Coaxial cable and cable assembly

Patent metadata

Field	Value
Publication number	US-11437692-B2
Application number	US-202117236771-A
Country	US
Kind code	B2
Filing date	Apr 21, 2021
Priority date	Jun 18, 2020
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

A coaxial cable is composed of a conductor, an electrical insulating member covering a periphery of the conductor, a shield layer covering a periphery of the electrical insulating member, and a sheath covering a periphery of the shield layer. The shield layer is configured to include a lateral winding shielding portion with a plurality of metal wires being helically wrapped around the periphery of the electrical insulating member, and a batch plating portion made of a hot-dip plating covering respective peripheries of the lateral winding shielding portion. The shield layer includes an outer peripheral portion, in which the metal wires are covered with the batch plating portion, and an inner peripheral portion, in which the metal wires are not covered with the batch plating portion. The outer peripheral portion of the shield layer includes intermetallic compounds between the metal wires and the batch plating portion.

First claim

What is claimed is:

1. A coaxial cable, comprising:
a conductor;
an electrical insulating member covering a periphery of the conductor;
a shield layer covering a periphery of the electrical insulating member; and
a sheath covering a periphery of the shield layer,
wherein the shield layer includes a lateral winding shielding portion comprising a plurality of metal wires being helically wrapped around the periphery of the electrical insulating member in such a manner as to cover the periphery of the electrical insulating member, and a batch plating portion comprising a hot dip plating, which is covering a periphery of the lateral winding shielding portion,
wherein the shield layer includes an outer peripheral portion, in which the plurality of metal wires are covered with the batch plating portion, and an inner peripheral portion, in which the plurality of metal wires are not covered with the batch plating portion,

wherein the outer peripheral portion of the shield layer includes an intermetallic compound between the plurality of metal wires and the batch plating portion, and
wherein the shield layer is configured in such a manner as to be higher in electrical conductivity in the inner peripheral portion, than in the outer peripheral portion.

2. A coaxial cable, comprising:
a conductor;
an electrical insulating member covering a periphery of the conductor;
a shield layer covering a periphery of the electrical insulating member; and
a sheath covering a periphery of the shield layer,
wherein the shield layer includes a lateral winding shielding portion comprising a plurality of metal wires being helically wrapped around the periphery of the electrical insulating member in such a manner as to cover the periphery of the electrical insulating member, and a batch plating portion comprising a hot dip plating, which is covering a periphery of the lateral winding shielding portion,
wherein the shield layer includes an outer peripheral portion, in which the plurality of metal wires are covered with the batch plating portion, and an inner peripheral portion, in which the plurality of metal wires are not covered with the batch plating portion,

wherein the outer peripheral portion of the shield layer includes an intermetallic compound between the plurality of metal wires and the batch plating portion, and
wherein the shield layer is configured in such a manner that adjacent ones of the plurality of metal wires in a circumferential direction of the coaxial cable are spaced apart from each other, and the spaced apart plurality of metal wires are joined with each other via the batch plating portion.

3. A coaxial cable, comprising:
a conductor;
an electrical insulating member covering a periphery of the conductor;
a shield layer covering a periphery of the electrical insulating member; and
a sheath covering a periphery of the shield layer,
wherein the shield layer includes a lateral winding shielding portion comprising a plurality of metal wires being helically wrapped around the periphery of the electrical insulating member in such a manner as to cover the periphery of the electrical insulating member, and a batch plating portion comprising a hot dip plating, which is covering a periphery of the lateral winding shielding portion,
wherein the shield layer includes an outer peripheral portion, in which the plurality of metal wires are covered with the batch plating portion, and an inner peripheral portion, in which the plurality of metal wires are not covered with the batch plating portion,

wherein the outer peripheral portion of the shield layer includes an intermetallic compound between the plurality of metal wires and the batch plating portion, and
wherein each of the plurality of metal wires comprises a tensile strength of not lower than 200 MPa and not higher than 380 MPa, and an elongation of not lower than 7 percent and not higher than 20 percent.

4. A cable assembly, comprising:
a coaxial cable comprising:
a conductor;
an electrical insulating member covering a periphery of the conductor;
a shield layer covering a periphery of the electrical insulating member; and
a sheath covering a periphery of the shield layer,
wherein the shield layer includes a lateral winding shielding portion comprising a plurality of metal wires being helically wrapped around the periphery of the electrical insulating member in such a manner as to cover the periphery of the electrical insulating member, and a batch plating portion comprising a hot dip plating, which is covering a periphery of the lateral winding shielding portion,
wherein the shield layer includes an outer peripheral portion, in which the plurality of metal wires are covered with the batch plating portion, and an inner peripheral portion, in which the plurality of metal wires are not covered with the batch plating portion,
wherein the outer peripheral portion of the shield layer includes an intermetallic compound between the plurality of metal wires and the batch plating portion; and

a terminal member integrally provided to at least one end portion of the coaxial cable.

5. A coaxial cable, comprising:
a conductor;
an electrical insulating member covering a periphery of the conductor; and
a shield layer covering a periphery of the electrical insulating member; and
wherein the shield layer includes a lateral winding shielding portion comprising a plurality of metal wires being helically wrapped around the periphery of the electrical insulating member in such a manner as to cover the periphery of the electrical insulating member, and a batch plating portion comprising a hot dip plating, which is covering a periphery of the lateral winding shielding portion,
wherein the shield layer includes an outer peripheral portion, in which the plurality of metal wires are covered with the batch plating portion, and an inner peripheral portion, in which the plurality of metal wires are not covered with the batch plating portion,
wherein the outer peripheral portion of the shield layer includes an intermetallic compound between the plurality of metal wires and the batch plating portion, and
wherein the shield layer is configured in such a manner that adjacent ones of the plurality of metal wires in a circumferential direction of the coaxial cable are spaced apart from each other, and the spaced apart plurality of metal wires are joined with each other via the batch plating portion.

Assignees

• Hitachi Metals Ltd

Inventors

• Huang Detian
• Watanabe Takanobu
• Nonen Hideki
• Arai Masashi
• Kuroda Hiromitsu
• Okada Ryohei
• Sakurai Tamotsu

Classifications

• H01B11/20 Primary

  Cables having a multiplicity of coaxial lines · CPC title

• H01P3/06 Primary

  Coaxial lines · CPC title

• H01B11/1808

  Construction of the conductors · CPC title

• H01B11/06 Primary

  with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens · CPC title

• H01B7/02

  Disposition of insulation · CPC title