公开(公告)号：US20220345021A1

公开(公告)日：2022-10-27

申请号：US17772735

申请日：2020-10-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ran Duan ,  Yingyong He ,  Haibo Wan ,  Dengfeng Li

IPC: H02K41/035 ,  G03B13/36 ,  G03B5/00

Abstract: Disclosed are a motor (20, 40, 50, 60, 70, 80), a camera module (100), and a mobile terminal (200). A motor (20, 40, 50, 60, 70, 80) includes a base (21, 41, 51, 61, 71, 81), a support base (23, 43, 53, 63, 73, 83), and a shape memory alloy actuator (25). The shape memory alloy actuator (25) is fixedly connected between the base (21, 41, 51, 61, 71, 81) and the support base (23, 43, 53, 63, 73, 83), and the shape memory alloy actuator (25) is configured to drive the support base (23, 43, 53, 63, 73, 83) to move relative to the base (21, 41, 51, 61, 71, 81). The motor (20) further includes an eccentricity-prevention magnetic assembly (27, 47, 57), the eccentricity-prevention magnetic assembly (27, 47, 57) includes a first eccentricity-prevention member (271, 471, 571, 771, 871) and a second eccentricity-prevention member (273, 473, 573, 773, 873), the first eccentricity-prevention member (271, 471, 571, 771, 871) is disposed on the base (21, 41, 51, 61, 71, 81), the second eccentricity-prevention member (273, 473, 573, 773, 873) is disposed on the support base (23, 43, 53, 63, 73, 83), and when the motor is in a powered-off state, a first central axis of the base (21, 41, 51, 61, 71, 81) coincides with a second central axis of the support base (23, 43, 53, 63, 73, 83) under the action of magnetostatic forces between the first eccentricity-prevention member (271, 471, 571, 771, 871) and the second eccentricity-prevention member (273, 473, 573, 773, 873), to resolve the problem of eccentricity of the motor (20, 40, 50, 60, 70, 80).

公开(公告)号：US20240098370A1

公开(公告)日：2024-03-21

申请号：US18263275

申请日：2021-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dengfeng Li ,  Zhongcheng You ,  Haibo Wan ,  Gang Wang

IPC: H04N23/68 ,  H04N23/55 ,  H04N23/57 ,  H04N23/67 ,  H04N23/695

CPC classification number: H04N23/687 ,  H04N23/55 ,  H04N23/57 ,  H04N23/67 ,  H04N23/695

Abstract: A pan-tilt-zoom device includes a housing, a carrier, an image sensor, and a shape memory alloy (SMA) motor. An accommodating cavity is formed in the housing, and a first opening in communication with the accommodating cavity is provided on the housing. The carrier is located in the accommodating cavity, the carrier has a lens mounting hole, and an opening at one end of the lens mounting hole faces the first opening. The image sensor is located in the accommodating cavity and is disposed on a side that is of the carrier and that is away from the first opening, and a photosensitive surface of the image sensor faces an opening at the other end of the lens mounting hole. The SMA motor is configured to drive the carrier to tilt in the accommodating cavity along with the image sensor in any direction around, to implement optical image stabilization.

公开(公告)号：US20240061317A1

公开(公告)日：2024-02-22

申请号：US18270608

申请日：2021-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhongcheng You ,  Dengfeng Li ,  Haibo Wan ,  Gang Wang ,  Shixin Qin ,  Xiaohan Liu

IPC: G03B5/00 ,  G03B13/36 ,  G02B27/64

CPC classification number: G03B5/00 ,  G03B13/36 ,  G02B27/646 ,  G03B2205/0076

Abstract: This application provides a camera module and an electronic device, and relates to the field of electronic device technologies. The camera module includes an optical camera lens, a variable aperture, and an SMA motor. The variable aperture has an aperture hole whose size is adjustable. The SMA motor includes a first carrier, a base, and an SMA drive assembly. The optical camera lens is fastened to the first carrier. The SMA drive assembly is connected between the first carrier and the base. The SMA drive assembly is configured to drive the first carrier, the optical camera lens, and the variable aperture to move together relative to the base, so as to implement automatic focusing and/or optical image stabilization.

公开(公告)号：US20220252896A1

公开(公告)日：2022-08-11

申请号：US17612311

申请日：2020-05-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ran Duan ,  Haibo Wan ,  Qian Mei ,  Dalin Lv ,  Dengfeng Li

IPC: G02B27/64 ,  H04N5/232

Abstract: An elastomer includes an elastomer body and at least one elastomer cantilever. The elastomer cantilever is coupled to the elastomer body and extends along an outer edge of the elastomer body, the at least one elastomer cantilever is coupled to the fastener at a predetermined position of an extending part, and the at least one elastomer cantilever is axisymmetric or 90° rotationally symmetric.