Air source heat pump defrosting device

Abstract

This utility model belongs to the field of heat pump defrosting technology, specifically an air source heat pump defrosting device. The frame is externally fitted with an outer sealing plate, and a fixing beam is installed on the surface of the support plate. An evaporator is mounted on one side of the fixing beam, and a heating base is installed at the bottom of the evaporator. A heat-insulating fixing beam is installed on the back of the evaporator, with a heat-insulating layer in the middle. A fan panel is installed on the other side of the evaporator, and the surface of the fan panel has multiple sets of circular slots. By adding a multi-fan mounting panel to the back of the evaporator and mounting multiple fans on its surface, the load on the machine can be effectively reduced during long-term high-load operation, improving defrosting efficiency. Furthermore, two power supplies are installed on the bottom electrical distribution board, reducing the pressure on a single power supply, improving defrosting performance, reducing the power load during long-term operation, enhancing safety, and extending the device's lifespan.

Description

Technical Field

[0001] This utility model belongs to the field of heat pump defrosting technology, specifically an air source heat pump defrosting device. Background Technology

[0002] An air source heat pump is an energy-saving device that uses heat energy from the ambient air for heating, cooling, or providing hot water. It absorbs heat from a low-temperature heat source and transfers it to a high-temperature heat source through the reverse Carnot cycle principle. It has a high energy efficiency ratio and is environmentally friendly. During operation, it needs to be used with a defrosting device. The defrosting device is a key component for air source heat pumps to operate in low-temperature and high-humidity environments. It is used to remove frost from the evaporator surface and ensure the system operates efficiently and stably.

[0003] In existing technologies, defrosting devices typically require defrosting operations during use, which necessitates processing with mechanical equipment. Defrosting equipment is commonly used and has a wide range of applications. A defrosting device usually consists of a frame, power supply, transmission mechanism, evaporator, compressor, insulation layer, heating base, gas delivery pipe, and defrosting chamber. A motor drives the compressor, which in turn drives the defrosting chamber. A heater further assists in defrosting the refrigerated components within the chamber, thus completing the defrosting operation.

[0004] In current technology, defrosting devices on the market typically operate via a power source installed at the bottom. A motor drives a compressor, which in turn drives the defrosting chamber. A heater assists in defrosting the refrigerated components within the chamber. However, during the defrosting process, relying solely on a single fan during prolonged high-load operation is slow and inefficient, placing significant stress on the power source at the bottom and posing certain safety hazards. Therefore, to address these issues, an air-source heat pump defrosting device is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and address the problems of existing equipment, this utility model proposes an air source heat pump defrosting device.

[0006] The technical solution adopted by this utility model to solve its technical problem is an air source heat pump defrosting device, including a frame, an outer sealing plate assembled on the outside of the frame, a support plate assembled in the middle of the frame, a fixing beam installed on the surface of the support plate, an evaporator assembled on one side of the fixing beam, a heating base installed at the bottom of the evaporator, a heat insulation fixing beam installed on the back of the evaporator, a heat insulation layer assembled in the middle of the heat insulation fixing beam, a fan panel installed on the other side of the evaporator, a plurality of circular slots opened on the surface of the fan panel, a fan assembled in the slots, a power distribution board installed below the support plate, and a power supply installed on the surface of the power distribution board. By adding a multi-fan mounting panel to the back of the evaporator, the defrosting efficiency is improved.

[0007] Preferably, the surface of the power distribution board is equipped with a fixed rail, and the front end of the fixed beam is equipped with a limit plate. The compressor is driven by a motor to operate, thereby driving the defrosting chamber to work. With the help of a heater, the refrigeration components in the defrosting chamber are defrosted.

[0008] Preferably, a plastic cable tray is vertically installed in the middle of the fan panel, and a base plate is installed below the power distribution board. Multiple fans are assembled on the surface of the panel, which can effectively reduce the load on the machine during long-term high-load operation.

[0009] Preferably, a connecting piece is installed on one side surface of the base plate, a lower support is fitted on the surface of the connecting piece, a slot is installed on the other side of the lower support, and two power supplies are added to the surface of the bottom power distribution board to reduce the pressure on a single power supply.

