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发明授权
CN1722913B 扬声器及移动终端设备 失效 - 权利终止

扬声器及移动终端设备
摘要：
一种扬声器，包括：第一磁铁；被设置成围绕所述第一磁铁的第二磁铁；用于连接所述第一磁铁和第二磁铁的轭；第一声线圈；第二声线圈；连接至所述第一声线圈的第一振动膜；相对于所述第一磁铁与所述第一振动膜相对地设置且连接至所述第二声线圈的第二振动膜；设置在所述第一振动膜和第一磁铁之间的第一磁板；和设置在所述第二振动膜和第二磁铁之间的第二磁板，所述第一声线圈设置在所述第一磁板和所述轭之间的第一磁隙中，及所述第二声线圈被设置在所述第二磁板和所述轭之间的第二磁隙中；其中：所述扬声器进一步包括一个第一声管，用于传输由所述第一振动膜生成的声音。
摘要（英）：

A speaker includes a first magnet; a second magnet provided so as to surround the first magnet; a yoke for connecting the first magnet and the second magnet; a first voice coil; a second voice coil; a first diaphragm connected to the first voice coil; a second diaphragm oppositely provided to the first diaphragm with respect to the first magnet and connected to the second voice coil; a first magnetic plate provided between the first diaphragm and the first magnet; and a second magnetic plate provided between the second diaphragm and the first magnet. The first voice coil is provided in a first magnetic gap between the first magnetic plate and the yoke. The second voice coil is provided in a second magnetic gap between the second magnetic plate and the yoke. Further the speaker includes the first voice pipe which is used to transmit voice that caused by the first diaphragm.

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