Bidirectional speaker using bar magnets
US10743097B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2019 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Oct 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A speaker comprising a frame; a first magnetic body and a second magnetic body each coupled to the frame and spaced apart by a predetermined distance from each other to form a gap, wherein the first magnetic body and the second magnetic body are arranged such that opposite polarities of the first magnetic body and the second magnetic body are provided at adjacent lateral positions; a first diaphragm; a second diaphragm; and a first voice coil plate having at least one voice coil wound on and coupled to the voice coil plate, the first voice coil plate being located in the gap between the opposite polarities of the first magnetic body and the second magnetic body, wherein the first voice coil plate is coupled to the first diaphragm and second diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.