US 12,407,236 B2
Motor, camera module, and mobile terminal
Ran Duan, Shenzhen (CN); Yingyong He, Dongguan (CN); Haibo Wan, Dongguan (CN); and Dengfeng Li, Dongguan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 17/772,735
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed Oct. 15, 2020, PCT No. PCT/CN2020/121301
§ 371(c)(1), (2) Date Apr. 28, 2022,
PCT Pub. No. WO2021/082944, PCT Pub. Date May 6, 2021.
Claims priority of application No. 201911032725.8 (CN), filed on Oct. 28, 2019.
Prior Publication US 2022/0345021 A1, Oct. 27, 2022
Int. Cl. H02K 41/035 (2006.01); G03B 5/00 (2021.01); G03B 13/36 (2021.01); H04N 23/68 (2023.01)
CPC H02K 41/0356 (2013.01) [G03B 5/00 (2013.01); G03B 13/36 (2013.01); H04N 23/687 (2023.01); G03B 2205/0076 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A motor comprising:
a base comprising:
a first limiting portion comprising a limiting groove; and
a baseplate from which the first limiting portion protrudes, wherein the baseplate comprises a first accommodating hole;
a support base comprising:
a second limiting portion; and
a connecting portion spaced apart from the second limiting portion;
an eccentricity-prevention elastic structure connected between the connecting portion and the first limiting portion, wherein the connecting portion comprises an abutting bump, and wherein the eccentricity-prevention elastic structure comprises a slot in which the abutting bump is accommodated;
a shape memory alloy actuator connected between the first limiting portion and the connecting portion and configured to drive the support base to move relative to the base; and
an eccentricity-prevention magnetic assembly comprising:
a first eccentricity-prevention member accommodated in the first accommodating hole; and
a second eccentricity-prevention member disposed on the second limiting portion, wherein the second limiting portion comprises a second accommodating hole in which the second eccentricity-prevention member is accommodated, and wherein the second limiting portion is accommodated in the limiting groove,
wherein, when the motor is in a powered-off state, a first central axis of the base is coincident with a second central axis of the support base under an action of magnetostatic forces between the first eccentricity-prevention member and the second eccentricity-prevention member.