Carbon fiber composite material cabinet with electromagnetic shielding protection function

Abstract

The invention discloses a carbon fiber composite material cabinet with an electromagnetic shielding protection function, and relates to the technical field of carbon fiber composite material cabinets, the carbon fiber composite material cabinet comprises a cabinet body, carbon fiber cover plates are installed on the two sides of the cabinet body, a handle is installed at one end of the carbon fiber cover plate on one side, an aluminum alloy frame is arranged at one end of the cabinet body, and the aluminum alloy frame is arranged on the cabinet body. A buffer box is mounted at the lower end of the aluminum alloy frame; a buffer plate is mounted on one side of the inner wall of the buffer box, and multiple groups of first springs are mounted at the lower end of the buffer plate; the carbon fiber composite material cabinet with the electromagnetic shielding protection function has the advantages that the carbon fiber composite material cabinet with the electromagnetic shielding protection function can be buffered when the cabinet is placed, so that the cabinet cannot vibrate, a circuit board in the cabinet cannot be damaged, the filter plate can be quickly assembled and disassembled by the carbon fiber composite material cabinet with the electromagnetic shielding protection function, and the service life of the cabinet is prolonged. And heat dissipation can be carried out on the circuit board and electromagnetic waves can be shielded.

Description

Technical Field

[0001] The invention relates to the technical field of carbon fiber composite material cabinets, and in particular to a carbon fiber composite material cabinet with electromagnetic shielding protection function. Background Art

[0002] A cabinet is an independent or self-supporting housing for electrical or electronic equipment. It is an indispensable component of electrical equipment and a carrier of electrical control equipment. A carbon fiber composite cabinet is a type of cabinet made of carbon fiber and its composite materials. It has the characteristics of low density, light weight, high strength, and corrosion resistance.

[0003] However, when a carbon fiber composite cabinet is placed on the ground, it will be impacted by other equipment on the ground, especially in some production workshops with complex environments. Existing carbon fiber composite cabinets do not have buffering measures, which may cause damage to the internal circuit boards due to the impact force, making them inconvenient to use. In addition, although traditional metal cabinets have good electromagnetic shielding effects, they cannot reduce the interference of electromagnetic reflection waves inside the cabinet on internal electronic equipment. To this end, we propose a carbon fiber composite cabinet with electromagnetic shielding protection function. Summary of the invention

[0004] The object of the present invention is to provide a carbon fiber composite material cabinet with electromagnetic shielding protection function.

[0005] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: a carbon fiber composite material cabinet with electromagnetic shielding protection function, comprising a cabinet, carbon fiber cover plates are installed on both sides of the cabinet, a handle is installed on one end of the carbon fiber cover plate on one side, an aluminum alloy frame is provided at one end of the cabinet, a buffer box is installed at the lower end of the aluminum alloy frame, a buffer plate is installed on one side of the inner wall of the buffer box, a plurality of groups of first springs are installed at the lower end of the buffer plate, dampers are sleeved inside the first springs, a plurality of groups of rotating plates are provided on both sides of the buffer plate, and the buffer plate A plurality of mounting blocks are installed at the bottom of the punch box, a connecting column is installed on one side of the inner wall of the mounting block, a second spring is arranged on the other side of the inner wall of the mounting block, a moving block is installed on the connecting column, a circuit board is arranged on one side of the inner wall of the cabinet, an aluminum foil is arranged on the other side of the inner wall of the cabinet, a hollow carbon ball composite plate is arranged on one side of the aluminum foil, a carbon fiber composite plate is arranged on one side of the hollow carbon ball composite plate, a plurality of aluminum thin plates are arranged on the other side of the aluminum foil, a pipe is installed on one side of the aluminum thin plate, an exhaust pump is arranged on the upper pipe, and an intake pump is arranged on the lower pipe.

[0006] Preferably, the buffer plate is elastically connected to the first spring, and the first spring is located inside the buffer box.

