Guide structure of flexible circuit board

By installing a bending guide structure and a cable management system on the flexible circuit board, the problem of damage to the flexible circuit board during bending is solved, achieving the effects of protection and simplified operation.

CN223987288UActive Publication Date: 2026-03-10深圳市特旺电子有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing flexible circuit boards are easily damaged during bending due to excessive bending or misalignment, and multiple bending operations are required, increasing the damage rate. Existing bending guide layers increase thickness and weight, making them difficult to manufacture.

Method used

A flexible circuit board bending guide structure is installed on the base plate, including bending guide blocks and slot system. Bolts and screws limit the bending and prevent excessive bending or misalignment. Combined with the cable management structure, the circuit tangling is reduced.

Benefits of technology

It effectively protects flexible circuit boards from damage due to bending, simplifies the operation process, reduces circuit branching and tangling, and improves reliability and ease of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223987288U_ABST
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Abstract

The utility model discloses a guiding structure of a flexible circuit board, which comprises a bottom plate, flexible circuit board bending guiding structures are installed at the front end and the rear end of the bottom plate through bolts, and flexible circuit board wire arranging structures are fixedly installed at the left end and the right end of the bottom plate. According to the flexible circuit board bending guide structure, when the flexible circuit board is bent according to installation requirements, the bending guide block is adjusted to a proper bending angle, the flexible circuit board can be bent, the arranged bending guide block can avoid the situation that the flexible circuit board is damaged due to excessive bending or dislocation, and the flexible circuit board is not damaged. The bending guide block is inserted into the insertion groove through the insertion block to prevent the deflection from influencing the bending of the flexible circuit board, and during adjustment, only the pull rod needs to be lifted to separate the insertion block from the insertion groove, the threaded groove I and the threaded groove II are aligned, and the insertion block is limited through the screw rod, so that the bending of the flexible circuit board is prevented. A user can move the bending guide block to a proper position, and the operation is simple.
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Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, specifically a guiding structure for a flexible circuit board. Background Technology

[0002] A flexible circuit board is a type of circuit board made of a flexible insulating substrate. It has the characteristics of being able to be bent and rolled up, and can adapt to various complex spatial layouts. When a flexible circuit board needs to be bent during installation, a guiding structure is required to assist the flexible circuit board and avoid damage or poor contact caused by bending.

[0003] The prior art, disclosed in patent document CN217936070U, presents the following technical solution: a flexible circuit board with a bending guide layer, comprising a flexible circuit board body, wherein the back of the flexible circuit board body is glued with a bending guide layer. The present invention has a reasonable structural design, with a bending guide layer on the back of the flexible circuit board body, so that during bending, the bending will proceed along the bending gap between the metal bodies, and the LED bead is located directly above the metal bodies, thus preventing damage to the LED bead during bending, which is beneficial to improving its stability and reliability, and has strong applicability and good practicality.

[0004] The above-mentioned technical solution increases the thickness and weight of the flexible circuit board and the manufacturing difficulty by setting a bending guide layer on the flexible circuit board. Moreover, multiple bends are required to achieve the required angle, which increases the damage rate of the flexible circuit board. Utility Model Content

[0005] The purpose of this invention is to provide a guiding structure for flexible circuit boards to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a guiding structure for a flexible circuit board, including a base plate, with flexible circuit board bending guiding structures bolted to the front and rear ends of the base plate, and flexible circuit board cable management structures fixedly installed at the left and right ends of the base plate.

[0007] The flexible circuit board bending guide structure includes a fixing plate, which is bolted to the outer surfaces of the front and rear ends of a base plate. The fixing plate has several slots arranged in a row. Bending guide blocks are slidably connected to the edges of the front and rear ends of the base plate. Mounting frames are fixedly connected to the outer surfaces of the front and rear ends of each bending guide block. Pull rods are slidably connected to the through holes at the upper ends of the mounting frames. Insert blocks are fixedly connected to the bottom sides of the pull rods. The outer walls of the insert blocks are slidably connected to the inner walls of the mounting frames. Springs are provided between the insert blocks and the top inner side of the mounting frames. Two sets of springs are located on both sides of the pull rods. The insert blocks are inserted into the slots.

[0008] In the above technical solution, the bending guide block can prevent the flexible circuit board from being damaged due to excessive bending or misalignment, thereby protecting the flexible circuit board.

[0009] As a further preferred embodiment of this technical solution, a guide groove is provided on the base plate, and a flexible circuit board body is disposed in the guide groove by means of a fixing member.

[0010] In the above technical solution, the guide groove is used to accommodate the flexible circuit board, and the inner wall of the guide groove is smooth to reduce friction.

[0011] As a further preferred embodiment of this technical solution, a threaded groove is provided above the outer surface on both sides of the mounting frame, and a screw is threaded into each of the threaded grooves.

[0012] As a further preferred embodiment of this technical solution, the outer surfaces on both sides of the insert block are provided with threaded grooves II. When the insert block is away from the slot, threaded grooves II and I are aligned and set, and the insert block is limited by a screw.

