Stator assembly with teeth having different cross-sectional profiles with stem and head portions
US11309749B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2019 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator assembly includes a stator having a plurality of teeth which are distributed around a circumference of the stator and point toward a central axis of the stator. The teeth alternately have a first cross-sectional profile and a second cross-sectional profile, and a plurality of slots being formed between the teeth. A plurality of coils are disposed around the teeth having the first cross-sectional profile. The second cross-sectional profile has a parallel-sided stem portion and an adjoining tapered head portion. A height of the stem portion of the second cross-sectional profile is less than a height of a respective one of the coils that is disposed around an adjacent one of the teeth having the first cross-sectional profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.