Disk-type double-rotor counter-rotating motor and aircraft

Abstract

The invention discloses a disc-type double-rotor counter-rotating motor and an aircraft. The disc-type double-rotor counter-rotating motor includes a stator assembly and two identical rotor assemblies, and the two rotor assemblies are symmetrically arranged on both sides of the stator assembly. The stator assembly includes two stator windings, the two stator windings are symmetrically distributed on both sides of the stator assembly, and the phase arrangement of the two stator windings is opposite, when the two stator windings are energized, the corresponding two gas The armature magnetomotive force generated in the gap has the same rotation speed and opposite direction, so as to drive the two rotor assemblies to rotate in opposite directions at the same speed, and sensors are installed on the stator teeth on both sides of the stator assembly. The disc-type double-rotor counter-rotating motor provided by the invention has the advantages of light weight and high power density, can output two torques with opposite directions and equal amplitudes, and is easy to install, high in stability, and easy to control. It has good application prospects in the fields of robot propulsion and other fields.

Description

technical field [0001] The invention relates to a double-rotor motor, in particular to a disc-type double-rotor counter-rotating motor and an aircraft, and belongs to the field of mechatronics design. Background technique [0002] Aircraft often use contra-rotating propellers as propulsion devices. Compared with using one propeller, the contra-rotating propeller is more stable in operation, which effectively prevents the "rollover" phenomenon that is prone to occur during the driving of the aircraft. At the same time, the contra-rotating propeller makes full use of hydrodynamics, and the propulsion phase rate is higher. In engineering, a conventional motor is usually used with a planetary gear to realize the indirect drive of the counter-rotating propeller. Although the propulsion device using this scheme has a compact structure and a large mechanical transmission ratio, its mechanical loss is also large at the same time, and the propulsion efficiency is not high. [0003...

AI Technical Summary

Problems solved by technology

The stator and rotor speeds of this kind of motor are not equal, it is difficult to synchronize, and the motor is easily out of control

Although the radial flux double-rotor counter-rotating motor can realize the two rotors rotating in opposite directions at the same speed, the lengths of the two air gaps inside and outside the motor are not equal, the output efficiency of the outer rotor is low and the torque fluctuation is large, which affects The overall power density and performance of the motor

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