Rotating electrical machine, in particular alternator for motor vehicle
US6734587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2003 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Jan 14, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a rotary electric machine comprising a rear bearing (2), an arrangement (1) for rectifying the current produced by the machine, which comprises a number of positive diodes (8) supported by a heat dissipater in the overall form of a plate (9) and a number of negative diodes (10) supported by support means in the form of a plate advantageously forming part of the rear bearing, the plate (9) supporting the positive diodes (8) comprising a great many cooling ribs which have the shape of fins (18, 19) extending practically radially across the plate, while an opening (20) for the passage of cooling air is made between each pair of adjacent fins (18, 19), some fins (18) extending practically as far as the outer periphery of the support plate (9).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.