Dustproof heat dissipation server case

Abstract

The dustproof heat dissipation server case comprises a case body, the rear side of the case body is fixedly connected with a plurality of dust blocking plates, wiring ports are formed below the dust blocking plates, the inner walls of the two sides of the case body are fixedly connected with fixing bins, the side walls of the fixing bins are fixedly connected with a plurality of supporting blocks, and air cooling ports can be formed above the supporting blocks. A supporting plate is placed at the top of the supporting block, the rear end face of the supporting plate is fixedly connected with a wire arrangement plate, a plurality of wire arrangement grooves are formed in the top of the wire arrangement plate, an air cooling assembly is installed at the top of an inner cavity of the box body, a plurality of air inlet holes are formed in the top of the air cooling assembly, a plurality of air outlets are formed in the side walls of the bottom ends of the two sides of the box body, and first clamping blocks are arranged on the two sides of the air inlet holes; a first dustproof net is installed between the first clamping blocks, second clamping blocks are arranged above and below the air outlet, and a second dustproof net is installed between the second clamping blocks. According to the utility model, the heat dissipation and dustproof effects are good, and cables can be arranged and fixed so as to avoid disordered wiring and winding.

Description

Technical Field

[0001] The utility model belongs to the technical field of server chassis, in particular to a dustproof and heat-dissipating server chassis. Background Art

[0002] A server chassis is a shell used to hold and protect server hardware components. Compared with general desktop chassis, server chassis are specially designed to meet the requirements of high performance, high reliability and high scalability, and are suitable for various professional and enterprise-level application environments.

[0003] There are many types of server chassis on the market. For example, a server chassis is disclosed on the China Patent Network, and its publication number is CN210515163U. The USB interface of this server chassis is easy to use, but there are some defects and shortcomings that need to be improved: (1) In order to improve the heat dissipation performance, some existing server chassis structures generally install fans in the chassis to dissipate heat by accelerating air flow. This heat dissipation method is inefficient and has a small coverage area. It is difficult for cold air to effectively flow through all server hardware, and thus it is unable to fully absorb and take away the surface heat of each server hardware; (2) Due to the structural design of some existing server chassis, it is difficult to effectively organize and fix the cables connected to each server hardware. The cable wiring is relatively messy, which not only easily causes cable entanglement and affects the normal operation of the server hardware, but also hinders and disrupts the air flow inside the chassis, thereby affecting heat dissipation; (3) In order to facilitate heat dissipation and cable connection, some existing server chassis have multiple ventilation holes and wiring ports on the chassis surface. This allows dust from the external air to enter the chassis through these ventilation holes and wiring ports and adhere to the surface of the server hardware, thereby affecting the heat dissipation and service life of the server hardware. Therefore, in view of the above problems, the dust-proof and heat-dissipating server chassis provided by the present invention is of great significance. Utility Model Content

