Electric motor unit
US12101016B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 30, 2019 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Sep 1, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor unit includes: a case; a stator accommodated in the case; a rotor that is rotatably held inside the stator; a rotation shaft that is provided in the rotor and is rotatably supported by the case; a cooling device configured to inject a cooling liquid toward the stator; a gas passage that has a respiratory membrane that allows air to pass through and penetrates from an inner wall surface to an outer wall surface of the case; and a predetermined electrical component arranged between an injection port of the cooling device and an inner wall surface side opening of the gas passage. The gas passage is opened at the inner wall surface of a wall portion on one side of the case in an axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.