An active heat dissipation device for 5G communication base station

Abstract

The present invention relates to the technical field of base station heat dissipation, and discloses an active heat dissipation device for a 5G communication base station, including: an active air inlet box, a disassembly panel is provided on the side wall of the active air inlet box, an air inlet mesh window is provided on the disassembly panel, and an active exhaust mechanism for actively drawing external air into the 5G communication base station is provided inside the active air inlet box. The present invention quickly pulls and releases the dust-proof gauze cloth through the instant release mechanism, and the huge impact force generated can directly act on the ice layer on the air inlet mesh window, effectively breaking the ice layer and restoring ventilation efficiency. This physical deicing method is faster and has lower energy consumption than traditional heating deicing, and automatically triggers the instant release mechanism to work without manual intervention, thereby improving the automation level and efficiency of base station maintenance.

Description

Technical Field

[0001] The present invention relates to the field of base station heat dissipation, and more specifically, to an active heat dissipation device for a 5G communication base station. Background Art

[0002] 5G base stations are the core equipment of 5G networks, providing wireless coverage and realizing wireless signal transmission between wired communication networks and wireless terminals. The architecture and form of base stations directly affect how 5G networks are deployed. Since the higher the frequency, the greater the attenuation during signal propagation, the base station density of 5G networks will be higher. The widespread use of 5G base stations has brought about the problem of heat generation by 5G base stations themselves. When heat accumulates in the base station and causes the internal temperature of the base station to be too high, the normal operation of the base station will be affected.

[0003] An active heat dissipation device is installed on the side wall of the outdoor box-type 5G base station. The fan rotates rapidly under the power drive to generate strong suction force, and the relatively low-temperature and fresh air outside the base station is sucked into the base station through the air inlet (such as the air inlet mesh window) to cool the components inside the base station.

[0004] Under cold rainy conditions, when rainwater contacts the active air inlet box, part of the rainwater will flow back along the surface to the air inlet mesh window and flow downward. If the temperature drops below the freezing point at this time, and the rainwater on the air inlet mesh window has not been completely drained, the residual rainwater will freeze in the mesh. This freezing phenomenon will directly lead to a significant reduction in the mesh diameter of the air inlet mesh window, thereby restricting air circulation, causing a significant reduction in air intake, affecting the efficiency of the cooling system, and may also have an adverse effect on the normal operation of the base station equipment. To this end, we propose an active cooling device for 5G communication base stations. Summary of the invention

[0005] The present invention provides an active heat dissipation device for a communication base station, which solves the technical problem in the related art that ice forms in the mesh, resulting in a significant reduction in the mesh diameter of the air inlet mesh window, thereby restricting air circulation, causing a significant reduction in the air intake volume, and affecting the efficiency of the heat dissipation system. In particular, various application scenarios of 5G technology require high-speed data transmission and high equipment integration, which leads to a significant increase in the power consumption of 5G base stations. Adding an active heat dissipation device can better ensure the long-term operation of the 5G communication base station.

[0006] The present invention provides an active heat dissipation device for a 5G communication base station, comprising: an active air inlet box, a side wall of the active air inlet box is provided with a disassembly panel, an air inlet mesh window is provided on the disassembly panel, and an active air inlet box is provided with an active air extraction mechanism for actively drawing external air into the 5G communication base station;

[0007] The active exhaust mechanism includes an exhaust fan, and the air inlet surface of the exhaust fan is provided with a dust blocking mechanism for preventing large dust particles outside the active air inlet box from being sucked into the 5G communication base station by the exhaust fan. The dust blocking mechanism includes a wind tube frame fixedly connected to the exhaust fan, and the air inlet of the wind tube frame is covered with a circular dust-blocking gauze cloth for blocking large dust particles outside. The center position of the wind tube frame is provided with an instant release mechanism for pulling the center position of the dust-blocking gauze cloth to be concave, and when the air intake volume is less than a predetermined value, the dust-blocking gauze cloth is pulled to be concave and twisted by the instant release mechanism, and then the dust-blocking gauze cloth is instantly released to make it rebound and hit the air inlet mesh window;

[0008] The instant release mechanism comprises a tension cylinder, and four reaction belts fixedly connected to the dust-proof gauze cloth are fixedly arranged on one side of the tension cylinder close to the center of the dust-proof gauze cloth, and a threaded cylinder with threads is rotatably arranged inside the tension cylinder.

