Non-return air stopping module and case

Abstract

The invention discloses a non-return air stopping module and a case. The non-return air stopping module comprises a base part, a spiral baffle, a first rotating part and a second rotating part. The base part comprises a connecting shaft and a connecting piece, and the connecting piece fixes the connecting shaft; the baffle comprises a first section, a second section and a third section, the first section and the second section are located at the head and the tail, the third section is connected with the first section and the second section, the first section and the second section are arranged in the first direction, the third section comprises an opening and a shielding part, the shielding part is elastically connected with the opening, and the baffle is elastically arranged in the first direction. The first rotating piece is rotationally connected with the connecting piece and connected with the first section. The second rotating piece is rotationally connected with the connecting shaft and movably arranged in the first direction, and the second rotating piece is connected with the second section. Through the elastic arrangement of the baffle, when wind power exists, a channel between the first section and the second section is opened for heat dissipation, and when wind power does not exist, the channel between the first section and the second section is closed, airflow backflow and airflow turbulence are reduced, and the influence on heat dissipation and cooling in the case is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cabinets, in particular to a reverse wind module and a cabinet. BACKGROUND

[0002] Currently, the servers in the computer room are usually arranged in the cabinet, and the heat in the cabinet is discharged to the outside of the cabinet through the fan. However, when the fan fails, air flow backflow occurs, which causes air flow disorder in the heat dissipation path, and affects the heat dissipation and cooling efficiency in the cabinet. SUMMARY

[0003] Therefore, it is necessary to provide a reverse wind module and a cabinet, which can reduce air flow backflow and reduce the influence on the heat dissipation and cooling efficiency in the cabinet.

[0004] Embodiments of the present application provide a reverse wind module for being installed in a fan module, which comprises a base, a spiral baffle, a first rotating part and a second rotating part. The base comprises a connecting shaft and a connecting part, and the connecting part is fixed to the connecting shaft. The baffle comprises a first section and a second section at the head and tail, and a third section connecting the first section and the second section. The first section and the second section are arranged in a first direction, and the third section comprises an opening and a shielding part. The shielding part is elastically connected to the opening, and the baffle is elastically arranged in the first direction. The first rotating part is rotationally connected to the connecting part, and the first rotating part is connected to the first section. The second rotating part is rotationally connected to the connecting shaft and movably arranged in the first direction, and the second rotating part is connected to the second section. The shielding part is configured to be blown by the wind of the fan module and open the opening. The wind drives the baffle to rotate, and the second section is configured to be driven by the wind to move in the first direction and open a channel connecting the outside between the first section and the second section.

[0005] The reverse wind module of the present application opens the opening by the wind, so that the wind drives the baffle to rotate and drives the second section to move in the first direction, which can increase the distance between the first section and the second section. The wind is discharged through the channel between the first section and the second section. By elastically arranging the baffle in the first direction, when the fan module has no wind output, the second section is driven to move in the direction opposite to the first direction by elasticity, so that the second section is close to the first section, the channel between the first section and the second section is closed, the air flow backflow and air flow disorder are reduced, the influence on the heat dissipation and cooling efficiency of the system in the cabinet is reduced, and the entry of external dust and the like into the cabinet is also reduced. Especially when the fan module fails, the air flow is more likely to enter the cabinet. The reverse wind module of the present application can reduce the occurrence of air flow backflow.

[0006] Optionally, in some embodiments of the present application, the first rotating part comprises a first rotating part and a first connecting part. The first rotating part is rotationally connected to the connecting part. The first connecting part is connected to the first rotating part, and the first connecting part is connected to the first section.

[0007] Optionally, in some embodiments of the present application, the first section comprises a first end portion located at one end of the first section away from the third section; the first connecting portion is provided with a first recess, and the first end portion is arranged in the first recess, which is conducive to stable rotation of the baffle by the first rotating member and reduces the occurrence of the rotation center deviation of the baffle.

[0008] Optionally, in some embodiments of the present application, the second rotating member comprises a second rotating portion and a second connecting portion, the second rotating portion is sleeved on the connecting shaft, the second section comprises a second end portion located at one end of the second section away from the third section, and the second connecting portion connects the second end portion.

[0009] Optionally, in some embodiments of the present application, part of the first connecting portion is located between the first section and the second section in the first direction, which can close one end of the channel through the first connecting portion in the case of baffle retraction, thereby reducing the backflow of air flow. And / or, part of the second connecting portion is located between the first section and the second section in the first direction, which can close the other end of the channel through the second connecting portion in the case of baffle retraction, thereby further reducing the backflow of air flow.

