Air conditioning unit with a surface cooler assembly
By introducing a filter and cleaning roller into the surface cooler assembly of the air conditioning unit, the problem of dust accumulation is solved, enabling automatic cleaning and convenient disassembly, thus improving the practicality and maintenance efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU BOMING AIR CONDITIONING EQUIP
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-29
AI Technical Summary
In the surface cooler assembly of air conditioning units, dust tends to accumulate on the surface of the heat exchange fins, leading to a decrease in heat exchange efficiency and affecting the practicality of the equipment.
An air cooler assembly for air conditioning units with a filter and a cleaning roller has been designed. The filter filters impurities in the air, and the cleaning roller automatically cleans the filter. Combined with the disassembly assembly, the evaporator coil can be easily disassembled, ensuring convenient cleaning and maintenance of the equipment.
By automatically cleaning impurities from the filter screen, dirt accumulation is reduced, equipment lifespan is extended, heat exchange efficiency and equipment usability are improved, and maintenance workload is reduced.
Smart Images

Figure CN224302204U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning surface cooler processing technology, and in particular to a surface cooler assembly for air conditioning units. Background Technology
[0002] The refrigerant in an air conditioning unit is a heat exchange device, mainly composed of metal tubes and fins. The metal tubes are usually copper tubes, and the fins are usually aluminum fins. When working, the refrigerant flows inside the tubes, while the air to be processed flows over the fins and outside the tubes, thereby cooling the air.
[0003] A search revealed Chinese patent publication number CN220624373U, which discloses a novel air conditioning unit surface cooler, including a base. Support columns are vertically fixed at the four corners of the upper part of the base. A protective frame is bolted between the upper parts of the four support columns, and the protective frame is arranged in a ring. Several connecting plates are horizontally installed on the inner side of the protective frame, and a frame is mounted via a sliding structure. Several heat exchange fins are arranged inside the frame, with the spacing between adjacent heat exchange fins being the same. The number of frames matches the number of connecting plates. The connecting plates are connected to the air conditioning unit surface cooler. The invention relates to the field of air conditioning technology and involves a limiting structure between the frames. This utility model utilizes a column and a square hole to make the positions of the limiting plate and the square hole non-overlapping after the column passes through the square hole. This structure effectively enables a detachable connection of the frame and prevents the heat exchange fins from becoming loose, which could lead to subsequent damage due to vibration and impact. However, during use, when air passes through the surface cooler, dust and impurities in the air tend to accumulate on the surface of the heat exchange fins, resulting in a decrease in the heat exchange efficiency between the heat exchange fins and the air. This reduces the practicality of the surface cooler assembly for air conditioning units and fails to meet the needs of users. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a surface cooler assembly for air conditioning units, aiming to improve the problem that dust easily accumulates on the surface of the heat exchanger in the existing technology of surface cooler assemblies for air conditioning units.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a surface cooler assembly for an air conditioning unit, comprising a housing and a chain. An air inlet is connected to the bottom front side of the housing. Rotating columns are rotatably connected to the left and right sides of the inner front end of the air inlet. A motor is fixedly connected to the right side of the front wall of the air inlet. The output end of the motor passes through the air inlet and is fixedly connected to the right rotating column. Sprockets are fixedly connected to the rear ends of both rotating columns. The two sprockets are connected via the chain drive. A support rod is rotatably connected to the rear side of the chain. A cleaning roller is fixedly connected to the outer side of the support rod. A filter screen is fixedly connected to the upper middle part of the inner side of the air inlet. A flat gear is fixedly connected to the right side of the outer wall of the support rod. A rack is fixedly connected to the inner rear side of the air inlet. The flat gear meshes with the rack. A disassembly assembly is provided inside the housing to facilitate the disassembly and maintenance of the cooling device of the surface cooler assembly for the air conditioning unit.
[0006] Through the above technical solution, the filter screen can filter the air, and the cleaning roller can automatically clean the filter screen, which can reduce dirt accumulation and failure rate, extend the service life of the equipment, improve the practicality of the surface cooler components of the air conditioning unit, and meet the needs of users.
