Fan mounting mechanism, heat dissipation module and electronic equipment

Abstract

The utility model relates to the technical field of heat dissipation equipment, and discloses a fan mounting mechanism, a heat dissipation module and electronic equipment. The fan mounting mechanism comprises a connecting part and at least one box body, the connecting part is used for being detachably connected with a case; the box body is arranged on one side of the connecting part and comprises at least two mounting boxes; a mounting cavity is formed in the mounting box, and an air inlet and a secondary air outlet are formed in the mounting box; an exhaust duct is defined by the box body and the connecting part, and a first-stage air outlet is formed in the rear end of the exhaust duct; the air inlet is used for communicating the case with the mounting cavity, the second-stage air outlet is communicated with the mounting cavity and the exhaust duct, and the first-stage air outlet is used for discharging air out of the exhaust duct. According to the utility model, the air channels in the fan mounting mechanism are connected in parallel equivalently, so that the air volume of the whole machine is improved, and the problem that the air volume cannot meet the heat dissipation requirement on the premise that an old case is used in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation equipment, in particular to a fan installation mechanism, a heat dissipation module and electronic equipment. Background Art

[0002] like Figure 1 As shown, the existing server includes a chassis and a 9733 turbo fan; the front of the chassis is a hard disk insertion frame 21, the middle of the rear of the chassis is a single board insertion frame 22, and fan insertion frames 23 are arranged on the left and right sides of the chassis; the 9733 turbo fan is installed in the fan box insertion frame 23.

[0003] At present, the 9733 turbo fan is facing elimination in the industry, so there is a delivery risk. The industry is gradually using axial fans to replace 9733 vortex fans to dissipate heat for servers. In order to ensure the air volume requirements for heat dissipation, the industry usually designs a new chassis with axial fans to replace the old chassis that is compatible with the 9733 vortex fan, and directly eliminates the old chassis, resulting in material waste and increased modification costs. If the old chassis continues to be used, due to the limitations of the fan box and layout structure of the old chassis, only the 40 series axial flow small fans can be placed, which will cause the air volume to fail to meet the heat dissipation requirements. Therefore, how to increase the air volume while continuing to use the old chassis is an urgent problem that the industry needs to solve. Utility Model Content

[0004] The utility model provides a fan installation mechanism, a heat dissipation module and an electronic device, so as to solve the problem in the prior art that the air volume cannot meet the heat dissipation demand under the premise of using the old chassis.

[0005] The first aspect of the utility model provides a fan installation mechanism, comprising:

[0006] A connecting component, used for detachably connecting with the chassis;

[0007] At least one box body is arranged on one side of the connecting component, and the box body includes at least two installation boxes; the installation box has an installation cavity, and the installation box is provided with an air inlet and a secondary air outlet;

[0008] The box body and the connecting component are combined to form an exhaust duct, and a first-level air outlet is arranged at the rear end of the exhaust duct; the air inlet is used to connect the chassis with the installation cavity, the second-level air outlet connects the installation cavity with the exhaust duct, and the first-level air outlet is used to supply gas to discharge from the exhaust duct.

[0009] The fan installation mechanism provided by the utility model includes:

[0010] The two box bodies are arranged along a first direction, wherein the first direction is perpendicular to the length direction of the chassis; and the mounting box of each box body is arranged along the length direction.

[0011] According to the fan installation mechanism provided by the utility model, the exhaust duct is located between the two box bodies.

[0012] According to the fan installation mechanism provided by the utility model, the air inlet of the installation box located at the front end of the exhaust duct is opened on the front side of the installation box, and the air inlets of the remaining installation boxes are opened on the bottom plate of the connecting component.

[0013] According to the fan installation mechanism provided by the utility model, the secondary air outlet of the installation box located at the rear end of the exhaust duct is located at the rear side of the installation box; the secondary air outlets of the remaining installation boxes are located on the side of the installation box facing the exhaust duct.

[0014] The fan installation mechanism provided by the utility model also includes:

[0015] A guide component, through which the connecting component is used to be detachably connected to the chassis, and the guide component is used to close the exhaust duct to prevent the gas from flowing back.

