Heat dissipation device

Abstract

The utility model discloses a heat dissipation device, the heat dissipation device is arranged in a case of a server, the outer wall of the case is provided with heat dissipation holes, the heat dissipation device comprises a fan, an airflow channel and a wind shielding structure, and an air outlet of the fan is communicated with an air inlet of the airflow channel. The air blocking structure partially surrounds the periphery of the air outlet of the airflow channel and is connected with the airflow channel. The part of the wind shielding structure is used for covering the part of the surface of the heating element and is spaced from the part of the surface of the heating element. A gap between the wind shielding structure and the surface part of the heating element is used for being communicated with the heat dissipation holes. By adopting the heat dissipation device provided by the utility model, cold airflow blown out by the fan can be directly blown to the heating element through the airflow channel, and hot airflow formed after the cold airflow passes through the heating element can be directly blown to the heat dissipation holes of the server and then flows to the outer side of a case of the server through the heat dissipation holes, so that the heat dissipation efficiency of the server is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to communication technical field, especially relate to a heat dissipation device. BACKGROUND

[0002] With the rapid development of cloud computing, artificial intelligence, the research and use of high-performance servers are concerned. However, the stronger the performance and processing capacity of the server, the higher the heat of its internal components. In order to ensure the reliable operation of the server, at present, the air-cooled heat dissipation device is mainly arranged in the server case to dissipate heat for the heat generating components. However, due to the large number of devices arranged in the server case, it may block the cold air flow blown by the heat dissipation device, resulting in that the cold air flow cannot be directly delivered to the heat generating components, thereby reducing the heat dissipation efficiency of the server.

[0003] Therefore, how to improve the heat dissipation efficiency of the server to effectively dissipate heat for the heat generating components has become a difficult problem to be solved by the technical personnel in the field. INVENTION CONTENTS

[0004] The utility model provides a kind of heat dissipation device to improve the heat dissipation efficiency of server.

[0005] The utility model provides a kind of heat dissipation device, heat dissipation device is arranged in the case of server, and the outer wall of case is provided with heat dissipation hole, and heat dissipation device includes fan, airflow channel and windbreak structure, wherein, the air outlet of fan is communicated with the air inlet of airflow channel. Part of windbreak structure surrounds the outer periphery of the air outlet of airflow channel, and is connected with airflow channel. Part of windbreak structure is used to cover the part of surface of heat generating component, and is spaced apart from the part of surface of heat generating component;The gap between windbreak structure and the part of surface of heat generating component is used to be communicated with heat dissipation hole.

[0006] The heat dissipation device provided by the utility model is used, since the air outlet of fan is directly connected with the surface of heat generating component through airflow channel and windbreak structure, and the windbreak structure covering part of surface of heat generating component is spaced apart from the surface of heat generating component, and the gap between windbreak structure and the part of surface of heat generating component is used to be communicated with the heat dissipation hole of case. In this way, the hot air flow formed after cold air flow passes through heat generating component can be directly blown to the heat dissipation hole of server, and then flows to the outside of server case from heat dissipation hole, thereby effectively improving the heat dissipation efficiency of server.

[0007] In a possible implementation of the present application, a plurality of heat generating elements are arranged in the server, the heat dissipation device comprises a plurality of wind blocking structures, the airflow channel comprises a main air duct and a plurality of branch air ducts, and the main air duct comprises a plurality of first air outlets. The air outlet of the fan is in communication with the air inlet of the main air duct; the air inlets of the plurality of branch air ducts are in one-to-one correspondence with the plurality of first air outlets. The plurality of wind blocking structures are arranged in one-to-one correspondence with the outer periphery of the air outlets of the plurality of branch air ducts. The plurality of heat generating elements are directly cooled at the same time, thereby effectively improving the heat dissipation efficiency of the server.

[0008] In a possible implementation of the present application, part of the branch air duct is a flexible pipeline. This is conducive to improving the installation convenience and adaptability of the branch air duct in the server case.

[0009] In a possible implementation of the present application, the branch air duct further comprises a plug-in structure arranged at the air inlet of the branch air duct and used for plugging with the outer side wall of the main air duct. This is conducive to improving the installation convenience between the branch air duct and the main air duct.

