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Self-healing wiring and retractable devices

一种配线、电气配线的技术，应用在电路可弯曲/可拉伸的零部件、电气元件、印刷电路零部件等方向，能够解决不存在、伸缩性界限、疲劳断裂等问题，达到高导电性、高伸缩性、避免漏电流和绝缘破坏的效果

Active Publication Date: 2019-05-21
WASEDA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since only metal is used, there is not only a limit to the stretchability, but also there is a fear of fatigue fracture due to repeated stretching and stretching.
Although it is preferable to use metal for stretch wiring in consideration of high conductivity, there is no record that metal can be used to solve high stretch resistance (that is, no fracture caused by stretch and fatigue fracture caused by repetition of stretch)

Method used

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  • Self-healing wiring and retractable devices
  • Self-healing wiring and retractable devices
  • Self-healing wiring and retractable devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] Hereinafter, several preferred embodiments of the present invention will be described with reference to the drawings. In addition, in each embodiment, the same code|symbol is attached|subjected to the same structure, and the description of the same part is omitted as much as possible in order to avoid duplication.

[0076] figure 1 The basic structure of the self-healing wiring 1 according to the first embodiment of the present invention is shown. The self-healing wiring 1 basically has a structure in which a metal wiring 3 is arranged on a sheet-shaped flexible substrate 2 , and a liquid 5 containing metal nanoparticles 4 is arranged to cover the metal wiring 3 . Here, a container 12 having a concave liquid sealing portion 11 is bonded to the upper surface of the flexible substrate 2 , and the liquid 5 accommodated in the liquid sealing portion 11 is sealed between the flexible substrate 2 and the container 12 . At both ends of the metal wiring 3, terminal portions 8...

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PUM

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Abstract

The present invention provides a self-repairing type wiring (1), which implements a stretchable flexible substrate (2) with a metal wiring (3) as a repair part for a crack (7) generated in the metal wiring (3) and dispersed A liquid (5) with metal nanoparticles (4) covers the metal wiring (3). Even if a crack (7) occurs in the metal wiring (3) due to the expansion and contraction of the flexible substrate (2), as long as the force that acts selectively on the part of the crack (7) is used, the metal nanometer in the liquid (5) will Particles (4) bridge the cracks (7), and the metal wiring (3) is selectively repaired only in the cracks (7). In addition, it is possible to provide such a self-healing wiring (1) and A stretchable device composed of non-stretchable electrical components. Thereby, it is possible to provide a self-repairing type wiring and a stretchable device having both high conductivity and high stretchability of the substrate.

Description

technical field [0001] The present invention relates to a self-healing type wiring which realizes electrical wiring having high expansion and contraction resistance, high conductivity, and a self-repairing function, and a stretchable device provided with the self-healing type wiring. Background technique [0002] In recent years, as described in Non-Patent Document 1, for example, research on flexible devices having flexibility and stretchability has been actively carried out. In addition, wirings used in flexible devices include wirings whose material is a conductive elastomer as in Non-Patent Document 2, metal wirings whose shape is corrugated as in Non-Patent Document 3, and the like. However, the conductive elastomer has a problem of low conductivity, and the corrugated metal wiring has a problem of cracks due to expansion and contraction. [0003] Concretely, the most common stretchable wiring studied previously is a conductive rubber obtained by mixing a conductive ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/22H05K1/02
CPCH05K3/225H05K2203/0723H05K2203/105H05K2203/173H05K2201/0215H05K2201/0257H05K2201/2009H05K2203/0776H05K2203/125H05K1/189H05K1/0283H05K1/092H05K1/118H05K1/18H05K1/0277H05K1/11H05K1/03H05K1/181
Inventor 岩瀬英治古志知也
Owner WASEDA UNIV