Heat exchanger for refrigeration air conditioner

By using a motor-driven gear transmission system and an automatic brush device, the problem of low cleaning efficiency of finned tube heat exchangers in dusty environments has been solved, achieving automated cleaning and simplifying the maintenance of large equipment.

CN224094655UActive Publication Date: 2026-04-07FOSHAN HUIZE HEAT EXCHANGE EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing finned tube heat exchangers are prone to dust accumulation in dusty environments, leading to increased thermal resistance and reduced airflow. Existing cleaning methods are time-consuming and labor-intensive, especially for large equipment where comprehensive cleaning is inefficient.

Method used

A cleaning device including a motor-driven gear transmission system and an automatic brush is designed. The brush automatically cleans dust from the fin surface through belt transmission, and the device maintenance is simplified through a detachable fixing mechanism.

Benefits of technology

It improves cleaning efficiency, reduces the workload of maintenance personnel, simplifies the cleaning operation of large equipment, and reduces labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of refrigeration air conditioners, and discloses a heat exchanger for a refrigeration air conditioner, which comprises a device body and a belt, the left and right ends of the front side of the outer wall of the device body are fixedly connected with fixed blocks I, the right side of the outer wall of the fixed block I on the right side is provided with a motor, and the output end of the motor is fixedly connected with a gear. A first rotating shaft is rotationally connected to the lower middle portion of the left side of the outer wall of the first fixing block, gears are rotationally connected to the outer wall of the first rotating shaft, the two gears are in transmission connection through a belt, and a second fixing block is fixedly connected to the outer wall of the belt. According to the dust removal device, the output end of the motor drives the gears to rotate, the two gears rotate on the first rotating shaft outside the first fixing block through transmission of the belt, the second fixing block is fixed to the outer wall of the belt and fixed to the right end of the outer wall of the brush, and the brush can be moved to automatically clean dust attached to the device body by starting rotation of the motor; and the ash removal efficiency is improved, and the workload of maintenance personnel is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of refrigeration and air conditioning technology, and in particular to a heat exchanger for refrigeration and air conditioning. Background Technology

[0002] A heat exchanger, also known as a heat exchanger, is a device used to transfer heat between two or more fluids at different temperatures. It has a wide range of applications in energy, chemical industry, HVAC and many other fields.

[0003] Heat exchangers for refrigeration and air conditioning are key components in refrigeration and air conditioning systems. They are mainly used to achieve heat exchange between refrigerant and media such as air or water to achieve the purpose of cooling or heating. As a key component in refrigeration and air conditioning systems, they undertake the important task of heat exchange. During cooling, the evaporator acts as a heat exchanger, allowing the low-temperature, low-pressure refrigerant to absorb heat from the indoor air to achieve indoor cooling. The condenser, on the other hand, releases the heat from the high-temperature, high-pressure refrigerant to the outdoor environment. During heating, the situation is reversed: the outdoor heat exchanger absorbs heat from the outside, while the indoor heat exchanger releases heat into the room.

