Anti-electromagnetic interference shielding case convenient to install

Abstract

The utility model relates to the field of electronic information, and discloses an anti-electromagnetic interference shielding case convenient to install, which comprises a base and a shielding case body, the shielding case body is positioned at the top of the base, a bottom plate is integrally formed at the bottom of the shielding case body, and the bottom plate is attached to the top of the base; a quick release assembly is inserted into the bottom plate and is used for mounting the shielding cover body; a buffering assembly is arranged on the base and used for buffering the bottom plate; the quick release assembly comprises four sets of fixing seats slidably connected to the bottom plate, the fixing seats are symmetrically arranged on the two sides of the bottom plate, through grooves allowing the fixing seats to slide are formed in the bottom plate, first grooves allowing the fixing seats to be inserted are formed in the base, and first limiting parts and second limiting parts which are the same in structure are symmetrically arranged on the two sides of the fixing seats. The second limiting piece comprises a containing cavity formed in the side wall of the fixing base. According to the utility model, through the quick-release assembly, the problem that inconvenience in installation of the shielding case affects hindering of equipment troubleshooting by technicians is solved.

Description

Technical Field

[0001] This utility model relates to the field of electronic information, specifically to an easy-to-install electromagnetic interference shielding cover. Background Technology

[0002] An electromagnetic interference (EMI) shield is a device used to reduce or block electromagnetic interference (EMI) and radio frequency interference (RFI). Its basic principle is based on electromagnetic shielding theory. When electromagnetic radiation encounters the shield, it undergoes processes such as reflection, absorption, and multiple reflections.

[0003] For high-frequency electromagnetic waves, shielding primarily blocks electromagnetic interference through reflection. This is because when high-frequency electromagnetic waves encounter the surface of a metal shield, most of the energy is reflected back due to impedance mismatch at the metal surface. For low-frequency electromagnetic waves, in addition to reflecting some energy, shielding also reduces electromagnetic interference through absorption losses. Mechanisms such as eddy current losses and hysteresis losses within the shielding material absorb the energy of low-frequency electromagnetic waves.

[0004] Existing electromagnetic interference shielding covers have the following drawbacks: inconvenient installation of shielding covers can greatly hinder equipment troubleshooting. When technicians are looking for the cause of electronic equipment failures, they need to frequently open and close the shielding cover to check internal components. When the installation of the shielding cover is complicated, a lot of time will be wasted in the process of disassembling and assembling the shielding cover, and repeated disassembly and assembly may damage the shielding cover or internal components. Utility Model Content

[0005] The purpose of this invention is to provide an easy-to-install electromagnetic interference shielding cover to solve the problem in the background art where the inconvenience of installing the shielding cover hinders technicians from troubleshooting equipment malfunctions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an easy-to-install electromagnetic interference shielding cover, comprising a base and a shielding cover body, the shielding cover body being located on the top of the base, and a bottom plate integrally formed at the bottom of the shielding cover body, the bottom plate being attached to the top of the base;

[0007] The base plate has a quick-release assembly for installing the shielding cover;

[0008] The base is equipped with a cushioning component to cushion the base plate;

[0009] The quick disassembly assembly comprises a fixing seat slidably connected to the bottom plate, the fixing seat is provided with four groups and symmetrically arranged on both sides of the bottom plate, the bottom plate is provided with a through slot for the fixing seat to slide, the bottom plate is provided with a first recess for the fixing seat to be inserted, the fixing seat is symmetrically provided with a first limiting piece and a second limiting piece which are the same in structure on both sides of the fixing seat, the second limiting piece comprises a cavity formed in the side wall of the fixing seat, a fixing sleeve is fixedly installed in the cavity, a limiting hole is formed in the fixing sleeve, a fixing disc is fixedly installed in the limiting hole, and a limiting sleeve is slidably connected to the cavity opening, and a first spring is installed between the fixing disc and the limiting sleeve.

[0010] Preferably, the buffer assembly comprises a first buffer piece and a second buffer piece which are symmetrically arranged on the upper surface of the base and are the same in structure, the first buffer piece comprises a second recess formed in the upper surface of the base, a damping seat is fixedly arranged in the second recess, a second spring is sleeved on the top of the damping seat, a supporting ring is detachably installed on the top of the second spring, a fixed plate is fixedly arranged on the top of the supporting ring, a connecting block is fixedly arranged on the bottom of the bottom plate, the connecting block is inserted into the second recess and located above the fixed plate, the fixed plate is slidably connected to the second recess, and a rubber pad for buffering is attached to the top of the fixed plate.

