Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Sumitomo Electric Toyama Co., Ltd.

Yasuyuki Otsuka

Hayato Ooi

Yoshihiro Nakai

Tetsuya Kuwabara

Misato Kusakari

Taichiro Nishikawa

Kinji Taguchi

Toyoki Furukawa

Fumitoshi Imasato

Akiko Inoue

Kei Sakamoto

Hiroyuki Kobayashi

Takehiro Hosokawa

Jun Yoshimoto

Toru Tanji

Taichirou Nishikawa

Tooru Tanji

Kazuhiro Nanjo

Makoto Higashikozono

Shigeyuki Tanaka

Yutaka Takata

Tetsuya Nakamura

Yoshiyuki Takaki

Masato Inoue

Masanobu Yoshimura

Yusuke Oshima

Masashi Kimura

Minoru Nakamoto

Shinichi Kitamura

Kyoma Sahashi

Soichirou Tsukamoto

Kotaro Maeda

Hiroaki Takai

Akihiko Tanaka

Hiroki Hirai

Satoshi Yamamoto

Housei Mizuno

Hidetoshi Ishida

Ryoya Okamoto

Masashi Sato

Yoshiaki Yamano

Tsuyoshi Nonaka

Masatada Numano

Ryoma Uegaki

Kazuhiro Goto

Hirotaka Kato

Naoya Nishimura

Takaaki Ito

Hironobu Rachi

Satoshi Murao

Yukihiro Sakamoto

Tomotaka Kurozu

Kazuyuki Nakagaki

Tetsuya Iwasaki

Ryo Toyoshima

Kensuke Yamada

Kazunari Sakura

Yoshiharu Deguchi

Naoaki Sawamura

Hitoshi Kishida

Tetsuya Kuwahara

Hideki Imamura

Yasuo Murayoshi

Naoyuki Ookubo

Yusuke Maejima

Koutarou Maeda

The wire harnessdisclosed by the present specification includes: a sheet-shaped base member; and a plurality of covered electric wires W fixed side by side along the base member, in which the transverse cross-sectional area of at least one of the plurality of covered electric wires W is different from the transverse cross-sectional area of another covered electric wire W, and the thickness of the covered electric wire W is substantially the same as the thickness of the covered electric wire W adjacent thereto.

Wire harness and wire harness routing apparatus

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

An aluminum alloy wire composed of an aluminum alloy, wherein the aluminum alloy contains more than or equal to 0.03 mass % and less than or equal to 1.5 mass % of Mg, more than or equal to 0.02 mass % and less than or equal to 2.0 mass % of Si, and a remainder of Al and an inevitable impurity, Mg/Si being more than or equal to 0.5 and less than or equal to 3.5 in mass ratio, and the aluminum alloy wire has a dynamic friction coefficient of less than or equal to 0.8.

Aluminum alloy wire, aluminum alloy strand wire, covered electrical wire, and terminal-equipped electrical wire

An electric wire conductor is excellent in space saving and flexibility and is less likely to concentrate a load on specific elemental wires, and a covered electric wire and a wire harness contain the electric wire conductor. The electric wire conductor contains a wire strand containing a plurality of elemental wires twisted together. The wire strand has a sector-shaped part in which a cross-section intersecting an axial direction of the wire strand contains either a single edge or two edges touching each other at an apex, and an outward curve connecting the ends of the single edge or the two edges. In the sector-shaped part, the elemental wires having deformation ratios from a circle lower at an outer peripheral part facing an outer periphery of the sector-shaped part than at a center part of the sector-shaped part located inside the outer peripheral part in the cross-section intersecting the axial direction.

Electric wire conductor, covered electric wire, wire harness, and method for manufacturing electric wire conductor

An aluminum alloy contains at least 0.03 mass % and at most 1.5 mass % of Mg, at least 0.02 mass % and at most 2.0 mass % of Si, and a remainder composed of Al and an inevitable impurity, a mass ratio Mg/Si being not lower than 0.5 and not higher than 3.5. In a transverse section of the aluminum alloy wire, a rectangular surface-layer void measurement region having a short side of 30 &#x3bc;m long and a long side of 50 &#x3bc;m long is taken from a surface-layer region extending by up to 30 &#x3bc;m in a direction of depth from a surface of the aluminum alloy wire. A total cross-sectional area of voids present in the surface-layer void measurement region is not greater than 2 &#x3bc;m.

An aluminum alloy contains equal to or more than 0.005 mass % and equal to or less than 2.2 mass % of Fe, and a remainder of Al and an inevitable impurity. In a transverse section of the aluminum alloy wire, a surface-layer void measurement region in a shape of a rectangle having a short side length of 30 &#x3bc;m and a long side length of 50 &#x3bc;m is defined within a surface layer region extending from a surface of the aluminum alloy wire by 30 &#x3bc;m in a depth direction, and a total cross-sectional area of voids in the surface-layer void measurement region is equal to or less than 2 &#x3bc;m.

An electric wire conductor having both flexibility and a space-saving property. Also provided are a covered electric wire and a wiring harness containing the electric wire conductor. An electric wire conductor contains a wire strand containing a plurality of elemental wires twisted together. The electric wire conductor has a flat portion in which a cross section intersecting an axial direction of the wire strand has a flat shape. Assuming a conductor cross-sectional area of the flat portion as s mmand a vacancy ratio defined as a ratio of vacancies not occupied by the elemental wires in a cross section of the flat portion as v %, the conductor cross-sectional area and the vacancy ratio satisfies v&#x3e;0.29 s+2.0. The covered electric wire contains electric wire conductor and an insulator covering the conductor. The wiring harness contains the covered electric wire.

Electric wire conductor, covered electric wire, and wiring harness

A wiring harness comprises a first covered electric wire, and a second covered electric wire. The first covered electric wire comprises a first electric wire conductor made of aluminum or an aluminum alloy and an insulator covering the first electric wire conductor. The first electric wire conductor comprises a wire strand of a plurality of elemental wires twisted together, and has a flat portion where a cross-section of the wire strand intersecting an axial direction of the wire strand has a flat shape. The second covered electric wire comprises a second electric wire conductor made of copper or a copper alloy and an insulator covering the second electric wire conductor. The second electric wire conductor has a lower flatness and a smaller conductor cross-sectional area than the first electric wire conductor of the first covered electric wire.

A wire harness includes: an electrical wire including a core wire and an insulating covering for covering the core wire; and a sheet material in which the electrical wire is disposed on a resin main surface, and a part of the main surface having contact with the electrical wire is thermally processed with the insulating covering of the electrical wire, thereby forming an electrical wire fixing part. A part of the sheet material including the electrical wire fixing part is softer than the insulating covering.

Wire harness and method of manufacturing 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 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

An electric wire conductor includes a wire strand having a plurality of elemental wires twisted together. The wire strand includes a deformed part in which a cross-section of the wire strand intersecting an axial direction of the wire strand is formed into a flat shape in which a width of the cross section is larger than a height of the cross section, and an entire outer periphery of the cross section is formed as an outward curve. In the cross-section of the deformed part, the elemental wires have deformation ratios from a circle of 70% or lower at an outer peripheral part facing the outer periphery of the deformed part than at a center part located inside the outer peripheral part.

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Yokkaichi, Japan

Yasuyuki Otsuka