Stator heat transfer feature for a dynamoelectric machine
US10621541B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2018 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Jul 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/193
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dynamoelectric machine includes a shaft, a rotor radially outward from the shaft with the rotor and shaft arranged to rotate in unison, a stator radially outward from the rotor with the stator being stationary relative to the rotor and shaft, and a heat transfer feature adjacent to and radially outward from the stator. The heat transfer feature includes a base encasing the stator, the base having a first end, a second end, and an axial middle; a first set of fins extending radially outward from the base adjacent the first end and the second end; and a second set of fins extending radially outward from the axial middle of the base with the second set of fins each having a smaller surface area and being closer to one another than the first set of fins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.