A heat dissipation device for server equipment

Abstract

The present invention relates to the technical field of servers, and specifically to a heat dissipation device for server equipment, including a box body, a box cover is installed on the upper end of the box body through a fixing mechanism, smoke sensors are fixedly connected to the two corners at the rear of the lower end of the box cover, and a heat sink is detachably installed inside the box body. The heat dissipation device of this server not only plays a role in heat dissipation when the server is operating normally, but also can play a role in extinguishing smoke and fire in the first time through the combination of heat dissipation blowing and inert gas release when the server fails and produces smoke and fire, timely and minimizes further damage to the server, and also reduces the difficulty of timely remediation of the server. Through the mutual cooperation of the auxiliary blowing mechanism and the limiting mechanism, the two-way release of the inert gas can be realized, so that the inert gas can be more fully diffused inside the server, further curbing the development of smoke and fire, and the effect of extinguishing smoke and fire can be further guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of servers, and specifically to a heat dissipation device for server equipment. Background Art

[0002] A server is a high-performance computer device, belonging to electronic equipment, which provides various services for other devices (such as client computers, smart phones, tablet computers, etc.) in a network environment. Existing servers are mainly composed of a chassis, a motherboard installed inside the chassis, a CPU (Central Processing Unit), a memory, a hard disk, a power supply, and other components such as a radiator. The radiator inside the server is generally composed of multiple cooling fans to achieve air cooling.

[0003] However, when a server fails, such as a short circuit, overuse, or power failure, it will cause the internal circuits or components of the server to smoke and catch fire. At this time, if the radiator continues to blow air, it will accelerate the air flow speed inside the server. According to the principles of fluid mechanics and combustion science, this will make the oxygen supply around the flame more sufficient, thus intensifying the fire, which will cause more serious damage to the server and increase the difficulty of timely remedial measures for the server. For this reason, we propose a heat dissipation device for server equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide a heat dissipation device for server equipment to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A heat dissipation device for server equipment, including a box body, the upper end of the box body is installed with a box cover through a fixing mechanism, two corners at the rear of the lower end of the box cover are fixedly connected with smoke sensors, the inside of the box body is detachably installed with a heat dissipation seat, the front end of the heat dissipation seat is provided with eight evenly distributed holes, the upper end of the heat dissipation seat is provided with four slots, a connecting shaft is rotatably arranged above the heat dissipation seat through a driving mechanism, the four slots and the eight holes are arranged in a staggered manner, the inner walls of the four slots are fixedly installed with inert gas cylinders, an opening assembly is arranged between the top ends of the four inert gas cylinders and the connecting shaft, the inner walls of the eight holes are installed with cooling fans through support members, auxiliary blowing mechanisms are arranged at the front ends of the plurality of cooling fans, a limiting mechanism is arranged between each pair of upper and lower corresponding auxiliary blowing mechanisms and the connecting shaft, and air guiding assemblies are arranged at the air outlet ends of the four inert gas cylinders;

[0006] The air guiding assembly includes an L-shaped air duct, which is connected to the air outlet end of the inert gas tank. The L-shaped air duct is fixedly inserted into the inner wall of the heat dissipation base. Two nozzles are sequentially connected to the outer wall of the L-shaped air duct from top to bottom, and the two nozzles respectively correspond to the centers of the corresponding two holes.

[0007] Preferably, the fixing mechanism includes two groups of screws and two groups of screw holes. The two groups of screws symmetrically penetrate and are tightened at the two side edges of the upper end of the box cover. The two groups of screw holes are respectively opened at the two sides of the upper end of the box body, and the two groups of screw holes are respectively in threaded cooperation with the two groups of screws.

[0008] Preferably, the driving mechanism includes a mounting seat and a U-shaped plate. The mounting seat is fixedly installed at one side edge of the upper end of the heat dissipation base. A servo motor is fixedly installed at the upper end of the mounting seat. The servo motor is electrically connected to the two smoke sensors. The output shaft end of the servo motor is fixedly connected to one end of a coupling shaft. The U-shaped plate is fixedly connected to the other side edge of the upper end of the heat dissipation base. The other end of the coupling shaft is rotatably connected to the side wall of the U-shaped plate.

