Rotary electric machine and manufacturing method thereof
US6762528B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2002 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Dec 2, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicular alternator includes a stator, a rotor, and a housing. The stator has a stator core with a plurality of slots, and a stator coil passing through the slots. The stator coil is constructed of a plurality of electric conductors. Each electric conductor has insert portions located in the slot and a connecting portion connecting the insert portions axially outside of the stator core. The connecting portion has a first curve portion and a second curve portion. The first curve portion is located adjacent to an outer diameter of the stator core and the second curve portion is located adjacent to an inner diameter of the stator core. The first curve portion has curvature larger than that of the second curve portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.