The invention provides a coaxial double-propeller unmanned aerial vehicle which comprises an airframe body, shaft arms, motors and rotor wings. The coaxial double-propeller unmanned aerial vehicle is characterized in that all the shaft arms evenly distributed on the airframe body are each provided with two permanent magnet motors of different power and rotating speeds, wherein the rotating speed of the upper permanent magnet motor is 80%-90% that of the lower permanent magnet motor, and the power of the upper permanent magnet motor is 80%-90% that of the lower permanent magnet motor; rotating shafts of the two permanent magnet motors are provided with upper propellers and lower propellers; and the upper propellers and the lower propellers are the same in size and shape. According to the coaxial double-propeller unmanned aerial vehicle, two permanent magnet motors of different power and rotating speeds are vertically arranged on the same shaft arm, the power and the rotating speed of the upper motors are lower than those of the lower motors, energy is saved, and the loss generated due to the fact that the upper motors usually overheat is eliminated; the overlapping frequency of paddles is lowered, and flight stability is improved; and the lift force is increased by 10%.
Coaxial double-propeller unmanned aerial vehicle
2015-12-16
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
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