Insulated wire, method of producing the insulated wire, method of producing a stator for a rotating electrical machine, and rotating electrical machine
US-2017004900-A1 · Jan 5, 2017 · US
Insulated wire, motor coil, and electrical or electronic equipment
US10483818B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10483818-B2 |
| Application number | US-201816104457-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 17, 2018 |
| Priority date | Feb 19, 2016 |
| Publication date | Nov 19, 2019 |
| Grant date | Nov 19, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
An insulated wire, having at least one thermosetting resin layer and at least one thermoplastic resin layer in this order, as covering layers, on a conductor having a quadrilateral cross-section, wherein, in a coating thickness of the covering layers, in each side to be formed on 4 sides of the quadrilateral cross-section of said insulated wire, a difference between the maximum value and the minimum value is each 20 μm or less, and a value of the maximum value divided by the minimum value of the whole sides is 1.3 or more; a motor coil; and an electrical or electronic equipment.
First claim
Opening claim text (preview).
The invention claimed is: 1. An insulated wire, comprising at least one thermosetting resin layer and at least one thermoplastic resin layer in this order, as covering layers, on a conductor having a quadrilateral cross-section, wherein, in each of 4 covering layer portions corresponding to 4 sides of the cross-section of said insulated wire, a difference between the maximum value and the minimum value of a coating thickness is each 20 μm or less, and in the whole of the above 4 covering layer portions, a value of the maximum value divided by the minimum value of the coating thickness is 1.3 or more. 2. The insulated wire as claimed in claim 1 , wherein, in each of the 4 covering layer portions, an average coating thickness of the thermosetting resin layer is 5 μm or more. 3. The insulated wire as claimed in claim 1 , wherein the covering layer portion giving the maximum value of the coating thickness in the whole of the above 4 covering layer portions, and the covering layer portion giving the minimum value of the coating thickness in the whole of the above 4 covering layer portions, lie next to each other. 4. The insulated wire as claimed in claim 1 , wherein, in the cross-section of the insulated wire, an average of the maximum value and the minimum value of the coating thickness of a pair of the covering layer portions corresponding to long sides facing each other is thinner than an average of the maximum value and the minimum value of the coating thickness of a pair of the covering layer portions corresponding to short sides facing each other. 5. The insulated wire as claimed in claim 1 , wherein a thermosetting resin which constitutes the thermosetting resin layer is selected from the group consisting of polyamideimide and polyimide. 6. The insulated wire as claimed in claim 1 , wherein a tensile elastic modulus at 25° C. of a thermosetting resin which constitutes the thermosetting resin layer is 2,000 MPa or more. 7. The insulated wire as claimed in claim 1 , wherein a thermoplastic to resin which constitutes the thermoplastic resin layer comprises polyetheretherketone or polyphenylenesulfide. 8. A motor coil comprising a lamination of more than one of the insulated wires as claimed in claim 1 . 9. An electrical or electronic equipment, comprising a built-in laminated body of more than one of the insulated wires as claimed in claim 1 .
Assignees
Inventors
Classifications
- H01F5/06Primary
Insulation of windings · CPC title
Disposition of insulation · CPC title
Insulated conductors or cables characterised by their form · CPC title
Other macromolecular compounds · CPC title
Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen or carbon in the main chain of the macromolecule, not provided for in group H01B3/302 · CPC title
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- What does patent US10483818B2 cover?
- An insulated wire, having at least one thermosetting resin layer and at least one thermoplastic resin layer in this order, as covering layers, on a conductor having a quadrilateral cross-section, wherein, in a coating thickness of the covering layers, in each side to be formed on 4 sides of the quadrilateral cross-section of said insulated wire, a difference between the maximum value and the mi…
- Who is the assignee on this patent?
- Furukawa Electric Co Ltd, Furukawa Magnet Wire Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01F5/06. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 19 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).