Insulating method for rotary electric machine
US4616407A · kind A · utility
47Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1983 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | Dec 20, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for insulating a coil of a rotary electric machine resulting in improved insulating properties at critical coil ends. A mica sheet or mica tape is wound around a part of each coil to be inserted into a slot cut in an iron core of the rotary electric machine to thus form a first insulating layer. The coils thus treated are inserted into respective slots and are connected together and to external terminals as required. Each coil end is then covered in its entirety with a thermosetting resin. The thermosetting resin is hardened by heating to form a second insulating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.