[0004] Existing finned tube heat exchangers increase the heat dissipation area, allowing heat to be dissipated more quickly to the surrounding environment, thus cooling or condensing the fluid inside the tubes. However, in dusty environments, dust easily accumulates on the fin surface of finned tube heat exchangers. This increases the thermal resistance on the air side, reduces heat exchange efficiency, and dust also clogs the channels between the fins, further affecting airflow and causing a decline in the performance of the refrigeration and air conditioning system. Current technology involves periodically wiping the visible dust and debris on the heat exchanger surface with a soft brush or cloth during daily use. Areas prone to dust accumulation, such as the edges and corners of the fins, can be wiped more thoroughly to reduce dust buildup and decrease the frequency and difficulty of deep cleaning. However, for large finned tube heat exchangers or equipment with a large number of fins, a comprehensive simple wipe requires a lot of time and manpower. Operators need to wipe each part individually, resulting in low work efficiency, especially when frequent cleaning is required, which increases the workload of maintenance personnel. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a heat exchanger for refrigeration and air conditioning, aiming to improve the problem that simple wiping in the prior art requires a lot of time and manpower.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat exchanger for refrigeration and air conditioning, comprising a body and a belt. A fixing block is fixedly connected to the left and right ends of the front side of the outer wall of the body. A motor is installed on the right side of the outer wall of the fixing block, and a gear is fixedly connected to the output end of the motor. A rotating shaft is rotatably connected to the lower left side of the outer wall of the fixing block, and a gear is rotatably connected to the outer wall of the rotating shaft. The two gears are connected via a belt drive. A fixing block is fixedly connected to the outer wall of the belt, and a brush is fixedly connected to the left side of the outer wall of the fixing block. A slide rail is fixedly connected to each adjacent side of the two fixing blocks, and a slider is slidably connected to the inner wall of the slide rail. The slider is fixedly connected to the left and right sides of the outer wall of the brush. A back plate is provided on the rear side of the outer wall of the body, and a fixing mechanism is provided at the left and right ends of the middle front side of the outer wall of the back plate. The fixing mechanism is used to fix the body.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes a housing, which is fixedly connected to the left and right ends of the middle front side of the outer wall of the back plate. Each of the two housings has a second sliding groove on its front side. A first locking block is slidably connected to the inner wall of the second sliding groove. The first locking block is fixedly connected to the left and right ends of the middle rear side of the outer wall of the device. A spring is fixedly connected to the left and right ends of the middle rear side of the inner wall of the housing. A cylinder is fixedly connected to the front side of the outer wall of the spring. A second locking block is provided on the outer wall of the first locking block. A second rotating shaft is rotatably connected to the middle of the outer wall of the second locking block. The second rotating shaft is fixedly connected to the middle of the inner bottom wall of the housing. A square column is provided on the front side of the outer wall of the second locking block. Each of the two housings has a first sliding groove on its front side. The square column is slidably connected to the first sliding groove. A button is fixedly connected to the front side of the outer wall of the square column.

[0009] As a further description of the above technical solution:

[0010] The bottom of the motor is fixedly connected to a bracket, which is fixedly connected to the outer wall of the fixing block.

[0011] As a further description of the above technical solution:

[0012] A dustproof net is provided on the rear side of the outer wall of the device, and screw holes are provided at the four corners of the front side of the outer wall of the dustproof net.

[0013] As a further description of the above technical solution:

[0014] Bolts are threaded at the four corners of the front side of the outer wall of the device, and the bolts are threaded into the screw holes.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the fixed block is fixedly connected to handles on the left and right sides.

[0017] As a further description of the above technical solution:

[0018] The top wall of the device is fitted with a protective plate.

[0019] As a further description of the above technical solution:

[0020] An anti-slip pad is installed on the front side of the outer wall of the button.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the output end of the motor drives the gear to rotate, and the two gears rotate on the shaft outside the fixed block one through the transmission of the belt. The outer wall of the belt is fixed with the fixed block two, which is fixed to the right end of the outer wall of the brush. The adjacent sides of the two fixed blocks one are equipped with slide rails, and the sliders on the left and right sides of the brush slide on the slide rails. By starting the rotation of the motor, the brush can be moved to automatically clean the dust attached to the device body, which improves the dust removal efficiency and reduces the workload of maintenance personnel.

