Sound-producing device and electronic terminal
US12149907B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2020 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a sound-producing device and an electronic terminal. The sound-producing device comprises: a voice coil, the voice coil including a bobbin and a voice coil body wound outside the bobbin; the voice coil is configured to be able to be input an electrical signal; a first damper group and a second damper group, each of the first damper group and the second damper group comprising a first connecting part connected with the voice coil, a second connecting part fixed to the sound-producing device and an elastic part connected between the first connecting part and the second connecting part; the first damper group is configured to be in electrical communication with the voice coil to input the electrical signal to the voice coil; the first damper group and the second damper group are fixed to the voice coil in parallel at different heights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.