An unmanned aerial vehicle according to the present invention may comprise: a rotor-blade for providing thrust according to generation of main stream; and a safety guard disposed to surround the rotor-blade. The safety guard may comprise: a guide member which is disposed coaxially with the rotor-blade while having a gap between the guard member and the end of the rotor-blade, so as to stabilize, when the rotor-blade rotates, a flow field suctioned by a negative pressure, and stably boost a discharge flow when the pressure is changed to a positive pressure; and a diffuser which is disposed coaxially with and radially spaced apart from the guide member, and generates a secondary flow toward the main stream to increase a flow rate.
根据本发明的无人驾驶飞行器可包括:转子叶片,用于根据主流的产生提供推力;以及安全防护装置,设置为围绕所述转子叶片。所述安全防护装置可包括:引导构件,与所述转子叶片同轴地设置同时在所述引导构件与所述转子叶片的端部之间具有间隙,以在所述转子叶片旋转时稳定由负压抽吸的流场,并且在压力改变为正压时稳定地推动排放流;以及扩压器,与所述引导构件同轴地设置并且与所述引导构件径向间隔开,并且产生朝向所述主流的二次流动以增大流率。
UNMANNED AERIAL VEHICLE COMPRISING SAFETY GUARD
包含安全防护装置的无人驾驶飞行器
2020-12-01
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |