A radio frequency shielding cover of a circuit board

Abstract

The utility model relates to electronic equipment structure technical field discloses a kind of circuit board radio frequency shielding cover of quick dismounting, including circuit board body, shielding cover body, rotating assembly and fixed assembly, the rotating assembly includes the fixed seat of being fixed in circuit board body, rotating shaft and the rotating seat of being fixed in one side of shielding cover body, so that shielding cover body can overturn around rotating shaft;The fixed assembly is used for locking the other side of shielding cover body, and it includes the U-shaped elastic metal buckle of being fixed in rotating seat, the mounting bracket and the card slot for the buckle of being provided on shielding cover body Card joint, still include the first magnet and second magnet respectively provided on circuit board body and shielding cover body.The utility model is through the synergic effect of rotating assembly and mechanical, magnetic attraction double fixed assembly, realized when overhaul can overturn open, double mode when necessary can be completely disassembled, convenient operation, effectively avoid the repeated wear of mechanical buckle, improve the maintainability and reliability of product.

Description

Technical Field

[0001] This utility model relates to the field of electronic device structure technology, and in particular to a circuit board radio frequency shielding cover that can be quickly disassembled and installed. Background Technology

[0002] In modern high-density, high-frequency electronic devices, electronic components on circuit boards generate electromagnetic radiation and are also susceptible to interference from external electromagnetic waves. To ensure the stability and reliability of the circuit, radio frequency shielding covers are usually installed in critical areas of the circuit board to enclose sensitive components or radiation sources and achieve electromagnetic isolation.

[0003] Currently, RF shielding covers for circuit boards are commonly secured using metal clips. This structure typically involves pre-soldering a metal enclosure (shielding frame) onto the circuit board, with multiple elastic locking points along the edges of the shielding cover. During installation, the shielding cover is pressed into the slots of the shielding frame one by one. This method provides a robust mechanical connection, ensuring that the shielding cover will not loosen due to vibration or impact during equipment transportation or long-term use, thus guaranteeing good grounding and shielding performance.

[0004] However, during product manufacturing, debugging, post-production maintenance, or functional upgrades, it is often necessary to frequently open or remove the shielding cover to test, repair, or replace the internal electronic components. In such cases, the drawbacks of traditional snap-on shielding covers become apparent. Operators must use specialized tools to carefully pry open each clip one by one. This process is not only time-consuming and labor-intensive, but also highly susceptible to plastic deformation of the clips or the shielding cover itself due to improper operation, potentially damaging other components on the circuit board. Repeated disassembly and reassembly can cause deformed clips, preventing the shielding cover from tightly reassembling, resulting in gaps that severely affect its electromagnetic shielding effectiveness, or even cause it to fail completely.

[0005] Therefore, this utility model proposes a circuit board radio frequency shield that can be quickly installed and removed to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a circuit board RF shield that can be quickly disassembled and assembled. It aims to improve and solve the technical problem that the existing circuit board RF shield has a mechanical buckle structure that is prone to wear and failure due to repeated disassembly and assembly when frequent maintenance is required. The operation is cumbersome and it is difficult to simultaneously meet the high reliability of long-term fixation and the convenience of temporary maintenance.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a circuit board radio frequency shielding cover that can be quickly disassembled and assembled, comprising a circuit board body and a shielding cover body; and further comprising a rotating component and a fixing component.

[0008] The rotating assembly includes a fixed base fixedly connected to the circuit board body, a rotating shaft disposed within the fixed base, and a rotating seat rotatably sleeved on the rotating shaft. The rotating seat drives the shield body to rotate around the rotating shaft.

[0009] The fixing assembly is used to detachably lock the other side of the shield body to the circuit board body. The fixing assembly includes a U-shaped elastic metal buckle fixed to the rotating seat; a mounting bracket corresponding to the U-shaped elastic metal buckle on the shield body, the mounting bracket having a slot for the U-shaped elastic metal buckle to engage; a first magnet fixed to the circuit board body; and a fixing post fixed to the shield body, the fixing post having a second magnet embedded therein that is magnetically attracted to the first magnet.

[0010] Preferably, the rotating assembly further includes a torsion spring, which is arranged around the rotating shaft, and the two ends of the torsion spring act on the fixed seat and the rotating seat respectively.

[0011] Preferably, the fixing component further includes a lever for driving the U-shaped elastic metal buckle to disengage from the slot.

[0012] Preferably, the U-shaped elastic metal buckle includes two elastic arms, the free ends of which are bent outward to form a snap-fit ​​portion for engaging with the slot.

[0013] Preferably, the lever abuts between the inner surfaces of the two elastic arms of the U-shaped elastic metal buckle.

[0014] Preferably, the fixing post is located at the corner of the shielding cover body, and the first magnet is fixed to the circuit board body corresponding to the fixing post.

[0015] Preferably, the fixing column is a hollow column structure, and the second magnet is housed and fixed inside the fixing column.

[0016] Preferably, the mounting bracket is a plate-shaped structure integrally stamped and extended from the side wall of the shield body.

