Efficient cooling device of refrigerating unit

Abstract

The invention relates to the technical field of heat dissipation devices, and discloses a refrigerating unit efficient heat dissipation device which comprises a shell, the two opposite sides of the shell are each of an open structure, four rolling wheels arranged in a rectangular shape are evenly and rotationally installed between the inner walls of the two opposite sides of the shell, and the outer surfaces of the four rolling wheels are sleeved with two transmission belts; and a plurality of cooling fins are evenly and fixedly installed between the outer surfaces of the two transmission belts, a corrugated pipe is fixedly installed on the inner wall, close to the opening in one side, of the shell, and communicating pipes communicating with each other are fixedly installed between the openings in the two ends of the corrugated pipe. According to the invention, the plurality of radiating fins rotate circularly, so that a thermal boundary layer on the surfaces of the radiating fins can be broken continuously, heat can be transferred to the radiating fins more quickly, the thermal resistance in the heat conduction process is effectively reduced, the efficiency of transferring the heat to the radiating fins is improved, and the radiating speed is increased.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation devices, and in particular to a high-efficiency heat dissipation device for a refrigeration unit. Background Art

[0002] A refrigeration unit is a refrigeration device, which consists of a refrigeration compressor, a condenser, a fan, a unit casing, etc. When the fan is working, it draws cold air from the outside, and the cold air enters the unit casing. The heat of the air in the unit is transferred to the cold air, that is, the unit is cooled by heat convection.

[0003] An existing multi-blade refrigeration unit with high efficiency heat dissipation (Announcement No.: CN214199397U) has at least the following disadvantages: the above patent enables the device to achieve the function of high efficiency heat dissipation through the equipment shell, water inlet pipe, heat dissipation fins, installation frame, water outlet pipe, wind energy bin, annular heat dissipation copper pipe, fan, connecting pipe, annular pipe, air outlet nozzle, fixed pipe and auxiliary pipe; since the heat dissipation fins of the above patent are fixedly arranged, when the heat dissipation fins are stationary, the air around the surface will form a thermal boundary layer due to the temperature difference, resulting in reduced heat transfer efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a high-efficiency heat dissipation device for a refrigeration unit.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A high-efficiency heat dissipation device for a refrigeration unit comprises an outer shell, wherein both opposite sides of the outer shell are open structures, four rollers arranged in a rectangular shape are evenly rotatably installed between the inner walls on the opposite sides of the outer shell, two transmission belts are sleeved on the outer surfaces of the four rollers, a plurality of heat dissipation fins are evenly fixedly installed between the outer surfaces of the two transmission belts, a corrugated tube is fixedly installed on the inner wall of the outer shell close to one of the openings, a connecting pipe that is connected to each other is fixedly installed between the openings at both ends of the corrugated tube, a liquid storage tank, a water pump and a cover shell that are connected to the interior of the connecting pipe are installed in sequence from top to bottom on the outer surface of the connecting pipe, a filtering mechanism is installed inside the liquid storage tank, and a driving mechanism that drives one of the rollers located at the bottom to rotate is installed inside the cover shell.

[0006] As a further solution of the present invention, the driving mechanism includes an impeller rotatably installed inside the cover shell, and the rotation centers of the impeller and one of the rollers located at the bottom are fixedly installed with a first pulley through a rotating shaft, and the outer surfaces of the two first pulleys are sleeved with a first belt.

[0007] As a further solution of the present invention, the filtering mechanism includes two supporting rollers rotatably installed inside the liquid storage tank, the outer surfaces of the two supporting rollers are sleeved with filter mesh belts, a refrigerator is fixedly installed on the bottom wall of the liquid storage tank, a collection assembly is installed inside the liquid storage tank, and a driving assembly is installed between one of the supporting rollers and the impeller.

[0008] As a further solution of the present invention, the aggregate assembly includes a rectangular opening extending through one side of the liquid storage tank, a collecting box is slidably mounted on the inner wall of the rectangular opening, a plurality of filter mesh holes are provided through the surface of the collecting box, the top end of the collecting box extending into one side of the liquid storage tank abuts against the lower surface of the filter mesh belt, and the side of the filter mesh belt away from the collecting box abuts against the inner wall of the liquid storage tank.

