Commutating device for small-sized motor and manufacturing method therefor
US6933651B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2004 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Jun 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R43/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In the present invention, by selecting an optimum combination of plating layer materials or materials, not only the manufacturing cost of motor brush is reduced but also a plating layer having excellent characteristics is formed in a narrow width on the surface of brush base material so as to have a predetermined thickness. The present invention is formed by a brush sliding portion that slides on a motor commutator and a plate-shaped brush base material that is slender as a whole and supports the brush sliding portion. This brush sliding portion is formed by Pd plating portion formed over a predetermined length on a part in the lengthwise direction of the brush base material that supports the brush sliding portion. This Pd plating is applied on the brush base material via backing Ni plating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.