Commutator apparatus for rotary electric machine
US4331897A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1980 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | Apr 3, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K13/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A commutator apparatus for rotary electric machines comprises a plurality of commutator segments mounted side by side on a rotary shaft through an insulating ring along the periphery thereof, an armature winding wound on a rotor core and including a plurality of coil ends projected axially from the rotor core, and a plurality of risers made of a conductor, one end of each thereof being connected to one axial end of the corresponding commutator segments, the other end of the riser being securely connected to one end of the corresponding armature coil. Each pair of adjacent risers are bound by an insulating binder to reduce the space therebetween, thus forming a substantially delta-shaped space defined by the adjacent risers on each side of said binder. The vibrations of the risers are thus absorbed and the vibratory stress of the risers is reduced, thus improving the mechanical strength and reliability of the commutator apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.