Electric motor comprising pressing cooling air conveyance and method for cooling components of the electric motor
US11441568B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2016 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Jul 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/33
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an electric motor comprising an electronics housing in which motor electronics are accommodated, a stator bush for accommodating a stator and which is axially adjacent to the electronics housing, and a cooling impeller which is axially adjacent to the stator bush and which can be driven via a rotor, wherein a fluidically connected axial through-channel is provided in the stator bush and in the electronics housing, through which channel a cooling air flow generated by the cooling impeller can be conveyed, and wherein the cooling impeller has a blade geometry such that, in normal operation of the electric motor, the cooling air flow is drawn in radially from outside at a peripheral radial air inlet of the cooling impeller and pressed through the through-channel in axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.