The invention provides two manned multi-rotor aircrafts and two unmanned remote-control multi-rotor aircrafts, multi-layer continuous airfoil propellers are adopted to replace a common blade type propeller to provide lift force in the vertical direction, and a spiral airfoil structure is utilized to cut and adapt to windward rapid laminar flow or crosswind laminar flow; the problems that when the common blade type propeller is adopted, windward or crosswind laminar flow directly generates airflow impact on the blades, shock wave tremor is generated at the tips of the blades, and consequently wind resistance is large, flying is unstable or hovering and wind blowing yawing are caused are solved. Besides, the problem that fingers are easily cut by the common blade type propeller is solved, the problem that the common blade type propeller is easily hooked when the common blade type propeller is adopted to fly to pass through obstacles such as branches and cables is solved, personal safety is protected, and flight safety is further improved; compared with a common blade type propeller unmanned aerial vehicle needing to be additionally provided with a blade protection ring, an unmanned aerial vehicle which adopts the multi-layer continuous airfoil propellers still has safety if the blade protection ring is not installed.
本发明提供两种有人驾驶的多旋翼飞行器和两种无人遥控的多旋翼飞行器,采用多层连续翼面螺旋桨替代一般叶式螺旋桨来提供垂直方向上的升力,并且利用其螺旋翼面结构来切割和适应迎风快速层流或横风层流,避免了采用一般叶式螺旋桨时迎风或横风层流直接对桨叶产生气流冲击和桨叶翼尖产生激波震颤,所带来的风阻较大、飞行不稳或悬停风吹偏航问题;此外,还避免了一般叶式螺旋桨容易砍击切割手指的问题,还避免了采用一般叶式螺旋桨飞行穿越树枝线缆等障碍物时容易钩挂的问题,有利于保护人身安全和进一步提高飞行安全性;且相比需要加装桨叶防护圈的一般叶式螺旋桨无人机,采用多层连续翼面螺旋桨后如果不安装桨叶防护圈也仍具备安全性。
Multi-rotor aircrafts
多旋翼飞行器
2022-01-04
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / G08C Übertragungssysteme für Messwerte, Regel-, Steuer- oder ähnliche Signale , TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS |
Support arm assembly for multi-rotor aircrafts, rack and aircraft
European Patent Office | 2015
|European Patent Office | 2017
European Patent Office | 2016
|