[0013] In the above technical solution, the threaded groove one, the threaded groove two, and the screw can temporarily fix the plug that has disengaged from the slot, thereby enabling the plug to move.

[0014] As a further preferred embodiment of this technical solution, the flexible circuit board cable management structure includes a cable management board, on which cable management grooves are arranged, and T-shaped grooves are formed on both sides of the cable management grooves.

[0015] As a further preferred embodiment of this technical solution, each of the T-slots is fitted with a T-shaped insert plate, and each of the T-shaped insert plates on both sides is fixedly connected with a protective cover, the upper end of which is provided with heat dissipation holes.

[0016] The above technical solutions help guide the flexible circuit board circuits to be arranged in an orderly manner, reducing branching and tangling.

[0017] As a further preferred embodiment of this technical solution, the flexible circuit board body is guided to bend by a bending guide block.

[0018] In the above technical solution, the internal width of the bending guide block is the same as the width of the flexible circuit board body, so that it can fit against the bending guide block when bending.

[0019] This utility model provides a guiding structure for flexible circuit boards, which has the following beneficial effects:

[0020] (1) This utility model uses a flexible circuit board bending guide structure. When the flexible circuit board is bent according to the installation requirements, the bending guide block is first adjusted to a suitable bending angle, and then the flexible circuit board can be bent. The bending guide block can prevent the flexible circuit board from being damaged due to excessive bending or misalignment, thus protecting the flexible circuit board. The bending guide block is inserted into the slot through the plug to prevent displacement from affecting the bending of the flexible circuit board. When adjusting, simply pull the pull rod to separate the plug from the slot and align the first threaded groove and the second threaded groove. The plug is limited by the screw, and the user can move the bending guide block to a suitable position. The operation is simple.

[0021] (2) By installing a flexible circuit board wiring structure, this utility model helps to guide the flexible circuit board wiring to be arranged in an orderly manner, reducing branching and tangling. Attached Figure Description

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

[0023] Figure 2 This is a schematic diagram of the flexible circuit board bending guide structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the limiting structure of the bending guide block of this utility model;

[0025] Figure 4 This is a schematic diagram of the flexible circuit board wiring structure of this utility model;

[0026] Figure 5 This is an enlarged view of Figure A of this utility model;

[0027] In the diagram: 1. Base plate; 11. Guide groove; 12. Flexible circuit board body; 2. Flexible circuit board bending guide structure; 21. Fixing plate; 22. Slot; 23. Bending guide block; 24. Mounting frame; 25. Pull rod; 26. Spring; 27. Insert block; 241. Threaded groove one; 242. Screw; 271. Threaded groove two; 3. Flexible circuit board cable management structure; 31. Cable management board; 32. Cable management groove; 33. T-slot; 34. Protective cover; 35. Heat dissipation hole; 36. T-shaped insert plate. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] This utility model provides a technical solution: such as Figure 1 and Figure 2As shown in this embodiment, a guiding structure for a flexible circuit board includes a base plate 1. A guiding groove 11 is provided on the base plate 1 to accommodate the flexible circuit board. The inner wall of the guiding groove 11 is smooth to reduce friction. A flexible circuit board body 12 is provided in the guiding groove 11 by a fixing member, which is a screw. The fixing member fixes the flexible circuit board to the base plate 1. The flexible circuit board body 12 is guided to bend by a bending guiding block 23. A flexible circuit board bending guiding structure 2 is bolted to the front and rear ends of the base plate 1. A flexible circuit board cable management structure 3 is fixedly installed at the left and right ends of the base plate 1.

[0030] like Figure 2 and Figure 3 As shown, the flexible circuit board bending guide structure 2 includes a fixing plate 21, which is bolted to the outer surfaces of the front and rear ends of the base plate 1. Slots 22 are arranged on the fixing plate 21, with several slots 22 arranged in a row. Bending guide blocks 23 are slidably connected to the edges of the front and rear ends of the base plate 1. The internal width of the bending guide blocks 23 is the same as the width of the flexible circuit board body 12, allowing them to fit snugly against the bending guide blocks 23 during bending. Mounting frames 24 are fixedly connected to the outer surfaces of the front and rear ends of the bending guide blocks 23. Threaded grooves 241 are formed on the upper part of the outer surfaces of both sides of the mounting frames 24, and threaded rods 242 are threaded into each of the threaded grooves 241. Pull rods 25 are slidably connected to the through holes at the upper end of the mounting frames 24, and insert blocks 27 are fixedly connected to the bottom sides of each pull rod 25. The outer wall of the insert block 27 is slidably connected to the inner wall of the mounting frame 24. Threaded grooves 271 are formed on the outer surfaces of both sides of the insert block 27. When the insert block 27 moves away from the slots 22, the threaded grooves 271 and 242 are aligned with the threaded grooves 241. The 41 is aligned and the plug 27 is limited by the screw 242. A spring 26 is provided between the plug 27 and the top side of the mounting frame 24. Two sets of springs 26 are located on both sides of the pull rod 25. The plug 27 is inserted into the slot 22. By installing the flexible circuit board bending guide structure 2, when the flexible circuit board needs to be bent according to installation requirements, the bending guide block 23 is first adjusted to a suitable bending angle to bend the flexible circuit board. The bending guide block can prevent damage caused by excessive bending or misalignment of the flexible circuit board, thus protecting it. The bending guide block 23 is inserted into the slot 22 through the plug 27 to prevent displacement from affecting the bending of the flexible circuit board. During adjustment, simply pull the pull rod 25 to separate the plug 27 from the slot 22 and align the first threaded groove 241 and the second threaded groove 271. The screw 242 limits the plug 27, allowing the user to move the bending guide block 23 to a suitable position. The operation is simple.