[0009] Furthermore, the instant release mechanism also includes a support frame fixedly connected to the wind tube frame, the support frame is rotatably connected to the threaded tube, the threaded tube is rotatably connected to the tension tube through a thread opened on the outer wall, and the centers of the threaded tube, the tension tube and the dust-proof mesh cloth are all located in the same straight line as the center of the exhaust fan.

[0010] Furthermore, an electromagnet is fixedly provided inside the threaded barrel, and a telescopic plate is connected to the side of the electromagnet close to the center of the exhaust fan through a soft wire. The telescopic plate penetrates the side wall of the threaded barrel close to the center of the exhaust fan and forms a telescopic structure with the threaded barrel. A push-and-turn plate is fixedly provided on the side of the exhaust fan close to the telescopic plate, and the telescopic plate is extended by the extension of the telescopic column of the electromagnet and is subjected to the thrust of the rotation of the push-and-turn plate.

[0011] Furthermore, the connection terminal of the electromagnet is connected to a wire, and an elastic film fixed to the inner wall of the wind tube frame is arranged at the end of the wire away from the electromagnet. Two mutually symmetrical conductive sheets 1 are fixedly arranged on the inner upper wall of the elastic film, and the two conductive sheets 1 are in an eight-shaped shape, and a conductive sheet 2 is fixedly arranged on the inner lower wall of the elastic film.

[0012] Furthermore, a plurality of elastic tightening belts are fixedly provided on the inner wall of the dust-blocking gauze cloth, and the plurality of tightening belts are dispersed outward from the center of the dust-blocking gauze cloth, and a plurality of equally distributed hanging rings are hung on the outer periphery of the dust-blocking gauze cloth away from the center of the circle, and a reciprocating cable running through the wind duct frame is fixedly connected to the hanging ring, and a reciprocating ring 1 rotatably connected to the wind duct frame is fixedly provided at one end of the plurality of reciprocating cables away from the hanging ring.

[0013] Furthermore, a reciprocating ring 2 rotatably connected to the wind duct frame is provided on the side of the reciprocating ring 1 away from the reciprocating cable, and the reciprocating ring 2 and the reciprocating ring 1 are both located inside the wind duct frame on the side close to the exhaust fan, and a force transmission plate fixedly connected to the reciprocating ring 1 is provided in the gap between the reciprocating ring 2 and the reciprocating ring 1, and a force-bearing plate fixedly connected to the reciprocating ring 2 is provided on one side of the force transmission plate, and the force-bearing plate and the force transmission plate are staggered.

[0014] Furthermore, a limiting rope groove 1 is provided on the outer ring wall of the reciprocating ring 1, and an elastic band 1 is fixedly arranged inside the limiting rope groove 1; a limiting rope groove 2 is provided on the outer ring wall of the reciprocating ring 2, and an elastic band 2 is fixedly arranged inside the limiting rope groove 2; the ends of the elastic band 1 and the elastic band 2 opposite to the rotation direction of the reciprocating ring 1 are fixedly connected to the wind tube frame; a pull rope that runs through the wind tube frame is fixedly arranged on the side of the reciprocating ring 2 close to the exhaust fan.

[0015] Furthermore, a deceleration plate fixedly connected to the wind tube frame is provided at the end position of the clockwise rotation of the force plate in the gap between the reciprocating ring 1 and the reciprocating ring 2, and a deceleration rubber block is fixedly provided on one side of the deceleration plate close to the reciprocating ring 2.

[0016] Furthermore, the active exhaust mechanism also includes a jet pressure chamber fixedly arranged above one side of the air inlet of the exhaust fan, a guide air pressure plate with an inclined structure fixedly arranged above one side of the air outlet of the exhaust fan, an air guide plate is rotatably arranged on the side of the guide air pressure plate close to the air outlet of the exhaust fan, a magnetic strip fixedly connected to the guide air pressure plate is arranged on one side of the air guide plate, the inner wall of the air guide plate is fixedly connected to a branch of the pull rope, and the jet pressure chamber is backwardly connected to the interior of the air guide plate.

[0017] Furthermore, a bottom row frame aligned with the jet pressure chamber is fixedly provided below one side of the air inlet of the exhaust fan, and the bottom row frame passes through the lower wall of the active air inlet box. A dust exhaust port is opened in the bottom row frame, and the interior of the dust exhaust port is rotatably connected to a closing plate through a torsion spring, and limit plates fixedly connected to the bottom row frame are fixedly provided at both ends of the rotating shaft of the closing plate.

