# US 9,752,259 B2 · Stretchable electrical interconnect and method of making same

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- Number: US 9,752,259 B2
- Document ID: US9752259B2
- Status: Granted
- Kind: B2
- Application number: 13/442,388
- Filed: 2012-04-09
- Published: 2013-10-10
- Granted: 2017-09-05
- Earliest claimed: 2012-04-09
- Assignees: The Hong Kong Research Intitute of Textiles and Apparel Limited
- Applicants: Xiaoming Tao; Qiao Li; Bo Zhu
- Inventors: Xiaoming Tao; Qiao Li; Bo Zhu
- Web page: https://patentgrep.com/patent/US9752259B2

## CPC

- D02G 3/441: {Yarns or threads with antistatic, conductive or radiation-shielding properties (electroconductive, anti-static or radiation-shielding filaments D01F1/09, D01F1/106; anti-static fabrics D03D15/533; conducting, insulating or anti-static layers for floor coverings D06N7/0042)}
- D04B 1/18: elastic threads
- D10B 2403/02431: with electronic components, e.g. sensors or switches
- Y10T 29/49169: Assembling electrical component directly to terminal or elongated conductor
- Y10T 29/49204: Contact or terminal manufacturing
- D02G: CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D04B: KNITTING
- D10B: INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An electrical interconnect including at least one electrically-conductive fiber configured to form a stretchable interlaced configuration.

## Claims

### Claim 1

An electrical interconnect including at least one electrically-conductive fibre and at least one non-electrically conductive fibre knitted into a stretchable interlaced knitted configuration, the at least one electrically-conductive fibre forming interlaced loops which slide and change geometries within the interlaced configuration when stretched, such that an electrical resistance of the electrical interconnect is substantially unchanged when the electrical interconnect is repeatedly flexed or stretched about at least one three-dimensional surface.

### Claim 2 (depends on 1)

An electrical interconnect as claimed in claim 1 wherein the electrically-conductive fibre includes at least one of a conductive polymer, a metal wire, an enamelled metal wire, a metal wire coated by polyurethane, and a metal-coated textile yarn.

### Claim 3 (depends on 1)

An electrical interconnect as claimed in claim 1 wherein the non-electrically-conductive fibre includes at least one of polyester, nylon, Spandex filaments, and a composite thereof.

### Claim 4 (depends on 1)

A garment including an electrical interconnect formed in accordance with claim 1.

### Claim 5

A method of forming an electrical interconnect including knitting at least one electrically-conductive fibre and at least one non-electrically conductive fibre into a stretchable interlaced knitted configuration, the at least one electrically-conductive fibre forming interlaced loops which slide and change geometries within the interlaced configuration when stretched, wherein the interlaced configuration is configured such that an electrical resistance of the electrical interconnect is substantially unchanged when the electrical interconnect is repeatedly flexed or stretched about at least one three-dimensional surface.

### Claim 6 (depends on 5)

A method as claimed in claim 5 wherein the electrically-conductive fibre includes at least one of a conductive polymer, a metal wire, an enamelled metal wire, a metal wire coated by polyurethane, and a metal-coated textile yarn.

### Claim 7 (depends on 5)

A method as claimed in claim 5 wherein the non-electrically conductive fibre includes at least one of polyester, nylon, Spandex filaments, and a composite thereof.