[0009] As a further solution of the present invention, a sealing ring is fixedly installed on the outer surface of the collection box and the rectangular opening, and a latch for locking the collection box is installed on the outer surface of the liquid storage tank.

[0010] As a further solution of the present invention, two ventilation holes are formed through the top of the shell, and a ventilation mechanism is installed inside the shell near the ventilation holes. The ventilation mechanism includes a fixing plate fixedly installed on the inner wall of the shell, an air guide tube is fixedly installed on the outer surface of the fixing plate, a ventilation fan blade is rotatably installed inside the air guide tube, and a transmission assembly is installed between the ventilation fan blade and the transmission belt.

[0011] As a further solution of the present invention, the transmission assembly includes a friction wheel rotatably mounted on the upper surface of a fixed plate, the rotation center of the friction wheel and the ventilation fan blades are fixedly mounted with a second pulley through a rotating shaft, the outer surfaces of the two second pulleys are sleeved with a second belt, and the outer periphery of the friction wheel is against the side of the transmission belt.

[0012] As a further solution of the present invention, the driving assembly includes a third pulley fixedly mounted on one of the supporting rollers and the rotation center of the impeller, and the outer surfaces of the two third pulleys are sleeved with a third belt.

[0013] As a further solution of the present invention, a plurality of guide pillars are evenly and fixedly installed on the outer surface of the transmission belt close to the outer shell, and a contoured closed-loop guide groove is provided on the inner wall of the outer shell close to the transmission belt. The guide pillars are slidably installed on the inner wall of the contoured closed-loop guide groove, and the contoured closed-loop guide groove is a concave structure near the two rollers located at the bottom.

[0014] As a further solution of the present invention, dustproof nets are fixedly installed at both side openings and the vents of the shell.

[0015] The beneficial effects of the present invention are: 1. When the coolant is pumped into the housing, the flowing coolant will impact the blades of the impeller, so that the impeller can rotate in the housing, and the rotating impeller drives the corresponding roller to rotate through the first pulley and the first belt, so that the roller can drive the transmission belt to move, so that the multiple heat dissipation fins installed on the outer surface of the transmission belt can move accordingly. By allowing the multiple heat dissipation fins to circulate, the thermal boundary layer on the surface of the heat dissipation fins can be continuously broken, so that the heat can be transferred to the heat dissipation fins more quickly, effectively reducing the thermal resistance in the heat conduction process, increasing the efficiency of heat transfer to the heat dissipation fins, thereby improving the heat dissipation speed; and the multiple circulating heat dissipation fins can take away the hot air around the heat source, help evenly distribute the heat generated when the refrigerator is working, avoid the heat concentration in a certain local area, and make the system temperature more balanced; 2. When the transmission belt moves, the friction wheel against its side will rotate accordingly, so that the friction wheel drives the ventilation blades to rotate through the second pulley and the second belt, so that the ventilation blades discharge the air inside the shell from the inside to the outside, increase the air flow speed inside the shell, so that the heat on the side of the shell close to the refrigerator can be discharged faster, and the other side of the shell takes in air, so that the cold air from the outside can be cooled and dissipated when it flows through the heat dissipation fins, so that the cooled heat dissipation fins can participate in the next heat transfer operation; 3. When the coolant in the bellows flows back to the liquid storage tank through the connecting pipe, the coolant will fall onto the filter belt, so that the filter belt will filter the coolant, remove solid impurities and sediments in the coolant, and reduce the impact of these substances on the fluidity of the coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front structural schematic diagram of a high-efficiency heat dissipation device for a refrigeration unit proposed by the present invention; Figure 2 This is a rear structural schematic diagram of a high-efficiency heat dissipation device for a refrigeration unit proposed by the present invention; Figure 3 A schematic diagram of the structure of a transmission belt of a high-efficiency heat dissipation device for a refrigeration unit proposed by the present invention; Figure 4 A schematic diagram of the bellows structure of a high-efficiency heat dissipation device for a refrigeration unit proposed by the present invention; Figure 5 This is a schematic diagram of the top cross-sectional structure of a shell of a high-efficiency heat dissipation device for a refrigeration unit proposed by the present invention; Figure 6 for Figure 3 A magnified view of the structure at center; Figure 7 for Figure 4 A magnified view of the structure at B in the middle; Figure 8 for Figure 5Enlarged view of the structure at point C in the middle.