[0016] The fan installation mechanism provided by the utility model also includes:

[0017] The anti-backflow structure is arranged at the primary air outlet and / or the secondary air outlet, and the anti-backflow structure is used to allow the gas to be discharged from the chassis and prevent the gas from flowing back.

[0018] According to the fan mounting mechanism provided by the utility model, the anti-backflow structure includes a shutter, and two rotation connection points of the edge fins of the shutter are at the same height as the upper edge of the primary air outlet and / or the secondary air outlet;

[0019] or;

[0020] The two rotation connection points of the edge fins of the shutter are higher than the upper edges of the primary air outlet and / or the secondary air outlet.

[0021] A second aspect of the utility model provides a heat dissipation module, comprising a fan and a fan mounting mechanism as described in any one of the above items; the fan is arranged on the fan mounting mechanism.

[0022] A third aspect of the utility model provides an electronic device, comprising a chassis and any one of the above-mentioned fan mounting mechanisms; the fan mounting mechanism is detachably connected to the chassis.

[0023] The fan installation mechanism, heat dissipation module and electronic device provided by the utility model are provided with at least one box body on one side of the connecting component, wherein the box body and the connecting component are enclosed to form an exhaust duct, and the box body includes at least two installation boxes, and the installation boxes are provided with an air inlet and a secondary air outlet. After the fan located in the installation cavity is started, the hot air in the chassis enters the installation cavity from the air inlet, then enters the exhaust duct from the secondary air outlet, and finally is discharged from the primary air outlet, thereby achieving heat dissipation of the chassis. Because each installation box is provided with an air inlet and a secondary air outlet, and the secondary air outlet is connected to the primary air outlet through the exhaust duct, it is equivalent to connecting the air duct in the fan installation mechanism in parallel, thereby increasing the air volume of the whole machine, and solving the problem that the air volume cannot meet the heat dissipation requirements when the 40 series axial flow fan is used to dissipate heat for the server in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is one of the structural schematic diagrams of the existing chassis.

[0026] Figure 2 It is a schematic diagram of the structure of the existing shutter after being turned upside down.

[0027] Figure 3 This is one of the layout structure diagrams of the installation box of the fan installation mechanism provided by the utility model, and the dotted arrows in the figure represent the gas flow direction.

[0028] Figure 4 The second schematic diagram of the layout structure of the installation box of the fan installation mechanism provided by the utility model, in which the dotted arrow represents the gas flow direction.

[0029] Figure 5 This is the third schematic diagram of the layout structure of the installation box of the fan installation mechanism provided by the utility model, and the dotted arrow in the figure represents the gas flow direction.

[0030] Figure 6 This is the fourth schematic diagram of the layout structure of the installation box of the fan installation mechanism provided by the utility model, and the dotted arrow in the figure represents the gas flow direction.

[0031] Figure 7 This is one of the three-dimensional structural schematic diagrams of the fan installation mechanism provided by the utility model.

[0032] Figure 8 yes Figure 7 Schematic diagram of the three-dimensional structure of the right side panel of the hidden installation box.

[0033] Fig. 9 yes Figure 7 Schematic diagram of the three-dimensional structure under left-side vision.

[0034] Fig.10 It is a three-dimensional structural schematic diagram of the shutter of the fan mounting mechanism provided by the utility model.

[0035] Reference numerals:

[0036] 20. Chassis; 21. Hard disk insertion frame; 22. Single board insertion frame; 23. Fan insertion frame;

[0037] 30. Fan;

[0038] 100, connecting part; 110, bottom plate; 120, side plate; 130, air outlet plate; 140, handle;

[0039] 200, box body; 211, first box body; 212, second box body; 213, third box body; 202, air inlet; 203, secondary air outlet;

[0040] 300, exhaust duct;

[0041] 400, first-level air outlet;

[0042] 500, guide components;

[0043] 600, anti-backflow structure; 610, mounting frame; 620, edge fins; 630, rotation connection point. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0046] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0047] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] When installing the 40 series axial flow fans in the fan box plug-in frame of the chassis, after heat dissipation analysis, at least three 40 series axial flow fans need to be connected in parallel on one side of the chassis to make the air volume meet the heat dissipation requirements of the server. However, the space of the fan box plug-in frame is limited, and it is impossible to physically connect at least three 40 series axial flow fans in parallel, which results in the heat dissipation air volume failing to meet the heat dissipation requirements of the server. In addition, the old chassis of mainstream servers need to be used continuously for a long time, and the overall air duct structure of the chassis cannot be modified. Therefore, how to increase the air volume on the basis of using the old chassis is an urgent problem that the industry needs to solve.