[0010] In a possible implementation of the present application, the wind blocking structure comprises a connecting portion and a plug-in portion. The connecting portion surrounds the outer periphery of the air outlet of the airflow channel and is connected with the airflow channel; and the connecting portion is used for covering part of the surface of the heat generating element. The plug-in portion is arranged on the side of the connecting portion away from the airflow channel and is used for plugging with the shell of the heat generating element. This can meet the plugging requirements of the branch air duct and the main air duct while simplifying the structure of the heat dissipation device.

[0011] In a possible implementation of the present application, the heat dissipation device comprises a first adjusting structure arranged in the interior of the airflow channel. According to the different heat generating amounts of the heat generating elements, the first adjusting structure is used for adjusting the opening degree of the airflow channel, which is conducive to reducing the energy consumption of the heat dissipation device and improving the heat dissipation efficiency of the server.

[0012] In a possible implementation of the present application, the main air duct further comprises a second air outlet arranged at part of the outer periphery of the first air outlet. The second air outlet is used for being opposite to part of the plurality of heat generating elements. The cold air flow blown out of the second air outlet can be directly blown to the heat generating elements, which is conducive to further improving the heat dissipation efficiency of the server.

[0013] In a possible implementation of the present application, the heat dissipation device further comprises a second adjusting structure, part of the second adjusting structure covers the second air outlet, and the second adjusting structure is used for adjusting the opening degree of the second air outlet. This is used for reducing the energy consumption of the heat dissipation device and improving the heat dissipation efficiency of the server.

[0014] In a possible implementation of the present application, the second adjusting structure is a louver. In this way, the adjusting requirement of the opening degree of the second air outlet can be met, and the second adjusting structure is simplified.

[0015] In a possible implementation of the present application, the heat dissipation device further comprises a connecting rod mechanism and a driving part, one end of the connecting rod mechanism is in sliding connection with the driving part, and the part of the connecting rod mechanism away from the driving part is in rotary connection with the blades of the louver. In this way, the driving part drives the connecting rod mechanism to move, and the connecting rod mechanism drives the blades of the louver to rotate, so that the adjusting requirement of the opening degree of the second air outlet can be met, and the structure of the heat dissipation device is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A state diagram of the heat dissipation device provided by the present application arranged in a case of a server is shown in the figure.

[0017] Figure 2 A structure schematic diagram of the heat dissipation device provided by the present application is shown in the figure.

[0018] Figure 3 A structure schematic diagram of the heat dissipation device provided by the present application is shown in the figure.

[0019] Figure 4 A structure schematic diagram of the first adjusting structure of the heat dissipation device provided by the present application is shown in the figure. Figure 3

[0020] A structure schematic diagram of the second adjusting structure of the heat dissipation device provided by the present application is shown in the figure. Figure 5 Figure 2 A structure schematic diagram of the connecting rod mechanism and the driving part of the heat dissipation device provided by the present application is shown in the figure.

[0021] Figure 6 Figure 2

[0022] Reference signs: 01-heat dissipation hole; 02-heating element; 021-first heating body; 022-second heating body; 1-fan; 2-air flow channel; 21-main air duct; 22-branch air duct; 221-plug-in structure; 211-first air outlet; 212-second air outlet; 222-variable diameter pipe; 3-wind blocking structure; 31-connection part; 32-plug-in part; 4-first adjusting structure; 41-flow adjusting plate; 5-second adjusting structure; 6-connecting rod mechanism; 61-first connecting rod; 62-second connecting rod; 7-driving part; 71-rotary disc; 72-linear slide. DETAILED DESCRIPTION

[0023] ​​​In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described further in detail below with the drawings. However, the example implementation can be implemented in various forms, and should not be understood as being limited to the implementation described herein. The same reference signs in the drawings represent the same or similar structures, so repeated description thereof will be omitted. The utility model embodiment describes the words of expressing position and direction, which are explained by taking the drawings as an example, but changes can also be made as needed, and the changes are included in the protection scope of the utility model. The drawings of the utility model embodiment are only used to show the relative position relationship, and do not represent the real proportion.

[0024] It should be noted that specific details are set forth in the following description in order to provide an understanding of the utility model. However, the utility model can be implemented in various ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the utility model. Therefore, the utility model is not limited to the specific implementation disclosed below.

