Flexible circuit board multilayer connection structure based on blind hole technology

Abstract

The utility model relates to the technical field of flexible circuit boards, and discloses a flexible circuit board multilayer connection structure based on a blind hole technology, which comprises a connection seat and a clamping seat, a placement groove is formed in the connection seat, through holes are uniformly formed in the placement groove, a flexible circuit board is placed in the placement groove, and the clamping seat is connected with the flexible circuit board. The left side and the right side of the connecting seat are both provided with connecting grooves, the front side and the rear side of the connecting seat are both provided with clamping blocks, the clamping blocks are clamped in the clamping seats, the bottom of the connecting seat is provided with a buffer pad, and the shape of the buffer pad is matched with the shape of the placing groove. According to the structure, two or more groups of flexible circuit boards can be placed, so that the functionality of the structure is improved, and when the two groups of connecting seats are stacked, the two groups of connecting seats can be clamped through the clamping seats and the clamping blocks, and the positions of the two groups of connecting seats can be fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of flexible circuit boards, in particular to a flexible circuit board multilayer connection structure based on a blind hole process. Background Art

[0002] Flexible circuit boards, also known as soft circuit boards and flexible circuit boards, are highly favored for their excellent properties such as light weight, thin thickness, and free bending and folding. However, the quality inspection of FPCs in China still mainly relies on manual visual inspection, which is costly and inefficient. With the rapid development of the electronics industry, circuit board designs are becoming more and more high-precision and high-density. Traditional manual inspection methods can no longer meet production needs, and automated inspection of FPC defects has become an inevitable trend in industrial development.

[0003] When performing blind hole drilling on a flexible circuit board, it is necessary to use a drill bit to drill holes on the upper part of the flexible circuit board. However, due to the bending and folding characteristics of the flexible circuit board, the flexible circuit board is prone to deformation when the drill bit is drilling holes in the flexible circuit board, resulting in the position of the holes being offset, making the entire set of flexible circuit boards scrapped. Therefore, when performing blind hole drilling on a flexible circuit board, a multi-layer connection mechanism is required to locate the position of the flexible circuit board before drilling holes in the flexible circuit board to avoid the phenomenon of hole position offset and misalignment when drilling holes in the flexible circuit board. To this end, we propose a multi-layer connection structure for a flexible circuit board based on a blind hole process. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a multi-layer connection structure of a flexible circuit board based on a blind hole process, which effectively solves the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer connection structure of a flexible circuit board based on a blind hole process, comprising a connecting seat and a clamping seat, the connecting seat is provided with a placement groove inside, the placement groove is evenly provided with through holes inside, a flexible circuit board is placed in the placement groove, connecting grooves are provided on the left and right sides of the connecting seat, clamping blocks are provided on the front and back sides of the connecting seat, the clamping blocks are clamped in the clamping seat, and a buffer pad is provided at the bottom of the connecting seat, and the shape of the buffer pad matches the shape of the placement groove.

[0006] Preferably, limiting grooves are evenly opened inside the connection seat, buffer springs are arranged inside the limiting grooves, the limiting grooves are distributed in a rectangular shape, and plug-in blocks are evenly arranged on the bottom of the connection seat, and the plug-in blocks are movably connected inside the limiting grooves.

[0007] Preferably, the inner side of the clamping seat is evenly provided with clamping grooves, and the clamping block is located inside the clamping grooves.

[0008] Preferably, adsorption blocks are evenly arranged on the front side of the clamping seat, a rotating block is arranged on the front side of the clamping block, an adsorption magnet is arranged on the inner side of the rotating block, and the adsorption magnet is in contact with the adsorption block.

[0009] Preferably, annular blocks are evenly arranged inside the buffer pad, anti-slip grooves are provided at the bottom of the annular blocks, and the positions of the annular blocks and the through holes are matched.

