Speaker box
US9838765B1 · kind B1 · utility
16Cited by
0References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2017 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Jan 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/029
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker box includes a housing with an accommodation space including a retaining wall for dividing the accommodation space into a front cavity and a rear cavity opposite to the front cavity; a speaker unit received in the front cavity of the accommodation space; sound-absorbing powder arranged in rear cavity of the housing; and a separation mesh injection-molded with the retaining wall. The retaining wall includes a through hole for communicating the front cavity with the rear cavity, the separation mesh covers the through hole for separating the sound-absorbing powder from the front cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.