[0050] Combine the following Figures 3 to 10 The fan installation mechanism of the utility model is described in detail. Figure 3 This is one of the layout structure diagrams of the installation box of the fan installation mechanism provided by the utility model; Figure 4 A second schematic diagram of the layout structure of the installation box of the fan installation mechanism provided by the utility model; Figure 5 This is the third schematic diagram of the layout structure of the installation box of the fan installation mechanism provided by the utility model; Figure 6 This is the fourth schematic diagram of the layout structure of the installation box of the fan installation mechanism provided by the utility model; Figure 7 This is one of the three-dimensional structural schematic diagrams of the fan installation mechanism provided by the utility model; Figure 8 yes Figure 7 A schematic diagram of the three-dimensional structure of the right side panel of the hidden installation box; Fig. 9 yes Figure 7 Schematic diagram of the three-dimensional structure under left-view vision; Fig.10 It is a three-dimensional structural schematic diagram of the shutter of the fan mounting mechanism provided by the utility model.

[0051] like Figures 3 to 9 As shown, a specific embodiment of the first aspect of the utility model provides a fan installation mechanism. The fan installation mechanism includes a connecting component 100 and at least one box body 200.

[0052] Among them, the connecting component 100 is used for detachable connection with the chassis 20; the box body 200 is arranged on one side of the connecting component 100, and the box body 200 includes at least two installation boxes; the installation box has an installation cavity, and the installation box is provided with an air inlet 202 and a secondary air outlet 203.

[0053] The box body 200 and the connecting component 100 are combined to form an exhaust duct 300, and a first-level air outlet 400 is provided at the rear end of the exhaust duct 300; the air inlet 202 is used to connect the chassis 20 with the installation cavity, the second-level air outlet 203 connects the installation cavity with the exhaust duct 300, and the first-level air outlet 400 is used to supply gas to exhaust the exhaust duct 300.

[0054] In this embodiment, at least one box body 200 is arranged on one side of the connecting component 100, wherein the box body 200 and the connecting component 100 are enclosed to form an exhaust duct 300, and the box body 200 includes at least two installation boxes, and the installation boxes are provided with an air inlet 202 and a secondary air outlet 203. After the fan 30 located in the installation cavity is started, the hot air in the chassis 20 enters the installation cavity from the air inlet 202, then enters the exhaust duct 300 from the secondary air outlet 203, and finally is discharged from the primary air outlet 400, thereby achieving heat dissipation of the chassis 20. Because each installation box is provided with an air inlet 202 and a secondary air outlet 203, and the secondary air outlet 203 is connected to the primary air outlet 400 through the exhaust duct 300, it is equivalent to connecting the air ducts in the fan installation mechanism in parallel, thereby increasing the air volume of the whole machine, and solving the problem that the air volume cannot meet the heat dissipation requirements under the premise of using the old chassis in the prior art.

[0055] In addition, the present embodiment does not make any improvement to the overall air duct of the chassis 20, so the fan installation mechanism of the present embodiment also plays a role in saving materials and reducing modification costs.

[0056] like Figures 7 to 9 As shown, in some embodiments, the connecting component 100 includes a bottom plate 110 and two side plates 120; the two side plates 120 are respectively arranged at the upper edge and the lower edge of the bottom plate 110; the box body 200 is arranged at the rear section of the bottom plate 110, and a PCB interface board is arranged at the front end of the bottom plate 110.