[0018] The beneficial effects of the present invention are:

[0019] The present invention uses an instant release mechanism to quickly pull and release the dust-blocking gauze cloth, and the huge slapping force generated can directly act on the ice layer on the air inlet window, effectively breaking the ice layer and restoring ventilation efficiency. This physical deicing method is faster and has lower energy consumption than traditional heating deicing, and automatically triggers the instant release mechanism to work without manual intervention, thereby improving the automation level and efficiency of base station maintenance;

[0020] This design is not only suitable for base stations in cold areas, but also for other situations where the air inlet is blocked due to environmental factors, such as high humidity and dust, by adjusting the use strategy of dust-proof mesh cloth to effectively deal with it, ensuring that the base station cooling system continues to operate efficiently and avoiding equipment overheating caused by poor air intake, thereby improving the stability and reliability of the entire communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the positional relationship between the exhaust fan and the dust shielding mechanism of the present invention;

[0023] Figure 3 It is a schematic diagram of the concave structure of the dust-proof gauze mesh cloth of the present invention;

[0024] Figure 4 It is a schematic diagram of the partial internal structure of the wind tube frame of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of a reciprocating ring of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the instant release mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the internal structure of the threaded barrel of the present invention;

[0028] Figure 8 It is a schematic diagram of the elastic film structure of the present invention.

[0029] In the figure: 11, active air inlet box; 12, disassembly panel; 13, air inlet mesh window; 2, active exhaust mechanism; 21, exhaust fan; 22, bottom exhaust frame; 23, dust exhaust port; 24, closing plate; 25, limit plate; 26, guide air pressure plate; 27, air guide plate; 28, magnetic strip; 29, jet pressurization chamber; 3, dust blocking mechanism; 31, air cylinder frame; 32, dust blocking gauze cloth; 33, tightening belt; 34, reciprocating cable; 35, hanging ring; 36, reciprocating ring one; 37, reciprocating ring two; 38. Pulling rope; 39. Limiting rope groove one; 301. Elastic band one; 302. Force transmission plate; 303. Speed ​​reduction plate; 304. Speed ​​reduction rubber block; 305. Limiting rope groove two; 306. Elastic band two; 307. Force plate; 4. Instant release mechanism; 41. Tension cylinder; 42. Reaction belt; 43. Threaded cylinder; 44. Electromagnet; 45. Telescopic plate; 46. Push-turn plate; 47. Elastic film; 48. Wire; 49. Conductive sheet one; 401. Conductive sheet two; 402. Support frame. DETAILED DESCRIPTION

[0030] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0031] like Figure 1 As shown, an active heat dissipation device for a 5G communication base station includes: an active air inlet box 11, a disassembly panel 12 is provided on the side wall of the active air inlet box 11, an air inlet mesh window 13 is provided on the disassembly panel 12, and an active air inlet box 11 is provided with an active air extraction mechanism 2 for actively drawing external air into the 5G communication base station;

[0032] like Figure 6 - Figure 8 As shown, the active exhaust mechanism 2 includes an exhaust fan 21, and a dust blocking mechanism 3 is provided on the air inlet surface of the exhaust fan 21, which is used to prevent large particles of dust outside the active air inlet box 11 from being sucked into the 5G communication base station by the exhaust fan 21. The dust blocking mechanism 3 includes a wind tube frame 31 fixedly connected to the exhaust fan 21, and the air inlet of the wind tube frame 31 is covered with a circular dust-blocking gauze 32 for blocking large particles of dust. The center position of the wind tube frame 31 is provided with an instant release mechanism 4 for pulling the center position of the dust-blocking gauze 32 to be concave, which is used to pull the dust-blocking gauze 32 to be concave and twisted through the instant release mechanism 4 when the air intake volume is less than a predetermined value, and then instantly release the dust-blocking gauze 32 to make it rebound and hit the air inlet mesh window 13;

[0033] The instant release mechanism 4 quickly pulls and releases the dust-blocking gauze 32, and the huge impact force generated can directly act on the ice layer on the air inlet window 13, effectively breaking the ice layer and restoring the ventilation efficiency. This physical deicing method is faster and has lower energy consumption than the traditional heating deicing method, and automatically triggers the instant release mechanism 4 to work without manual intervention, thereby improving the automation level and efficiency of base station maintenance;

[0034] This design is not only suitable for base stations in cold areas, but also can effectively deal with other situations where the air inlet is blocked due to environmental factors, such as high humidity and dust, by adjusting the use strategy of the dust-proof mesh cloth 32, ensuring that the base station cooling system continues to operate efficiently and avoiding equipment overheating caused by poor air intake, thereby improving the stability and reliability of the entire communication system.