[0007] Preferably, the buffer plate is movably connected to the rotating plate, and the rotating plate is movably connected to the moving block.

[0008] Preferably, the moving block is slidably connected to the connecting column, and the moving block is elastically connected to the second spring.

[0009] Preferably, a connecting plate is installed on one side of the buffer plate near both sides, a filter plate is installed on one side of the inner wall of the connecting plate, a clamping plate is installed on the upper end of the filter plate, sliding columns are installed on both sides of the lower end of the clamping plate, an extrusion plate is installed on the lower end of the sliding column, and a third spring is provided at the upper end of the extrusion plate.

[0010] Preferably, the connecting plate is slidably connected to the filter plate, the sliding column passes through the connecting plate, and the sliding column is slidably connected to the connecting plate.

[0011] Preferably, the extrusion plate is elastically connected to the third spring, and the third spring is located between the connecting plate and the extrusion plate.

[0012] Preferably, a carbon fiber composite material layer is used on the innermost side of the cabinet side wall, a hollow carbon ball composite material layer is arranged on the outer side of the carbon fiber composite material layer, a metal foil layer is arranged on the outer side of the hollow carbon ball composite material layer, and a rigid filler layer is arranged on the outer side of the metal foil layer.

[0013] Preferably, a cavity is provided between the metal foil layer and the rigid filler layer.

[0014] By adopting the above technical scheme, when the cabinet is vibrated by the external environment, the first spring and the second spring can be squeezed respectively with the cooperation of the buffer plate, the rotating plate and the moving block, and then the impact force can be buffered under the elasticity of the first spring and the second spring, and the buffered impact force can be absorbed through the cooperation of the damper, so that the cabinet will not vibrate, and the carbon fiber composite material cabinet with electromagnetic shielding protection function can quickly load and unload the filter plate, and can dissipate heat from the circuit board and shield electromagnetic waves.

[0015] By adopting the above technical scheme, heat is generated when the circuit board is running, and then the intake pump and the exhaust pump are started at the same time, so that the air inside the cabinet circulates with the cooperation of the intake pump, the pipeline and the exhaust pump, thereby dissipating heat. At the same time, the filter plate can filter dust in the air, and then the filter plate can be quickly loaded and unloaded with the cooperation of the clamping plate, the sliding column, the extrusion plate and the third spring. Moreover, the electromagnetic waves generated by the circuit board can be shielded and absorbed through the cooperation of the carbon fiber composite plate, the hollow carbon ball composite plate, the metal foil layer and the rigid filler layer, so that the carbon fiber composite material cabinet with electromagnetic shielding protection function can quickly load and unload the filter plate, and can dissipate heat from the circuit board and shield electromagnetic waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 is a cross-sectional view in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of a buffer box in an embodiment of the present invention;

[0019] Figure 4 Schematic diagram of the connection structure between the connecting plate and the third spring in an embodiment of the present invention;

[0020] Figure 5 It is a schematic structural diagram of the cabinet side wall of the present invention.

[0021] In the figure: 1. cabinet; 2. carbon fiber cover; 3. handle; 4. aluminum alloy frame; 5. buffer box; 6. buffer plate; 7. first spring; 8. damper; 9. rotating plate; 10. moving block; 11. mounting block; 12. connecting column; 13. second spring; 14. circuit board; 15. aluminum foil; 16. hollow carbon ball composite board; 17. carbon fiber composite board; 18. aluminum sheet; 19. intake pump; 20. pipeline; 21. exhaust pump; 22. connecting plate; 23. filter plate; 24. clamping plate; 25. sliding column; 26. extrusion plate; 27. third spring; 28. carbon fiber composite material layer, 29. hollow carbon ball composite material layer, 30. metal foil layer, 31. rigid filler layer. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] Embodiment 1:

