A full protection multi-rotor unmanned aerial vehicle propeller protection cover

By designing a fully protective cover for multi-rotor drone propellers, using a ring frame, top cover assembly, and outer protective net, the problem of all-round protection for large drone propellers was solved, achieving low-cost and efficient collision protection.

CN116119060BActive Publication Date: 2026-07-10SOUTHEAST UNIV
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Filing Date
2023-03-03
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing multi-rotor drone propeller guards cannot effectively protect large drone propellers, especially from foreign object impacts and obstructions, and the existing structures cannot achieve all-round protection.

Method used

A fully protective shield for multi-rotor UAV propellers was designed, featuring a ring-shaped frame, a bottom mounting bracket, and a top cover assembly. The main structure is made of carbon fiber composite material, and an outer protective net provides all-around protection. The top cover assembly ensures that the shield remains stationary when the propellers rotate, and the outer protective net can be replaced independently.

Benefits of technology

It achieves all-round protection for the blades of large multi-rotor UAVs, can block flying objects with a diameter of more than 30mm and collision protection with a kinetic energy of less than 8 joules, and has a simple structure, low power loss, is easy to manufacture and has a low cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116119060B_ABST
    Figure CN116119060B_ABST
Patent Text Reader

Abstract

The application discloses a full-protection multi-rotor unmanned aerial vehicle propeller protection cover which comprises a ring-shaped framework, a bottom mounting support, a top cover assembly, an outer layer protection net and the like structures, the ring-shaped framework comprises a main body ring and upper spokes, the bottom mounting support comprises a motor connecting piece and lower spokes, the inner ends of the lower spokes are uniformly connected to the outer edge of the motor connecting piece, the main body ring is connected to the outer ends of the lower spokes with the motor connecting piece as the center, a motor is arranged on the motor connecting piece, the inner ends of the upper spokes are uniformly connected to the motor through the top cover assembly, and the outer ends of the upper spokes are uniformly connected to the main body ring, the whole propeller protection framework is made of full carbon material, is light in weight, high in strength and simple in structure, effectively solves the problems that the propeller protection of a large multi-rotor unmanned aerial vehicle is too heavy and the power loss is large, and can avoid the impact of small-size flying objects in each direction on the propeller, and effectively improves the flight safety.
Need to check novelty before this filing date? Find Prior Art