| 摘要 |
PURPOSE: A voice coil motor is provided to prevent the combination of a bobbin by forming a rotation prevention unit elastically supporting a bobbin and forming a protrusion in a case. CONSTITUTION: In a voice coil motor, a movable element(100) comprises a bobbin and a coil block in the outer circumference of the bobbin. A stator(200) comprises a magnet and a yoke receiving the magnet. A case(300) comprises a lower case(320) and an upper case(310) combined with the lower case. A first elastic member(410) is combined with the top of the bobbin. A second elastic member(420) is combined with the bottom of the bobbin. A rotation prevent unit is formed by removing a part of a corner. A protrusion is contacted with the cross-section of the rotation prevent unit. |