[0057] In some embodiments, an air outlet plate 130 is disposed at the rear end of the bottom plate 110 . The air outlet plate 130 is provided with a plurality of air outlet holes (not shown in the figure). The air outlet plate 130 is disposed at the first-level air outlet 400 .

[0058] In some embodiments, a handle 140 is provided on the side of the air outlet plate 130 facing away from the box body 200 , and the handle 140 facilitates the assembly of the fan mounting mechanism to the fan box insertion frame 23 of the chassis 20 , and also facilitates the removal of the fan mounting mechanism from the fan box insertion frame 23 .

[0059] In some embodiments, each box body 200 includes two installation boxes. In other embodiments, each box body 200 includes at least three installation boxes. It can be understood that in this embodiment, the number of installation boxes of each box body 200 is not limited.

[0060] Furthermore, the installation boxes are formed by enclosing sheet metal. Specifically, the bottom plate 110 serves as the bottom plate of all the installation boxes. Along the length direction, the installation cavities of two adjacent installation boxes are separated by sheet metal.

[0061] In some embodiments, the fan mounting mechanism includes one box body 200. In some other embodiments, the fan mounting mechanism includes at least two box bodies 200. It can be understood that in this embodiment, the number of box bodies 200 is not limited.

[0062] In view of the limited size of the fan box inserting frame 23 of the chassis 20, preferably, in this embodiment, the number of the box bodies 200 is two. In other words, if the size limit of the fan box inserting frame 23 is not considered, the number of the box bodies 200 can be more than two.

[0063] For ease of description, the installation box located at the front end of the exhaust duct 300 is named the first box body 211, the installation box located at the rear end of the exhaust duct 300 is named the second box body 212, and the installation box between the first box body 211 and the second box body 212 is named the third box body 213.

[0064] like Figure 3 As shown, in some embodiments, the fan installation mechanism includes a box body 200, and the box body 200 includes three installation boxes; the three installation boxes are arranged in a stepped manner on the connecting component 100. Specifically, the three installation boxes are arranged along the length direction of the chassis 20, the third box body 213 is located between the first box body 211 and the second box body 212, and the third box body 213 is located below the second box body 212, and the first box body 211 is located below the third box body 213.

[0065] like Figure 4 As shown, in some embodiments, the fan installation mechanism includes a box body 200, and the box body 200 includes three installation boxes; the three installation boxes are arranged in a cross-staggered manner on the connecting component 100. Specifically, the box body 200 includes a first box body 211 and two second box bodies 212; the two second box bodies 212 are arranged at the rear end of the exhaust duct 300 along the height direction of the chassis 20, and the first box body 211 and the second box body 212 are arranged along the length direction.

[0066] like Figure 5 and Figure 6 As shown, in some embodiments, the fan mounting mechanism includes two box bodies 200; the two box bodies 200 are arranged along a first direction, and the first direction is perpendicular to the length direction; the mounting box of each box body 200 is arranged along the length direction.

[0067] In this embodiment, by arranging the box body 200 along the first direction, the internal space of the fan box insertion frame 23 of the chassis 20 can be fully utilized, so that as many fans 30 as possible can be installed in the limited internal space, further increasing the air volume.

[0068] Optionally, the first direction includes the height direction of the chassis 20 or the width direction of the chassis 20. When the fan box insertion frame 23 is located on the left or right side of the chassis 20, the first direction is preferably as follows: Figure 1 When the fan box inserting frame 23 is located at the upper side or the lower side of the chassis 20, the first direction is preferably as follows Figure 1 The width direction of the chassis 20 is shown.

[0069] like Figures 5 to 9 As shown, in some embodiments, the exhaust duct 300 is located between the two box bodies 200. In other words, the two box bodies 200 and the connecting component 100 enclose the exhaust duct 300 with an opening on the right side. It is possible to avoid designing two exhaust ducts 300, so that the secondary air outlets 203 of the two box bodies 200 are arranged opposite to each other and are both connected to the exhaust duct 300, thereby improving the parallel effect of the overall air duct and thereby increasing the air volume.

