Bar-type vibration motor
US7173355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Jan 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bar-type vibration motor has a stator unit including a body and a magnet attached in the body; a rotor unit including a rotary shaft having one end fixed to an eccentric weight and the other end fixed to a stationary member, a portion of the rotary shall adjacent to the eccentric weight being rotatably supported by the body like a cantilever, a commutator having several segments attached on one side of the stationary member, and an armature fixed to the stationary member spaced apart from the magnet, and electrically connected with the commutator; and a power supply unit including a fixing cap faxed to the body and a brush mounted on the fixing cap to supply voltage to the armature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.