Voice coil motor for driving liquid lens and lens group thereof

The present invention relates to a lens driving device and more particularly relates to a voice coil motor for driving a liquid lens and a lens group thereof. The voice coil motor for driving the liquid lens comprises a seat body, a carrier and a driving device. The seat body has a first receiving cavity and a second receiving cavity which are distributed along an optical axis and are used for fixing a first lens and the liquid lens. The carrier is set in the first receiving cavity, the carrier is fixedly provided with a transmission component whose pressing portion is fixedly disposed on a side of the liquid lens adjacent to the first lens. The driving device is set in the first receiving cavity and comprises a mover and a stator which is magnetically induced with the mover and drives themover to move up and down along the optical axis, the stator is fixedly set on the seat body, the mover is fixedly disposed with the carrier, and the transmission component is fixed on the carrier tomove up and down along th