Speaker cabinet with increased air circulation efficiency
US7006648B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 22, 2003 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Aug 2, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/288
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is to provide a speaker cabinet comprising a hollow case in which a top and a bottom thereof both are wavily tapered from a pair of opposite edges of a front opening to a rear thereof. By utilizing the wavy, rearward taper design of the top and the bottom, a ratio of an area of the opening to an area of the rear is increased. Thus, air inside the case will be compressed rearward when a diaphragm of a woofer vibrates. Next, the compressed air will quickly flow toward the rear along the wavy, rearward taper inner surfaces of the top and the bottom. As a result, air dynamic at the rear is higher and stronger low-frequency resonance of the cabinet can be generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.