[0035] The instant release mechanism 4 comprises a tension cylinder 41, and four reaction belts 42 fixedly connected to the dust-blocking gauze cloth 32 are fixedly arranged on one side of the tension cylinder 41 close to the center of the dust-blocking gauze cloth 32, and a threaded cylinder 43 with threads is rotatably arranged inside the tension cylinder 41.

[0036] The instant release mechanism 4 also includes a support frame 402 fixedly connected to the wind tube frame 31, the support frame 402 is rotatably connected to the threaded tube 43, and the threaded tube 43 is rotatably connected to the tension tube 41 through a thread opened on the outer wall. The centers of the threaded tube 43, the tension tube 41 and the dust-proof mesh cloth 32 are all located in the same straight line as the center of the exhaust fan 21.

[0037] An electromagnet 44 is fixedly provided inside the threaded barrel 43, and a telescopic plate 45 is connected to the side of the electromagnet 44 near the center of the exhaust fan 21 through a soft wire. The telescopic plate 45 penetrates the side wall of the threaded barrel 43 near the center of the exhaust fan 21, and forms a telescopic structure with the threaded barrel 43. A push-and-turn plate 46 is fixedly provided on the side of the exhaust fan 21 near the telescopic plate 45. The telescopic plate 45 is pushed out by the extension of the telescopic column of the electromagnet 44, and is subjected to the thrust of the rotation of the push-and-turn plate 46.

[0038] The connection terminal of the electromagnet 44 is connected to a wire 48, and an elastic film 47 fixed to the inner wall of the wind tube frame 31 is provided at one end of the wire 48 away from the electromagnet 44. Two symmetrical conductive sheets 49 are fixed on the inner upper wall of the elastic film 47, and the two conductive sheets 49 are in an eight-shaped shape. A conductive sheet 2 401 is fixed on the inner lower wall of the elastic film 47.

[0039] When rain falls on the active air inlet box 11 on a cold rainy day, part of the rain will drip back onto the air inlet mesh window 13 and flow downward. If the rain does not completely flow away from the air inlet mesh window 13, if the temperature drops to the freezing point, the rain in the mesh of the air inlet mesh window 13 will freeze, thereby reducing the diameter of the air inlet mesh and reducing the air intake volume.

[0040] As the air volume from the mesh of the air inlet window 13 decreases, a negative pressure state is formed in the air duct frame 31, so that when the exhaust fan 21 continues to work, the elastic film 47 bulges under the negative pressure suction. When the elastic film 47 bulges, the two flattened conductive sheets 1 49 swing toward the center at the same time, and the two conductive sheets 1 49 contact the conductive sheet 2 401 at the same time, so that the two conductive sheets 1 49 form a passage under the contact of the conductive sheet 2 401, and the electromagnet 44 is controlled to work. Each time the electromagnet 44 works for two seconds, the telescopic column of the electromagnet 44 pushes out the telescopic plate 45.

[0041] The push-turn plate 46 pushes the telescopic plate 45 to drive the threaded cylinder 43 to rotate as the fan rotates, and the threaded cylinder 43 drives the tension cylinder 41 to rotate along the thread and slide toward the side of the exhaust fan 21, thereby pulling the dust-proof mesh 32 to be recessed through the reaction belt 42 and causing the dust-proof mesh 32 to twist. After the electromagnet 44 works for two seconds, the telescopic plate 45 is instantly pulled back through the telescopic column of the electromagnet 44, and the threaded cylinder 43 stops rotating. At the same time, the elasticity of the four reaction belts 42 pulls the tension cylinder 41 to rotate and slide back to the initial position. This working process is completed in an instant. When the tension cylinder 41 is reset, the dust-proof mesh 32 is subjected to an instantaneous rebound force, so that the dust-proof mesh 32 is backfilled and bulged, which can just hit the mesh holes of the air inlet window 13. The hitting force can shatter the ice layer to ensure the ventilation effect.