[0010] Optionally, in some embodiments of the present application, a stop block is arranged, the stop block is connected to the side of the third section facing the base, and the projection of the stop block overlaps the projection of the opening in the first direction. When the air flow flows towards the cabinet, the stop block limits the position of the shielding member and prevents the shielding member from opening the opening, thereby reducing the backflow of air flow from the opening into the cabinet.

[0011] Optionally, in some embodiments of the present application, the opening comprises oppositely arranged first and second edges, the shielding member is connected to the first edge, and the projection of the stop block overlaps the projection of the second edge in the first direction, which is conducive to limiting the position of the shielding member.

[0012] Optionally, in some embodiments of the present application, a cover is arranged, and the cover is connected to the base. The base comprises a first fixing portion, the cover comprises a second fixing portion, the connecting shaft connects the first fixing portion and the second fixing portion, and the first rotating member, the baffle and the second rotating member are located between the first fixing portion and the second fixing portion.

[0013] Optionally, in some embodiments of the present application, the center of the baffle is the same as the center of gravity of the baffle, and the center of the baffle is the same as the center of the connecting shaft, which is conducive to the rotation of the baffle on the connecting shaft and facilitates the opening or closing of the channel.

[0014] Embodiments of the present application provide a cabinet, which comprises a cabinet body, a processing module, a fan module and a backflow prevention module according to any one of the embodiments described above. The processing module and the fan module are arranged in the cabinet body in the first direction, and the backflow prevention module is arranged between the fan module and the cabinet body in the first direction.

[0015] The above-mentioned backflow prevention module and the case are opened by wind force, so that the wind force drives the baffle to rotate and drives the second section to move in the first direction, which can increase the distance between the first section and the second section, and the wind force is discharged through the channel between the first section and the second section, thereby playing a heat dissipation role. The baffle is elastically arranged in the first direction, when the fan module has no wind force output, the second section is driven to move in the direction opposite to the first direction by the elasticity, so that the second section is close to the first section, the channel between the first section and the second section is closed, the airflow backflow and airflow turbulence are reduced, the influence on the heat dissipation and cooling efficiency of the system in the case is reduced, and the external dust and the like entering the case is also reduced. Especially when part of the fan module fails, the airflow is more likely to enter the case, and the backflow prevention module of the present application can reduce the occurrence of airflow backflow. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure schematic diagram of the backflow prevention module in an embodiment is shown.

[0017] Figure 2 A structure schematic diagram of the backflow prevention module in another view of an embodiment is shown.

[0018] Figure 3 An exploded schematic diagram of the backflow prevention module in an embodiment is shown.

[0019] Figure 4 An exploded schematic diagram of the backflow prevention module in another view of an embodiment is shown.

[0020] Figure 5 A partial structure schematic diagram of the backflow prevention module in an embodiment is shown.

[0021] Figure 6 A structure schematic diagram of the baffle, the first rotating piece and the second rotating piece in an embodiment is shown.

[0022] Figure 7 A structure schematic diagram of the baffle in an open state in an embodiment is shown.

[0023] Figure 8 A structure schematic diagram of the case in an embodiment is shown.

[0024] MAIN ELEMENT SYMBOL EXPLANATION

[0025] Backflow prevention module 100

[0026] Base 10

[0027] Connecting shaft 11

[0028] Connecting piece 12

[0029] First body 13

[0030] First through hole 131

[0031] Connection hole 132

[0032] First fixed part 14

[0033] First fixing member 141

[0034] First support member 142

[0035] Extension wall 15

[0036] Clamping member 16

[0037] Baffle 20

[0038] Channel 20a

[0039] First section 21

[0040] First end 211

[0041] Second section 22

[0042] Second end 221

[0043] Third section 23

[0044] Opening 231

[0045] First edge 231a

[0046] Second edge 231b

[0047] Shield 232

[0048] First rotating member 30

[0049] First rotating part 31

[0050] First connecting part 32

[0051] First recess 321

[0052] Second rotating member 40

[0053] Second rotating part 41

[0054] Second connecting part 42

[0055] Second recess 421

[0056] Cover body 50

[0057] Second main body 51

[0058] Second through hole 511

[0059] Connection opening 512

[0060] Second fixing portion 52

[0061] Second fixing member 521

[0062] Groove 5211

[0063] Second support member 522

[0064] Stopper 60

[0065] Cabinet 200

[0066] Fan module 210

[0067] Cabinet body 220

[0068] Processing module 230

[0069] First direction X

[0070] Second direction Y

[0071] The following detailed embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0072] The following detailed embodiments are exemplary and non-limiting, which are intended to provide a basic understanding of the present application and are not intended to identify key or critical elements or limit the scope of protection. As long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

[0073] When a component is considered to be "provided on" another component, it can be directly provided on the other component or a middle component can exist at the same time. When a component is considered to be "connected" to another component, it can be directly connected to the other component or a middle component can exist at the same time.