[0024] See also Figure 1-4The present invention provides a technical solution: a carbon fiber composite material cabinet with electromagnetic shielding protection function, comprising a cabinet 1, carbon fiber cover plates 2 are installed on both sides of the cabinet 1, a handle 3 is installed on one end of the carbon fiber cover plate 2 on one side, an aluminum alloy frame 4 is provided at one end of the cabinet 1, a buffer box 5 is installed at the lower end of the aluminum alloy frame 4, a buffer plate 6 is installed on one side of the inner wall of the buffer box 5, a plurality of groups of first springs 7 are installed at the lower end of the buffer plate 6, a damper 8 is sleeved inside the first spring 7, a plurality of groups of rotating plates 9 are provided on both sides of the buffer plate 6, a plurality of groups of mounting blocks 11 are installed at the bottom of the buffer box 5, and a plurality of mounting blocks 11 are installed at the bottom of the buffer box 5. A connecting column 12 is installed on one side of the inner wall of the mounting block 11, a second spring 13 is provided on the other side of the inner wall of the mounting block 11, a moving block 10 is installed on the connecting column 12, a circuit board 14 is provided on one side of the inner wall of the cabinet 1, an aluminum foil 15 is provided on the other side of the inner wall of the cabinet 1, a hollow carbon ball composite plate 16 is provided on one side of the aluminum foil 15, a carbon fiber composite plate 17 is provided on one side of the hollow carbon ball composite plate 16, a plurality of groups of aluminum sheets 18 are provided on the other side of the aluminum foil 15, a pipe 20 is installed on one side of the aluminum sheets 18, an exhaust pump 21 is provided on the upper pipe 20, and an intake pump 19 is provided on the lower pipe 20.

[0025] The buffer plate 6 is elastically connected to the first spring 7 , and the first spring 7 is located inside the buffer box 5 .

[0026] The buffer plate 6 is movably connected to the rotating plate 9 , and the rotating plate 9 is movably connected to the moving block 10 .

[0027] The moving block 10 is slidably connected to the connecting column 12 , and the moving block 10 is elastically connected to the second spring 13 .

[0028] Specifically, when the cabinet 1 is transported, the cabinet 1 is put down after arriving at the transporting location. At this time, when the cabinet 1 is put down, a certain impact force will be generated due to its own weight, so that the cabinet 1 will squeeze the buffer plate 6; or when the cabinet has been placed on the ground and is vibrated by the external environment, the buffer plate 6 will slide inside the buffer box 5 and squeeze downward, so that the rotating plate 9 rotates between the buffer plate 6 and the moving block 10, so that the rotating plate 9 pushes the moving block 10 to slide on the connecting column 12 and squeezes the second spring 13. At the same time, when the buffer plate 6 slides, it will squeeze the first spring 7 below, and then under the elasticity of the first spring 7 and the second spring 13, the buffer plate 6 will be buffered, and the impact force after buffering will be absorbed by the damper 8, so that the cabinet 1 will not vibrate, so that the carbon fiber composite material cabinet with electromagnetic shielding protection function can be buffered when the cabinet 1 is placed, so that the cabinet 1 will not vibrate, and the circuit board 14 inside the cabinet 1 will not be damaged.

[0029] Embodiment 2:

[0030] See also Figure 1-4 The present invention provides a technical solution: a carbon fiber composite material cabinet with electromagnetic shielding protection function, a connecting plate 22 is installed on one side of the buffer plate 6 near the two sides, a filter plate 23 is installed on one side of the inner wall of the connecting plate 22, a clamping plate 24 is installed on the upper end of the filter plate 23, sliding columns 25 are installed on both sides of the lower end of the clamping plate 24, an extrusion plate 26 is installed on the lower end of the sliding column 25, and a third spring 27 is provided on the upper end of the extrusion plate 26.

[0031] The connecting plate 22 is slidably connected to the filter plate 23 , the sliding column 25 passes through the connecting plate 22 , and the sliding column 25 is slidably connected to the connecting plate 22 .

[0032] The extrusion plate 26 is elastically connected to the third spring 27 , and the third spring 27 is located between the connecting plate 22 and the extrusion plate 26 .

