A method of installing and driving an integrated duct

By integrating the stator and rotor inside the duct housing, eliminating the drive shaft, and integrating the cooling fan blades and oil supply components, the transmission loss and heat dissipation difficulties of existing ducted fans are solved, achieving efficient power transmission and lubrication replenishment, and improving the overall performance and lifespan of the UAV.

CN122276137APending Publication Date: 2026-06-26中科骊久(济南)机器人有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中科骊久(济南)机器人有限公司
Filing Date
2026-06-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing ducted fans suffer from problems such as high transmission losses due to external motor placement, aerodynamic shape damage, large size and weight, difficulty in heat dissipation, insufficient lubrication, and lubricant leakage, which affect the power efficiency, aerodynamic performance, and service life of UAVs.

Method used

The drive unit adopts an integrated duct design, which integrates the stator and rotor inside the duct housing, eliminating the drive shaft and integrating the cooling fan blades and oil supply components. The radial and axial positioning of the stator is achieved through the guide components, and the installation is simplified by using insert plates and tenon and mortise structures. The upper and lower frames are combined to form the stator installation space, enabling real-time replenishment and guidance of lubricating oil.

Benefits of technology

It improves the power efficiency and endurance of drones, reduces flight drag, extends motor lifespan, simplifies assembly processes, and enhances system stability and aerodynamic efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an integrated drive duct and its installation method, belonging to the field of unmanned aerial vehicle (UAV) technology. It includes a shell with an installation space in the middle of the inner wall, where a drive assembly is fixed via connecting components. The stator of the drive assembly is rotatably connected to a rotor, and the rotor's inner side is directly connected to a rotor blade. The rotor is connected to the shell via upper and lower annular guide rails. It also includes a heat dissipation assembly and a circumferential oil supply assembly that rotate synchronously with the rotor, and an oil-blocking arc plate on the outer side of the lower guide rail. The installation method includes component prefabrication, inverted pre-assembly of the upper frame, stator and rotor fixing, pre-assembly positioning and installation, lower frame installation, upper and lower frame assembly, skin application and sealing, and overall aircraft debugging. This invention features a compact structure, simple assembly, and improved power efficiency and aerodynamic performance.
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