Speaker including damper having deformation prevention member
US9992576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2015 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Aug 7, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker includes: a diaphragm; and a damper configured to adjust vibration of the diaphragm and including a first and second metal plates having polarities that are different from each other and symmetrical with each other, wherein the damper further includes first and second deformation prevention members disposed on bottom surfaces of the first and second metal plates, respectively, and wherein first and second deformation prevention members protrude downward and extend along a major-axis direction of the diaphragm, and the first and second deformation members are configured to prevent deformation of diaphragm caused by a vertical load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.