Rectangular wire, and method of producing the same and electrical equipment using the same

Patent metadata

Field	Value
Publication number	US-10319491-B2
Application number	US-201615061134-A
Country	US
Kind code	B2
Filing date	Mar 4, 2016
Priority date	Sep 6, 2013
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

A rectangular wire having: a multilayer conductor member constructed by stacking, in a thickness direction, a rectangular metallic conductor that has a layer of a thermosetting resin formed on the outer periphery thereof, the thermosetting resin having a glass transition temperature of 100° C. or more and 200° C. or less and having a urethane bond; and a layer of a thermoplastic resin having a melting point of 300° C. or more on the outer periphery of the multilayer conductor member.

First claim

The invention claimed is:

1. A rectangular wire having: a stacked multilayer conductor member comprising, in a thickness direction, a rectangular metallic conductor that has a layer of a thermosetting resin formed on the outer periphery thereof, the thermosetting resin having a glass transition temperature of 100° C. or more to 200° C. or less and the thermosetting resin is a thermosetting polyurethane-based resin; and a layer of a thermoplastic resin having a melting point of 300° C. or more to 450° C. or less only on the outer periphery of the multilayer conductor member, wherein the thickness of the thermoplastic resin layer is 40 μm to 200 μm, wherein the conductor has a width dimension perpendicular to a stacking direction and misalignment of the width dimension between one conductor to another adjacent conductor in the stacking direction is less than one-third of the width dimension.

2. The rectangular wire as claimed in claim 1 , wherein the thermoplastic resin is a resin selected from the group consisting of a polyaryletherketone, a modified polyetheretherketone, and a thermoplastic polyimide.

3. The rectangular wire as claimed in claim 1 , wherein the total number of stacking the rectangular metallic conductors in the thickness direction is 2 or more and 6 or less.

4. The rectangular wire as claimed in claim 1 , wherein a thickness of a baked coat layer comprising the thermosetting resin is 0.5 μm or more and 50 μm or less.

5. A method of producing a rectangular wire comprising: a step of forming a multilayer conductor member by stacking, in a thickness direction, a rectangular metallic conductor having formed by bake-coating a layer of a thermosetting resin on the outer periphery thereof, the thermosetting resin having a glass transition temperature of 100° C. or more to 200° C. or less and the thermosetting resin is a thermosetting polyurethane-based resin; and a step of coating a layer of a thermoplastic resin having a melting point of 300° C. or more to 450° C. or less only on the outer periphery of the multilayer conductor member, wherein the conductor has a width dimension perpendicular to a stacking direction and misalignment of the width dimension between one conductor to another adjacent conductor in the stacking direction is less than one-third of the width dimension.

6. An electrical equipment comprising a rectangular wire having: a stacked multilayer conductor member comprising, in a thickness direction, a rectangular metallic conductor having a layer of a thermosetting resin formed on the outer periphery thereof, the thermosetting resin having a glass transition temperature of 100° C. or more to 200° C. or less and the thermosetting resin is a thermosetting polyurethane-based resin; and a layer of a thermoplastic resin having a melting point of 300° C. or more to 450° C. or less only on the outer periphery of the multilayer conductor member, wherein the conductor has a width dimension perpendicular to a stacking direction and misalignment of the width dimension between one conductor to another adjacent conductor in the stacking direction is less than one-third of the width dimension.

Assignees

• Furukawa Electric Co Ltd
• Furukawa Magnet Wire Co Ltd

Inventors

• Fukuda Hideo
• Fujiwara Dai
• Aoi Tsuneo
• Kaneiwa Hiroshi
• Amano Yuki

Classifications

• H01F5/06

  Insulation of windings · CPC title

• H02K3/30

  Windings characterised by the insulating material · CPC title

• H01B3/307

  Other macromolecular compounds · CPC title

• H02K15/04

  of windings prior to their mounting into the machines (insulating windings H02K15/10, H02K15/12) · CPC title

• H01B13/065

  Insulating conductors with lacquers or enamels · CPC title