Rotary electric machine
US11018550B2 · kind B2 · utility
0Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2019 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Jun 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2203/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a rotary electric machine that decreases the rigidity of a frame into which a stator core is press-fitted and is also able to maintain the circularity of the frame. The rotary electric machine includes a rotatably held rotor, a stator having a stator core on which a coil is wound and which is disposed so as to oppose the rotor, and an annular frame holding the stator core. The frame has a tubular drum portion holding the stator core and a plurality of flange portions, and a plurality of grooves are formed on an end portion of the drum portion in an axial direction of the drum portion by cutting the drum portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.