Micro planar speaker
US10433066B1 · kind B1 · utility
0Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2018 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Oct 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A micro speaker includes a planar diaphragm, spacers respectively disposed at one side surface of the planar diaphragm, an upper plate and a lower plate, one or more magnets and a circuit board. The planar diaphragm includes a vibrating diaphragm and a coil conductor. The coil conductor is stretched and bonded onto the vibrating diaphragm via an adhesive layer on the upper side surface of the planar diaphragm; the coil conductor is electrically connected to the circuit board. The speaker in this present invention can get a diameter of 15 mm or less, and a height is 5 mm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.