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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 extensible conductor cables, electrical components, extensible conductors, etc., can solve the problems that the sensor cannot obtain stretching changes, signal bending deformation interference, etc., to achieve beautiful appearance, cable The effect of roundness and high conductivity

Pending Publication Date: 2020-11-13
NINGBO ELASTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these two sensors have a good response to tensile deformation, they also respond to bending deformation, so when the sensor is applied in an environment with both bending deformation and tensile deformation, the sensor cannot obtain accurate stretching changes, i.e. the signal for tensile strain is disturbed by bending deformation

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

[0040] In this example, if figure 1 , 2 As shown, the liquid metal 1 is filled in the elastic tube 2 and the elastic tube 3 respectively to form two stretchable wires. Along the length direction, the two stretchable wires are intertwined with each other to form a stretchable multiple wire structure with a twisted pair structure. core conductive element. Wherein, the liquid metal is made of GaInSn alloy, and the elastic tube 2 and the elastic tube 3 are both made of thermoplastic elastic material SEBS.

[0041] The preparation method of the stretchable multi-core conductive element is as follows:

[0042]Using extruder equipment and extrusion die, the extrusion die is two hollow pipes with side-by-side double needles socketed outside, using the die to directly extrude the SEBS elastic pipe; then directly inject liquid metal into the pipe ; Afterwards, it is pulled by an external winding device, and the two wires are wound with each other to form a figure 2 The stretchable ...

Embodiment 2

[0046] In this example, if image 3 , 4 As shown, the liquid metal 1 is filled in the elastic tube 2 and the elastic tube 3 respectively to form two stretchable wires. Along the length direction, the two stretchable wires are interlaced and intertwined to form a twisted pair structure. Cover the elastic protective layer 5 to obtain a stretchable multi-core conductive element.

[0047] Among them, the liquid metal is made of GaInSn alloy, the elastic tube 2 and the elastic tube 3 are made of thermoplastic elastic material SEBS, and the elastic protective layer 5 is made of polyester fiber yarn woven into an elastic structure.

[0048] The preparation method of the stretchable multi-core conductive element is as follows:

[0049] Using extruder equipment and extrusion die, the extrusion die is two hollow pipes with side-by-side double needles socketed outside, using the die to directly extrude the SEBS elastic pipe; then directly inject liquid metal into the pipe Afterwards, ...

Embodiment 3

[0053] In this example, if Figure 5 , 6 As shown, the liquid metal 1 is filled in the elastic tube 2 and the elastic tube 3 respectively to form two stretchable wires. Along the length direction, the two stretchable wires are interlaced and intertwined to form a twisted pair structure. The elastic shielding layer 4 is covered, and the outer periphery of the shielding layer 4 is covered with an elastic protective layer 5 to obtain a stretchable multi-core conductive element.

[0054] Among them, the liquid metal is made of GaInSn alloy, the elastic tube 2 and the elastic tube 3 are made of thermoplastic elastic material SEBS, the elastic shielding layer 4 is made of GaInSn alloy, and the elastic protective layer 5 is made of thermoplastic elastic material SEBS.

[0055] The preparation method of the stretchable multi-core conductive element is as follows:

[0056] Adopt extruder equipment, adopt extrusion mold, described extrusion mold is two hollow tube bodies that are sock...

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Abstract

The invention provides a stretchable multi-core conductive element which comprises two or more stretchable wires. The stretchable wires are insulated from each other and twisted together in the lengthdirection, and each stretchable wire comprises liquid metal and a first elastic insulating layer wrapping the periphery of the liquid metal. The stretchable multi-core conductive element is simple instructure 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 attracted widespread attention in recent years, especially multi-core cables for signal transmission and sensors for signal collection. Comfort is very important. [0003] At present, there are mainly two ways to prepare elastic wires. One is to wind multiple strands of copper wires into a helical structure. Large space is not conducive to the integration and miniaturization of devices. Moreover, 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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