[0025] With the rapid development of cloud computing and artificial intelligence, the research and use of high-performance servers are attracting much attention. However, the more powerful the performance and processing capacity of the server, the higher the heat generated by its internal components. In order to ensure the reliable operation of the server, at present, a forced air cooling device is mainly arranged inside the server case to cool the heat generating components. And the forced air cooling device mainly adopts an axial flow fan to blow cold air into the case. However, in the prior art, when the maximum power of the axial flow fan is 100w and the size is 60mm*60mm*56mm, the air pressure is 11inch-H20. However, due to the large number of components arranged inside the server case, it may block the cold air flow blown by the cooling device, so that the cold air flow cannot be directly delivered to the heat generating components, thereby reducing the cooling efficiency of the server.

[0026] Therefore, the cooling device provided by the utility model directly communicates the air outlet of the fan with the surface of the heat generating component through the air flow channel, and the hot air flow formed after the cold air flow blown by the fan passes through the heat generating component can be directly blown to the heat dissipation hole of the server, thereby effectively improving the cooling efficiency of the server. In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described further in detail below with the drawings and specific embodiments.

[0027] It should be noted that the heat generating components exemplarily include OCP, PSU, CPU, memory, PCIE, etc. In addition, the cooling device provided by the utility model is described by taking the example of applying the cooling device to the server. It can be understood that the cooling device can also be applied to other computer devices, such as personal computers, microcomputers, workstations, blade servers, etc.

[0028] Reference Figure 1 , Figure 1 For showing the state diagram of the heat dissipation device provided by the utility model arranged in the case of the server, the outer wall of the case is provided with a heat dissipation hole 01. Referring to Figure 1 and Figure 2 , Figure 2 For showing the specific structure of the heat dissipation device, the heat dissipation device comprises a fan 1, an airflow channel 2 and a wind blocking structure 3, wherein the air outlet of the fan 1 is communicated with the air inlet of the airflow channel 2, so as to blow cold airflow into the airflow channel 2. The wind blocking structure 3 surrounds the outer periphery of the air outlet of the airflow channel 2 and is connected with the airflow channel 2, so as to limit the flow direction of the cold airflow blown out of the air outlet of the airflow channel 2. In addition, the wind blocking structure 3 surrounding the outer periphery of the air outlet of the airflow channel 2 covers part of the surface of the heat generating element 02, so that the cold airflow can directly blow to the surface of the heat generating element 02.

[0029] It should be noted that when the fan 1 is arranged, the fan 1 is exemplarily selected as a centrifugal fan, and when the maximum power consumption of the centrifugal fan can be 100w and the outer dimension is 60mm*60mm*56mm, the maximum air pressure can reach 19inch-H20. Compared with the same specification of the axial fan, the output air pressure is 1.5-2 times of the axial fan. It is beneficial to improve the heat dissipation effect of the server.

[0030] The heat dissipation device provided by the utility model is adopted, because the air outlet of the fan 1 is directly connected with the surface of the heat generating element 02 through the airflow channel 2 and the wind blocking structure 3, the wind blocking structure 3 covering part of the surface of the heat generating element 02 is arranged in the interval between the surface of the heat generating element 02, and the gap between the wind blocking structure 3 and part of the surface of the heat generating element 02 is used for being communicated with the heat dissipation hole 01 of the case. In this way, the hot airflow formed after the cold airflow passes through the heat generating element 02 can be directly blown to the heat dissipation hole 01 of the server, and then flows to the outside of the case of the server through the heat dissipation hole 01, so that the heat dissipation efficiency of the server is effectively improved.

[0031] In an optional embodiment, as shown in Figure 2 , the airflow channel 2 comprises a main air duct 21 and a plurality of branch air ducts 22, and the plurality of branch air ducts 22 are all communicated with the main air duct 21. When the main air duct 21 is arranged, the main air duct 21 comprises a plurality of first air outlets 211, and the air outlet of the fan 1 is communicated with the air inlet of the main air duct 21. The main air duct 21 is exemplarily a cavity structure with a cubic shape, and as Figure 1As shown, the length direction of the main air duct 21 is arranged along the width direction of the server case, and the orientation of the first air outlet 211 of the main air duct 21 is exemplarily arranged along the length direction of the server case and opposite to the heat dissipation hole 01 of the server case. In this way, the length of the branch air duct 22 is shortened, thereby reducing the cost of the heat dissipation device.

