An air heat source pump capable of recovering waste heat

Abstract

The present invention discloses an air heat source pump capable of recovering waste heat, and relates to the field of air heat source pumps, including a main case, a hot air outlet is provided on one side of the main case, and an evaporation box is connected to one side of the hot air outlet, the evaporation frame is installed in the evaporation box, and multiple layers of serpentine tubes for evaporating refrigerant are installed at intervals along the height direction in the evaporation frame, the serpentine tubes are connected at intervals with fins arranged along the radial direction, the hot air outlet faces the evaporation frame, and the air outlet and the fins are parallel to each other, the fan is installed in the evaporation box, and is provided at the top and bottom of the evaporation frame, the blowing direction of the fan is both towards the evaporation frame, and the blowing direction is also parallel to the fins. The present invention effectively utilizes the waste heat in the exhaust air to promote the evaporation of the refrigerant in the evaporation frame, thereby improving the evaporation efficiency of the refrigerant in the evaporation frame, and the hot air discharged from the main case can also play a role in defrosting the fins, further utilizing the waste heat in the exhaust air.

Description

Technical Field

[0001] The present invention relates to the field of air heat source pumps, and in particular to an air heat source pump capable of recovering waste heat. Background Art

[0002] The air heat source pump is an efficient and energy-saving device based on heat pump technology. It consumes a small amount of electricity to drive the compressor, absorbs low-temperature heat energy from the air and converts it into high-temperature heat energy to meet diversified needs such as heating, cooling, and hot water.

[0003] The Chinese patent with relevant announcement number CN118168193B discloses an anti-frost air heat source pump, including a box body, an air inlet opened on the side of the box body and an air outlet located at the top of the box body, a heat dissipation frame is provided in the box body, and also includes a guide assembly, including a guide frame fixedly installed inside the box body, a plurality of guide plates rotatably installed on the guide frame, an adjustment plate is slidably installed on the inner wall of the box body, and the adjustment plate squeezes the guide plate when it moves toward the guide frame, and the gap between the guide plates becomes smaller, a water absorption groove is provided on the side of the guide plate close to the air inlet, a first water absorption part is provided in the water absorption groove, a first baffle is provided in the box body that slides synchronously with the adjustment plate, and the first baffle is in sealing contact with the bottom of the guide plate, a guide hole is provided on the first baffle, a second baffle is fixedly installed in the box body, the second baffle is a right-angle plate, the first baffle moves through the second baffle away from the inner wall of the box body, and the second baffle is provided with a second water absorption part.

[0004] In response to the above-mentioned related technologies, in order to solve the frosting problem at the evaporator, the existing air heat source pump is provided with two sets of alternating air duct structures, which alternately defrost and drain the air ducts that are not in use. The two sets of air duct structures are likely to increase the equipment volume and manufacturing cost of the air heat source pump, and the defrosting and drainage structures also require a large number of peripheral components to achieve the required functions, further increasing the use cost of the air heat source pump. In addition, the exhaust gas discharged from the drying box in the air heat source pump in the prior art is generally discharged directly into the air, and it is not easy to effectively utilize the heat in the exhaust gas. In summary, the existing air heat source pump is not easy to effectively utilize the residual heat in the exhaust gas. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide an air heat source pump that can recover waste heat, so as to solve the technical problem that the existing air heat source pump is not easy to effectively utilize the residual heat in the exhaust gas.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an air heat source pump capable of recovering waste heat, comprising a main case, a hot air outlet provided on one side of the main case, and an evaporation box connected to one side of the hot air outlet, and an evaporation frame, the evaporation frame being installed in the evaporation frame, the evaporation frame having multiple layers of serpentine tubes for evaporating the refrigerant installed at intervals along the height direction, the serpentine tubes being connected at intervals with fins arranged along the radial direction, the hot air outlet facing the evaporation frame, and the air outlet and the fins being parallel to each other, and a fan being also included, the fan being installed in the evaporation frame, and being arranged at both the top and bottom ends of the evaporation frame, the blowing direction of the fan facing the evaporation frame, and the blowing direction is also parallel to the fins.

[0007] By adopting the above technical solution, the waste heat in the exhaust air is effectively utilized to promote the evaporation of the refrigerant in the evaporator rack, thereby improving the evaporation efficiency of the refrigerant in the evaporator rack. At the same time, in a low-temperature operating environment, the hot air discharged from the main box can also play a role in defrosting the fins, further utilizing the waste heat in the exhaust air, thereby improving the efficiency of the air heat source pump.

