公开(公告)号：US20220181043A1

公开(公告)日：2022-06-09

申请号：US17680720

申请日：2022-02-25

Applicant: ESSEX FURUKAWA MAGNET WIRE JAPAN CO., LTD.

Inventor： Ayumi YAMAMOTO ,  Keisuke IKEDA ,  Keiichi TOMIZAWA

IPC: H01B3/46 ,  H01F5/06 ,  H01B7/02 ,  H01B3/30

Abstract: An insulated wire, including: a conductor and an insulating film covering the conductor; in which at least one insulating layer constituting the insulating film contains: a thermosetting resin A, and a resin B that is ranked lower than the thermosetting resin A in a tribo-electric series.

公开(公告)号：US20220165451A1

公开(公告)日：2022-05-26

申请号：US17669175

申请日：2022-02-10

Applicant: Essex Furukawa Magnet Wire Japan Co., Ltd.

Inventor： Keiichi TOMIZAWA ,  Akira TACHIBANA ,  Daisuke MUTO

IPC: H01B7/02 ,  H01B1/02 ,  H01B3/30 ,  H01B3/36 ,  H01F5/06

Abstract: Provided is an electrical conducting wire in which eddy current loss is effectively suppressed, mechanical strength is excellent, and electrical conductivity is also excellent while aluminum strands that are not coated with insulating resin are used as strands constituting a split conductor.
An electrical conducting wire, including: a split conductor composed of multiple aluminum strands arranged in parallel to each other or multiple aluminum strands twisted into a helix, wherein each of the strands contains 0.01 to 0.4 mass % of Fe, 0.3 to 0.5 mass % of Cu, 0.04 to 0.3 mass % of Mg, 0.02 to 0.3 mass % of Si, and 0.001 to 0.01 mass % of Ti and V in total, with the balance being Al and inevitable impurities; and wherein each of the strands is not coated with an insulating resin.

公开(公告)号：US20210343446A1

公开(公告)日：2021-11-04

申请号：US17370134

申请日：2021-07-08

Applicant: Essex Furukawa Magnet Wire Japan Co., Ltd.

Inventor： Daisuke MUTO ,  Keiichi TOMIZAWA ,  Hideo FUKUDA

IPC: H01B3/30 ,  H02K3/30 ,  H02K3/40

Abstract: An insulated wire including: a conductor; and an insulating film provided on an outer periphery of the conductor, wherein the insulating film satisfies the following relation between a relative permittivity (ε) of the insulating film at 0.2 atm and a relative permittivity (ε0) of an outermost layer of the insulating film at 0.2 atm. ε≤3.0 and ε0/ε≥1.2.