[0007] As a further description of the above technical solution:
[0008] The disassembly assembly includes concave plates. Two concave plates are fixedly connected to the left and right ends of the inner side of the outer casing. A transmission rod is rotatably connected to the upper part of the outer side of each of the two concave plates at opposite ends. A driving bevel gear is fixedly connected to the adjacent ends of each of the two transmission rods. A bidirectional threaded rod is rotatably connected to the inner side of the concave plates. A driven bevel gear is fixedly connected to the upper part of the outer side of the bidirectional threaded rod. The driven bevel gear meshes with the driving bevel gear. Slider blocks are threaded to the upper and lower sides of the outer wall of the driven bevel gear. A connecting rod is rotatably connected to the inner side of each of the two sliders. A support base is rotatably connected to the right end of each of the two connecting rods. A locking block is fixedly connected to the right side of each of the two support bases. A support frame is provided in the inner side of the outer casing. The left and right sides of the support frame engage with corresponding locking blocks. An evaporator coil is fixedly connected to the inner side of the support frame.
[0009] With the above technical solution, the rotation of the transmission rod will eventually drive the locking block to move, and the locking block will disengage from the support frame, making it easy to disassemble the support frame and evaporator coil. The disassembly work is more convenient and reduces the workload of the staff.
[0010] As a further description of the above technical solution:
[0011] A groove is provided in the middle of the inner rear end of the air inlet, and the inside of the groove is slidably connected to the support rod.
[0012] Through the above technical solution, the slide can limit the movement of the support rod, making the movement of the support rod controllable.
[0013] As a further description of the above technical solution:
[0014] A knob is fixedly connected to the far end of each of the two transmission rods, and the inner dimensions of the concave plate match the dimensions of the slider.
[0015] Through the above technical solution, the knob allows the operator to easily rotate the transmission rod, and the inner size of the concave plate matches the size of the slider, enabling the concave plate to limit the slider.
[0016] As a further description of the above technical solution:
[0017] A partition is fixedly connected to the middle of the inner side of the outer shell, and an exchange port is provided on the top front side of the partition.
[0018] The above technical solution uses a partition to divide the interior of the outer casing, so that one part of the interior is used to install the evaporator coil and the other part is used to set up the air duct.
[0019] As a further description of the above technical solution:
[0020] An air outlet is connected to the top rear side of the outer casing, and a fan is fixedly connected inside the air outlet.
[0021] The above technical solution involves installing a fan inside the air outlet to ensure smooth airflow.
[0022] As a further description of the above technical solution:
[0023] The outer casing is provided with a door on the upper and lower middle parts. The top right end of the door is fixedly connected to the front and rear sides with hinges. The door is rotatably connected to the outer casing through the hinges.
[0024] The above technical solution allows the cabinet door to be opened easily using hinges, facilitating daily maintenance and cleaning.
[0025] As a further description of the above technical solution:
[0026] A controller is fixedly connected to the upper front part of the housing, and the controller is electrically connected to the motor and the fan respectively.
[0027] Through the above technical solution, the controller can control the operation of the motor and the fan respectively.
[0028] This utility model has the following beneficial effects:
[0029] 1. In this utility model, the filter screen can filter the air. When a lot of dust accumulates on the filter screen, the motor drives the sprocket to rotate, the chain starts to run, and drives the support rod to move. The support rod drives the spur gear to move. Since the spur gear and the rack mesh with each other, the movement of the spur gear will drive the support rod to rotate. At this time, the cleaning roller on the outside of the support rod will rotate and move, which can clean the impurities on the filter screen, improve the practicality of the surface cooler assembly for air conditioning units, and meet the needs of users.
[0030] 2. In this utility model, the transmission rod drives the active bevel gear to rotate. Since the driven bevel gear meshes with the active bevel gear, the driven bevel gear will drive the bidirectional threaded rod to rotate, and the slider will move accordingly. Through the connecting rod, the support base can be moved. At this time, the locking block will disengage from the support frame, making it easy to disassemble the support frame and evaporator coil. The disassembly work is more convenient and reduces the workload of the staff. Attached Figure Description
[0031] Figure 1 This is a perspective view of a surface cooler assembly for an air conditioning unit according to the present invention.