[0017] In the figure: 1. outer shell; 2. roller; 3. transmission belt; 4. heat dissipation fin; 5. guide column; 6. contoured closed-loop guide groove; 7. bellows; 8. connecting pipe; 9. liquid storage tank; 10. water pump; 11. cover; 12. impeller; 13. first pulley; 14. first belt; 15. fixing plate; 16. air guide tube; 17. ventilation fan blade; 18. friction wheel; 19. second pulley; 20. second belt; 21. refrigerator; 22. support roller; 23. filter belt; 24. collection box; 25. third pulley; 26. third belt; 27. dust net; 28. vent. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] See attached Figure 1 -Attached Figure 8 , a high-efficiency heat dissipation device for a refrigerating unit, comprising a shell 1, wherein both opposite sides of the shell 1 are open structures, four rollers 2 arranged in a rectangular shape are evenly rotated and installed between the inner walls of the opposite sides of the shell 1, two transmission belts 3 are sleeved on the outer surfaces of the four rollers 2, and a plurality of heat dissipation fins 4 are evenly fixedly installed between the outer surfaces of the two transmission belts 3, a corrugated pipe 7 is fixedly installed on the inner wall of the shell 1 close to one of the openings on one side, and a connecting pipe 8 that is connected to each other is fixedly installed between the openings at both ends of the corrugated pipe 7, and a liquid storage tank 9, a water pump 10 and a cover shell 11 that are connected to the inside of the connecting pipe 8 are sequentially installed from top to bottom on the outer surface of the connecting pipe 8, a filtering mechanism is installed inside the liquid storage tank 9, and a driving mechanism for driving one of the rollers 2 located at the bottom to rotate is installed inside the cover shell 11, and the driving mechanism includes an impeller 12 rotatably installed inside the cover shell 11, and the rotation centers of the impeller 12 and one of the rollers 2 located at the bottom are fixedly installed with a first pulley 13 through a rotating shaft, and the outer surfaces of the two first pulleys 13 are sleeved with a first belt 14.

[0021] When the coolant is pumped into the housing 11, the flowing coolant will impact the blades of the impeller 12, so that the impeller 12 can rotate in the housing 11, and the rotating impeller 12 drives the corresponding roller 2 to rotate through the first pulley 13 and the first belt 14, so that the roller 2 can drive the transmission belt 3 to move, so that the multiple heat dissipation fins 4 installed on the outer surface of the transmission belt 3 can move accordingly. By allowing the multiple heat dissipation fins 4 to circulate, the thermal boundary layer on the surface of the heat dissipation fins 4 can be continuously broken, so that heat can be transferred to the heat dissipation fins 4 more quickly, effectively reducing the thermal resistance in the heat conduction process, and increasing the efficiency of heat transfer to the heat dissipation fins 4, thereby improving the heat dissipation speed; and the multiple circulating heat dissipation fins 4 can take away the hot air around the heat source, help evenly distribute the heat generated when the refrigerator is working, avoid heat concentration in a certain local area, and make the system temperature more balanced.

[0022] In this embodiment, the filtering mechanism includes two support rollers 22 rotatably mounted inside the liquid storage tank 9, the outer surfaces of the two support rollers 22 are sleeved with a filter mesh belt 23, the bottom wall of the liquid storage tank 9 is fixedly mounted with a refrigerator 21, and a collection assembly is installed inside the liquid storage tank 9, a driving assembly is installed between one of the support rollers 22 and the impeller 12, the collection assembly includes a rectangular opening extending through one side of the liquid storage tank 9, a collection box 24 is slidably mounted on the inner wall of the rectangular opening, a plurality of filter mesh holes are provided on the surface of the collection box 24, and the collection box 24 extends into the top of one side of the liquid storage tank 9 and is connected to the filter mesh. The lower surface of the filter belt 23 is abutted against each other, and the side of the filter belt 23 away from the collecting box 24 is abutted against the inner wall of the liquid storage tank 9. The outer surface of the collecting box 24 and the rectangular opening are connected to each other with a sealing ring fixedly installed, and the sealing ring can be used to seal the connection around the collecting box 24 and the rectangular opening to prevent coolant from overflowing; the outer surface of the liquid storage tank 9 is installed with a pin for locking the collecting box 24, and the driving assembly includes a third pulley 25 fixedly installed on one of the support rollers 22 and the rotation center of the impeller 12, and the outer surfaces of the two third pulleys 25 are provided with a third belt 26.