[0042] The above process is also applicable to the case where the dust-blocking gauze cloth 32 is covered with a large amount of dust, and during the process in which the dust-blocking gauze cloth 32 is sunken and rebounds, the dust blocked on the dust-blocking gauze cloth 32 can also be shaken off.

[0043] like Figure 3 - Figure 5 As shown, a plurality of elastic tightening belts 33 are fixedly provided on the inner wall of the dust-blocking mesh cloth 32, and the plurality of tightening belts 33 are dispersed outward from the center of the dust-blocking mesh cloth 32, and a plurality of equally distributed hanging rings 35 are hung on the outer periphery of the dust-blocking mesh cloth 32 away from the center of the circle, and a reciprocating cable 34 passing through the wind duct frame 31 is fixedly connected to the hanging ring 35, and a reciprocating ring 36 rotatably connected to the wind duct frame 31 is fixedly provided at one end of the plurality of reciprocating cables 34 away from the hanging ring 35.

[0044] A reciprocating ring 2 37 rotatably connected to the wind tube frame 31 is provided on the side of the reciprocating ring 1 36 away from the reciprocating cable 34. The reciprocating ring 2 37 and the reciprocating ring 1 36 are both located inside the wind tube frame 31 on the side close to the exhaust fan 21. A force transmission plate 302 fixedly connected to the reciprocating ring 1 36 is provided in the gap between the reciprocating ring 2 37 and the reciprocating ring 1 36. A force bearing plate 307 fixedly connected to the reciprocating ring 2 37 is provided on one side of the force transmission plate 302, and the force bearing plate 307 and the force transmission plate 302 are staggeredly distributed.

[0045] A limit rope groove 1 39 is provided on the outer ring wall of the reciprocating ring 1 36, and an elastic band 1 301 is fixedly arranged inside the limit rope groove 1 39. A limit rope groove 2 305 is provided on the outer ring wall of the reciprocating ring 2 37, and an elastic band 2 306 is fixedly arranged inside the limit rope groove 2 305. The ends of the elastic band 1 301 and the elastic band 2 306 opposite to the rotation direction of the reciprocating ring 1 36 are fixedly connected to the wind tube frame 31. A pull rope 38 that runs through the wind tube frame 31 is fixedly arranged on the side of the reciprocating ring 2 37 close to the exhaust fan 21.

[0046] A deceleration plate 303 fixedly connected to the wind tube frame 31 is provided at the end position of the clockwise rotation of the force plate 307 in the gap between the reciprocating ring 1 36 and the reciprocating ring 2 37 , and a deceleration rubber block 304 is fixedly provided on one side of the deceleration plate 303 close to the reciprocating ring 2 37 .

[0047] When the dust-proof gauze cloth 32 is sunken each time, the dust-proof gauze cloth 32 pulls the plurality of reciprocating cables 34 at the same time, and the plurality of reciprocating cables 34 are pulled out at the same time, pulling the reciprocating ring 1 36 to rotate clockwise, and at the same time the elastic band 1 301 is stretched, and the reciprocating ring 1 36 rotates clockwise to drive the force transmission plate 302 to rotate, and the force transmission plate 302 pushes the force plate 307 to make the reciprocating ring 2 37 rotate clockwise at the same time, and the elastic band 2 306 is stretched, and the reciprocating ring 2 37 rotates clockwise to pull the pull plate rope 38;

[0048] When the dust-proof mesh cloth 32 is reset instantly, the rebound force of the elastic band 1 301 drives the reciprocating ring 1 36 to rotate counterclockwise for reset. At this time, the force-bearing plate 307 loses the thrust of the force-transmitting plate 302, and the rebound force of the elastic band 2 306 drives the reciprocating ring 2 37 to rotate counterclockwise for reset. The reciprocating ring 2 37 is squeezed by the deceleration rubber block 304 to increase the friction of the reciprocating ring 2 37, thereby slowing down the reset speed of the reciprocating ring 2 37.

[0049] like Figure 1 - Figure 2 As shown, the active exhaust mechanism 2 also includes a jet compression chamber 29 fixedly arranged above the air inlet side of the exhaust fan 21, a guide air pressure plate 26 with an inclined structure fixedly arranged above the air outlet side of the exhaust fan 21, and an air guide plate 27 is rotatably arranged on the guide air pressure plate 26 close to the air outlet side of the exhaust fan 21, a magnetic strip 28 fixedly connected to the guide air pressure plate 26 is arranged on one side of the air guide plate 27, the inner wall of the air guide plate 27 is fixedly connected to a branch of the pull plate rope 38, and the jet compression chamber 29 is backwardly connected to the inside of the air guide plate 27.

