| 摘要 |
A sound producing apparatus is provided to improve a low frequency reproduction by obtaining large sound generation area by using a magnet device with a simple structure. A sound producing apparatus includes a magnet device. The magnet device includes a magnet(341), a yoke(342), a plurality of connection parts(351), a plurality of through grooves(352), a voice coil(100), and a plurality of protrusions(103). The magnet(341) has a ring shape. The yoke(342) has a smaller outer diameter than an inner diameter of the magnet(341). The magnet(341) and the yoke(342) are arranged on the same axis. The magnet(341) is magnetized up and down. The yoke(342) is directly connected to the bottom of the magnet(341). The plurality of connection parts(351) connect the york(342) and the magnet(341). The plurality of through grooves(352) are formed between the connection parts(351). The plurality of protrusions(103) are formed on an end of the voice coil(100) and protruded through the through grooves(352). |
