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A detachable connection method between fabric circuit board and electronic components

An electronic component, disassembly and connection technology, applied in the direction of printed circuit components, printed circuits connected with non-printed electrical components, etc., can solve the problems of increasing the strength of the substrate, weakening the tensile properties, and difficult to control the amount of adhesive, etc. To achieve the effect of stable connection

Active Publication Date: 2021-07-02
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the connection prepared by using conductive adhesive has certain flexibility, it is not stretchable; this connection method can increase the strength of the base around the component connection, so as to protect the connection from being damaged during the stretching deformation process, but the adhesive The amount of the mixture is not easy to control, resulting in a large bending stiffness at the junction of the fabric circuit, which weakens the overall tensile properties

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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  • A detachable connection method between fabric circuit board and electronic components
  • A detachable connection method between fabric circuit board and electronic components

Examples

Experimental program
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Effect test

Embodiment 1

[0020] The connection process between the fabric circuit board and the hard resistor:

[0021] One upper three lower right twill weave is used as the basic structure of the fabric circuit board, 100*4D silver-coated nylon yarn and 140D / 70D / 70D spandex covered yarn are used as warp yarns, and cotton yarns are used as weft yarns. According to the designed circuit pattern, A conductive fabric with a specific structure is woven on an advanced rapier loom as a fabric circuit board.

[0022] Tightly wrap the silver conductive yarn in the fabric circuit board on the pin of a hard resistor for 10 turns, with a winding height of 5cm, and then use a custom-made mold to evenly coat the pin around the wrapped silver wire by injection. Add Dow Corning glass silica gel, and then cure it at room temperature to form a cylindrical silica gel column with a diameter of 3mm.

[0023] The detachable process of fabric circuit board and hard resistor:

[0024] The connections are detachable for ea...

Embodiment 2

[0026] Copper fiber is used as raw material, and sophisticated flat knitting technology is used to complete the weaving of flexible fabric circuit boards. Finally, the pins of the LED lamp are tightly connected with the conductive copper fibers in the fabric circuit board by means of spiral connection, and glass silica gel is injected into it to form a detachable and reliable connection.

Embodiment 3

[0028] Using silver / nylon fiber as raw material, it is integrated into elastic fabric by weaving method to weave stretchable conductive fabric, which can be used as fabric circuit board. Arrange a group of LED lights in a matrix, and tightly wind multiple conductive yarns on the fabric circuit board to each LED light pin, and then evenly inject PDMS around them to form a detachable matrix row arrangement At the connection, the LED matrix can be illuminated.

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 detachable connection method between a fabric circuit board and electronic components. The pins of the fabric circuit board and electronic components are connected through a conductive channel, wherein the conductive channel has a spiral structure, and one end is electrically connected to the fabric circuit board. Sexual connection, and the other end is helically wound on the pins of electronic components to form a connection part; when the conductive channel is stretched, the conductive channel of the helical structure tightly wraps the pins of electronic components. The invention ensures that the entire fabric circuit can still maintain good mechanical properties and conductive stability under stretching deformation.

Description

technical field [0001] The invention relates to flexible connection technology in the field of wearable technology, in particular to a detachable connection method between a fabric circuit board and electronic components. Background technique [0002] Achieving reliable interconnection between conductive channels and electronic components in fabric circuits is a crucial step in the exploration of wearable textiles from the research stage to widespread applications, because the stability of the connection will affect the signal transmission of the entire circuit. accuracy. [0003] Traditional interconnection techniques include resistance soldering, interposers as electronic component carriers, button connections, or conductive adhesives such as silver-filled epoxy adhesives, silicone adhesives, and SWCNT conductive rubber. . Use resistance welding to achieve effective interconnection at connection locations, and use microcutters to cut conductive wires or laser ablation te...

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 Patents(China)
IPC IPC(8): H05K1/02H05K1/18
Inventor 李乔冉紫鸳杨倩丁辛
Owner DONGHUA UNIV
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