Multi-function speaker
US10674278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2019 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Aug 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a multi-function speaker, which includes a frame having a housing space, a magnetic circuit system and a vibration system accommodated in the housing space, an elastic body configured to suspend the magnetic circuit system in the housing space of the frame. The elastic body fixed to the frame includes two elastic pieces having the same structure. The magnetic circuit system comprises a lower plate, a primary magnet, a secondary magnet and an upper plate disposed on the secondary magnet. The upper plate includes a protrusion, the elastic piece includes a first fixed portion fixedly connected to the first side wall, a second fixed portion fixedly connected to the protrusion, and an elastic portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.