FPC (Flexible Printed Circuit) bending jig

By designing an FPC bending fixture including carrier plate and bending groove, the problem of inaccurate bending angle of the FPC circuit board is solved, and high-precision and high-efficiency bending are achieved, and production defect rate is reduced.

CN222839895UActive Publication Date: 2025-05-06ZHUHAI TIANCHEN TECH CO LTD
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Patent Information

Application Number
CN202421780217.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2025-05-06
Estimated Expiration
2034-07-26

AI Technical Summary

Technical Problem

The prior art is difficult to ensure that the bending angle of the FPC circuit board is 90°, resulting in low bending efficiency and high production failure rate.

Method used

An FPC bending fixture is designed, including a carrier plate and a bending groove, which is provided with a fixing portion, a first bending portion and a second bending portion. Through the precise design of these components and the distribution of positioning holes, high-precision bending of the FPC circuit board is achieved.

Benefits of technology

Through this FPC bending fixture, each bending angle can be ensured to be 90°, bending accuracy and efficiency can be improved, rework risks can be reduced, and production quality can be improved.

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Abstract

The utility model discloses an FPC (Flexible Printed Circuit) bending jig which comprises a carrier plate and a bending groove, a plurality of positioning holes are formed in the carrier plate; the bending groove is formed in the carrier plate, a plurality of positioning holes are distributed around the bending groove, the bending groove comprises a fixing part, a first bending part and a second bending part, the first bending part is vertically connected with the fixing part, the second bending part is vertically connected with the first bending part, and a plurality of avoiding holes are formed in the fixing part. The joint of the first bending part and the fixing part is a first bending position, first bending is carried out at the bending position, and the tail part of the FPC circuit board is bent into the first bending part; the joint of the second bending part and the first bending part is a second bending position, second bending is carried out at the bending position, and the tail part of the FPC circuit board is bent into the second bending part; therefore, the bending precision is improved, it is guaranteed that the bending angle of each time is 90 degrees, the bending efficiency and quality are improved, and the reworking risk is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit boards, in particular to an FPC bending jig. Background Art

[0002] In some electrical products, the FPC circuit board (Flexible Printed Circuit) needs to be bent multiple times, and the bending angle is required to be 90° each time. Currently, the tail of the FPC circuit board is manually bent according to the marking line on the FPC circuit board. The bending accuracy is not accurate enough to ensure that the bending angle is 90°, resulting in frequent rework, low bending efficiency and high production defect rate. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an FPC bending fixture, which can ensure that the bending angle is 90° and improve the FPC bending efficiency and quality.

[0004] An embodiment of the utility model provides an FPC bending jig, including a carrier plate and a bending groove; the carrier plate is provided with a plurality of positioning holes; the bending groove is arranged on the carrier plate, and a plurality of positioning holes are distributed around the bending groove, the bending groove includes a fixed portion, a first bending portion and a second bending portion, the first bending portion is vertically connected to the fixed portion, the second bending portion is vertically connected to the first bending portion, and a plurality of avoidance holes are arranged in the fixed portion.

[0005] According to some embodiments of the utility model, the avoidance hole is a through hole, and the avoidance hole is used to avoid components on the FPC circuit board, and the size of the avoidance hole is adapted to the size of the components.

[0006] According to some embodiments of the present invention, the depth of the bending groove is 0.5±0.1 mm.

[0007] According to some embodiments of the present invention, the first bending portion is vertically connected to the fixing portion to form an L-shaped structure.

[0008] According to some embodiments of the present invention, a connection between the first bending portion and the fixing portion is an arc structure.

[0009] According to some embodiments of the present invention, the second bent portion is vertically connected to the first bent portion to form a T-shaped structure.

[0010] According to some embodiments of the present invention, the second bending portion is provided with a taking-out opening.

[0011] According to some embodiments of the present invention, the carrier plate is a rectangular structure.

[0012] According to some embodiments of the present invention, limiting grooves are provided on both sides of the carrier plate.

[0013] The embodiments of the present invention have at least the following beneficial effects:

[0014] The above-mentioned FPC bending jig includes a carrier plate and a bending groove, wherein the bending groove is arranged on the carrier plate, and a plurality of positioning holes are distributed around the bending groove, wherein the bending groove includes a fixed portion, a first bending portion, and a second bending portion, wherein the first bending portion is vertically connected to the fixed portion, and the second bending portion is vertically connected to the first bending portion, and a plurality of avoidance holes are arranged in the fixed portion. The connection between the first bending portion and the fixed portion is a first bending position, and the first bending position is used for the first bending position, and the tail of the FPC circuit board is folded into the first bending portion; the connection between the second bending portion and the first bending portion is a second bending position, and the second bending position is used for the second bending position, and the tail of the FPC circuit board is folded into the second bending portion; thereby improving the bending accuracy, ensuring that each bending angle is 90°, improving the bending efficiency and quality, and reducing the risk of rework.

[0015] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 This is a structural schematic diagram of an FPC bending jig according to an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of the bending groove of the FPC bending fixture according to an embodiment of the utility model;

[0019] Figure 3 This is a structural schematic diagram of the FPC bending jig of the embodiment of the utility model when fixing the FPC circuit board;

[0020] Figure 4 This is a structural schematic diagram of the FPC bending jig of the embodiment of the utility model when bending the FPC circuit board for the first time;

[0021] Figure 5 It is a structural schematic diagram of the FPC bending jig of an embodiment of the utility model when bending the FPC circuit board for the second time.

