CN218273310U - Air return prevention device and heat dissipation system - Google Patents

Abstract

The utility model relates to a server heat dissipation technical field discloses an air return prevention device and cooling system. The air return preventing device comprises a fixing plate and an air return preventing assembly, wherein the fixing plate is provided with at least two mounting positions, and each mounting position comprises a mounting plate and an air outlet arranged on the periphery of the mounting plate; all be provided with on every installation position and prevent the return air subassembly, prevent that the return air subassembly includes drive plate and a plurality of blade, and a plurality of blade evenly articulates on the mounting panel along the circumference of mounting panel, and one of drive plate and blade is provided with rectangular hole, and another is provided with the projection, projection and rectangular hole sliding fit, and rotatory drive plate can drive a plurality of blade and rotate to open or closed air outlet. When a certain fan is failed, the rotary driving plate can drive the plurality of blades to rotate, so that the blades close the air outlet and prevent the failed fan from refluxing, other blades are in a state of opening the air outlet, air flows at two ends of the whole device are communicated, and the risk of over-temperature of the server is reduced.

Description

Air return prevention device and heat dissipation system

Technical Field

The utility model relates to a server heat dissipation technical field, concretely relates to prevent return air device and cooling system.

Background

The server is usually provided with a plurality of fans for radiating heat of each part, when one fan fails, the flow of cooling air of the whole server is reduced, and due to the fact that pressure difference exists between the air inlet position and the air outlet position of the fan, the failed fan generates an air backflow phenomenon, the flow of the whole server is further reduced, and the heat radiation risk of the server is further increased. In addition, when the failed fan is replaced with the normal fan, the newly installed normal fan may have a fan blade reverse rotation state due to backflow, which may prevent the newly replaced fan from being started and the server from recovering to the normal operation state.

Therefore, it is desirable to provide an air return preventing device and a heat dissipating system to solve the above problems.

SUMMERY OF THE UTILITY MODEL

According to the utility model discloses an aspect, the utility model aims to provide an air return prevention device can effectively prevent failure fan department to take place backward flow phenomenon for the server still has the radiating effect when the fan became invalid, has reduced the overtemperature hazard of server.

In order to achieve the purpose, the utility model discloses a following technical scheme realizes:

air return prevention device includes:

the fixing plate is provided with at least two mounting positions, and each mounting position comprises a mounting plate and an air outlet arranged on the periphery of the mounting plate;

prevent return air subassembly, every all be provided with on the installation position prevent return air subassembly, prevent return air subassembly includes drive plate and a plurality of blade, a plurality of the blade is followed the circumference of mounting panel evenly articulate in on the mounting panel, the drive plate with one of the blade is provided with rectangular hole, and another is provided with the projection, the projection with rectangular hole sliding fit, it is rotatory the drive plate can drive a plurality of the blade rotates to open or close the air outlet.

Preferably, one of the mounting plate and the blades is provided with a hinge shaft, and the other is provided with a hinge hole, wherein the hinge shaft can penetrate through the hinge hole. Through the cooperation of articulated shaft and hinge hole, can realize the articulated of blade and mounting panel, this pin joint is as the center of rotation of blade.

Preferably, the driving plate is located between the mounting plate and the plurality of blades, an avoidance window is formed in the center of the driving plate, and the avoidance window is used for avoiding the position of the mounting plate. The hinge shaft can pass through the avoiding window and be installed with the hinge hole, so that the assembling process of the blade and the installing plate is conveniently realized.

As the preferred scheme, the upper end and the lower end of the fixing plate are both provided with mounting structures. The mounting structure can be fastened and connected with the chassis of the server, and the mounting of the air return prevention device is realized.

As a preferred scheme, the air-conditioning device further comprises a cover plate, wherein the cover plate is provided with at least two accommodating grooves, each accommodating groove corresponds to the installation position, each accommodating groove is internally provided with a vent communicated with the air outlet, the cover plate can be buckled on the fixing plate, and the air return preventing assembly is positioned in the accommodating grooves. Through the arrangement, the air return preventing device is compact in overall structure, highly integrated and small in occupied space.

As a preferred scheme, the bottom end of the cover plate is provided with a avoiding hole, and the avoiding hole is used for avoiding the mounting structure positioned at the lower end of the fixing plate. When the installation, can avoid apron and the mounting structure that is located the fixed plate lower extreme to take place to interfere, easy to assemble.

