VOICE COIL MOTOR, CAMERA MODULE AND PORTABLE ELECTRONIC DEVICE HAVING SAME

摘要

A voice coil motor includes a shell and a driving module in the shell. The shell includes a top plate. The driving module includes many magnets attached on the shell and defining a first receiving cavity, a movable unit movably received in the first receiving cavity, a bottom base, and a guiding post. The movable unit includes a movable barrel for receiving a lens module and a coil on the movable barrel. A central axis of the movable barrel is coaxial with an optical axis of the lens module. The movable barrel includes a first receiving portion. A central axis of the first receiving portion is parallel with the optical axis. The bottom base includes a second receiving portion. One end of the guiding post is received in the first receiving portion, and the other end of the guiding post is received in the second receiving portion.