[0008] The present invention is further configured such that the evaporator is provided with air inlets at both the front and rear ends of the fan installation position, and louvers are installed at the air inlets.

[0009] Preferably, a fan is used to blow air toward the evaporation rack in the evaporation box.

[0010] The present invention is further configured such that the evaporation rack is provided with an exhaust outlet at one end away from the hot air outlet, the main chassis is installed with a sealing plate at the hot air outlet, the sealing plate is connected with a hollow fixed box along the airflow direction, a movable box is slidably connected inside the fixed box, the end of the movable box away from the hot air outlet can extend between the fins, and a second air outlet is provided on both the top and bottom surfaces.

[0011] Preferably, the hot air flowing out from the second air outlet of the mobile box is blown directly onto the fins, so that the hot air discharged from the hot air outlet flows better along the length direction of the fins, increasing the contact time with the fins, thereby improving the heat exchange efficiency.

[0012] The present invention is further configured such that the moving box is provided with a baffle inclined toward the exhaust port at the second air outlet, and the projection of the baffle toward the exhaust port coincides with the rectangular space between two adjacent layers of fins.

[0013] Preferably, the baffle can guide the airflow leaving the moving box.

[0014] The present invention is further configured such that the mobile box is provided with a first air outlet in the direction away from the exhaust outlet of the second air outlet, the mobile box is fixedly connected with a baffle between the first air outlet and the second air outlet, and the mobile box is rotatably connected with a baffle at the second air outlet for preventing airflow from flowing out of the second air outlet.

[0015] Preferably, the baffle can close the second air outlet after rotation, allowing the air in the mobile box to flow out from the first air outlet.

[0016] The present invention is further configured such that the baffle is provided with an oblique chamfer at a position away from its own rotating shaft. When the movable box slides toward the fin, the baffle will be pushed to a position in contact with the baffle bar. When the baffle contacts the baffle bar, the airflow in the movable box is discharged through the first air outlet. When the movable box does not extend between fins of adjacent heights, the baffle is tilted toward the exhaust port.

[0017] Preferably, when the moving box moves toward the fin, the baffle contacts the fin, and the relative movement between the fin and the baffle can cause the baffle to rotate to a position against the baffle bar.

[0018] The present invention is further configured such that a slide groove is provided in the movable box at a position close to the first air outlet, a sliding plate is slidingly provided in the slide groove, a movable air outlet that can overlap with the second air outlet is provided at one end of the sliding plate facing the exhaust outlet, and a spring is provided between the end of the sliding plate away from the second air outlet and the inner wall of the slide groove.

[0019] Preferably, the sliding sheet can block the first air outlet when the baffle is tilted toward the air outlet.

[0020] The present invention is further configured such that the movable box is fixedly connected to a scraper at one end away from the fixed box, the top and bottom surfaces of the scraper respectively contact two layers of fins at adjacent heights, and the scraper is spaced apart with scraping strips that contact the side surfaces of the fins.

[0021] Preferably, the scraper and the scraper strips on the scraper can first scrape off the thicker frost layer on the fin during the movement of the moving box, thereby improving the utilization rate of the heat in the hot air flowing out of the hot air outlet.

[0022] The present invention is further configured such that a driving mechanism for driving the moving box to slide is provided between the moving box and the fixed box.

[0023] Preferably, a driving structure is utilized to drive the moving box to telescopically move.

[0024] The present invention is further configured such that the evaporation box is connected to a liquid return pipe passing through all the serpentine tubes at one end of the evaporation frame close to the main box, and the evaporation box is connected to a steam pipe passing through all the serpentine tubes at one end of the evaporation frame away from the main box.

[0025] Preferably, the refrigerant condensed in the main box is evenly distributed into each serpentine tube through the return pipe, and the gaseous refrigerant evaporated in the serpentine tube returns to the main box through the steam pipe.

[0026] In summary, the present invention mainly has the following beneficial effects:

[0027] The present invention arranges the evaporator box at the hot air outlet of the main box. After leaving the main box, the hot air directly goes to the evaporation rack in the evaporator box, effectively utilizing the residual heat in the exhaust air to promote the evaporation of the refrigerant in the evaporation rack, thereby improving the evaporation efficiency of the refrigerant in the evaporation rack. At the same time, in a low-temperature operating environment, the hot air exhausted from the main box can also play a role in defrosting the fins, further utilizing the residual heat in the exhaust air, thereby improving the efficiency of the air heat source pump.