[0017] This utility model has the following beneficial effects: 1. In this utility model, by setting a rotating component and a fixing component, the shielding cover body can be flipped open with the rotating component as the axis, or completely disassembled through the fixing component. This solves the problem that the single disassembly and assembly method of the shielding cover in the prior art is difficult to balance the convenience of high-frequency maintenance and the long-term fixed reliability. It achieves the technical effect of fast and efficient operation in different usage scenarios and improves the overall maintainability of the product.

[0018] 2. In this utility model, by setting a rotating component and cooperating with the magnetic attraction and fixing of the first magnet and the second magnet, as well as the automatic reset function of the torsion spring, the problem of wear and failure caused by frequent disassembly and assembly of the mechanical buckle of the shielding cover in the prior art is solved. It achieves the technical effect of quick opening and closing without operating the mechanical parts during temporary maintenance, avoiding structural wear, and automatic springback reset, which significantly extends the service life of the product and improves maintenance efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a circuit board radio frequency shielding cover that can be quickly disassembled and assembled according to this utility model. Figure 2 for Figure 1 Enlarged diagram of point A in the diagram; Figure 3 This is a schematic diagram of the circuit board body of a circuit board radio frequency shielding cover that can be quickly disassembled and assembled according to this utility model. Figure 4 This is a schematic diagram of the shielding body of a circuit board radio frequency shielding cover that can be quickly disassembled and assembled according to this utility model.

[0020] Legend: 1. Circuit board body; 2. Shielding cover body; 3. Fixing assembly; 301. Mounting bracket; 302. Slot; 303. U-shaped elastic metal buckle; 304. Toggle block; 305. First magnet; 306. Fixing post; 307. Second magnet; 4. Rotating assembly; 401. Fixing base; 402. Rotating shaft; 403. Rotating base; 404. Torsion spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 4 This utility model provides a circuit board RF shield that can be quickly disassembled and assembled, aiming to solve the technical problem that the existing circuit board RF shield is prone to wear and failure due to repeated disassembly and assembly when frequent maintenance is required. The mechanical buckle structure is cumbersome to operate and it is difficult to simultaneously meet the high reliability of long-term fixation and the convenience of temporary maintenance.

[0023] The quick-release RF shielding cover for the circuit board includes a circuit board body 1 and a shielding cover body 2 covering the circuit board body 1. The circuit board body 1 serves as the mounting base for the entire device, and the shielding cover body 2 is used to provide RF shielding for the electronic components on the circuit board body 1. The shielding cover body 2 is mounted and fixed to the circuit board body 1 by a rotating assembly 4 and a fixing assembly 3.

[0024] The rotating assembly 4 includes a fixed base 401, a rotating shaft 402, a rotating seat 403, and a torsion spring 404. The fixed base 401 is fixedly connected to the circuit board body 1. The rotating shaft 402 is disposed inside the fixed base 401. The rotating seat 403 is fixedly connected to one side of the shield body 2, and the rotating seat 403 is rotatably sleeved on the rotating shaft 402, so that the rotating seat 403 can drive the shield body 2 to rotate around the rotating shaft 402. The torsion spring 404 is arranged around the rotating shaft 402, and the two ends of the torsion spring 404 act on the fixed base 401 and the rotating seat 403 respectively. This arrangement allows the torsion spring 404 to store energy when the shield body 2 is flipped upward. When the external force is released, the torsion spring 404 releases energy to drive the shield body 2 to automatically reset.

[0025] The fixing component 3 is used to detachably lock the other side of the shield body 2 to the circuit board body 1. The fixing component 3 includes a U-shaped elastic metal buckle 303, a mounting bracket 301, a first magnet 305, a fixing post 306, and a second magnet 307. The U-shaped elastic metal buckle 303 is fixed to the rotating seat 403. The mounting bracket 301 is set on the shield body 2 corresponding to the U-shaped elastic metal buckle 303, and a slot 302 is opened on the mounting bracket 301. The free end of the U-shaped elastic metal buckle 303 can be elastically inserted into the slot 302 to achieve mechanical locking. The first magnet 305 is fixed to the circuit board body 1, the fixing post 306 is fixed to the shield body 2, and the second magnet 307 is embedded in the fixing post 306. When the shield body 2 is closed, the second magnet 307 and the first magnet 305 are magnetically attracted to each other to provide auxiliary fixing force.

[0026] In a preferred embodiment, to facilitate the unlocking of the U-shaped elastic metal buckle 303 from the slot 302, the fixing component 3 further includes a lever 304. The lever 304 is used to drive the U-shaped elastic metal buckle 303 to disengage from the slot 302. Specifically, the lever 304 abuts between the inner surfaces of the two elastic arms of the U-shaped elastic metal buckle 303. By pressing or flicking the lever 304, the two elastic arms can be brought closer together, thereby achieving quick unlocking.

[0027] As another preferred embodiment, in order to optimize the snapping performance of the U-shaped elastic metal buckle 303, the U-shaped elastic metal buckle 303 includes two elastic arms, the free ends of which are bent outward to form a snapping part for snapping into the slot 302. This structure makes the buckle have good guidance when snapped in and can provide reliable locking force after it is snapped in.

