US 12,256,033 B2
Synchronization mechanism and foldable terminal
Zhenbiao Fu, Shenzhen (CN); Yaolei Zhang, Shenzhen (CN); Haifei Li, Shenzhen (CN); Mingqian Gao, Shenzhen (CN); Bin Yan, Shenzhen (CN); and Guotong Zhou, Shenzhen (CN)
Assigned to Honor Device Co., Ltd., Shenzhen (CN)
Appl. No. 17/793,135
Filed by Honor Device Co., Ltd., Shenzhen (CN)
PCT Filed Jan. 29, 2022, PCT No. PCT/CN2022/075014
§ 371(c)(1), (2) Date Jul. 15, 2022,
PCT Pub. No. WO2022/183880, PCT Pub. Date Sep. 9, 2022.
Claims priority of application No. 202110227044.8 (CN), filed on Mar. 1, 2021.
Prior Publication US 2024/0179229 A1, May 30, 2024
Int. Cl. H04M 1/02 (2006.01)
CPC H04M 1/0268 (2013.01) [H04M 1/022 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A synchronization mechanism, comprising:
a base;
a worm gear;
a first worm;
a second worm;
a first rotating component; and
a second rotating component,
wherein the worm gear, the first worm, and the second worm are rotatably connected to the base, and the first worm and the second worm are parallel and are both meshed with the worm gear;
wherein the first rotating component is fixedly connected to the first worm, and the second rotating component is fixedly connected to the second worm;
wherein the worm gear, the first worm, and the second worm are configured to enable the first rotating component and the second rotating component to rotate synchronously relative to the base;
wherein spiral angles of the worm gear, the first worm, and the second worm are greater than a first angle threshold and less than a second angle threshold, to enable the first rotating component and the second rotating component to rotate synchronously relative to the base regardless of whether the synchronization mechanism is in a first working condition, a second working condition, or a third working condition;
wherein the first working condition is a working condition in which the first rotating component and the second rotating component are simultaneously rotated by a driving force, the second working condition is a working condition in which the base is not fixed, one of the first rotating component and the second rotating component is fixed, and the other is rotated by a driving force, and the third working condition is a working condition in which the base is fixed, and any one of the first rotating component or the second rotating component is rotated by a driving force; and
wherein the first angle threshold is 8.63°, and the second angle threshold is 78.67°.