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A flexible circuit board

A technology for flexible circuit boards and circuit board units, which is applied to printed circuit components and other directions to achieve the effects of low cost, guaranteed flatness, and less material usage

Active Publication Date: 2019-08-27
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a flexible circuit board, which is used to solve the problem of how to ensure the overall flatness of the flexible circuit board and reduce the production cost of the flexible circuit board before the flexible circuit board is welded to electronic components by a pressure welding process

Method used

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  • A flexible circuit board
  • A flexible circuit board
  • A flexible circuit board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment one: if image 3 and Figure 4 As shown, the tearing structure 3 is a tearing line extending along the length direction of the gap, and the two ends of the tearing line run through the opposite two edges of the connecting belt 2 . In this way, the connecting tape 2 can be torn through the tear line to separate the first circuit board unit 11 and the second circuit board unit 12 . This structure is simple and easy to implement.

[0033] In order to facilitate the tearing of the connecting band 2 along the tear line, preferably, such as image 3 and Figure 4As shown, the edge of the connecting belt 2 is provided with a tear notch 4, along the depth direction of the tear notch 4, the width of the tear notch 4 gradually decreases to zero, and the end of the tear line is connected in the tear notch 4 Where the width is zero. In this way, during the process of tearing the connecting tape 2 along the tearing line, the tearing stress can be concentrated at the ...

Embodiment 2

[0036] Embodiment two: if Figure 5 , Figure 6 , Figure 7 or Figure 8 As shown, the tearing structure 3 is a tearing strip extending along the length direction of the gap, and the two ends of the tearing strip pass through the opposite two edges of the connecting belt 2 . In this way, the connecting tape 2 can be torn through the tear strip to separate the first circuit board unit 11 and the second circuit board unit 12 . This structure is simple and easy to implement.

[0037] In the above embodiments, the tear strip may be Figure 5 or Figure 6 Shown belongs to a part of the connecting belt 2, it can also be Figure 7 or Figure 8 The entire connection belt 2 shown is not specifically limited here. However, in order to avoid the remaining part of the connecting tape 2 on the first circuit board unit 11 or the second circuit board unit 12 after the connecting tape 2 is torn apart by the tearing strip, preferably, the tearing strip is the entire connecting tape 2, ...

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PUM

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Abstract

The invention discloses a flexible circuit board, which relates to the technical field of electronic devices and is used to ensure the overall flatness of the flexible circuit board and reduce the manufacturing cost of the flexible circuit board before the flexible circuit board is soldered to the electronic component by the pressure welding process. The flexible circuit board of the present invention includes a first circuit board unit extending in a first direction and a second circuit board unit bent from an end of the first circuit board unit and extending in a direction opposite to the first direction, a gap is formed between the first circuit board unit and the second circuit board unit, a connection band is disposed in the gap, and the connection band is connected between the firstcircuit board unit and the second circuit board unit. The connection band is provided with a tearing structure by which the connection band can be torn apart to separate the first circuit board unit and the second circuit board unit. The flexible circuit board of the invention is applied to an electronic device.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to a flexible circuit board. Background technique [0002] Pressure welding is a commonly used welding method for patch welding of flexible circuit boards. When the flexible circuit board is welded to electronic components (such as printed circuit boards) by the pressure welding process, in order to ensure the yield rate of the pressure welding, the flexible circuit The board needs to be kept flat as a whole so that it can be supported and positioned during pressure welding. However, in the prior art, in order to connect two electronic components while avoiding obstacles between the two components, the flexible circuit board 01 is often designed as Serpentines with at least one 180° turn, e.g. designed as figure 1 The shown one has a serpentine structure with a 180° turn. However, at this time, the extension path of the flexible circuit board 01 is long, and it is diff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K1/02
Inventor 潘建伟
Owner BOE TECH GRP CO LTD