Sound-producing device
US11979729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2020 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | May 12, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R31/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a sound-producing device including a voice coil, comprising a bobbin and a voice coil body wound outside the bobbin; and a damper having a first connecting part and a second connecting part; wherein the first connecting part is fixedly connected to the voice coil, and the second connecting part is fixed on the sound-producing device; there is provided a planar elastic member between the first connecting part and the second connecting part, the planar elastic member is bent and extends from the first connecting part to the second connecting part; the damper is made of conductive material, and is configured to establish electrical communication with the voice coil; the sound-producing device has a height in a vibration direction thereof ranging from 5 mm to 200 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.