Sheet material for electrical insulation, prepreg and electrically insulated coil using the same
US5691058A · kind A · utility
6Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1995 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Jan 9, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/294
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrically insulated coil, characterized in that an electrical insulation layer wound around an electrical conductor is formed by laminating layers of glass flakes having a thickness of 0.2-1 .mu.m and a diameter of 40-250 .mu.m on a backing member of a sheet-like electrical insulation material and by impregnating with a semi-cured thermosetting resin. An electrically insulated coil is provided, having an excellent partial discharge resistance as well as having a high dielectric break down strength even when subjected to a large mechanical distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.