| 摘要 |
PURPOSE: A sub-miniature speaker is provided to prevent a partial vibration phenomenon generated from a diaphragm by connecting a voice coil with a printed circuit board or a terminal without passing the diaphragm. CONSTITUTION: A sub-miniature speaker is formed with a yoke(1), a magnet(2) for generating vibration, a magnet plate(3) for holding a magnetic force of the magnet(2), a center cap(4), a diaphragm(5), a voice coil(6) adhered on a back side of the diaphragm(5), a frame(7), and a couple of terminal(8). A conductive line groove(9) is formed on a main wall of the center cap(4). A conductive line(10) is used for connecting a lower end of the voice coil(6) with a printed circuit board or a terminal(8) through the conductive line groove(9). A partial vibration phenomenon is not generated from the diaphragm(5) since the conductive line(10) does not pass through the diaphragm(5).
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