Vehicle-mounted high-reliability PCB multilayer board

Abstract

The utility model relates to the technical field of circuit boards, in particular to a vehicle-mounted high-reliability multi-layer PCB (printed circuit board). According to the technical scheme, the heat exchanger comprises a plate body, a blocking cover, an inner column and barrels, positioning holes are formed in the plate body, the barrels are arranged on the positioning holes through limiting assemblies, fins are arranged on the outer wall of the inner column at equal intervals, the fins are slidably inserted into the inner walls of the barrels respectively, the fins are made of rubber materials, and the blocking cover is arranged on the inner wall of the inner column. The two blocking covers are symmetrically arranged on the cylinder body in a threaded mode. According to the utility model, vibration reduction measures are provided for the circuit board through cooperation of the structures, the vibration reduction effect on the vehicle-mounted circuit board is obvious, and the use reliability of the circuit board is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a high-reliability multilayer PCB board for automotive applications. Background Technology

[0002] PCB stands for Printed Circuit Board, which is the support structure for electronic components. The normal operation of automobiles is inseparable from the application of circuit boards.

[0003] Cars often experience bumps and vibrations while driving. Existing circuit boards have a monotonous structure and often lack vibration damping measures during installation. This can cause the circuit boards to loosen over time due to prolonged vibration, directly affecting their normal operation.

[0004] To address this issue, we propose a high-reliability multilayer PCB for automotive applications. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a high-reliability multilayer PCB board for vehicle use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vehicle-mounted high-reliability PCB multilayer board, comprising a board body, a cover, an inner column, and a cylinder. The board body is provided with positioning holes, and each cylinder is positioned on the positioning holes by a limiting component. The outer wall of the inner column is provided with fins at equal intervals, and the fins are slidably inserted into the inner wall of the cylinder. The fins are made of rubber material, and the two covers are symmetrically threaded on the cylinder.

[0007] Preferably, the limiting component consists of two washers, which are symmetrically threaded onto the outer walls of both ends of the cylinder, and the two washers respectively press against the upper and lower surfaces of the plate.

[0008] Preferably, a spring ring is provided between the cover and the cylinder, with the two ends of the spring ring abutting against the surfaces of the cover and the cylinder, respectively.

[0009] Preferably, a central hole is provided at the center of the inner column, and a circular hole is provided at the center of the cover, the inner diameter of the circular hole being larger than the inner diameter of the central hole.

[0010] Preferably, the upper end of the inner wall of the cylinder is provided with a sliding groove adapted to the fins, and the fins are slidably inserted into the sliding groove.

[0011] Preferably, there are four positioning holes, and the four positioning holes are located at the four corners of the plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In the use of this utility model of a high-reliability automotive PCB multilayer board, the cylinder can be inserted into the positioning hole of the matching automotive PCB multilayer board, and then two washers are threaded on both ends of the cylinder, so that the washers press against the surface of the board to fix the position of the cylinder.

[0014] Then, the inner column carrying the fins is inserted into the cylinder through a groove. Subsequently, two caps are threaded at both ends of the cylinder to seal the ends of the cylinder, thereby positioning the inner column inside the cylinder. At this point, the circuit board can be installed by passing a bolt or other structure through the center hole of the inner column. The vibration generated by the vehicle driving is transmitted to the fins through the bolts. The rubber material of the fins provides a vibration damping and buffering effect on the circuit board. This utility model provides vibration damping measures for circuit boards, with a significant vibration damping effect on vehicle-mounted circuit boards, increasing the reliability of the circuit board. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial cross-sectional view of the present invention.

[0017] Figure 3 For the present utility model Figure 2 Front view structural diagram;

[0018] Figure 4 This is a schematic diagram of the fin mounting structure of this utility model.

[0019] Figure label:

[0020] 1. Plate; 2. Washer; 3. Cover; 4. Inner column; 5. Positioning hole; 6. Fin; 7. Spring ring; 8. Cylinder; 9. Slide groove; 10. Center hole. 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] Example 1

[0023] like Figures 1-4As shown, the present invention proposes a vehicle-mounted high-reliability PCB multilayer board, including a board body 1, a cover 3, an inner post 4 and a cylinder 8. The board body 1 is provided with positioning holes 5, and each cylinder 8 is set on the positioning holes 5 by a limiting component. The outer wall of the inner post 4 is provided with fins 6 at equal intervals. The fins 6 are slidably inserted into the inner wall of the cylinder 8. The fins 6 are made of rubber material. Two covers 3 are symmetrically threaded on the cylinder 8.