[0004] The utility model provides a server chassis with dust-proof and heat-dissipating function. Through the air cooling component, the wind force can be used to accelerate the air flow speed around each server hardware on the support plate to achieve the heat dissipation effect. Through multiple air cooling ports, the coverage of the air cooling component can be effectively expanded, so that the cold air can flow through all the server hardware, thereby greatly improving the heat dissipation efficiency. The surface heat of the server hardware can be fully absorbed by the heat conductive sheet, and diffused to the bottom of the support plate through each air guide hole under the action of wind force, thereby effectively taking away the surface heat of the server hardware, and then further enhancing the heat dissipation effect and efficiency. Through each cable management groove on the cable management plate, the cables on the server hardware can be arranged and fixed to ensure that the cable wiring in the box is neat, thereby effectively avoiding the wiring disorder and entanglement. The dust shield can play the role of blocking dust, so that dust can enter the box from the wiring port after effectively falling, and the first dustproof net and the second dustproof net can respectively block the dust at the air inlet and the air outlet, thereby effectively avoiding the dust from entering the inside of the box and adhering to the surface of the server hardware. In summary, the problems in the background technology are solved.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a dustproof and heat-dissipating server case, comprising a case body, a plurality of feet are fixedly connected to the bottom of the case body, a case door is installed on the front side, a plurality of dust shields are fixedly connected to the rear side of the case body, a wiring port is provided below each of the dust shields, a fixed bin is fixedly connected to the inner walls on both sides of the case body, a plurality of support blocks are fixedly connected to the side walls of the fixed bin, a wind cooling port is provided above each of the support blocks, a support plate is placed on the top of each of the support blocks, a wire management board is fixedly connected to the rear end face of the support plate, the side face of the wire management board is L-shaped, and a plurality of wire management ports are provided on the top of the wire management board. A wire trough, an air cooling component is installed on the top of the inner cavity of the box, a plurality of air inlet holes are opened on the top, and a plurality of air outlets are opened on the bottom side walls of both sides of the box, the air inlet holes are distributed in a linear array, and a first card block is arranged on both sides thereof, the bottom of the first card block is fixedly connected to the top of the box, and a first dustproof net is installed between the first card blocks, the air outlet is rectangular and is equidistantly linearly distributed along the height direction of the box, and a second card block is arranged above and below the air outlet, one side of the second card block is fixedly connected to the side wall of the box, and a second dustproof net is installed between the second card blocks;

[0007] The air cooling component includes a blast chamber, which is installed on the top inner wall of the box body and is located directly below the air inlet. A fan is installed in the blast chamber, and air ducts are installed on both sides of the blast chamber. One end of the air duct is connected to the inner cavity of the blast chamber, and the other end of the air duct is installed on the top of the fixed chamber and is connected to the inner cavity of the fixed chamber.

[0008] Furthermore, a plurality of positioning columns are fixedly connected to the top of the support block, and a plurality of positioning holes are opened on the surface of the support plate. The number of the positioning holes is the same as that of the positioning columns, the diameters are equal, and the center of each positioning hole corresponds one-to-one to the center of each positioning column.

[0009] Furthermore, the bottom of the support block is fixedly connected with a plurality of reinforcing ribs, the reinforcing ribs are triangular in shape, one side of which is fixedly connected to the side wall of the fixed bin, and the reinforcing ribs are equidistantly linearly distributed along the length direction of the support block.

[0010] Furthermore, cushion columns are fixedly connected to the four corners of the top of the support plate, and the surfaces of the cushion columns are engraved with herringbone anti-slip patterns.

[0011] Furthermore, a plurality of heat-conducting plates are provided on the top surface of the support plate, and a plurality of air guide holes are opened on the surface of the support plate. The air guide holes are rectangular hole structures and are equidistantly linearly distributed along the length direction of the support plate. The heat-conducting plates are long strips, and each of the heat-conducting plates and the air guide holes are staggered with each other.

[0012] Furthermore, the cable management grooves are U-shaped groove structures and are equidistantly linearly distributed along the length direction of the cable management plate, and a layer of anti-wear pads is provided on the bottom surface of each cable management groove.

[0013] Furthermore, the first card block and the second card block are both L-shaped, and the inner wall heights thereof are respectively equal to the thicknesses of the first dustproof net and the second dustproof net, and the inner wall spacing between the first card block and the second card block is respectively equal to the widths of the first dustproof net and the second dustproof net.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) When a dustproof and heat-dissipating server chassis of the utility model is in use, the air cooling component can utilize wind force to accelerate the air flow speed around each server hardware on the tray to achieve the effect of heat dissipation. The coverage of the air cooling component can be effectively expanded through multiple air cooling ports, so that cold air can flow through all server hardware, thereby greatly improving the heat dissipation efficiency. The surface heat of the server hardware can be fully absorbed by the heat conductive sheet and diffused to the bottom of the tray through each air guide hole under the action of wind force, thereby effectively taking away the surface heat of the server hardware, thereby further enhancing the heat dissipation effect and efficiency.