[0074] It can be understood that the term "vertical" is used to describe the ideal state between two components. In the actual production or use state, there can be an approximate or equal state between the two components. For example, in combination with numerical description, vertical can refer to the included angle between two straight lines in the range of 90°±10°, vertical can also refer to the dihedral angle between two planes in the range of 90°±10°, and vertical can also refer to the included angle between a straight line and a plane in the range of 90°±10°. The two components described as "vertical" can not be absolute straight lines or planes, but can be approximately straight lines or planes, and the overall extension direction can be considered as a straight line or a plane from a macroscopic point of view.

[0075] Unless otherwise defined, the term "a plurality of" used herein to describe the number of components specifically refers to two or more of the components.

[0076] Embodiments of the present application provide a reverse wind module for installation in a fan module, comprising a base, a spiral baffle, a first rotating member and a second rotating member. The base comprises a connecting shaft and a connecting member fixed to the connecting shaft; the baffle comprises a first section and a second section at the head and tail, and a third section connecting the first section and the second section, the first section and the second section are arranged along a first direction, and the third section comprises an opening and a shielding member elastically connected to the opening, and the baffle is elastically arranged along the first direction. The first rotating member is rotationally connected to the connecting member, and the first rotating member is connected to the first section. The second rotating member is rotationally connected to the connecting shaft and movably arranged along the first direction, and the second rotating member is connected to the second section. The shielding member is configured to be blown by the wind of the fan module and open the opening, the wind drives the baffle to rotate, and the second section is configured to be driven by the wind to move along the first direction and open a channel connecting the outside between the first section and the second section.

[0077] The reverse wind module of the present application opens the opening by wind, so that the wind drives the baffle to rotate and drives the second section to move along the first direction, which can increase the distance between the first section and the second section, and the wind is discharged through the channel between the first section and the second section. By elastically arranging the baffle along the first direction, when the fan module has no wind output, the second section is driven to move along the direction opposite to the first direction, so that the second section is close to the first section, the channel between the first section and the second section is closed, the airflow backflow and airflow turbulence are reduced, the influence on the heat dissipation and cooling efficiency of the system in the case is reduced, and the external dust and the like entering the case is also reduced. Especially when the fan module fails, the airflow is more likely to enter the case, and the reverse wind module of the present application can reduce the occurrence of airflow backflow.

[0078] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0079] Please refer to Figures 1 to 8 In an embodiment of the present application, a reverse wind module 100 is provided for installation in a fan module 210, and the reverse wind module 100 comprises a base 10, the base 10 comprises a connecting shaft 11 and a connecting member 12, and the connecting member 12 is fixed to the connecting shaft 11. Optionally, the connecting member 12 comprises a bearing.

[0080] In some embodiments, the reverse wind module 100 comprises a spiral baffle 20, the baffle 20 comprises a first section 21 and a second section 22 at the head and tail, and a third section 23 connecting the first section 21 and the second section 22. The first section 21 and the second section 22 are arranged along a first direction X. The baffle 20 is elastically arranged along the first direction X.

[0081] In some embodiments, the anti-wind module 100 comprises a first rotating member 30, the first rotating member 30 is rotationally connected to the connecting member 12, and the first rotating member 30 is connected to the first section 21.

[0082] In some embodiments, the anti-wind module 100 comprises a second rotating member 40, the second rotating member 40 is rotationally connected to the connecting shaft 11 and movably arranged on the connecting shaft 11 along the first direction X, and the second rotating member 40 is connected to the second section 22.

[0083] In some embodiments, the third section 23 comprises an opening 231 and a shielding member 232, the shielding member 232 is elastically connected to the opening 231. The shielding member 232 is configured to be blown by the wind of the fan module 210 and open the opening 231, the wind drives the baffle 20 to rotate, and drives the second section 22 to move along the first direction X, and opens the channel 20a connecting the outside between the first section 21 and the second section 22.