[0010] Preferably, the clamping seat is arranged in a staggered clamping manner, and the shape of the clamping seat is an "8" shape.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The upper part of the flexible circuit board is better limited by the deformation of the buffer pad. The left and right sides of the connecting seat are provided with connecting grooves, which can be folded to place two or more groups of flexible circuit boards to improve the functionality of the structure. When the two groups of connecting seats are stacked, they can be connected by the connecting seat and the connecting block to fix the position of the two groups of connecting seats;

[0013] 2. By providing a card slot inside the card seat, the card seat can better limit the position of the card block, and the card seat fixes the card block by dislocation, so as to better fix the position of the connecting seat and avoid the displacement of the connecting seat;

[0014] 3. After the clamping seat is clamped, it can be rotated by rotating the rotating block. The rotation of the rotating block allows the adsorption magnet and the adsorption block to be adsorbed to limit the position of the rotating block, so that the rotating block can better fix the position of the clamping seat and avoid the clamping seat from detaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the rotating bolt of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the rotating rod of the utility model;

[0020] Figure 4 This is a schematic diagram of the limiting groove structure of the utility model.

[0021] In the figure: 10, connecting seat; 100, limiting groove; 101, buffer spring; 102, plug-in block; 11, placement groove; 12, through hole; 13, flexible circuit board; 14, connecting groove; 15, snap-on block; 150, rotating block; 151, adsorption magnet; 16, buffer pad; 17, annular block; 20, snap-on seat; 21, slot; 22, adsorption block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Embodiment 1, by Figure 1-4A multilayer connection structure of a flexible circuit board based on a blind hole process is provided, comprising a connection seat 10 and a clamping seat 20, wherein a placement groove 11 is provided inside the connection seat 10, through holes 12 are evenly provided inside the placement groove 11, a flexible circuit board 13 is placed in the placement groove 11, connection grooves 14 are provided on the left and right sides of the connection seat 10, clamping blocks 15 are provided on the front and rear sides of the connection seat 10, the clamping blocks 15 are clamped in the clamping seat 20, a buffer pad 16 is provided at the bottom of the connection seat 10, and the shape of the buffer pad 16 matches the shape of the placement groove 11. When the device is in use, the flexible circuit board 13 is placed in the placement groove 11 inside the connection seat 10, and the upper part of the flexible circuit board 13 is limited by stacking two groups of connection seats 10. When the connection seat 10 is placed, the buffer pad 16 at the bottom of the connection seat 10 can limit the position of the upper part of the flexible circuit board 13 when the connection seat 10 is stacked, and the buffer pad 16 is made of silicone material, so that when the buffer pad 16 is fitted with the upper part of the flexible circuit board 13, the upper part of the flexible circuit board 13 can be better limited by the deformation of the buffer pad 16. The connection seat 10 is provided with connection grooves 14 on the left and right sides, and two or more groups of flexible circuit boards 13 can be placed in a folding manner to improve the functionality of the structure. When two groups of connection seats 10 are stacked, they can be clamped with the clamping block 15 through the clamping seat 20 to fix the position of the two groups of connection seats 10, and the interior of the connection seat 10 is evenly opened. A limiting groove 100 is provided, and a buffer spring 101 is provided inside the limiting groove 100. The limiting grooves 100 are arranged in a rectangular distribution. Plug-in blocks 102 are evenly provided at the bottom of the connecting seat 10. The plug-in blocks 102 are movably connected to the inside of the limiting groove 100. By providing the limiting groove 100, the position of the buffer spring 101 can be limited. When two groups of connecting seats 10 are connected, the plug-in block 102 will be inserted into the inside of the limiting groove 100 to limit the position of the connecting seat 10, so that the two groups of connecting seats 10 are limited when stacked, and by providing the buffer spring 101, the plug-in block 102 can be automatically rebounded, so that when the connecting seat 10 is separated, the upper part can be automatically driven by the rebound force of the buffer spring 101. The connecting seat 10 is raised and the connecting seat 10 is automatically disassembled. The inner side of the clamping seat 20 is evenly provided with a clamping groove 21, and the clamping block 15 is located inside the clamping groove 21. The clamping seat 20 is provided with a clamping groove 21, which can better limit the position of the clamping block 15. The clamping seat 20 fixes the clamping block 15 in a staggered manner to better fix the position of the connecting seat 10 and avoid the connection seat 10 from being offset. The front side of the clamping seat 20 is evenly provided with an adsorption block 22, and the front side of the clamping block 15 is provided with a rotating block 150. The inner side of the rotating block 150 is provided with an adsorption magnet 151, and the adsorption magnet 151 is in contact with the adsorption block 22. After the clamping seat 20 is clamped,The rotating block 150 can be rotated to rotate, and the rotation of the rotating block 150 allows the adsorption magnet 151 to adsorb with the adsorption block 22 to limit the position of the rotating block 150, so that the rotating block 150 can better fix the position of the card seat 20 to prevent the card seat 20 from detaching. The interior of the buffer pad 16 is evenly provided with annular blocks 17, and the bottom of the annular block 17 is provided with an anti-skid groove. The annular block 17 matches the position of the through hole 12. By providing the annular block 17, the buffer pad 16 can be adjusted to the soft When the upper part of the flexible circuit board 13 is fitted, the annular block 17 can press the position of the flexible circuit board 13 to assist the flexible circuit board 13 to better clamp and fix the flexible circuit board 13, so that the flexible circuit board 13 can be better drilled. The clamping seat 20 is staggered and the shape of the clamping seat 20 is set in an "8" shape. The clamping seat 20 set in the "8" shape can assist the clamping seat 20 to better limit the position of the clamping block 15, improve the aesthetics of the clamping seat 20, and better take and place the clamping seat 20.