As an optimized scheme, a supporting plate is arranged in the accommodating groove, one of the supporting plate and the mounting plate is provided with a positioning column, the other one of the supporting plate and the mounting plate is provided with a positioning hole, and the positioning column can penetrate through the positioning hole. Through the cooperation of reference column and locating hole, can realize location and installation between fixed plate and the apron.

Preferably, the cover plate further comprises a driving assembly, the driving assembly comprises a driving piece and a gear, the driving piece is arranged on the cover plate, the gear is connected to the output end of the driving piece, rotating teeth are convexly arranged on the outer edge of the driving plate, and the gear is meshed with the rotating teeth. The driving assembly can automatically open or close the blades according to the state of the fan, the automation degree is high, and the labor cost is saved.

As a preferred scheme, the outer edge of the accommodating groove is provided with a limiting groove, the limiting groove is communicated with the accommodating groove, and the rotating teeth are positioned in the limiting groove. The spacing groove plays certain limiting displacement to the rotatory tooth of blade, can be so that the rotatory tooth of blade and gear interlock all the time be in the same place, avoid because the rotatory excessive rotatory tooth that leads to of driving piece drops with the gear.

According to another aspect of the present invention, an object of the present invention is to provide a heat dissipation system, which can avoid the backflow phenomenon, and the flow velocity of the cooling air is not affected when a certain fan fails.

In order to achieve the purpose, the utility model discloses a following technical scheme realizes:

the heat dissipation system comprises a heat dissipation device, the heat dissipation device comprises a mounting frame and at least two fans arranged in the mounting frame, and the heat dissipation system further comprises an air return prevention device, the air return prevention device is arranged on the mounting frame, and each fan corresponds to the mounting position.

The utility model has the advantages that:

the utility model provides an air return prevention device uses with the cooling system is supporting. When the blade normally works, the blade is in a state of opening the air outlet. When a certain fan loses efficacy, the driving plate is rotated, so that the convex column slides along the long hole to drive the blades to rotate, the blades close the air outlet, backflow at the failed fan is prevented, other blades are still in a state of opening the air outlet, air flows at two ends of the whole device are still communicated, the server still has a heat dissipation effect when the certain fan loses efficacy, the risk of over-temperature of the server is reduced, and the server can normally work.

Drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly and easily, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and the drawings described below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a heat dissipation system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an air return preventing device provided by an embodiment of the present invention;

fig. 3 is an exploded view of an air return preventing device provided by an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fixing plate according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a driving plate provided in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a blade according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;

fig. 8 is a matching relationship diagram of the driving plate and the driving assembly provided by the embodiment of the present invention.

In the figure:

100. an air return prevention device; 200. a heat sink; 210. a mounting frame; 220. a fan;

1. a fixing plate; 11. an installation position; 111. mounting a plate; 112. an air outlet; 113. a hinge hole; 114. positioning holes; 12. a mounting structure; 13. a limiting hole;

2. an anti-return air assembly; 21. a drive plate; 211. a convex column; 212. avoiding the window; 213. rotating the teeth; 214. a through hole; 22. a blade; 221. a strip hole; 222. hinging a shaft;

3. a cover plate; 31. a containing groove; 32. a vent; 33. a support plate; 331. a positioning column; 34. a limiting groove; 35. avoiding holes; 36. installing a window;

4. a drive assembly; 41. a drive member; 42. a gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

As shown in fig. 1, the present embodiment provides a heat dissipation system for dissipating heat from a server. The heat dissipation system comprises a heat dissipation device 200 and an air return prevention device 100, wherein the heat dissipation device 200 comprises a mounting frame 210 and at least two fans 220 arranged in the mounting frame 210, the air return prevention device 100 is arranged on the mounting frame 210, and wind blown by the fans 220 can pass through an air duct of the air return prevention device 100.

Specifically, as shown in fig. 2 and 3, the air return preventing device 100 includes a fixing plate 1 and an air return preventing member 2. As shown in fig. 4, the fixing plate 1 has a square plate-shaped structure, and has at least two mounting locations 11, each mounting location 11 includes a mounting plate 111 and an air outlet 112 disposed on a periphery of the mounting plate 111, each fan 220 corresponds to one mounting location 11, the fan 220 rotates around an axis of the mounting plate 111, and air blown by the fan 220 can pass through the air outlet 112. Each installation position 11 is provided with an anti-return air assembly 2, the number of the anti-return air assemblies 2 in the figure is four as an example, and certainly, the number of the anti-return air assemblies 2 is not limited to four, and can be adaptively selected according to actual requirements.

