Patent ID: 9660509
Date: 2017-05-23
CPC Classifications: H02K

Claim:
1. A linear vibration actuator comprising: a case comprising an opened one side and an inner space formed therein; a magnet extending vertically down from an inner side of an upper portion of the case; a cover member coupled with the opened one side of the case to shield the inner space of the case; a vibration plate disposed to be vertically vibrated within the inner space of the case and above the cover member; a coil fixedly positioned on a lower surface of the vibration plate to face the magnet and generating a magnetic field by being applied with power from the outside; and a plurality of weight bodies fixedly coupled with both ends of the vibration plate, wherein the vibration plate comprises a narrow width piece and two wide width pieces, the two wide width pieces being symmetrically disposed on both sides of the narrow width piece, and the narrow width piece serving as a bridge between the two wide width pieces to connect the two wide width pieces to each other.