like this for a long time, the overall performance of the compressor will be damaged.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low temperature compensation solar air source heat pump system, comprising an external unit (1), characterized in that: The bottom of the inner wall of the external machine (1) is respectively fixedly mounted with a compressor component (2) and a drive motor (3); the primary outer wall of the external machine (1) is fixedly mounted with a heat exchanger (4); a radiator (7) is arranged on the other side of the external machine (1); a control box (5) is fixedly mounted in the inner cavity of the external machine (1); a solar collector (6) is arranged on the side of the external machine (1) away from the control box (5); a hot water tank (8) is connected to the bottom of the radiator (7); a connecting pipe (9) is connected between the compressor component (2) and the radiator (7); and an expansion valve (10) is connected to the middle of the connecting pipe (9).

2. The low temperature compensation solar air source heat pump system according to claim 1 is characterized in that: The external unit (1) comprises a housing (101); a control panel (102) is fixedly mounted on an outer wall of the housing (101) close to a control box (5); an air inlet (103) is provided at the top of the housing (101); a fan (104) is fixedly mounted on an inner wall of the air inlet (103); a heat dissipation port (105) is 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) are 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) comprises 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) via a belt, the liquid input end of the compressor body (202) is connected to the input end of the heat exchanger (4) via a pipe body, and the liquid output end of the compressor body (202) is connected to a connecting pipe (9).

4. The low temperature compensation solar air source heat pump system according to claim 1, characterized in that: The solar thermal collector (6) comprises a bracket (601), a water tank body (602) is fixedly mounted on the top of the bracket (601), a plurality of heat collecting tubes (603) are fixedly mounted on the inner wall of the water tank body (602), 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).

5. The low temperature compensation solar air source heat pump system according to claim 4, characterized in that: The connecting pipe (9) comprises 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 a transmission pipe three (901), and the radiator (7) is connected to the heat exchanger (4) via a transmission pipe four (902).

6. The low temperature compensation solar air source heat pump system according to claim 5, characterized in that: 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 thermal collector (6) and the heat exchanger (4) are both provided with temperature sensors.

7. The low temperature compensation solar air source heat pump system according to claim 1, characterized in that: The radiator (7) comprises a fixed shell (701), the inner wall of the fixed shell (701) is fixedly equipped with a heat sink (708), the outer wall of the heat sink (708) is fixedly equipped with a second fan (707), both ends of the heat sink (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 the adjacent ends of the two groups of heat sinks (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 sink (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 in the inner cavities of two adjacent groups of heat sinks (708) are connected via a 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).

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

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