公开(公告)号：US20210024204A1

公开(公告)日：2021-01-28

申请号：US17035380

申请日：2020-09-28

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Peng CHEN ,  Jianda QIU ,  Qi LI

IPC: B64C27/32

Abstract: An unmanned aerial vehicle (UAV) including a fuselage frame and a propulsion system coupled to the fuselage frame. The propulsion system includes a first propulsion device and a second propulsion device. The first propulsion device includes a first rotor blade assembly and a first rotor mount assembly, and the second propulsion device includes a second rotor blade assembly and a second rotor mount assembly. The first rotor mount assembly is configured to not allow the second rotor blade assembly to be assembled to the first rotor mount assembly.

公开(公告)号：US20210078698A1

公开(公告)日：2021-03-18

申请号：US17105915

申请日：2020-11-27

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Yihan LIU ,  Peng CHEN ,  Tao DENG

IPC: B64C27/46 ,  B64C27/473 ,  B64D27/02 ,  F01D5/02 ,  F01D5/30

Abstract: A propeller assembly includes a first and a second propellers. The first propeller includes a first propeller blade including a first propeller root, a first propeller tip opposite to the first propeller root, a first propeller pressure surface, and a first propeller suction surface opposite to the first propeller pressure surface. The second propeller includes a second propeller blade including a second propeller root, a second propeller tip opposite to the second propeller root, a second propeller pressure surface, and a second propeller suction surface opposite to the second propeller pressure surface. The first propeller tip is configured to extend obliquely along a span direction of the first propeller blade toward a side where the first propeller suction surface is located. The second propeller tip is configured to extend obliquely along a span direction of the second propeller blade toward a side where the second propeller pressure surface is located.

公开(公告)号：US20210139132A1

公开(公告)日：2021-05-13

申请号：US17152770

申请日：2021-01-19

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Peng CHEN ,  Jianfang LI

IPC: B64C11/04 ,  B64C11/28 ,  B64C27/48 ,  B64C27/50

Abstract: The present disclosure provides a propeller, a power assembly and an aerial vehicle. The propeller includes a propeller hub and at least two propeller blades arranged at equal intervals along a periphery of the propeller hub. The propeller blades are rotatably connected to the propeller hub through a rotating shaft so as to fold the propeller blades toward an axis of rotation of the propeller hub, or to unfold the propeller blades away from the axis of rotation of the propeller hub. There is a preset angle between an axis of the rotating shaft and the axis of rotation. The propeller hub is in connection with a drive device to transmit power to drive the propeller hub to rotate around the axis of rotation.

公开(公告)号：US20200148343A1

公开(公告)日：2020-05-14

申请号：US16743815

申请日：2020-01-15

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Feng LIU ,  Shufeng ZHANG ,  Tao DENG ,  Peng CHEN

IPC: B64C27/473 ,  B64C27/46 ,  B64C27/467 ,  B64C27/50 ,  F01D5/02 ,  F01D5/30

Abstract: A propeller includes a blade. The blade includes a blade root, a blade tip disposed away from the blade root, a blade front surface, and a blade back surface. The blade also includes a front edge connecting a first side of each of the blade front surface and the blade back surface. The blade also includes a rear edge connecting a second side of each of the blade front surface and the blade back surface. The blade further includes a first suppression member formed by a portion of the front edge adjacent to the blade tip bending toward a first direction. The first direction is a direction from the front edge to the rear edge. The first suppression member is configured to suppress a spanwise air flow.