Electrical machine, preferably a rotary current generator with a rectifier component and with upper heat sink provided with axial cooling fins
US6285100A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1999 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Aug 9, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical machine is proposed, preferably a rotary current generator (10), with a rectifier component (26) at the rear end area of its end shield (11), in which dissipation of waste heat is to be improved. Positive and negative heat sinks (27, 28) with the positive and negative diodes (31, 32), respectively, are screwed to the end shield (12) so as to be sandwiched together with a printed circuit board (30) for the connection between diodes and winding connections (17a) with the inclusion of an insulating plate (29). The upper heat sink (27) has a plurality of cooling air openings (38) arranged next to one another at the inner circumferential area for a cooling air flow generated by the fan of the machine. In order to improve the dissipation of heat, axial cooling fins (39) are formed on at least at some of the cooling air openings (38) of the upper heat sink (27).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.