A PCB motherboard with electromagnetic interference protection

Abstract

This invention provides a PCB motherboard for electromagnetic interference protection, belonging to the field of PCB motherboards. It includes a protective shell and a PCB motherboard, with the PCB motherboard fixedly connected inside the protective shell. The surface of the protective shell is provided with protective components, and the surface of the protective components is provided with anti-push components. This invention utilizes a triangular plate, which tilts the vertical plate by moving it. The electromagnetic shielding layer then slides, moving the arc plate to the surface of the slide rail until the bottom of the electromagnetic shielding layer abuts against the top of the protective shell, thus completing the installation of the electromagnetic interference protection structure. This eliminates the need for repeated rotation of nuts and bolts, avoiding excessive tightening force that could damage the substrate and the anti-shielding structure. It solves the problems of low efficiency and easy damage to the substrate surface during the disassembly and assembly of existing PCB anti-electromagnetic interference structures.

Description

Technical Field

[0001] This utility model relates to the field of PCB motherboards, and more specifically, to a PCB motherboard that is protected against electromagnetic interference. Background Technology

[0002] A PCB (Printed Circuit Board) is an insulating board used to connect and support electronic components. Electrical connections and signal transmission between these components are achieved by laying metal traces on the insulating substrate. It provides physical support for various components in electronic devices, allowing them to be fixed in specific positions. Since the PCB itself does not have electromagnetic interference (EMI) protection, EMI shielding structures are usually installed around it to ensure its proper functioning and prevent magnetic fields from affecting its operation.

[0003] However, existing electromagnetic interference (EMI) suppression devices typically use bolts and nuts for connection. To ensure the device's airtightness, bolts and nuts are usually installed around the entire EMI suppression device. Therefore, disassembling and assembling the EMI suppression device requires tightening multiple sets of bolts and nuts, which is time-consuming and inefficient. Furthermore, the use of threads for fixing makes it difficult to control the tightening force; excessive tightening force on one end can easily damage the substrate and the shielding structure. How to solve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a PCB motherboard that is resistant to electromagnetic interference, aiming to solve the problems that the existing PCB anti-electromagnetic interference structure has low work efficiency during disassembly and assembly, and is prone to causing damage to the surface of the substrate.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a PCB motherboard for electromagnetic interference protection, including a protective shell and a PCB motherboard. The protective shell is made of electromagnetic interference protection material, and the PCB motherboard is fixedly connected to the inside of the protective shell. The surface of the protective shell is provided with a protective component, and the surface of the protective component is provided with a reverse push component.

[0007] The protective assembly includes an electromagnetic shielding layer, a slide rail, an arc plate, a vertical plate, a triangular plate, and a slot. The electromagnetic shielding layer is disposed on the top of the protective shell, the slide rail is formed on the outer wall of the protective shell, the arc plate is fixedly connected to the bottom of the electromagnetic shielding layer, the vertical plate is fixedly connected to the top of the protective shell, the triangular plate is fixedly connected to the top of the vertical plate, and the slot is formed on the surface of the electromagnetic shielding layer.

[0008] Preferably, the arc plate is located on the surface of the slide rail, and the arc plate is slidably connected to the slide rail.

[0009] By adopting the above technical solution, the electromagnetic shielding layer can be moved by sliding, allowing the arc plate to move to the surface of the slide rail.

[0010] Preferably, the vertical plate is a plastic plate, and the triangular plate is located on top of the electromagnetic shielding layer.

[0011] By adopting the above technical solution, the vertical plate made of plastic can be slightly tilted and automatically return to its original position after the external force is stopped. The triangular plate can limit the electromagnetic shielding layer and ensure the connection between the electromagnetic shielding layer and the protective shell.

[0012] Preferably, the vertical plate is located inside the slot and engages with the slot.

[0013] By adopting the above technical solution, after the electromagnetic shielding layer moves to the top of the protective shell, the vertical plate will be inserted into the slot, so that the triangular plate is located on the top of the electromagnetic shielding layer and the bottom of the triangular plate is in contact with the top of the electromagnetic shielding layer.

[0014] Preferably, the reverse thrust assembly includes a groove, a housing, a slide rod, a sealing gasket, and a spring. The groove is formed on the top of the protective housing, the housing is fixedly connected to the bottom of the electromagnetic shielding layer, the slide rod is installed on the bottom of the housing, the sealing gasket is fixedly connected to the bottom end of the slide rod, and the spring is fixedly connected to the top of the inner wall of the housing.

[0015] Preferably, the top end of the slide rod passes through the bottom end of the housing and extends into the interior of the housing. The slide rod is slidably connected to the housing, and the sealing gasket is located inside the groove and contacts the inner wall of the groove.

[0016] By adopting the above technical solution, the slide bar can slide inside the outer shell. When the sealing gasket moves inside the groove, it will compress the air inside the groove, thereby buffering the electromagnetic shielding layer.

[0017] Preferably, the bottom of the spring is fixedly connected to one end of the slide rod that extends into the housing.

