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2. 发明公开

EP2148524A1 ELECTROACOUSTIC TRANSDUCER 有权
标题翻译： ELEKTROAKUSTISCHER WANDLER
公开(公告)号：EP2148524A1
公开(公告)日：2010-01-27
申请号：EP09746409.3
申请日：2009-02-09
申请人： HOSIDEN CORPORATION
发明人： Kamimura, Tomohiko , Yuasa, Hideo , Ren, Jinlong , Motonaga, Hidenori , Fujita, Katsunari
IPC分类号： H04R9/02
CPC分类号： H04R9/025 , H04R9/06 , H04R31/00 , H04R2209/024 , H04R2400/11
摘要： A yoke-integral frame is formed by a simple pressing process, and the numbers of components and production steps of an electroacoustic transducing device are reduced, thereby improving the productivity.
In an electroacoustic transducing device having: a magnetic circuit 13 having a yoke, a magnet 11, and a pole piece 12; a vibration system 16 having a diaphragm 14 and a voice coil 15; and a frame 1 which holds the magnetic circuit 13 and the vibration system 16, the voice coil being placed in a magnetic gap 21, the frame 1 is formed by performing a pressing process on one sheet-like metal material into a bottomed tubular shape, and at least two places of the bottom plate 2 are cut and raised to form a bottomed frame-like yoke portion 4, thereby being formed into a yoke-integral type.
摘要翻译：通过简单的压制方法形成磁轭一体式框架，电声转换装置的部件数量和制造步骤减少，从而提高生产率。一种电声换能装置，具有：具有磁轭的磁路13，磁铁11和极片12; 具有隔膜14和音圈15的振动系统16; 以及保持磁路13和振动系统16的框架1，将音圈放置在磁隙21中，框架1通过对一个片状金属材料进行压制而成为有底的筒状，并且底板2的至少两个位置被切割和升高以形成有底的框架状磁轭部分4，从而形成为磁轭一体型。

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