Sumitomo Wiring Systems, Limited

Sumitomo Electric Industries, Limited

Autonetworks Technologies, Limited

Hayato Ooi

Yasuyuki Otsuka

Tetsuya Kuwabara

Yoshihiro Nakai

Taichiro Nishikawa

Misato Kusakari

Kinji Taguchi

Toyoki Furukawa

Toru Tanji

Kei Sakamoto

Tooru Tanji

Satoshi Yamamoto

Makoto Higashikozono

Hidetoshi Ishida

Hiroshi Hayami

Yasuyuki Ootsuka

Hirotaka Kato

Kyoma Sahashi

Kenji Hori

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

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.

Provided are a covered wire and a wire harness having excellent heat resistance and an excellent appearance. Provided is a covered wire including a conductor and an insulating covering, in which the insulating covering is made of a resin composition, the resin composition includes a silane graft polyolefin, an unmodified polyolefin, a modified polyolefin having one or more functional groups selected from the group consisting of a carboxy group, an ester group, an acid anhydride group, an amino group, and an epoxy group, a flame retardant, a cross-linking catalyst, and zinc oxide and an imidazole-based compound, and the surface roughness Ra of the insulating covering is 4.0 &#x3bc;m or less.

Covered wire and wire harness

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.

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.

An electric wire conductor capable of achieving both flexibility and a space-saving property, a covered electric wire and a wiring harness including such an electric wire conductor. The electric wire conductor contains a wire strand containing a plurality of elemental wires twisted together, and has a flat portion where a cross-section intersecting an axial direction of the wire strand has a flat shape. A covered electric wire contains the electric wire conductors and an insulator covering the electric wire conductors. A wiring harness contains such covered electric wires.

Provided are an electric wire conductor having both flexibility and a space-saving property, a covered electric wire, and a wiring harness containing such an electric wire conductor. The electric wire conductor contains a plurality of elemental wires, and has a flat portion in which a cross-section intersecting an axial direction of the wire strand has a flat shape. Deformation ratios of the elemental wires at peripheral end parts in a width direction are 70% or lower of deformation ratios of the elemental wires at center parts. Further, a covered electric wire contains the electric wire conductor and an insulator covering the electric wire conductor.

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Yokkaichi, Japan

Hayato Ooi