Speaker
US11638097B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2021 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Dec 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2209/022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses a speaker including a frame with two open ends, a vibration system sealing one open end of the frame, a magnetic circuit system, and an air-permeable mesh. The magnetic circuit system includes a yoke sealing another open end of the frame, a first magnet, a second magnet arranged at two opposite sides of the first magnet, a through hole penetrating the yoke and arranged at another two opposite sides of the first magnet, and an extension wall bending and extending from a side of the through hole close to the first magnet in a direction close to the vibration system. The air-permeable mesh is attached to the yoke and covers the through hole. Compared with the related art, the speaker disclosed by the present disclosure has a better acoustic performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.