US 12,316,791 B2
Rotation shaft structure and electronic device
Changliang Liao, Dongguan (CN); Weifeng Wu, Dongguan (CN); Li Liao, Dongguan (CN); Kenji Nagai, Yokohama (JP); Ding Zhong, Dongguan (CN); Qiao Deng, Yokohama (JP); Tao Huang, Shenzhen (CN); Qiang Zhan, Shanghai (CN); Haiqiang Tian, Dongguan (CN); Yuehua Hu, Dongguan (CN); Feng Zhao, Dongguan (CN); Gang Wang, Shenzhen (CN); Bo Huang, Shanghai (CN); Zhixiao Xu, Shanghai (CN); and Shangyun Wang, Dongguan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jun. 18, 2024, as Appl. No. 18/747,242.
Application 18/747,242 is a continuation of application No. 17/837,965, filed on Jun. 10, 2022, granted, now 12,047,521.
Application 17/837,965 is a continuation of application No. PCT/CN2020/135961, filed on Dec. 11, 2020.
Claims priority of application No. 201911286336.8 (CN), filed on Dec. 13, 2019; application No. 202010059260.1 (CN), filed on Jan. 19, 2020; application No. 202010619631.7 (CN), filed on Jul. 1, 2020; application No. 202010651834.4 (CN), filed on Jul. 8, 2020; application No. 202010741274.1 (CN), filed on Jul. 29, 2020; application No. 202010741295.3 (CN), filed on Jul. 29, 2020; application No. 202011062457.7 (CN), filed on Sep. 30, 2020; and application No. 202011198925.3 (CN), filed on Oct. 31, 2020.
Prior Publication US 2024/0340365 A1, Oct. 10, 2024
Int. Cl. H04M 1/02 (2006.01); G06F 1/16 (2006.01)
CPC H04M 1/0216 (2013.01) [G06F 1/1616 (2013.01); G06F 1/1652 (2013.01); G06F 1/1681 (2013.01); H04M 1/0268 (2013.01); H04M 2201/38 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rotation shaft structure, comprising:
a main shaft assembly;
a first folding assembly comprising a first swing arm, a first driven arm, a first support plate, and a first housing mounting bracket, a first end of the first swing arm is rotationally connected to the main shaft assembly, a second end of the first swing arm is rotationally connected to the first housing mounting bracket, a first end of the first driven arm is rotationally connected to the main shaft assembly, and a second end of the first driven arm is slidably connected to the first housing mounting bracket, rotation axis centers of the first driven arm and the first swing arm on the main shaft assembly are parallel to each other and do not coincide with each other; the first support plate is rotationally connected to the first housing mounting bracket and is slidably connected to the first swing arm or the first driven arm; the first support plate comprises a first plate body and a first guide structure, the first plate body has a first surface and a second surface that are disposed opposite to each other, the first guide structure is disposed on the second surface of the first plate body, and the first guide structure is slidably connected to the first swing arm or the first driven arm; and
a second folding assembly comprising a second swing arm, a second driven arm, a second support plate, and a second housing mounting bracket, a first end of the second swing arm is rotationally connected to the main shaft assembly, a second end of the second swing arm is rotationally connected to the second housing mounting bracket, a first end of the second driven arm is rotationally connected to the main shaft assembly, and a second end of the second driven arm is slidably connected to the second housing mounting bracket, rotation axis centers of the second driven arm and the second swing arm on the main shaft assembly are parallel to each other and do not coincide with each other; the second support plate is rotationally connected to the second housing mounting bracket and is slidably connected to the second swing arm or the second driven arm; the second support plate comprises a second plate body and a second guide structure, the second plate body has a third surface and a fourth surface that are disposed opposite to each other, the second guide structure is disposed on the fourth surface of the second plate body, and the second guide structure is slidably connected to the second swing arm or the second driven arm, wherein the first folding assembly and the second folding assembly are disposed on two sides of the main shaft assembly;
when the rotation shaft structure is unfold, the first surface of the first plate body, the third surface of the second plate body, and the main shaft assembly are unfolded flat to form a support surface; and
when the rotation shaft structure is fold, the first support plate, the second support plate and the main shaft assembly enclose an accommodation space together, a distance between an end of the first support plate near the main shaft assembly and an end of the second support plate near the main shaft assembly is greater than a distance between an end of the first support plate away from the main shaft assembly and an end of the second support plate away from the main shaft assembly.