[0032] In the specific arrangement of the branch air duct 22, the air inlets of the plurality of branch air ducts 22 are in one-to-one correspondence with the plurality of first air outlets 211 of the main air duct 21, and the air outlets of the plurality of branch air ducts 22 are arranged in one-to-one correspondence with the plurality of heat generating elements 02, so as to directly dissipate heat from the plurality of heat generating elements 02 at the same time, thereby effectively improving the heat dissipation efficiency of the server.

[0033] Furthermore, the heat dissipation device comprises a plurality of wind blocking structures 3, which are arranged in one-to-one correspondence on the outer periphery of the air outlets of the plurality of branch air ducts 22, and there is a gap between each oppositely arranged wind blocking structure 3 and the surface of the corresponding heat generating element 02, so that the hot air flow formed after the cold air flows through the heat generating element 02 can be directly blown to the heat dissipation hole 01 of the server, thereby effectively improving the heat dissipation efficiency of the server.

[0034] It should be noted that the present application does not limit the structure of the branch air duct 22, and exemplarily, part of the branch air duct 22 is a flexible pipe or the whole is a flexible pipe, and the flexible pipe is exemplarily a bellows. The cross section of the bellows is circular, and the diameter can be flexibly selected according to the size of the heat dissipation assembly. The standard diameters are 30mm, 50mm, 80mm, 100mm, etc. Since the bellows is a bendable pipe, it is beneficial to improve the installation convenience and adaptability of the branch air duct 22 in the server case. It can be understood that when the position of the heat generating element 02 changes, the bellows in communication with the heat generating element 02 can be bent with the movement of the heat generating element 02. That is, without removing the branch air duct 22 bellows in communication with the heat generating element 02, the heat generating element 02 can be freely moved, which is beneficial to improve the movement convenience of the heat generating element 02.

[0035] In addition, the bellows can be made of flame-retardant and high-temperature-resistant materials to improve its operation reliability and stability. Exemplarily, the bellows can be a rigid polyethylene bellows. The rigid polyethylene bellows is made of high-density polyethylene as a base body, and a ring-shaped wave-shaped steel wire reinforcing body is wound outside the base body. An outer layer of polyethylene is compounded outside the wave-shaped steel wire reinforcing body, thereby forming a whole spiral bellows. In this way, the high rigidity and high strength of the steel material and the excellent properties of the plastic such as corrosion resistance, wear resistance and flexibility are organically combined, and the wall thickness is less than 1mm, thereby further improving the performance of the bellows and reducing the cost.

[0036] Or choose steel wire aluminum foil corrugated pipe, because aluminum foil material in the same strength demand while its thickness can be thinner and easy to bend. And in its outer circumferential cooperation as a reinforcing body to enhance the pipe pressure and stability.

[0037] It is worth mentioning that, as Figure 2 shown, the branch air duct 22 also includes a plug-in structure 221, which is provided at the air inlet of the branch air duct 22 and is used to plug with the outer side wall of the main air duct 21. It is beneficial to improve the installation convenience between the branch air duct 22 and the main air duct 21.

[0038] In addition, the branch air duct 22 also includes a reducing pipe 222, and when the plug-in structure 221 is specifically provided, the plug-in structure 221 can be provided at one end of the reducing pipe 222. It can be understood that the reducing pipe 222 is made of plastic material, and its shape can be adjusted according to actual needs. For example, one end of the reducing pipe 222 can be a circular opening, and the other end can be a rectangular opening. As Figure 2 shown, one end of the circular opening of the reducing pipe 222 is sleeved on the branch air duct 22, and the two are fixedly connected by a hoop. The plug-in structure 221 is provided at one end of the rectangular opening of the reducing pipe 222. For example, the plug-in structure 221 can be a protrusion along the edge of the rectangular opening, and the outer side wall of the main air duct 21 is provided with a plug-in slot. The above-mentioned protrusion can be inserted into the plug-in slot along one end of the plug-in slot, which can meet the plug-in requirements of the branch air duct 22 and the main air duct 21 while simplifying the structure of the heat dissipation device.

[0039] In addition, the plug-in structure 221 can be provided with two, and the two plug-in structures 221 are provided at opposite edges of the rectangular opening.

[0040] In an optional embodiment, the main air duct 21 can include multiple air inlets, and the heat dissipation device is provided with multiple fans 1, and the air outlets of the multiple fans 1 are provided one by one corresponding to the multiple air inlets of the main air duct 21, which can further improve the heat dissipation efficiency of the server.