[0070] like Figure 6 As shown, in some embodiments, each box body 200 includes a first box body 211, a second box body 212 and at least a third box body 213; the first box body 211, the third box body 213 and the second box body 212 are arranged along the length direction, and the third box body 213 is located between the first box body 211 and the second box body 212; the third box body 213 is provided with an air inlet 202 on a side away from the exhaust duct 300. The whole machine air volume of the fan installation mechanism can be adjusted by increasing or decreasing the number of the third box bodies 213 so that the air volume meets the heat dissipation requirements.

[0071] In some embodiments, the air inlet 202 of the installation box located at the front end of the exhaust duct 300 is opened on the front side of the installation box, and the air inlet 202 of the remaining installation boxes is opened on the bottom plate 110 of the connecting component 100. Specifically, the front side of the first box body 211 is opened with an air inlet 202, and the left side of the second box body 212 and the left side of the third box body 213 are opened with corresponding air inlets 202. On the one hand, it avoids installing sheet metal on the front side of the first box body 211, saving raw materials; on the other hand, it avoids opening the air inlet 202 on the left side of the first box body 211 again, simplifying the processing process and reducing costs.

[0072] In some other embodiments, the bottom plate of the first box body 211 is provided with an air inlet 202, and the front side of the first box body 211 is also provided with an air inlet 202. In other words, the first box body 211 has two air inlets 202, which increases the air inlet area and further improves the air volume.

[0073] In some embodiments, the secondary air outlet 203 of the installation box located at the rear end of the exhaust duct 300 is located at the rear side of the installation box; the secondary air outlet 203 of the remaining installation boxes is opened on the side of the installation box facing the exhaust duct 300. Specifically, the rear side surface of the second box body 212 is provided with a corresponding secondary air outlet 203, and the lower side surfaces of the first box body 211 and the third box body 213 are provided with secondary air outlets 203. On the one hand, it avoids installing sheet metal on the rear side surface of the second box body 212 to close the rear end of the second box body 212, saving raw materials; on the other hand, it avoids re-processing the secondary air outlet 203 for the second box body 212, simplifying the processing process and reducing costs.

[0074] In some embodiments, the box body 200 includes a shell and a partition plate; the front and rear sides of the shell are both designed to be open; the partition plate is disposed in the shell to divide the shell into at least two independent installation cavities.

[0075] Optionally, the housing is formed by enclosing sheet metal. The partition plate can be sheet metal.

[0076] Optionally, the bottom plate 110 can be used as the bottom plate of the housing, the side plate 120 can be used as one side plate of the housing, and the other side plate and the top plate of the housing are all sheet metal. The partition plate is arranged in the housing along the length direction to divide the interior of the housing into at least two installation cavities.

[0077] That is to say, a closed sheet metal is installed between the rear of each secondary air outlet 203 and the air inlet 202 of the rear installation cavity, so that the exhaust duct 300 is isolated from the air inlets of other box bodies except the first box body 211 to prevent backflow of the duct.

[0078] like Figure 1 , Figure 7 and Figure 8 As shown, in some embodiments, the fan mounting mechanism further includes a guide component 500; the connecting component 100 is used to be detachably connected to the chassis 20 through the guide component 500, and the guide component 500 is used to close the exhaust duct 300 to prevent gas backflow. Specifically, the exhaust duct 300 is open on one side away from the bottom plate 110, the front end of the exhaust duct 300 is provided with a sheet metal, and the rear end of the exhaust duct 300 is provided with an air outlet plate 130; when the connecting component 100 is connected to the chassis 20 through the guide component 500, the guide component 500 is limited to the exhaust duct 300 to close the opening and the front end of the exhaust duct 300, which can prevent the internal air duct backflow of the fan mounting mechanism.

[0079] like Figure 7 and Figure 8 As shown, specifically, the guide component 500 includes a slide groove and a guide rail; the guide rail is used to be set in the fan box insertion frame 23 of the chassis 20, and the two box bodies 200 and the sheet metal located at the front end of the exhaust duct 300 are surrounded to form a slide groove, and the guide rail and the slide groove slide together along the length direction.

