Commutator motor
US6236137A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Aug 6, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R39/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A commutator motor comprises a yoke, a magnetic field portion secured to the inner wall of the yoke, a shaft disposed within the yoke so as to be able to rotate freely, an armature secured to the shaft having windings constructed by winding wire by a lap-winding method into slots formed on the outer circumferential surface of a core, a commutator including a resin portion and a plurality of segments held on an outer circumferential portion of the insulating resin portion with the spaces between adjacent segments being held by the insulating resin portion, a plurality of brushes contacting the surface of the commutator, and terminals electrically connecting segments which are to have the same electric potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.