[0028] The present invention provides an air guide structure at the hot air outlet of the main chassis. The air blown out from the main chassis can flow along the direction of the fin arrangement under the guidance of the air guide structure, further increasing the heat exchange efficiency between the hot air and the fins, and avoiding the waste of part of the heat energy due to the short contact time between the hot air and the fins.

[0029] The present invention connects a fixed box at the hot air outlet of the main case and slides a sliding box in the fixed box, and changes the direction of the airflow by rotating a baffle connected to the end of the sliding box. When the ambient temperature is too low, the sliding box can extend the fins near the far end to defrost it. The hot air flowing out under the guidance of the baffle flows in the opposite direction of the extending direction of the sliding box, which increases the contact time between the hot air and the fins. It can effectively avoid the distance between the end of the sliding box and the far end of the fin being too close due to the extension of the sliding box, thereby further improving the utilization rate of the waste heat of the exhaust air while improving the defrosting ability.

[0030] The present invention fixes a scraper at the end of the sliding box. When the moving box is extended, the scraper will first scrape off the thicker frost layer attached to the fins, and then use the residual heat of the exhaust air to defrost the remaining thin frost layer. When the frost on the fins is thicker, the defrosting ability of the fins can be further guaranteed. At the same time, the residual heat in the exhaust air can also be better utilized, so that the exhaust air can transfer the residual heat to the fins after defrosting. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A perspective view of the present invention;

[0032] Figure 2A three-dimensional diagram of the internal structure of the main box and the evaporation box of the present invention;

[0033] Figure 3 This is a three-dimensional diagram of the internal structure of the main box and the evaporation box from another perspective of the present invention;

[0034] Figure 4 A perspective view of the internal structure of the evaporation rack of the present invention and the movable box in a state where the movable box is not inserted into the evaporation rack;

[0035] Figure 5 For the present invention Figure 4 A magnified view of middle A;

[0036] Figure 6 A three-dimensional diagram of the internal structure of the evaporation rack and the movable box extending into the evaporation rack of the present invention;

[0037] Figure 7 For the present invention Figure 6 Enlarged view of middle B;

[0038] Figure 8 A three-dimensional diagram of the internal structure of the mobile box of the present invention, which is extended into the evaporation rack;

[0039] Figure 9 For the present invention Figure 8 Enlarged view of C in the middle.

[0040] Description of reference numerals:

[0041] 1. Main chassis; 101. Cover plate; 2. Evaporation box; 201. Louver; 202. Fan; 3. Hot air outlet; 4. Exhaust vent; 5. Air inlet; 6. Evaporation rack; 7. Fixed box; 8. Movable box; 801. Baffle; 802. First air outlet; 803. Second air outlet; 804. Slide; 9. Drive motor; 10. Gear; 11. Toothed belt; 12. Liquid return pipe; 13. Steam pipe; 14. Serpentine pipe; 15. Fin; 16. Sliding plate; 1601. Movable air outlet; 17. Baffle; 18. Scraper; 1801. Scraper strip. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0043] The following describes an embodiment of the present invention based on its overall structure. Example 1

[0044] An air heat source pump capable of recovering waste heat, see Figure 1-9, including a main case 1. Specifically, the main case 1 is equipped with mature components in the prior art, such as a drying box, a condensing box, a compressor, and a throttle valve. This application does not make any improvements to the drying box, the condensing box, the compressor, the throttle valve and other components, and they will not be described here. A hot air outlet 3 is provided on one side of the main case 1, and an evaporation box 2 is connected to one side of the hot air outlet 3. The hot air flowing through the drying box is discharged from the hot air outlet 3, and the heat absorption component inside the evaporation box 2 is used to utilize the residual heat in the hot air.

[0045] It also includes an evaporation rack 6, which is installed in the evaporation box 2. Multiple layers of serpentine tubes 14 for evaporating the refrigerant are installed at intervals along the height direction in the evaporation rack 6. The serpentine tubes 14 are connected at intervals with fins 15 arranged in the radial direction. Specifically, the serpentine tubes 14 pass through each fin 15 of the same height, and the end of the fin 15 away from the main box 1 is fixedly connected to the evaporation rack 6. The hot air outlet 3 faces the evaporation rack 6, and the air outlet and the fin 15 are parallel to each other.

