The invention discloses a propeller blade, and relates to the technical field of aviation aerodynamic design, the propeller blade comprises a blade main body, the blade main body is a sweepback blade, one end, close to the rotation center of the propeller blade, of the blade main body is a blade root, and the other end of the blade main body is a blade tip; wherein a plurality of airfoils are sequentially arranged on the paddle main body along the direction from the blade root to the blade tip, and torsion angles are formed among the airfoils. The invention further discloses an unmanned aerial vehicle propeller which comprises a plurality of propeller blades, and all the propeller blades are evenly distributed around the rotation center along the circumference. The invention further discloses an unmanned aerial vehicle which comprises the unmanned aerial vehicle propeller. The noise of the propeller can be reduced, and the pulling force and the aerodynamic efficiency of the propeller are improved.
本发明公开了一种螺旋桨桨叶,涉及航空空气动力设计技术领域,包括桨叶主体,所述桨叶主体为后掠桨叶,所述桨叶主体上靠近螺旋桨桨叶的旋转中心的一端为叶根,另一端为叶尖;其中,所述桨叶主体上沿所述叶根至所述叶尖的方向依次设置有多个翼型,且多个所述翼型之间具有扭转角度。本发明还公开一种无人机螺旋桨,包括多个如上所述的螺旋桨桨叶,全部所述螺旋桨桨叶绕旋转中心沿圆周均布。本发明还公开一种无人机,包括如上所述的无人机螺旋桨。本发明能够降低螺旋桨噪声,并提高螺旋桨本身的拉力和气动效率。
Propeller blade, unmanned aerial vehicle propeller and unmanned aerial vehicle
螺旋桨桨叶、无人机螺旋桨及无人机
02.02.2024
Patent
Elektronische Ressource
Chinesisch
Europäisches Patentamt | 2023
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