[0016] (2) When a dustproof and heat-dissipating server chassis of the utility model is in use, the cables on the server hardware can be sorted and fixed through the various cable management grooves on the cable management board to ensure that the cables in the chassis are neatly wired, thereby effectively avoiding messy and tangled wiring;

[0017] (3) When a dustproof and heat-dissipating server chassis of the utility model is in use, the dust shield plate can play a role in shielding dust, so that dust can effectively enter the chassis from the wiring port after falling, and the first dust shield net and the second dust shield net can respectively block dust at the air inlet and the air outlet, thereby effectively preventing dust from entering the interior of the chassis and adhering to the surface of the server hardware.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic structural diagram of a dust-proof and heat-dissipating server chassis of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the box body in the utility model;

[0022] Figure 3 It is a rear view of the box body in the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the fixed bin in the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the middle support plate of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the air cooling component in the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the first dustproof net in the utility model;

[0027] Figure 8 It is a schematic structural diagram of the second dustproof net in the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Box body; 2. Foot pads; 3. Box door; 4. Dust shield; 5. Wiring port; 6. Fixed compartment; 7. Support block; 8. Air cooling port; 9. Support plate; 10. Cable management plate; 11. Cable management slot; 12. Air inlet; 13. Air outlet; 14. First clamping block; 15. First dust screen; 16. Second clamping block; 17. Second dust screen; 18. Blowing compartment; 19. Fan; 20. Air duct; 21. Positioning column; 22. Positioning hole; 23. Reinforcement rib; 24. Cushion column; 25. Heat conducting sheet; 26. Air guide hole; 27. Anti-wear pad. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0031] In the description of the present invention, it should be understood that terms such as "relative", "one end", "inside", "lateral", "end", "two ends", "both sides", "front", "one end face", "the other end face" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] See also Figure 1-8As shown, a dustproof and heat-dissipating server case of the utility model comprises a case body 1, a plurality of feet 2 are fixedly connected to the bottom of the case body 1, a case door 3 is installed on the front side thereof, a glass window is installed on the case door 3, a plurality of dust shielding plates 4 are fixedly connected to the rear side of the case body 1, a wiring port 5 is provided below each of the dust shielding plates 4, cables connected to the server hardware can be connected to an external power supply and other equipment through the wiring port 5, and the dust shielding plates 4 can play a role in blocking dust, so that dust can effectively enter the case body 1 from the wiring port 5 after falling, and both sides of the case body 1 The inner wall is fixedly connected with a fixed bin 6, and the side wall of the fixed bin 6 is fixedly connected with a plurality of support blocks 7. An air cooling port 8 can be opened on the top of each support block 7, and a support plate 9 is placed on the top of each support block 7. The support plate 9 is used to place and install server hardware. The rear end face of the support plate 9 is fixedly connected with a wire management plate 10. The side of the wire management plate 10 is L-shaped, and a plurality of wire management grooves 11 are opened on the top. When the server hardware is installed on the support plate 9, the cables connected to each server hardware can be passed through and fitted on the corresponding management grooves. In the wire trough 11, the cables can be arranged and fixed through each wire trough 11 to ensure that the cables in the box 1 are neatly wired, thereby effectively avoiding the wiring disorder and entanglement. An air cooling component is installed on the top of the inner cavity of the box 1, and a plurality of air inlet holes 12 are opened on the top, and a plurality of air outlets 13 are opened on the bottom side walls of both sides of the box 1. The air inlet holes 12 are distributed in a linear array, and a first card block 14 is arranged on both sides. The bottom of the first card block 14 is fixedly connected to the top of the box 1, and a plurality of air outlets 13 are arranged between the first card blocks 14. A first dustproof net 15 is installed, the air outlet 13 is rectangular and is equidistantly linearly distributed along the height direction of the box body 1, and second clamping blocks 16 are arranged above and below the air outlet 13, one side of the second clamping block 16 is fixedly connected to the side wall of the box body 1, and a second dustproof net 17 is installed between the second clamping blocks 16. The first dustproof net 15 and the second dustproof net 17 can respectively block dust at the air inlet 12 and the air outlet 13, thereby effectively preventing dust from entering the interior of the box body 1 and adhering to the surface of the server hardware;

