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|1. (WO2018139694) DRONE USING COAXIAL INVERTED ROTOR|
|Applicants:||LG ELECTRONICS INC.
INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
|Title:||DRONE USING COAXIAL INVERTED ROTOR|
A rotary wing drone according to one embodiment of the present invention comprises: a flight control unit for controlling the flight of the rotary wing drone; a main body including a first motor and a second motor; an upper shaft vertically inserted into the main body and rotating in a first direction around a first axis by means of the force of the first motor; a plurality of upper rotor blades connected to the upper shaft such that the plurality of upper rotor blades rotate in the first direction around the first axis at a fixed pitch angle; a lower shaft vertically inserted into the main body and rotating in a second direction opposite to the first direction around the first axis by means of the force of the second motor; a plurality of lower rotor blades and a swash plate connected to the lower shaft so as to rotate in the second direction around the first axis and having a variable pitch angle; a slope regulator for regulating the slope of the swash plate; a link part for connecting the swash plate to the plurality of lower rotor blades; and a pitch control unit positioned at the lower ends of the plurality of lower rotor blades.