The invention provides a ducted thruster and an unmanned aerial vehicle, the ducted thruster comprises a ducted body and a propeller, the ducted body is assembled on the unmanned aerial vehicle and is provided with a ducted cavity penetrating through the upper surface and the lower surface, the propeller is assembled and contained in the ducted cavity, and the propeller rotates to drive airflow to move in the ducted cavity so as to generate thrust; the propeller comprises a propeller hub and a plurality of blades, and the roots of the blades are connected with the propeller hub; wherein the inner wall of the duct cavity is provided with a circle of receding groove in the circumferential direction, the receding groove is formed in the rotating track of the outer edge of the paddle, and the outer edge of the paddle extends into the receding groove to rotate. According to the ducted propeller, the receding groove is formed in the inner wall of the duct cavity, so that the distance between the blades and the duct is equal to zero, the efficiency of the duct is close to the theoretical limit, and the propelling efficiency of the ducted propeller is greatly improved.

    本发明提供一种涵道推进器及无人机,涵道推进器包括涵道本体和螺旋桨,所述涵道本体装配于无人机上且具有贯通上表面和下表面的涵道腔,所述螺旋桨装配且收容于涵道腔内,螺旋桨旋转带动气流在涵道腔内运动从而产生推力;所述螺旋桨包括桨毂和多个桨叶,多个桨叶的根部与桨毂相连;其中,所述涵道腔的内壁沿周向设有一圈避空槽,所述避空槽设置在桨叶外沿的旋转轨迹上,且所述桨叶的外沿伸入所述避空槽旋转运动。本申请通过在涵道腔的内壁开设一圈避空槽,使桨叶与涵道的距离等于零,从而使得涵道的效率逼近理论极限,大大提高了涵道推进器的推进效率。


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    Title :

    Ducted propeller and unmanned aerial vehicle


    Additional title:

    一种涵道推进器及无人机


    Contributors:
    ZHANG KAIFAN (author) / LING JILIN (author)

    Publication date :

    2023-04-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64U



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