| 摘要 |
A flat type vibration motor is provided to reduce an amount of oil leaked from a bearing by preventing an electromagnetic force applied to a rotor. 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 bearing(130) is rotatably installed in the supporting shaft. A rotor(140) is integrally rotated with the bearing. The rotor has a coil(143). A first magnet(160) and a second magnet(180) have a ring shape. The first magnet is installed in the bracket, and is faced with the rotor. The first magnet rotates the rotor by an interaction with the coil. The second magnet prevents leakage of magnetic flux generated in the first magnet. The second magnet is installed in one surface of the case, and is faced with the first magnet.
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