Further, as shown in fig. 3, the air return prevention device 100 provided by the present embodiment further includes a cover plate 3, the cover plate 3 can be fastened on the fixing plate 1, and the air return prevention component 2 is located between the cover plate 3 and the fixing plate 1, so that the air return prevention device 100 is compact in overall structure, highly integrated, and small in occupied space.

Specifically, as shown in fig. 7, the cover plate 3 has a square plate-like structure and is sized to fit the fixing plate 1. The cover plate 3 is provided with at least two circular containing grooves 31, each containing groove 31 corresponds to the mounting position 11, after the cover plate 3 is buckled with the fixing plate 1, the air return preventing assembly 2 is positioned in the containing groove 31, and a ventilation opening 32 communicated with the air outlet 112 is formed in each containing groove 31. As shown in fig. 5, each driving plate 21 is provided with a through hole 214 communicated with the air outlet 112, and the air outlet 112, the through hole 214 and the ventilation opening 32 are identical in shape and size and are sequentially communicated to form an air outlet channel.

Further, as shown in fig. 3, each of the return air prevention assemblies 2 includes a driving plate 21 and a plurality of blades 22, and the plurality of blades 22 are uniformly hinged to the mounting plate 111 in a circumferential direction of the mounting plate 111. As shown in fig. 5 and 6, one of the driving plate 21 and the blade 22 is provided with a long hole 221, and the other is provided with a boss 211, and the boss 211 is slidably fitted with the long hole 221. The elongated hole 221 may be a long straight hole or an arc hole, and the driving plate 21 can drive the plurality of blades 22 to rotate so as to open or close the air outlet 112.

It should be noted that the air returning prevention device 100 provided in this embodiment is used with the heat dissipation device 200, and during normal operation, the blades 22 are in a state of opening the air outlet 112. When one fan 220 fails, the driving plate 21 is rotated to make the convex column 211 slide along the long hole 221 so as to drive the plurality of blades 22 to rotate, so that the blades 22 close the air outlet 112 at the failed fan 220, and the failed fan 220 is prevented from generating backflow. As shown in fig. 1, the blade 22 located at the rightmost side is in a state of closing the air outlet 112, and the other blades 22 are still in a state of opening the air outlet 112, and the air flows at the two ends of the whole device are still communicated, so that the server still has a heat dissipation effect when one of the fans 220 fails, thereby reducing the risk of over-temperature of the server and ensuring normal operation of the server. When the failed fan 220 is repaired or replaced, the driving plate 21 is rotated again to make the blades 22 in a state of opening the air outlet 112, and the server returns to a normal working state.

Specifically, in the present embodiment, as shown in fig. 6, the elongated hole 221 is provided on the blades 22, and the structure of each blade 22 is identical. As shown in fig. 5, the convex columns 211 are disposed on the driving plate 21, the number of the convex columns 211 is equal to the number of the blades 22, the convex columns 211 are uniformly and alternately disposed along the circumferential direction of the driving plate 21, and each convex column 211 is matched with the elongated hole 221 on the corresponding blade 22. Of course, in other embodiments, the elongated hole 221 is disposed on the driving plate 21, and the convex pillar 211 is disposed on the vane 22, which can also achieve the above-mentioned effects.

Preferably, the number of the blades 22 is eight, each blade 22 is provided in an arc shape, and when the blades 22 are unfolded, two adjacent blades 22 are overlapped with each other, so as to form a closed operation plane, and the operation plane is used for closing the air outlet 112. When the blades 22 are retracted, two adjacent blades 22 are overlapped with each other, and several blades 22 are retracted to form a circular plane having an area equal to or smaller than that of the mounting plate 111, so as to fully open the air outlet 112. As shown in fig. 3, the blades 22 located at the rightmost side are in the deployed state, and the rest are in the retracted state. Of course, the number and shape of the blades 22 are not limited to the above description, and in other embodiments, the number and shape of the blades 22 may be adaptively selected according to actual needs, and are not specifically limited in this embodiment.

Further, as shown in fig. 4 and 6, one of the mounting plate 111 and the vane 22 is provided with a hinge shaft 222, and the other is provided with a hinge hole 113, and the hinge shaft 222 can be inserted into the hinge hole 113, thereby realizing the hinge of the vane 22 and the mounting plate 111, the hinge point serving as a rotation center of the vane 22.

