Loudspeaker damper and loudspeaker
US6655495B2 · kind B2 · utility
7Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2002 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Oct 10, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A damper 3A is provided with an inner peripheral waveform portion 11 and an outer peripheral waveform portion 12. A flat portion 10 is provided between the inner peripheral waveform portion 11 and the outer peripheral waveform portion 12. When the damper is used for a loudspeaker, the flat portion 10 does not elastically deform in a radial direction R, so that linearity of the damper 3A in a vibrating direction Z is ensured by elastic deformation of the waveform portions. In addition, a rolling phenomenon of a voice coil bobbin and a diaphragm can be suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.