[0032] Figure 2 This is a cross-sectional view of the air inlet structure of a surface cooler assembly for an air conditioning unit proposed in this utility model.
[0033] Figure 3 for Figure 2 Enlarged view of point A in the image;
[0034] Figure 4 This is a cross-sectional view of the outer shell structure of a surface cooler assembly for an air conditioning unit proposed in this utility model;
[0035] Figure 5 This is a partial structural cross-sectional view of a surface cooler assembly for an air conditioning unit proposed in this utility model.
[0036] Legend:
[0037] 1. Outer casing; 2. Disassembly components; 201. Concave plate; 202. Transmission rod; 203. Driving bevel gear; 204. Bidirectional threaded rod; 205. Driven bevel gear; 206. Slider; 207. Connecting rod; 208. Support base; 209. Locking block; 210. Support frame; 211. Evaporator coil; 3. Air inlet; 4. Rotating column; 5. Motor; 6. Sprocket; 7. Chain; 8. Support rod; 9. Cleaning roller; 10. Filter screen; 11. Flat gear; 12. Rack; 13. Slide groove; 14. Knob; 15. Partition; 16. Exchange port; 17. Air outlet; 18. Fan; 19. Door; 20. Hinge; 21. Controller. Detailed Implementation
[0038] 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.
[0039] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of an air conditioning unit's surface cooler assembly, comprising a housing 1 and a chain 7. An air inlet 3 is connected to the bottom front side of the housing 1. Rotating columns 4 are rotatably connected to the left and right sides of the front end of the air inlet 3. A motor 5 is fixedly connected to the right side of the front wall of the air inlet 3. The output end of the motor 5 passes through the air inlet 3 and is fixedly connected to the right rotating column 4. Sprockets 6 are fixedly connected to the rear ends of both rotating columns 4. The two sprockets 6 are connected via a chain 7. A support rod 8 is rotatably connected to the rear side of the chain 7. A cleaning roller 9 is fixedly connected to the outer side of the support rod 8, a filter screen 10 is fixedly connected to the upper middle part of the inner side of the air inlet 3, a flat gear 11 is fixedly connected to the right side of the outer wall of the support rod 8, a rack 12 is fixedly connected to the rear inner side of the air inlet 3, the flat gear 11 and the rack 12 are meshed and connected, a disassembly assembly 2 is provided inside the outer shell 1, the disassembly assembly 2 is used to facilitate the disassembly and maintenance of the cooling device by the surface cooler assembly of the air conditioning unit, a sliding groove 13 is opened in the middle of the rear end of the inner side of the air inlet 3, and the interior of the sliding groove 13 is slidably connected to the support rod 8;
[0040] Specifically, during the use of the air conditioning unit's surface cooler assembly, air enters through the air inlet 3, and the filter 10 filters the air. At this time, impurities in the air gradually accumulate on the filter 10. When a lot of dust accumulates on the filter 10, the motor 5, through its power output, drives the right-side sprocket 6 to rotate. During the rotation of the sprocket 6, the chain 7 moves accordingly. The movement of the chain 7 drives the support rod 8 to move, and the movement of the support rod 8 in turn drives the spur gear 11 to move. Since the spur gear 11 and the rack 12 mesh with each other, when the spur gear 11 moves, it further causes the support rod 8 to rotate. While the support rod 8 is rotating, it drives the outer cleaning roller 9 to rotate, so that the cleaning roller 9 can effectively clean the impurities on the filter 10. Through the automatic cleaning process, the practicality of the air conditioning unit's surface cooler assembly is greatly improved, ensuring the continuous cleanliness and efficient operation of the filter 10, which can meet the needs of users.
