A cycle air energy heat pump

Abstract

The application discloses a circulating air energy heat pump, and relates to the technical field of heat pumps, which comprises a heat pump main body, an evaporator on the heat pump main body, a heating mechanism connected to the base, and a shielding mechanism connected to the top of the heat pump main body. The circulating air energy heat pump provided by the application can converge sunlight on the evaporator by the light-converging plate when the sun is out in winter, thereby melting the frost on the evaporator and providing heat energy, improving the efficiency of the evaporator. When snow accumulates on the top of the shielding plate, the shielding plate will be turned downward under the weight of the snow, thereby pushing the pressing rod to move towards the inside of the fixed cylinder, compressing the spring, and making air enter the inside of the water storage tank, thereby pushing the anti-freezing liquid in the water storage tank out of the water suction pipe, making the anti-freezing liquid enter the inside of the drainage groove, and making the anti-freezing liquid flow out of the surface of the shielding plate after being absorbed by the sponge strip, thereby accelerating the melting of the snow on the surface of the shielding plate, and ensuring the normal work of the heat pump main body.

Description

Technical Field

[0001] This invention relates to an air source heat pump, and more particularly to a circulating air source heat pump. Background Technology

[0002] Heat pump technology is a new energy technology that has received much attention worldwide in recent years. A pump, as people are familiar with it, is a mechanical device that can increase potential energy; for example, a water pump mainly draws water from a low level to a high level. A heat pump, however, is a device that extracts low-grade heat energy from the air, water, or soil in nature, uses electrical energy to perform work, and provides usable high-grade heat energy. An air-source heat pump operates through a compressor system, absorbing heat from the air to produce hot water. Specifically, the compressor compresses the refrigerant; the refrigerant, now at a higher temperature, passes through a condenser in a water tank to produce hot water. After heat exchange, the refrigerant returns to the compressor for the next cycle. During this process, heat from the air is absorbed by the evaporator and transferred into the refrigerant, which is then transferred into the water to produce hot water.

[0003] When existing heat pumps are used in winter, the evaporator absorbs heat, which easily leads to frost formation on the evaporator fins. The gaps between the evaporator fins are small, making manual cleaning inconvenient. When the heat pump automatically defrosts, it requires a certain amount of preheating, and snow easily accumulates on the top of the heat pump. When there is a lot of snow, it can reduce the heat in the surrounding environment, requiring timely cleaning. Manual cleaning is quite troublesome, especially after snow or rain, when snow tends to harden on the evaporator at the top of the heat pump, making it difficult to clean. Summary of the Invention

[0004] The purpose of this invention is to provide a circulating air source heat pump to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a circulating air source heat pump, comprising a heat pump body and an evaporator on the heat pump body, a base plate fixedly connected to the bottom end of the heat pump body, a base mounted on the bottom end of the base plate, a heating mechanism connected to the base, the heating mechanism including a sliding frame, the sliding frame slidably connected to the base, a fixed frame rotatably connected to the sliding frame, a focusing plate mounted on the fixed frame, the focal point of the focusing plate being located on the evaporator, a shielding mechanism connected to the top of the heat pump body, the shielding mechanism including a fixed plate, a fixed plate fixedly connected to the top end of the heat pump body, a shielding plate rotatably connected to the top end of the fixed plate, the top end of the shielding plate being inclined, a drainage groove provided at the top end of the inclined surface of the shielding plate, a water storage tank for storing antifreeze provided inside the shielding plate, and a water suction pipe installed on the shielding plate. The drainage channel and the water storage tank are connected by a suction pipe that extends to the bottom of the water storage tank. An air-inflating assembly for resetting and inflating the water storage tank is installed on the fixed plate. A sealing plug for sealing the water storage tank is screwed onto the fixed plate. The air-inflating assembly includes a fixed cylinder. The fixed cylinder is fixedly connected to the top of the fixed plate. A pressure rod is slidably connected to the fixed cylinder. A piston is fixedly connected to the bottom of the pressure rod. A spring abuts against the piston and the fixed cylinder. An air passage is provided on the pressure rod. A first one-way valve is installed at one end of the pressure rod in the air passage. External air flows into the fixed cylinder through the first one-way valve and the air passage. A connecting pipe is installed on the fixed cylinder. One end of the connecting pipe is connected to the water storage tank. A second one-way valve is installed on the fixed cylinder at the connecting pipe. Air inside the fixed cylinder flows into the water storage tank through the second one-way valve and the connecting pipe.

