Stator structure for rotary electric machine
US6653758B2 · kind B2 · utility
33Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2002 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Jul 24, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/128
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator structure is provided with a stator core having a plurality of cooling passages or slots and an annular resin layer formed on an inner peripheral surface of the stator core that defines a rotor receiving opening. The stator core has a plurality of protrusions disposed on the inner peripheral surface of the stator core to control the depth of the annular resin layer formed on the inner peripheral surface of the stator core. The protrusions have radial thicknesses that are substantially equal to the radial thickness of the annular resin layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.