Speaker and electronic device
US11856384B2 · kind B2 · utility
0Cited by
0References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Jan 24, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker including a frame; a magnetic circuit system fixed to the frame, comprises a plurality of magnetic circuit devices connected to each with a magnetic gap; a vibration system driven by the magnetic to vibrator, comprises a diaphragm fixed to the frame and a plurality of voice coil assembly inserted into the magnetic gap drive the diaphragm vibrate jointly. the speaker can drive the diaphragm to vibrate and produce sound with a greater driving force, and the magnetic circuit system has a higher magnetic field. The efficiency makes the speaker have a better sound effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.