[0011] Preferably, the limiting sleeve is located above the through slot and is attached to the upper surface of the bottom plate.

[0012] Preferably, a screw rod is threadedly connected to the fixing seat, a threaded hole matched with the screw rod is formed in the fixing seat, and a threaded groove matched with the screw rod is formed in the first recess.

[0013] Preferably, a copper plate for conducting electricity is attached to the connection between the adjacent surfaces of the shielding cover.

[0014] Preferably, a fixed frame for taking the shielding cover is fixedly arranged on the top of the shielding cover.

[0015] Preferably, a sliding block is symmetrically fixedly arranged on both sides of the fixed plate, and a sliding groove matched with the sliding block is formed in the inner wall of the second recess.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. In this utility model, by simultaneously pressing the limiting sleeves on both sides of the fixing base, the limiting sleeves squeeze the first spring, and the first spring moves within the limiting hole, thereby moving the limiting sleeve into the cavity. By pulling the fixing frame, the shielding cover can be easily removed, facilitating technicians to troubleshoot equipment malfunctions. When the shielding cover needs to be installed, the through slot on the base plate is inserted into the fixing base, and the limiting sleeves on both sides of the fixing base are pressed simultaneously, causing the limiting sleeves to move into the cavity. When the base plate moves to the bottom of the limiting sleeve, the reaction force generated by the first spring pushes the limiting sleeve in the opposite direction, causing the limiting sleeve to move outside the cavity and adhere to the upper surface of the base plate. The limiting sleeve limits the base plate, thereby completing the installation of the shielding cover. The quick-release assembly solves the problem that the inconvenience of installing the shielding cover hinders technicians from troubleshooting equipment malfunctions.

[0018] 2. In this utility model, when the shielding cover is impacted, the shielding cover transmits the force to the connecting block through the base plate. The connecting block squeezes the rubber pad and pushes the fixing plate. When the rubber pad is subjected to external force, the rubber pad can undergo deformation such as stretching and bending to provide initial buffering. The fixing plate squeezes the second spring through the support ring. The second spring deforms to provide buffering. The damping seat provides damping to the second spring, thereby providing secondary buffering. Through two buffering operations, the impact force generated when the shielding cover is impacted is prevented from being transmitted to the components inside the shielding cover. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an electromagnetic interference shielding cover that is easy to install, as proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the mounting base for an easy-to-install electromagnetic interference shielding cover proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the base extension structure of an electromagnetic interference shielding cover that is easy to install, as proposed in this utility model.

[0022] In the diagram: 1. Base; 2. Shielding cover; 3. Base plate; 4. Quick-release assembly; 41. Through groove; 42. Fixing seat; 43. First limiting component; 44. Second limiting component; 45. Threaded hole; 46. Screw; 47. First groove; 48. Threaded groove; 401. Cavity; 402. Fixing sleeve; 403. Limiting hole; 404. Fixing plate; 405. First spring; 406. Limiting sleeve; 5. Buffer assembly; 51. First buffer component; 52. Second buffer component; 501. Second groove; 502. Fixing plate; 503. Slider; 504. Rubber pad; 505. Damping seat; 506. Second spring; 507. Support ring; 6. Copper plate; 7. Fixing frame; 8. Connecting block. Detailed Implementation

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0024] Embodiment one

[0025] Please refer to Figure 1 - Figure 3 , one kind of convenient installation's anti-electromagnetic interference shield cover in the drawing, including base 1 and shield cover body 2, the connecting place of the adjacent face of shield cover body 2 is bonded with copper plate 6 for conducting electricity, by the electrification of copper plate 6, makes the surface of shield cover body 2 form faraday cage, when shield cover body 2 is in external electric field, the free electron in the conductor will redistribute under the action of electric field, when reaching electrostatic balance, the electric field intensity in the conductor is zero, for faraday cage, the electric force line of external electric field will terminate on the outer surface of cage, and will not penetrate to the inside of cage, thereby preventing electromagnetic interference, shield cover body 2 is located at the top of base 1, shield cover body 2 bottom integral setting has bottom plate 3, bottom plate 3 is attached in the top of base 1, shield cover body 2 top fixedly provided with the fixed frame 7 for taking shield cover body 2, pull fixed frame 7 to drive bottom plate 3, bottom plate 3 moves vertically on fixed seat 42, shield cover body 2 is taken down, it is convenient for technical personnel to take out shield cover body 2, thereby it is convenient for technical personnel to check the equipment failure;