[0028] As another preferred embodiment, the fixing post 306 is disposed at the corner of the shielding cover body 2, and the first magnet 305 is fixed to the circuit board body 1 corresponding to the fixing post 306. The corner position can provide more stable support and adsorption force.

[0029] As another preferred embodiment, in order to protect the second magnet 307 and simplify installation, the fixing post 306 is a hollow column structure, and the second magnet 307 is housed and fixed inside the fixing post 306. This design not only protects the magnet from physical damage, but also makes the assembly process more convenient.

[0030] As another preferred embodiment, in order to improve the structural strength and production efficiency of the mounting bracket 301, the mounting bracket 301 is a plate-shaped structure integrally stamped and extended from the side wall of the shield body 2. The integral molding method reduces the welding or riveting process and improves the overall reliability and consistency.

[0031] Working principle: During complete installation, align the shielding cover body 2 with the electronic component area on the circuit board body 1 and press down. The mounting bracket 301 on the shielding cover body 2 contacts the U-shaped elastic metal clip 303. The elastic arm of the U-shaped elastic metal clip 303 deforms under pressure and eventually locks into the slot 302 in the mounting bracket 301, completing the mechanical locking. At the same time, the second magnet 307 on the shielding cover body 2 and the first magnet 305 on the circuit board body 1 attract each other and fix each other, completing the entire installation process. During complete disassembly, operate the lever 304 with your fingers or tools. The lever 304 drives the two elastic arms of the U-shaped elastic metal clip 303 to move closer together, causing the clip to disengage from the lock of the slot 302. Then the shielding cover body 2 can be removed. When temporary maintenance is required on components beneath the shielding cover body 2, there is no need to operate the lever 304. Simply push the edge of the shielding cover body 2 gently to overcome the magnetic attraction between the first magnet 305 and the second magnet 307. Then, using the rotating shaft 402 within the rotating assembly 4 as a fulcrum, flip the shielding cover body 2 upwards to open it. During the flipping process, the torsion spring 404 stores energy as the rotating seat 403 rotates. After maintenance, release the shielding cover body 2, and the torsion spring 404 releases the stored elastic potential energy, causing the rotating seat 403 and the shielding cover body 2 to automatically spring back to their original positions around the rotating shaft 402. After resetting, the first magnet 305 and the second magnet 307 are re-attracted and fixed.

Claims

1. A quick-release RF shielding cover for a circuit board, comprising a circuit board body (1) and a shielding cover body (2), characterized in that, The circuit board radio frequency shield also includes a rotating component (4) and a fixing component (3); The rotating assembly (4) includes a fixed base (401) fixedly connected to the circuit board body (1), a rotating shaft (402) disposed in the fixed base (401), and a rotating seat (403) rotatably sleeved on the rotating shaft (402). The rotating seat (403) drives the shield body (2) to rotate around the rotating shaft (402). The fixing component (3) is used to detachably lock the other side of the shield body (2) to the circuit board body (1), and the fixing component (3) includes: U-shaped elastic metal buckle (303) fixed to the rotating seat (403); The mounting bracket (301) corresponding to the U-shaped elastic metal buckle (303) is provided on the shield body (2), and the mounting bracket (301) has a slot (302) for the U-shaped elastic metal buckle (303) to be engaged. A first magnet (305) is fixed to the circuit board body (1); And a fixing post (306) fixed to the shield body (2), wherein the fixing post (306) is fitted with a second magnet (307) that is magnetically attracted to the first magnet (305).

2. The quick-release RF shielding cover for a circuit board according to claim 1, characterized in that: The rotating assembly (4) also includes a torsion spring (404) which is arranged around the rotating shaft (402), and the two ends of the torsion spring (404) act on the fixed seat (401) and the rotating seat (403) respectively.

3. The quick-release RF shielding cover for a circuit board according to claim 1, characterized in that: The fixing component (3) further includes a lever (304) for driving the U-shaped elastic metal buckle (303) to disengage from the slot (302).

4. The quick-release RF shielding cover for a circuit board according to claim 1, characterized in that: The U-shaped elastic metal buckle (303) includes two elastic arms, the free ends of which are bent outward to form a snap-fit ​​portion for snapping into the slot (302).

5. The quick-release RF shielding cover for a circuit board according to claim 3, characterized in that: The lever (304) abuts against the inner surfaces of the two elastic arms of the U-shaped elastic metal buckle (303).

6. The quick-release RF shielding cover for a circuit board according to claim 1, characterized in that: The fixing post (306) is located at the corner of the shield body (2), and the first magnet (305) is fixed to the circuit board body (1) corresponding to the fixing post (306).

7. The quick-release RF shielding cover for a circuit board according to claim 1, characterized in that: The fixing column (306) is a hollow column structure, and the second magnet (307) is housed and fixed inside the fixing column (306).

8. The quick-release RF shielding cover for a circuit board according to claim 1, characterized in that: The mounting bracket (301) is a plate-shaped structure integrally stamped and extended from the side wall of the shield body (2).

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