[0009] Preferably, the opening assembly includes four worm gears and four worm wheels. The four worm wheels are respectively fixedly connected to the top rotating ends of the four inert gas tanks. The four worm gears are linearly arrayed and fixedly sleeved on the outer wall of the coupling shaft. The four worm gears are respectively meshed with the four worm wheels.

[0010] Preferably, the support member includes two columns, which are symmetrically and fixedly connected to the inner wall of the hole from top to bottom. The corresponding ends of the two columns are respectively fixedly connected to the top and bottom of the outer wall of the radiator fan.

[0011] Preferably, the auxiliary blowing mechanism includes a connecting column, which is fixedly connected to the center of the fan blade of the radiator fan. A collar is fixedly sleeved on the front edge of the outer wall of the connecting column. A plurality of rectangular blocks are fixedly connected to the outer wall of the collar in a circumferential array around its center. The ends of the plurality of rectangular blocks away from the collar are all rotatably connected with blades. A sleeve is slidably sleeved on the rear edge of the outer wall of the connecting column. An annular plate is fixedly sleeved on the rear edge of the outer wall of the sleeve. A second spring is fixedly connected between the annular plate and the fan blade of the radiator fan. The second spring is slidably sleeved on the outer wall of the connecting column. A plurality of struts are rotatably connected to the front edge of the outer wall of the sleeve in a circumferential array around its center. The ends of the plurality of struts away from the sleeve are respectively rotatably connected to the blade surfaces of the plurality of blades.

[0012] Preferably, the limiting mechanism includes a first connecting rod and a second connecting rod located directly below the first connecting rod. The first connecting rod is slidably inserted through the upper inner wall of the heat dissipation base. The lower edge of the outer wall of the first connecting rod is in close contact with the front end of the upper annular plate. The second connecting rod is slidably inserted through the inner wall of the heat dissipation base. The upper and lower ends of the second connecting rod respectively extend into the corresponding upper and lower holes. The lower edge of the outer wall of the second connecting rod is in close contact with the front end of the lower annular plate. A concave rod is fixedly connected between the upper edge of the outer wall of the second connecting rod and the lower edge of the outer wall of the first connecting rod near the lower edge. A linkage assembly is connected between the upper end of the first connecting rod and the connecting shaft.

[0013] Preferably, the linkage assembly includes a gear and a connecting plate. The connecting plate is fixedly connected to the upper end of the first connecting rod. A first spring is fixedly connected between the lower end of the connecting plate and the upper end of the heat dissipation base. The first spring is slidably sleeved on the outer wall of the first connecting rod. A rack is fixedly connected to the front end of the connecting plate. The gear is fixedly sleeved on the outer wall of the connecting shaft corresponding to the rack. The gear and the rack are meshed with each other.

[0014] Preferably, positioning frames are attached to the front and rear ends of the heat dissipation base. Both of the positioning frames are fixedly connected to the inner wall of the box body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. Through the mutual cooperation of the smoke detector, heat dissipation base, holes, slots, drive mechanism, connecting shaft, inert gas tank, opening assembly, heat dissipation fan and air guiding assembly, the heat dissipation device of this server not only plays a role in heat dissipation when the server is running normally, but also when the server fails and smokes and catches fire, through the combination of heat dissipation blowing and inert gas release, it can play a role in extinguishing smoke and fire in the first time, reducing the further damage of the server in a timely and maximum degree, and also reducing the difficulty of timely repair of the server.

