Stretchable multi-core conductive element and preparation method thereof, stretchable cable and stretchable capacitive sensor

A capacitive sensor and conductive element technology, applied in the direction of extendable conductor cables, electrical components, extendable conductors, etc., can solve the problems that the sensor cannot obtain stretching changes, signal interference, etc., and achieves easy connection and integration, anti-electromagnetic The effect of strong interference and high conductivity

Pending Publication Date: 2020-11-17
NINGBO ELASTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the current elastic capacitive sensor has a good response to stretching deformation, it also responds to bending deformation, so when the sensor is applied in an environmen

Method used

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  • Stretchable multi-core conductive element and preparation method thereof, stretchable cable and stretchable capacitive sensor
  • Stretchable multi-core conductive element and preparation method thereof, stretchable cable and stretchable capacitive sensor
  • Stretchable multi-core conductive element and preparation method thereof, stretchable cable and stretchable capacitive sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] In this example, if figure 1 , 2 As shown, the stretchable conductive element is composed of an inner layer stretchable wire and an outer layer stretchable wire. The inner stretchable wire consists of a stretchable wire unit. The stretchable wire unit uses liquid metal 1 as a central conductor, and its periphery is covered with an elastic insulating layer 2 . The outer stretchable wire is composed of an elastic conductive shielding material and an elastic insulating material; the elastic conductive shielding material is coaxially wrapped around the inner layer of the stretchable wire to form an elastic conductive shielding layer 3, and the elastic insulating material is coaxially wrapped on the elastic An elastic protective layer 4 is formed around the conductive shielding layer.

[0053] The liquid metal 1 is made of GaInSn alloy; the material of the elastic insulating layer is made of SEBS; the material of the elastic conductive shielding layer is made of liquid me...

Embodiment 2

[0059] In this example, if image 3 , 4 , 5, the stretchable conductive element is composed of an inner layer stretchable wire and an outer layer stretchable wire. The inner stretchable wire consists of a stretchable wire unit. The stretchable wire unit uses liquid metal 1 as a central conductor, and its periphery is covered with an elastic insulating layer 2 . The outer stretchable wire is composed of an elastic conductive shielding material and an elastic insulating material; the elastic conductive shielding material is coaxially and intermittently wrapped around the outer periphery of the inner stretchable wire to form an elastic conductive shielding layer 3, and the elastic insulating material is coaxially wrapped An elastic protection layer 4 is formed covering the periphery of the elastic conductive shielding layer.

[0060] The liquid metal 1 is made of GaInSn alloy; the elastic insulating layer is made of polyurethane PU, a thermoplastic elastic material; the elasti...

Embodiment 3

[0066] In this example, if Image 6 , 7 As shown, the stretchable conductive element is composed of an inner layer stretchable wire and an outer layer stretchable wire. The inner stretchable wire consists of two stretchable wire units. Each stretchable wire uses liquid metal 1 as a central conductor, and its periphery is covered with an elastic insulating layer 2 . Such as Image 6 , 7 As shown, two stretchable wire units are arranged in parallel, and their central conductors are parallel to each other along the central axis of the length direction.

[0067] The outer stretchable wire is composed of an elastic conductive shielding material and an elastic insulating material; the elastic conductive shielding material is coaxially wrapped around the inner layer of the stretchable wire to form an elastic conductive shielding layer 3, and the elastic insulating material is coaxially wrapped on the elastic An elastic protective layer 4 is formed around the conductive shielding...

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Abstract

The invention provides a stretchable multi-core conductive element. The stretchable multi-core conductive element comprises an inner-layer stretchable wire and an outer-layer stretchable wire, the inner-layer stretchable wire is composed of more than one stretchable wire unit which is insulated from each other; each stretchable wire unit takes liquid metal as a central conductor, and the peripheryof each stretchable wire unit is coated with an elastic insulating layer; in addition, the stretchable wire units are arranged together in parallel or connected together in a sleeved mode in the length direction; the outer-layer stretchable wire is composed of an elastic conductive material and an elastic insulating material. The elastic conductive material wraps the periphery of the inner-layerstretchable wire to form a shielding layer, and the elastic insulating material wraps the periphery of the shielding layer to form a protective layer. The stretchable multi-core conductive element issimple in structure and easy to manufacture, has high conductivity and high stretchability, can be used as a stretchable cable and a stretchable capacitance sensor, and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of flexible electronics, in particular to a stretchable multi-core conductive element and a preparation method thereof, a stretchable cable and a stretchable capacitive sensor. Background technique [0002] With the development of the Internet of Things and wearable technology, flexible and stretchable devices are the mainstream trend in the development of electronic devices in the future. Among them, elastic wires and elastic sensors are the key units in the development of flexible elastic devices. They have received widespread attention in recent years, especially for coaxial cables for signal transmission and sensors for signal collection. They are essential for the miniaturization, portability and comfort of electronic products. Sex is very important. [0003] At present, coaxial cables are composed of a pair of conductors, which form a pair in the form of "coaxial". The central conductor layer of the ...

Claims

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Application Information

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IPC IPC(8): H01B7/00H01B1/02H01B7/02H01B7/06H01B7/17H01B7/18H01B13/00G01B7/16
CPCG01B7/16H01B1/02H01B7/0027H01B7/0045H01B7/0216H01B7/06H01B7/17H01B7/18H01B13/00
Inventor 孙丹丹周酉林刘宜伟
Owner NINGBO ELASTECH CO LTD
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