Specifically, in the present embodiment, as shown in fig. 6, the hinge shaft 222 is disposed on each vane 22, as shown in fig. 4, the hinge holes 113 are disposed on the mounting plate 111, the number of the hinge holes 113 is equal to the number of the vanes 22, the hinge holes 113 are uniformly and alternately disposed along the circumferential direction of the mounting plate 111, and the hinge shaft 222 on each vane 22 is engaged with the corresponding hinge hole 113. Of course, in other embodiments, the hinge hole 113 is provided on the vane 22 and the hinge shaft 222 is provided on the mounting plate 111, which can also achieve the above-mentioned effects.

Further, when the driving plate 21 is installed, the driving plate 21 is located between the installation plate 111 and the plurality of vanes 22, and in order to implement the installation of the hinge shaft 222 and the hinge hole 113, as shown in fig. 5, a bypass window 212 is formed in the center of the driving plate 21, and the hinge shaft 222 can pass through the bypass window 212 and the hinge hole 113 to be installed.

Preferably, as shown in fig. 4, the fixing plate 1 is provided with mounting structures 12 at both upper and lower ends thereof, and the mounting structures 12 can be fastened and connected with the chassis of the server. Wherein, the mounting structure 12 at the lower end of the fixing plate 1 is a mounting lug for fastening and connecting with the chassis of the server.

Further preferably, as shown in fig. 7, the bottom end of the cover plate 3 is provided with an avoiding hole 35, and the avoiding hole 35 is used for avoiding a mounting lug located at the lower end of the fixing plate 1, so as to facilitate mounting and avoid the interference between the cover plate 3 and the mounting lug.

Further, as shown in fig. 4 and 7, a supporting plate 33 is connected to a center position of each receiving groove 31, one of the supporting plate 33 and the mounting plate 111 is provided with a positioning post 331, the other is provided with a positioning hole 114, and the positioning post 331 can penetrate through the supporting plate 33 to realize positioning and mounting between the fixing plate 1 and the cover plate 3.

Specifically, in the present embodiment, as shown in fig. 7, the positioning posts 331 are disposed at the center of the support plate 33, and as shown in fig. 4, the positioning holes 114 are disposed at the center of the mounting plate 111. Of course, in other embodiments, the positioning posts 331 are disposed on the mounting plate 111, and the positioning holes 114 are disposed on the supporting plate 33, which can also achieve the above-mentioned effects.

Further, as shown in fig. 2, the air return preventing device 100 provided in the present embodiment further includes a driving component 4. Specifically, as shown in fig. 8, the driving assembly 4 includes a driving member 41 and a gear 42, the driving member 41 is disposed on the cover plate 3 and electrically connected to a BMC (i.e., a baseboard management controller) of the server, and the BMC is an independent small system with its own processor, which is independent of other hardware on the server, and can monitor the temperature, voltage, and rotation speed of the fan 220 of the system, and perform corresponding adjustment work to ensure that the system is in a healthy state. The gear 42 is connected to the output end of the driving member 41, the driving plate 21 is a circular plate-shaped structure, the outer edge of the driving plate 21 is convexly provided with rotating teeth 213, and the gear 42 is meshed with the rotating teeth 213. The driving member 41 is a motor. By adopting the arrangement, the blades 22 can be automatically opened or closed according to the state of the fan 220, the automation degree is high, and the labor cost is saved.

It should be noted that, when the server normally operates, the blades 22 are in the closed state, and when the BMC of the server detects that a certain fan 220 is out of order, the BMC sends an open command to the driving member 41 corresponding to the fan 220 that is out of order, and the driving member 41 drives the corresponding driving plate 21 to rotate, and the driving plate 21 drives the blades 22 to move from the closed state to the open state. After the blades 22 are opened, the air outlet 112 is closed, so that a backflow phenomenon at the failed fan 220 is prevented, and the risk of server over-temperature is reduced. When the failed fan 220 is repaired or replaced, after the BMC detects that the fan 220 at the position normally works, the BMC sends a closing instruction to the corresponding driving member 41, the driving member 41 rotates the corresponding driving plate 21 again, the driving plate 21 drives the blades 22 to be in a closed state from an open state, after the blades 22 are closed, the air outlet 112 is opened, and the server returns to the normal working state.