[0024] Based on Example 1:

[0025] In the process of using the vehicle-mounted high-reliability PCB multilayer board of this utility model, the cylinder 8 can be inserted into the positioning hole 5 of the vehicle-mounted PCB multilayer board 1 that matches it. Then, two washers 2 are threaded on both ends of the cylinder 8, so that the washers 2 press against the surface of the board 1 to fix the position of the cylinder 8.

[0026] Then, the inner column 4 carrying the fin 6 is inserted into the cylinder 8 through the groove 9. Subsequently, two covers 3 are threaded at both ends of the cylinder 8. The covers 3 seal the two ends of the cylinder 8, thereby positioning the inner column 4 inside the cylinder 8. At this time, the circuit board can be installed by passing through the center hole 10 of the inner column 4 with bolts or other structures. The vibration generated by the vehicle driving is transmitted to the fin 6 through the bolts. The rubber material of the fin 6 plays a role in damping and buffering the plate 1.

[0027] Example 2

[0028] like Figures 1-4 As shown, the present invention proposes a vehicle-mounted high-reliability PCB multilayer board. Compared with Embodiment 1, this embodiment further includes: a limiting component consisting of two washers 2, which are symmetrically threaded on the outer walls of both ends of the cylinder 8. The two washers 2 respectively press against the upper and lower surfaces of the contact plate 1. A spring ring 7 is provided between the cover 3 and the cylinder 8. The two ends of the spring ring 7 abut against the surfaces of the cover 3 and the cylinder 8 respectively. Through the design of the spring ring 7, tension and preload are provided in the connecting assembly to maintain clamping force and prevent loosening.

[0029] A central hole 10 is provided at the center of the inner column 4, and a circular hole is provided at the center of the cover 3. The inner diameter of the circular hole is larger than the inner diameter of the central hole 10. The design of the central hole 10 can limit the path of external installation structures such as bolts.

[0030] The upper end of the inner wall of the cylinder 8 is provided with a sliding groove 9 that is adapted to the fin 6. The fin 6 is slidably inserted into the sliding groove 9. Through the design of the sliding groove 9, the inner column 4 can be limited to not deflection inside the cylinder 8, which facilitates the disassembly of the inner column 4.

[0031] There are four positioning holes 5 in total, and the four positioning holes 5 are located at the four corners of the plate 1.

[0032] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vehicle-mounted high-reliability PCB multilayer board, comprising a board body (1), a cover (3), an inner pillar (4), and a cylinder (8), characterized in that: The plate (1) is provided with positioning holes (5), and each of the cylinders (8) is provided on each of the positioning holes (5) through a limiting component. The outer wall of the inner column (4) is provided with fins (6) at equal intervals. The fins (6) are slidably inserted into the inner wall of the cylinder (8). The fins (6) are made of rubber material. The two covers (3) are symmetrically threaded on the cylinder (8).

2. The high-reliability automotive PCB multilayer board according to claim 1, characterized in that: The limiting component consists of two washers (2), which are symmetrically threaded on the outer walls of both ends of the cylinder (8). The two washers (2) press against the upper and lower surfaces of the plate (1) respectively.

3. The high-reliability automotive PCB multilayer board according to claim 1, characterized in that: A spring ring (7) is provided between the cover (3) and the cylinder (8), with the two ends of the spring ring (7) abutting against the surfaces of the cover (3) and the cylinder (8) respectively.

4. The high-reliability automotive PCB multilayer board according to claim 1, characterized in that: The inner column (4) has a central hole (10) at its center, and the cover (3) has a circular hole at its center, the inner diameter of which is larger than the inner diameter of the central hole (10).

5. The high-reliability automotive PCB multilayer board according to claim 1, characterized in that: The upper end of the inner wall of the cylinder (8) is provided with a sliding groove (9) that is adapted to the fin (6), and the fin (6) is slidably inserted into the sliding groove (9).

6. The high-reliability automotive PCB multilayer board according to claim 1, characterized in that: There are four positioning holes (5), and the four positioning holes (5) are located at the four corners of the plate (1).

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