Electromagnetic shielding device

Abstract

The utility model relates to the technical field of electromagnetic shielding cabinets, and discloses an electromagnetic shielding device, which comprises a cabinet body, a front cabinet door, a rear cabinet door, a placement frame, a heat dissipation mechanism, a mounting frame, a buffer assembly and a limiting assembly, and is characterized in that the front side of the cabinet body is hinged with the front cabinet door through a hinge, and the rear side of the cabinet body is hinged with the rear cabinet door through a hinge; the placement frame is fixedly installed in the cabinet body, the heat dissipation mechanisms are arranged on the side faces of the front cabinet door and the rear cabinet door, the left side and the right side of the cabinet body are each provided with an installation frame, the side faces of the installation frames are provided with detachable buffer assemblies, and the limiting assemblies are arranged in the installation frames. And a buffering effect can be achieved, and a worker can replace the buffering assembly conveniently. Once the elasticity of a buffer spring or an air bag of the buffer assembly is weakened, the buffer assembly can be replaced so as to ensure that the buffer assembly can play an effective buffer role and further play a role in protecting electronic equipment in the cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic shielding cabinets, and more specifically to an electromagnetic shielding device. Background Art

[0002] Electromagnetic shielding cabinets are used to place computers, servers, switches and other electronic communication equipment to prevent electronic equipment from being affected by external electromagnetic waves during operation and affecting their normal operation. They can also isolate electromagnetic waves from harming the human body. Electromagnetic shielding cabinets are small in size, easy to install and flexible to use. They are very suitable for use in situations where it is not suitable to install an electromagnetic shielding room but information equipment needs to be protected.

[0003] Chinese utility model patent CN220254963U discloses an electromagnetic shielding safety cabinet. By arranging buffer springs, buffer balls and protective plates, when the cabinet is hit by external impact, the impact force will first act on the silicone pad on the surface of the protective plate, and then the buffer spring on the inner side of the protective plate will shrink inward under pressure to buffer the impact force, and cooperate with the buffer ball on one side to further reduce the impact force, thereby reducing the deformation of the cabinet surface caused by impact damage, and at the same time can provide a certain degree of protection for the internal electronic equipment.

[0004] The above technical solution has the following problems: In actual use, we found that the elasticity of the buffer spring will gradually weaken during the long-term compression and release process. Since the buffer spring is fixedly installed on the side of the cabinet, these buffer components cannot be replaced. Therefore, when they are hit by the outside again, they will not play an effective buffering role, and will not be able to protect the electronic equipment inside the cabinet. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an electromagnetic shielding device to solve the problem that the buffer component cannot be replaced.

[0006] The utility model provides the following technical solutions:

[0007] An electromagnetic shielding device includes a cabinet, and also includes a front cabinet door, a rear cabinet door, a support component, a placement rack, a heat dissipation mechanism, a mounting rack, a buffer component and a limit component. The front side of the cabinet is hinged with the front cabinet door through a hinge, and the rear side of the cabinet is hinged with the rear cabinet door through a hinge. The side of the bottom of the cabinet is provided with a support component, the placement rack is fixedly installed inside the cabinet, the heat dissipation mechanism is arranged on the sides of the front cabinet door and the rear cabinet door, the left and right sides of the cabinet are both provided with mounting racks, and the side of the mounting rack is provided with a detachable buffer component, the limit component is arranged inside the mounting rack, and the buffer component is connected to the mounting rack through the limit component.

[0008] Furthermore, the buffer assembly includes a buffer frame, a buffer frame is arranged on the side of the mounting frame, a slide groove is opened on the inner side of the buffer frame, a buffer spring is fixedly installed inside the slide groove, a sliding plate is fixedly connected to the side of the buffer spring, a movable frame is fixedly installed on the side of the sliding plate, an airbag is arranged between the buffer frame and the movable frame, and a buffer pad is bonded to the side of the movable frame.

[0009] Furthermore, the limiting assembly includes a connecting groove, a connecting groove is provided on a side of the mounting frame, a connecting plate is fixedly installed on a side of the buffer frame close to the mounting frame, and the connecting plate is adapted to the connecting groove.

[0010] Furthermore, a return spring and a limit rod are fixedly installed inside the mounting frame, a movable plate is fixedly connected to the side of the return spring, the movable plate is slidably connected to the limit rod, a shift plate is fixedly installed on the outer side of the movable plate, a clamping plate is fixedly installed on the side of the movable plate away from the return spring, a clamping groove is opened on the side of the connecting plate, and the clamping plate is clamped in the clamping groove.

[0011] Furthermore, the support assembly includes a fixing frame, which is fixedly installed on the side of the bottom of the cabinet, a threaded hole is opened inside the fixing frame, a threaded rod is connected to the internal thread of the threaded hole, a support plate is arranged at the bottom of the threaded rod, and universal wheels are arranged at the four end corners of the bottom of the cabinet.