[0041] Reference Figure 1 , Figure 4 and Figure 5The disassembly assembly 2 includes two concave plates 201, which are respectively fixedly connected to the left and right ends of the inner middle of the outer casing 1. A transmission rod 202 is rotatably connected to the upper middle part of the inner, opposite ends of the two concave plates 201. A driving bevel gear 203 is fixedly connected to the adjacent ends of the two transmission rods 202. A bidirectional threaded rod 204 is rotatably connected to the inner middle of the concave plates 201. A driven bevel gear 205 is fixedly connected to the upper middle part of the outer side of the bidirectional threaded rod 204. The driven bevel gear 205 meshes with the driving bevel gear 203. The upper and lower sides of the outer wall of the driven bevel gear 205 are threaded together. The two sliders 206 are connected to a connecting rod 207 rotatably connected to the inner side of each slider 206. The right end of each connecting rod 207 is rotatably connected to a support base 208. The right side of each support base 208 is fixedly connected to a locking block 209. A support frame 210 is provided in the middle of the inner side of the outer shell 1. The left and right sides of the support frame 210 are respectively engaged with the corresponding locking blocks 209. An evaporator coil 211 is fixedly connected to the inner side of the support frame 210. A knob 14 is fixedly connected to the far end of each of the two transmission rods 202. The inner size of the concave plate 201 matches the size of the slider 206.
[0042] Specifically, when the evaporator coil 211 needs to be removed for maintenance, the knob 14 is rotated. When the knob 14 is rotated, the transmission rod 202 will rotate accordingly. The rotation of the transmission rod 202 will further drive the driving bevel gear 203 to start rotating. Since the driven bevel gear 205 is meshed with the driving bevel gear 203, the driven bevel gear 205 will also rotate accordingly, driving the bidirectional threaded rod 204 to start rotating as well. As the bidirectional threaded rod 204 rotates, the slider 206 will move accordingly, and through the connecting rod 207, it can drive the support base 208 to move. The movement of the support base 208 will drive the locking block 209, causing it to disengage from the fixed locking state with the support frame 210. This allows the support frame 210 and the evaporator coil 211 to be easily disassembled, facilitating subsequent maintenance or replacement work and reducing the workload of the staff.
[0043] Reference Figure 1 and Figure 4 A partition 15 is fixedly connected to the middle of the inner side of the outer shell 1. An exchange port 16 is opened on the front top of the partition 15. An air outlet 17 is connected to the rear top of the outer shell 1. A fan 18 is fixedly connected inside the air outlet 17.
[0044] Specifically, the interior of the outer casing 1 is divided by a partition 15, so that one part of the interior of the outer casing 1 is used to install the evaporator coil 211 and the other part is used to set up the air duct. A fan 18 is installed inside the air outlet 17 to ensure smooth air circulation.
[0045] Reference Figure 1The upper and lower sides of the outer shell 1 are provided with a door 19. The top right end of the door 19 is fixedly connected to the front and rear sides with a hinge 20. The door 19 is rotatably connected to the outer shell 1 through the hinge 20. The upper front side of the outer shell 1 is fixedly connected to a controller 21. The controller 21 is electrically connected to the motor 5 and the fan 18 respectively.
[0046] Specifically, hinge 20 can be used to easily open the box door 19, which is convenient for daily maintenance and cleaning, and controller 21 can control the operation of motor 5 and fan 18 respectively. The model of motor 5 is MS201808.
[0047] Working principle: During the use of the air conditioning unit's surface cooler assembly, air enters through the air inlet 3. The filter 10 filters the air, and impurities in the air gradually accumulate on the filter 10. When a lot of dust accumulates on the filter 10, the motor 5 drives the right sprocket 6 to rotate. When the sprocket 6 rotates, it drives the chain 7 to start running. The chain 7 then drives the support rod 8 to move. The movement of the support rod 8 drives the spur gear 11 to move. Since the spur gear 11 meshes with the rack 12, the movement of the spur gear 11 drives the support rod 8 to rotate. At this time, the support rod 8 drives the outer cleaning roller 9 to rotate, which cleans the impurities on the filter 10. This automatic cleaning of the filter 10 reduces the amount of dust entering the air conditioning unit's surface cooler assembly, reduces dirt accumulation and failure rate, and extends the service life of the equipment.
[0048] When the evaporator coil 211 needs to be removed for maintenance, the knob 14 is rotated. The rotation of the knob 14 will drive the transmission rod 202 to rotate, which in turn will drive the drive bevel gear 203 to rotate. Since the driven bevel gear 205 meshes with the drive bevel gear 203, the driven bevel gear 205 will drive the bidirectional threaded rod 204 to rotate. At this time, the slider 206 will move accordingly, and through the connecting rod 207, it can push the support base 208 to move. When the support base 208 moves, it will drive the locking block 209 to move, disengaging from the locking state with the support frame 210. At this time, the support frame 210 and the evaporator coil 211 can be easily disassembled.