[0031] like Figure 4 and Figure 5As shown, the flexible circuit board cable management structure 3 includes a cable management board 31, on which cable management grooves 32 are arranged. T-shaped grooves 33 are provided on the cable management board 31 and on both sides of the cable management grooves 32. T-shaped inserts 36 are snapped into the T-shaped grooves 33. Protective covers 34 are fixedly connected to the T-shaped inserts 36 on both sides. Heat dissipation holes 35 are arranged on the upper end of the protective covers 34. By installing the flexible circuit board cable management structure 3, it is helpful to guide the flexible circuit board lines to be arranged in an orderly manner, reducing branching and tangling.

[0032] This utility model provides a guiding structure for a flexible circuit board. The specific working principle is as follows: When the flexible circuit board needs to be bent, in order to avoid excessive bending or misalignment that could damage it, the position of the bending guide block 23 is first adjusted. The user pulls the pull rod 25 on one side, which compresses the spring 26. At the same time, the insert 27 disengages from the slot 22. When the second threaded groove 271 is aligned with the first threaded groove 241, the user can rotate the screw 242 to extend it into the second threaded groove 271, thus limiting the position of the insert 27. Then, the same operation is performed on the other side of the bending guide block 23 to move the bending guide block 23 until it moves to the appropriate position for bending the flexible circuit board. Then, the screw 242 is reversed to move it away from the second threaded groove 271. With the spring 26 returning to its original position, the insert 27 continues to be inserted into the slot 22 below.

[0033] The wires on the flexible circuit board are inserted into the cable management groove 32 to make them orderly, reduce branching and tangling, and are clipped into the T-shaped groove 33 by the T-shaped insert plate 36 to cover the organized wires.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guide structure of a flexible wiring board comprising a base plate (1), characterized by: The flexible circuit board bending guide structure (2) is bolted on the front and rear ends of the bottom plate (1), and the flexible circuit board wire arrangement structure (3) is fixedly installed on the left and right ends of the bottom plate (1); The flexible circuit board bending guide structure (2) comprises a fixed plate (21) arranged on the outer surface of the front and rear ends of the bottom plate (1) by bolts, a plurality of insertion grooves (22) arranged on the fixed plate (21), a bending guide block (23) slidably connected to the edge of the front and rear ends of the bottom plate (1), an installation frame (24) fixedly connected to the outer surface of the front and rear ends of the bending guide block (23), a pull rod (25) slidably connected to the through hole of the upper end of the installation frame (24), an insertion block (27) fixedly connected to the bottom side of the pull rod (25), the outer wall of the insertion block (27) and the inner wall of the installation frame (24) being slidably connected, a spring (26) arranged between the insertion block (27) and the inner top side of the installation frame (24), and two groups of springs (26) arranged on both sides of the pull rod (25).

2. The guide structure for a flexible wiring board according to claim 1, wherein: The bottom plate (1) is provided with a guide groove (11), and the flexible circuit board body (12) is arranged in the guide groove (11) by a fixing member.

3. The guide structure for a flexible wiring board according to claim 1, wherein: Threaded grooves (241) are formed on the upper surfaces of the outer surfaces of the installation frames (24), and threaded rods (242) are threadedly connected to the threaded grooves (241).

4. The guide structure for a flexible wiring board according to claim 1, wherein: Threaded grooves (271) are formed on the outer surfaces of the insertion blocks (27), and the threaded grooves (271) are aligned with the threaded grooves (241) when the insertion blocks (27) are away from the insertion grooves (22), and the insertion blocks (27) are limited by the threaded rods (242).

5. The guide structure for a flexible wiring board according to claim 1, wherein: The flexible circuit board wire arrangement structure (3) comprises a wire arrangement plate (31), a plurality of wire arrangement grooves (32) arranged on the wire arrangement plate (31), and T-shaped grooves (33) formed on the wire arrangement plate (31) and located on both sides of the wire arrangement grooves (32).

6. The guide structure for a flexible wiring board according to claim 5, wherein: T-shaped plug-in plates (36) are clamped in the T-shaped grooves (33), and protective covers (34) are fixedly connected to the T-shaped plug-in plates (36) on both sides.

7. The guide structure for a flexible wiring board according to claim 2, wherein: The flexible circuit board body (12) is guided and bent by the bending guide block (23).

Citation Information

Patent Citations

  • Flexible circuit board with bending guide layer

    CN217936070U