[0012] Furthermore, the heat dissipation mechanism includes a heat dissipation frame, a heat dissipation frame is fixedly installed on the side of the rear cabinet door, a heat dissipation fan is fixedly installed inside the heat dissipation frame, a ventilation net 1 is fixedly installed on the inner side of the front cabinet door, and a ventilation net 2 is fixedly installed on the side of the heat dissipation frame.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model, through the coordinated use of the buffer assembly and the limit assembly, can not only play a buffering role, but also facilitate the staff to replace the buffer assembly. The movable plate can be driven to move by pushing and pulling the dial plate, and the movable plate is pushed in the direction away from the connecting plate, so that the card plate is separated from the card slot of the connecting plate. At this time, the connecting plate and the buffer frame can be slid out of the connecting slot of the mounting frame, so that the buffer assembly can be removed from the side of the mechanism. Once the buffer spring or airbag elasticity of the buffer assembly is weakened, the buffer assembly can be replaced to ensure that it can play an effective buffering role, thereby protecting the electronic equipment inside the cabinet.

[0015] 2. The utility model can conveniently move the electromagnetic shielding device through the universal wheels. When the device is moved to a suitable position, the staff can rotate the threaded rod to move the threaded rod up and down in the threaded hole of the fixing frame, thereby driving the support plate to move up and down. When the four support plates are all moved down and support the ground, the stability of the device can be improved, making it less likely to shake.

[0016] 3. The utility model can improve the ventilation effect of the electromagnetic shielding device through the heat dissipation mechanism. The heat dissipation fan is driven to allow the outside air to enter the cabinet from the second ventilation net, so that the hot air inside the cabinet is discharged from the first ventilation net, completing the air interaction between the inside of the cabinet and the outside, greatly improving the heat dissipation effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 (front view);

[0018] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 (dorsal view);

[0019] Figure 3 It is a partial structure diagram of the utility model Figure 1 (Cabinet cutaway view);

[0020] Figure 4 It is a partial structure diagram of the utility model Figure 2 (Mounting frame and buffer assembly);

[0021] Figure 5 It is a partial structure diagram of the utility model Figure 3 (Cutaway view of buffer frame);

[0022] Figure 6 It is a partial structure diagram of the utility model Figure 4 (Section view of mounting frame);

[0023] Figure 7 It is a partial structure diagram of the utility model Figure 5 (Support assembly).

[0024] The accompanying drawings are marked as follows: 1. cabinet body; 2. front cabinet door; 3. rear cabinet door; 4. universal wheel; 5. support assembly; 501. fixing frame; 502. threaded hole; 503. support plate; 504. threaded rod; 6. placement rack; 7. heat dissipation mechanism; 701. heat dissipation rack; 702. heat dissipation fan; 703. ventilation net one; 704. ventilation net two; 8. mounting rack; 9. buffer assembly; 901. buffer rack; 902. slide groove; 903. buffer spring; 904. sliding plate; 905. movable frame; 906. airbag; 907. buffer pad; 10. limit assembly; 1001. connecting groove; 1002. connecting plate; 1003. reset spring; 1004. movable plate; 1005. limit rod; 1006. clamping plate; 1007. clamping groove; 1008. dial plate. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0026] Figure 1-Figure 7 This is the best embodiment of the utility model, and the following is combined with the accompanying drawings Figure 1-Figure 7 The utility model is further described.

[0027] An electromagnetic shielding device includes a cabinet 1, and also includes a front cabinet door 2, a rear cabinet door 3, a support component 5, a placement rack 6, a heat dissipation mechanism 7, a mounting rack 8, a buffer component 9 and a limit component 10. The front side of the cabinet 1 is hinged with the front cabinet door 2 through a hinge, and the rear side of the cabinet 1 is hinged with the rear cabinet door 3 through a hinge. The side of the bottom of the cabinet 1 is provided with a support component 5, the placement rack 6 is fixedly installed inside the cabinet 1, the heat dissipation mechanism 7 is arranged on the sides of the front cabinet door 2 and the rear cabinet door 3, the left and right sides of the cabinet 1 are installed with mounting racks 8, and the sides of the mounting rack 8 are provided with detachable buffer components 9, the limit component 10 is arranged inside the mounting rack 8, and the buffer component 9 is connected to the mounting rack 8 through the limit component 10.

[0028] The electromagnetic shielding device can effectively absorb or reflect external electromagnetic waves by using a shielding body made of conductive materials (such as conductive plastic, conductive rubber silicone, conductive foam, filled composite materials, electromagnetic shielding film, etc.) on the surface of the cabinet 1, thereby reducing or eliminating the interference of these electromagnetic waves on the internal circuit.