[0026] Quick-release assembly 4 is inserted in bottom plate 3, for installing shield cover body 2;

[0027] The quick release assembly 4 comprises a fixing seat 42 slidably connected to the bottom plate 3, the fixing seat 42 is provided with four groups and symmetrically arranged on both sides of the bottom plate 3, the bottom plate 3 is provided with a through groove 41 for the fixing seat 42 to slide, the base 1 is provided with a first recess 47 for the fixing seat 42 to insert, the fixing seat 42 is threadedly connected with a screw rod 46, the fixing seat 42 is provided with a threaded hole 45 matched with the screw rod 46, the first recess 47 is provided with a threaded groove 48 matched with the screw rod 46, when the gap between the limiting sleeve 406 and the bottom plate 3 is large, the screw rod 46 is rotated, the screw rod 46 rotates in the threaded hole 45 and the threaded groove 48, the screw rod 46 moves downward in the threaded groove 48 and pushes the fixing seat 42, the fixing seat 42 moves vertically downward in the through groove 41 and the first recess 47, the fixing seat 42 is symmetrically provided with a first limiting piece 43 and a second limiting piece 44 which are the same structure on both sides, the second limiting piece 44 comprises a cavity 401 provided in the side wall of the fixing seat 42, a fixing sleeve 402 is fixedly installed in the cavity 401, a limiting hole 403 is provided in the fixing sleeve 402, a fixing disc 404 is fixedly installed in the limiting hole 403, a limiting sleeve 406 is slidably connected to the cavity 401, a first spring 405 is installed between the fixing disc 404 and the limiting sleeve 406, the limiting sleeve 406 is located above the through groove 41 and is attached to the upper surface of the bottom plate 3.

[0028] The base 1 is provided with a buffer assembly 5 for buffering the bottom plate 3, the buffer assembly 5 comprises a first buffer 51 and a second buffer 52 which are the same structure and symmetrically arranged on the upper surface of the base 1, the first buffer 51 comprises a second recess 501 provided in the upper surface of the base 1, a damping seat 505 is fixedly arranged in the second recess 501, a second spring 506 is sleeved on the top of the damping seat 505, a support ring 507 is detachably installed on the top of the second spring 506, a fixed plate 502 is fixedly arranged on the top of the support ring 507, a connecting block 8 is fixedly arranged on the bottom of the bottom plate 3 and is inserted into the second recess 501 and located above the fixed plate 502, the fixed plate 502 is slidably connected in the second recess 501, a rubber pad 504 for buffering is attached to the top of the fixed plate 502, a sliding block 503 is symmetrically fixedly arranged on both sides of the fixed plate 502, a sliding groove 508 matched with the sliding block 503 is provided in the inner wall of the second recess 501, the sliding block 503 on the fixed plate 502 vertically slides in the sliding groove, the sliding groove limits the fixed plate 502 through the sliding block 503, preventing the fixed plate 502 from being angularly deviated, causing the second spring 506 to be angularly changed and affecting the fatigue degree of the second spring 506, thereby reducing the service life of the second spring 506.

[0029] Working principle: in use, the bottom plate 3 is attached to the top of the base 1, and the limiting sleeve 406 on both sides of the fixing seat 42 is pressed synchronously, the limiting sleeve 406 extrudes the first spring 405, the first spring 405 moves in the limiting hole 403, the fixing disc 404 supports the first spring 405, after the first spring 405 is deformed, the limiting sleeve 406 moves into the cavity 401, the bottom plate 3 moves vertically on the fixing seat 42 through the through slot 41, and the shielding cover body 2 is removed, when it is needed to install the shielding cover body 2, the through slot 41 on the bottom plate 3 is inserted on the fixing seat 42, the limiting sleeve 406 on both sides of the fixing seat 42 is pressed synchronously, the limiting sleeve 406 moves into the cavity 401, when the bottom plate 3 moves to the bottom of the limiting sleeve 406, the counterforce generated by the first spring 405 reversely pushes the limiting sleeve 406, the limiting sleeve 406 moves out of the cavity 401 and is attached to the upper surface of the bottom plate 3, and the limiting sleeve 406 limits the bottom plate 3, so that the installation of the shielding cover body 2 is completed, and through the quick release assembly 4, the problem that the shielding cover is inconvenient to install and affects the troubleshooting of the equipment by the technical personnel is solved;

