Motor
US11894750B2 · kind B2 · utility
0Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2020 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Oct 31, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/193
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a motor comprising: a motor housing; a stator which is provided in the motor housing and has a coil; a rotor installed in the stator to be rotatable about a rotary shaft; and a spray hole which is formed in the circumferential surface of the rotor by passing through the circumferential surface in a radial direction and which sprays a cooling fluid in the motor housing onto the coil according to the rotation of the rotor. Therefore, cooling by oil convection can be accelerated while minimizing resistance due to the oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.