[0029] Specifically, the buffer assembly 9 includes a buffer frame 901, the buffer frame 901 is arranged on the side of the mounting frame 8, a slide groove 902 is opened on the inner side of the buffer frame 901, a buffer spring 903 is fixedly installed inside the slide groove 902, a sliding plate 904 is fixedly connected to the side of the buffer spring 903, a movable frame 905 is fixedly installed on the side of the sliding plate 904, an airbag 906 is arranged between the buffer frame 901 and the movable frame 905, and a buffer pad 907 is bonded to the side of the movable frame 905.

[0030] In this embodiment, the buffer pad 907 can not only play a buffering role, but also protect the impactor, preventing the impactor from being injured by direct contact with the cabinet. In addition, the use of the buffer spring 903 and the airbag 906 can effectively release the impact force and play a further buffering role.

[0031] Specifically, the limiting assembly 10 includes a connecting groove 1001 . The connecting groove 1001 is opened on the side of the mounting frame 8 . A connecting plate 1002 is fixedly installed on one side of the buffer frame 901 close to the mounting frame 8 . The connecting plate 1002 is adapted to the connecting groove 1001 .

[0032] In this embodiment, the buffer frame 901 and the buffer assembly 9 can be placed on the side of the mounting frame 8 by sliding the connecting plate 1002 of the buffer frame 901 into the connecting groove 1001 of the mounting frame 8 .

[0033] Specifically, a reset spring 1003 and a limiting rod 1005 are fixedly installed inside the mounting frame 8, a movable plate 1004 is fixedly connected to the side of the reset spring 1003, the movable plate 1004 is slidably connected to the limiting rod 1005, a shift plate 1008 is fixedly installed on the outer side of the movable plate 1004, a clamping plate 1006 is fixedly installed on the side of the movable plate 1004 away from the reset spring 1003, a clamping groove 1007 is opened on the side of the connecting plate 1002, and the clamping plate 1006 is clamped in the clamping groove 1007.

[0034] In this embodiment, the movable plate 1004 can be driven to move by pushing and pulling the dial plate 1008, so that the movable plate 1004 is pushed away from the connecting plate 1002, so that the clamping plate 1006 is separated from the clamping slot 1007 of the connecting plate 1002. When the movable plate 1004 is not subjected to external force, it will move toward the connecting plate 1002 under the action of the return spring 1003, so that the clamping plate 1006 is clamped in the clamping slot 1007 of the connecting plate 1002 again.

[0035] Specifically, the support assembly 5 includes a fixing frame 501, and the fixing frame 501 is fixedly installed on the side of the bottom of the cabinet 1. A threaded hole 502 is opened inside the fixing frame 501, and a threaded rod 504 is connected to the internal thread of the threaded hole 502. A support plate 503 is arranged at the bottom of the threaded rod 504, and universal wheels 4 are arranged at the four end corners of the bottom of the cabinet 1, and support assemblies 5 are arranged on the sides of the four universal wheels 4.

[0036] In this embodiment, the threaded rod 504 is rotated to move up and down in the threaded hole 502 of the fixing frame 501 , thereby driving the supporting plate 503 to move up and down.

[0037] Specifically, the heat dissipation mechanism 7 includes a heat dissipation frame 701, the heat dissipation frame 701 is fixedly installed on the side of the rear cabinet door 3, a heat dissipation fan 702 is fixedly installed inside the heat dissipation frame 701, a ventilation net 1 703 is fixedly installed on the inner side of the front cabinet door 2, and a ventilation net 2 704 is fixedly installed on the side of the heat dissipation frame 701.

[0038] The cooling fan 702 is electrically connected to an external power source and an external controller, and the cooling fan 702 can be turned on and off by the controller.

[0039] In this embodiment, the cooling fan 702 is driven to allow outside air to enter the cabinet from the ventilation net 2 704, so that the hot air inside the cabinet is discharged from the ventilation net 1 703, thereby completing the air interaction between the inside of the cabinet and the outside.

