Micro-speaker
US8891808B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jan 28, 2013 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Jan 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a micro-speaker. The micro-speaker includes a frame, a magnetic circuit unit assembled with the frame, a diaphragm extending along a longitudinal direction, a coil, an elastic member and an FPC. The diaphragm includes a top plate and a periphery portion surrounding the top plate. The top plate includes a supporting portion extending from the top plate towards the base wall of the frame and disposed at a periphery portion of the top plate in the longitudinal direction. The elastic member includes an elastic part, a first end connecting to the supporting portion of the diaphragm and a second end connecting to the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.