[0017] 2. Through the mutual cooperation of the auxiliary blowing mechanism and the limiting mechanism, the bidirectional release of inert gas can be realized, so that the inert gas is more fully diffused inside the server, further curbing the development of smoke and fire, and further ensuring the effect of extinguishing smoke and fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of the present invention after the box cover is removed;

[0020] Figure 3 is a schematic diagram of the structure at the heat dissipation base of the present invention;

[0021] Figure 4 isFigure 3 Schematic enlarged view of the structure at position A in

[0022] Figure 5 Cross-sectional view of the heat dissipation base of the present invention;

[0023] Figure 6 is Figure 5 Schematic enlarged view of the structure at position B in

[0024] Figure 7 Schematic diagram of the structure between the heat dissipation fan and the blades of the present invention;

[0025] Figure 8 Cross-sectional view of the box body of the present invention.

[0026] In the drawings, the components represented by each reference numeral are listed as follows: 1. Box body; 2. Box cover; 3. Positioning frame; 4. Heat dissipation base; 5. Servo motor; 6. Hole groove; 7. Slot; 8. Coupling shaft; 9. Blade; 10. Inert gas tank; 11. Worm gear; 12. Worm; 13. L-shaped air duct; 14. Gear; 15. Rack; 16. Connecting plate; 17. Link rod one; 18. Spring one; 19. Heat dissipation fan; 20. Link rod two; 21. Support column; 22. Nozzle; 23. Concave rod; 24. Connecting column; 25. Sleeve; 26. Rectangular block; 27. Support rod; 28. Spring two; 29. Annular plate; 30. Smoke detector; 31. Screw; 32. Screw hole; 33. Mounting seat; 34. Collar; 35. U-shaped plate. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1 - Figure 8 , a heat dissipation device for a server device shown in the figure, including a box body 1, the upper end of the box body 1 is installed with a box cover 2 through a fixing mechanism, and two corners at the rear of the lower end of the box cover 2 are fixedly connected with smoke detectors 30 (such as Figure 8As shown in the figure, a heat dissipation seat 4 is detachably installed inside the box body 1. Eight uniformly distributed holes 6 are opened at the front end of the heat dissipation seat 4, and four slots 7 are opened at the upper end of the heat dissipation seat 4. A connecting shaft 8 is rotatably arranged above the heat dissipation seat 4 through a driving mechanism. The four slots 7 and the eight holes 6 are arranged in a staggered manner. Inert gas cylinders 10 are fixedly installed on the inner walls of the four slots 7. Opening components are arranged between the tops of the four inert gas cylinders 10 and the connecting shaft 8. Heat dissipation fans 19 are installed on the inner walls of the eight holes 6 through supporting members. Auxiliary blowing mechanisms are arranged at the front ends of the plurality of heat dissipation fans 19. Limiting mechanisms are arranged between each pair of upper and lower corresponding auxiliary blowing mechanisms and the connecting shaft 8. Air guiding components are arranged at the air outlet ends of the four inert gas cylinders 10.

[0029] The air guiding component includes an L-shaped air duct 13. The L-shaped air duct 13 is communicated with the air outlet end of the inert gas cylinder 10. The L-shaped air duct 13 is fixedly inserted into the inner wall of the heat dissipation seat 4. Two nozzles 22 are sequentially communicated with the outer wall of the L-shaped air duct 13 from top to bottom. The two nozzles 22 respectively correspond to the centers of the corresponding two holes 6. It should be noted that the inert gas cylinder 10 is a cylinder filled with argon or other inert gases with fire extinguishing properties. This is common knowledge and will not be elaborated.

[0030] Please refer to Figure 1 and Figure 2 , in the figure, the fixing mechanism includes two groups of screws 31 and two groups of screw holes 32. The two groups of screws 31 symmetrically penetrate and are screwed tightly at the upper ends of the two side edges of the box cover 2. The two groups of screw holes 32 are respectively opened at the upper ends of the two sides of the box body 1. The two groups of screw holes 32 are respectively in threaded cooperation with the two groups of screws 31. Specifically, the settings of the screws 31 and the screw holes 32 enable the box cover 2 to be detachably installed on the box body 1. The detachably installed box cover 2 is convenient for subsequent maintenance and repair of the components inside the box body 1.

