Novel ducted propeller device and achieving method thereof

Abstract

The invention discloses a novel ducted propeller device and an achieving method thereof. The device comprises a hollow cylindrical motor stator; a plurality of coils are evenly wound on the outer wall of the motor stator, and the inner wall of the motor stator is fixedly connected with an outer ring of each bearing; the motor rotor is composed of two mutually-nested cylindrical structures and an annular structure, the cylindrical structure inside the motor rotor penetrates through the center of each bearing and is connected with an inner ring of each bearing, the cylindrical structure outside the motor rotor is arranged on the outer face of the motor stator in a sleeving mode, and the inner wall of the cylindrical structure outside the motor rotor is inlaid with a magnetic sheet; the motor stator, the motor rotor and the bearings are each of a symmetrical structure, and the symmetry axes of the motor stator, the motor rotor and the bearing are overlapped; the motor stator is connected with a motor driving control module through a guide line, and blade tips at the two ends of a propeller are fixedly connected with the inner wall of the cylindrical structure inside the motor rotor; and the motor driving control module galvanizes the coils on the motor stator through the guide line, the coils generate a magnetic yield and drive the motor rotor to rotate, and the motor rotor drives the propeller to rotate. The novel ducted propeller device and the achieving method thereof contribute to improve efficiency of the propeller, noise of the propeller is reduced, the diameter of a motor is reduced, and the applicability of the motor is improved.

Description

technical field [0001] The invention relates to the technical field of propellers, in particular to a novel ducted propeller device and a realization method thereof. Background technique [0002] The main resistances in the propeller movement include air friction resistance, pressure difference resistance, induced resistance and interference resistance. Due to the high-speed circular motion of the blade, the speed at the tip of the blade is the highest, the induced resistance is relatively large, and the impact on the external airflow causes large noise, which is the main reason for the low power efficiency of the free propeller. The traditional free propeller usually adopts a cantilever beam structure, and the blade tip is easily deformed under the aerodynamic action, which leads to further deterioration of efficiency. SUMMARY OF THE INVENTION [0003] In order to solve the above problems, the purpose of the present invention is to provide a novel ducted propeller device...

AI Technical Summary

Problems solved by technology

Due to the high-speed circular motion of the blade, the speed at the blade tip is the highest, the induced resistance is relatively large, and the impact on the external airflow causes large noise, which is the main reason for the low power efficiency of the free propeller

Traditional free propellers usually adopt a cantilever beam structure, which is easily deformed at the tip of the blade under aerodynamic action, resulting in further deterioration of efficiency. This is one of the bottlenecks that limit the high-speed motion of the propeller, and is also the key to the speed limit of propeller aircraft and helicopters

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