Polyphase stator for internally ventilated rotating electrical machine, and rotating electrical machine comprising such stator
US8946963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 4, 2008 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Apr 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polyphase stator for an internally ventilated rotating electrical machine comprises a body (14) provided with slots and carrying a coil (12) having at least one winding per phase. A plurality of pairs of lateral branches are mounted in a slot of the body (14). A plurality of connecting heads (50 to 55) extend outside the body (14) so as to form a first lead-out (42) and interconnect each pair of lateral branches. A plurality of coupling feet (150 to 155) are offset circumferentially with respect to the plurality of connecting heads and extend outside the body (14) so as to form a second lead-out (43) and interconnect each pair of lateral branches. One of the pluralities has a generally pointed shape and has an axial length of between 15 and 20 mm. The stator is used with an alternator or alternator-stator for a motor vehicle. An internally ventilated electrical machine is equipped with the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.