[0050] A bottom row frame 22 aligned with the jet pressurized chamber 29 is fixedly provided below one side of the air inlet of the exhaust fan 21, and the bottom row frame 22 passes through the lower wall of the active air inlet box 11. A dust exhaust port 23 is opened in the bottom row frame 22. The interior of the dust exhaust port 23 is rotatably connected to a closing plate 24 through a torsion spring. Limiting plates 25 fixedly connected to the bottom row frame 22 are fixedly provided at both ends of the rotating shaft of the closing plate 24.

[0051] When the reciprocating ring 237 rotates clockwise to pull the pull plate rope 38, the pull plate rope 38 simultaneously pulls the multiple air guide plates 27 away from the adsorption of the magnetic strip 28, so that the air inlet in the guide air pressure plate 26 is opened. At this time, a large amount of wind is blown into the guide air pressure plate 26, and then sprayed downward by the jet pressure chamber 29. Because the air outlet of the jet pressure chamber 29 is narrow, the flow rate and impact force of the air outlet will increase. The downward wind force is greater than the suction force entering the wind tube frame 31. Therefore, in the process of the dust-blocking mesh cloth 32 from being sunken to bulging, the dust shaken off will be blown to the dust exhaust port 23 by the downward wind and then discharged from the active air inlet box 11;

[0052] And the reciprocating ring 2 37 has a slow reset time. Even if the dust-proof mesh cloth 32 has been reset, the air guide plate 27 will still be in an open state for a period of time, continuously blowing air downward. When the downward blowing stops, the closing plate 24 will quickly close due to the downward blowing force of the torsion spring.

[0053] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. An active heat dissipation device for a communication base station, comprising: An active air inlet box (11), wherein a disassembly panel (12) is provided on a side wall of the active air inlet box (11), and an air inlet mesh window (13) is provided on the disassembly panel (12), and is characterized in that an active air inlet mechanism (2) for actively drawing external air into the communication base station is provided inside the active air inlet box (11); The active air extraction mechanism (2) comprises an exhaust fan (21), the air inlet surface of the exhaust fan (21) is provided with a dust blocking mechanism (3) for blocking large dust particles outside the active air inlet box (11) from being sucked into the 5G communication base station by the exhaust fan (21), the dust blocking mechanism (3) comprises a wind tube frame (31) fixedly connected to the exhaust fan (21), the air inlet of the wind tube frame (31) is covered with a circular dust blocking gauze cloth (32) for blocking large dust particles outside, and the center position of the wind tube frame (31) is provided with an instant release mechanism (4) for pulling the dust blocking gauze cloth (32) to make the center position concave, and when the air intake volume is less than a predetermined value, the instant release mechanism (4) is used to pull the dust blocking gauze cloth (32) to make it concave and twist, and then instantly release the dust blocking gauze cloth (32) to make it rebound and hit the air inlet mesh window (13); The instant release mechanism (4) comprises a tension cylinder (41), and four reaction force belts (42) fixedly connected to the dust-blocking gauze cloth (32) are fixedly arranged on one side of the tension cylinder (41) close to the center of the dust-blocking gauze cloth (32), and a threaded cylinder (43) with threads is rotatably arranged inside the tension cylinder (41); The instant release mechanism (4) further comprises a support frame (402) fixedly connected to the wind tube frame (31); the support frame (402) is rotatably connected to the threaded tube (43); the threaded tube (43) is rotatably connected to the tension tube (41) via a thread provided on the outer wall; the centers of the threaded tube (43), the tension tube (41) and the dust-proof gauze cloth (32) are all located on the same straight line as the center of the exhaust fan (21); An electromagnet (44) is fixedly arranged inside the threaded barrel (43); a telescopic plate (45) is connected to the side of the electromagnet (44) near the center of the exhaust fan (21) via a flexible wire; the telescopic plate (45) penetrates the side wall of the threaded barrel (43) near the center of the exhaust fan (21) and forms a telescopic structure with the threaded barrel (43); a push-rotating plate (46) is fixedly arranged on the side of the exhaust fan (21) near the telescopic plate (45); the telescopic plate (45) is pushed outward by the extension of the telescopic column of the electromagnet (44), and is subjected to the thrust of the rotation of the push-rotating plate (46); The connection terminal of the electromagnet (44) is connected to a wire (48); an end of the wire (48) away from the electromagnet (44) is provided with an elastic film (47) fixed to the inner wall of the wind tube frame (31); two mutually symmetrical conductive sheets (49) are fixedly provided on the inner upper wall of the elastic film (47); and the two conductive sheets (49) are in an eight-shaped shape; and a conductive sheet (401) is fixedly provided on the inner lower wall of the elastic film (47); A plurality of elastic tightening belts (33) are fixedly provided on the inner wall of the dust-blocking gauze cloth (32), and the plurality of tightening belts (33) are dispersed outward from the center of the dust-blocking gauze cloth (32), and a plurality of equally spaced hanging rings (35) are hung on the outer periphery of the dust-blocking gauze cloth (32) away from the center of the circle, and a reciprocating cable (34) penetrating the wind tube frame (31) is fixedly connected to the hanging ring (35), and a reciprocating ring (36) rotatably connected to the wind tube frame (31) is fixedly provided at one end of the plurality of reciprocating cables (34) away from the hanging ring (35).