[0031] Please refer to Figure 2 and Figure 3 , in the figure, the driving mechanism includes a mounting seat 33 and a U-shaped plate 35. The mounting seat 33 is fixedly installed and connected to the upper end of one side edge of the heat dissipation seat 4. A servo motor 5 is fixedly installed on the upper end of the mounting seat 33. The servo motor 5 is electrically connected to the two smoke sensors 30. The output shaft end of the servo motor 5 is fixedly connected to one end of the connecting shaft 8. The U-shaped plate 35 is fixedly connected to the upper end of the other side edge of the heat dissipation seat 4. The other end of the connecting shaft 8 is rotatably connected to the side wall of the U-shaped plate 35.

[0032] Please refer to Figure 4 and Figure 5 , in the figure, the opening component includes four worm gears 12 and four worm wheels 11. The four worm wheels 11 are respectively fixedly connected to the top rotating ends of the four inert gas cylinders 10. The four worm gears 12 are linearly arrayed and fixedly sleeved on the outer wall of the connecting shaft 8. The four worm gears 12 are respectively meshed with the four worm wheels 11.

[0033] Please refer to Figure 6 and Figure 7 , in the figure, the support member includes two struts 21, and the two struts 21 are symmetrically and fixedly connected to the inner wall of the hole groove 6 up and down. The corresponding ends of the two struts 21 are respectively fixedly connected to the top and bottom of the outer wall of the radiator fan 19; specifically, the arrangement of the struts 21 enables the radiator fan 19 to be fixedly connected in the hole groove 6, providing a supporting and fixing function for the normal operation of the radiator fan 19.

[0034] Please refer to Figure 3 , Figure 5 , Figure 6 and Figure 7 , in the figure, the auxiliary blowing mechanism includes a connecting column 24, the connecting column 24 is fixedly connected to the center of the fan blades of the radiator fan 19, a collar 34 is fixedly sleeved on the front edge of the outer wall of the connecting column 24, and a plurality of rectangular blocks 26 are fixedly connected to the outer wall of the collar 34 in a circumferential array around its center. One end of each of the plurality of rectangular blocks 26 away from the collar 34 is rotatably connected to a blade 9. A sleeve 25 is slidably sleeved on the outer wall of the connecting column 24 near the rear edge, and an annular plate 29 is fixedly sleeved on the rear edge of the outer wall of the sleeve 25. A second spring 28 is fixedly connected between the annular plate 29 and the fan blades of the radiator fan 19, and the second spring 28 is slidably sleeved on the outer wall of the connecting column 24. A plurality of struts 27 are rotatably connected to the front edge of the outer wall of the sleeve 25 in a circumferential array around its center, and one end of each of the plurality of struts 27 away from the sleeve 25 is rotatably connected to the blade surface of each of the plurality of blades 9.

[0035] Please refer to Figure 4 - Figure 7 , in the figure, the limiting mechanism includes a first connecting rod 17 and a second connecting rod 20 located directly below the first connecting rod 17. The first connecting rod 17 is slidably inserted into the upper inner wall of the heat dissipation base 4, and the lower edge of the outer wall of the first connecting rod 17 is in close contact with the front end of the upper annular plate 29. The second connecting rod 20 is slidably inserted into the inner wall of the heat dissipation base 4, and the upper and lower ends of the second connecting rod 20 respectively extend into the corresponding upper and lower hole grooves 6. The lower edge of the outer wall of the second connecting rod 20 is in close contact with the front end of the lower annular plate 29. A concave rod 23 is fixedly connected between the upper edge of the outer wall of the second connecting rod 20 and the lower edge of the outer wall of the first connecting rod 17 near the lower edge. A linkage assembly is connected between the upper end of the first connecting rod 17 and the connecting shaft 8.

