Thin speaker and method of manufacturing the speaker
US7184567B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2003 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Jul 27, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin speaker having a magnetic circuit (2) disposed at the front of a cone-like diaphragm, wherein an internal magnetic type magnetic circuit (2) and a vibration system are supported by a sufficiently strong frame formed of two pieces having an outline of generally disk-shape and partly overlapped concentrically with each other, the acoustic characteristics are prevented from being deteriorated by preventing support bodies (7, 7A) for the magnetic circuit (2) from covering the forward of the sound emitting face of the cone-like diaphragm (3), and speaker component parts are formed so as to be assembled by stacking on one jig (1) from one direction with a specified procedure, whereby an assemblability can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.