[0046] It also includes a fan 202, which is installed in the evaporation box 2 and is set at the top and bottom of the evaporation frame 6. The blowing direction of the fan 202 is toward the evaporation frame 6, and the blowing direction is also parallel to the fins 15. When the fan 202 is working, it can blow air toward the fins 15, using the heat in the air to evaporate the refrigerant, thereby achieving the purpose of energy saving and efficiency improvement.

[0047] Furthermore, the evaporator box 2 is connected to a return liquid pipe 12 passing through all the serpentine tubes 14 at the end of the evaporator rack 6 close to the main box 1, and the evaporator box 2 is connected to a steam pipe 13 passing through all the serpentine tubes 14 at the end of the evaporator rack 6 away from the main box 1. The refrigerant condensed in the main box 1 is evenly dispersed into each serpentine tube 14 through the return liquid pipe 12, and the gaseous refrigerant evaporated in the serpentine tube 14 returns to the main box 1 through the steam pipe 13.

[0048] In the above embodiment, please refer to Figure 1-3 The evaporator box 2 is provided with air inlets 5 at both the front and rear ends of the installation position of the fan 202. The air inlet 5 is installed with a louver 201. The fan 202 is used to blow air to the evaporation rack 6 in the evaporator box 2, and then the heat in the air is used to evaporate the refrigerant in the serpentine tube 14.

[0049] In the above embodiment, please refer to Figure 3-5The evaporation rack 6 is provided with an exhaust port 4 at the end away from the hot air outlet 3, and the main chassis 1 is installed with a sealing plate 101 at the hot air outlet 3. The sealing plate 101 is connected with a hollow fixed box 7 along the airflow direction. The hot air flowing out of the main chassis 1 can continue to flow along each fixed box 7 under the obstruction of the sealing plate 101. A movable box 8 is slidably connected inside the fixed box 7. The end of the movable box 8 away from the hot air outlet 3 can be extended between the fins 15, and a second air outlet 803 is provided on the top and bottom surfaces. The hot air flowing out from the second air outlet 803 of the movable box 8 is directly blown toward the fins 15, so that the hot air discharged from the hot air outlet 3 can flow better along the length direction of the fins 15, thereby increasing the contact time with the fins 15, thereby improving the heat exchange efficiency.

[0050] Specifically, a driving mechanism for driving the mobile box 8 to slide is provided between the mobile box 8 and the fixed box 7. The driving structure specifically includes a driving motor 9 installed on the inner wall of the mobile box 8. The driving motor 9 is specifically installed at one end of the mobile box 8 close to the closing plate 101. A toothed belt 11 is provided on the inner wall of the fixed box 7 along the length direction. The output end of the driving motor 9 is connected to a gear 10 meshing with the toothed belt 11. When the driving motor 9 is working, the gear rack structure can be used to conveniently realize the movement of the mobile box 8, and the driving structure can be used to drive the mobile box 8 to move telescopically. In other undisclosed embodiments, the driving structure can also be a structure such as a telescopic rod connected between the mobile box 8 and the fixed box 7, and the telescopic movement of the mobile box 8 can be realized by the telescopic rod.

[0051] Furthermore, the mobile box 8 is provided with a baffle 17 inclined toward the exhaust port 4 at the second air outlet 803. The projection of the baffle 17 toward the exhaust port 4 coincides with the rectangular space between the two adjacent layers of fins 15. The baffle 17 can guide the airflow leaving the mobile box 8. The airflow leaving the mobile box 8 can better flow along the length direction of the fin 15 under the guidance of the baffle 17. Example 2

[0052] An air heat source pump capable of recovering waste heat, see Figure 1-9 On the basis of the first embodiment, the difference from the first embodiment is that the mobile box 8 is provided with a first air outlet 802 in the direction of the second air outlet 803 away from the exhaust port 4, the mobile box 8 is fixedly connected with a baffle 801 between the first air outlet 802 and the second air outlet 803, and the mobile box 8 is rotatably connected with a baffle 17 at the second air outlet 803 for preventing air flow from flowing out of the second air outlet 803. The baffle 17 can close the second air outlet 803 after rotation. Specifically, the baffle 17 closes the air duct in the mobile box 8 where the air flows out of the second air outlet 803, so that the air in the mobile box 8 flows out from the first air outlet 802.

