| 摘要 |
A flat type vibration motor is provided to generate a large vibration force by increasing a driving torque through two magnets. A bracket(111) and a case(115) are coupled each other. One end of a supporting shaft(120) is supported in the bracket. The other end of the supporting shaft is supported in one surface of the case. A rotor(140) is rotatably installed in the supporting shaft in order to generate vibration. The rotor has a weight(145). The weight comprises a fixing part(145a) and a first protrusion part(145b). The fixing part is parallel to a radial direction of the supporting shaft. The first protrusion part is protruded in one surface of the case from the fixing part. A first magnet(161) and a second magnet(165) have a ring shape. The first magnet and the second magnet are installed in the bracket and one surface of the case. The first magnet and the second magnet rotate the rotor.
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