Claw-pole rotor and production method therefor
US6833651B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2003 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Jun 16, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An alternator for motor vehicles has a stator and a claw-pole rotor that co-operates with the latter. The claw-poles of the rotor have claw-pole fingers which are uniformly distributed around the periphery, axially intermesh in alternate directions at a distance from one another and have a pole core and an excitation winding. Permanent magnets are arranged between the claw-pole fingers and are held in a retaining ring with a zigzag configuration. To mount the retaining ring in as simple a manner as possible between the claw-pole fingers, a longitudinal slit is provided on each longitudinal side of the claw-pole finger. The retaining ring engaged in said slit by one respective longitudinal side or its axial section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.