[0033] The air cooling component includes an air blast bin 18, which is installed on the top inner wall of the box body 1 and is located directly below the air inlet 12. A fan 19 is installed in the air blast bin 18, and air ducts 20 are installed on both sides of the air blast bin 18. One end of the air duct 20 is connected to the inner cavity of the air blast bin 18, and the other end of the air duct 20 is installed on the top of the fixed bin 6 and is connected to the inner cavity of the fixed bin 6. Air blowing can be carried out by driving the fan 19, and the air blown out by the fan 19 can be introduced into the fixed bin 6 through the air duct 20. After the air enters the fixed bin 6, it can be blown to each support plate 9 through each air cooling port 8. At this time, the wind force can be used to accelerate the air flow speed around each server hardware on the support plate 9 to achieve the effect of heat dissipation. The coverage of the air cooling component can be effectively expanded through multiple air cooling ports 8, so that cold air can flow through all server hardware, thereby greatly improving the heat dissipation efficiency.

[0034] Among them, a plurality of positioning columns 21 are fixedly connected to the top of the support block 7, and a plurality of positioning holes 22 are opened on the surface of the support plate 9. The number of the positioning holes 22 and the positioning columns 21 are the same, the diameters are equal, and the center of each positioning hole 22 corresponds to the center of each positioning column 21. When the support plate 9 is placed on the support block 7, each positioning column 21 can be aligned with and pass through the corresponding positioning hole 22. At this time, the mutual cooperation between the positioning column 21 and the positioning hole 22 can play a positioning role to avoid the placement position of the support plate 9 from being offset.

[0035] Among them, the bottom of the support block 7 is fixedly connected with a plurality of reinforcing ribs 23, the reinforcing ribs 23 are triangular, one side of which is fixedly connected to the side wall of the fixed bin 6, and the reinforcing ribs 23 are equidistantly linearly distributed along the length direction of the support block 7. The support block 7 can be supported and reinforced by the reinforcing ribs 23, so as to improve the structural firmness of the support block 7, thereby preventing the support block 7 from being deformed after being subjected to force.

[0036] Among them, pads 24 are fixedly connected at the four corners of the top of the support plate 9. The surface of the pads 24 is engraved with a herringbone anti-skid pattern. The pads 24 are made of elastic materials such as rubber. When the server hardware is placed on the support plate 9, each pad 24 can be placed on the bottom of the server hardware, so that a certain gap is left between the bottom of the server hardware and the support plate 9 to facilitate air flow, thereby facilitating heat dissipation. The use of anti-skid pads can increase the friction between the pads 24 and the server hardware to play an anti-skid role, thereby preventing the server hardware from slipping and displacement.

[0037] Among them, a plurality of heat conductive sheets 25 are arranged on the top surface of the pallet 9, and a plurality of air guide holes 26 are opened on the surface of the pallet 9. The air guide holes 26 are rectangular hole structures and are equidistantly linearly distributed along the length direction of the pallet 9. The heat conductive sheets 25 are long strips, and each heat conductive sheet 25 and the air guide holes 26 are staggered with each other. The heat conductive sheets 25 are made of metal materials with strong thermal conductivity such as copper sheets. When the server hardware is installed on the pallet 9, each heat conductive sheet 25 can fully absorb the surface heat of the server hardware, and diffuse it to the bottom of the pallet 9 through each air guide hole 26 under the action of wind, thereby effectively taking away the surface heat of the server hardware, thereby further enhancing the heat dissipation effect and efficiency.