[0023] 2. In this utility model, pressing the button causes the square column to move inward in the sliding groove of the housing. The square column presses the second locking block inward, causing it to rotate on the second rotating shaft. When the second locking block rotates, the second locking block will release the first locking block. The cylinder on the spring inside the housing will push the first locking block outward, causing the first locking block to separate from the housing. When the end is finished, the spring returns the cylinder, causing the second locking block to return to its original position. Through the above operations, the device can be easily removed. Attached Figure Description

[0024] Figure 1 This is a perspective view of a heat exchanger for refrigeration and air conditioning proposed in this utility model;

[0025] Figure 2 This is a front view of a heat exchanger for refrigeration and air conditioning proposed in this utility model;

[0026] Figure 3 This is a partial exploded view of the structure of a heat exchanger for refrigeration and air conditioning proposed in this utility model;

[0027] Figure 4 This is a partial structural diagram of a heat exchanger for refrigeration and air conditioning proposed in this utility model;

[0028] Figure 5 This is a cross-sectional view of the fixing mechanism of a heat exchanger for refrigeration and air conditioning proposed in this utility model.

[0029] Legend:

[0030] 1. Body; 2. Fixing mechanism; 201. Shell; 202. Slide groove one; 203. Slide groove two; 204. Locking block one; 205. Spring; 206. Cylinder; 207. Locking block two; 208. Square column; 209. Button; 210. Rotating shaft two; 3. Fixing block one; 4. Motor; 5. Gear; 6. Rotating shaft one; 7. Belt; 8. Fixing block two; 9. Slide rail; 10. Slider; 11. Bracket; 12. Dustproof net; 13. Screw hole; 14. Bolt; 15. Back plate; 16. Handle; 17. Protective plate; 18. Anti-slip pad; 19. Brush. Detailed Implementation

[0031] 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 protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a heat exchanger for refrigeration and air conditioning, comprising a body 1 and a belt 7. Fixing blocks 3 are fixedly connected to the left and right ends of the front side of the outer wall of the body 1. A motor 4 is installed on the right side of the outer wall of the right-side fixing block 3, and the fixing block 3 is used for fixation. A gear 5 is fixedly connected to the output end of the motor 4, and the motor 4 drives the gear 5 to rotate. A rotating shaft 6 is rotatably connected to the lower left side of the outer wall of the fixing block 3, and a gear 5 is rotatably connected to the outer wall of the rotating shaft 6, which is used to rotate the gear 5. The two gears 5 are connected by a belt 7, which drives the gears 5. A fixing block 8 is fixedly connected to the outer wall of the belt 7, and a fixing block 8 is fixedly connected to the left side of the outer wall of the fixing block 7. A brush 19 is attached, and a second fixing block 8 is used to slide the brush 19. A slide rail 9 is fixedly connected to each adjacent side of the two fixing blocks 3. A slider 10 is slidably connected to the inner wall of the slide rail 9. The slider 10 is fixedly connected to the left and right sides of the outer wall of the brush 19. The slide rail 9 is used to slide the slider 10. A back plate 15 is provided on the rear side of the outer wall of the device 1. A fixing mechanism 2 is provided on the left and right ends of the middle front side of the outer wall of the back plate 15. The fixing mechanism 2 is used to fix the device 1. A bracket 11 is fixedly connected to the bottom of the motor 4. The bracket 11 is used to support the motor 4. The bracket 11 is fixedly connected to the outer wall of the first fixing block 3. A handle 16 is fixedly connected to the left and right sides of the outer wall of the first fixing block 3. The handle 16 is used to remove the device 1.

[0033] Specifically, when dust adheres to the surface of the device 1, the motor 4 is started, and the output end of the motor 4 drives the gear 5 to rotate. The two gears 5 rotate on the shaft 6 outside the fixed block 3 through the transmission of the belt 7. The outer wall of the belt 7 is fixed with the second fixed block 8, which is fixed to the right end of the outer wall of the brush 19. The adjacent side of the two fixed blocks 3 is equipped with a slide rail 9. The sliders 10 on the left and right sides of the brush 19 slide on the slide rail 9. By starting the rotation of the motor 4, the brush 19 can be moved to clean the dust adhering to the device 1. The bracket 11 is used to fix the motor 4 to the right side of the fixed block 3. The handle 16 can easily remove the device 1.

