Circuit board with anti-fracture mounting hole

Abstract

The utility model discloses a circuit board with an anti-fracture mounting hole, comprising a circuit board body, a mounting hole body is opened on the outer side of the circuit board body, a pressure-resistant plate is arranged above the mounting hole body, a bearing plate is arranged below the mounting hole body, a protective frame is arranged on the outer side of the bearing plate, a limiting column is arranged on the inner side of the protective frame, a limiting groove is arranged on the outer side of the mounting hole body, a load-bearing opening is arranged on the inner side of the limiting column, pressure columns are arranged on both sides of the bottom of the pressure-resistant plate, and a pressure ring is arranged on the inner side of the bottom of the pressure column. The utility model: when the circuit board is installed, the screw drives the upper pressure-resistant plate to be pressed down, the pressure column slides in the load-bearing opening, the pressure ring is always on the mounting hole, and the circuit board is fixed by the pressure ring through the elastic force of the spring above, and after the spring is pressed to a certain extent, the bottom of the pressure column is pressed to the bottom of the inner side of the load-bearing opening, thereby transmitting the pressure to the bearing plate, that is, reducing the pressure borne by the mounting hole of the circuit board, thereby protecting the mounting hole and preventing it from breaking.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit board with anti-fracture mounting holes. Background Art

[0002] Circuit board, also known as printed circuit board or PCB, is an indispensable part of electronic equipment. It is mainly composed of pads, vias, mounting holes, wires, components, connectors, filling, electrical boundaries, etc. Circuit board makes the circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. The types of circuit boards mainly include single-sided board, double-sided board and multi-layer board.

[0003] When installing an existing circuit board, it is necessary to open a mounting hole on the outer side of the circuit board and insert a screw into the mounting hole to fix the circuit board at the mounting hole. However, the screw needs to be tightened when installing it so that the circuit board can be installed stably. However, when tightening, the screw fixation will cause greater extrusion on the circuit board, which may cause the mounting hole of the circuit board to break. Utility Model Content

[0004] The utility model aims to provide a circuit board with a mounting hole that is resistant to fracture, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A circuit board with an anti-fracture mounting hole comprises a circuit board body, a mounting hole body is opened on the outside of the circuit board body, a pressure-resistant plate is arranged above the mounting hole body, a bearing plate is arranged below the mounting hole body, a protective frame is arranged on the outside of the bearing plate, the protective frame wraps the outside of the mounting hole body, a limiting column is arranged on the inside of the protective frame, a limiting slot is arranged on the outside of the mounting hole body, the limiting column is slidably connected to the limiting slot, a load-bearing opening is arranged on the inside of the limiting column, pressure columns are arranged on both sides of the bottom of the pressure-resistant plate, the pressure columns slide in the load-bearing opening, and the bottom of the pressure column is pressed to the bottom of the inner side of the load-bearing opening, a pressure ring is arranged on the inner side of the bottom of the pressure column, and the pressure ring is pressed to the outside of the top of the mounting hole body.

[0007] In a preferred embodiment of the present invention, the pressure-resistant plate is provided with a first opening, the bearing plate is provided with a second opening, and the first opening and the second opening are connected to the mounting hole body.

[0008] In a preferred embodiment of the present invention, a spring is disposed at the bottom of the first opening, and the bottom of the spring is connected to a pressure ring.

[0009] In a preferred embodiment of the present invention, an annular groove is provided on the outer side of the top of the second opening, and a protective rubber ring is provided on the outer side of the bottom of the mounting hole body, and the protective rubber ring is butted against the annular groove.

[0010] In a preferred embodiment of the present utility model, a slide bar is provided on one side of the bottom of the anti-pressure plate, and a sliding opening is provided on the inner side of the mounting hole body, and the slide bar slides on the sliding opening.

[0011] In a preferred embodiment of the present utility model, a limiting block is arranged at the bottom of the slide bar, a limiting opening is arranged at the bottom of the sliding opening, and the limiting block is slidably connected to the limiting opening.

[0012] 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.

