Stator structure
US11289976B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2020 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Jul 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/1838
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a first aspect, a stator structure for an electrical machine is provided. The stator structure comprises a circumferential support having an external rim to support a plurality of electrical windings. The circumferential support comprises an air entrance, an air distribution channel and a plurality of axial air openings. The air entrance provides a passage between the air distribution channel and an outside of the stator structure. The air distribution channel extends through a portion of the circumferential support to circumferentially distribute an air flow from the air entrance. The plurality of axial air openings provides a passage between the air distribution channel and an outer side of the external rim to guide an air flow from the air distribution channel to the outer side of the external side. The plurality of axial air openings comprises an aperture, wherein the apertures are sized and spaced such that the air flow is substantially uniform along the circumference of the outer side of the external rim. In a further aspect, an electrical generator comprising a stator structure according to any of the examples herein described is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.