[0022] Reference numerals:

[0023] The carrier 100 , the positioning hole 110 , the limiting groove 120 , the bending groove 200 , the fixing portion 210 , the avoiding hole 211 , the first bending portion 220 , the second bending portion 230 , the taking-out port 231 , and the FPC circuit board 300 . DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present utility model, unless otherwise clearly defined, words such as “set,” “install,” “connect,” and “connected” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present utility model based on the specific content of the technical solution.

[0028] Please refer to Figure 1 and Figure 2This embodiment discloses an FPC bending jig, which includes a carrier 100 and a bending groove 200. The carrier 100 is provided with a plurality of positioning holes 110; the bending groove 200 is provided on the carrier 100, and a plurality of positioning holes 110 are distributed around the bending groove 200. The bending groove 200 includes a fixing portion 210, a first bending portion 220 and a second bending portion 230, the first bending portion 220 is vertically connected to the fixing portion 210, the second bending portion 230 is vertically connected to the first bending portion 220, and a plurality of avoidance holes 211 are provided in the fixing portion 210. The connection between the first bending portion 220 and the fixing portion 210 is the first bending position, and the connection between the second bending portion 230 and the first bending portion 220 is the second bending position. Bending is performed at the first bending position and the second bending position to achieve multiple bending of the FPC circuit board 300 times, ensuring that the bending angle is 90° each time, thereby improving the bending accuracy and bending efficiency.

[0029] Please refer to Figure 2 In some embodiments, the avoidance hole 211 is a through hole, and the avoidance hole 211 is used to avoid components on the FPC circuit board 300. The size of the avoidance hole 211 is adapted to the size of the components. The FPC circuit board 300 to be bent is placed on the FPC bending jig, and the components on the FPC circuit board 300 are inserted into the avoidance hole 211.

[0030] Please refer to Figure 1 and Figure 2 In some embodiments, the depth of the bending groove 200 is 0.5±0.1 mm. The FPC circuit board 300 to be bent is placed in the bending groove 200 , and the FPC circuit board 300 is fixed on the FPC bending fixture through the positioning holes 100 .

[0031] Please refer to Figure 2 In some embodiments, the first bending portion 220 is vertically connected to the fixing portion 210 to form an L-shaped structure; the connection between the first bending portion 220 and the fixing portion 210 is an arc structure. The FPC circuit board 300 is fixed on the FPC bending fixture through the positioning hole 100, and the connection between the first bending portion 220 and the fixing portion 210 is the first bending position. The tail of the FPC circuit board 300 is bent for the first time at this bending position to improve the bending accuracy and ensure that the bending angle is 90°.

[0032] Please refer to Figure 2 In some embodiments, the second bending portion 230 is vertically connected to the first bending portion 220 to form a T-shaped structure. The connection between the second bending portion 230 and the first bending portion 220 is a second bending position, at which the tail of the FPC circuit board 300 is bent for the second time to improve the bending accuracy and bending efficiency.

[0033] Please refer to Figure 2In some embodiments, the second bending portion 230 is provided with a take-out port 231 . After the FPC circuit board 300 is bent, it is taken out from the take-out port 231 .

[0034] Please refer to Figure 1 In some embodiments, the carrier 100 is a rectangular structure; limiting grooves 120 are provided on both sides of the carrier 100. The carrier 100 is placed on the operating table and fixed by the limiting grooves 120 to prevent it from moving or deviating.

[0035] When using, please refer to Figure 3 , place the FPC circuit board 300 to be bent on the FPC bending jig, insert the components on the FPC circuit board 300 into the avoidance holes 211, and fix the FPC circuit board 300 on the FPC bending jig through the positioning holes 100. Please refer to Figure 4 According to the first bending position of the FPC bending fixture, the tail of the first bent FPC circuit board 300 is folded into the first bending portion 220 of the bending groove 200. Figure 5 According to the second bending position of the FPC bending jig, the tail of the second bent FPC circuit board 300 is folded into the second bending portion 230 of the bending groove 200. This ensures that the bending angle is 90° each time, improves the bending speed, bending efficiency, bending accuracy and quality, and reduces the risk of rework.

[0036] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An FPC bending jig, characterized in that: include: A carrier plate (100), wherein the carrier plate (100) is provided with a plurality of positioning holes (110); A bending groove (200), wherein the bending groove (200) is arranged on the carrier plate (100), a plurality of the positioning holes (110) are distributed around the bending groove (200), the bending groove (200) comprises a fixing portion (210), a first bending portion (220) and a second bending portion (230), the first bending portion (220) is vertically connected to the fixing portion (210), the second bending portion (230) is vertically connected to the first bending portion (220), and a plurality of avoidance holes (211) are arranged in the fixing portion (210).

2. The FPC bending jig according to claim 1, characterized in that: The avoidance hole (211) is a through hole, and the avoidance hole (211) is used to avoid components on the FPC circuit board (300), and the size of the avoidance hole (211) is compatible with the size of the components.

3. The FPC bending jig according to claim 1 or 2, characterized in that: The depth of the bending groove (200) is 0.5±0.1 mm.

4. The FPC bending jig according to claim 1, characterized in that: The first bending portion (220) is vertically connected to the fixing portion (210) to form an L-shaped structure.

5. The FPC bending jig according to claim 1 or 4, characterized in that: The connection between the first bending portion (220) and the fixing portion (210) is an arc structure.

6. The FPC bending jig according to claim 1, characterized in that: The second bent portion (230) is vertically connected to the first bent portion (220) to form a T-shaped structure.

7. The FPC bending jig according to claim 1, characterized in that: The second bent portion (230) is provided with a piece taking opening (231).

8. The FPC bending jig according to claim 1, characterized in that: The carrier plate (100) is a rectangular structure.

9. The FPC bending jig according to claim 8, characterized in that: Limiting grooves (120) are arranged on both sides of the carrier plate (100).