[0018] By adopting the above technical solution, when the compressed air inside the groove pushes the sealing gasket to reset, the slide rod will push the electromagnetic shielding layer to rise through the spring and the outer shell.

[0019] The beneficial effects of this utility model are:

[0020] 1. By moving the triangular plate, the vertical plate is tilted. At this time, the electromagnetic shielding layer can slide and move the arc plate to the surface of the slide rail until the bottom of the electromagnetic shielding layer abuts against the top of the protective shell, thus completing the installation of the anti-electromagnetic interference structure. This eliminates the need for multiple rotations of the nuts and bolts and avoids the problem of damage to the substrate and anti-shielding structure caused by excessive tightening force. It solves the problem of low work efficiency and easy damage to the surface of the substrate when disassembling and assembling the existing anti-electromagnetic interference structure of PCB board.

[0021] 2. Driven by the electromagnetic shielding layer, the sealing gasket enters the groove and compresses the air inside the groove. When the triangular plate separates from the electromagnetic shielding layer, the compressed air inside the groove will push the electromagnetic shielding layer up through the sealing gasket, sliding rod, and outer shell, and separate it from the protective shell, facilitating the subsequent replacement of the electromagnetic shielding layer. At the same time, as the sealing gasket slides inside the groove, it can compress the air inside the groove, thereby buffering the installation of the electromagnetic shielding layer and avoiding large collisions between the electromagnetic shielding layer and the protective shell, which could lead to surface damage. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a PCB motherboard for electromagnetic interference protection provided by an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram showing the overall structure of a PCB motherboard for electromagnetic interference protection provided by an embodiment of this utility model.

[0025] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 4 This is a partially enlarged schematic diagram of the internal structure of a PCB motherboard for electromagnetic interference protection, provided by an embodiment of this utility model.

[0027] In the diagram: 1. Protective shell; 2. PCB motherboard; 3. Protective components; 301. Electromagnetic shielding layer; 302. Slide rail; 303. Arc plate; 304. Vertical plate; 305. Triangular plate; 306. Slot; 4. Reverse push component; 401. Groove; 402. Outer shell; 403. Slide rod; 404. Sealing gasket; 405. Spring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Reference Figures 1-4 An electromagnetic interference-resistant PCB motherboard includes a protective shell 1 and a PCB motherboard 2. The protective shell 1 is made of electromagnetic interference-resistant material. The PCB motherboard 2 is fixedly connected to the inside of the protective shell 1. A protective component 3 is provided on the surface of the protective shell 1, and a reverse push component 4 is provided on the surface of the protective component 3.

[0030] The protective component 3 includes an electromagnetic shielding layer 301, a slide rail 302, an arc plate 303, a vertical plate 304, a triangular plate 305, and a slot 306. The electromagnetic shielding layer 301 is disposed on the top of the protective shell 1. The slide rail 302 is formed on the outer wall of the protective shell 1. The arc plate 303 is fixedly connected to the bottom of the electromagnetic shielding layer 301 and is located on the surface of the slide rail 302. The arc plate 303 is slidably connected to the slide rail 302, and the electromagnetic shielding layer 301 can be moved by sliding, so that the arc plate 303 moves to the surface of the slide rail 302. The vertical plate 304 is fixedly connected to the top of the protective shell 1. The vertical plate 304 is made of plastic and can be slightly tilted and stopped. After external force is applied, it automatically recovers. The triangular plate 305 is fixedly connected to the top of the vertical plate 304. The triangular plate 305 is located at the top of the electromagnetic shielding layer 301. The setting of the triangular plate 305 can limit the electromagnetic shielding layer 301 and ensure the connection effect between the electromagnetic shielding layer 301 and the protective shell 1. The slot 306 is opened on the surface of the electromagnetic shielding layer 301. The vertical plate 304 is located inside the slot 306 and is engaged with the slot 306. After the electromagnetic shielding layer 301 moves to the top of the protective shell 1, the vertical plate 304 will be engaged inside the slot 306, so that the triangular plate 305 is located at the top of the electromagnetic shielding layer 301 and the bottom of the triangular plate 305 is in contact with the top of the electromagnetic shielding layer 301.

[0031] By moving the triangular plate 305, the vertical plate 304 is tilted. At this time, the electromagnetic shielding layer 301 can slide and move the arc plate 303 to the surface of the slide rail 302 until the bottom of the electromagnetic shielding layer 301 abuts against the top of the protective shell 1, thus completing the installation of the anti-electromagnetic interference structure. This eliminates the need to rotate the nuts and bolts multiple times and avoids the problem of damage to the substrate and anti-shielding structure caused by excessive tightening force. It solves the problem of low work efficiency and easy damage to the surface of the substrate when disassembling and assembling the existing anti-electromagnetic interference structure of PCB board.

