1results about How to "Increase impact area" patented technology

The utility model discloses a voice coil motor, carrier, which is provided with a first through hole capable of placing a lens, and the side wall of the carrier is fixed with a coil, a base is provided with a second through hole coaxial with the first through hole, a spring piece is arranged between the carrier and the base, and the two sides of the spring piece are fixed with the carrier and the base respectively. The voice coil motor can balance the moment of force by canceling the upper spring and adjusting the lower spring wire width, can perfectly realize the use of one lower spring to carry the carrier, balance the moment of force, produce the tensile force opposite to the magnetic force, realize the use of one spring to realize the AF focusing stroke requirement, thereby reduce the cost.