[0036] Please refer to Figure 4 , in the figure, the linkage assembly includes a gear 14 and a connecting plate 16. The connecting plate 16 is fixedly connected to the upper end of the first connecting rod 17. A first spring 18 is fixedly connected between the lower end of the connecting plate 16 and the upper end of the heat dissipation base 4, and the first spring 18 is slidably sleeved on the outer wall of the first connecting rod 17. A rack 15 is fixedly connected to the front end of the connecting plate 16. The gear 14 is fixedly sleeved on the outer wall of the connecting shaft 8 corresponding to the rack 15, and the gear 14 and the rack 15 are meshed with each other.

[0037] Please refer to Figure 2 With Figure 8 , in the illustration, positioning frames 3 are attached to both the front and rear ends of the heat dissipation base 4, and both positioning frames 3 are fixedly connected to the inner wall of the box body 1; specifically, the setting of the positioning frames 3 facilitates the installation of the heat dissipation base 4 at a designated position within the box body 1 (i.e., better playing the heat dissipation role on the premise of ensuring a reasonable layout of the space within the box body 1).

[0038] Working principle: During the operation of the server, the cooling fans 19 in each of the eight holes 6 on the heat dissipation base 4 will operate normally, thereby cooling the components inside the box body 1 by air cooling. When the circuits or components inside the box body 1 emit smoke due to a malfunction, the two smoke sensors 30 on the box cover 2 will capture the smoke particles and trigger an alarm signal. Since the servo motor 5 on the mounting base 33 is electrically connected to the two smoke sensors 30, any one of the smoke sensors 30 capturing the smoke particles can trigger the servo motor 5 to start working. The output shaft of the servo motor 5 will rotate and drive the coupling shaft 8 to rotate on the U-shaped plate 35. The coupling shaft 8 will drive the four worm gears 12 thereon to rotate. The four worm gears 12 will drive the corresponding worm wheels 11 to rotate. The worm wheels 11 will drive the rotary switches on the corresponding inert gas cylinders 10 to rotate, and then the valves of the four inert gas cylinders 10 will be opened (it should be noted that a controller is installed in the servo motor 5. When the smoke sensor 30 is triggered, the signal will be transmitted to the controller, and the controller will start the servo motor 5. Moreover, this controller can also control the start and stop of the servo motor 5, that is, the servo motor 5 will stop running after the valves of the four inert gas cylinders 10 are opened. This is common knowledge and will not be elaborated). Then, the inert gas in the four inert gas cylinders 10 in the four slots 7 can pass through their respective L-shaped air ducts 13 and be released outward through the two nozzles 22 on the L-shaped air ducts 13 in their respective corresponding holes 6. The inert gas can be blown by the eight cooling fans 19 towards the rear inside the box body 1, thereby creating an oxygen-deficient environment inside the rear of the box body 1, thus curbing the further development of the smoke and fire. Therefore, this heat dissipation device not only plays a heat dissipation role during the normal operation of the server, but also plays a role in extinguishing smoke and fire when the server malfunctions and generates smoke and fire, integrating the heat dissipation and fire extinguishing mechanisms and reducing the occupation of the space inside the box body 1.

