Electric motor having stator with laminations configured to form distinct cooling channels
US10923972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2018 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | May 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor with a stator that is formed of a plurality of laminations. Each of the laminations has a radially inner lamination edge, which borders a rotor aperture configured to receive a rotor therein, and a radially outer lamination edge. Each of the laminations has a plurality of cooling apertures formed there through. The cooling apertures formed in a given one of the laminations are disposed radially between the radially outer lamination edge and the radially inner lamination edge. Each of the laminations is sealingly coupled to at least one other lamination. Each cooling aperture in a lamination forms part of a distinct cooling channel that extends along an axial length of the stator. At least a portion of the cooling apertures in each of the cooling channels are staggered circumferentially about a motor axis of the electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.