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Flexible Printed Wiring Board

一种柔性印刷电路、电路板的技术，应用在印刷电路、印刷电路、印刷电路制造等方向，能够解决增加柔性印刷电路板成本、增加部件和安装步骤等问题

Active Publication Date: 2018-02-16
SUMITOMO ELECTRIC PRINTED CIRCUITS INC +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Mounting fuses on a FPC increases the cost of the FPC by increasing the number of parts and installation steps

Method used

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  • Flexible Printed Wiring Board
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Examples

Experimental program
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Effect test

Embodiment Construction

[0010] 【Technical problem to be solved by the present invention】

[0011] In the configuration of the flexible printed circuit board described in the above publication, when the fuse part formed by reducing the cross section is blown, the fuse part of the base film of the flexible printed circuit board is heated and carbonized, and the resulting carbide may A short circuit is caused between both ends of the blown fuse section so that the current cannot be interrupted, or a short circuit may be caused between a wiring of the fuse section and another adjacent wiring to generate an abnormal current.

[0012] Furthermore, in the configuration of the flexible printed circuit board described in the above publication, the heat of the fuse part is dissipated to the base film, making it difficult to fuse the fuse part, and thus interruption of overcurrent may be delayed.

[0013] The present invention is completed based on the situation described above, and the purpose of the present i...

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PUM

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Abstract

This flexible printed wiring board comprises: a base film having insulating properties; and a conductive pattern laminated on one surface side of this base film. The conductive pattern constitutes part of a circuit. The flexible printed wiring board has at least one fuse having a smaller cross-sectional area than the other part of the circuit and comprises at least one opening on at least either the left or right side of the fuse section, in the planar view, said opening piercing the front and rear surfaces.

Description

technical field [0001] The invention relates to a flexible printed circuit board. Background technique [0002] Flexible printed circuit boards are widely used to configure circuits of electronic devices and the like. In order to prevent damage to electronic components due to overcurrent in electronic equipment and the like, it may be desirable to provide a fuse that blows to cut off the current when the overcurrent flows. For this purpose, the fuses may be mounted on a flexible printed circuit board. [0003] Mounting fuses on a flexible printed circuit board increases the number of parts and mounting steps, thereby increasing the cost of the flexible printed circuit board. Therefore, it has been proposed to partially reduce the cross-section of a circuit in which a conductive pattern is formed in a flexible printed circuit board, and provide a function of a fuse blowing in case of overcurrent (see Japanese Patent Laid-Open No. 2007-317990). [0004] reference list [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H05K1/16H01H69/02H01H85/046
CPCH05K2201/09063H05K2201/09727H05K1/0293H01H85/046H01H69/022H05K2201/10181H05K2203/107H05K3/0026H05K3/005H01H85/10H05K1/028H01H85/0241H01H2085/0275H05K3/064H05K2203/068H05K3/027H05K1/0393H05K1/0256H05K1/0257
Inventor 津曲隆行内田淑文高濑慎一齐藤裕久
Owner SUMITOMO ELECTRIC PRINTED CIRCUITS INC
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