[0041] It is worth mentioning that the air outlets of the multiple fans 1 can be provided one by one corresponding to the air inlets of the multiple branch air ducts 22, so that the cold air flow directly blows into the airflow channel 2, which is beneficial to reduce the energy loss of the cold air flow and further improve the heat dissipation efficiency of the server.

[0042] In a specific embodiment, as Figure 2 shown, the wind blocking structure 3 includes a connecting portion 31 and a plug-in portion 32. Specifically, the connecting portion 31 surrounds the outer periphery of the air outlet of the airflow channel 2 and is connected with the airflow channel 2 to cover part of the surface of the heat generating element 02. As Figure 1As shown, the connecting portion 31 is spaced apart from the surface of the heat generating element 02, and the gap between the two is used to communicate with the heat dissipation hole 01 of the server chassis.

[0043] In the specific arrangement of the connecting portion 31, the structure of the connecting portion 31 can refer to the structure of the variable diameter pipe 222, which will not be described here.

[0044] In the specific arrangement of the structure of the plug-in portion 32, the plug-in portion 32 is arranged on the side of the connecting portion 31 away from the airflow channel 2, i.e. on one end of the rectangular opening of the connecting portion 31, for plugging with the shell of the heat generating element 02. The structure of the plug-in portion 32 can refer to the plug-in structure 221 of the branch air duct 22, which will not be described here. In addition, a plug-in slot is arranged on the shell of the heat generating element 02 for plugging with the plug-in portion 32. In this way, the connection requirement of the wind blocking structure 3 and the heat generating element 02 can be met, and the wind blocking structure 3 is simplified.

[0045] It should be noted that the heat dissipation device provided by the utility model does not limit the connection position of the wind blocking structure 3 and the heat generating element 02, and the specific connection position can be adjusted according to actual requirements. For example, the wind blocking structure 3 can be connected to the top wall or the side wall of the heat generating element 02. The wind blocking structure 3 can also be a bending structure, wherein the connecting portion 31 is a planar structure and covers the top wall of the heat generating element 02. The plug-in portion 32 is located at the edge of the connecting portion 31.

[0046] It is worth mentioning that the wind blocking structure 3 can be connected to the side walls of multiple heat generating elements 02 arranged at intervals, and it should be noted that the multiple heat generating elements 02 are arranged at intervals along the width direction of the chassis. Along the length direction of the chassis, the connecting portion 31 of the wind blocking structure 3 is arranged opposite to the heat dissipation hole 01 of the chassis, so that the cold air blown by the fan 1 can flow to the side walls of the heat generating elements 02 through the wind blocking structure 31, and at the same time, it can flow to the heat dissipation hole through the gap between the adjacent two heat generating elements 02, which is helpful to further improve the heat dissipation efficiency of the server.

[0047] In addition, an airflow channel can also be arranged inside the heat generating element 02, and the air outlet of the wind blocking structure 3 communicates with the heat dissipation hole 01 through the airflow channel.

[0048] In a specific embodiment, referring to Figure 3 , Figure 3 for showing the structure of the heat dissipation device, specifically, the heat dissipation device comprises a first adjusting structure 4, which is arranged inside the airflow channel 2 for adjusting the opening degree of the airflow channel 2 according to the different heat generating amounts of the heat generating element 02, which is helpful to reduce the energy consumption of the heat dissipation device and improve the heat dissipation efficiency of the server.

[0049] In the specific arrangement of the first adjusting structure 4, as shown in Figure 4 ,Figure 4 For showing the first adjusting structure 4, the first adjusting structure 4 includes the flow adjusting plate 41, wherein the side wall of the flow adjusting plate 41 abuts against the side wall of the air flow channel 2, and when the plate surface of the flow adjusting plate 41 is turned to be parallel with the cross section of the air flow channel 2, it can completely block the air flow channel 2. And along the radial direction of the flow adjusting plate 41, the flow adjusting plate 41 is connected with the side wall of the air flow channel 2 through the rotating shaft.

[0050] In addition, the heat dissipation device includes a servo motor, and the setting position of the servo motor can be adjusted according to actual needs. For example, the servo motor can be arranged on the outer side wall of the air flow channel 2 and connected with the rotating shaft to drive the flow adjusting plate 41 to rotate.

