Speaker box
US10820078B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jun 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The speaker box provided by the present disclosure includes a housing with an accommodation space and a speaker in the accommodation space. The speaker includes a diaphragm for radiating sound. The housing includes a ring-shaped step for fixing the speaker. The step further forms a fastening slot for fixing the speaker. The stop further includes a number of recesses extending from a surface toward the fastening slot along a direction away from the fastening slot. BY virtue of the recesses, without changing the vibration space, the acoustic capacitor of the front cavity is increased, and the harmonic peak is lowered. Acoustic performance is accordingly improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.