[0080] Optionally, a "J"-shaped sheet metal is disposed on the chassis 20, and the "J"-shaped sheet metal is used as a guide rail.

[0081] In some embodiments, the fan installation mechanism further includes an anti-backflow structure 600; the anti-backflow structure 600 is disposed at the primary air outlet 400 or / and the secondary air outlet 203, and the anti-backflow structure 600 is used to allow gas to be discharged from the chassis 20 while preventing gas from flowing back. When the fan 30 is started, the anti-backflow structure 600 opens the primary air outlet 400 or / and the secondary air outlet 203, and the gas enters the exhaust duct 300 from the inside of the chassis 20 through the air inlet 202, the installation cavity, and the secondary air outlet 203, and is finally discharged from the primary air outlet 400. When the fan 30 stops running, or the fan 30 is suddenly damaged during operation, the anti-backflow structure 600 closes the primary air outlet 400 or / and the secondary air outlet 203 to prevent gas from flowing back.

[0082] In some embodiments, the anti-backflow structure 600 includes a fan blade and an electromagnet; the electromagnet is disposed in the mounting box; when the electromagnet is powered on, the fan blade is attracted, so that the fan blade rotates upward to close the primary air outlet 400 and / or the secondary air outlet 203 to prevent air backflow. When the electromagnet is powered off, the fan blade opens the primary air outlet 400 and / or the secondary air outlet 203 under its own weight to allow the gas in the chassis 20 to be discharged.

[0083] At present, in order to avoid the backflow phenomenon of the fan 30 when the fan 30 fails, the air outlet of the fan 30 is equipped with a shutter anti-backflow device, such as Figure 2 As shown. When the fan 30 operates normally, the blades open to blow the wind, and when the fan 30 fails, the blades in the failed area close. Since the fan mounting mechanisms installed on the left and right sides of the chassis 20 have the same structure, the fan mounting mechanisms on the left and right sides are turned upside down during installation, and after the blades of the shutter backflow prevention device are turned upside down, there is no blade to block the top, and the backflow prevention function cannot be achieved. A common solution is to thicken the upper and lower frames and shorten the height of the ventilation windows to avoid air leakage, but this also reduces the ventilation area, which is not conducive to heat dissipation.

[0084] like Fig.10 As mentioned, in some embodiments, the backflow prevention structure 600 includes a shutter; the two rotation connection points 630 of the edge fins 620 of the shutter are at the same height as the upper edge of the primary air outlet 400 and / or the secondary air outlet 203;

[0085] Alternatively, the two rotation connection points 630 of the edge fins 620 of the shutter are higher than the upper edges of the primary air outlet 400 and / or the secondary air outlet 203 .

[0086] In this embodiment, when the edge fin 620 is in the upper position, it can be drooped normally to block the wind. When the edge fin 620 is in the lower position, it is stacked as a redundant fin. When the fan mounting mechanism is installed on the left and right sides of the chassis 20, the blades of the shutter will be turned upside down. The redundant fins are added to ensure that there is no gap in the air guide after turning upside down.

[0087] In some embodiments, the shutter includes a mounting frame 610 and a plurality of fins; the mounting frame 610 is formed with a mounting area, the mounting frame 610 is arranged at the primary air outlet 400, the plurality of fins are arranged in a vertical direction, and each fin is rotatably matched with the mounting frame 610. The rotation axis of the edge fin 620 at the upper end is equal to or higher than the upper edge of the mounting frame 610, and the rotation axis of the edge fin 620 at the lower end is equal to or lower than the lower edge of the mounting frame 610. It is ensured that there is no gap between the edge fin at the upper end and the edge of the mounting frame 610 when the fin is hanging down.

[0088] Optionally, the distance between the rotation axes of two adjacent fins should be smaller than the height of the fins to ensure that the upper fin can cover the lower fin when it falls.

[0089] Optionally, the rotation connection points 630 of the edge fins are located at the left and right edges of the fins respectively.

[0090] The specific embodiment of the second aspect of the present invention provides a heat dissipation module. The heat dissipation module includes a fan 30 and a fan mounting mechanism of any of the above embodiments; the fan 30 is arranged on the fan mounting mechanism.

