| 摘要 |
<p>The present invention aims to provide a structure for preventing detachment of side magnets in a three-magnet type microspeaker. According to an aspect of the present invention, there is provided a three-magnet type microspeaker, including: a frame; a yoke coupled to the frame to form a bottom surface; a center magnet secured to the top of the yoke; a pair of side magnets secured to the top of the yoke and disposed at both sides of the center magnet; a center top plate attached to the top of the center magnet; side top plates attached to the top of the side magnets; a voice coil having a bottom end disposed in the gap between the center magnet and the side magnet and in the gap between the center magnet and a bending part, the voice coil vibrating due to a mutual electromagnetic force; and a diaphragm vibrating due to the voice coil, wherein the yoke includes a bending part, which is bent upwardly at a certain distance from the end of the center magnet, on the side where the side magnet is not disposed, the bending part being wider than the voice coil.</p> |
