| 摘要 |
PURPOSE: A multi-functional actuator is provided to prevent deterioration of reliability of an actuator of a mobile communication terminal and reduce vibration by preventing distortion of the plate spring. CONSTITUTION: A multi-functional actuator comprises a case(108) having an internal space and a groove formed at the inner surface of the case; a vibrating plate(101) an outer end of which is fixed to the top of the case; a voice coil(102) fixed to the lower end of the vibrating plate; a magnet(104) magnetized in a vertical direction; an upper yoke(103) and a lower yoke(105) attached to the magnet, and which form a magnetic field; a weight(106) for constituting a vibrating body; and plate springs(107,109) fixed in the case; and a vibration generating coil(110) arranged in the case, and which generates vibration by using the magnetic flux formed in the magnetic field.
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