Linear vibration device
US8492938B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2011 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jan 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a linear vibration device. The linear vibration device includes a stator including magnets, a bracket, and a case having an inner space formed therein and coupled with the bracket; and a vibrator including coils facing the magnets, a weight body coupled with the coil, an FPC coupled with a top portion of the weight body, and an elastic member of which the one end is coupled with the case and the other end is coupled with the coil, the vibrator being accommodated in the case, wherein the magnets include a first magnet and a second magnet facing the first magnet, coupled with a top surface of the bracket, and including a magnetic fluid applied to a bottom portion and a side portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.