Frostless air source heat pump

Abstract

The utility model relates to the technical field of heat pumps, in particular to a frostless air source heat pump. A frostless air source heat pump comprises an electric control system, a compressor, a refrigerator and an evaporator, the compressor, the refrigerator and the evaporator are communicated with one another through communication assemblies, a plurality of heat dissipation plates are arranged at one end of the evaporator, a shell is arranged on the surface of the evaporator, and an air inlet matched with the heat dissipation plates is formed in one end of the shell. The heat exchange effect of the evaporator is enhanced by increasing the heat exchange area through the heat dissipation plate, and the heat dissipation plate can be cleaned through the cleaning assembly, so that the heat dissipation plate is kept clean and tidy, the heat exchange efficiency is guaranteed, and more serious frosting is avoided. Therefore, the air conditioner has good heating and defrosting effects.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to a frost-free air source heat pump. Background Art

[0002] Air source heat pumps have been widely promoted as an efficient and energy-saving device that can make full use of renewable energy. However, when air source heat pumps operate in a low temperature and high humidity environment, frost is prone to form on the surface of their outdoor evaporators, resulting in a decrease in heating capacity and the need for defrosting.

[0003] After searching, some frost-free air source heat pumps in the prior art use reverse cycle defrosting, which relies on a four-way valve to change the direction of the refrigerant, allowing the refrigerant to flow in reverse, which is equivalent to swapping the functions of the evaporator and the refrigerator, allowing the high-temperature refrigerant discharged from the compressor to enter the evaporator first to melt the frost on the evaporator. However, since the existing frost-free air source heat pumps do not have a cleaning component, when the evaporator surface is dirty, it will affect the heat exchange efficiency of the evaporator, and at the same time cause more severe frosting of the evaporator, affecting the overall heating and defrosting effects. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a frost-free air source heat pump with good heating and defrosting effects.

[0005] In order to solve the above-mentioned problems, the utility model proposes a technical solution: a frost-free air source heat pump, including an electronic control system and a compressor, a refrigerator, and an evaporator interconnected by a connecting component, wherein a plurality of heat plates are provided at one end of the evaporator, a shell is provided on the surface of the evaporator, an air inlet matched with the heat plate is provided at one end of the shell, a cleaning component matched with the heat plate is provided at one end of the evaporator, and the cleaning component includes a first slider slidably connected to the evaporator, a motor that penetrates the first slider and is fixed to the first slider, a screw and a cam driven by the motor, a second slider threadedly connected to the screw, a vertical rod slidably connected to the second slider, a guide rod slidably connected to the vertical rod at one end of the evaporator is rotatably connected, a brush bristles matched with the heat plate is provided at one end of the vertical rod, a second slide groove slidably connected to the second slider is provided inside the vertical rod, and a spring is provided at one end of the first slider.

[0006] As an improvement, a filter is provided inside the air inlet, and an opening matching with the bristles is provided at the bottom end of the shell.

[0007] As an improvement, a first sliding seat is provided at one end of the evaporator, a first sliding groove slidably connected to the first sliding block is provided inside the first sliding seat, and two ends of the spring are respectively against the first sliding block and the first sliding seat.

[0008] As an improvement, a second slide seat is provided at one end of the evaporator, a third slide block is rotatably connected to one end of the screw, and a third slide groove is provided inside the second slide seat and is slidably connected to the third slide block.

[0009] As an improvement, the motor is a double-headed motor, and the motor is electrically connected to a frequency converter located on the surface of the shell.

[0010] As an improvement, one end of the evaporator is rotatably connected to a roller that cooperates with a cam.

[0011] The beneficial effects of the utility model are as follows: the utility model increases the heat exchange area by the heat sink to enhance the heat exchange effect of the evaporator, and can clean the heat sink through the cleaning component, so that the heat sink remains tidy, the heat exchange efficiency is guaranteed, and frosting is avoided to be more serious, so that the utility model has good heating and defrosting effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0013] Figure 2 It is a three-dimensional schematic diagram of the interior of the utility model;

[0014] Figure 3 It is a first stereoscopic schematic diagram of the evaporator of the utility model;

[0015] Figure 4 It is a side view schematic diagram of the evaporator of the utility model;

[0016] Figure 5 It is a second stereoscopic schematic diagram of the evaporator of the utility model;

[0017] Figure 6 This is a front view structural diagram of the evaporator of the utility model;

[0018] Figure 7 It is an enlarged schematic diagram of the A part of the utility model;

[0019] Figure 8 It is an enlarged schematic diagram of point B of the present utility model.

[0020] 1. Shell; 2. Evaporator; 3. Heat sink; 4. Second slider; 5. Screw; 6. Guide rod; 7. Opening; 8. Bristles; 9. Vertical rod; 10. Second slide groove; 11. Cam; 12. Spring; 13. Filter; 14. First slider; 15. Motor; 16. Second slide seat; 17. Third slider; 18. First slide seat; 19. Roller. Implementation

[0021] The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

[0022] A frost-free air source heat pump, including an electric control system and a compressor, a refrigerator, and an evaporator 2 that are interconnected through a connecting component. The connecting component includes a four-way valve, a connecting pipe, and an expansion valve. The structure and position setting relationship of the four-way valve, the connecting pipe, the expansion valve, the compressor, and the refrigerator are conventional means, and no improvement has been made. They are not repeated here, and the drawings do not show them either. A plurality of heat sinks 3 are arranged at one end of the evaporator 2, a shell 1 is arranged on the surface of the evaporator 2, an air inlet matched with the heat sink 3 is arranged at one end of the shell 1, a filter screen 13 is arranged inside the air inlet, and an opening 7 matched with bristles 8 is arranged at the bottom end of the shell 1;

