Non-metallic light conductive wire and its method and application products

Patent metadata

Field	Value
Publication number	US-9934881-B2
Application number	US-201414570782-A
Country	US
Kind code	B2
Filing date	Dec 15, 2014
Priority date	May 31, 2014
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

The present invention relates to a non-metallic light conductive wire, a composite conductive wire, a special cable, a motor and the like application products made of the conductive wire, and a method of making the composite conductive wire.

First claim

What is claimed is:

1. A non-metallic light weight conductive wire, comprising a bundle of non-metallic light conductive branch conductor wires ( 1 ) and an insulating protective layer ( 2 ), the bundle of non-metallic light conductive branch conductor wires ( 1 ) forming an inner conductor, which is wrapped by the insulating protective layer ( 2 ), wherein the non-metallic light conductive branch conductor wire ( 1 ) includes a high strength polymer fiber core ( 1 . 1 ) and a carbon nanotube conductive layer ( 1 . 2 ) wrapped on the core; wherein a plurality of non-metallic light conductive branch conductor wires ( 1 ), which twisted mutually to form the inner conductor, wherein the diameter of the core is 0.01 mm to 2 mm and wherein the thickness of the conductive layer is 0.01 times to twice of the diameter of the core.

2. The conductive wire described in claim 1 , wherein when the conductive wire is used to make plain conductors, the insulating protective layer ( 1 ) includes a single polymer insulating layer, which is made of anyone of the materials of polyimide (PI), polyamideimide (PAI) and crosslinked polyethylene (XLPE); and when the conductive wire is used to make special cables, the insulating protective layer is a multilayered structure, which includes a conductor shielding layer, an insulating layer, an insulating shielding layer and an external protective layer.

3. The conductive wire described in claim 1 , wherein the core ( 1 . 1 ) is made of any high strength fibers, including but not limited to polyether ether ketone (PEEK) fiber, polyimide (PI) fiber, polyamide (PA) fiber, polyamideimide (PAI) fiber and ultra high molecular weight polyethylene (UHMPE) fiber, and that the diameter of the core is 0.01 mm to less than 1 mm.

4. The conductive wire described in claim 1 , wherein the carbon nanotube conductive layer ( 1 . 2 ) includes a single-wall carbon nanotube, a double-wall carbon nanotube, a multi-wall carbon nanotube or a hybrid carbon nanotube, and that the thickness of the conductive layer is 1.1 times to twice of the diameter of the core.

5. A composite conductive wire comprising one or a plurality of the conductive wires of claim 1 .

6. A special cable comprising one or a plurality of the conductive wires of claim 1 .

7. A composite conductive wire comprising two or more of the conductive wires of claim 1 .

8. A special cable comprising, the special cable being made of two or more of the conductive wires of claim 1 .

Assignees

• Univ Xi An Jiaotong

Inventors

• Niu Chunming
• Xie Chong
• Cheng Yonghong

Classifications

• H01B7/17

  Protection against damage caused by external factors, e.g. sheaths or armouring · CPC title

• H01B1/04

  mainly consisting of carbon-silicon compounds, carbon or silicon · CPC title

• H01B3/306

  Polyimides or polyesterimides · CPC title

• Y10T29/49119

  Brush · CPC title

• H01B7/0009

  Details relating to the conductive cores · CPC title