[0053] For details, please refer to Figure 5 and Figure 9 , the baffle 17 is provided with an oblique chamfer at a position away from its own rotation axis. When the moving box 8 slides toward the fin 15, the moving box 8 continues to slide under the obstruction of the fin 15, and the baffle 17 will be pushed to a position in contact with the baffle 801. At this time, the fin 15 just contacts the end of the baffle 17 away from its own rotation axis. When the baffle 17 contacts the baffle 801, the airflow in the moving box 8 is discharged through the first air outlet 802. When the moving box 8 moves toward the fin 15, the baffle 17 contacts the fin 15. The relative movement between the fin 15 and the baffle 17 can cause the baffle 17 to rotate to a position against the baffle 801.

[0054] Furthermore, when the moving box 8 does not extend between the fins 15 of adjacent heights, the baffle 17 tilts toward the exhaust port 4. When the baffle 17 leaves the position where the fins 15 are located and loses contact with the fins 15, it is pushed by the airflow in the moving box 8 and rotates toward the exhaust port 4, resting on the side of the second air outlet 803, thereby tilting toward the exhaust port 4.

[0055] When the baffle 17 is rotated toward the air outlet 4, the sliding piece 16 can be easily reset by the elastic force of the spring. Example 3

[0056] An air heat source pump capable of recovering waste heat, see Figure 4-7 On the basis of the second embodiment, the difference from the second embodiment is that the movable box 8 is fixedly connected to a scraper 18 at the end away from the fixed box 7, and the top and bottom surfaces of the scraper 18 are respectively in contact with the two adjacent layers of fins 15 at the height. Specifically, the top surface of the scraper 18 is in contact with the bottom surface of the upper fin 15, and the bottom surface of the scraper 18 is in contact with the top surface of the lower fin 15.

[0057] Furthermore, scraper strips 1801 that contact the side surfaces of the fins 15 are connected to the scraper 18 at intervals. Specifically, the scraper strips 1801 are fixedly connected to the top and bottom surfaces of the scraper 18 and are provided on both sides of each group of fins 15. The length of the scraper strips 1801 does not exceed the distance between the top or bottom surface of the fin 15 and the serpentine tube 14, so as to avoid interference between the scraper strips 1801 and the serpentine tube 14 during the movement of the moving box 8. The scraper 18 and the scraper strips 1801 on the scraper 18 can first scrape off the thicker frost layer on the fin 15 during the movement of the moving box 8, thereby improving the utilization rate of the heat in the hot air flowing out of the hot air outlet 3.

[0058] The present invention is specifically working as follows:

[0059] The hot air exhausted from the main chassis 1 is discharged to the evaporation rack 6 through the hot air outlet 3. The fans installed at the top and bottom of the evaporation rack 6 blow air toward the evaporation rack 6 at the same time, allowing the air to enter the evaporation box 2 through the air inlet 5, exchange heat with the fins 15 and the serpentine tube 14, and then be discharged from the exhaust port 4. During this process, the hot air blown out from the hot air outlet 3 passes through the fixed box 7 and the movable box 8, and then flows through the fins 15 under the guidance of the inclined baffle 17. After exchanging heat with the fins 15, it is also discharged from the exhaust port 4.

[0060] When the fins 15 on the evaporation rack 6 are severely frosted, the fins 15 near the moving box 8 are closer to the hot air, and the frosting condition will be significantly better than the fins 15 far away from the moving box 8. At this time, the driving structure between the moving box 8 and the fixed box 7 pushes the moving box 8 to slide toward the fins 15, and the scraper 18 and the scraper bar 1801 first scrape off the thicker frost layer, and the baffle 17 will rotate toward the baffle bar 801 after being blocked by the fins 15 until it rests on the baffle bar 801. The baffle 17 rests on the baffle bar 801. After that, it can enter between the two layers of fins 15 at adjacent heights. The baffle 17 will push the sliding piece 16 to retract into the slide groove 804 during the rotation process. The sliding piece 16 compresses the spring during the retraction process. When the baffle 17 is placed on the baffle bar 801, the air flow discharged from the mobile box 8 is discharged through the first air outlet 802. The direction in which the hot air leaves the mobile box 8 is obliquely away from the exhaust port 4, thereby further increasing the contact time between the hot air and the fins 15 and ensuring that the heat in the hot air is more fully utilized by the fins 15.

