Speaker box
US12052540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2022 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Nov 19, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a speaker box including a housing body with a containment space and a sounding unit. The housing body includes a sound aperture. The sounding unit includes a vibration system with a vibration diaphragm and a magnetic circuit system. The vibration diaphragm divides the containment space into front cavity and rear cavity. The speaker box includes a breathable separator located in the rear cavity to form a sound absorbing cavity. The lower housing includes a bottom wall and a side wall bent and extended from the bottom wall. The breathable separator includes a fixed part fixed to the upper housing, a breathable part having several air circulation holes, and a sealed part extending from the breathable part and sealing the through hole. The speaker box of the present invention effectively reduces the height of the product and reduces the cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.