Electrical cable and manufacturing thereof
US-2024420871-A1 · Dec 19, 2024 · US
Insulated wire and rotating electrical machine
US2017236618A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017236618-A1 |
| Application number | US-201715587707-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 5, 2017 |
| Priority date | Nov 7, 2014 |
| Publication date | Aug 17, 2017 |
| Grant date | — |
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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).
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 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 . The insulated wire according to claim 1 , 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. 6 . A rotating electrical machine comprising the insulated wire according to claim 1 .
Assignees
Inventors
Classifications
Insulation of windings · CPC title
Polyimides or polyesterimides · CPC title
Compounds containing oxygen but no halogen atom · CPC title
- H01B7/02Primary
Disposition of insulation · CPC title
the liquid phase being organic · CPC title
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Frequently asked questions
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- What does patent US2017236618A1 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 Thu Aug 17 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).