[0038] Among them, the cable management trough 11 is a U-shaped trough structure and is equidistantly linearly distributed along the length direction of the cable management plate 10, and a layer of anti-wear pad 27 is provided on the bottom surface of each cable management trough 11. The anti-wear pad 27 is made of elastic materials such as rubber and is fixed by glue or other means. When the cable is fitted in the cable management trough 11, the anti-wear pad 27 can play an anti-wear protection role to avoid direct contact between the cable and the inner wall of the cable management trough 11 and cause wear.

[0039] Among them, the first card block 14 and the second card block 16 are both L-shaped, and the inner wall heights thereof are respectively equal to the thicknesses of the first dustproof net 15 and the second dustproof net 17, and the inner wall spacings of the first card block 14 and the second card block 16 are respectively equal to the widths of the first dustproof net 15 and the second dustproof net 17. The first dustproof net 15 and the second dustproof net 17 can be respectively fixed between the first card block 14 and the second card block 16 by plugging. After long-term use, the first dustproof net 15 and the second dustproof net 17 can be respectively pulled out from between the first card block 14 and the second card block 16 so as to clean the first dustproof net 15 and the second dustproof net 17, thereby avoiding dust clogging the first dustproof net 15 and the second dustproof net 17 and affecting ventilation.

[0040] The circuits, electronic components and chip modules involved in the utility model are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0041] The standard parts used in the application documents can all be purchased from the market. All the components in this application document can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art. The electrical components appearing in this article are all electrically connected to the external main controller and 220V AC power, and the main controller can be a conventional known device that controls the LED lamp body, etc.

[0042] The working principle of the utility model is:

[0043] When the utility model is in use, the server hardware can be placed and installed on each support plate 9, and the cables connected to the server hardware can be connected to an external power supply and other equipment through the wiring port 5 on the rear end surface of the box body 1. A dust shield 4 is arranged above each wiring port 5, which can play a role of dust shielding, so that dust can effectively enter the box body 1 from the wiring port 5 after falling. When it is necessary to dissipate heat for the server hardware in the box body 1, the fan 19 can be driven to blow air, and the wind blown out by the fan 19 can be introduced into the fixed bin 6 through the air duct 20. After the wind enters the fixed bin 6, it can be blown to each support plate 9 through each air cooling port 8. At this time, the wind force can be used to accelerate the air flow speed around each server hardware on the support plate 9 to achieve the effect of heat dissipation. The coverage of the air cooling component can be effectively expanded through multiple air cooling ports 8, so that the cold air can flow through all server hardware, thereby greatly improving the heat dissipation efficiency. The four corners of the top of the support plate 9 are fixedly connected with pads 24. When the server hardware is placed on the support plate 9, each pad 24 can be padded at the bottom of the server hardware, so that the server hardware A certain gap is left between the bottom of the component and the support plate 9 to facilitate the flow of air, which is beneficial to heat dissipation. At the same time, the heat conducting sheets 25 on the surface of the support plate 9 can fully absorb the surface heat of the server hardware, and diffuse it to the bottom of the support plate 9 through the air guide holes 26 under the action of wind, so as to effectively take away the surface heat of the server hardware, thereby further enhancing the heat dissipation effect and efficiency. When the server hardware is installed on the support plate 9, the cables connected to each server hardware can be passed through and fitted into the corresponding cable management grooves 11. At this time, the cables can be sorted and fixed through the cable management grooves 11 to ensure that the cable wiring in the box body 1 is neat, thereby effectively avoiding messy wiring and entanglement. The first dustproof net 15 and the second dustproof net 17 are respectively installed between the first card block 14 at the air inlet 12 and the second card block 16 at the air outlet 13. The first dustproof net 15 and the second dustproof net 17 can respectively block the dust at the air inlet 12 and the air outlet 13, thereby effectively preventing dust from entering the interior of the box body 1 and adhering to the surface of the server hardware.