[0023] While the impeller 12 rotates, the support roller 22 will also be driven to rotate through the third pulley 25 and the third belt 26, so that the filter belt 23 sleeved on the outer surface of the support roller 22 can move toward the collecting box 24. When the coolant in the bellows 7 flows back to the liquid storage tank 9 through the connecting pipe 8, the coolant will fall on the filter belt 23, so that the filter belt 23 filters the coolant, removes solid impurities and sediments in the coolant, and reduces the influence of these substances on the fluidity of the coolant; as the filter belt 23 continues to move, the impurities on the surface of the filter belt 23 will fall into the collecting box 24 for collection, and the lower surface of the filter belt 23 is against the top of one side of the collecting box 24, so that the side of the collecting box 24 can scrape off the impurities adhering to the surface of the filter belt 23, so as to better collect the impurities, so that the collecting box 24 can be taken out later for centralized treatment of the collected impurities.

[0024] In this embodiment, two ventilation holes 28 are formed through the top of the shell 1, and a ventilation mechanism is installed inside the shell 1 near the ventilation holes 28. The ventilation mechanism includes a fixed plate 15 fixedly installed on the inner wall of the shell 1, and an air guide tube 16 is fixedly installed on the outer surface of the fixed plate 15. A ventilation fan blade 17 is rotatably installed inside the air guide tube 16. A transmission assembly is installed between the ventilation fan blade 17 and the transmission belt 3. The transmission assembly includes a friction wheel 18 rotatably installed on the upper surface of the fixed plate 15, and the rotation centers of the friction wheel 18 and the ventilation fan blade 17 are fixedly installed with a second pulley 19 through a rotating shaft. The outer surfaces of the two second pulleys 19 are sleeved with a second belt 20, and the outer periphery of the friction wheel 18 is against the side of the transmission belt 3.

[0025] When the transmission belt 3 moves, the friction wheel 18 against its side will rotate accordingly, so that the friction wheel 18 drives the ventilation blades 17 to rotate through the second pulley 19 and the second belt 20, so that the ventilation blades 17 discharge the air inside the shell 1 from the inside to the outside, increase the air flow speed inside the shell 1, and make the heat on the side of the shell 1 close to the refrigerator be discharged faster, while the other side of the shell 1 takes in air, so that the cold air from the outside can be cooled and dissipated when flowing through the heat sink 4, so that the cooled heat sink 4 can participate in the next heat transfer operation.

[0026] In this embodiment, a plurality of guide posts 5 are evenly and fixedly installed on the outer surface of the transmission belt 3 near the outer shell 1, and a contoured closed-loop guide groove 6 is provided on the inner wall of the outer shell 1 near the transmission belt 3. The guide posts 5 and the inner wall of the contoured closed-loop guide groove 6 are slidably installed, and the contoured closed-loop guide groove 6 is a concave structure near the two rollers 2 at the bottom. The position of the transmission belt 3 is limited by the contoured closed-loop guide groove 6 and the plurality of guide posts 5, and the contoured closed-loop guide groove 6 is a concave structure near the two rollers 2 at the bottom, so that the transmission belt 3 can generate a sufficient wrap angle with the two rollers 2 at the bottom to perform stable transmission operations.

[0027] In this embodiment, dustproof nets 27 are fixedly installed at both side openings of the housing 1 and the ventilation opening 28 to prevent external dust from entering the interior of the housing 1 .