[0010] Preferably, a compressor is mounted above the lower support, a gas delivery pipe is installed at the end of the compressor, and a hot gas expansion valve is installed at the connection of the gas delivery pipe.

[0011] Preferably, the frame is equipped with left and right crossbeams on both sides, a column is installed at the front end of the support plate, a filter screen is installed in the middle of the column, a defrosting chamber is installed on one side of the filter screen, a front panel is installed below the filter screen, and two power supplies are added to the bottom power distribution board surface, which reduces the load on the power supply during long-term operation, improves safety, and extends the life of the device.

[0012] The advantages of this utility model are:

[0013] This utility model provides an air source heat pump defrosting device. To address the problem that during prolonged high-load operation, relying solely on a single fan for defrosting is slow, inefficient, and puts significant strain on the power supply, posing a safety hazard, this invention adds a multi-fan mounting panel to the back of the evaporator. By assembling multiple fans on the panel's surface, the load on the machine is effectively reduced during prolonged high-load operation, improving defrosting efficiency. Furthermore, adding two power supplies to the bottom electrical distribution board reduces the strain on a single power supply, enhances defrosting performance, reduces the power supply load during extended operation, improves safety, and extends the device's lifespan. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 An isometric side view of the entire structure;

[0016] Figure 2 An isometric side view of the internal structure;

[0017] Figure 3 This is an isometric side view of the supporting structure;

[0018] Figure 4 This is an isometric side view of the defrosting structure;

[0019] Figure 5 This is an isometric side view of the bottom structure;

[0020] In the diagram: 1. Outer sealing plate; 2. Filter screen; 3. Front panel; 4. Frame; 5. Left and right crossbeams; 6. Base plate; 7. Column; 8. Defrosting chamber; 9. Fixed beam; 10. Fan panel; 11. Thermal insulation fixed beam; 12. Plastic cable tray; 13. Limiting plate; 14. Fan; 15. Support plate; 16. Power supply; 17. Distribution board; 18. Fixed rail; 19. Lower support; 20. Hot gas expansion valve; 21. Gas delivery pipe; 22. Thermal insulation layer; 23. Evaporator; 24. Heating base; 25. Compressor; 26. Slot; 27. Connecting piece. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5 As shown, an air source heat pump defrosting device includes a frame 4. An outer sealing plate 1 is mounted on the outside of the frame 4. A support plate 15 is mounted in the middle of the frame 4. A fixing beam 9 is installed on the surface of the support plate 15. An evaporator 23 is mounted on one side of the fixing beam 9. A heating base 24 is installed at the bottom of the evaporator 23. A heat insulation fixing beam 11 is installed on the back of the evaporator 23. A heat insulation layer 22 is mounted in the middle of the heat insulation fixing beam 11. A fan panel 10 is installed on the other side of the evaporator 23. Multiple sets of circular slots are opened on the surface of the fan panel 10, and fans 14 are installed in the slots. A power distribution board 17 is installed below the support plate 15. A power supply 16 is installed on the surface of the power distribution board 17. A fixing rail 18 is installed on the surface of the power distribution board 17. A limit piece 13 is mounted at the front end of the fixing beam 9.

[0023] In current technology, defrosting devices typically operate via a power supply 16 mounted on the bottom. The power supply 16 drives the compressor 25, which in turn drives the defrosting chamber 8. The evaporator 23 then assists in defrosting the refrigeration components within the defrosting chamber 8. However, during prolonged high-load operation, relying solely on a single fan 14 results in slow defrosting efficiency and puts significant stress on the power supply 16, posing a safety hazard. Therefore, to address these issues, an air-source heat pump defrosting device is proposed. In this device, the power supply 16 at the bottom drives the air compressor located below, which outputs gas through the gas delivery pipe 21 and then through the insulation layer 22 to the evaporator 23, completing the basic defrosting process.