[0061] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An air heat source pump capable of recovering waste heat, characterized in that: include: A main box (1), wherein a hot air outlet (3) is provided on one side of the main box (1), and an evaporation box (2) is connected to one side of the hot air outlet (3); An evaporation rack (6), the evaporation rack (6) being installed in the evaporation box (2), the evaporation rack (6) having multiple layers of serpentine tubes (14) for evaporating the refrigerant installed at intervals along the height direction, the serpentine tubes (14) being connected at intervals with fins (15) arranged in the radial direction, the hot air outlet (3) facing the evaporation rack (6), and the air outlet and the fins (15) being parallel to each other; The fan (202) is installed in the evaporation box (2) and is provided at the top and bottom of the evaporation rack (6). The blowing direction of the fan (202) is toward the evaporation rack (6), and the blowing direction is also parallel to the fins (15). The evaporation rack (6) is provided with an exhaust port (4) at one end away from the hot air outlet (3). The main box (1) is provided with a sealing plate (101) at the hot air outlet (3). The sealing plate (101) is connected to a hollow solid plate along the airflow direction. A fixed box (7) is provided, wherein a movable box (8) is slidably connected inside the fixed box (7), wherein one end of the movable box (8) away from the hot air outlet (3) can extend between the fins (15), and a second air outlet (803) is provided on both the top and bottom surfaces, and the movable box (8) is provided with a baffle (17) inclined toward the exhaust port (4) at the second air outlet (803), wherein the projection of the baffle (17) toward the exhaust port (4) coincides with the rectangular space between two adjacent layers of fins (15).

2. The air heat source pump capable of recovering waste heat according to claim 1, characterized in that: The evaporation box (2) is provided with air inlets (5) at both the front and rear ends of the fan (202) installation position, and louvers (201) are installed at the air inlets (5).

3. The air heat source pump capable of recovering waste heat according to claim 1, characterized in that: The movable box (8) is provided with a first air outlet (802) in a direction away from the exhaust port (4) from the second air outlet (803); a blocking bar (801) is fixedly connected between the first air outlet (802) and the second air outlet (803) of the movable box (8); and a baffle (17) is rotatably connected to the second air outlet (803) of the movable box (8) for preventing airflow from flowing out of the second air outlet (803).

4. The air heat source pump capable of recovering waste heat according to claim 3, characterized in that: The baffle (17) is provided with an oblique chamfer at a position away from its own rotation axis. When the movable box (8) slides toward the fin (15), the baffle (17) is pushed to a position where it contacts the baffle bar (801). When the baffle (17) contacts the baffle bar (801), the airflow in the movable box (8) is discharged through the first air outlet (802). When the movable box (8) does not extend between the fins (15) of adjacent heights, the baffle (17) is tilted toward the exhaust port (4).

5. The air heat source pump capable of recovering waste heat according to claim 4, characterized in that: A slide groove (804) is provided in the movable box (8) at a position close to the first air outlet (802), a sliding plate (16) is slidably provided in the slide groove (804), a movable air outlet (1601) capable of overlapping with the second air outlet (803) is provided at one end of the sliding plate (16) facing the air outlet (4), and a spring is provided between the end of the sliding plate (16) away from the second air outlet (803) and the inner wall of the slide groove (804).

6. The air heat source pump capable of recovering waste heat according to claim 1, characterized in that: The movable box (8) is fixedly connected to a scraper (18) at one end away from the fixed box (7); the top surface and the bottom surface of the scraper (18) are respectively in contact with two layers of fins (15) at adjacent heights; and scraper strips (1801) contacting the side surfaces of the fins (15) are connected to the scraper (18) at intervals.

7. The air heat source pump capable of recovering waste heat according to claim 1, characterized in that: A driving mechanism for driving the movable box (8) to slide is provided between the movable box (8) and the fixed box (7).

8. The air heat source pump capable of recovering waste heat according to claim 1, characterized in that: The evaporation box (2) is connected to a liquid return pipe (12) passing through all the serpentine tubes (14) at one end of the evaporation frame (6) close to the main box (1), and the evaporation box (2) is connected to a steam pipe (13) passing through all the serpentine tubes (14) at one end of the evaporation frame (6) away from the main box (1).

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