Electrical machine and controller and methods of assembling the same
US9819246B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2015 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jan 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/0014
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical machine includes a fan guard having a first air flow channel. A stator assembly is coupled to the fan guard and includes a stator yoke having a cylindrical outer surface and a stator pole shoe. The stator pole shoe includes a plurality of stator poles coupled to the stator yoke. The stator assembly includes a second air flow channel defined between the stator yoke and an adjacent pair of the stator poles. A rotor assembly is positioned inside the stator assembly. The rotor assembly includes a rotatable shaft and a rotor. The rotatable shaft defines a rotation axis. A control electronics board includes a plurality of heat making components and is enclosed in a housing having a vented base and a closure. The housing is coupled to the stator assembly opposite the fan guard. The vented base includes a plurality of vent openings opened toward the fan guard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.