Sound generator
US11750978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2021 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Jan 11, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2209/026
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a sound generator, including a bracket, a magnetic circuit system, a first vibration system, and a second vibration system. The bracket has a first opening and a second opening that face opposite directions. The magnetic circuit system is used for driving the first vibration system and the second vibration system to generate sound in different directions. The first vibration system includes a first voice coil, the second vibration system includes a second voice coil, and the magnetic circuit system includes a first magnet, a second magnet, and a third magnet. The first voice coil is sleeved on outer sides of the first magnet and the second magnet simultaneously, and the second voice coil is sleeved on outer sides of the second magnet and the third magnet simultaneously. In the present invention, the loudness of sound generated by the sound generator may be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.