公开(公告)号：US20230296963A1

公开(公告)日：2023-09-21

申请号：US18041346

申请日：2021-08-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dengfeng Li ,  Yingyong He ,  Xinxiu Bian ,  Zhaoyuan Ding

IPC: G03B5/04 ,  G02B7/28 ,  G03B13/36 ,  H02N2/02 ,  H02N2/06

CPC classification number: G03B5/04 ,  G02B7/28 ,  G03B13/36 ,  H02N2/026 ,  H02N2/067 ,  G03B2205/0015 ,  G03B2205/0061

Abstract: An ultrasonic piezoelectric motor includes a frame, a carrier, and a Z-direction piezoelectric driver. The carrier is disposed on an inner side of the frame and moveable in a Z direction relative to the frame, the carrier is configured to receive a camera lens, and the Z direction is parallel to an optical axis of the camera lens. A Z-direction piezoelectric driver is located between the frame and the carrier. The ultrasonic piezoelectric motor periodically abuts against the carrier using the Z-direction piezoelectric driver and drives the carrier to move in the Z direction to focus a camera module.