[0051] It should be noted that when the air flow channel 2 includes the main air duct 21 and the plurality of branch air ducts 22, the first adjusting structure 4 is arranged at the air inlet of each branch air duct 22 to adjust the opening degree of the air inlet of each branch air duct 22, which is beneficial to further reduce the energy consumption and improve the heat dissipation efficiency of the server.

[0052] In a specific embodiment, as shown in Figure 2 The main air duct 21 further includes a second air outlet 212 arranged at a part of the outer periphery of the first air outlet 211 to blow the cold air flow towards the inside of the server case. And the second air outlet 212 is arranged opposite to the part of the heat generating elements 02, which is beneficial to further improve the heat dissipation efficiency of the server. In addition, the second air outlet 212 is arranged opposite to the part of the heat generating elements 02, so that the cold air flow blown by the second air outlet 212 can directly blow to the heat generating elements 02.

[0053] In an optional embodiment, as shown in Figure 1 The fan 1 is arranged on the side of the main air duct 21 away from the heat dissipation hole 01 of the server case along the length direction (Y direction as shown in Figure 1 The plurality of heat generating elements 02 are arranged between the main air duct 21 and the heat dissipation hole 01.

[0054] For the convenience of description, the following is according to the different installation positions of the plurality of heat generating elements 02, as shown in Figure 1As shown, the plurality of heat generating elements 02 is divided into a plurality of first heat generating elements 021 and a plurality of second heat generating elements 022, and along the length direction of the server case, the plurality of first heat generating elements 021 is closer to the main air duct 21 relative to the plurality of second heat generating elements 022, and the opening direction of the second air outlet 212 is towards the plurality of first heat generating elements 021, so that the second air outlet 212 can directly blow cold air towards the first heat generating element 021. It can be understood that, since the second air outlet 212 and the first heat generating element 021 are not communicated through the air flow channel 2, the cost of the heat dissipation device can be reduced while improving the heat dissipation efficiency of the server.

[0055] In addition, the second air outlet 212 can be provided in plurality, and the plurality of second air outlets 212 are one-to-one corresponding to the plurality of first heat generating elements 021, so as to further improve the heat dissipation efficiency.

[0056] And the plurality of first air outlets 211 is communicated with the plurality of second heat generating elements 022 one-to-one through the air flow channel 2, and the second heat generating element 022 is away from the main air duct 21 relative to the first heat generating element 021, that is, close to the heat dissipation hole 01 of the server case.

[0057] It should be noted that the shape of the second air outlet 212 can be set according to actual needs, for example, it can be rectangular.

[0058] In one specific embodiment, as shown in the drawings, Figure 2 The heat dissipation device further comprises a second adjusting structure 5, part of the second adjusting structure 5 covers the second air outlet 212, which can adjust the opening degree of the second air outlet 212 according to the different heat generation of the heat generating element 02, thereby facilitating the reduction of energy consumption of the heat dissipation device and improving the heat dissipation efficiency of the server.

[0059] In the specific setting of the second adjusting structure 5, as shown in the drawings, Figure 5 Figure 5 for showing the second adjusting structure 5, part of the second adjusting structure 5 is a louver. In this way, the adjustment requirement of the opening degree of the second air outlet 212 can be met while simplifying the second adjusting structure 5.

[0060] In addition, as shown in the drawings, Figure 6 The heat dissipation device further comprises a connecting rod mechanism 6 and a driving part 7, one end of the connecting rod mechanism 6 is slidably connected with the driving part 7, and the part of the connecting rod mechanism 6 away from the driving part 7 is rotatably connected with the blade of the louver. In order to meet the adjustment requirement of the opening degree of the second air outlet 212 and simplify the structure of the heat dissipation device, the driving part 7 drives the connecting rod mechanism 6 to move while realizing the rotation of the blade of the louver driven by the connecting rod mechanism 6.

[0061] ​In the specific setting of the driving part 7, the driving part 7 comprises a rotating disc 71 and a linear slide 72, the linear slide 72 is arranged on the surface of the rotating disc 71 and is arranged in a spaced manner with the axis of the rotating disc 71, so that when the rotating disc 71 rotates around its own axis, the linear slide 72 can be driven to rotate synchronously. Since one end of the connecting rod mechanism 6 is in sliding connection with the slide, the connecting rod mechanism 6 can move along the setting direction of the slide while the rotating disc 71 rotates, thereby driving the blades of the shutter to rotate.

