Speaker box
US10368160B2 · kind B2 · utility
1Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2018 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Aug 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present application discloses a speaker box. The speaker box includes a lower cover; an upper cover engaging with the lower cover for forming an accommodating space; a speaker accommodated in the accommodating space, and including a diaphragm with a dome attached to the diaphragm; a front sound cavity formed by the diaphragm and the upper cover; and air adsorbent particles received in the front sound cavity. The dome forms at least one recess communicating with the front sound cavity, and the air adsorbent particles are received in the recesses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.