[0006] As a preferred embodiment of the present invention, photoresistors are installed at both the top and bottom of the evaporator, a first electric push rod is rotatably connected to the sliding frame, the telescopic end of the first electric push rod is rotatably connected to the back of the fixed frame, and the photoresistors, the first electric push rod and the heat pump body are electrically connected.

[0007] The above technical solution facilitates the detection of whether the light reflected by the concentrator falls on the evaporator by a photoresistor, and facilitates the control of the concentrator rotation by the first electric push rod so that the reflected light falls on the evaporator.

[0008] As a preferred embodiment of the present invention, a second electric push rod is installed on the sliding frame, the telescopic end of the second electric push rod is fixedly connected to the base, the second electric push rod is used to push the sliding frame to slide, and the second electric push rod is electrically connected to the heat pump body.

[0009] With the above technical solution, a pair of second electric push rods can be set, located at both ends of the sliding frame, so that the extension of the sliding frame is more stable. The extension of the second electric push rods can be controlled by the controller on the heat pump body.

[0010] As a preferred embodiment of the present invention, the fixing frame is arc-shaped, the light-concentrating plate is made of metal, and the light-concentrating plate is arc-shaped.

[0011] Through the above technical solutions, the metal light-concentrating plate can absorb heat while increasing its wear resistance.

[0012] With the above technical solution, when snow accumulates, the pressure rod pushes the piston to move, and the spring will compress, thereby forcing the air inside the fixed cylinder into the connecting pipe through the second one-way valve. The air enters the water storage tank, thereby forcing the antifreeze inside the water storage tank out from the water suction pipe, which facilitates air pumping inside the water storage tank, thus squeezing out the coolant and playing a role in melting the snow. After the snow melts or slides off, the spring pushes the pressure rod to reset, and external air will enter the fixed cylinder through the air passage and the first one-way valve, thereby resetting the pressure rod and the shielding plate, which facilitates melting when snow accumulates again, thus ensuring the normal operation of the heat pump body.

[0013] As a preferred embodiment of the present invention, a sponge strip is installed inside the drainage channel of the shielding plate, and the sponge strip blocks the drainage channel.

[0014] The above technical solution avoids coolant flowing directly out of the water suction pipe, and the sponge strip allows the coolant to flow evenly onto the surface of the shielding plate.

[0015] As a preferred embodiment of the present invention, a pair of side plates are fixedly connected to the shielding plate, and the pair of side plates are distributed at both ends of the drainage channel.

[0016] Through the above technical solution, the side plate acts as a barrier, preventing coolant from flowing out from both sides of the shielding plate and causing waste.

[0017] As a preferred embodiment of the present invention, an auxiliary heating mechanism is connected to the fixed frame, the auxiliary heating mechanism includes a second serpentine tube, the second serpentine tube is installed inside the fixed frame, the back of the light-concentrating plate abuts against the second serpentine tube, the base is located at the bottom of the heat pump body and a first serpentine tube is installed thereon, the first serpentine tube and the second serpentine tube are connected by a pair of connecting pipes, one of the connecting pipes is equipped with a water pump.

[0018] Through the above technical solution, the concentrating plate transfers heat to the finned plate, which then transfers it to the second serpentine tube. The water pump drives the flow of heat transfer oil inside the second and first serpentine tubes.

[0019] Heat transfer oil is injected inside the first and second serpentine tubes. A fin is installed inside the fixed frame. The fin is fixedly connected to the concentrating plate. The second serpentine tube passes through the fin.

[0020] Through the above technical solution, the heat transfer oil plays a role in heat transfer. The heat transfer oil flows inside the second serpentine tube and the first serpentine tube, which facilitates the transfer of heat from the second serpentine tube to the first serpentine tube, thereby heating the bottom of the heat pump body and reducing snow accumulation on the base plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention, by setting up a concentrating plate, a sliding frame, a fixed frame, a first electric push rod, and a second electric push rod, addresses the issue of frost formation on the evaporator during winter when it needs to absorb heat from the air. In sunny weather, the second electric push rod extends, pushing the sliding frame outwards and causing the concentrating plate to extend as well. The focal point of the concentrating plate falls on the evaporator, reflecting and converging sunlight onto it, thus melting the frost and providing additional heat, thereby improving the evaporator's efficiency. When sunlight passes the concentrating plate but does not reach the evaporator, a pair of photoresistors will not generate significant current changes, controlling the extension or retraction of the first electric push rod, which in turn rotates the fixed frame, adjusting the angle of the concentrating plate to ensure sunlight falls onto the evaporator.

