Title:
INSULATED WIRE
Document Type and Number:
Japanese Patent JP2022084533
Kind Code:
A
Abstract:
To provide an insulated wire inhibiting occurrence of a partial discharge and a film crack even when the insulated wire is used in a coil of a motor used in high voltage drive and/or inverter drive.SOLUTION: An insulated wire including a conductor formed into a long shape and an insulation film formed by stacking one or a plurality of insulating layers covering the conductor, the insulating layer has a porous region and a resin region. The porous region is formed of a resin and a plurality of voids. The resin region is formed of the resin. In the insulating layer, a boundary surface is not provided between a first boundary surface located on a radially inner side and a second boundary surface located on a radially outer side, and the porous region and the resin region are arranged in this order from the first boundary surface toward the second boundary surface.SELECTED DRAWING: Figure 1
Inventors:
USHIWATA TAKAMI
NISHI HAJIME
ANDO IKUMI
HONDA YUKI
NISHI HAJIME
ANDO IKUMI
HONDA YUKI
Application Number:
JP2021176057A
Publication Date:
June 07, 2022
Filing Date:
October 28, 2021
Export Citation:
Assignee:
HITACHI METALS LTD
International Classes:
H01B7/02; H01F5/00; H01F5/06
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