Communication cable

Patent metadata

Field	Value
Publication number	US-2024282484-A1
Application number	US-202218568972-A
Country	US
Kind code	A1
Filing date	Jun 6, 2022
Priority date	Jun 25, 2021
Publication date	Aug 22, 2024
Grant date	—

Abstract

A communication cable 1 includes: a core wire 2 having a conductor 21 and an insulating layer 22 covering an outer circumference of the conductor 21 ; and a film-like shield 3 that longitudinally surrounds an outer circumference of the core wire 2 , in which the film-like shield 3 includes a metal base layer 32 constituted by a metal layer, and a linear or band-shaped stripe member 33 that is in intimate contact with the metal base layer 32 , and a plurality of the stripe members 33 extend in an axial direction A 1 of the core wire 2 and are spaced apart from each other in a circumferential direction A 2 of the core wire.

First claim

1 . A communication cable comprising:
a core wire having a conductor and an insulating layer covering an outer circumference of the conductor; and a film-like shield that longitudinally surrounds an outer circumference of the core wire, wherein the film-like shield includes a metal base layer constituted by a metal layer, and a linear or band-shaped stripe member that is made of a material containing an organic polymer selected from polyethylene terephthalate, a polyolefin, and polyvinyl chloride, or a substance imparted with electrical conductivity by mixing a conductive additive into the organic polymer, a plurality of the stripe members extend in an axial direction of the core wire and are spaced apart from each other in a circumferential direction of the core wire, and a constituent material of the stripe members does not exhibit adhesiveness to the metal base layer, and the stripe members are adhered to a surface of the metal base layer using an adhesive or a bonding agent that is different from the constituent material of the stripe members.

2 . The communication cable according to claim 1 ,
wherein the stripe members are made of a material containing a substance imparted with electrical conductivity by mixing a conductive additive into the organic polymer.

3 . The communication cable according to claim 1 ,
wherein the stripe members are made of a material containing polyethylene terephthalate.

4 . The communication cable according to claim 1 ,
wherein the film-like shield further includes a metal coating layer as a metal layer that differs from the metal base layer, and the stripe members are held between the metal base layer and the metal coating layer.

5 . The communication cable according to claim 1 ,
wherein no other layer is provided on a surface of the film-like shield where the stripe members are disposed on a surface of the metal base layer.

6 . The communication cable according to claim 1 ,
wherein the communication cable is configured as a coaxial cable, and further includes a braided shield that surrounds an outer side of the film-like shield and is constituted by a braided body of bare metal wires.

7 . The communication cable according to claim 1 ,
wherein the film-like shield further includes a sheet-like polymer base member containing an organic polymer, the metal base layer is formed on a surface of the polymer base member, and the stripe members are disposed on a surface of the metal base layer that is opposite to the polymer base member.

8 . The communication cable according to claim 7 ,
wherein the communication cable includes a braided shield that is constituted by a braided body of bare metal wires, and surrounds the outer circumference of the core wire, and a surface of the film-like shield that is opposite to a surface on which the polymer base member is disposed is in contact with the braided shield.

9 . The communication cable according to claim 1 ,
wherein an arrangement interval between stripe members in the film-like shield is 1 mm or less.

10 . (canceled)

Assignees

• Autonetworks Technologies Ltd
• Sumitomo Wiring Systems
• Sumitomo Electric Industries

Inventors

• OZU Shuhei
• Kodama Hiroyuki
• Shimada Tatsuya
• Kobayashi Hiroyuki
• Yasuyoshi Yuta

Classifications

• H01B11/1033 Primary

  composed of a wire-braided conductor · CPC title

• H01B11/1008

  Features relating to screening tape per se · CPC title

• H01B11/18 Primary

  Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor · CPC title

• H05K9/00

  Screening of apparatus or components against electric or magnetic fields (devices for absorbing radiation from an antenna H01Q17/00) · CPC title