[0023] 2. This invention incorporates a finned plate, a water pump, a second serpentine tube, and a first serpentine tube. The concentrator is made of metal, which facilitates the absorption of solar heat. The concentrator transfers heat to the finned plate, which then transfers it to the second serpentine tube. The water pump drives the flow of heat transfer oil inside the second and first serpentine tubes, transferring heat from the second serpentine tube to the first serpentine tube. This heats the bottom of the heat pump body, promoting the melting of snow accumulation at the bottom of the heat pump body and preventing disruption to its normal operation.

[0024] 3. This invention incorporates a shielding plate, a water storage tank, a fixed cylinder, and a spring. The shielding plate protects against rain and snow. When snow accumulates on top of the shielding plate, the weight of the snow causes it to rotate downwards, pushing the pressure rod into the fixed cylinder. The spring compresses, forcing air from inside the fixed cylinder through a second one-way valve into the connecting pipe. This air then enters the water storage tank, forcing the antifreeze out of the suction pipe. The antifreeze enters the drainage channel and is absorbed by the sponge strip. Once the sponge strip is saturated, the antifreeze flows out along the surface of the shielding plate, accelerating the melting of snow. After the snow melts or slides off, the spring pushes the pressure rod back to its original position. External air then enters the fixed cylinder through the air passage and the first one-way valve, resetting the pressure rod and shielding plate. This facilitates melting when snow accumulates again, ensuring the normal operation of the heat pump. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the evaporator section of the present invention;

[0026] Figure 2 This is a schematic diagram of the main structure of the heat pump of the present invention;

[0027] Figure 3 This is a schematic diagram of the shielding plate structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the water suction pipe part of the present invention;

[0029] Figure 5 This is a schematic diagram of the sponge strip structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the air pump component of the present invention.

[0031] Figure 7 This is a partial structural diagram of the auxiliary heating mechanism of the present invention;

[0032] Figure 8 This is a schematic diagram of the connecting pipe portion of the present invention;

[0033] Figure 9 This is a schematic diagram of the fixed frame portion of the present invention.

[0034] In the diagram: 1. Heat pump body; 2. Evaporator; 3. Base plate; 4. Base; 5. Shielding mechanism; 51. Shielding plate; 52. Side plate; 53. Sealing plug; 54. Fixing plate; 55. Air pump assembly; 551. Fixing cylinder; 552. Connecting pipe; 553. Pressure rod; 554. Air passage; 555. Piston; 556. First one-way valve; 557. Second one-way valve; 558. Spring; 56. Water suction pipe; 57. Water storage tank; 58. Drainage channel; 59. Sponge strip; 6. Heating mechanism; 61. Fixing frame; 62. Concentrating plate; 63. Sliding frame; 64. First electric push rod; 65. Second electric push rod; 66. Photoresistor; 7. Auxiliary heating mechanism; 71. First serpentine tube; 72. Connecting pipe; 73. Water pump; 74. Fin plate; 75. Second serpentine tube. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1-9 This invention provides a technical solution for a circulating air source heat pump:

[0037] according to Figure 1 , Figure 7 and Figure 8 As shown, a circulating air source heat pump includes a heat pump body 1 and an evaporator 2 on the heat pump body 1. A base plate 3 is fixedly connected to the bottom end of the heat pump body 1, and a base 4 is installed at the bottom end of the base plate 3. A heating mechanism 6 is connected to the base 4. The heating mechanism 6 includes a sliding frame 63, which is slidably connected to the base 4. A fixed frame 61 is rotatably connected to the sliding frame 63, and a concentrating plate 62 is installed on the fixed frame 61. The focal point of the concentrating plate 62 is located on the evaporator 2.

