Combined armature and structurally supportive commutator for electric motors
US6075300A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1998 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Jul 8, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49011
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A combined armature and commutator assembly for an electric motor is disclosed wherein an armature core is formed of a plurality of laminate plate members defining a central opening and having armature windings wound around the armature core. A disc-shaped commutator is provided and adapted for contact by electrically conductive brushes of the motor for conducting electrical current to the armature windings. The commutator is positioned within the generally central opening of the armature and is attached to the armature core by an interference fit relation to rotatability support the armature core on a rotor shaft of the electric motor thereby transmitting all torque directly from the armature core to the commutator and thereby to the rotor shaft. The combined armature and commutator may be incorporated into a single speed or a multiple speed motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.