| 摘要 |
According to the present invention, a vibration motor comprises: a case; a mass body vertically reciprocating in the case; an operational unit to vertically move the mass body; a spring comprising a fixing unit fixed on the case, a vertical moving unit positioned relatively inwardly with respect to the fixing unit and fixed on the mass body, and a connection unit connecting the fixing unit and the vertical moving unit and forming the vertical moving unit and a plurality of inner connection areas; and a damper which is disposed in the case, comes in contact with at least a portion of the vertical moving unit within a moving range of the spring to absorb an impact by a movement of the spring, and has a plurality of extension parts extended radially outwards to correspond to the inner connection areas to cover the inner connection areas formed by the vertical moving unit and the connection unit. |
