Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Fumitoshi Imasato

Yasuyuki Otsuka

Akiko Inoue

Hiroyuki Kobayashi

Takehiro Hosokawa

Yoshihiro Nakai

Tetsuya Kuwabara

Taichiro Nishikawa

Shigeyuki Tanaka

Toyoki Furukawa

Yutaka Takata

Tetsuya Nakamura

Kei Sakamoto

Yusuke Oshima

Kazuhiro Nanjo

Kyoma Sahashi

Minoru Nakamoto

Kinji Taguchi

Misato Kusakari

Yoshiaki Yamano

Kazuhiro Goto

Masato Inoue

Takaaki Ito

Hironobu Rachi

Naoya Nishimura

Ryo Toyoshima

Kensuke Yamada

Kazunari Sakura

Tetsuya Kuwahara

Hideki Imamura

Yusuke Maejima

A covered electric wire contains a conductor and an insulation covering which covers an outer surface of the conductor. The covered electric wire has a flat portion where a cross section of the conductor intersecting an axial direction of the covered electric wire has a flat shape which has a larger length in a width direction. The insulation covering contains, in the cross section of the flat portion, plane regions which contains, at the surface thereof: a width-directional region along the width direction; and a height-directional region intersecting the width direction. The insulation covering contains a region having a rounded shape having a radius at the junction between the width-directional region and the height-directional region, and the covered electric wire satisfies a relationship of R>t between the radius R and a thickness t of the insulation covering at the plane region. The wire harness contains the covered electric wire.

Covered electric wire and wire harness

A wire harness has less differences of the amount of deflection caused by the self weight when the wire harness is constructed by arranging the plurality of the electric wire having the different cross-sectional area of the conductor. A wire harness has first and second electric wires arranged side by side in a direction intersecting an axial direction of the electric wires. Each of the first and second electric wires includes a conductor with a plurality of elemental wires, the second electric wire has a larger conductor cross-sectional area than the first electric wire has, the second electric wire has the larger outer diameter of the elemental wires composing the conductor than the first electric wire has, and the second electric wire contains a same or smaller number of elemental wires composing the conductor in comparison with the first electric wire.

Wire harness

A covered electrical wire comprises a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a plurality of copper alloy wires composed of a copper alloy and twisted together, and having a wire diameter of 0.5 mm or less, the 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 one or more elements selected from Ni, Al, Cr and Co in an amount of 0.01% by mass or more and 0.7% by mass or less in total, with a balance being Cu and impurities.

Covered electrical wire, terminal-equipped electrical wire, copper alloy wire, copper alloy stranded wire, and method for manufacturing copper alloy wire

A covered electrical wire comprises a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a plurality of copper alloy wires composed of a copper alloy and twisted together, and has a wire diameter of 0.5 mm or less, the copper alloy containing Ni, or Ni and Fe in an amount of 0.1% by mass or more and 1.6% by mass or less in total, and P in an amount of 0.05% by mass or more and 0.7% by mass or less, with a balance being Cu and impurities, in the copper alloy, a ratio of precipitation of P to solid solution of P being 1.1 or more.

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

A method for producing an aluminum wire that has high strength and high conductivity even when reduced in diameter while having excellent elongation and improved in productivity. A method for producing an aluminum wire includes a solution step of subjecting a heat-treatable aluminum alloy material to a solution treatment, a wire-drawing step of subjecting the solution-treated aluminum alloy material to wire-drawing processing, a softening step of subjecting the wire-drawing processed aluminum alloy material to a softening treatment in a short time within 10 seconds, and an aging step of subjecting the softening-treated aluminum alloy material to an aging treatment.

Method for producing aluminum wire

Provided is an anticorrosive polyamide resin composition having excellent anticorrosive capability by possessing excellent adhesive strength to a polyolefin resin and a metal and excellent elongation. The anticorrosive polyamide resin composition contains a resin component that contains 70 to 90 mass % of a polyamide resin, and 30 to 10 mass % of an acid-modified polyolefin resin. A maleic acid anhydride-modified polyolefin resin is preferably used as the acid-modified polyolefin resin. Polypropylene is preferably used as the polyolefin resin.

Anticorrosive polyamide resin composition, and electric wire with terminal

A crimped terminal for automobiles includes an aluminum electric wire, a connecting terminal made from a copper-based material, and a resin-coated portion. The connecting terminal is crimped onto an end of the wire and includes a crimped member, a crimped portion where the terminal is crimped onto the wire, and the resin-coated portion disposed on the crimped portion, wherein the resin-coated portion is disposed on the crimped portion while an entire periphery of the crimped portion is coated with the resin-coated portion.

Crimped terminal wire for automobile

A wiring harness which is excellent in peel strength at a joining portion where conductors of electric wires are joined together, even if at least one of the electric wires have a small diameter. A wiring harness includes insulated wires whose conductors are partly exposed, and a metal leaf with which the exposed conductors are bound, where the bound conductors are welded preferably by ultrasonic welding, and the conductors including elemental wires have a joining portion where the elemental wires are joined together, the joining portion being inside the metal leaf. The elemental wires and the metal leaf are preferably made from copper, a copper alloy, aluminum and/or an aluminum alloy, and are preferably made from a same metal or a same alloy. At least one of the conductors preferably has a cross-sectional area of 0.35 mmor less.

Wiring harness and a method for producing the same, and a method for connecting insulated wires

Growing community of inventors

Yokkaichi, Japan

Fumitoshi Imasato