TWM678618U - Circuit board positioning structure - Google Patents

Abstract

This invention relates to a circuit board positioning structure, comprising: a circuit board assembly including a backing plate, at least one circuit board, and a protective plate; the at least one circuit board is stacked and positioned on the backing plate, and at least one hollow limiting groove is formed between the circuit board and the backing plate; the protective plate is stacked and positioned on the circuit board, and a hollow through hole is formed on the protective plate corresponding to the limiting groove; a positioning member including a head and a rod, the rod passing through the limiting groove and the through hole, and the head abutting against the top surface of the protective plate, which can reduce the operation time of manually applying and removing tape and avoid the problem of leaving adhesive residue on the edge of the circuit board.

Description

Circuit board positioning structure

This invention relates to a positioning structure for a circuit board, specifically the alignment of a limiting groove and a through hole in a protective plate formed in the circuit board and a backing plate. Multiple limiting grooves and through holes are formed on at least two opposing edges of the circuit board assembly. Metal positioning elements are inserted into the limiting grooves and through holes for fixation. This allows the protective plate to adhere to the circuit board, achieving advantages such as preventing scratches, reducing copper burrs, improving hole position accuracy, and reducing drill bit temperature during circuit board drilling. It replaces the conventional method of temporarily fixing circuit boards by applying tape and multiple rod-shaped positioning pins to two or four edges, reducing the time spent manually applying and removing tape and avoiding the problem of leaving adhesive residue on the edges of the circuit board.

Note that the rapid development of technology and information today has led to the continuous emergence of various electronic products and equipment on the market. These electronic products and equipment are equipped with printed circuit boards (PCBs) for assembling electronic components. Electronic components with different functions or roles are soldered onto the PCBs to form electronic circuits, enabling the electronic products and equipment to operate normally. With the widespread use of PCBs, manufacturers of related process equipment are also more actively investing in research and development.

Circuit boards can generally be classified into rigid boards and flexible boards based on their flexibility; into single-sided boards, double-sided boards, and multi-layer boards based on the number of layers; and into boards classified by material, including paper-based copper foil substrates, composite substrates, glass fiber cloth copper foil substrates, soft or rigid copper foil substrates, ceramic substrates, metal substrates, thermoplastic substrates, etc. In the circuit board manufacturing process, the copper foil substrate (CCL) is an indispensable and crucial base material, made from insulating paper, glass fiber cloth, or other fibrous materials... A semi-cured adhesive sheet (PrePreg, also known as a film) obtained after resin impregnation is laminated with copper foil and formed into a laminate under high temperature and high pressure. However, before processing, the adhesive sheet is continuously wound to form a strip. After slitting and cutting processes, the cut adhesive sheets can be stacked together, heated to a certain range, and then pressed and cured to form a substrate of the required thickness. The substrate is then coated with copper on one or both sides and then laminated and cured to form a copper foil substrate.

However, currently, the most common method for fixing copper foil substrates at a workstation is to manually apply tape and multiple rod-shaped locating pins to two or four edges of the copper foil substrate for temporary fixation to perform processes such as drilling or welding. After the process is completed, the tape is removed manually and the copper foil substrate is transferred to the next workstation. However, this method consumes a large amount of tape, is less environmentally friendly, and is more expensive. This issue needs to be addressed by those in this industry.

Therefore, in view of the above-mentioned problems and deficiencies, the creator collected relevant data and, after evaluation and consideration from multiple perspectives, finally designed this circuit board positioning structure.

This invention is mainly a positioning structure for a circuit board, comprising: a circuit board assembly including a backing plate, at least one circuit board and a protective plate; the at least one circuit board is stacked and positioned on the backing plate, and at least one hollow limiting groove is formed in the circuit board and the backing plate; the protective plate is stacked and positioned on the circuit board, and a hollow through hole is formed in the protective plate corresponding to the limiting groove; a positioning member including a head and a rod, the rod passing through the limiting groove and the through hole and the head abutting against the top surface of the protective plate. As described above, the limiting grooves and through holes formed in the circuit board and the pad are aligned, and there can be multiple limiting grooves and through holes formed at at least two opposite edges of the circuit board assembly. Metal positioning members are inserted into the limiting grooves and through holes to form a fixation, which allows the protective plate to be attached to the circuit board. When drilling the circuit board, it can achieve various advantages such as preventing scratches, reducing copper burrs, improving hole position accuracy, and reducing drill bit temperature. It replaces the conventional method of applying tape and multiple rod-shaped positioning pins to temporarily fix the circuit board on two or four edges, which can reduce the operation time of manually applying and removing tape and avoid the problem of leaving adhesive residue on the edge of the circuit board.

A secondary objective of this creation is that the pad is made of a shock-resistant material such as wood, plastic, acrylic, or silicone.

Another objective of this invention is that the diameter of the through hole in the protective plate is larger than the diameter of the limiting groove, and the diameter of the head of the positioning member is larger than the diameter of the through hole.

