Electric motor with outer radiator and two separate cooling circuits
US9768667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2016 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Feb 8, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor includes a frame defining an internal volume in which are housed a rotor and a stator; at least one cooling circuit, which includes a primary inlet and a primary outlet in fluidic communication with the outside of the frame; at least one cooling device outside the frame, which includes a secondary air inlet and a secondary air outlet, and a conduit; at least one secondary cooling circuit, separate from the primary circuit, crossing the rotor and in fluidic communication with the secondary inlet and the secondary outlet of the cooling device. The secondary cooling circuit is crossed by a channel of the primary cooling circuit supplying the stator with the gas fluid from the outside of the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.