[0084] The anti-wind module 100 of the present application opens the opening 231 by wind, so that the wind drives the baffle 20 to rotate, and drives the second section 22 to move along the first direction X, which can increase the distance between the first section 21 and the second section 22, and the wind is discharged through the channel 20a between the first section 21 and the second section 22. By elastically arranging the baffle 20 along the first direction X, when the fan module 210 has no wind power output, the second section 22 is driven to move along the direction opposite to the first direction X by elasticity, so that the second section 22 is close to the first section 21, and the channel 20a between the first section 21 and the second section 22 is closed, reducing the backflow of air flow and air flow turbulence, reducing the influence on the cooling efficiency of the system in the case, and also reducing the entry of external dust into the case. Especially when the fan module 210 fails, the air flow is more likely to enter the case, and the anti-wind module 100 of the present application can reduce the occurrence of air flow backflow.

[0085] In some embodiments, the second section 22 and the third section 23 have elasticity along the first direction X. The second section 22 and the third section 23 can be arranged in an elastic manner along the first direction X.

[0086] In some embodiments, the first section 21, the second section 22 and the third section 23 have elasticity along the first direction X. The first section 21, the second section 22 and the third section 23 can be arranged in an elastic manner along the first direction X.

[0087] Please refer to Figure 3 and Figure 4 In some embodiments, the base 10 comprises a first main body 13, and the first main body 13 is provided with a first through hole 131. The first main body 13 is located on the side close to the fan module 210. The wind blows to the baffle 20 through the first through hole 131.

[0088] In some embodiments, the first body 13 is provided with a plurality of connecting holes 132, and the backflow prevention module 100 is connected with the fan module 210 by fasteners. Optionally, the fasteners include screws.

[0089] In some embodiments, the base 10 includes a first fixing portion 14, the first fixing portion 14 is connected with the first body 13 and is located at the first through hole 131, and the connecting shaft 11 is fixed to the first fixing portion 14.

[0090] In some embodiments, the first fixing portion 14 includes a first fixing member 141 and a plurality of first supporting members 142, one end of each of the first supporting members 142 is fixed to the first body 13, the other end is fixedly connected with the first fixing member 141, and the connecting shaft 11 is fixedly connected with the first fixing member 141.

[0091] In some embodiments, the first fixing member 141, the connecting shaft 11 and the first through hole 131 have the same center.

[0092] Please refer to Figure 5 In some embodiments, the base 10 includes an extending wall 15, the extending wall 15 protrudes from the first body 13 towards one side of the baffle 20 along the first direction X.

[0093] In some embodiments, along the second direction Y, a projection of at least part of the baffle 20 is located within a projection of the extending wall 15, the extending wall 15 can guide the wind to blow towards the baffle 20 along the first direction X, which is conducive to opening the opening 231 and driving the baffle 20 to rotate, and connecting the channel 20a between the first section 21 and the second section 22 with the outside.

[0094] When the channel 20a is closed, along the second direction Y, a projection of the baffle 20 is located within a projection of the extending wall 15.

[0095] When the channel 20a is opened, along the second direction Y, a projection of part of the baffle 20 is located within a projection of the extending wall 15.

[0096] Please refer to Figure 3 and Figure 4 In some embodiments, the backflow prevention module 100 includes a cover 50, and the cover 50 is connected with the base 10. The cover 50 includes a second body 51, the second body 51 is provided with a second through hole 511, and the wind passing through the channel 20a blows towards the outside from the second through hole 511. The cover 50 can further guide the wind to blow towards the outside along the first direction X, reducing the entry of dust and the like.

[0097] In some embodiments, the base 10 includes a clamping member 16, the second body 51 is provided with a connecting opening 512, when the cover 50 is installed on the base 10, the clamping member 16 is arranged in the connecting opening 512,

[0098] In some embodiments, the second body 51 is adhesively connected to the first body 13.

[0099] In some embodiments, the cover 50 comprises a second fixing portion 52, which is connected to the second body 51 and located in the second through hole 511, and the connecting shaft 11 is connected to the second fixing portion 52.

[0100] In some embodiments, the second fixing portion 52 comprises a second fixing member 521 and a plurality of second supporting members 522, one end of each second supporting member 522 is fixed to the second body 51, and the other end is fixedly connected to the second fixing member 521, and the connecting shaft 11 is connected to the second fixing member 521.

