Air energy heat pump anti-freezing sensor redundancy protection device

Abstract

The utility model discloses an air energy heat pump anti -freezing sensor redundancy protection device relates to air energy heat pump technical field, including the protection box, the inner bottom wall of protection box is installed with the support frame, and the outer surface of support frame is equipped with two installation grooves, and the inside of each installation groove all installs electric push rod, and the output of each electric push rod all installs the connecting plate, and the front of each connecting plate all installs heating module, and each heating module is close to the side surface of connecting plate and all installs two heat conduction sheets, the utility model discloses the heat generated through heat conduction sheet directly to the around of sensing module through heating module, can melt frost layer quickly, can prevent icing again, effectively avoided the problem that frost layer accumulated influenced sensor accuracy, in addition through the pump body inhales external air, and through the nozzle spouts through the air guide pipe of shunt piece, can be targeted to the surface of sensing module and sprays the airflow, and removes the impurity in time, further cleans the sensing module, improves sensing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pumps, and in particular to a redundant protection device for an air source heat pump antifreeze sensor. Background Technology

[0002] An air source heat pump is a highly efficient and energy-saving heating device. It utilizes the low-temperature heat energy in the air and converts it into high-temperature heat energy to meet people's needs for domestic hot water or winter heating. Compared with traditional electric heating and gas heating methods, air source heat pumps have a higher energy efficiency ratio, which can greatly reduce energy consumption and operating costs. The working principle of an air source heat pump is based on the reverse Carnot cycle. It utilizes the physical properties of the refrigerant and achieves heat transfer and conversion through the coordinated work of components such as the compressor, expansion valve, evaporator, and condenser. During operation, the air source heat pump absorbs heat from the air, compresses it through the compressor to raise the temperature of the refrigerant, and then releases the heat into the water through the condenser, thereby achieving the purpose of heating.

[0003] Currently, the antifreeze sensors of most air source heat pumps are prone to temperature measurement accuracy due to dust accumulation or frost cover during long-term use, leading to deviations in temperature monitoring of critical parts of the equipment. Therefore, we propose a redundant protection device for the antifreeze sensor of air source heat pumps to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a redundant protection device for the antifreeze sensor of an air source heat pump, which solves the problem that the temperature measurement accuracy of the existing antifreeze sensor of an air source heat pump is easily affected by dust or frost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a redundant protection device for an air-source heat pump antifreeze sensor, comprising a protective box, a support frame installed on the inner bottom wall of the protective box, two mounting slots on the outer surface of the support frame, an electric push rod installed inside each mounting slot, a connecting plate installed at the output end of each electric push rod, a heating module installed on the front of each connecting plate, two heat-conducting plates installed on the side of each heating module near the connecting plate, and each heat-conducting plate extending through the connecting plate to the outside of the connecting plate on the side away from the heating module, and a sensing module installed on the back of each connecting plate.

[0006] As a further technical solution of this utility model, a flow divider is installed on the outer surface of the support frame, and two air guide pipes are connected to the outer surface of the flow divider. Two nozzles are installed on the outer surface of the support frame, and the end of each air guide pipe away from the flow divider is connected to the outer surface of the nozzle.

[0007] As a further technical solution of this utility model, a pump body is installed on the outer surface of the protective box, the output end of the pump body passes through the protective box and communicates with the outer surface of the diverter block, a controller is installed on the outer surface of the protective box, an air outlet is opened on the upper surface of the protective box, a filter screen is installed inside the air outlet, and an air intake is opened on the outer surface of the protective box.

[0008] As a further technical solution of this utility model, a flow equalization plate is installed inside the support frame, and multiple cooling pipes are connected to the upper surface of the flow equalization plate. Multiple fins are installed on the outer surface of the multiple cooling pipes.

[0009] As a further technical solution of this utility model, the bottom surface of the flow equalization plate is connected to two transmission pipes. One of the transmission pipes, with its end away from the flow equalization plate, passes through the support frame and is connected to a compressor. The other transmission pipe, with its end away from the flow equalization plate, passes through the support frame and is connected to an expansion valve.