[0038] Furthermore, photoresistors 66 are installed at both the top and bottom of the evaporator 2, and a first electric push rod 64 is rotatably connected to the sliding frame 63. The telescopic end of the first electric push rod 64 is rotatably connected to the back of the fixed frame 61. The photoresistors 66, the first electric push rod 64 and the heat pump body 1 are electrically connected, so that the photoresistors 66 can detect whether the light reflected by the concentrator 62 falls on the evaporator 2, so that the first electric push rod 64 can control the concentrator 63 to rotate so that the reflected light falls on the evaporator 2.

[0039] Furthermore, a second electric push rod 65 is installed on the sliding frame 63. The telescopic end of the second electric push rod 65 is fixedly connected to the base 4. The second electric push rod 65 is used to push the sliding frame 63 to slide. The second electric push rod 65 is electrically connected to the heat pump body 1. A pair of second electric push rods 65 can be provided, located at both ends of the sliding frame 63 respectively, so as to make the extension of the sliding frame 63 more stable.

[0040] Furthermore, the fixing frame 61 is arc-shaped, and the light-concentrating plate 62 is made of metal. The arc-shaped fixing frame 61 is easy to adapt to the shape of the light-concentrating plate 62. The metal light-concentrating plate 62 can absorb heat while increasing wear resistance.

[0041] according to Figure 1 , Figure 7 , Figure 8 and Figure 9 As shown, a circulating air source heat pump has a shielding mechanism 5 connected to the top of the heat pump body 1. The shielding mechanism 5 includes a fixed plate 54. The fixed plate 54 is fixedly connected to the top of the heat pump body 1. A shielding plate 51 is rotatably connected to the top of the fixed plate 54. The top of the shielding plate 51 is inclined. A drainage groove 58 is provided at the top of the inclined surface of the shielding plate 51. A water storage tank 57 for storing antifreeze is provided inside the shielding plate 51. A suction pipe 56 is installed on the shielding plate 51. The drainage groove 58 and the water storage tank 57 are connected through the suction pipe 56. The suction pipe 56 extends into the bottom of the water storage tank 57. An air-pressing component 55 for resetting and air-pressing the water storage tank 57 is installed on the fixed plate 54. A sealing plug 53 for sealing the water storage tank 57 is screwed onto the fixed plate 54. Coolant can be added to the water storage tank 57 by unscrewing the sealing plug 53.

[0042] Furthermore, the air inflator assembly 55 includes a fixed cylinder 551, which is fixedly connected to the top of the fixed plate 54. A pressure rod 553 is slidably connected to the fixed cylinder 551, and a piston 555 is fixedly connected to the bottom of the pressure rod 553. A spring 558 abuts against the piston 555 and the fixed cylinder 551. An air passage 554 is provided on the pressure rod 553, and a first one-way valve 556 is installed at one end of the pressure rod 553 located in the air passage 554. External air communicates with the inside of the fixed cylinder 551 through the first one-way valve 556 and the air passage 554. A connecting pipe 552 is installed on the fixed cylinder 551, and one end of the connecting pipe 552 is connected to the water storage tank 57. A second one-way valve 557 is installed on the fixed cylinder 551 at the connecting pipe 552. Air inside the fixed cylinder 551... The water storage tank 57 is connected to the second one-way valve 557 and the connecting pipe 552. When snow accumulates, the pressure rod 553 pushes the piston 555 to move, and the spring 558 is compressed, thereby forcing the air inside the fixed cylinder 551 into the connecting pipe 552 through the second one-way valve 557. The air enters the water storage tank 57, thereby forcing the antifreeze inside the water storage tank 57 out from the suction pipe 56, thus melting the snow. After the snow melts or slides off, the spring 558 pushes the pressure rod 553 to reset, and external air enters the fixed cylinder 551 through the air passage 554 and the first one-way valve 556, thereby resetting the pressure rod 553 and the shielding plate 51, which facilitates melting when snow accumulates again, thus ensuring the normal operation of the heat pump body 1.

[0043] Furthermore, a sponge strip 59 is installed inside the drainage channel 58 on the shielding plate 51. The sponge strip 59 blocks the drainage channel 58 to prevent coolant from flowing out directly at the water suction pipe 56. The sponge strip 59 allows the coolant to flow evenly onto the surface of the shielding plate 51.

[0044] Furthermore, a pair of side plates 52 are fixedly connected to the shielding plate 51. The pair of side plates 52 are distributed at both ends of the drainage groove 58. The side plates 52 play a blocking role to prevent coolant from flowing out from both sides of the shielding plate 51 and causing waste.

