Coaxial cable and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-10224682-B2
Application number	US-201715625306-A
Country	US
Kind code	B2
Filing date	Jun 16, 2017
Priority date	Jun 20, 2016
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

A coaxial cable includes a coaxial wire in which an inner insulator, an outer conductor and a sheath are sequentially and coaxially provided around a center conductor, and a substrate having a surface on which a first contact pad and a second contact pad are arranged. The sheath is removed at one end portion of the coaxial wire by a predetermined length, so that the inner insulator and the outer conductor are exposed, and a tip end of the inner insulator is removed by a predetermined length, so that the center conductor is exposed. The exposed portion of the center conductor is soldered to the first contact pad with the exposed portion of the inner insulator being bent relative to the sheath, and the exposed portion of the outer conductor is soldered to the second contact pad with being bent in a direction different from the bending direction of the inner insulator. A part of the coaxial wire covered by the sheath is standing at an angle of 30° or greater relative to the surface of the substrate.

First claim

What is claimed is:

1. A coaxial cable comprising:
a coaxial wire in which an inner insulator, an outer conductor and a sheath are sequentially and coaxially provided around a center conductor; and
a substrate having a surface on which a first contact pad and a second contact pad are arranged,
wherein the sheath is removed at one end portion of the coaxial wire by a predetermined length, so that the inner insulator and the outer conductor are exposed, and a tip end of the inner insulator is removed by a predetermined length, so that the center conductor is exposed,
wherein the exposed portion of the center conductor is soldered to the first contact pad with the exposed portion of the inner insulator being bent relative to the sheath, and the exposed portion of the outer conductor is soldered to the second contact pad with being bent in a direction different from the bending direction of the inner insulator, and
wherein a part of the coaxial wire covered by the sheath is standing at an angle of 30° or greater relative to the surface of the substrate,
wherein the first contact pad comprises a plurality of contact pads arranged on the same circumference on the substrate,
wherein the second contact pad is arranged inside the same circumference on the substrate, and
wherein each of the center conductors exposed from a plurality of the coaxial wires is fixed to each of the plurality of first contact pads and the respective outer conductors exposed from the plurality of coaxial wires are fixed to the second contact pad, so that the plurality of coaxial wires is arranged in a cylinder shape.

2. The coaxial cable according to claim 1 , wherein the substrate comprises a first substrate and a second substrate arranged above the first substrate and having an opening formed at a central portion thereof,
wherein the plurality of coaxial wires is arranged in a cylinder shape having a plurality of layers, and
wherein the coaxial wires to be connected to the first substrate pass through the opening of the second substrate.

3. A method of manufacturing a coaxial cable, comprising:
(a) at a terminal portion of a coaxial wire in which an inner insulator, an outer conductor and a sheath are sequentially and coaxially provided around a center conductor, removing the sheath by a predetermined length to expose the inner insulator and the outer conductor and removing a tip end of the inner insulator by a predetermined length to expose the center conductor;
(b) soldering the exposed portion of the center conductor to a first contact pad of a substrate with the inner insulator or the center conductor exposed from the sheath being bent relative to the sheath; and
(c) bending the exposed portion of the outer conductor in a direction different from the bending direction of the inner insulator or the center conductor and soldering the same to a second contact pad of the substrate, and
standing a part of the coaxial wire covered by the sheath so as to form an angle of 30° or greater relative to the substrate,
wherein in the process (b) of soldering the exposed portion of the center conductor, each of the center conductors exposed from a plurality of the coaxial wires is fixed to each of a plurality of the first contact pads arranged on the same circumference on the substrate, and
wherein in the process (c) of soldering the exposed portion of the outer conductor, the respective outer conductors exposed from the plurality of coaxial wires are fixed to the second contact pad arranged inside the same circumference on the substrate.

4. The method according to claim 3 , wherein the substrate comprises a first substrate and a second substrate having an opening formed at a central portion thereof, and the method further comprises:
(d) letting some coaxial wires of the plurality of coaxial wires pass through the opening of the second substrate;
(e) executing the process (b) of soldering the exposed portion of the center conductor and the process (c) of soldering the exposed portion of the outer conductor for the coaxial wires having not passed through the opening of the second substrate, on the second substrate; and
(f) executing the process (b) of soldering the exposed portion of the center conductor and the process (c) of soldering the exposed portion of the outer conductor for the coaxial wires having passed through the opening of the second substrate, on the first substrate.

Assignees

• Sumitomo Electric Industries

Inventors

• Watanabe Yoshimasa
• Sato Kazuhiro
• Yoshida Hitomi

Classifications

• H01B13/016

  for manufacturing co-axial cables (applying discontinuous insulation H01B13/20) · CPC title

• H01R9/0506

  Connection between three or more cable ends · CPC title

• H01R12/53

  connecting to cables except for flat or ribbon cables · CPC title

• H01B7/18

  Protection against damage caused} by wear, mechanical force or pressure; {Sheaths; Armouring · CPC title

• H01B7/0241

  comprising one or more helical wrapped layers of insulation · CPC title