PIEZOELECTRIC MOTOR, CAMERA MODULE, AND ELECTRONIC DEVICE

This application provides a piezoelectric motor, a camera module, and an electronic device. The piezoelectric motor includes a base, a mobile carrier, and a drive mechanism. The base has a mounting groove. The mobile carrier is disposed in the mounting groove and is circumferentially fastened to the base, and the mobile carrier is slidably connected to the base in an axial direction of the first through hole. The drive mechanism includes a friction piece, a drive unit, and an elastic connecting piece, and the friction piece is disposed on a peripheral surface of the mobile carrier. The drive unit includes a connection assembly and a piezoelectric oscillator connected to the connection assembly, where the connection assembly is connected to the base, the piezoelectric oscillator is provided with a driving part, and when the piezoelectric oscillator moves, the driving part can move back and forth in the axial direction of the first through hole. The elastic connecting piece can provide pre-pressure that enables the driving part to press against the friction piece, so that when the driving part vibrates, the driving part drives, by using the friction piece, the mobile carrier to move back and forth. According to the piezoelectric motor, an auto focus stroke, focusing precision, and a focusing speed of the camera module can be improved.