[0091] Since the heat dissipation module of this embodiment includes the above-mentioned fan 30 installation structure, it has at least the above-mentioned advantages.

[0092] A specific embodiment of the third aspect of the present invention provides an electronic device, which includes a chassis 20 and a fan mounting mechanism of any of the above embodiments; the fan mounting mechanism is detachably connected to the chassis 20.

[0093] Because the fan mounting mechanism of any of the above embodiments is adopted, at least the above advantages are possessed.

[0094] In some embodiments, the guide rails of the guide component are disposed in the fan box insertion frame 23 of the chassis 20 .

[0095] Optionally, the electronic device includes a computer host or a server.

[0096] Preferably, the electronic device is a server.

[0097] In some embodiments, the fan mounting mechanism is detachably connected to the outer side of the chassis 20. Setting the fan mounting mechanism on the outside of the chassis 20 can avoid occupying the internal space of the chassis 20. A larger number of single boards and / or hard drives can be installed based on the limited internal space of the chassis 20.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A fan mounting mechanism, characterized in that: include: A connecting component (100) used for being detachably connected to the chassis (20); At least one box body (200) is arranged on one side of the connecting component (100), the box body (200) comprising at least two installation boxes; the installation box has an installation cavity therein, and the installation box is provided with an air inlet (202) and a secondary air outlet (203); The box body (200) and the connecting component (100) are combined to form an exhaust duct (300), and a primary air outlet (400) is provided at the rear end of the exhaust duct (300); the air inlet (202) is used to connect the chassis (20) and the installation cavity, the secondary air outlet (203) connects the installation cavity and the exhaust duct (300), and the primary air outlet (400) is used to allow gas to be discharged from the exhaust duct (300).

2. The fan mounting mechanism according to claim 1, characterized in that: include: The two box bodies (200) are arranged along a first direction, wherein the first direction is perpendicular to the length direction of the chassis (20); and the installation box of each box body (200) is arranged along the length direction.

3. The fan mounting mechanism according to claim 2, characterized in that: The exhaust duct (300) is located between the two box bodies (200).

4. The fan mounting mechanism according to claim 3, characterized in that: The air inlet (202) of the installation box located at the front end of the exhaust duct (300) is opened on the front side of the installation box, and the air inlets (202) of the remaining installation boxes are opened on the bottom plate (110) of the connecting component (100).

5. The fan mounting mechanism according to claim 3, characterized in that: The secondary air outlet (203) of the installation box located at the rear end of the exhaust duct (300) is located at the rear side of the installation box; the secondary air outlets (203) of the remaining installation boxes are located on the side of the installation box facing the exhaust duct (300).

6. The fan mounting mechanism according to claim 1, characterized in that: Also includes: A guide component (500), the connecting component (100) is used to be detachably connected to the chassis (20) through the guide component (500), and the guide component (500) is used to close the exhaust duct (300) to prevent the gas from flowing back.

7. The fan mounting mechanism according to any one of claims 1 to 6, characterized in that: Also includes: The backflow prevention structure (600) is arranged at the primary air outlet (400) and / or the secondary air outlet (203), and the backflow prevention structure (600) is used to allow the gas to be discharged from the chassis (20) while preventing the gas from flowing back.

8. The fan mounting mechanism according to claim 7, characterized in that: The backflow prevention structure (600) comprises a louver, and two rotation connection points (630) of the edge fins (620) of the louver are at the same height as the upper edge of the primary air outlet (400) and / or the secondary air outlet (203); or; The two rotation connection points (630) of the edge fins (620) of the shutter are higher than the upper edges of the primary air outlet (400) and / or the secondary air outlet (203).

9. A heat dissipation module, characterized in that: It comprises a fan (30) and a fan mounting mechanism according to any one of claims 1 to 8; the fan (30) is arranged on the fan mounting mechanism.

10. An electronic device, characterized in that: It comprises a chassis (20) and a fan mounting mechanism according to any one of claims 1 to 8; the fan mounting mechanism is detachably connected to the chassis (20).

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