[0045] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a circulating air source heat pump has an auxiliary heating mechanism 7 connected to a fixed frame 61. The auxiliary heating mechanism 7 includes a second serpentine tube 75. The second serpentine tube 75 is installed inside the fixed frame 61. The back of the concentrating plate 62 abuts against the second serpentine tube 75. The base 4 is located at the bottom of the heat pump body 1 and has a first serpentine tube 71 installed thereon. The first serpentine tube 71 and the second serpentine tube 75 are connected by a pair of connecting pipes 72. A water pump 73 is installed on one of the connecting pipes 72. Heat transfer oil is injected into the first serpentine tube 71 and the second serpentine tube 75.

[0046] Furthermore, a finned plate 74 is installed inside the fixed frame 61. The finned plate 74 is fixedly connected to the concentrating plate 62. The second serpentine tube 75 passes through the finned plate 74. The concentrating plate 62 transfers heat to the finned plate 74, and then to the second serpentine tube 75. The water pump 73 drives the flow of heat transfer oil inside the second serpentine tube 75 and the first serpentine tube 71, transferring the heat inside the second serpentine tube 75 to the first serpentine tube 71. This heats the bottom of the heat pump body 1, promoting the melting of snow at the bottom of the heat pump body 1. The finned plate 74 facilitates heat transfer, distributing heat evenly on the second serpentine tube 75, thus preventing the heat in the environment around the heat pump body 1 from being reduced when there is a lot of snow.

[0047] In practical use, during winter, the evaporator 2 needs to absorb heat from the air for heating, which makes it prone to frost formation. When the sun is shining, the second electric push rod 65 is extended, pushing the sliding frame 63 to extend, which in turn extends the concentrator plate 62. The focal point of the concentrator plate 62 falls on the evaporator 2, thus reflecting and concentrating the sunlight onto the evaporator 2, melting the frost on the evaporator 2 and providing some heat energy, thereby improving the efficiency of the evaporator 2. When the sunlight passes through the concentrator plate 62 and does not shine on the evaporator 2, a pair of photosensitive... Resistor 66 will not produce a large current change, thus controlling the extension or retraction of the first electric push rod 64, which in turn drives the fixed frame 61 to rotate, thereby adjusting the angle of the concentrator 62 to facilitate sunlight falling onto the evaporator 2. The concentrator 62 is made of metal, which facilitates the absorption of solar heat. The concentrator 62 transfers heat to the fins 74, which then transfers it to the second serpentine tube 75. Driven by the water pump 73, the heat transfer oil inside the second serpentine tube 75 and the first serpentine tube 71 flows, transferring the heat from the second serpentine tube 75 to the first serpentine tube. 71, thereby heating the bottom of the heat pump body 1, promoting the melting of snow accumulation at the bottom of the heat pump body 1, and avoiding affecting the normal operation of the heat pump body 1. The shielding plate 51 is used to shield from rain and snow. When snow accumulates on the top of the shielding plate 51, the shielding plate 51 will rotate downwards under the weight of the snow, thereby pushing the pressure rod 553 to move into the fixed cylinder 551. The spring 558 will be compressed, thereby forcing the air inside the fixed cylinder 551 into the connecting pipe 552 through the second one-way valve 557. The air enters the water storage tank 57, thereby preventing the water storage tank 57 from freezing. Liquid is forced out from inside the suction pipe 56, and antifreeze enters the interior of the drainage groove 58, where it is absorbed by the sponge strip 59. After the sponge strip 59 is saturated, the antifreeze will flow out along the surface of the shielding plate 51, thereby accelerating the melting of snow on the surface of the shielding plate 51. After the snow melts or slides off, the spring 558 pushes the pressure rod 553 to reset, and external air will enter the interior of the fixed cylinder 551 through the air passage 554 and the first one-way valve 556, thereby resetting the pressure rod 553 and the shielding plate 51, making it easier to melt snow when it accumulates again, thus ensuring the normal operation of the heat pump body 1.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A circulating air source heat pump, comprising a heat pump body (1) and an evaporator (2) on the heat pump body (1), wherein a base plate (3) is fixedly connected to the bottom end of the heat pump body (1), and a base (4) is installed at the bottom end of the base plate (3), characterized in that: A heating mechanism (6) is connected to the base (4). The heating mechanism (6) includes a sliding frame (63). The sliding frame (63) is slidably connected to the base (4). A fixed frame (61) is rotatably connected to the sliding frame (63). A concentrating plate (62) is installed on the fixed frame (61). The focal point of the concentrating plate (62) is located on the evaporator (2). A shielding mechanism (5) is connected to the heat pump body (1). The shielding mechanism (5) includes a fixed plate (54). A fixed plate (54) is fixedly connected to the top of the heat pump body (1). (54) A shielding plate (51) is rotatably connected to the top. The top of the shielding plate (51) is inclined. A drainage groove (58) is provided at the top of the inclined surface of the shielding plate (51). A water storage tank (57) for storing antifreeze is provided inside the shielding plate (51). A suction pipe (56) is installed on the shielding plate (51). The drainage groove (58) and the water storage tank (57) are connected by the suction pipe (56). The suction pipe (56) extends into the bottom of the water storage tank (57). A pump for resetting and inflating the water storage tank (57) is installed on the fixing plate (54). An air assembly (55) is provided, wherein a sealing plug (53) for sealing a water storage tank (57) is screwed onto a fixing plate (54). The air assembly (55) includes a fixing cylinder (551), the top of which is fixedly connected to the fixing plate (54). A pressure rod (553) is slidably connected to the fixing cylinder (551). A piston (555) is fixedly connected to the bottom of the pressure rod (553). A spring (558) abuts against the piston (555) and the fixing cylinder (551). An air passage (554) is provided on the pressure rod (553). A first check valve (556) is installed at one end of the air passage (554). External air is connected to the inside of the fixed cylinder (551) through the first check valve (556) and the air passage (554). A connecting pipe (552) is installed on the fixed cylinder (551). One end of the connecting pipe (552) is connected to the water storage tank (57). A second check valve (557) is installed at the connecting pipe (552) on the fixed cylinder (551). The air inside the fixed cylinder (551) is connected to the inside of the water storage tank (57) through the second check valve (557) and the connecting pipe (552).

