Patent ID: 6963651
Filing Date: 2005-11-08
Classification: H04R

Abstract:
1. An improved single magnetic circuit dual output speaker structure, comprising: a support retainer, further comprising an expanded opening at its front end, a bridge disposed above said expanded opening, a magnetic circuit wound and fixed inwardly in the middle of the bridge, a vibrating space disposed on each of both sides of said magnetic circuit; a first voice coil, disposed in said vibrating space on the top of said magnetic circuit; a second voice coil, disposed in said vibrating space on the bottom of said magnetic circuit; a first diaphragm, disposed on said expanded opening of said support retainer and having its internal diameter stuck with said first voice coil; a second diaphragm, disposed on said expanded opening of said support retainer and having its internal diameter stuck with said second voice coil; and a damper, disposed at the back of the support retainer and stuck with said first voice coil, such that said magnetic circuit being mounted at the front of said support retainer by said bridge to provide the dual outputs of high and low pitches by a single body structure, and the bridge being used to facilitate the grip for its holding during assembling and maintenance, wherein said support retainer is a two-piece member having a circular cover at its front end, and a trumpet-shaped base at its rear end, and a small circular cover is disposed in the middle of said bridge of said circular cover to pair with said magnetic circuit.