Further, as shown in fig. 7, the outer edge of the accommodating groove 31 is provided with a limiting groove 34, the limiting groove 34 is communicated with the accommodating groove 31, and the rotating teeth 213 are located in the limiting groove 34. The limiting groove 34 has a certain limiting function on the rotating teeth 213 of the blade 22, so that the rotating teeth 213 of the blade 22 and the gear 42 are always meshed together, and the rotating teeth 213 and the gear 42 are prevented from falling off due to over-rotation of the driving member 41.

Further, with reference to fig. 7, a mounting window 36 is opened on one side of each limiting groove 34 on the cover plate 3, and the mounting window 36 is communicated with the corresponding limiting groove 34. After the driving member 41 is mounted on the cover plate 3, the gear 42 can be engaged with the rotation teeth 213 through the mounting window 36.

Preferably, as shown in fig. 4, a limit hole 13 is formed in one side of each mounting position 11 on the fixing plate 1, and the limit hole 13 corresponds to the rotating shaft of the driving member 41, so that the rotating shaft can penetrate through the limit hole 13 to limit the driving member 41.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. Air return prevention device, its characterized in that includes:

the fixing plate (1) is provided with at least two mounting positions (11), and each mounting position (11) comprises a mounting plate (111) and an air outlet (112) arranged on the periphery of the mounting plate (111);

prevent return air subassembly (2), every all be provided with on installation position (11) prevent return air subassembly (2), prevent return air subassembly (2) including drive plate (21) and a plurality of blade (22), a plurality of blade (22) are followed the circumference of mounting panel (111) evenly articulate in on mounting panel (111), drive plate (21) with one in blade (22) is provided with rectangular hole (221), and another is provided with projection (211), projection (211) with rectangular hole (221) sliding fit, it is rotatory drive plate (21) can drive a plurality of blade (22) rotate to open or close air outlet (112).

2. Air return prevention device according to claim 1, characterized in that one of the mounting plate (111) and the vanes (22) is provided with a hinge shaft (222) and the other with a hinge hole (113), the hinge shaft (222) being able to be inserted in the hinge hole (113).

3. The air return prevention device as claimed in claim 1, wherein the drive plate (21) is located between the mounting plate (111) and the plurality of blades (22), an escape window (212) is formed in the center of the drive plate (21), and the escape window (212) is used for escaping from the position of the mounting plate (111).

4. Air return prevention device according to claim 1, characterized in that the fixing plate (1) is provided with mounting structures (12) at both its upper and lower ends.

5. The air return prevention device according to claim 4, further comprising a cover plate (3), wherein the cover plate (3) has at least two receiving grooves (31), each receiving groove (31) corresponds to the mounting position (11), a vent (32) communicated with the air outlet (112) is formed in each receiving groove (31), the cover plate (3) can be buckled on the fixing plate (1), and the air return prevention assembly (2) is located in the receiving groove (31).

6. The air return prevention device according to claim 5, wherein a relief hole (35) is formed in the bottom end of the cover plate (3), and the relief hole (35) is used for avoiding the mounting structure (12) at the lower end of the fixing plate (1).

7. The air return prevention device according to claim 5, wherein a support plate (33) is disposed in the accommodation groove (31), one of the support plate (33) and the mounting plate (111) is provided with a positioning column (331), the other is provided with a positioning hole (114), and the positioning column (331) can be inserted into the positioning hole (114).

8. Air return preventing device according to claim 5, characterized by further comprising a driving assembly (4), wherein the driving assembly (4) comprises a driving member (41) and a gear (42), the driving member (41) is disposed on the cover plate (3), the gear (42) is connected to an output end of the driving member (41), the outer edge of the driving plate (21) is convexly provided with rotating teeth (213), and the gear (42) is engaged with the rotating teeth (213).

9. The air return prevention device as claimed in claim 8, wherein a limiting groove (34) is formed in the outer edge of the accommodating groove (31), the limiting groove (34) is communicated with the accommodating groove (31), and the rotating teeth (213) are located in the limiting groove (34).

10. Heat dissipation system, comprising a heat dissipation device (200), said heat dissipation device (200) comprising a mounting frame (210) and at least two fans (220) arranged in said mounting frame (210), characterized in that it further comprises an air return prevention device (100) according to any of claims 1-9, said air return prevention device (100) being arranged on said mounting frame (210), each of said fans (220) being directly opposite to a corresponding of said mounting locations (11).

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