[0023] One end of the evaporator 2 is provided with a cleaning assembly that cooperates with the heat sink 3, and the cleaning assembly includes a first slider 14 that is slidably connected to the evaporator 2, a motor 15 that penetrates the first slider 14 and is fixed to the first slider 14, a screw 5 and a cam 11 that are driven and connected to the motor 15, a second slider 4 that is threadedly connected to the screw 5, and a vertical rod 9 that is slidably connected to the second slider 4. The motor 15 is a double-headed motor 15, and the output shaft of the motor 15 penetrates the first slider 14. The motor 15 is electrically connected to a frequency converter located on the surface of the housing 1. One end of the evaporator 2 is rotatably connected to a guide rod 6 that is slidably connected to the vertical rod 9. One end of the vertical rod 9 is provided with bristles 8 that cooperate with the heat sink 3. The vertical rod 9 A second slide groove 10 slidably connected to the second slider 4 is provided inside, a spring 12 is provided at one end of the first slider 14, and both ends of the spring 12 are respectively against the first slider 14 and the first slide seat 18, a first slide seat 18 is provided at one end of the evaporator 2, and a first slide groove slidably connected to the first slider 14 is provided inside the first slide seat 18, a second slide seat 16 is provided at one end of the evaporator 2, one end of the screw rod 5 is rotatably connected to the third slider 17 through a bearing, and a third slide groove slidably connected to the third slider 17 is provided inside the second slide seat 16, and one end of the evaporator 2 is rotatably connected to the roller 19 matching the cam 11 through a bearing, which can reduce the friction when the cam 11 rotates.

[0024] Working principle: Figure 3 As shown, the heat dissipation plate 3 increases the heat exchange area to enhance the heat exchange effect of the evaporator 2, the motor 15 drives the screw 5 and the cam 11 to rotate, the screw 5 drives the second slider 4 to move horizontally so that the vertical rod 9 moves along the guide rod 6, and the vertical rod 9 drives the bristles 8 on its surface to clean the heat dissipation plate 3;

[0025] At the same time, if Figure 5As shown, the motor 15 drives the cam 11 to rotate, and the spring 12 will push the first slider 14 to move so that it has a tendency to approach the evaporator 2. The first slider 14 drives the motor 15 to move so that the cam 11 is close to the roller 19. As the cam 11 rotates, the motor will intermittently approach and move away from the evaporator 2, thereby driving the screw 5 to move synchronously. The screw 5 drives the vertical rod 9 to swing back and forth around the guide rod 6 through the second slider 4 to continuously adjust the force applied by the bristles 8 to the heat sink 3, so as to achieve a good cleaning effect, keep the heat sink 3 clean, ensure the heat exchange efficiency, and avoid more serious frosting. When defrosting, defrosting is performed through a reverse cycle, and the direction of the refrigerant is changed by the four-way valve to allow the refrigerant to flow in reverse, which is equivalent to exchanging the functions of the evaporator 2 and the refrigerator, allowing the high-temperature refrigerant discharged by the compressor to enter the evaporator 2 first, and melt the frost on the evaporator 2, so that the utility model has good heating and defrosting effects.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A frost-free air source heat pump, comprising an electric control system and a compressor, a refrigerator, and an evaporator (2) interconnected by a connecting component, characterized in that: A plurality of heat sinks (3) are provided at one end of the evaporator (2); a shell (1) is provided on the surface of the evaporator (2); an air inlet matched with the heat sink (3) is provided at one end of the shell (1); a cleaning assembly matched with the heat sink (3) is provided at one end of the evaporator (2); the cleaning assembly comprises a first slider (14) slidably connected to the evaporator (2); a motor (15) penetrating the first slider (14) and fixedly connected to the first slider (14); a screw (5) and a cam (11) connected to the motor (15); a second slider (4) threadedly connected to the screw (5); and a vertical rod (9) slidably connected to the second slider (4); a guide rod (6) slidably connected to the vertical rod (9) is rotatably connected to one end of the evaporator (2); a brush (8) matched with the heat sink (3) is provided at one end of the vertical rod (9); a second slide groove (10) slidably connected to the second slider (4) is provided inside the vertical rod (9); and a spring (12) is provided at one end of the first slider (14).

2. A frost-free air source heat pump according to claim 1, characterized in that: A filter screen (13) is provided inside the air inlet, and an opening (7) matching with the bristles (8) is provided at the bottom end of the shell (1).

3. A frost-free air source heat pump according to claim 1, characterized in that: A first sliding seat (18) is provided at one end of the evaporator (2), a first sliding groove slidably connected to the first sliding block (14) is provided inside the first sliding seat (18), and two ends of the spring (12) are respectively against the first sliding block (14) and the first sliding seat (18).

4. The frost-free air source heat pump according to claim 1, characterized in that: A second sliding seat (16) is provided at one end of the evaporator (2), a third sliding block (17) is rotatably connected to one end of the screw rod (5), and a third sliding groove slidably connected to the third sliding block (17) is provided inside the second sliding seat (16).

5. The frost-free air source heat pump according to claim 1, characterized in that: The motor (15) is a double-headed motor (15), and the motor (15) is electrically connected to a frequency converter located on the surface of the housing (1).

6. The frost-free air source heat pump according to claim 1, characterized in that: One end of the evaporator (2) is rotatably connected to a roller (19) that matches the cam (11).

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