Anti-interference multilayer circuit board

Abstract

The utility model provides an anti-interference multilayer circuit board, comprising a circuit board, the side surface of the circuit board is fixedly connected with a connecting block, the connecting block is provided with a lock hole, the top of the circuit board is provided with a top frame, the top frame is provided with meshes, the middle part of the top frame is provided with a bearing, the bearing is internally provided with a screw rod, and the screw rod is provided with a screw hole. The utility model has the advantages that the top frame and the bottom frame which are made of copper materials are adopted to form a structure similar to a copper net on the outer side of the circuit board, the circuit board is wrapped in the structure, and the anti-interference capability of the circuit board is improved. The top frame is provided with a plurality of meshes, so that the weight and the copper content of the top frame can be reduced by the meshes, and heat generated by the working of the circuit board can be quickly dissipated outwards conveniently. The arrangement of the air holes can enable the heat at the bottom of the circuit board to be dissipated outwards, thereby guaranteeing the heat dissipation effect of the circuit board. The structure is simple, the cost is low, the heat dissipation effect of the circuit board is better, and the practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of multilayer circuit boards, in particular to an anti-interference multilayer circuit board. Background Art

[0002] A multilayer circuit board, also known as a multilayer board, is a circuit board composed of multiple conductive layers and dielectric layers. A multilayer circuit board has at least three conductive layers, two of which are located on the outer surface, while the third layer is synthesized inside the insulating board. The electrical connection between them is usually achieved through plated through holes on the cross section of the circuit board.

[0003] For example, an anti-interference multilayer circuit board with publication number CN219919459U can achieve isolation from external battery interference by setting a copper shell, a copper cover, heat dissipation holes, baffles, blocks and dustproof nets, and by setting a copper protection structure on the outside of the multilayer circuit board, thereby improving the anti-interference effect of the multilayer circuit board. However, wrapping the multilayer circuit board with a copper shell and a copper cover is not only expensive, but also the circuit board is in a relatively closed space, and the heat generated during operation needs to be dissipated by a fan or other means, which affects the use of the circuit board. For this reason, an anti-interference multilayer circuit board is proposed for improvement. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the present invention is to provide an anti-interference multi-layer circuit board to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides an anti-interference multilayer circuit board, comprising a circuit board, a connection block is fixedly connected to the side of the circuit board, a lock hole is opened on the connection block, a top frame is arranged on the top of the circuit board, a mesh hole is opened on the top frame, a bearing is arranged in the middle of the top frame, a screw rod is arranged in the bearing, a rotating wheel is fixedly connected to the top of the screw rod, a rectangular sleeve is fixedly connected to the bottom surface of the top frame, a threaded cylinder is threadedly connected to the outer side of the screw rod, a pressure plate is fixedly connected to the bottom end of the threaded cylinder, and an upper locking buckle is fixedly connected to the side of the top frame;

[0007] A bottom frame is arranged at the bottom of the circuit board, air holes are opened on the bottom surface of the bottom frame, and a lower locking buckle is fixedly connected to the side surface of the bottom frame.

[0008] Preferably, any of the above schemes is that the circuit board consists of an upper layer board, a middle layer board and a lower layer board, and the connection block is arranged on the side of the middle layer board, and there are a plurality of the connection blocks.

[0009] Preferably, any of the above solutions has two locking holes on each of the connection blocks, and the top frame and the bottom frame are made of copper.

[0010] The above technical solution is adopted: the upper and lower layers of the circuit board are located on the outer surface, while the middle layer is integrated into the insulating board. The electrical connection between them is achieved through the plated through holes on the cross section of the circuit board. The connecting block is used to connect the top frame and the bottom frame. The lock hole opened on it can cooperate with the upper lock buckle and the lower lock buckle to fix the top frame and the bottom frame. Several connecting blocks are arranged on the side of the circuit board to ensure the stability of the top frame and the bottom frame when they are fixed on the circuit board. The top frame and the bottom frame, both made of copper material, form a structure similar to a copper mesh on the outside of the circuit board, which wraps the circuit board and improves the anti-interference ability of the circuit board.

[0011] Preferably, any of the above schemes has a plurality of meshes, and has two bearings which are symmetrically arranged on the top frame.