[0024] Furthermore, a plastic cable tray 12 is vertically installed in the middle of the fan panel 10, a base plate 6 is installed below the power distribution board 17, a connecting piece 27 is installed on one side of the base plate 6, a lower support 19 is fitted on the surface of the connecting piece 27, a slot 26 is installed on the other side of the lower support 19, a compressor 25 is fitted above the lower support 19, a gas delivery pipe 21 is installed at the end of the compressor 25, a hot gas expansion valve 20 is fitted at the connection of the gas delivery pipe 21, left and right crossbeams 5 are installed on both sides of the frame 4, a column 7 is installed at the front end of the support plate 15, a filter screen 2 is installed in the middle of the column 7, a defrosting chamber 8 is fitted on one side of the filter screen 2, and a front panel 3 is installed below the filter screen 2.

[0025] During operation, when defrosting, the heated gas is transported by the heating base 24 installed below the evaporator 23 through multiple fans 14 installed on the other side of the evaporator 23 and output to the defrosting chamber 8 on the surface of the cover. The defrosting operation of the air source heat pump is completed in conjunction with the filter screen 2 installed on the surface of the frame 4.

[0026] Working principle: In current technology, defrosting devices on the market typically operate via a power supply 16 installed at the bottom. The power supply 16 drives the compressor 25, which in turn drives the defrosting chamber 8. The evaporator 23 works in conjunction to defrost the refrigeration components within the defrosting chamber 8, thus completing the defrosting operation. However, during prolonged high-load operation, relying solely on a single fan 14 for defrosting is slow and inefficient, and it also puts significant stress on the power supply 16 at the bottom, posing a certain safety hazard. Therefore, to address these issues, an air-source heat pump is proposed. The defrosting device operates by using the bottom power supply 16 to power the air compressor installed below. The air compressor outputs gas through the gas delivery pipe 21 and is then transported to the interior of the evaporator 23 through the insulation layer 22, completing the basic transmission work for defrosting. During defrosting, the heated gas is transported by the heating base 24 installed below the evaporator 23 through multiple fans 14 installed on the other side of the evaporator 23. The gas is then output to the defrosting chamber 8 on the surface of the casing and works in conjunction with the filter screen 2 installed on the surface of the frame 4 to complete the overall defrosting operation of the air source heat pump.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An air source heat pump defrosting device, characterized in that: The device includes a frame (4), an outer sealing plate (1) is mounted on the outside of the frame (4), a support plate (15) is mounted in the middle of the frame (4), a fixing beam (9) is mounted on the surface of the support plate (15), an evaporator (23) is mounted on one side of the fixing beam (9), a heating base (24) is mounted on the bottom of the evaporator (23), a heat insulation fixing beam (11) is mounted on the back of the evaporator (23), a heat insulation layer (22) is mounted in the middle of the heat insulation fixing beam (11), a fan panel (10) is mounted on the other side of the evaporator (23), a fan panel (10) is opened on the surface of the fan panel (10), a fan (14) is mounted in the slot, and a power distribution board (17) is mounted below the support plate (15), and a power supply (16) is mounted on the surface of the power distribution board (17).

2. The air source heat pump defrosting device according to claim 1, characterized in that: The surface of the power distribution board (17) is equipped with a fixed rail (18), and the front end of the fixed beam (9) is fitted with a limit piece (13).

3. The air source heat pump defrosting device according to claim 1, characterized in that: A plastic cable tray (12) is vertically installed in the middle of the fan panel (10), and a base plate (6) is installed below the power distribution board (17).

4. The air source heat pump defrosting device according to claim 3, characterized in that: A connecting piece (27) is installed on one side surface of the base plate (6), a lower support (19) is fitted on the surface of the connecting piece (27), and a slot (26) is installed on the other side of the lower support (19).

5. The air source heat pump defrosting device according to claim 4, characterized in that: A compressor (25) is mounted above the lower support (19), and a gas delivery pipe (21) is installed at the end of the compressor (25). A hot gas expansion valve (20) is installed at the connection of the gas delivery pipe (21).

6. The air source heat pump defrosting device according to claim 1, characterized in that: The frame (4) is equipped with left and right crossbeams (5) on both sides, and a column (7) is installed at the front end of the support plate (15). A filter screen (2) is installed in the middle of the column (7). A defrosting chamber (8) is assembled on one side of the filter screen (2). A front panel (3) is installed below the filter screen (2).

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