[0010] As a further technical solution of this utility model, a heat exchange module is installed on the inner bottom wall of the protective box. A spiral tube is installed inside the heat exchange module. One end of the spiral tube passes through the heat exchange module and is connected to a first connecting pipe. The end of the first connecting pipe away from the spiral tube is connected to the outer surface of the compressor. The other end of the spiral tube passes through the heat exchange module and is connected to a second connecting pipe. The end of the second connecting pipe away from the spiral tube is connected to the outer surface of the expansion valve. A first water outlet pipe is connected to the outer surface of the heat exchange module. The end of the first water outlet pipe away from the heat exchange module passes through the protective box and extends to the outside of the protective box. A second water outlet pipe is connected to the outer surface of the heat exchange module. The end of the second water outlet pipe away from the heat exchange module passes through the protective box and extends to the outside of the protective box.

[0011] As a further technical solution of this utility model, a fixing frame is installed on the inner wall of the protective box, a motor is installed on the front of the fixing frame, and a fan blade is installed at the output end of the motor after passing through the fixing frame.

[0012] This utility model provides a redundant protection device for an air source heat pump antifreeze sensor, which has the following advantages compared with the prior art:

[0013] 1. This design provides an air-source heat pump anti-freeze sensor redundancy protection device. The heat generated by the heating module is directly transferred to the area around the sensing module through the heat-conducting plate. This not only quickly melts the frost layer but also prevents ice formation, effectively avoiding the problem of continuous frost accumulation affecting sensor accuracy. In addition, external air is drawn in by the pump body and sprayed out through the air guide pipe of the splitter block and nozzles. This can be used to spray airflow onto the surface of the sensing module in a targeted manner to remove dust, residual moisture and other impurities in a timely manner, further cleaning the sensing module and improving sensing accuracy. Attached Figure Description

[0014] Figure 1 A front view of a redundancy protection device for an antifreeze sensor in an air source heat pump.

[0015] Figure 2 Rear view of a redundancy protection device for an antifreeze sensor in an air source heat pump;

[0016] Figure 3 A rear cross-sectional view of a redundancy protection device for an air source heat pump antifreeze sensor;

[0017] Figure 4 A top sectional view of a redundancy protection device for an antifreeze sensor in an air source heat pump.

[0018] Figure 5 This is a schematic diagram of the structure of a heat-conducting plate in an air-source heat pump antifreeze sensor redundancy protection device.

[0019] In the diagram: 1. Protective box; 2. Controller; 3. Air outlet; 4. Filter screen; 5. Air inlet; 6. Support frame; 7. Mounting slot; 8. Electric push rod; 9. Connecting plate; 10. Sensing module; 11. Heating module; 12. Heat-conducting plate; 13. Nozzle; 14. Air guide pipe; 15. Flow divider; 16. Pump body; 17. Flow equalization plate; 18. Cooling pipe; 19. Fin; 20. Fixing frame; 21. Motor; 22. Fan blade; 23. Transmission pipe; 24. Compressor; 25. Expansion valve; 26. Heat exchange module; 27. Spiral tube; 28. First connecting pipe; 29. ​​Second connecting pipe; 30. First water outlet pipe; 31. Second water outlet pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5This utility model provides a technical solution for a redundant protection device for an air source heat pump antifreeze sensor: It includes a protective box 1, with a support frame 6 installed on the inner bottom wall of the protective box 1. Two mounting slots 7 are formed on the outer surface of the support frame 6. An electric push rod 8 is installed inside each mounting slot 7. A connecting plate 9 is installed at the output end of each electric push rod 8. A heating module 11 is installed on the front of each connecting plate 9. Two heat-conducting plates 12 are installed on the side of each heating module 11 closest to the connecting plate 9. The side of each heat-conducting plate 12 away from the heating module 11 extends through the connecting plate 9 and outwards. Sensor modules 10 are installed on the back of the connecting plate 9. The sensor modules 10 adopt a dual monitoring structure of main and redundant sensors. The sensor modules 10 are close to the heat pump fins 19, collect temperature data in real time and transmit it to the controller 2. The controller 2 uses the data of the main module as the core and the data of the redundant module as a backup. By comparing the deviation between the two, it can determine whether the sensor is working properly. A diverter block 15 is installed on the outer surface of the support frame 6. The outer surface of the diverter block 15 is connected to two air guide pipes 14. Two nozzles 13 are installed on the outer surface of the support frame 6. The end of each air guide pipe 14 away from the diverter block 15 is connected to the outer surface of the nozzle 13.