[0101] In some embodiments, the second fixing member 521 is provided with a groove 5211 on the side facing the base 10, and the connecting shaft 11 is arranged in the groove 5211, which is beneficial to fixing the position of the connecting shaft 11, improving the stability of the baffle 20 during rotation, reducing the offset of the rotation center of the baffle 20, and causing the baffle 20 to touch the cover 50, so that the channel 20a cannot be opened or closed.

[0102] In some embodiments, the first fixing member 141, the connecting shaft 11, the first through hole 131, the second fixing member 521, and the second through hole 511 have the same center.

[0103] Please refer to Figure 4 and Figure 5 In some embodiments, the anti-wind module 100 comprises a stop block 60 connected to the side of the third segment 23 facing the base 10. In the first direction X, the projection of the stop block 60 overlaps the projection of the opening 231. When the fan module 210 is not working, the shielding member 232 is reset and opens and closes the opening 231. When the airflow flows towards the cabinet, the stop block 60 limits the shielding member 232, preventing the shielding member 232 from opening the opening 231, and reducing the backflow of the airflow from the opening 231 to the cabinet. Optionally, the stop block 60 is adhesively connected to the side of the third segment 23 facing the base 10.

[0104] In some embodiments, the opening 231 comprises oppositely arranged first and second edges 231a and 231b, and the shielding member 232 is connected to the first edge 231a. In the first direction X, the projection of the stop block 60 overlaps the projection of the second edge 231b, which is beneficial to limiting the position of the shielding member 232.

[0105] In some embodiments, part of the shielding member 232 is connected to the first edge 231a, which facilitates the wind to blow the shielding member 232 and open the opening 231.

[0106] In some embodiments, the opening 231 has a trapezoidal structure, the first edge 231a is located at the top edge or the bottom edge of the trapezoid, and the space occupied by the first direction X after the blocking piece 232 opens the opening 231 is beneficial to reduce the thickness of the anti-wind module 100.

[0107] In some embodiments, the thickness d of the anti-wind module 100 along the first direction X is 12mm≤d≤15mm. Optionally, d can be any one of 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, 15mm.

[0108] In some embodiments, the third section 23 includes three openings 231, and the extension line of the first edge 231a of each opening 231 passes through the center of the baffle 20, which is beneficial to the rotation of the baffle 20 driven by the wind.

[0109] Please refer to Figure 3 , Figure 4 , Figure 6 and Figure 7 In some embodiments, the center of the baffle 20 is the same as the center of gravity of the baffle 20, and the center of the baffle 20 is the same as the center of the connecting shaft 11, which is beneficial to the rotation of the baffle 20 on the connecting shaft 11 and facilitates the opening or closing of the passage 20a.

[0110] In some embodiments, the first rotating part 30 includes a first rotating part 31 and a first connecting part 32, and the first rotating part 31 is rotationally connected to the connecting part 12. The first connecting part 32 connects the first rotating part 31, and the first connecting part 32 connects the first section 21.

[0111] In some embodiments, the first connecting part 32 connects the side of the first section 21 away from the second section 22 along the first direction X.

[0112] In some embodiments, the first section 21 includes a first end 211, and the first end 211 is located at one end of the first section 21 away from the third section 23. The first connecting part 32 connects the first end 211.

[0113] In some embodiments, the first connecting part 32 is provided with a first recess 321, and the first end 211 is arranged in the first recess 321, which is beneficial to the stable rotation of the baffle 20 through the first rotating part 30 and reduces the occurrence of the rotation center deviation of the baffle 20. Optionally, the first end 211 is clamped in the first recess 321. Optionally, the first end 211 is bonded to the first recess 321.

[0114] In some embodiments, the second rotating part 40 includes a second rotating part 41 and a second connecting part 42, and the second rotating part 41 is sleeved on the connecting shaft 11. The second connecting part 42 connects the second rotating part 41, and the second connecting part 42 connects the second section 22.

[0115] In some embodiments, the second connecting portion 42 connects a side of the second section 22 facing away from the first section 21 along the first direction X.

[0116] In some embodiments, the second section 22 comprises a second end portion 221, the second end portion 221 is located at an end of the second section 22 facing away from the third section 23, and the second connecting portion 42 connects the second end portion 221.

[0117] In some embodiments, the second connecting portion 42 is provided with a second recess portion 421, and the second end portion 221 is arranged in the second recess portion 421, which is conducive to stable rotation of the baffle 20 by the second rotating member 40 and reduces the occurrence of rotation center deviation of the baffle 20. Optionally, the second end portion 221 is clamped in the second recess portion 421. Optionally, the second end portion 221 is bonded to the second recess portion 421.