[0033] Specifically, by pulling the clamping plate 24, the clamping plate 24 drives the sliding column 25 to slide on the connecting plate 22. At this time, when the sliding column 25 slides, it will drive the squeezing plate 26 to squeeze the third spring 27, so that the distance between the clamping plate 24 and the connecting plate 22 is increased, and then stop when it is adjusted to a suitable position according to the size of the filter plate 23, and then insert the filter plate 23 into the connecting plate 22, and then release the clamping plate 24, so that the squeezing plate 26 returns to its original position under the elasticity of the third spring 27, and then the squeezing plate 26 will pull the clamping plate 24 through the sliding column 25 to clamp and fix the filter plate 23, and then start the intake pump 19 and the exhaust pump 21 at the same time, at this time the intake pump 19 will pass through the lower pipe 2 0 inhales the outside air, and then the exhaust pump 21 discharges the air inside the cabinet 1 through the upper pipe 20, thereby forming a cycle to achieve heat dissipation, and the aluminum sheet 18 can assist in heat dissipation, and then when the circuit board 14 is running, electromagnetic waves will be generated, and then the electromagnetic waves will be absorbed by the carbon fiber composite board 17 and the hollow carbon ball composite board 16, and the hollow carbon ball composite board 16 and the carbon fiber composite board 17 will provide rigidity to the cabinet 1 and reduce the structural weight, and then the aluminum foil 15 will shield the electromagnetic waves in one step, so that the carbon fiber composite material cabinet with electromagnetic shielding protection function can quickly load and unload the filter plate 23, and can dissipate heat for the circuit board 14 and shield electromagnetic waves.

[0034] like Figure 5As shown, the carbon fiber composite material cabinet with electromagnetic shielding protection function of the present invention uses a carbon fiber composite material layer 28 on the innermost side, which absorbs electromagnetic waves while providing rigidity; the middle layer is a hollow carbon ball composite material layer 29, which reduces the structural weight while absorbing electromagnetic waves; the outermost layer uses a rigid filler layer 31 with rigidity, such as plastic, to ensure the mechanical structure, strength and appearance of the cabinet; a metal foil layer 30, such as aluminum foil, is sandwiched between the hollow carbon ball composite material layer 29 and the rigid filler layer 31 to achieve EMI shielding and reflect electromagnetic waves.

[0035] The hollow carbon ball composite material layer 29 of the present invention has a cavity feature, so that a portion of the electromagnetic radiation is absorbed by the carbon fiber structure with medium conductivity, and the remaining portion is reflected back to the absorption composite layer (carbon fiber composite material layer 28, hollow carbon ball composite material layer 29) by the metal foil layer. The present invention uses a carbon fiber composite material with medium conductivity as an absorption material. Aluminum foil is introduced as a reflective layer + a hollow carbon ball composite material is introduced as an intermediate layer. This structural design not only improves the absorption efficiency of radiation, but also reduces the leakage of radiation, thereby enhancing the overall electromagnetic shielding effect.

[0036] The cabinet structure of the present invention can be regarded as a "capture-reflection-reabsorption" mechanism for effectively controlling electromagnetic radiation. It not only avoids the increase in weight of traditional metal cabinets due to the use of large areas of metal, but also causes the electromagnetic waves generated by the PCB inside the cabinet to not be dissipated to the outside world, but will continue to reflect and propagate inside the cabinet, which may interfere with the normal operation of the PCB. Figure 5 The blue wavy lines represent electromagnetic waves radiated by components, which are absorbed by the carbon fiber composite material layer 28 and the hollow carbon ball composite material layer 29, and then reflected back by the metal foil layer 30 and absorbed by the above composite layers again.

[0037] like Figure 5 As shown, the present invention provides a cavity between the metal foil layer 30 and the rigid filler layer 31 .

[0038] The innermost layer of the cabinet of the present invention is added with a graphite coating to improve the heat dissipation and wave absorbing effects.

