INSULATED ELECTRICAL WIRE HAVING EXCELLENT RESISTANCE TO BENDING PROCESS, COIL AND ELECTRONIC/ELECTRIC EQUIPMENT USING SAME

WIPO Patent Application WO/2016/103804

A1

Provided is an insulated electrical wire, a coil and an electronic/electric equipment using same. The insulated electrical wire has an insulation cover layer comprising a thermoplastic resin on the peripheral surface of a conductor, whereof the cross sectional shape is rectangular, having a long edge, a short edge, and a corner portion of curvature radius Rc, and is characterized by a thickness t1 (μm) of the insulation cover layer covering a surface at a long edge in a transversal cross section of the conductor, which continues in the axial line direction of the conductor, a thickness t2 (μm) of the insulation cover layer covering a surface at a short edge in the transversal cross section of the conductor, which continues in the axial line direction of the conductor, and a thickness t3 (μm) in a corner portion of the insulation cover layer, being related by the following formula (1): Formula (1) t3/{(t1 + t2)/2} ≥ 1.2, each of the t1 (μm) and t2 (μm) independently being 20 μm to 50 μm inclusive, and the value of the ratio of the conductor cross section Sc (mm2) over the insulated electrical wire cross section Sw (mm2) being related by the following formula (2): Formula (2) 1.0 > Sc/Sw ≥ 0.8.

JP2016126980	TWIST PAIR WIRE AND WIRE HARNESS
JP4370417	Shielded cable

OYA MAKOTO (JP)
AOI TSUNEO (JP)

PCT/JP2015/075973

June 30, 2016

September 14, 2015

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FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA MAGNET WIRE CO LTD (JP)

H01B7/00; H01B7/02; H01F5/06; H02K3/30; H01B3/30; H01B3/42

JPS61161607A	1986-07-22
JP2009123418A	2009-06-04

See also references of EP 3239988A4

IIDA, Toshizo et al. (JP)
Toshizo Iida (JP)

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