[0022] like Figure 1 and Figure 4 As shown, a pump body 16 is installed on the outer surface of the protective box 1. The output end of the pump body 16 passes through the protective box 1 and connects to the outer surface of the diverter block 15. A controller 2 is installed on the outer surface of the protective box 1. An air outlet 3 is opened on the upper surface of the protective box 1. A filter screen 4 is installed inside the air outlet 3. The exhaust gas is discharged after being filtered by the filter screen 4 of the air outlet 3 to avoid secondary pollution. An air intake 5 is opened on the outer surface of the protective box 1. A flow equalization plate 17 is installed inside the support frame 6. Multiple cooling pipes 18 are connected to the upper surface of the flow equalization plate 17. Multiple fins 19 are installed on the outer surface of the multiple cooling pipes 18. The flow equalization plate 17 evenly distributes the refrigerant to the cooling pipes 18 and exchanges heat with the air inside the protective box 1 through the fins 19.

[0023] like Figure 4As shown, the bottom surface of the flow equalization plate 17 is connected to two transmission pipes 23. One end of the transmission pipe 23, away from the flow equalization plate 17, passes through the support frame 6 and connects to the compressor 24. The other end of the transmission pipe 23, away from the flow equalization plate 17, passes through the support frame 6 and connects to the expansion valve 25. The flow equalization plate 17 connects the compressor 24 and the expansion valve 25 through the transmission pipes 23, forming a refrigerant circulation loop. A heat exchange module 26 is installed on the inner bottom wall of the protective box 1. The heat exchange module 26 can be a shell-and-tube heat exchanger. A spiral tube 27 is installed inside the heat exchange module 26. One end of the spiral tube 27 passes through the heat exchange module 26 and connects to the first connecting pipe 28. The end of the first connecting pipe 28 away from the spiral tube 27 is connected to the outer surface of the compressor 24. The other end of the spiral tube 27 passes through the heat exchange module 26 and connects to the compressor 24. A second connecting pipe 29 is connected, with one end of the second connecting pipe 29 away from the spiral tube 27 connected to the outer surface of the expansion valve 25. A first water outlet pipe 30 is connected to the outer surface of the heat exchange module 26, with one end of the first water outlet pipe 30 passing through the protective box 1 and extending to the outside of the protective box 1. A second water outlet pipe 31 is connected to the outer surface of the heat exchange module 26, with one end of the second water outlet pipe 31 passing through the protective box 1 and extending to the outside of the protective box 1. The spiral tube 27 inside the heat exchange module 26 is connected to the heat pump main system through the first connecting pipe 28 and the second connecting pipe 29, transferring the refrigerant heat to the water inside the heat exchange module 26, and then outputting hot water through the first water outlet pipe 30 and the second water outlet pipe 31, realizing the coordinated operation of heating and hot water supply functions and antifreeze protection.

[0024] like Figure 4 As shown, a mounting bracket 20 is installed on the inner wall of the protective box 1. A motor 21 is installed on the front of the mounting bracket 20. The output end of the motor 21 passes through the mounting bracket 20 and is fitted with a fan blade 22. The motor 21 drives the fan blade 22 to rotate, accelerating the air circulation inside the protective box 1 and improving the heat dissipation efficiency.

[0025] The working principle of this utility model is as follows: First, when the surface of the sensing module 10 is frosted, the controller 2 will trigger the heating module 11 to work. Heat is quickly transferred to the surface of the sensing module 10 through the heat conduction plate 12 to melt the frost layer and prevent freezing. Then, the electric push rod 8 separates the sensing module 10 from the fins 19 to prevent them from sticking together. After that, the controller 2 starts the pump body 16 to draw in air from the outside, which is distributed to the two air guide pipes 14 through the diverter block 15. Finally, the airflow is sprayed onto the surface of the sensing module 10 through the nozzle 13 to blow away dust, residual moisture and incompletely melted frost particles.

