Speaker voice coil construction
US4088847A · kind A · utility
16Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1976 |
| Grant date | May 9, 1978 |
| Priority date | — |
| Expiry date | Dec 6, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/046
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker comprising a voice coil assembly including a coil formed by pressure-winding an insulation-covered wire on a portion of the outer periphery of a coil bobbin disposed in the gap of a magnetic field, the beginning and the end of the coil being fixed to the coil bobbin by bonding material or adhesive tape, and a diaphragm coupled to the voice coil assembly, whereby the efficiency and performance of the speaker is enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.