Full-frequency band high quality speaker with a bar and sound tunnels
US12212946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | Apr 20, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A full-frequency band high quality speaker with a bar and sound tunnels includes a voice coil, magnet, diaphragm and magnetically conductive structure; the diaphragm is conical, a bridge-style bar is on the surface of at least one side of the diaphragm; the diaphragm includes at least two grooves, each horizontally radial; each groove crosses the bridge-type bar in the horizontal direction and the length direction of the groove is perpendicular to the bridge-type bar; the groove is concave on the surface of the diaphragm to form a sound tunnel. The diaphragm is changed to the current standard vibration mode, and the timbre of treble register is not bright and the timbre of bass register is not sonorous and mellow enough from the perspective of vibration, resonance and phonation. The practice proves that the improved scheme has outstanding substantive characteristics and remarkable technical progress, and has obtained obvious technical results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.