[0024] Working principle: When the device is in use, the flexible circuit board 13 is placed in the placement groove 11 inside the connecting seat 10, and the upper part of the flexible circuit board 13 is limited by stacking two groups of connecting seats 10. When the connecting seat 10 is placed, the buffer pad 16 at the bottom of the connecting seat 10 can limit the position of the upper part of the flexible circuit board 13 when the connecting seats 10 are stacked, and the buffer pad 16 is made of silicone material, so that when the buffer pad 16 is fitted with the upper part of the flexible circuit board 13, the upper part of the flexible circuit board 13 can be better limited by the deformation of the buffer pad 16. Connecting grooves 14 are provided on the left and right sides of the connecting seat 10, and two or more groups of flexible circuit boards 13 can be placed by folding to improve the functionality of the structure. When the two groups of connecting seats 10 are stacked, they can be clamped with the clamping block 15 through the clamping seat 20 to fix the position of the two groups of connecting seats 10.

[0025] It should be noted that, in this article, relational terms such as second and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A multi-layer connection structure of a flexible circuit board based on a blind hole process, characterized in that: The invention comprises a connecting seat (10) and a clamping seat (20), wherein a placement groove (11) is provided inside the connecting seat (10), through holes (12) are evenly provided inside the placement groove (11), a flexible circuit board (13) is placed inside the placement groove (11), connecting grooves (14) are provided on both the left and right sides of the connecting seat (10), clamping blocks (15) are provided on both the front and rear sides of the connecting seat (10), the clamping blocks (15) are clamped in the clamping seat (20), and a buffer pad (16) is provided at the bottom of the connecting seat (10), the shape of the buffer pad (16) matches the shape of the placement groove (11).

2. According to claim 1, a multi-layer connection structure of a flexible circuit board based on blind hole technology is characterized in that: The connection seat (10) is evenly provided with limiting grooves (100), the limiting grooves (100) are provided with buffer springs (101), the limiting grooves (100) are arranged in a rectangular distribution, and the bottom of the connection seat (10) is evenly provided with plug-in blocks (102), and the plug-in blocks (102) are movably connected to the inside of the limiting grooves (100).

3. The multi-layer connection structure of a flexible circuit board based on blind hole technology according to claim 2, characterized in that: The inner side of the clamping seat (20) is evenly provided with clamping grooves (21), and the clamping block (15) is located inside the clamping grooves (21).

4. The multi-layer connection structure of a flexible circuit board based on blind hole technology according to claim 3 is characterized in that: The front side of the clamping seat (20) is evenly provided with an adsorption block (22), the front side of the clamping block (15) is provided with a rotating block (150), the inner side of the rotating block (150) is provided with an adsorption magnet (151), and the adsorption magnet (151) is in contact with the adsorption block (22).

5. The multi-layer connection structure of a flexible circuit board based on blind hole technology according to claim 4, characterized in that: Annular blocks (17) are evenly arranged inside the buffer pad (16), and anti-slip grooves are provided at the bottom of the annular blocks (17). The positions of the annular blocks (17) and the through holes (12) are matched.

6. The multi-layer connection structure of a flexible circuit board based on blind hole technology according to claim 5, characterized in that: The clamping seat (20) is arranged in a staggered clamping manner, and the shape of the clamping seat (20) is arranged in an "8" shape.

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