[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. An air-to-water heat pump freeze sensor redundancy protection device, characterized in that, The system includes a protective box (1), a support frame (6) installed on the inner bottom wall of the protective box (1), two mounting slots (7) opened on the outer surface of the support frame (6), an electric push rod (8) installed inside each mounting slot (7), a connecting plate (9) installed at the output end of each electric push rod (8), a heating module (11) installed on the front of each connecting plate (9), two heat-conducting plates (12) installed on the side of each heating module (11) near the connecting plate (9), and the side of each heat-conducting plate (12) away from the heating module (11) extending through the connecting plate (9) to the outside of the connecting plate (9), and a sensing module (10) installed on the back of each connecting plate (9).

2. An air-to-water heat pump freeze sensor redundancy protection device according to claim 1, characterised in that, A flow divider block (15) is installed on the outer surface of the support frame (6). Two air guide pipes (14) are connected to the outer surface of the flow divider block (15). Two nozzles (13) are installed on the outer surface of the support frame (6). The end of each air guide pipe (14) away from the flow divider block (15) is connected to the outer surface of the nozzle (13).

3. An air-to-water heat pump freeze sensor redundancy protection device according to claim 1, wherein, A pump body (16) is installed on the outer surface of the protective box (1). The output end of the pump body (16) passes through the protective box (1) and communicates with the outer surface of the diverter block (15). A controller (2) is installed on the outer surface of the protective box (1). An air outlet (3) is opened on the upper surface of the protective box (1). A filter screen (4) is installed inside the air outlet (3). An air intake (5) is opened on the outer surface of the protective box (1).

4. An air-to-water heat pump freeze sensor redundancy protection device according to claim 2, characterised in that, The support frame (6) has a flow equalization plate (17) installed inside. The upper surface of the flow equalization plate (17) is connected to a plurality of cooling pipes (18), and the outer surfaces of the plurality of cooling pipes (18) are jointly equipped with a plurality of fins (19).

5. An air-to-water heat pump freeze sensor redundancy protection device according to claim 4, wherein, The bottom surface of the flow equalization plate (17) is connected to two transmission pipes (23). One of the transmission pipes (23) is connected to a compressor (24) after passing through a support frame (6) at one end away from the flow equalization plate (17). The other transmission pipe (23) is connected to an expansion valve (25) after passing through a support frame (6) at one end away from the flow equalization plate (17).

6. An air-to-water heat pump freeze sensor redundancy protection device according to claim 1, characterised in that, A heat exchange module (26) is installed on the inner bottom wall of the protective box (1). A spiral tube (27) is installed inside the heat exchange module (26). One end of the spiral tube (27) passes through the heat exchange module (26) and is connected to a first connecting pipe (28). The end of the first connecting pipe (28) away from the spiral tube (27) is connected to the outer surface of the compressor (24). The other end of the spiral tube (27) passes through the heat exchange module (26) and is connected to a second connecting pipe (29). The second connecting pipe (29) is far from the outer surface of the compressor (24). One end of the spiral tube (27) is connected to the outer surface of the expansion valve (25). The outer surface of the heat exchange module (26) is connected to a first water outlet pipe (30). The end of the first water outlet pipe (30) away from the heat exchange module (26) passes through the protective box (1) and extends to the outside of the protective box (1). The outer surface of the heat exchange module (26) is connected to a second water outlet pipe (31). The end of the second water outlet pipe (31) away from the heat exchange module (26) passes through the protective box (1) and extends to the outside of the protective box (1).

7. An air-to-water heat pump freeze sensor redundancy protection device according to claim 1, wherein, The inner wall of the protective box (1) is fitted with a fixing frame (20), and a motor (21) is mounted on the front of the fixing frame (20). The output end of the motor (21) passes through the fixing frame (20) and is fitted with a fan blade (22).

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