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Patent Searching and Data


Title:
PRODUCTION METHOD FOR INSULATED ELECTRICAL WIRE, AND INSULATED ELECTRICAL WIRE
Document Type and Number:
WIPO Patent Application WO/2019/021851
Kind Code:
A1
Abstract:
Provided is a production method for an insulated electrical wire. The production method makes it possible for a sealant to efficiently and highly uniformly penetrate between strands when the sealant is used to apply a water-stopping treatment to the insulated electrical wire. The present invention also provides an insulated electrical wire that has high water-stopping performance where a water-stopping treatment has been applied between strands. The present invention involves performing a water-stopping treatment on an insulated electrical wire 1 that has: a conductor 2 that comprises a plurality of intertwined strands that comprise a conductive material; and an insulating coating 3 that covers the outer periphery of the conductor 2. The water-stopping treatment involves: a partial exposure step in which an exposed part 10 at which the insulating coating 3 has been removed from the outer periphery of the conductor 2 and a coated part 20 at which the insulating coating 3 is covering the outer periphery of the conductor 2 are provided along the longitudinal-axis direction of the insulated electrical wire 1 so as to be adjacent; a density modification step in which the intervals between the strands of the exposed part 10 are widened and the density of conductive material per unit length of the exposed part 10 is increased; and a filling step in which the space between the strands of the exposed part 10 is filled with a sealant 5 that comprises an insulating material.

Inventors:
FURUKAWA TOYOKI (JP)
Application Number:
PCT/JP2018/026425
Publication Date:
January 31, 2019
Filing Date:
July 13, 2018
Export Citation:
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Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H01B7/285; H01B13/32
Foreign References:
DE102011083952A12013-04-04
JP2013097922A2013-05-20
JP2000011771A2000-01-14
JP2014519137A2014-08-07
Attorney, Agent or Firm:
WENO & PARTNERS (JP)
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