Linear vibration motor having a buffer member
US8575794B2 · kind B2 · utility
68Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | May 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear vibration motor includes: a top cover; a bracket coupled with the top cover to provide an internal space; a vibration unit having a mass body mounted at the internal space and linearly moving in a horizontal direction; an actuator having a magnet fixed to the mass body and a coil installed within a range of a magnetic field of the magnet and generating electromagnetic force to allow the vibration unit to move linearly in a horizontal direction; and a buffer member disposed in a space between the mass body and the bracket and limiting displacement of the vibration unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.