Multilayer insulated electric wire and transformer using the same
US8946557B2 · kind B2 · utility
6Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2012 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Mar 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/2823
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multilayer insulated electric wire having: a conductor; at least three extruded insulating layers covering the conductor; wherein an outermost layer (A) of the insulating layers is composed of an extruded coating layer containing a polyamide resin and the film thickness is 25 μm or less, wherein an inner layer (B) of the extruded insulating layers is composed of an extruded coating layer containing a crystalline resin having a melting point of 225° C. or more or an amorphous resin having a glass transition temperature of 200° C. or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.