[0039] When the coupling shaft 8 rotates driven by the servo motor 5, it will also drive the four gears 14 thereon to rotate. The four gears 14 will drive the corresponding racks 15 to move upward. The four racks 15 will drive the connecting plates 16 thereon to move upward. The four connecting plates 16 will drive the first connecting rods 17 thereon to move upward on the inner wall of the heat dissipation base 4. (During this process, the first springs 18 between the four connecting plates 16 and the heat dissipation base 4 will be stretched on their corresponding first connecting rods 17). One of the first connecting rods 17 moves upward and will leave the front end of the corresponding annular plate 29. The annular plate 29, under the action of the second spring 28 between the heat dissipation fan 19 and the annular plate 29 (the second spring 28 was originally in a compressed state) without the restrictive action of the first connecting rod 17, will move forward. The annular plate 29 will drive the sleeve 25 to slide forward on the outer wall of the connecting column 24 on the heat dissipation fan 19. The sleeve 25 will drive the multiple support rods 27 thereon to move forward. During the forward movement of the multiple support rods 27, the front ends of the multiple support rods 27 will gradually move away from each other and drive the blades 9 thereon to rotate on their corresponding rectangular blocks 26. (During this process, the multiple support rods 27 will rotate between the sleeve 25 and their corresponding blades 9). The multiple blades 9 will change from the original storage state to the unfolded state. (It should be noted that the multiple blades 9 usually in the storage state will be minimally in the hole slots 6, with little obstruction to the air passing through the hole slots 6 and will not affect the normal operation and heat dissipation effect of the heat dissipation fan 19. Due to the pulling of the first spring 18 on the connecting plate 16, it can prevent the first connecting rod 17 and the second connecting rod 20 from moving upward during the normal operation of the server, resulting in the unfolding of the blades 9. Only when the coupling shaft 8 rotates can a series of linkage actions drive the multiple blades 9 to unfold). When the heat dissipation fan 19 rotates, it will drive the connecting column 24 to rotate. The connecting column 24 will drive the collar 34 to rotate. The collar 34 will drive the multiple rectangular blocks 26 thereon to rotate. The multiple rectangular blocks 26 will drive the blades 9 thereon to rotate. The multiple blades 9 are symmetrically arranged with the multiple fan blades of the heat dissipation fan 19, that is, the multiple blades 9 will blow a part of the inert gas released by the nozzle 22 in the hole slot 6 towards the front inside the box body 1.

[0040] Meanwhile, the upward movement of the first connecting rod 17 will also drive the concave rod 23 to move upward in the upper hole groove 6. The concave rod 23 will drive the second connecting rod 20 to move upward on the inner wall of the heat dissipation base 4. Similarly, the upward movement of the second connecting rod 20 will also cause the multiple blades 9 in the lower hole groove 6 to unfold. Similarly, the upward movement of the other three first connecting rods 17 will also produce the same linkage effect, enabling the multiple blades 9 in the other hole grooves 6 to unfold. As a result, an oxygen-deficient environment will be formed in the front of the box body 1 due to the injection of inert gas, thus forming an oxygen-deficient environment inside the entire box body 1, further curbing the development of smoke and fire, and further ensuring the effect of extinguishing smoke and fire. The heat dissipation device of this server can play the role of extinguishing smoke and fire at the first time when the internal circuit or components of the server emit smoke and catch fire, timely and maximally reducing the further damage of the server, and also providing convenience for the timely repair of the server.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation device for server equipment, comprising a box, characterized in that: A box cover is installed on the upper end of the box body through a fixing mechanism, and smoke sensors are fixedly connected to the two corners at the rear of the lower end of the box cover. A heat sink is detachably installed inside the box body, and eight evenly distributed hole slots are opened at the front end of the heat sink, and four slots are opened at the upper end of the heat sink. A connecting shaft is arranged above the heat sink through a driving mechanism, and the four slots and the eight hole slots are staggered. Inert gas tanks are fixedly installed on the inner walls of the four slots, and opening components are arranged between the top ends of the four inert gas tanks and the connecting shaft. Cooling fans are installed on the inner walls of the eight hole slots through supporting members, and auxiliary blowing mechanisms are arranged at the front ends of the multiple cooling fans, and a limiting mechanism is arranged between the two corresponding auxiliary blowing mechanisms and the connecting shaft at each upper and lower position, and a gas guide component is arranged at the gas outlet end of the four inert gas tanks; The air guide assembly includes an L-shaped air guide pipe, which is connected to the air outlet end of the inert gas tank, and is fixedly inserted into the inner wall of the heat sink. The outer wall of the L-shaped air guide pipe is connected to two nozzles in sequence from top to bottom, and the two nozzles correspond to the centers of the two corresponding hole grooves respectively. The auxiliary blowing mechanism includes a connecting column, which is fixedly connected to the center of the blades of the heat dissipation fan. A collar is fixedly provided at the front edge of the outer wall of the connecting column. A plurality of rectangular blocks are fixedly connected to the outer wall of the collar in a circular array around the center thereof. The ends of the plurality of rectangular blocks away from the collar are all rotatably connected to blades. A sleeve is slidingly provided at the outer wall of the connecting column near the rear edge. A ring plate is fixedly provided at the rear edge of the outer wall of the sleeve. A second spring is fixedly connected between the ring plate and the blades of the heat dissipation fan. The second spring sliding sleeve is provided on the outer wall of the connecting column. A plurality of support rods are rotatably connected to the outer wall of the sleeve in a circular array around the center thereof. The ends of the plurality of support rods away from the sleeve are rotatably connected to the blade surfaces of the plurality of blades respectively. The limiting mechanism includes a connecting rod 1 and a connecting rod 2 located directly below the connecting rod 1. The connecting rod 1 is slidably inserted into the inner wall of the upper end of the heat sink, and the lower edge of the outer wall of the connecting rod 1 is tightly fitted with the front end of the annular plate located above. The connecting rod 2 is slidably inserted into the inner wall of the heat sink, and the upper and lower ends of the connecting rod 2 are respectively extended into the corresponding upper and lower hole grooves, and the lower edge of the outer wall of the connecting rod 2 is tightly fitted with the front end of the annular plate located below. A concave rod is fixedly connected between the upper edge of the outer wall of the connecting rod 2 and the outer wall of the connecting rod 1 near the lower edge, and a linkage component is connected between the upper end of the connecting rod 1 and the connecting shaft.