[0012] Preferably, in any of the above schemes, the rotating wheel is arranged on the upper part of the top frame, and the threaded cylinder adopts a rectangular structure.

[0013] The above technical solution is adopted: a number of mesh holes are opened on the top frame, which can reduce the weight and copper content of the top frame, and facilitate the rapid dissipation of heat generated by the circuit board. The bearing enables the screw rod to rotate on the top frame, and the rotating wheel set on the top of the screw rod can facilitate the user to rotate the screw rod. The rectangular sleeve is used to constrain and guide the threaded barrel. When the screw rod is rotated, the threaded barrel moves downward under the driving effect of the thread and the constraint of the rectangular sleeve, driving the pressure plate to move downward, and constraining the top surface of the circuit board.

[0014] Preferably, any of the above schemes is provided with a buffer pad at the bottom of the pressing plate, and the number of the upper locking buckles and the lower locking buckles is the same as the number of the connecting blocks.

[0015] Preferably, any of the above schemes is that the positions of the upper lock buckle and the lower lock buckle are arranged corresponding to the positions of the mesh holes, and a buffer pad is arranged in the bottom frame.

[0016] The above technical solution is adopted: a buffer pad is arranged at the bottom of the pressing plate to form a transition between the pressing plate and the circuit board, thereby preventing the pressing plate from wearing the circuit board. Similarly, a buffer pad is arranged in the bottom frame to prevent the bottom frame from wearing the circuit board. The upper lock buckle and the lower lock buckle can be snapped into the lock hole to fix the top frame, the bottom frame and the circuit board. The setting of the air hole can dissipate the heat at the bottom of the circuit board to the outside, thereby ensuring the heat dissipation effect of the circuit board.

[0017] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0018] 1. The anti-interference multilayer circuit board is provided with structures such as connection blocks, lock holes, top frames, mesh holes, bottom frames, and air holes, and the top frame and bottom frame are fixedly installed on the top and bottom surfaces of the circuit board by using upper lock buckles and lower lock buckles to be clamped in the lock holes. The top frame and bottom frame made of copper material form a structure similar to a copper net on the outside of the circuit board, which wraps the circuit board and improves the anti-interference ability of the circuit board. A number of mesh holes are provided on the top frame, which can reduce the weight and copper content of the top frame, and facilitate the rapid dissipation of heat generated by the circuit board. The setting of the air holes can dissipate the heat at the bottom of the circuit board to ensure the heat dissipation effect of the circuit board. The structure is simple, the cost is low, the heat dissipation effect of the circuit board is more outstanding, and the practicability is stronger.

[0019] 2. The anti-interference multilayer circuit board is provided with structures such as bearings, screw rods, wheels, rectangular sleeves, threaded cylinders and pressure plates. The screw rod is rotated. Under the pushing action of the thread and the constraint of the rectangular sleeve, the threaded cylinder moves downward, driving the pressure plate to move downward, thereby constraining the top surface of the circuit board. The circuit boards of different thicknesses can be fixed, and the applicability is stronger.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the top frame structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the bottom frame structure of the utility model;

[0025] Figure 4 It is a schematic cross-sectional structure diagram of the screw rod position of the utility model.

[0026] In the figure: 1-circuit board, 2-connecting block, 3-locking hole, 4-top frame, 5-mesh, 6-bearing, 7-screw, 8-rotating wheel, 9-rectangular sleeve, 10-threaded cylinder, 11-pressing plate, 12-upper locking buckle, 13-bottom frame, 14-air hole, 15-lower locking buckle. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figures 1 to 4 As shown, the utility model comprises a circuit board 1, a connecting block 2 is fixedly connected to the side of the circuit board 1, a lock hole 3 is opened on the connecting block 2, a top frame 4 is arranged on the top of the circuit board 1, a mesh 5 is opened on the top frame 4, a bearing 6 is arranged in the middle of the top frame 4, a screw rod 7 is arranged in the bearing 6, a rotating wheel 8 is fixedly connected to the top of the screw rod 7, a rectangular sleeve 9 is fixedly connected to the bottom surface of the top frame 4, a threaded cylinder 10 is threadedly connected to the outer side of the screw rod 7, a pressing plate 11 is fixedly connected to the bottom end of the threaded cylinder 10, and an upper locking buckle 12 is fixedly connected to the side of the top frame 4;

[0030] A bottom frame 13 is disposed at the bottom of the circuit board 1 , an air hole 14 is opened on the bottom surface of the bottom frame 13 , and a lower lock buckle 15 is fixedly connected to the side surface of the bottom frame 13 .