[0118] In some embodiments, along the first direction X, a part of the first connecting portion 32 is located between the first section 21 and the second section 22, which can close one end of the channel 20a by the first connecting portion 32 in the case of retraction of the baffle 20, thereby reducing the backflow of air flow.

[0119] In some embodiments, along the first direction X, a part of the second connecting portion 42 is located between the first section 21 and the second section 22, which can close the other end of the channel 20a by the second connecting portion 42 in the case of retraction of the baffle 20, thereby reducing the backflow of air flow.

[0120] In some embodiments, the connecting shaft 11, the connecting member 12, the first rotating member 30, and the second rotating member 40 have the same center.

[0121] Please refer to Figure 8 An embodiment of the present application provides a case 200, which comprises a fan module 210, a case main body 220, a processing module 230, and the backflow prevention module 100 in any one of the above embodiments. The processing module 230 and the fan module 210 are arranged in the case main body 220 along a first direction X. Along the first direction X, the backflow prevention module 100 is arranged between the fan module 210 and the case main body 220.

[0122] In some embodiments, along the first direction X, the distance h between the fan module 210 and the case main body 220 is 12mm≤h≤15mm. Optionally, h can be any one of 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, and 15mm.

[0123] In some embodiments, h is equal to the thickness d of the backflow prevention module 100, which is conducive to reducing the space occupied by the case 200.

[0124] Those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the spirit and essence of this application fall within the scope of this application's disclosure.

Claims

1. A backflow prevention module for installation on a fan module, characterized in that, include: The base includes a connecting shaft and a connector, wherein the connector is fixed to the connecting shaft; A spiral baffle includes a first section and a second section located at the beginning and end, and a third section connecting the first section and the second section. The first section and the second section are arranged along a first direction. The third section includes an opening and a blocking member. The blocking member is elastically connected to the opening. The baffle is elastically arranged along the first direction. A first rotating component is rotatably connected to the connecting component, and the first rotating component is connected to the first segment; The second rotating component is rotatably connected to the connecting shaft and is movably disposed along the first direction; the second rotating component is connected to the second section. The shield is configured to be blown by the wind force of the fan module and open the opening, the wind force drives the baffle to rotate, and the second section is configured to be moved along the first direction by the wind force and open the channel connecting the first section and the second section to the outside.

2. The anti-wind module as described in claim 1, characterized in that, The first rotating member includes a first rotating part and a first connecting part, wherein the first rotating part is rotatably connected to the connecting member; The first connecting part is connected to the first rotating part, and the first connecting part is connected to the first section.

3. The anti-wind module as described in claim 2, characterized in that, The first segment includes a first end, which is located at the end of the first segment opposite to the third segment; The first connecting portion has a first recess, and the first end portion is located in the first recess.

4. The anti-wind module as described in claim 2, characterized in that, The second rotating member includes a second rotating part and a second connecting part. The second rotating part is sleeved on the connecting shaft. The second section includes a second end, which is located at one end of the second section opposite to the third section. The second connecting part is connected to the second end.

5. The anti-wind module as described in claim 4, characterized in that, Along the first direction, a portion of the first connecting part is located between the first segment and the second segment; Or, along the first direction, a portion of the second connecting portion is located between the first segment and the second segment.

6. The anti-wind module as described in claim 1, characterized in that, Includes a stop block, which connects to the side of the third section facing the base, and the projection of the stop block overlaps with the projection of the opening along the first direction.

7. The anti-wind module as described in claim 6, characterized in that, The opening includes a first edge and a second edge that are arranged opposite to each other. The blocking member is connected to the first edge. Along the first direction, the projection of the blocking member overlaps with the projection of the second edge.

8. The anti-wind module as described in claim 3, characterized in that, Includes a cover body, the cover body being connected to the base; The base includes a first fixing part, the cover includes a second fixing part, the connecting shaft connects the first fixing part and the second fixing part, and the first rotating member, the baffle and the second rotating member are located between the first fixing part and the second fixing part.

9. The anti-wind module as described in claim 1, characterized in that, The center of the baffle is the same as the center of gravity of the baffle, and the center of the baffle is the same as the center of the connecting shaft.

10. A chassis, comprising a chassis body, a processing module, a fan module, and a backdraft prevention module as described in any one of claims 1 to 9, wherein the processing module and the fan module are arranged along a first direction on the chassis body, and the backdraft prevention module is disposed between the fan module and the chassis body along the first direction.

Images