[0030] When the shielding cover body 2 is impacted, the shielding cover body 2 transmits the force to the connecting block 8 through the bottom plate 3, the connecting block 8 extrudes the rubber pad 504 and pushes the fixing plate 502, when the rubber pad 504 is subjected to external force, the rubber pad 504 can be deformed, such as stretching and bending, so as to preliminarily buffer, the fixing plate 502 extrudes the second spring 506 through the supporting ring 507, the second spring 506 is deformed to buffer, and the damping seat 505 provides damping for the second spring 506, so as to secondarily buffer, through the two times of buffering, the impact force generated when the shielding cover body 2 is impacted is prevented from being transmitted to the elements inside the shielding cover body 2.

[0031] It should be noted that, in the present text, relational terms such as first and second and the like are used merely to differentiate one entity or action from another, without necessarily requiring or implying any actual such relationship or order between or among the entities or actions. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic interference shield which is easy to install, comprising a base (1) and a shield body (2), characterized in that: The shielding cover (2) is located on the top of the base (1), and the bottom of the shielding cover (2) is integrally formed with a bottom plate (3) which is attached to the top of the base (1); The bottom plate (3) is inserted with a quick release assembly (4) for installing the shielding cover (2); The base (1) is provided with a buffer assembly (5) for buffering the bottom plate (3); The quick release assembly (4) includes a fixed seat (42) which is slidingly connected to the bottom plate (3), the fixed seat (42) is provided with four groups and symmetrically arranged on both sides of the bottom plate (3), the bottom plate (3) is provided with a through slot (41) for the sliding of the fixed seat (42), the base (1) is provided with a first recess (47) for the insertion of the fixed seat (42), the fixed seat (42) is symmetrically provided with a first limiting piece (43) and a second limiting piece (44) which are the same structure on both sides, the second limiting piece (44) includes a cavity (401) which is opened on the side wall of the fixed seat (42), the cavity (401) is fixedly installed with a fixed sleeve (402), the fixed sleeve (402) is provided with a limiting hole (403) therein, the limiting hole (403) is fixedly installed with a fixed disc (404), and the cavity (401) is slidingly connected with a limiting sleeve (406), and the fixed disc (404) and the limiting sleeve (406) are installed with a first spring (405) therebetween.

2. The easily installed electromagnetic interference shielded enclosure of claim 1, wherein: The buffer assembly (5) includes a first buffer (51) and a second buffer (52) which are symmetrically arranged on the upper surface of the base (1) and are the same structure, the first buffer (51) includes a second recess (501) which is opened on the upper surface of the base (1), the second recess (501) is fixedly provided with a damping seat (505), the damping seat (505) is sleeved with a second spring (506) on the top, the second spring (506) is detachably installed with a support ring (507) on the top, the support ring (507) is fixedly provided with a fixed plate (502) on the top, the bottom plate (3) is fixedly provided with a connecting block (8), the connecting block (8) is inserted into the second recess (501) and the connecting block (8) is located above the fixed plate (502), the fixed plate (502) is slidingly connected in the second recess (501), and the fixed plate (502) is bonded with a rubber pad (504) for buffering on the top.

3. The easily installed electromagnetic interference shield of claim 1, wherein: The limiting sleeve (406) is located above the through slot (41), and the limiting sleeve (406) is attached to the upper surface of the bottom plate (3).

4. The easily installed electromagnetic interference shield of claim 1, wherein: The fixed seat (42) is threadedly connected with a screw rod (46), the fixed seat (42) is provided with a threaded hole (45) which is adapted to the screw rod (46), and the first recess (47) is provided with a threaded groove (48) which is adapted to the screw rod (46).

5. The easily installed electromagnetic interference shield of claim 1, wherein: The adjacent surfaces of the shielding cover (2) are bonded with copper plates (6) for conducting electricity.

6. The easily installed electromagnetic interference shield of claim 1, wherein: The top of the shielding cover (2) is fixedly provided with a fixed frame (7) for accessing the shielding cover (2). The top of the shielding cover (2) is fixedly provided with a fixed frame (7) for accessing the shielding cover (2).

7. The easily installed electromagnetic interference shield of claim 2, wherein: The fixed plate (502) is symmetrically provided with a sliding block (503) on both sides, and the inner wall of the second groove (501) is provided with a sliding groove (508) matched with the sliding block (503).

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