Shielded cable

Patent metadata

Field	Value
Publication number	US-9704615-B2
Application number	US-201514951626-A
Country	US
Kind code	B2
Filing date	Nov 25, 2015
Priority date	Nov 28, 2014
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A shielded cable comprising two insulated wire covered with first and second metal clad resin tapes each of which has a laminated metal layer and a resin layer. The first metal clad resin tape covers the circumference of the two insulated wires by open-wrapping and the second metal clad resin tape is spirally wrapped around the circumference of the first metal clad resin tape. The first and second metal clad resin tapes are disposed while the metal layers face each other and, in the portion where the second metal clad resin tape is overlapped by wrapping, the metal layer of the overlapped one second metal clad resin tape and the metal layer of the other second metal clad resin tape are in contact with the first metal clad resin tape. The shielded cable can prevent sharp signal attenuation in a high frequency region and is easy to bend and flexible.

First claim

The invention claimed is:

1. A shielded cable comprising two insulated wires covered with first and second metal clad resin tapes each having a configuration of laminated metal layer and resin layer, wherein
the first metal clad resin tape covers the circumference of the two insulated wires by open-wrapping so that a turn of the first metal clad resin tape does not overlap each other,
the second metal clad resin tape is spirally wrapped around the circumference of the first metal clad resin tape so that a part of the second metal clad resin tape is overlapped with each other and another part of the second metal clad resin tape is not overlapped with each other,
the first and second metal clad resin tapes are in contact with each other while the metal layers thereof face each other and the metal layer of the first metal clad resin tape and the metal layer of the second metal clad resin tape are connected in a length direction of the cable,
a drain wire consisting of a cover-free conductor is attached to the two insulated wires, and
the metal layer of the second metal clad resin tape is in contact with the drain wire.

2. The shielded cable according to claim 1 , wherein the first metal clad resin tape is spirally open-wrapped.

3. The shielded cable according to claim 2 , wherein the wrapping direction of the first metal clad resin tape is the same as that of the second metal clad resin tape.

4. The shielded cable according to claim 1 , wherein the first metal clad resin tape is provided by longitudinal wrapping and is open-wrapped so that the edge portions of the first metal clad resin tape in a width direction do not overlap each other.

5. The shielded cable according to claim 4 , wherein the first metal clad resin tape is disposed in a cross section perpendicular to a long direction of the cable so as to be linearly symmetrical to symmetry axis which is a line that passes through a contact portion of the two insulated wires and is orthogonal to the arranging direction of the two insulated wires.

6. The shielded cable according to claim 4 , wherein, when a covering ratio in the case where the two insulated wires are all covered in the circumferential direction is taken as 100%, the first metal clad resin tape is longitudinally wrapped so as to cover the two insulated wires at a covering ratio of 50 to less than 100%.

Assignees

• Sumitomo Electric Industries

Inventors

• Matsuda Motoi
• Karube Katsumi
• KOBAYASHI Yuto
• Endo Takaki
• Arakawa Yoshiaki
• Matsushita Hayato

Classifications

• H01B3/004 Primary

  with conductive additives or conductive layers · CPC title

• H01B11/183

  Co-axial cables with at least one helicoidally wound tape-conductor · CPC title

• H01B11/002

  Pair constructions · CPC title

• H01B11/203

  forming a flat arrangement · CPC title