Electroacoustic transducer
US9503822B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2013 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Nov 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R7/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electroacoustic transducer comprises a diaphragm body part and a voice coil combined to one side of the diaphragm body part, wherein the diaphragm body part comprises non-conductive base material layers and a conductive metal layer; the metal layer is interposed between any two neighboring layers of the base material layers, and is provided with first conductive terminals conductively combined with the voice coil; each of the base material layers between the metal layer and the voice coil is provided with open holes which are formed by removal of material to allow the passage of the first conductive terminals; the central part of the diaphragm body part is combined with a reinforcing layer; and the reinforcing layer is combined to one side of the diaphragm body part away from the voice coil, and covers the regions where the first conductive terminals are located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.