Electric motor
US8796900B2 · kind B2 · utility
0Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2012 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Jan 19, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor has a stator, a rotor and brush gear. The rotor includes a shaft, a rotor core fixed to the shaft, a commutator fixed to the shaft, and rotor windings wound on the rotor core and electrically connected to the commutator. The brush gear includes at least two arcuate brushes for making sliding contact with the commutator. The commutator and brush gear are disposed within a space formed in the rotor core to minimize the axial length of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.