| 摘要 |
A speaker is provided to improve the durability of products by forming a coupling protrusion and a coupling groove on a yoke and a magnet respectively. A speaker includes housing, a diaphragm(5), a yoke(20), and a coupling unit. The housing has a center magnet(13) formed on a center, and a ring magnet which is formed on a circumference. The diaphragm is connected to a voice coil(7) which is between the center magnet and the ring magnet to cover an opened plane of the housing. The yoke shields the other plane of the opened plane of the housing. The coupling unit is formed on an opposite plane of the center magnet and the yoke which are inserted into each other. The coupling unit includes a coupling protrusion(21) and a coupling groove(14). The coupling protrusion is protrudedly formed on a center of the yoke. The coupling groove is formed on a center of the opposite plane of the center magnet having an insertion shape of the coupling protrusion. |