[0049] 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 surface cooler assembly for an air conditioning unit, comprising a housing (1) and a chain (7), characterized in that: The bottom front of the outer casing (1) is connected to an air inlet (3). Rotating columns (4) are rotatably connected to the left and right sides of the front end of the air inlet (3). A motor (5) is fixedly connected to the right side of the front wall of the air inlet (3). The output end of the motor (5) passes through the air inlet (3) and is fixedly connected to the right rotating column (4). A sprocket (6) is fixedly connected to the rear end of the two rotating columns (4). The two sprockets (6) are connected by a chain (7). A support rod (8) is rotatably connected to the rear side of the chain (7). A cleaning roller (9) is fixedly connected to the outer side of the support rod (8), a filter screen (10) is fixedly connected to the upper middle part of the inner side of the air inlet (3), a flat gear (11) is fixedly connected to the right side of the outer wall of the support rod (8), a rack (12) is fixedly connected to the rear inner side of the air inlet (3), the flat gear (11) and the rack (12) are meshed together, and a disassembly assembly (2) is provided inside the outer shell (1). The disassembly assembly (2) is used to facilitate the disassembly and maintenance of the cooling device by the surface cooler assembly of the air conditioning unit.
2. The surface cooler assembly for an air conditioning unit according to claim 1, characterized in that: The disassembly assembly (2) includes a concave plate (201). Two concave plates (201) are fixedly connected to the left and right ends of the inner middle of the outer casing (1), respectively. A transmission rod (202) is rotatably connected to the upper middle part of the inner side of each of the two concave plates (201). A drive bevel gear (203) is fixedly connected to the adjacent end of each of the two transmission rods (202). A double-threaded rod (204) is rotatably connected to the middle of the inner side of the concave plate (201). A driven bevel gear (205) is fixedly connected to the upper middle part of the outer side of the double-threaded rod (204). The driven bevel gear (205) and the drive bevel gear (203) are connected to each other. 03) Meshing connection: The driven bevel gear (205) is threaded with sliders (206) on both the upper and lower sides of its outer wall. The inner sides of the two sliders (206) are rotatably connected with connecting rods (207). The right ends of the two connecting rods (207) are rotatably connected with support seats (208). The right sides of the two support seats (208) are fixedly connected with locking blocks (209). The inner middle of the outer shell (1) is provided with a support frame (210). The left and right sides of the support frame (210) are respectively engaged with the corresponding locking blocks (209). The inner side of the support frame (210) is fixedly connected with an evaporator coil (211).
3. The surface cooler assembly for an air conditioning unit according to claim 1, characterized in that: The air inlet (3) has a groove (13) in the middle of the inner rear end, and the inside of the groove (13) is slidably connected to the support rod (8).
4. The surface cooler assembly for an air conditioning unit according to claim 2, characterized in that: A knob (14) is fixedly connected to the far end of each of the two transmission rods (202), and the inner size of the concave plate (201) matches the size of the slider (206).
5. The surface cooler assembly for an air conditioning unit according to claim 1, characterized in that: A partition (15) is fixedly connected to the middle of the inner side of the outer shell (1), and an exchange port (16) is provided on the front top of the partition (15).
6. The surface cooler assembly for an air conditioning unit according to claim 1, characterized in that: The top rear side of the outer casing (1) is connected to an air outlet (17), and a fan (18) is fixedly connected inside the air outlet (17).
7. The surface cooler assembly for an air conditioning unit according to claim 1, characterized in that: The upper and lower sides of the outer shell (1) are provided with a door (19). The top right end of the door (19) is fixedly connected with a hinge (20) on the front and back sides. The door (19) is rotatably connected to the outer shell (1) through the hinge (20).
8. A surface cooler assembly for an air conditioning unit according to claim 6, characterized in that: A controller (21) is fixedly connected to the upper front side of the outer casing (1), and the controller (21) is electrically connected to the motor (5) and the fan (18) respectively.