Insulated wire, and electric/electronic equipments, motor and transformer using the same
US-2016055940-A1 · Feb 25, 2016 · US
Insulated wire and rotating electrical machine
US10319496B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10319496-B2 |
| Application number | US-201715587707-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 5, 2017 |
| Priority date | Nov 7, 2014 |
| Publication date | Jun 11, 2019 |
| Grant date | Jun 11, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An insulated wire, having at least one foamed insulating layer composed of a thermosetting resin having bubbles, directly or indirectly on an outer periphery of a conductor, wherein the foamed insulating layer has a different bubble density in a thickness direction thereof; and a rotating electrical machine.
First claim
Opening claim text (preview).
The invention claimed is: 1. An insulated wire, comprising: at least one foamed insulating layer composed of a thermosetting resin having bubbles, directly or indirectly on an outer periphery of a conductor, wherein the thermosetting resin is selected from a polyamideimide resin, a polyimide resin, a polyamide resin, a polyetherimide resin, a polyesterimide resin, and a polyethersulfone resin, wherein the foamed insulating layer has a difference in a bubble density in a thickness direction thereof to be 3% or more, and wherein an average bubble diameter of the foamed insulating layer is 10 μm or less. 2. The insulated wire according to claim 1 , wherein a difference of the bubble density in the thickness direction of the foamed insulating layer is 3% or more and 90% or less. 3. The insulated wire according to claim 1 , wherein an average bubble diameter in the foamed insulating layer is 1 nm or more and 10 μm or less. 4. The insulated wire according to claim 1 , wherein a thickness of the foamed insulating layer is from 10 to 200 μm. 5. A rotating electrical machine comprising the insulated wire according to claim 1 .
Assignees
Inventors
Classifications
Windings characterised by the insulating material · CPC title
Polyimides or polyesterimides · CPC title
Insulation of windings · CPC title
the liquid phase being organic · CPC title
- H01B7/02Primary
Disposition of insulation · CPC title
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Frequently asked questions
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- What does patent US10319496B2 cover?
- An insulated wire, having at least one foamed insulating layer composed of a thermosetting resin having bubbles, directly or indirectly on an outer periphery of a conductor, wherein the foamed insulating layer has a different bubble density in a thickness direction thereof; and a rotating electrical machine.
- 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 H01B7/02. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 11 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).