Patent ID: 8450886

Claim:
A linear vibrator comprising: a housing having an internal space formed therein; a magnetic field unit including a yoke disposed in the internal space and having a magnet and a magnet insertion part formed therein, and interacting with a coil to which power is applied to linearly move in the internal space, the magnet insertion part determining an insertion position of the magnet; and an elastic member disposed in a space between the housing and the magnetic field unit and elastically supporting linear movement of the magnetic field unit, wherein the yoke comprises a flat part having the magnet insertion part formed therein, wherein the magnet insertion part includes a dented part dented from the yoke to protrude from the yoke, wherein the dented part is formed such that an outer surface thereof is press-fitted into a dented part insertion part formed in the elastic member, and wherein one of the elastic member and the flat part around the dented part is provided with a protrusion part and the other is provided with a protrusion part receiving hole, and the protrusion part is fixedly coupled to the protrusion part receiving hole.