Driver assembly, camera module and electronic device having image-capturing function

A camera module, comprising:

• a lens group comprising:
• a lens barrel;
• and
• a camera lens received in the lens barrel, comprising:
• a fixed lens assembly fixed to the lens barrel;
• and
• a movable lens assembly slidably connected to the lens barrel;
• comprising:
• a hollow holding portion at least partially located in the lens barrel;
• and
• a lens received in the holding portion;
• a driving assembly configured to drive the movable lens assembly to move along an optical axis direction, comprising:
• a motor configured to provide a driving force;
• a transmission portion connected to an output terminal of the motor;
• an execution portion movably cooperating with the transmission portion;
• and
• at least one shape memory alloy wire connecting the movable lens assembly with the execution portion,
• wherein the movable lens assembly is capable of being slidably connected to the transmission portion and is spaced apart from the execution portion;
• the motor is capable of driving the transmission portion to lead the execution portion to move along the optical axis direction, in such a manner that the movable lens assembly is driven by the at least one shape memory alloy wire to move along the optical axis direction;
• and each of the at least one shape memory alloy wire is configured to drive the movable lens assembly to move along the optical axis direction relative to the execution portion under an external electrical signal;
• the holding portion of the movable lens assembly is at least partially located in the lens barrel and comprises an extending portion, an opening is provided on a side wall of the lens barrel and extends along the optical axis direction, the extending portion extends out of the lens barrel through the opening and is movable along the opening, and the at least one shape memory alloy wire is connected to the extending portion.