Stator with phase shift
US12170460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2022 |
| Grant date | Dec 17, 2024 |
| Priority date | — |
| Expiry date | Jun 17, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator for an electric machine comprises a stator core and a winding positioned on the stator core. The stator core includes a plurality of teeth defining a plurality of slots. The winding is comprised of a plurality of segmented conductors connected together to provide a plurality of parallel paths per phase for the winding, each conductor comprising (i) an end loop provided on a crown end of the stator core, (ii) two legs extending through the slots, and (iii) two leg ends extending out of the slots on a connection end of the stator core, each leg end having a twist portion. The legs of the conductors are arranged in layers in the slots, wherein the layers include a total number of layers (L), L being greater than five and L/2 being an odd whole number. Each leg end extending from each of the layers has a common twist associated with the layer from which said leg extends. The common twist associated with at least half of the layers is a first twist, and the common twist associated with at least one of the layers is a second twist that is different from the first twist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.