Aircraft, blade, propeller, propulsion assembly and movable platform

CN122094883APending Publication Date: 2026-05-26SZ DJI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SZ DJI TECH CO LTD
Filing Date
2024-08-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing mobile platforms with propellers face the problem of excessive aerodynamic noise. Traditional noise reduction designs reduce propeller speed, which leads to problems such as increased motor torque, reduced efficiency, and excessive temperature rise.

Method used

The blade tip is designed to gradually tilt or bend towards the pressure surface from the third to the fourth end, while the main body gradually moves away from the structural components from the first to the second end, in order to reduce or eliminate interference, lower noise, and maintain motor performance.

Benefits of technology

This effectively reduces noise, avoids increased motor torque and reduced efficiency, and improves the flight performance and safety of the aircraft.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122094883A_ABST
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Abstract

An aircraft (100), blades (31), a propeller (30), a propulsion device and a movable platform, the aircraft (100) comprises a body (10), a structural member (20) and the propeller (30), the structural member (20) and the propeller (30) are arranged on the body (10), the propeller (30) comprises the blades (31), and the structural member (20) faces a pressure surface (S1) of the blades (31). The paddle (31) comprises a paddle root part (311), a main body part (312) and a paddle tip part (313), the main body part (312) comprises a first end (A1) and a second end (A2), and the first end (A1) is connected with the paddle root part (311). The blade tip part (313) comprises a third end (A3) and a fourth end (A4), and the third end (A3) is connected with the second end (A2). The blade tip part (313) is gradually close to the structural part (20) in the direction from the third end (A3) to the fourth end (A4), and the main body part (312) is gradually away from the structural part (20) in the direction from the first end (A1) to the second end (A2).
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