Covered electrical wire, terminal-equipped electrical wire, copper alloy wire, and copper alloy stranded wire

Patent metadata

Field	Value
Publication number	US-11315701-B2
Application number	US-201716347867-A
Country	US
Kind code	B2
Filing date	Jun 21, 2017
Priority date	Nov 7, 2016
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

A covered electrical wire comprising a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a strand of a plurality of copper alloy wires: composed of a copper alloy containing Fe in an amount of 0.1% by mass or more and 1.6% by mass or less, P in an amount of 0.05% by mass or more and 0.7% by mass or less, and Sn in an amount of 0.05% by mass or more and 0.7% by mass or less, with the balance being Cu and impurities; and having a wire diameter of 0.5 mm or less, the copper alloy wire having a tensile strength of 385 MPa or more and a work-hardening exponent of 0.1 or more.

First claim

The invention claimed is:

1. A covered electrical wire comprising a conductor and an insulating covering layer provided outside the conductor,
the conductor being a stranded wire composed of a strand of a plurality of copper alloy wires:
composed of a copper alloy consisting of
Fe in an amount of 0.1% by mass or more and 1.6% by mass or less,
P in an amount of 0.05% by mass or more and 0.7% by mass or less,
Sn in an amount of 0.05% by mass or more and 0.7% by mass or less, and
C, Si, and Mn in an amount of more than 30 ppm and less than 70 ppm by mass in total and C is contained in an amount of 30 ppm or more,
with the balance being Cu and impurities, and

each copper alloy wire having a wire diameter of 0.5 mm or less,
the copper alloy wire having a tensile strength of 385 MPa or more and a work-hardening exponent of 0.1 or more,
wherein the copper alloy has a mass ratio of Fe/P of 4.0 or more.

2. The covered electrical wire according to claim 1 , wherein the copper alloy wire provides an elongation at break of 5% or more.

3. The covered electrical wire according to claim 1 , wherein the copper alloy wire has a conductivity of 60% IACS or more and a tensile strength of 400 MPa or more.

4. The covered electrical wire according to claim 1 , having a terminal fixing force of 45 N or more.

5. The covered electrical wire according to claim 1 , having an impact resistance energy of 3 J/m or more in a state with a terminal attached.

6. The covered electrical wire according to claim 1 , wherein an impact resistance energy of the covered electrical wire is 6 J/m or more.

7. A terminal-equipped electrical wire comprising a covered electrical wire according to claim 1 and a terminal attached to an end of the covered electrical wire.

Assignees

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

Inventors

• Sakamoto Kei
• Inoue Akiko
• Kuwabara Tetsuya
• Nakamoto Minoru
• Oshima Yusuke
• Nakai Yoshihiro
• Nanjo Kazuhiro
• Nishikawa Taichiro
• Utsunomiya Kiyotaka
• Ootsuka Yasuyuki
• Taguchi Kinji
• Kobayashi Hiroyuki

Classifications

• H01B1/02

  mainly consisting of metals or alloys · CPC title

• C22F1/08 Primary

  of copper or alloys based thereon · CPC title

• H01R31/06

  Intermediate parts for linking two coupling parts, e.g. adapter (with a holder adapted for supporting apparatus to which its counterpart is attached H01R33/94) · CPC title

• H01B7/0009

  Details relating to the conductive cores · CPC title

• H02G15/02

  Cable terminations (for gas- or oil-filled cables H02G15/22) · CPC title