Sensing elastic foam and multi-channel coaxial extrusion additive manufacturing equipment and method thereof

An elastic foam, additive manufacturing technology, applied in manufacturing, additive processing, liquid material additive processing, etc., can solve problems such as difficulty in meeting user personalized customization requirements, high production costs, waste of manpower, time and cost , to achieve the effect of saving manpower, fast forming speed and high degree of continuity

Pending Publication Date: 2021-03-19
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the related research and manufacture of existing flexible sensors has the following limitations: (1) The existing flexible sensors are manufactured by traditional casting methods, which need to manufacture molds in advance, and the production cost is very high, and if different process adjustments are made according to different needs, It is also necessary to replace the mold according to the needs, resulting in a lot of waste of manpower, time and cost; (2) Due to the above factors, the existing flexible sensors are difficult to meet more and more personalized customization requirements of users

Method used

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  • Sensing elastic foam and multi-channel coaxial extrusion additive manufacturing equipment and method thereof
  • Sensing elastic foam and multi-channel coaxial extrusion additive manufacturing equipment and method thereof
  • Sensing elastic foam and multi-channel coaxial extrusion additive manufacturing equipment and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Such as figure 1 and 2 As shown, a sensing elastic foam, the sensing elastic foam 10 is an elastic dielectric unit, which is formed by stacking no less than three layers of porous grids, and each layer of porous grids is formed by interweaving core-shell line structural units , the core-shell line structure unit includes an elastic line unit 101, a sensing unit 102 and a wire unit 103, wherein the sensing unit 102 and the wire unit 103 are cores, the elastic line unit 101 is a shell, and the sensing unit 102 is in The resistance, capacitance or inductance change significantly after being subjected to force deformation, heat or other external stimuli, and the resistance and the change of the wire unit 103 are smaller than the sensing unit 102, so the elastic foam can realize the sensing function.

[0048] The line width of the elastic line unit 101 is 1100 microns, and the wall thickness is 1100 microns; the line width of the sensing unit 102 is 1100 microns, the wall t...

Embodiment 2

[0071] A sensing elastic foam, the sensing elastic foam 10 is an elastic dielectric unit formed by stacking no less than three layers of porous grids, each layer of porous grids is formed by interweaving core-shell line structural units, the The core-shell line structure unit includes an elastic line unit 101, a sensing unit 102 and a wire unit 103, wherein the sensing unit 102 and the wire unit 103 are cores, the elastic line unit 101 is a shell, and the sensing unit 102 deforms under force. , heat or other external stimuli, the resistance, capacitance or inductance change obviously, and the resistance and the change of the wire unit 103 are smaller than the sensing unit 102, so the elastic foam can realize the sensing function.

[0072] The line width of the elastic line unit 101 is 1200 microns, and the wall thickness is 1200 microns; the line width of the sensing unit 102 is 1200 microns, the wall thickness is 300 microns, and the inner diameter of the inner core is 600 mic...

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Abstract

The invention relates to the field of flexible electronic technologies and additive manufacturing, particularly to sensing elastic foam and multi-channel coaxial extrusion additive manufacturing equipment and method thereof. The sensing elastic foam is an elastic dielectric unit and is formed by stacking at least three layers of porous grids, wherein each layer of porous grids is formed by interweaving core-shell line structure units, each core-shell line structure unit comprises an elastic line unit, a sensing unit and a conducting wire unit, the sensing unit and the conducting wire unit arecores, and the elastic line unit serves as a shell. According to the invention, the sensing elastic foam is prepared by adopting multi-channel coaxial extrusion additive manufacturing equipment, and the purpose of switching different line printing modes is achieved by adjusting printing parameters on line, so that continuous manufacturing of different functional units of the sensing elastic foam is completed.

Description

technical field [0001] The invention relates to the fields of flexible electronic technology and additive manufacturing, in particular to a sensing elastic foam and its multi-channel coaxial extrusion additive manufacturing equipment and method. Background technique [0002] With the continuous advancement of science and technology, more and more electronic products are turning to flexibility and customization, such as wearable devices, flexible circuit antennas, microwave cables, electronic skins, etc. These electronic products not only require the normal operation of electronic components, but also It is also required that the electronic components can be elastically deformed according to the user's needs, which requires the flexible sensor, which has both sensing function and elastic deformation. Such a requirement will undoubtedly pose a huge challenge to traditional manufacturing. The relevant research and manufacture of the existing flexible sensor is to embed the cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/12B29C64/106B33Y10/00B33Y80/00
CPCG01D5/12B29C64/106B33Y10/00B33Y80/00
Inventor 刘禹徐嘉文张星浩张阳姜晶
Owner JIANGNAN UNIV
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