Voice coil motor

摘要

Disclosed is a voice coil motor, the motor including a mover having a bobbin equipped with a lens and a coil block secured to an outer circumference of the bobbin; a stator having a magnet that is disposed in such a way as to face the coil block; elastic members coupled to a lower end of the bobbin and connected to both ends of the coil block; a base supporting the elastic members and the stator; and a cover can covering the mover, the stator and the base, with an opening being formed in the cover can to expose the lens therethrough, wherein each of the elastic members includes a terminal portion that extends between the cover can and a side surface of the base, the terminal portion including a short-circuit prevention portion so as to inhibit a short-circuit between the terminal portion and the cover can.

主权项

1. A voice coil motor (VCM), comprising:
a bobbin configured to move in a vertical direction; a coil fixed to an outer circumference of the bobbin; a magnet facing the coil; two lower elastic members coupled to a lower portion of the bobbin and electrically connected to the coil and comprising a first lower elastic member and a second lower elastic member; a base arranged under the two lower elastic members; and a cover of metal material, the cover having a lateral plate and an upper plate formed with a first opening; wherein the first lower elastic member connects to a first terminal portion and the second lower elastic member connects to a second terminal portion, wherein the cover is disposed on the base and is overlapped with a portion of the first and second terminal portions in a horizontal direction, wherein two grooves are concavely formed at an outer lateral surface of the base, wherein the two grooves comprise a first groove and a second groove, wherein the first and second terminal portions are bonded to the first and second grooves, respectively, wherein each of the first and second terminal portions is horizontally distanced from an inner surface of the lateral plate of the cover, and wherein an insulation member is disposed between the lateral plate of the cover and a portion of at least one of the first and second terminal portions.