Sound vibration actuator
US10893348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2019 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Jul 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound vibration actuator includes: a bracket and a casing for forming an internal space; a coil part coupled to the bracket in the internal space; a magnet part disposed around the coil part; an elastic member whose one surface coupled to the magnet part; a substrate fixed to the bracket and exposed outward from the internal space; and a substrate seating part disposed on the outer peripheral surface of the casing, wherein the substrate is disposed on top of the substrate seating part. The sound vibration actuator reduces the entire thickness thereof, while constantly maintaining an amount of vibration and generate vibrations in various frequency bands because the coil and the magnet are not fixed in the process where the vibrations are generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.