[0044] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dustproof and heat-dissipating server chassis, characterized in that: The invention comprises a box body, a plurality of feet are fixedly connected to the bottom of the box body, a box door is installed on the front side, and a plurality of dust shields are fixedly connected to the rear side of the box body, a wiring port is opened at the bottom of each of the dust shields, a fixed bin is fixedly connected to the inner walls on both sides of the box body, a plurality of support blocks are fixedly connected to the side walls of the fixed bin, a wind cooling port can be opened at the top of each of the support blocks, and a support plate is placed on the top of each of the support blocks, a wire management board is fixedly connected to the rear end face of the support plate, the side face of the wire management board is L-shaped, and a plurality of wire management grooves are opened at the top of the box body, and the inner wall of the box body is fixedly connected to the fixed bin, and a plurality of support blocks are fixedly connected to the side walls of the fixed bin, and a wind cooling port can be opened at the top of each of the support blocks, and a support plate is placed on the top of each of the support blocks, and a wire management board is fixedly connected to the rear end face of the support plate, and the side face of the wire management board is L-shaped, and a plurality of wire management grooves are opened at the top. An air cooling component is installed on the top of the cavity, and a plurality of air inlet holes are opened on the top thereof, and a plurality of air outlets are opened on the bottom side walls of both sides of the box body, the air inlet holes are distributed in a linear array, and a first card block is arranged on both sides thereof, the bottom of the first card block is fixedly connected to the top of the box body, and a first dustproof net is installed between the first card blocks, the air outlet is rectangular, and is equidistantly linearly distributed along the height direction of the box body, and a second card block is arranged above and below the air outlet, one side of the second card block is fixedly connected to the side wall of the box body, and a second dustproof net is installed between the second card blocks; The air cooling component includes a blast chamber, which is installed on the top inner wall of the box body and is located directly below the air inlet. A fan is installed in the blast chamber, and air ducts are installed on both sides of the blast chamber. One end of the air duct is connected to the inner cavity of the blast chamber, and the other end of the air duct is installed on the top of the fixed chamber and is connected to the inner cavity of the fixed chamber.

2. A dustproof and heat-dissipating server chassis according to claim 1, characterized in that: A plurality of positioning columns are fixedly connected to the top of the support block, and a plurality of positioning holes are opened on the surface of the support plate. The number of the positioning holes is the same as that of the positioning columns, the diameters are equal, and the center of each positioning hole corresponds one-to-one to the center of each positioning column.

3. A dustproof and heat-dissipating server chassis according to claim 1, characterized in that: The bottom of the support block is fixedly connected with a plurality of reinforcing ribs, the reinforcing ribs are triangular in shape, one side of which is fixedly connected to the side wall of the fixed bin, and the reinforcing ribs are equidistantly linearly distributed along the length direction of the support block.

4. The dust-proof and heat-dissipating server chassis according to claim 1, characterized in that: The four corners of the top of the support plate are all fixedly connected with cushion columns, and the surfaces of the cushion columns are engraved with herringbone anti-skid patterns.

5. The dust-proof and heat-dissipating server chassis according to claim 1, characterized in that: A plurality of heat conducting plates are arranged on the top surface of the support plate, and a plurality of air guide holes are opened on the surface of the support plate. The air guide holes are rectangular hole structures and are equidistantly linearly distributed along the length direction of the support plate. The heat conducting plates are long strips, and each of the heat conducting plates and the air guide holes are staggered with each other.

6. The dust-proof and heat-dissipating server chassis according to claim 1, characterized in that: The cable management grooves are U-shaped groove structures and are linearly distributed at equal distances along the length direction of the cable management plate, and a layer of anti-wear pads is provided on the groove bottom surface of each cable management groove.

7. The dust-proof and heat-dissipating server chassis according to claim 1, characterized in that: The first card block and the second card block are both L-shaped, and the inner wall heights thereof are respectively equal to the thicknesses of the first dustproof net and the second dustproof net, and the inner wall spacing between the first card block and the second card block is respectively equal to the widths of the first dustproof net and the second dustproof net.

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