Motor stator core with skewed slots and production process therefor
US7345395B2 · kind B2 · utility
6Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2005 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Aug 5, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2201/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a motor stator, teeth radially project from an annular stator core, and a plurality of slots formed between adjacent teeth are skewed. Phase windings alternately pass through slots having different skew directions, wherein the length of bridging portions, which do not contribute to generation of torque, is short and the length of the portions which are located in the slots, and which contribute to the generation of torque, is long. Further, the phase windings are bent at an obtuse angle at opposite ends of the bridging portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.