Cored piezoelectric fiber fabric

A piezoelectric fiber and fabric technology, applied in the direction of fabrics, piezoelectric devices/electrostrictive devices, textiles, etc., can solve problems such as the inability to meet a wide range of flexible use requirements, improve sensing or driving capabilities, overcome applications The effect of defects

Inactive Publication Date: 2014-12-24
YANGZHOU SIBIDE INSTR & EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The piezoelectric polymer fibers containing metal cores in the above-mentioned Chinese invention patents are used alone as sensors or drivers or energy harvesters, which cannot meet the requirements of a wide range of flexible use.

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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  • Cored piezoelectric fiber fabric
  • Cored piezoelectric fiber fabric
  • Cored piezoelectric fiber fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the core-containing piezoelectric fiber includes a conductive core 101, a polymer material 102 with piezoelectric properties, a surface electrode 103, and a soft insulating material 104. The conductive core rod 101 is at the center, and the cross section of the conductive core 101 is circular. Of course, it can also be in other shapes. The polymer material 102 with piezoelectric properties is evenly wrapped on the conductive core 101. The surface of the polymer material 102 with piezoelectric properties is coated with at least one surface electrode 103. On the surface of the fiber Wrapped with soft insulating material 104 .

Embodiment 2

[0027] Such as figure 2 As shown, a plurality of core-containing piezoelectric fibers 1 are cross-braided or knitted along different linear directions, and the structure and size of each core-containing piezoelectric fiber are exactly the same, and multiple core-containing piezoelectric fibers along the same linear direction are parallel to each other. The distances between adjacent core-containing piezoelectric fibers are equal.

Embodiment 3

[0029] Such as image 3 As shown, a plurality of core-containing piezoelectric fibers 1 and a plurality of other textile fibers 2 are woven or knitted into knots.

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PUM

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Abstract

The invention relates to a fabric made of cored piezoelectric fibers by weaving or knitting. A plurality of cored piezoelectric fibers are parallelly woven or knitted along a same straight line or curved line direction, crosswise woven or knitted along different straight line or curved line directions, or woven or knitted to form knots extending in the straight line or curved line direction to form an area with the cored piezoelectric fibers, and the area with the cored piezoelectric fibers is woven or knitted with an area formed by weaving or knitting other textile fibers to form one or more layers of the fabric. Thus, the area with the cored piezoelectric fibers in the fabric can serve as a sensor or drive. Due to flexibility and foldability, the cored piezoelectric fiber fabric can be made into wearable structures such as gloves, vests, wrist bands, ankle pads, socks and the like which can be put on a living body or a robot body to serve as sensors for sensing health conditions in the living body, movements of the living body or the robot body or external acting forces; the wearable structures can also serve as drives for adding external signals onto the fabric, the living body can sense the external signals by sensing deformation, vibration and the like of the fabric; the wearable structures can further serve as sonic sensors or sonic drives to sense external sound waves or transmit sound waves.

Description

technical field [0001] The invention relates to a core-containing piezoelectric fiber fabric, in particular to a core-containing polymer piezoelectric fiber braided or knitted fabric. Background technique [0002] Piezoelectric materials have direct piezoelectric effect and inverse piezoelectric effect, and piezoelectric devices made of piezoelectric materials can be used as sensors, drivers, transformers or other types of transducers. [0003] Chinese invention patent CN102084048A discloses a linear electronic sensor. This kind of sensor device that can be woven can be incorporated into clothing and can monitor people's movements. Claim 6 proposes that the electronic characteristics of the electric wire are piezoelectric. However, at present, no piezoelectric wire has been found in the world. [0004] Chinese invention patent CN170793A discloses a metal-core piezoelectric ceramic fiber, wherein claim 13 discloses that the piezoelectric material is polyvinylidene fluoride (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D15/02D04B1/14H01L25/04H01L41/08D03D15/25D03D15/47D03D15/533
Inventor 边义祥杜建周刘俊亮刘建沈辉陈远晟徐永安戴隆超王昌龙
Owner YANGZHOU SIBIDE INSTR & EQUIP CO LTD
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