[0013] Beneficial effect: When the circuit board is installed, the screw drives the upper pressure-resistant plate to be pressed down, the pressure column slides in the load-bearing opening, the pressure ring is always on the mounting hole, and the circuit board is fixed by the pressure ring through the elastic force of the spring above, and after the spring is compressed to a certain extent, the bottom of the pressure column is pressed to the bottom of the inner side of the load-bearing opening, thereby transmitting the pressure to the bearing plate, and connecting the annular groove through the protective rubber ring, the outer side of the bottom of the mounting hole is protected to a certain extent by the protective rubber ring, that is, the pressure on the mounting hole of the circuit board is reduced, thereby protecting the mounting hole and preventing it from breaking.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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:

[0016] Figure 1 A schematic diagram of the main structure of a circuit board with anti-fracture mounting holes;

[0017] Figure 2 A schematic diagram of an outer side mounting structure of a mounting hole in a circuit board with a mounting hole anti-fracture feature;

[0018] Figure 3 A schematic diagram of the bottom structure of a mounting hole in a circuit board with anti-fracture mounting hole;

[0019] Figure 4The present invention is a schematic diagram of the bottom structure of a pressure-resistant plate in a circuit board with anti-fracture mounting holes.

[0020] In the figure: 1. Circuit board body; 11. Mounting hole body; 12. Protective rubber ring; 13. Limiting groove; 14. Sliding mouth; 15. Limiting mouth; 2. Anti-pressure plate; 21. Pressure ring; 22. Spring; 23. Pressure column; 24. Sliding bar; 25. Limiting block; 3. Bearing plate; 31. Protective frame; 32. Annular groove; 33. Limiting column; 34. Load-bearing mouth; 35. Second opening; 4. First opening. DETAILED DESCRIPTION

[0021] 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] Please refer to Figure 1-4 The utility model discloses a circuit board with an anti-fracture mounting hole, comprising a circuit board body 1, the circuit board body 1 is the main body of the circuit board with an anti-fracture mounting hole, a mounting hole body 11 is provided on the outer side of the circuit board body 1, the mounting hole body 11 is the mounting hole of the circuit board with an anti-fracture mounting hole, a pressure-resistant plate 2 is arranged above the mounting hole body 11, the pressure-resistant plate 2 is installed above the mounting hole, that is, the pressure above the mounting hole is resisted, a bearing plate 3 is arranged below the mounting hole body 11, the bearing plate 3 is installed at the bottom of the mounting hole, that is, it is used to resist the bottom of the mounting hole For protection, a protective frame 31 is arranged on the outer side of the bearing plate 3, and the protective frame 31 wraps the outer side of the mounting hole body 11, that is, through the installation of the anti-pressure plate 2, the bearing plate 3 and the protective frame 31, the upper and lower sides and the outer side of the mounting hole are protected, so as to prevent the mounting hole from breaking. A first through opening 4 is arranged on the anti-pressure plate 2, and a second through opening 35 is arranged on the bearing plate 3. The first through opening 4 and the second through opening 35 are connected to the mounting hole body 11, that is, when installing the circuit board, the screws pass through the first through opening 4, the mounting hole body 11 and the second through opening 35 in sequence.

[0023] A limiting column 33 is provided on the inner side of the protection frame 31, and a limiting slot 13 is provided on the outer side of the mounting hole body 11. The limiting column 33 is slidably connected with the limiting slot 13, that is, the limiting slot 13 is connected through the limiting column 33, so that the protection frame 31 is installed on the outer side of the mounting hole, and the bearing plate 3 is installed on the bottom of the mounting hole. A load-bearing opening 34 is provided on the inner side of the limiting column 33, and pressure columns 23 are provided on both sides of the bottom of the pressure-resistant plate 2. The pressure column 23 slides in the load-bearing opening 34, that is, when the upper pressure-resistant plate 2 is pressed down, it is pressed to the inner bottom of the load-bearing opening 34 through the bottom of the pressure column 23, so that the protection frame 31 is installed on the outer side of the mounting hole, and the bearing plate 3 is installed on the bottom of the mounting hole. The pressure is transmitted to the bearing plate 3, that is, the pressure on the mounting hole of the circuit board is reduced, thereby protecting the mounting hole to prevent it from breaking. A sliding bar 24 is provided on one side of the bottom of the pressure-resistant plate 2, and a sliding mouth 14 is provided on the inner side of the mounting hole body 11. A limiting block 25 is provided at the bottom of the sliding bar 24, and a limiting mouth 15 is provided at the bottom of the sliding mouth 14. The limiting block 25 is slidably connected with the limiting mouth 15, and the sliding bar 24 slides on the sliding mouth 14, and the limiting mouth 15 limits the limiting block 25, so that the pressure-resistant plate 2 is installed above the mounting hole and slides.

