Micro-speaker
US8855355B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 23, 2013 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Feb 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a micro-speaker. A micro-speaker includes a frame forming a receiving space, a vibrating unit, a magnetic circuit unit, a number of contacts, a front cover and a back cover. The contacts include a first contact and a second contact retained by the frame and partially exposed out of the frame, and a third contact disposed within the receiving space. The vibrating unit includes a diaphragm and a voice coil with a first terminal and a second terminal. The first terminal is electrically connected to the first contact, the second terminal is electrically connected to the third contact. An FPC is provided to electrically connect the third contact to the second contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.