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A carbon fiber composite material cabinet with electromagnetic shielding protection function, characterized in that: The cabinet (1) comprises a carbon fiber cover plate (2) installed on both sides of the cabinet (1), a handle (3) installed on one end of the carbon fiber cover plate (2), an aluminum alloy frame (4) provided at one end of the cabinet (1), and a buffer box (5) installed at the lower end of the aluminum alloy frame (4); A buffer plate (6) is installed on one side of the inner wall of the buffer box (5), and a plurality of groups of first springs (7) are installed at the lower end of the buffer plate (6), and a damper (8) is sleeved inside each of the first springs (7). A plurality of groups of rotating plates (9) are arranged on both sides of the buffer plate (6). A plurality of groups of mounting blocks (11) are installed at the bottom of the buffer box (5), and a connecting column (12) is installed on one side of the inner wall of the mounting block (11), and a second spring (13) is arranged on the other side of the inner wall of the mounting block (11). A moving block (10) is installed on the connecting column (12). A circuit board (14) is arranged on one side of the inner wall of the cabinet (1), an aluminum foil (15) is arranged on the other side of the inner wall of the cabinet (1), a hollow carbon ball composite plate (16) is arranged on one side of the aluminum foil (15), a carbon fiber composite plate (17) is arranged on one side of the hollow carbon ball composite plate (16), a plurality of groups of aluminum thin plates (18) are arranged on the other side of the aluminum foil (15), a pipe (20) is installed on one side of each of the aluminum thin plates (18), an exhaust pump (21) is arranged on the upper side of the pipe (20), and an intake pump (19) is arranged on the lower side of the pipe (20).

2. The carbon fiber composite material cabinet with electromagnetic shielding protection function according to claim 1, characterized in that: The buffer plate (6) is elastically connected to the first spring (7), and the first spring (7) is located inside the buffer box (5).

3. The carbon fiber composite material cabinet with electromagnetic shielding protection function according to claim 2, characterized in that: The buffer plate (6) is movably connected to the rotating plate (9), and the rotating plate (9) is movably connected to the moving block (10).

4. The carbon fiber composite material cabinet with electromagnetic shielding protection function according to claim 3, characterized in that: The moving block (10) is slidably connected to the connecting column (12), and the moving block (10) is elastically connected to the second spring (13).

5. The carbon fiber composite material cabinet with electromagnetic shielding protection function according to claim 1, characterized in that: A connecting plate (22) is installed at a position close to both sides of one side of the buffer plate (6), a filter plate (23) is installed on one side of the inner wall of the connecting plate (22), a clamping plate (24) is installed at the upper end of the filter plate (23), sliding columns (25) are installed on both sides of the lower end of the clamping plate (24), an extrusion plate (26) is installed at the lower end of the sliding column (25), and a third spring (27) is provided at the upper end of the extrusion plate (26).

6. The carbon fiber composite material cabinet with electromagnetic shielding protection function according to claim 5, characterized in that: The connecting plate (22) is slidably connected to the filter plate (23), the sliding column (25) passes through the connecting plate (22), and the sliding column (25) is slidably connected to the connecting plate (22).

7. The carbon fiber composite material cabinet with electromagnetic shielding protection function according to claim 5, characterized in that: The extrusion plate (26) is elastically connected to the third spring (27), and the third spring (27) is located between the connecting plate (22) and the extrusion plate (26).

8. The carbon fiber composite material cabinet with electromagnetic shielding protection function according to claim 1, characterized in that: A carbon fiber composite material layer (28) is used on the innermost side of the cabinet side wall, a hollow carbon ball composite material layer (29) is arranged on the outer side of the carbon fiber composite material layer (28), a metal foil layer (30) is arranged on the outer side of the hollow carbon ball composite material layer (29), and a rigid filler layer (31) is arranged on the outer side of the metal foil layer (30).

9. The carbon fiber composite material cabinet with electromagnetic shielding protection function according to claim 8, characterized in that: A cavity is provided between the metal foil layer (30) and the rigid filler layer (31).

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