[0062] It should be noted that the specific form of the connecting rod structure is not limited, and exemplarily, it comprises a first connecting rod 61 and a second connecting rod 62, and the first connecting rod 61 and the second connecting rod 62 are connected and perpendicular to each other, and the first connecting rod 61 is rotatably connected with the blades of the shutter, and the second connecting rod 62 is inserted into the linear slide 72 at one end away from the first connecting rod 61.

[0063] In addition, the rotating disc 71 is driven by a servo motor to rotate within a set angle range, thereby improving the automation degree of the second adjusting structure 5. The servo motor is one of the actuators in the automatic control of the server BMC.

[0064] In summary, the heat dissipation device provided by the utility model, since the air outlet of the fan 1 is directly connected with the surface of the heating element 02 through the airflow channel 2 and the wind blocking structure 3, the wind blocking structure 3 covering part of the surface of the heating element 02 is arranged in a spaced manner with the surface of the heating element 02, and the gap between the wind blocking structure 3 and part of the surface of the heating element 02 is used for communication with the heat dissipation hole 01. In this way, the hot air formed after the cold air flows through the heating element 02 can be directly blown to the heat dissipation hole 01 of the server, and then flows to the outside of the server case through the heat dissipation hole 01, thereby effectively improving the heat dissipation efficiency of the server.

[0065] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Therefore, if these modifications and variations of the utility model belong to the scope of the claims of the utility model and its equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A heat dissipation device arranged in a case of a server, wherein an outer wall of the case is provided with a heat dissipation hole, characterized in that, The heat dissipation device comprises a fan, an air flow channel and a wind blocking structure, wherein: The air outlet of the fan is in communication with the air inlet of the air flow channel; Part of the wind blocking structure surrounds the outer periphery of the air outlet of the air flow channel and is connected with the air flow channel; part of the wind blocking structure covers part of the surface of the heat generating element and is spaced apart from part of the surface of the heat generating element; the gap between the wind blocking structure and part of the surface of the heat generating element is in communication with the heat dissipation hole.

2. The heat dissipating device according to claim 1, wherein a plurality of said heat generating elements are provided in said server. The heat dissipation device comprises a plurality of wind blocking structures, the air flow channel comprises a main air duct and a plurality of branch air ducts, and the main air duct comprises a plurality of first air outlets; The air outlet of the fan is in communication with the air inlet of the main air duct; the air inlets of a plurality of branch air ducts are in one-to-one correspondence with a plurality of first air outlets; A plurality of wind blocking structures are arranged one-to-one on the outer periphery of the air outlets of a plurality of branch air ducts.

3. The heat dissipating device of claim 2, wherein, Part of the branch air duct is a flexible pipeline.

4. The heat dissipating device of claim 2, wherein The branch air duct comprises a plug-in structure arranged at the air inlet of the branch air duct and used for plugging with the outer side wall of the main air duct.

5. The heat dissipating device of claim 1, wherein The wind blocking structure comprises a connecting portion and a plug-in portion, the connecting portion surrounds the outer periphery of the air outlet of the air flow channel and is connected with the air flow channel; the connecting portion is used for covering part of the surface of the heat generating element; The plug-in portion is arranged on the side of the connecting portion away from the air flow channel and is used for plugging with the shell of the heat generating element.

6. The heat dissipating device of claim 1, wherein The heat dissipation device comprises a first adjusting structure arranged inside the air flow channel, and the first adjusting structure is used for adjusting the opening degree of the air flow channel.

7. The heat dissipating device of claim 2, wherein The main air duct further comprises a second air outlet arranged on part of the outer periphery of the first air outlet; the second air outlet is used for being opposite to part of a plurality of heat generating elements.

8. The heat dissipating device according to claim 7, wherein The heat dissipation device further comprises a second adjusting structure, part of the second adjusting structure covers the second air outlet, and the second adjusting structure is used for adjusting the opening degree of the second air outlet.

9. The heat dissipating device of claim 8, wherein, Part of the second adjusting structure is a louver.

10. The heat dissipating device of claim 9, wherein The heat dissipation device further comprises a connecting rod mechanism and a driving portion, one end of the connecting rod mechanism is in sliding connection with the driving portion, and part of the connecting rod mechanism away from the driving portion is in rotational connection with the blades of the louver.

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