[0028] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when in use, the side of the device equipped with the bellows 7 is attached to the outside of the refrigerator, so that the heat dissipation fins 4 on the side of the refrigerator inside the shell 1 adsorb the heat generated when the refrigerator is working, so that the heat can be quickly discharged through the heat dissipation fins 4, thereby improving the heat dissipation effect of the refrigerator; The water pump 10 pumps the coolant in the liquid storage tank 9 into the bellows 7 through the connecting pipe 8, and flows back to the liquid storage tank 9 from the other end of the bellows 7, so that the coolant can circulate in the bellows 7, so that the coolant can take away the heat generated by the refrigerator when it is working, and cool the coolant through the refrigerator 21 installed in the liquid storage tank 9, so that the cooled coolant flows into the bellows 7 to participate in the cooling operation, thereby achieving the heat dissipation effect on the refrigerator; When the coolant is pumped into the housing 11, the flowing coolant will impact the blades of the impeller 12, so that the impeller 12 can rotate in the housing 11, and the rotating impeller 12 drives the corresponding roller 2 to rotate through the first pulley 13 and the first belt 14, so that the roller 2 can drive the transmission belt 3 to move, so that the multiple heat dissipation fins 4 installed on the outer surface of the transmission belt 3 can move accordingly. By allowing the multiple heat dissipation fins 4 to circulate, the thermal boundary layer on the surface of the heat dissipation fins 4 can be continuously broken, so that the heat can be transferred to the heat dissipation fins 4 more quickly, effectively reducing the thermal resistance in the heat conduction process, increasing the efficiency of heat transfer to the heat dissipation fins 4, and thus improving the heat dissipation speed; and the multiple circulating heat dissipation fins 4 can take away the hot air around the heat source, help evenly distribute the heat generated when the refrigerator is working, avoid the heat from being concentrated in a certain local area, and make the system temperature more balanced; When the transmission belt 3 moves, the friction wheel 18 against its side will rotate accordingly, so that the friction wheel 18 drives the ventilation blades 17 to rotate through the second pulley 19 and the second belt 20, so that the ventilation blades 17 discharge the air inside the shell 1 from the inside to the outside, increase the air flow speed inside the shell 1, so that the heat on the side of the shell 1 close to the refrigerator can be discharged faster, and the other side of the shell 1 takes in air, so that the cold air from the outside can be cooled and dissipated when it flows through the heat dissipation fins 4, so that the cooled heat dissipation fins 4 can participate in the next heat transfer operation; When the impeller 12 rotates, the support roller 22 is also driven to rotate through the third pulley 25 and the third belt 26, so that the filter belt 23 sleeved on the outer surface of the support roller 22 can move toward the collecting box 24. When the coolant in the bellows 7 flows back to the liquid storage tank 9 through the connecting pipe 8, the coolant will fall on the filter belt 23, so that the filter belt 23 filters the coolant, removes solid impurities and sediments in the coolant, and reduces the influence of these substances on the fluidity of the coolant; As the filter mesh belt 23 continues to move, impurities on the surface of the filter mesh belt 23 will fall into the collection box 24 for collection, and the lower surface of the filter mesh belt 23 will abut against the top of one side of the collection box 24, so that the side of the collection box 24 can scrape off the impurities adhering to the surface of the filter mesh belt 23, so as to better collect the impurities, so that the collection box 24 can be taken out later for centralized treatment of the collected impurities.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-efficiency heat dissipation device for a refrigeration unit, comprising a housing (1), characterized in that: The two opposite sides of the shell (1) are both open structures. Four rollers (2) arranged in a rectangular shape are evenly rotatably mounted between the inner walls of the two opposite sides of the shell (1). Two transmission belts (3) are sleeved on the outer surfaces of the four rollers (2). A plurality of heat dissipation fins (4) are evenly fixedly mounted between the outer surfaces of the two transmission belts (3). A bellows (7) is fixedly mounted on the inner wall of the shell (1) close to one of the openings. A connecting pipe (8) that is in communication with each other is fixedly mounted between the openings at both ends of the bellows (7). A liquid storage tank (9), a water pump (10) and a cover (11) that are connected to the inside of the connecting pipe (8) are sequentially mounted on the outer surface of the connecting pipe (8) from top to bottom. A filtering mechanism is mounted inside the liquid storage tank (9). A driving mechanism that drives one of the rollers (2) located at the bottom to rotate is mounted inside the cover (11).