2. A heat dissipation device for server equipment according to claim 1, characterized in that: The fixing mechanism includes two sets of screws and two sets of screw holes. The two sets of screws are symmetrically penetrated and tightened on both sides of the upper end of the box cover. The two sets of screw holes are respectively opened on both sides of the upper end of the box body, and the two sets of screw holes are respectively matched with the two sets of screw threads.

3. A heat dissipation device for server equipment according to claim 1, characterized in that: The driving mechanism includes a mounting base and a U-shaped plate. The mounting base is fixedly installed and connected to the edge of one side of the upper end of the heat sink. A servo motor is fixedly installed on the upper end of the mounting base. The servo motor is electrically connected to the two smoke sensors. The output shaft end of the servo motor is fixedly connected to one end of the connecting shaft. The U-shaped plate is fixedly connected to the edge of the other side of the upper end of the heat sink, and the other end of the connecting shaft is rotatably connected to the side wall of the U-shaped plate.

4. A heat dissipation device for server equipment according to claim 1, characterized in that: The opening assembly includes four worms and four worm wheels. The four worm wheels are fixedly connected to the top rotating ends of the four inert gas tanks respectively. The four worms are linearly arrayed and fixedly sleeved on the outer wall of the connecting shaft. The four worms are meshed with the four worm wheels respectively.

5. A heat dissipation device for server equipment according to claim 1, characterized in that: The support member comprises two pillars, which are symmetrically fixedly connected to the inner wall of the hole groove, and corresponding ends of the two pillars are fixedly connected to the top and bottom of the outer wall of the heat dissipation fan respectively.

6. A heat dissipation device for server equipment according to claim 1, characterized in that: The linkage assembly includes a gear and a connecting plate. The connecting plate is fixedly connected to the upper end of the connecting rod. A spring is fixedly connected between the lower end of the connecting plate and the upper end of the heat sink. The spring is slidably sleeved on the outer wall of the connecting rod. A rack is fixedly connected to the front end of the connecting plate. The gear is fixedly sleeved on the outer wall of the connecting shaft corresponding to the rack, and the gear and the rack are meshed with each other.

7. A heat dissipation device for server equipment according to claim 1, characterized in that: The front and rear ends of the heat sink are both fitted with positioning frames, and the two positioning frames are both fixedly connected to the inner wall of the box body.

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