US 11,937,391 B2
Rotary shaft apparatus and foldable electronic device
Shenghan Gong, Beijing (CN); Xuehu Zhang, Beijing (CN); and Bowen Shan, Beijing (CN)
Assigned to BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Filed by Beijing Xiaomi Mobile Software Co., Ltd., Beijing (CN)
Filed on Jul. 26, 2022, as Appl. No. 17/815,081.
Claims priority of application No. 202210344923.3 (CN), filed on Mar. 31, 2022.
Prior Publication US 2023/0320006 A1, Oct. 5, 2023
Int. Cl. H05K 5/02 (2006.01); G06F 1/16 (2006.01)
CPC H05K 5/0226 (2013.01) [G06F 1/1616 (2013.01)] 20 Claims
OG exemplary drawing
 
20. A foldable electronic device, comprising:
a rotary shaft apparatus, comprising:
a base plate, comprising a first supporting plane,
a rotary shaft assembly comprising a first transmission assembly, a second transmission assembly and a first supporting member; wherein the first transmission assembly is rotatably connected to the base plate around a first axial direction; wherein the first supporting member is rotatably connected to the first transmission assembly around a second axial direction parallel to the first axial direction, and is movably connected to the second transmission assembly, and the first supporting member comprises a second supporting plane; and wherein the second transmission assembly is rotatably connected to the base plate around a third axial direction parallel to the first axial direction; and
a second supporting member, movably arranged on the base plate in a direction perpendicular to the first axial, and comprises a third supporting plane;
a middle frame housing, the first transmission assembly being connected to the middle frame housing, and
a flexible display screen, being connected to the middle frame housing;
wherein the rotary shaft apparatus has an unfolded state and a folded state;
wherein, in the unfolded state, the second supporting member is at a first position, and the third supporting plane and the second supporting plane are on the same plane;
wherein, in the folded state, the second supporting member is at a second position, a first preset included angle is between the second supporting plane and the first supporting plane, and the first supporting member and the second supporting member define a screen-accommodating space; and
wherein, when the rotary shaft apparatus is switched from the unfolded state to the folded state, the second supporting member move from the first position to the second position closer to the base plate in the direction perpendicular to the first axial direction.