[0040] The working principle and use process of the utility model: when in use, the staff can push the cabinet, move the device to a suitable position through the universal wheel 4, and then rotate the threaded rod 504 to move the threaded rod 504 downward in the threaded hole 502 of the fixing frame 501, thereby driving the support plate 503 to move downward. When the four support plates 503 all move downward and support the ground, the stability of the device can be improved, making it less likely to shake. Then place the electronic equipment that needs to be protected on the placement rack 6 of the cabinet 1, and then close the front cabinet door 2 and the rear cabinet door 3. Once the temperature inside the cabinet is too high, the cooling fan 702 is driven to allow the outside air to enter the cabinet from the ventilation net 2 704, and the hot air inside the cabinet is discharged from the ventilation net 1 703, so that the air interaction between the inside of the cabinet and the outside world can be completed, which greatly improves the heat dissipation effect of the device. When a user hits the movable frame 905, the user will first contact the buffer pad 907. The buffer pad 907 not only plays a buffering role, but also protects the user from being injured by direct contact with the cabinet. In addition, the use of the buffer spring 903 and the airbag 906 can effectively release the impact force and play a further buffering role. When the buffer assembly 9 is used for a long time and the elasticity of the buffer spring 903 and the airbag 906 is weakened, the staff needs to replace the buffer assembly 9. At this time, the push-pull plate 1008 is first pushed and pulled to drive the movable plate 1004 to move, so that the movable plate 1004 is pushed in the direction away from the connecting plate 1002, so that the card plate 1006 is disengaged from the card slot 1007 of the connecting plate 1002, and then the connecting plate 1002 on the side of the buffer frame 901 is slid out of the connecting slot 1001 of the mounting frame 8, so that the buffer assembly 9 can be removed, and then the connecting plate 1002 of the new buffer assembly 9 is aligned with the connecting slot 1001 of the mounting frame 8 and slid into it, and then the pull plate 1008 is released. The movable plate 1004 moves in the direction close to the connecting plate 1002 under the action of the reset spring 1003, so that the card plate 1006 is re-engaged in the card slot 1007 of the connecting plate 1002, thereby completing the replacement of the buffer assembly 9 to ensure that it can play an effective buffering role, thereby protecting the electronic equipment inside the cabinet.

[0041] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. An electromagnetic shielding device, comprising a cabinet (1), characterized in that: The cabinet further comprises a front cabinet door (2), a rear cabinet door (3), a support component (5), a placement rack (6), a heat dissipation mechanism (7), a mounting rack (8), a buffer component (9) and a limit component (10); the front side of the cabinet body (1) is hingedly connected to the front cabinet door (2) through a hinge; the rear side of the cabinet body (1) is hingedly connected to the rear cabinet door (3) through a hinge; a support component (5) is arranged on the side of the bottom of the cabinet body (1); the placement rack (6) is fixedly mounted inside the cabinet body (1); the heat dissipation mechanism (7) is arranged on the side of the front cabinet door (2) and the rear cabinet door (3); mounting racks (8) are installed on both left and right sides of the cabinet body (1); a detachable buffer component (9) is arranged on the side of the mounting rack (8); the limit component (10) is arranged inside the mounting rack (8); and the buffer component (9) is connected to the mounting rack (8) through the limit component (10).

2. An electromagnetic shielding device according to claim 1, characterized in that: The buffer assembly (9) comprises a buffer frame (901), the buffer frame (901) is arranged on the side of the mounting frame (8), a slide groove (902) is provided on the inner side of the buffer frame (901), a buffer spring (903) is fixedly installed inside the slide groove (902), a sliding plate (904) is fixedly connected to the side of the buffer spring (903), a movable frame (905) is fixedly installed on the side of the sliding plate (904), an air bag (906) is arranged between the buffer frame (901) and the movable frame (905), and a buffer pad (907) is bonded to the side of the movable frame (905).

3. An electromagnetic shielding device according to claim 2, characterized in that: The limiting assembly (10) comprises a connection groove (1001), a side of the mounting frame (8) is provided with a connection groove (1001), a side of the buffer frame (901) close to the mounting frame (8) is fixedly provided with a connection plate (1002), and the connection plate (1002) is adapted to the connection groove (1001).

4. An electromagnetic shielding device according to claim 3, characterized in that: A return spring (1003) and a limit rod (1005) are fixedly installed inside the mounting frame (8); a movable plate (1004) is fixedly connected to the side of the return spring (1003); the movable plate (1004) is slidably connected to the limit rod (1005); a shift plate (1008) is fixedly installed on the outside of the movable plate (1004); a clamping plate (1006) is fixedly installed on the side of the movable plate (1004) away from the return spring (1003); a clamping groove (1007) is provided on the side of the connecting plate (1002); and the clamping plate (1006) is clamped to the clamping groove (1007).

5. The electromagnetic shielding device according to claim 1, characterized in that: The support assembly (5) comprises a fixing frame (501), the fixing frame (501) being fixedly mounted on the side of the bottom of the cabinet (1), a threaded hole (502) being provided inside the fixing frame (501), a threaded rod (504) being connected to the inner thread of the threaded hole (502), a supporting plate (503) being provided at the bottom of the threaded rod (504), and universal wheels (4) being provided at the four end corners of the bottom of the cabinet (1).

6. The electromagnetic shielding device according to claim 1, characterized in that: The heat dissipation mechanism (7) comprises a heat dissipation frame (701), the heat dissipation frame (701) is fixedly mounted on the side of the rear cabinet door (3), a heat dissipation fan (702) is fixedly mounted inside the heat dissipation frame (701), a ventilation net 1 (703) is fixedly mounted on the inner side of the front cabinet door (2), and a ventilation net 2 (704) is fixedly mounted on the side of the heat dissipation frame (701).

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