[0032] The reverse thrust assembly 4 includes a groove 401, a housing 402, a slide rod 403, a sealing gasket 404, and a spring 405. The groove 401 is formed on the top of the protective housing 1. The housing 402 is fixedly connected to the bottom of the electromagnetic shielding layer 301. The slide rod 403 is installed on the bottom of the housing 402. The top end of the slide rod 403 penetrates through the bottom end of the housing 402 and extends into the interior of the housing 402. The slide rod 403 is slidably connected to the housing 402 and can slide inside the housing 402. The sealing gasket 404 is fixedly connected to the bottom end of the slide rod 403 and is located in the groove. The sealing gasket 404 moves inside the groove 401 and contacts the inner wall of the groove 401. When the sealing gasket 404 moves inside the groove 401, it compresses the air inside the groove 401, thereby buffering the electromagnetic shielding layer 301. The spring 405 is fixedly connected to the top of the inner wall of the outer shell 402. The bottom of the spring 405 is fixedly connected to one end of the slide rod 403 that extends into the outer shell 402. When the compressed air inside the groove 401 pushes the sealing gasket 404 to reset, the slide rod 403 will push the electromagnetic shielding layer 301 to rise through the spring 405 and the outer shell 402.

[0033] Driven by the electromagnetic shielding layer 301, the sealing gasket 404 enters the interior of the groove 401, compressing the air inside the groove 401. When the triangular plate 305 separates from the electromagnetic shielding layer 301, the compressed air inside the groove 401 will push the electromagnetic shielding layer 301 up through the sealing gasket 404, the sliding rod 403, and the outer shell 402, and separate it from the protective shell 1, facilitating the subsequent replacement of the electromagnetic shielding layer 301. At the same time, while the sealing gasket 404 slides inside the groove 401, it can compress the air inside the groove 401, thereby buffering the installation of the electromagnetic shielding layer 301 and preventing large collisions between the electromagnetic shielding layer 301 and the protective shell 1, which could lead to surface damage.

[0034] The working principle of this electromagnetic interference-proof PCB motherboard is as follows: When it is necessary to disassemble the electromagnetic interference-proof structure, by moving the two triangular plates 305, the triangular plates 305 drive the vertical plate 304 to tilt at an angle, so that the triangular plates 305 separate from the electromagnetic shielding layer 301. At this time, the compressed air inside the groove 401 will push the sealing gasket 404 to reset, so that the sealing gasket 404 pushes the spring 405 to move through the slide rod 403. The spring 405 pushes the electromagnetic shielding layer 301 to rise, so that the electromagnetic shielding layer 301 separates from the protective shell 1, thus completing the disassembly of the electromagnetic interference-proof structure.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A PCB motherboard for electromagnetic interference protection, comprising a protective shell (1) and a PCB motherboard (2), wherein the protective shell (1) is made of an electromagnetic interference protection material, and the PCB motherboard (2) is fixedly connected to the interior of the protective shell (1), characterized in that: The protective shell (1) is provided with a protective component (3) on its surface, and the protective component (3) is provided with a reverse thrust component (4) on its surface. The protective component (3) includes an electromagnetic shielding layer (301), a slide rail (302), an arc plate (303), a vertical plate (304), a triangular plate (305), and a slot (306). The electromagnetic shielding layer (301) is disposed on the top of the protective shell (1). The slide rail (302) is opened on the outer wall of the protective shell (1). The arc plate (303) is fixedly connected to the bottom of the electromagnetic shielding layer (301). The vertical plate (304) is fixedly connected to the top of the protective shell (1). The triangular plate (305) is fixedly connected to the top of the vertical plate (304). The slot (306) is opened on the surface of the electromagnetic shielding layer (301).

2. The PCB motherboard for electromagnetic interference protection according to claim 1, characterized in that: The arc plate (303) is located on the surface of the slide rail (302), and the arc plate (303) is slidably connected to the slide rail (302).

3. The PCB motherboard for electromagnetic interference protection according to claim 2, characterized in that: The vertical plate (304) is a plastic plate, and the triangular plate (305) is located on top of the electromagnetic shielding layer (301).

4. The PCB motherboard for electromagnetic interference protection according to claim 3, characterized in that: The vertical plate (304) is located inside the slot (306) and is engaged with the slot (306).

5. A PCB motherboard for electromagnetic interference protection according to claim 4, characterized in that: The reverse thrust assembly (4) includes a groove (401), a housing (402), a slide rod (403), a sealing gasket (404), and a spring (405). The groove (401) is formed on the top of the protective housing (1). The housing (402) is fixedly connected to the bottom of the electromagnetic shielding layer (301). The slide rod (403) is installed on the bottom of the housing (402). The sealing gasket (404) is fixedly connected to the bottom end of the slide rod (403). The spring (405) is fixedly connected to the top of the inner wall of the housing (402).

6. A PCB motherboard for electromagnetic interference protection according to claim 5, characterized in that: The top end of the slide rod (403) penetrates the bottom end of the outer shell (402) and extends into the interior of the outer shell (402). The slide rod (403) is slidably connected to the outer shell (402). The sealing gasket (404) is located inside the groove (401) and contacts the inner wall of the groove (401).

7. A PCB motherboard for electromagnetic interference protection according to claim 6, characterized in that: The bottom of the spring (405) is fixedly connected to one end of the slide bar (403) that extends into the housing (402).

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