[0034] Reference Figure 1 and Figure 5 The fixing mechanism 2 includes a housing 201, which is fixedly connected to the left and right ends of the front middle of the outer wall of the back plate 15. The housing 201 is fixed to the back plate 15. Each of the two housings 201 has a second sliding groove 203 on its front outer wall. A first locking block 204 is slidably connected to the inner wall of the second sliding groove 203. The second sliding groove 203 is used to slide the first locking block 204. The first locking block 204 is fixedly connected to the left and right ends of the rear middle of the outer wall of the body 1. The first locking block 204 is used to fix the body 1 to the housing 201. Springs 205 are fixedly connected to the left and right ends of the rear inner wall of the housing 201. The springs 205 are used for rebound. A cylinder 206 is fixedly connected to the front outer wall of the spring 205. The cylinder 206 is used to push out the first locking block 204. The outer wall of housing 201 is provided with a second locking block 207. The middle of the outer wall of the second locking block 207 is rotatably connected to a second rotating shaft 210. The second locking block 207 rotates on the outer wall of the second rotating shaft 210. The second rotating shaft 210 is fixedly connected to the middle of the inner bottom wall of housing 201. A square post 208 is provided on the front side of the outer wall of the second locking block 207. The square post 208 is used to press down the second locking block 207. The front side of the outer wall of both housings 201 is provided with a first sliding groove 202. The square post 208 is slidably connected to the first sliding groove 202. The square post 208 slides in the first sliding groove 202. A button 209 is fixedly connected to the front side of the outer wall of the square post 208. The button 209 is used to press down the square post 208. An anti-slip pad 18 is installed on the front side of the outer wall of the button 209. The anti-slip pad 18 is used for anti-slip.

[0035] Specifically, pressing button 209 causes the square column 208 to move inward in the slide groove 202 of the housing 201. The square column 208 presses the second locking block 207 inward, causing it to rotate on the second rotating shaft 210. When the second locking block 207 rotates, it will release the first locking block 204. The cylinder 206 on the spring 205 inside the housing 201 will push the first locking block 204 outward, causing the first locking block 204 to separate from the housing 201. When it ends, the spring 205 rebounds the cylinder 206, causing the second locking block 207 to return to its original position. Through the above operations, the device body 1 can be easily removed. The anti-slip pad 18 can prevent fingers from slipping when pressing button 209.

[0036] Reference Figure 3 A dustproof net 12 is provided on the rear side of the outer wall of the device 1. The dustproof net 12 is used for dust prevention. Screw holes 13 are provided at the four corners of the front side of the outer wall of the dustproof net 12. Bolts 14 are threadedly connected to the four corners of the front side of the outer wall of the device 1. The bolts 14 are threadedly connected to the screw holes 13. The connection between the bolts 14 and the screw holes 13 fixes the dustproof net 12. A protective plate 17 is installed on the top wall of the device 1. The protective plate 17 is used for protection.

[0037] Specifically, the dustproof net 12 can prevent dust from entering the surface of the vessel body 1. The dustproof net 12 can be fixed to the vessel body 1 by connecting the bolts 14 and screw holes 13. The protective plate 17 prevents dust and foreign objects from falling onto the vessel body 1.

[0038] Working principle: When dust adheres to the surface of the device 1, the motor 4 is started. The output end of the motor 4 drives the gear 5 to rotate. The two gears 5 rotate on the shaft 6 outside the fixed block 3 through the transmission of the belt 7. The outer wall of the belt 7 is fixed with the second fixed block 8, which is fixed to the right end of the outer wall of the brush 19. The adjacent side of the two fixed blocks 3 is equipped with a slide rail 9. The sliders 10 on the left and right sides of the brush 19 slide on the slide rail 9. By starting the rotation of the motor 4, the brush 19 can be moved to clean the dust adhering to the device 1.

