Permanent magnet contra-rotating propulsion motor and aircraft

Abstract

The invention discloses a permanent magnet contra-rotating propulsion motor and an aircraft. The permanent magnet contra-rotating propulsion motor comprises two sets of stator and rotor assemblies installed in a motor shell, each stator and rotor assembly comprises a stator assembly and a rotor assembly which are matched with each other, and the two rotor assemblies are connected with the shaftless propellers respectively. The inner wall of each stator assembly and the outer wall of the corresponding rotor assembly form a certain included angle with the axis of the motor, the included angles are the same, and the two shaftless propellers are coaxially arranged. The permanent magnet contra-rotating propulsion motor provided by the invention has the advantages of simple and compact structure, low bearing friction loss, high propulsion efficiency, long endurance mileage and the like, is stable in operation performance and long in service life, is suitable for being used in different pressure environments, and has wide application prospects in various aircrafts.

Description

technical field [0001] The invention relates to a permanent magnet propulsion motor, in particular to a permanent magnet counter-rotation propulsion motor and an aircraft, and belongs to the technical field of propulsion motors. Background technique [0002] The electric motor has the characteristics of safety, reliability, environmental protection, good maintainability and low operating cost, and has a wide range of applications. However, as a power system, both the traditional piston engine and the turboprop engine are single-propeller systems using a single propeller, and there are many problems in actual use: First, the power plant generates a reverse torque on the body, which brings about a There are many inconveniences. In order to overcome the reverse torque, it is even necessary to carry out a series of asymmetric designs for the body. Second, the efficiency of the single-propeller power system is low, which directly affects the endurance. Third, the reliability of t...

AI Technical Summary

Problems solved by technology

However, as a power system, both the traditional piston engine and the turboprop engine use a single propeller system, and there are many problems in actual use: first, the power unit produces a reverse torque to the body, which brings Many inconveniences, in order to overcome the reverse torque, even a series of asymmetric designs on the airframe are required; second, the efficiency of the single propeller power system is low, which directly affects the endurance; third, the reliability of the single propeller is low, after the motor fails, Safety is difficult to guarantee; Fourth, the single propeller power system is noisy

[0003] The permanent magnet counter-rotating propulsion motor can solve the above disadvantages of the single propeller power system to a certain extent, but it will bring new problems. Complexity, and maintenance and repair costs during use

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