Another objective of this creation is that the protective plate is made of aluminum or an aluminum alloy.

Another objective of this creation is that the positioning component has a T-shaped structure in appearance.

Please refer to Figures 1 to 3, which are side views of the positioning component and side sectional views of the front and rear of the positioning component inserted into the circuit board assembly, respectively. As can be clearly seen from the figures, the positioning structure of the circuit board mainly includes the circuit board assembly 1 and the positioning component 2. The detailed structure and connection relationship are as follows:

The circuit board assembly 1 includes a pad 11, at least one circuit board 12, and a protection board 13.

The at least one circuit board 12 is stacked and positioned on the pad 11, and the circuit board 12 and the pad 11 have at least one hollow limiting groove 10 formed therein.

The protective plate 13 is stacked and positioned on the circuit board 12, and the protective plate 13 has a hollow through hole 130 corresponding to the limiting groove 10.

The positioning member 2 includes a head 21 and a rod 22, with the rod 22 passing through the limiting groove 10 and the through hole 130, and the head 21 abutting against the top surface of the protective plate 13.

The aforementioned pad 11 is made of a shock-resistant material such as wood, plastic, acrylic, or silicone.

The diameter of the through hole 130 of the aforementioned protective plate 13 is larger than the diameter of the hole of the limiting groove 10, and the diameter of the head portion 21 of the positioning member 2 is larger than the diameter of the through hole 130.

The aforementioned limiting groove 10 and the through hole 130 may be multiple and formed on at least two opposite edges of the circuit board assembly 1.

The aforementioned protective plate 13 is made of aluminum or an aluminum alloy.

The aforementioned positioning component 2 has a T-shaped structure in appearance.

The main feature of this invention is that the limiting groove 10 formed in the circuit board 12 and the pad 11, and the through hole 130 of the protective plate 13 are aligned. Multiple limiting grooves 10 and through holes 130 are formed on at least two opposing edges of the circuit board assembly 1. Metal positioning members 2 are inserted into the limiting grooves 10 and through holes 130 for fixation, allowing the protective plate 13 to adhere to the circuit board 12 and be placed on the drilling machine. On the work platform (not shown in the figure), drilling of the circuit board 12 can achieve various advantages such as preventing scratches, reducing copper burrs, improving hole position accuracy, and reducing drill bit temperature. It replaces the conventional circuit board which must be temporarily fixed by applying tape and rod-shaped multiple positioning pins (in the form of [︱] structure) on two or four edges. It can reduce the operation time of manually applying and removing tape and avoid the problem of leaving adhesive residue on the edge of the circuit board 12.

The above description is merely a preferred embodiment of the present invention and does not limit the scope of the patent. Therefore, any simple modifications and equivalent structural changes made using the contents of the present invention's description and drawings should also be included within the scope of the patent and are hereby stated.

In conclusion, the positioning structure of the aforementioned circuit board is highly practical and effectively achieves its intended function and purpose. Therefore, this invention meets the requirements for a utility model patent application and is hereby filed. We hope the patent committee will grant this application as soon as possible to protect the creator's hard work. If the patent committee has any questions, please feel free to contact us. The creator will do their utmost to cooperate. Thank you for your assistance.

1: Circuit board assembly; 10: Limiting groove; 11: Pad; 12: Circuit board; 13: Protective plate; 130: Through hole; 2: Positioning component; 21: Head; 22: Rod body

[Figure 1] is a side view of the positioning component of this invention. [Figure 2] is a side cross-sectional view of the positioning component in front of the circuit board assembly. [Figure 3] is a side cross-sectional view of the positioning component in the rear of the circuit board assembly.

1: Circuit board components

10: Limiting groove

11: Mat

12: Circuit Board

13: Protective Plate

130:Through hole

2: Positioning components

21: Head

22: Bar Body

Claims (6)

A positioning structure for a circuit board includes: a circuit board assembly, including a backing plate, at least one circuit board, and a protective plate; the at least one circuit board is stacked and positioned on the backing plate, and at least one hollow limiting groove is formed in the circuit board and the backing plate; the protective plate is stacked and positioned on the circuit board, and a hollow through hole is formed in the protective plate corresponding to the limiting groove; and a positioning member, including a head and a rod, the rod passing through the limiting groove and the through hole, and the head abutting against the top surface of the protective plate. The circuit board positioning structure as described in claim 1, wherein the pad is made of a shock-resistant material such as wood, plastic, acrylic or silicone. The positioning structure of the circuit board as described in claim 1, wherein the diameter of the through hole of the protective plate is larger than the diameter of the limiting groove, and the diameter of the head of the positioning member is larger than the diameter of the through hole. The positioning structure of the circuit board as described in claim 1, wherein the limiting groove and the through hole may be multiple and formed on at least two opposite edges of the circuit board assembly. The positioning structure of the circuit board as described in claim 1, wherein the protective plate is made of aluminum or an aluminum alloy. The positioning structure of the circuit board as described in claim 1, wherein the positioning element has an overall "T" shaped structure.