2. The active heat dissipation device for a communication base station according to claim 1, characterized in that: A reciprocating ring 2 (37) rotatably connected to the wind tube frame (31) is arranged on the side of the reciprocating ring 1 (36) away from the reciprocating cable (34); the reciprocating ring 2 (37) and the reciprocating ring 1 (36) are both located inside the wind tube frame (31) on the side close to the exhaust fan (21); a force transmission plate (302) fixedly connected to the reciprocating ring 1 (36) is arranged in the gap between the reciprocating ring 2 (37) and the reciprocating ring 1 (36); a force bearing plate (307) fixedly connected to the reciprocating ring 2 (37) is arranged on one side of the force transmission plate (302); and the force bearing plate (307) and the force transmission plate (302) are arranged in an alternating manner.

3. The active heat dissipation device for a communication base station according to claim 2, characterized in that: The outer ring wall of the reciprocating ring 1 (36) is provided with a limit rope groove 1 (39), and an elastic band 1 (301) is fixedly arranged inside the limit rope groove 1 (39). The outer ring wall of the reciprocating ring 2 (37) is provided with a limit rope groove 2 (305), and an elastic band 2 (306) is fixedly arranged inside the limit rope groove 2 (305). The ends of the elastic band 1 (301) and the elastic band 2 (306) opposite to the rotation direction of the reciprocating ring 1 (36) are fixedly connected to the wind tube frame (31). The reciprocating ring 2 (37) is fixedly provided with a pull plate rope (38) that passes through the wind tube frame (31) on the side close to the exhaust fan (21).

4. The active heat dissipation device for a communication base station according to claim 3, characterized in that: A deceleration plate (303) fixedly connected to the wind tube frame (31) is provided at the end position of the clockwise rotation of the force-bearing plate (307) in the gap between the reciprocating ring 1 (36) and the reciprocating ring 2 (37), and a deceleration rubber block (304) is fixedly provided on one side of the deceleration plate (303) close to the reciprocating ring 2 (37).

5. The active heat dissipation device for a communication base station according to claim 3, characterized in that: The active air extraction mechanism (2) further comprises a jet compression chamber (29) fixedly arranged above one side of the air inlet of the exhaust fan (21); a guide air pressure plate (26) with an inclined structure fixedly arranged above one side of the air outlet of the exhaust fan (21); a guide air plate (27) rotatably arranged on the guide air pressure plate (26) close to the air outlet of the exhaust fan (21); a magnetic strip (28) fixedly connected to the guide air pressure plate (26) is arranged on one side of the guide air plate (27); an inner wall of the guide air plate (27) is fixedly connected to a branch of a pull plate rope (38); and the jet compression chamber (29) is backwardly connected to the interior of the guide air plate (27).

6. The active heat dissipation device for a communication base station according to claim 5, characterized in that: A bottom row frame (22) aligned with the jet pressurized chamber (29) is fixedly arranged below one side of the air inlet of the exhaust fan (21), and the bottom row frame (22) penetrates the lower wall of the active air inlet box (11). A dust discharge port (23) is provided in the bottom row frame (22), and a closing plate (24) is rotatably connected to the inside of the dust discharge port (23) via a torsion spring. Limiting plates (25) fixedly connected to the bottom row frame (22) are fixedly arranged at both ends of the rotating shaft of the closing plate (24).

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