Patent ID: 8537226
Filing Date: 2013-09-17
Classification: G02B,H04N

Abstract:
1. A voice coil motor, comprising: an outer shell comprising a plurality of sidewalls connected to each other end-to-end, a top plate connected to the sidewalls and defining a through hole in the center thereof, and a plurality of protrusions depending from the top plate and into the through hole, the sidewalls and the top plate cooperatively forming a space; a moveable frame moveably received in the space; a coil of wire wrapped around the moveable frame and received in the space; a plurality of magnetic members received in the space and each attached to a corner formed by two intersecting inner surfaces of two adjacent sidewalls, the magnetic members and the coil of wire configured for cooperating to drive the movable frame to move in the outer shell; a first elastic member attached to the moveable frame and received in the space, the first elastic member configured for providing an elastic restoring force, the protrusions extending through the first elastic member; and a spacer sandwiched between the first elastic member and the top plate, the magnetic members urging the first elastic member against the spacer to retain the first elastic member.