[0031] Embodiment 1: The circuit board 1 is composed of an upper layer board, a middle layer board and a lower layer board, and a connection block 2 is arranged on the side of the middle layer board, and there are several connection blocks 2. Two lock holes 3 are provided on each connection block 2, and the top frame 4 and the bottom frame 13 are both made of copper material. The upper layer board and the lower layer board of the circuit board 1 are located on the outer surface, and the middle layer board is synthesized in the insulating board. The electrical connection between them is achieved through the plated through holes on the cross section of the circuit board. The connection block 2 is used to connect the top frame 4 and the bottom frame 13. The lock hole 3 provided thereon can cooperate with the upper lock buckle 12 and the lower lock buckle 15 to achieve the fixation of the top frame 4 and the bottom frame 13. Several connection blocks 2 are arranged on the side of the circuit board 1 to ensure the stability of the top frame 4 and the bottom frame 13 when they are fixed on the circuit board 1. The top frame 4 and the bottom frame 13, both made of copper material, form a structure similar to a copper mesh on the outside of the circuit board 1, wrapping the circuit board 1 therein, thereby improving the anti-interference ability of the circuit board 1.

[0032] Embodiment 2: There are several mesh holes 5, and there are two bearings 6 which are symmetrically arranged on the top frame 4. The rotating wheel 8 is arranged on the upper part of the top frame 4, and the threaded barrel 10 adopts a rectangular structure. A plurality of mesh holes 5 are provided on the top frame 4, and the mesh holes 5 can reduce the weight and copper content of the top frame 4, and can also facilitate the rapid dissipation of heat generated by the operation of the circuit board. The bearing 6 enables the screw rod 7 to rotate on the top frame 4, and the rotating wheel 8 arranged on the top of the screw rod 7 can facilitate the user to rotate the screw rod 7. The rectangular sleeve 9 is used to constrain and guide the threaded barrel 10. When the screw rod 7 is rotated, under the pushing action of the thread and the constraint of the rectangular sleeve 9, the threaded barrel 10 moves downward, driving the pressure plate 11 to move downward, thereby constraining the top surface of the circuit board 1.

[0033] Embodiment 3: A buffer pad is provided at the bottom of the pressing plate 11, and the number of the upper lock buckles 12 and the lower lock buckles 15 is the same as the number of the connecting blocks 2. The positions of the upper lock buckles 12 and the lower lock buckles 15 are set corresponding to the positions of the mesh 5, and a buffer pad is provided in the bottom frame 13. The buffer pad is provided at the bottom of the pressing plate 11 to form a transition between the pressing plate 11 and the circuit board 1, thereby preventing the pressing plate 11 from wearing the circuit board 1. Similarly, the buffer pad is provided in the bottom frame 13 to prevent the bottom frame 13 from wearing the circuit board 1. The upper lock buckle 12 and the lower lock buckle 15 can be snapped into the lock hole 3 to fix the top frame 4, the bottom frame 13 and the circuit board 1. The setting of the air hole 14 can allow the heat at the bottom of the circuit board 1 to dissipate outward, thereby ensuring the heat dissipation effect of the circuit board 1.

