| 摘要 |
PURPOSE: A flat-type coreless vibrating motor is provided to increase vibration of the motor by placing a center of mass of a vibrator as far from a rotating axis as possible. CONSTITUTION: A flat-type coreless vibrating motor includes a coin-type PCB(200), coils(230,240), and a vibrator(250). The coin-type PCB(Printed Circuit Board) is rotatably coupled with a rotating axis. The vibrator includes at least one track holes(260) having predetermined depths on a predetermined portion thereon. The track holes are implemented in a longitudinal direction. An injection resin is filled and fixed in the track holes during an injection molding operation.
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