Rotating electrical machine with magnetic inserts
US5543676A · kind A · utility
53Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Mar 16, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/243
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment of the present invention, a rotor of a "claw pole" alternator includes first and second pole pieces with intermeshing fingers. Magnetic inserts are provided made preferably of permanent magnet material. Each insert extends under the end of a pole finger of the rotor and has two surfaces which face radially outward from the rotor. The resulting design provides improved power output and reduced acoustic noise when compared with conventional alternators, in a design which is durable and amenable to mass production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.