[0034] The working principle of the utility model is as follows:

[0035] S1. Use the upper lock buckle 12 and the lower lock buckle 15 to snap into the lock hole 3, and fix the top frame 4 and the bottom frame 13 on the top and bottom surfaces of the circuit board 1. The top frame 4 and the bottom frame 13 form a structure similar to a copper mesh on the outside of the circuit board 1, wrapping the circuit board 1 therein, thereby improving the anti-interference ability of the circuit board 1;

[0036] S2, rotating the screw rod 7, under the pushing action of the thread and the constraint of the rectangular sleeve 9, the threaded cylinder 10 moves downward, driving the pressing plate 11 to move downward, constraining the top surface of the circuit board 1;

[0037] S3. The heat generated by the circuit board 1 during operation can be dissipated outwards through the mesh 5 and the air holes 14.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The anti-interference multilayer circuit board is provided with structures such as a connection block 2, a lock hole 3, a top frame 4, a mesh 5, a bottom frame 13, and an air hole 14. The top frame 4 and the bottom frame 13 are fixedly installed on the top and bottom surfaces of the circuit board 1 by using an upper lock buckle 12 and a lower lock buckle 15 to be clamped in the lock hole 3. The top frame 4 and the bottom frame 13 made of copper material form a structure similar to a copper net on the outside of the circuit board 1, which wraps the circuit board 1 therein and improves the anti-interference ability of the circuit board 1. A plurality of mesh holes 5 are provided on the top frame 4, which can reduce the weight and copper content of the top frame 4, and can also facilitate the rapid dissipation of the heat generated by the circuit board 1 during operation. The setting of the air hole 14 can dissipate the heat at the bottom of the circuit board 1 to ensure the heat dissipation effect of the circuit board 1. The structure is simple, the cost is low, the heat dissipation effect of the circuit board is more outstanding, and the practicality is stronger.

[0040] 2. The anti-interference multilayer circuit board is provided with structures such as a bearing 6, a screw rod 7, a rotating wheel 8, a rectangular sleeve 9, a threaded cylinder 10 and a pressing plate 11. The screw rod 7 is rotated. Under the pushing action of the thread and the constraint of the rectangular sleeve 9, the threaded cylinder 10 moves downward, driving the pressing plate 11 to move downward, thereby constraining the top surface of the circuit board 1. The circuit boards 1 of different thicknesses can be fixed, and the applicability is stronger.

Claims

1. An anti-interference multilayer circuit board, comprising a circuit board (1); characterized in that: A connecting block (2) is fixedly connected to the side of the circuit board (1), a locking hole (3) is provided on the connecting block (2), a top frame (4) is provided on the top of the circuit board (1), a mesh hole (5) is provided on the top frame (4), a bearing (6) is provided in the middle of the top frame (4), a screw rod (7) is provided in the bearing (6), a rotating wheel (8) is fixedly connected to the top of the screw rod (7), a rectangular sleeve (9) is fixedly connected to the bottom surface of the top frame (4), a threaded cylinder (10) is threadedly connected to the outer side of the screw rod (7), a pressing plate (11) is fixedly connected to the bottom end of the threaded cylinder (10), and an upper locking buckle (12) is fixedly connected to the side of the top frame (4); A bottom frame (13) is provided at the bottom of the circuit board (1), an air hole (14) is provided on the bottom surface of the bottom frame (13), and a lower lock buckle (15) is fixedly connected to the side surface of the bottom frame (13).

2. The anti-interference multilayer circuit board according to claim 1, characterized in that: The circuit board (1) is composed of an upper layer board, a middle layer board and a lower layer board; the connection block (2) is arranged on the side of the middle layer board, and there are a plurality of the connection blocks (2).

3. The anti-interference multilayer circuit board according to claim 2, characterized in that: Two locking holes (3) are provided on each of the connection blocks (2), and the top frame (4) and the bottom frame (13) are both made of copper material.

4. The anti-interference multilayer circuit board according to claim 3, characterized in that: There are a plurality of mesh holes (5), and there are two bearings (6) which are symmetrically arranged on the top frame (4).

5. The anti-interference multilayer circuit board according to claim 4, characterized in that: The rotating wheel (8) is arranged on the upper part of the top frame (4), and the threaded cylinder (10) adopts a rectangular structure.

6. The anti-interference multilayer circuit board according to claim 5, characterized in that: A buffer pad is provided at the bottom of the pressing plate (11), and the number of the upper locking buckles (12) and the lower locking buckles (15) is the same as the number of the connecting blocks (2).

7. The anti-interference multilayer circuit board according to claim 6, characterized in that: The positions of the upper locking buckle (12) and the lower locking buckle (15) are arranged corresponding to the positions of the mesh holes (5), and a buffer pad is arranged inside the bottom frame (13).

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