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Design of bending region structure of flexible printed circuit board

A flexible printed circuit, printed circuit technology, applied in the direction of printed circuit components, etc., can solve the problem of flexible printed circuit board fracture, bending accuracy is difficult to control, and the flexible printed circuit board 10 cannot achieve a complete bending angle. precision etc.

Inactive Publication Date: 2009-06-03
WINTEK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this conventional bending method, due to the printing tolerance of the white paint line 11 and the tolerance caused by the operator's manual bending, it is often impossible for the flexible printed circuit board 10 to achieve a completely accurate bending angle.
[0004] In addition, in order to improve the lack of control of the above-mentioned bending accuracy, some manufacturers have partially hollowed out the bending area of ​​the flexible printed circuit board.
But this kind of method must destroy the flexible printed circuit board, so that the strength of the flexible printed circuit board is reduced, and even the flexible printed circuit board is broken

Method used

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  • Design of bending region structure of flexible printed circuit board
  • Design of bending region structure of flexible printed circuit board
  • Design of bending region structure of flexible printed circuit board

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Embodiment Construction

[0032] The technical means and effects used by the present invention to achieve the purpose will be described below with reference to the attached drawings, and the embodiments listed in the following drawings are only for auxiliary explanation, to facilitate understanding, but the technical means of the present invention are not limited The diagrams listed.

[0033] see image 3 As shown, a specific embodiment of the structural design of the flexible printed circuit board bending area provided by the present invention, the flexible printed circuit board 2 has a substrate 20, at least one printed circuit and a bending area 23, as shown in the figure There are two printed circuits 21 and 22, and the bending area 23 intersects with the printed circuits 21 and 22. Usually, the bending area 23 and the substrate 20 form a bending angle θ of 45 degrees; through etching and other processing methods, A groove 24 is formed at the bending area 23 of the printed circuit 21 .

[0034] S...

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Abstract

The invention relates to a design of a bending region structure of a flexible printed circuit board, the flexible printed circuit board comprises a substrate, at least one printed circuit and a bending region, the bending region is staggered with at least one printed circuit, at least one groove is formed at the bending region of the printed circuit, the thickness of the groove is less than or equal to the thickness of the printed circuit, and the groove can not cut off the printed circuit; the design of the groove can effectively control the stress position at the bending region of the flexible printed circuit board, thereby achieving the purpose of precise bending angle of the flexible printed circuit board.

Description

technical field [0001] The invention relates to a structural design of a flexible printed circuit board, in particular to a structural design in which grooves are provided in the bending area of ​​the flexible printed circuit board to form bending stress lines. Background technique [0002] The main characteristics and advantages of flexible printed circuit boards (FPC) are easy to bend and flexibility. Therefore, flexible printed circuit boards are often used in design structures that need to be flexed during assembly. It is very important that the location is accurate. [0003] see figure 1 and figure 2 As shown, in the prior art, a white paint line 11 is generally added at the bending position of the flexible printed circuit board 10, so that the operator can identify the bending position. However, in this conventional bending method, due to the printing tolerance of the white paint line 11 and the tolerance caused by the operator's manual bending, it is often impossi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02
Inventor 罗启文高家宁
Owner WINTEK CORP
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