Electronic wire and cable

Patent metadata

Field	Value
Publication number	US-11600405-B2
Application number	US-202017127035-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	Aug 1, 2017
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

An electronic wire and a cable which are excellent in bending resistance even when a diameter is small. The electronic wire has a conductor and a resin insulating layer coated on the conductor. The conductor is a double twisted wire in which twisted wires formed by twisting a plurality of wires are twisted, a diameter of the wire is 0.05 mm or more and 0.2 mm or less, a cross-sectional area of the conductor is 1.0 mm2 or more and 3.0 mm2 or less, a breaking elongation of the conductor is 10% or more and 17% or less, a tensile strength of the conductor is 200 MPa or more and 400 MPa or less, and the insulating layer is disposed to be in close contact with the conductor and has a solid structure.

First claim

The invention claimed is:

1. A cable comprising: a first electronic wire; a second electronic wire; and a jacket coated on the first electronic wire and the second electronic wire, wherein each of the first electronic wire and the second electronic wire includes a conductor and a resin insulating layer coated on the conductor, wherein the conductor is a double twisted wire in which twisted wires formed by twisting a plurality of wires are twisted, less, wherein a diameter of the wire is 0.05 mm or more and 0.2 mm or less, wherein a cross-sectional area of the conductor is 1.0 mm 2 or more and 3.0 mm 2 or wherein a tensile strength of the conductor is 260 MPa or more and 400 MPa or less, wherein a breaking elongation of the conductor is 10% or more and 15% or less, wherein the insulating layer is disposed to be in close contact with the conductor, and wherein a release layer is provided between the first electronic wire and the jacket and between the second electronic wire and the jacket.

2. The cable according to claim 1 ,
wherein the conductor is made of soft copper.

3. The cable according to claim 1 ,
wherein the insulating layer has a solid structure which is not a foamed layer.

4. The cable according to claim 1 ,
wherein the insulting layer includes a flame retardant polyolefin resin.

5. The cable according to claim 1 ,
wherein the jacket includes a plurality of layers, and an outermost layer of the plurality of layers is formed of polyurethane resin.

6. The cable according to claim 1 , further comprising:
a third electronic wire and a fourth electronic wire having a diameter smaller than a diameter of the first electronic wire and the second electronic wire,
wherein each of the third electronic wire and the fourth electronic wire includes a conductor which is a twisted wire formed by twisting a plurality of wires,
wherein the third electronic wire and the fourth electronic wire are twisted together to form a twisted pair electronic wire, and
wherein a breaking elongation of the conductors of the third electronic wire and the fourth electronic wire is not 10% or more and 15% or less, and a tensile strength of the conductors of the third electronic wire and the fourth electronic wire is not 260 MPa or more and 400 MPa or less.

7. The cable according to claim 6 ,
wherein the first electronic layer and the second electronic layer are power supply lines, and the third electronic layer and the fourth electronic layer are signal lines.

Assignees

• Sumitomo Electric Industries

Inventors

• KOHORI Takaya
• Okawa Hiroyuki

Classifications

• H01B7/0876

  comprising twisted pairs · CPC title

• H01B3/308

  Wires with resins · CPC title

• H01B1/026

  Alloys based on copper · CPC title

• H01B7/04

  Flexible cables, conductors, or cords, e.g. trailing cables · CPC title

• H01B7/223 Primary

  forming part of a high tensile strength core · CPC title