[0024] A pressing ring 21 is arranged on the inner side of the bottom of the pressing column 23, and the pressing ring 21 is pressed to the outer side of the top of the mounting hole body 11. A spring 22 is arranged on the bottom of the first through hole 4, and the bottom of the spring 22 is connected to the pressing ring 21. When the pressure-resistant plate 2 is pressed down, the pressing ring 21 is always on the mounting hole, and the circuit board is fixed by the elastic force of the spring 22 above, and after the spring 22 is pressed to a certain extent, the bottom of the pressing column 23 is pressed to the bottom of the inner side of the load-bearing opening 34, and an annular groove 32 is arranged on the outer side of the top of the second through hole 35. A protective rubber ring 12 is arranged on the outer side of the bottom of the mounting hole body 11, and the protective rubber ring 12 is connected to the annular groove 32. The outer side of the bottom of the mounting hole is protected to a certain extent by the protective rubber ring 12, that is, it is prevented from breaking.

[0025] The working principle of the utility model is: the slide bar 24 slides on the slide opening 14, and the limiting opening 15 limits the limiting block 25, so that the pressure-resistant plate 2 is installed on the mounting hole and slides, that is, the upper part of the mounting hole is subjected to pressure resistance, and the limiting notch 13 is connected by the limiting column 33, so that the protective frame 31 is installed on the outside of the mounting hole, and the bearing plate 3 is installed on the bottom of the mounting hole, that is, the bottom of the mounting hole is protected by the bearing plate 3, and the outer side of the mounting hole is protected by the protective frame 31. When installing the circuit board, the screws pass through the first through-opening 4, the mounting hole body 11, the second through-opening 4, the mounting hole body 11, and the second through-opening 4 in sequence. When the through opening 35 drives the upper pressure-resistant plate 2 to be pressed downward, the pressure column 23 slides in the load-bearing opening 34, and the pressure ring 21 is always on the mounting hole, and through the elastic force of the spring 22 above, the circuit board is fixed through the pressure ring 21, and after the spring 22 is compressed to a certain extent, the bottom of the pressure column 23 is pressed to the bottom of the inner side of the load-bearing opening 34, thereby transmitting the pressure to the bearing plate 3, and connecting the annular groove 32 through the protective rubber ring 12. The outer side of the bottom of the mounting hole is protected to a certain extent by the protective rubber ring 12, that is, the pressure on the mounting hole of the circuit board is reduced, thereby protecting the mounting hole and preventing it from breaking.

[0026] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A circuit board with anti-fracture mounting holes, comprising a circuit board body (1), characterized in that: The circuit board body (1) is provided with a mounting hole body (11) on the outside, a pressure-resistant plate (2) is provided above the mounting hole body (11), a bearing plate (3) is provided below the mounting hole body (11), a protective frame (31) is provided on the outside of the bearing plate (3), the protective frame (31) wraps the outside of the mounting hole body (11), a limiting column (33) is provided on the inside of the protective frame (31), and a limiting slot (131) is provided on the outside of the mounting hole body (11). ), the limiting column (33) is slidably connected to the limiting groove (13), a load-bearing opening (34) is arranged on the inner side of the limiting column (33), pressure columns (23) are arranged on both sides of the bottom of the pressure-resistant plate (2), the pressure column (23) slides in the load-bearing opening (34), and the bottom of the pressure column (23) is pressed to the bottom of the inner side of the load-bearing opening (34), a pressure ring (21) is arranged on the inner side of the bottom of the pressure column (23), and the pressure ring (21) is pressed to the outer side of the top of the mounting hole body (11).

2. A circuit board with anti-fracture mounting holes according to claim 1, characterized in that: The pressure-resistant plate (2) is provided with a first opening (4), the bearing plate (3) is provided with a second opening (35), and the first opening (4) and the second opening (35) are butt-jointed with the mounting hole body (11).

3. A circuit board with anti-fracture mounting holes according to claim 2, characterized in that: A spring (22) is provided at the bottom of the first opening (4), and the bottom of the spring (22) is connected to a pressure ring (21).

4. A circuit board with anti-fracture mounting holes according to claim 2, characterized in that: An annular groove (32) is arranged on the outer side of the top of the second opening (35), and a protective rubber ring (12) is arranged on the outer side of the bottom of the mounting hole body (11), and the protective rubber ring (12) is butted against the annular groove (32).

5. A circuit board with anti-fracture mounting holes according to claim 1, characterized in that: A sliding bar (24) is arranged on one side of the bottom of the pressure-resistant plate (2), a sliding opening (14) is arranged on the inner side of the mounting hole body (11), and the sliding bar (24) slides on the sliding opening (14).

6. A circuit board with anti-fracture mounting holes according to claim 5, characterized in that: A limiting block (25) is arranged at the bottom of the slide bar (24), a limiting opening (15) is arranged at the bottom of the sliding opening (14), and the limiting block (25) is slidably connected to the limiting opening (15).

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