[0039] Pressing button 209 causes the square column 208 to move inward in the slide groove 202 of the housing 201. The square column 208 presses the second locking block 207 inward, causing it to rotate on the second rotating shaft 210. When the second locking block 207 rotates, it will release the first locking block 204. The cylinder 206 on the spring 205 inside the housing 201 will push the first locking block 204 outward, causing the first locking block 204 to separate from the housing 201. When it ends, the spring 205 rebounds the cylinder 206, causing the second locking block 207 to return to its original position. Through the above operations, the device 1 can be easily removed.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat exchanger for refrigeration and air conditioning, comprising a body (1) and a belt (7), characterized in that: The outer wall of the device (1) is fixedly connected to the left and right ends of the front side of the outer wall of the device (1). A motor (4) is provided on the right side of the outer wall of the fixed block (3). A gear (5) is fixedly connected to the output end of the motor (4). A rotating shaft (6) is rotatably connected to the lower left side of the outer wall of the fixed block (3). A gear (5) is rotatably connected to the outer wall of the rotating shaft (6). The two gears (5) are connected by a belt (7). A fixed block (8) is fixedly connected to the outer wall of the belt (7). A brush (19) is fixedly connected to the left side of the outer wall of the second fixed block (8). A slide rail (9) is fixedly connected to the adjacent side of the two first fixed blocks (3). A slider (10) is slidably connected to the inner wall of the slide rail (9). The slider (10) is fixedly connected to the left and right sides of the outer wall of the brush (19). A back plate (15) is provided on the rear side of the outer wall of the device (1). A fixing mechanism (2) is provided on the left and right ends of the middle front side of the outer wall of the back plate (15). The fixing mechanism (2) is used to fix the device (1).

2. A heat exchanger for refrigeration and air conditioning according to claim 1, characterized in that: The fixing mechanism (2) includes a housing (201), which is fixedly connected to the left and right ends of the middle front side of the outer wall of the back plate (15). A second sliding groove (203) is provided on the front side of the outer wall of both housings (201). A first locking block (204) is slidably connected to the inner wall of the second sliding groove (203). The first locking block (204) is fixedly connected to the left and right ends of the middle rear side of the outer wall of the body (1). A spring (205) is fixedly connected to the left and right ends of the rear side of the inner wall of the housing (201). A cylinder (205) is fixedly connected to the front side of the outer wall of the spring (205). 06), the outer wall of the first card block (204) is provided with the second card block (207), the middle of the outer wall of the second card block (207) is rotatably connected to the second shaft (210), the second shaft (210) is fixedly connected to the middle of the inner bottom wall of the housing (201), the front side of the outer wall of the second card block (207) is provided with the square post (208), the front side of the outer wall of both housings (201) is provided with the first sliding groove (202), the square post (208) is slidably connected to the first sliding groove (202), and the front side of the outer wall of the square post (208) is fixedly connected with the button (209).

3. A heat exchanger for refrigeration and air conditioning according to claim 1, characterized in that: The bottom of the motor (4) is fixedly connected to a bracket (11), which is fixedly connected to the outer wall of the fixing block (3).

4. A heat exchanger for refrigeration and air conditioning according to claim 1, characterized in that: A dustproof net (12) is provided on the rear side of the outer wall of the device (1), and screw holes (13) are provided at the four corners of the front side of the outer wall of the dustproof net (12).

5. A heat exchanger for refrigeration and air conditioning according to claim 4, characterized in that: Bolts (14) are threaded at the four corners of the front side of the outer wall of the device (1), and the bolts (14) are threaded to the screw holes (13).

6. A heat exchanger for refrigeration and air conditioning according to claim 1, characterized in that: The outer wall of the fixed block 1 (3) is fixedly connected with handles (16) on the left and right sides.

7. A heat exchanger for refrigeration and air conditioning according to claim 1, characterized in that: The top wall of the device (1) is fitted with a protective plate (17).

8. A heat exchanger for refrigeration and air conditioning according to claim 2, characterized in that: An anti-slip pad (18) is installed on the front side of the outer wall of the button (209).