US 12,110,097 B2
Folding propeller, power component and unmanned aerial vehicle
Hailang Zhang, Guangdong (CN); Wei Sun, Guangdong (CN); and Dongdong Luo, Guangdong (CN)
Assigned to AUTEL ROBOTICS CO., LTD., Guangdong (CN)
Filed by AUTEL ROBOTICS CO., LTD., Guangdong (CN)
Filed on Jun. 19, 2020, as Appl. No. 16/906,561.
Application 16/906,561 is a continuation of application No. PCT/CN2018/104149, filed on Sep. 5, 2018.
Claims priority of application No. 201711377345.9 (CN), filed on Dec. 19, 2017.
Prior Publication US 2020/0317325 A1, Oct. 8, 2020
Int. Cl. B64C 11/04 (2006.01); B64C 11/22 (2006.01); B64C 11/28 (2006.01); B64C 27/50 (2006.01); B64U 30/20 (2023.01)
CPC B64C 11/04 (2013.01) [B64C 11/22 (2013.01); B64C 11/28 (2013.01); B64C 27/50 (2013.01); B64U 30/20 (2023.01)] 14 Claims
OG exemplary drawing
 
1. A folding propeller, comprising a hub, at least two blades and at least two connecting pieces, the hub being configured to mount the folding propeller to a driving device;
wherein the hub comprises a first surface and a second surface disposed oppositely, the first surface facing the driving device, and the second surface facing away from the driving device;
each of the at least two connecting pieces comprises a first abutting portion, a second abutting portion and a connecting portion connecting the first abutting portion and the second abutting portion; each of the at least two blades is mounted on the second surface by a respective one of the at least two connecting pieces, and each of the at least two blades is capable of rotating relative to the hub;
each of the at least two blades is fixedly connected to the respective one of the at least two connecting pieces by injection molding, and the hub is pivoted to the at least two connecting pieces, allowing the at least two blades to rotate relative to the hub; or the hub is fixedly connected to the at least two connecting pieces by injection molding, and each of the at least two blades is pivoted to the respective one of the at least two connecting pieces, allowing the at least two blades to rotate relative to the hub;
the hub comprises a main body portion and at least two overlapping portions connected to the main body portion, and the main body portion and the at least two overlapping portions each comprise two surfaces disposed oppositely. one surfa e of the main body portion being connected to one surface of each of the at least two overlapping portions to form the first surface, and the other surface of the main body portion being connected to the other surface of each of the at least two overlapping portions to form the second surface;
each of the at least two overlapping portions is pivoted to a respective one of the at least two blades by the respective one of the at least two connecting pieces;
each of the at least two blades comprises a pivoting portion, and each pivoting portion is overlapped on a respective one of the at least two overlapping portions and pivoted to the pect one f the at least two overlapping portions by the respective one of the wo connecting pieces;
a through hole is formed in each of the at least two overlapping portions;
a mounting hole is formed in each of the at least two pivoting portions;
each connecting piece passes through a corresponding one mounting hole and a corresponding one through hole to mount each of the at least two blades to the respective one of the at least two overlapping portions;
a surface of the first abutting portion facing the second abutting portion abuts against the first surface;
a surface of the second abutting portion facing the first abutting portion abuts against a side surface of tl respective one of the at least two blades facing away from the at least two overlapping portions; and
the connecting portion passes through the corresponding one mounting hole and the corresponding one through hole.