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Woven-structure stretchable fabric circuit board and wearable equipment

A technology for circuit boards and fabrics, which is applied in the field of stretchable fabric circuit boards with woven structures and wearable devices, and can solve problems such as poor air permeability, large resistance, and large relative changes in contact resistance

Inactive Publication Date: 2017-12-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of this flexible printed circuit board is unstable under tensile strain, and the relative change of contact resistance is relatively large.
(2) Circuit boards made of flexible metal films or polymer films, which have relatively large initial resistance, low conductivity, and poor washability
(3) Stretchable circuit boards based on knitted fabrics woven from coated yarns, which have poor air permeability and affect the comfort of wearing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Woven-structure stretchable fabric circuit board and wearable equipment
  • Woven-structure stretchable fabric circuit board and wearable equipment
  • Woven-structure stretchable fabric circuit board and wearable equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Twill weave structure design:

[0030] One upper three lower right twill weave is used as the basic weave of the base part of the fabric circuit board, silver thread and 140D / 70D / 70D black wrapping yarn are used for the warp yarn, and cotton yarn is used for the weft yarn (see figure 2 ). First, by confirming the sensing position of the upper body of the human body, the position of the conductive yarn in the fabric and the setting of the spacing distance are designed, and the warp and weft yarn density and reed number are calculated according to the shrinkage rate of general tights, and the conductive yarn is woven into the form on the rapier loom. Stretched fabric circuit board, wherein one conductive yarn is woven into the sub-circuit part each time, and two conductive yarns are woven into the main circuit part each time to show the distinction.

[0031] Electronic component connections for fabric circuit boards:

[0032] After the fabric circuit board is completed...

Embodiment 2

[0036] Using platinum wire as raw material, using flat knitting technology, the conductive fiber exists in the form of knitted coils, thereby preparing a stretchable fabric strain sensor. Using copper wire as raw material, using advanced weaving technology, a flexible connection circuit is prepared. The elastic fabric circuit is used to realize the close connection between various sensors in wearable devices, so as to realize the transmission of signals and the collection of information.

Embodiment 3

[0038] Using silver / nylon fibers as raw materials, conductive fibers were integrated into elastic woven fabrics to prepare elastic conductive tights. Integrating printed coating strain sensors and flexible capacitors with three-dimensional structure onto the fabric realizes a complete connection between circuits and components, thus sending signals to the data acquisition place.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a woven-structure stretchable fabric circuit board. The circuit board comprises an elastic woven fabric matrix woven with conductive fibers by virtue of a textile processing technique, and a plurality of conducting channels are formed in a woven fabric and are used for connecting multiple electronic components so as to generate signal transmission among the electronic components. The invention further relates to wearable equipment utilizing the woven-structure stretchable fabric circuit board. The woven-structure stretchable fabric circuit board can cling to the skin and has stable performance.

Description

technical field [0001] The invention relates to a flexible circuit board in the field of wearable technology, in particular to a stretchable fabric circuit board with a woven structure and a wearable device. Background technique [0002] With the continuous progress and development of electronics, biotechnology and textile material processing technology, wearable devices with sensing functions have been developed and are favored by people. The sensors and other electronic components need to be connected into a whole through circuits. Flexible circuit design is one of the important conditions for wearable devices to be portable and wearable, and has gradually become a key research topic in recent years. [0003] The traditional printed circuit board circuit design uses a hard substrate material, which is not stretchable and not easy to fold. It cannot meet the stretching and strain requirements of the human joints, and the skin fit is poor. It is used in wearable devices. It...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D1/00D03D15/02A41D1/00A41D31/00
CPCA41D1/005A41D31/00D03D1/0088D03D15/593
Inventor 李乔冉紫鸳丁辛
Owner DONGHUA UNIV
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