2. A high-efficiency heat dissipation device for a refrigeration unit according to claim 1, characterized in that: The driving mechanism comprises an impeller (12) rotatably mounted inside the housing (11); the impeller (12) and one of the rollers (2) at the bottom are both fixedly mounted with a first pulley (13) via a rotating shaft at their rotation centers; and the outer surfaces of the two first pulleys (13) are sleeved with a first belt (14).

3. A high-efficiency heat dissipation device for a refrigerating unit according to claim 2, characterized in that: The filtering mechanism comprises two supporting rollers (22) rotatably mounted inside a liquid storage tank (9), the outer surfaces of the two supporting rollers (22) being sleeved with a filter mesh belt (23), a refrigerator (21) being fixedly mounted on the bottom wall of the liquid storage tank (9), a material collection assembly being mounted inside the liquid storage tank (9), and a driving assembly being mounted between one of the supporting rollers (22) and the impeller (12).

4. A high-efficiency heat dissipation device for a refrigerating unit according to claim 3, characterized in that: The aggregate assembly comprises a rectangular opening extending through one side of a liquid storage tank (9); a collecting box (24) is slidably mounted on the inner wall of the rectangular opening; a plurality of filter mesh holes are provided on the surface of the collecting box (24); the top end of the collecting box (24) extending into one side of the liquid storage tank (9) abuts against the lower surface of the filter mesh belt (23); and the side of the filter mesh belt (23) away from the collecting box (24) abuts against the inner wall of the liquid storage tank (9).

5. A high-efficiency heat dissipation device for a refrigerating unit according to claim 4, characterized in that: A sealing ring is fixedly mounted on the outer surface of the collection box (24) and the rectangular opening that are connected to each other, and a latch for locking the collection box (24) is mounted on the outer surface of the liquid storage tank (9).

6. The high-efficiency heat dissipation device for a refrigerating unit according to claim 1, characterized in that: Two ventilation holes (28) are formed through the top of the shell (1), and a ventilation mechanism is installed inside the shell (1) near the ventilation holes (28). The ventilation mechanism comprises a fixing plate (15) fixedly installed on the inner wall of the shell (1), an air guide tube (16) fixedly installed on the outer surface of the fixing plate (15), a ventilation fan blade (17) rotatably installed inside the air guide tube (16), and a transmission component is installed between the ventilation fan blade (17) and the transmission belt (3).

7. A high-efficiency heat dissipation device for a refrigerating unit according to claim 6, characterized in that: The transmission assembly comprises a friction wheel (18) rotatably mounted on the upper surface of a fixed plate (15); a second pulley (19) is fixedly mounted on the rotation center of the friction wheel (18) and the ventilation fan blade (17) via a rotating shaft; a second belt (20) is sleeved on the outer surfaces of the two second pulleys (19); and the outer periphery of the friction wheel (18) abuts against the side of the transmission belt (3).

8. The high-efficiency heat dissipation device for a refrigerating unit according to claim 3, characterized in that: The driving assembly comprises a third pulley (25) fixedly mounted on one of the support rollers (22) and the rotation center of the impeller (12), respectively, and a third belt (26) is sleeved on the outer surfaces of the two third pulleys (25).

9. A high-efficiency heat dissipation device for a refrigerating unit according to claim 8, characterized in that: A plurality of guide posts (5) are evenly and fixedly mounted on the outer surface of the transmission belt (3) on one side close to the outer shell (1); a contoured closed-loop guide groove (6) is provided on the inner wall of the outer shell (1) close to the transmission belt (3); the guide posts (5) are slidably mounted on the inner wall of the contoured closed-loop guide groove (6); and the contoured closed-loop guide groove (6) is a concave structure near the two rollers (2) at the bottom.

10. The high-efficiency heat dissipation device for a refrigerating unit according to claim 9, characterized in that: Dust-proof nets (27) are fixedly mounted on both side openings of the housing (1) and the ventilation opening (28).

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