2. The circulating air source heat pump according to claim 1, characterized in that: Photoresistors (66) are installed at the top and bottom of the evaporator (2). A first electric push rod (64) is rotatably connected to the sliding frame (63). The telescopic end of the first electric push rod (64) is rotatably connected to the back of the fixed frame (61). The photoresistors (66), the first electric push rod (64) and the heat pump body (1) are electrically connected.

3. A circulating air source heat pump according to claim 2, characterized in that: A second electric push rod (65) is installed on the sliding frame (63). The telescopic end of the second electric push rod (65) is fixedly connected to the base (4). The second electric push rod (65) is used to push the sliding frame (63) to slide. The second electric push rod (65) is electrically connected to the heat pump body (1).

4. A circulating air source heat pump according to claim 2, characterized in that: The fixed frame (61) is arc-shaped, and the light-concentrating plate (62) is made of metal and is arc-shaped.

5. A circulating air source heat pump according to claim 1, characterized in that: The shielding plate (51) is located inside the drainage channel (58) and a sponge strip (59) is installed thereon, which blocks the drainage channel (58).

6. A circulating air source heat pump according to claim 1, characterized in that: A pair of side plates (52) are fixedly connected to the shielding plate (51), and the pair of side plates (52) are distributed at both ends of the drainage channel (58).

7. A circulating air source heat pump according to claim 1, characterized in that: An auxiliary heating mechanism (7) is connected to the fixed frame (61). The auxiliary heating mechanism (7) includes a second serpentine tube (75). The second serpentine tube (75) is installed inside the fixed frame (61). The back of the light-concentrating plate (62) abuts against the second serpentine tube (75). The base (4) is located at the bottom of the heat pump body (1) and a first serpentine tube (71) is installed thereon. The first serpentine tube (71) and the second serpentine tube (75) are connected by a pair of connecting pipes (72). A water pump (73) is installed on one of the connecting pipes (72).

8. A circulating air source heat pump according to claim 7, characterized in that: Heat transfer oil is injected inside the first serpentine tube (71) and the second serpentine tube (75).

9. A circulating air source heat pump according to claim 7, characterized in that: The fixed frame (61) is equipped with a fin plate (74), which is fixedly connected to the light-concentrating plate (62), and the second serpentine tube (75) passes through the fin plate (74).

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