Dual-rotor axial disk-type permanent magnet motor

Abstract

The invention provides a dual-rotor axial disk-type permanent magnet motor. A dual-motor and intermediate stator mode is adopted in structural layout, and magnetic flow is axial in direction; dual rotors output rotation speed and torque through a rotating shaft connected with the dual rotors, and permanent magnets arrayed in a trapezoid halbach form are arranged on inner sides of the rotors. The motor stator is designed in a non-yoke structure and adopts a multi-tooth combination and is fixed on a main case; the main case is in topology design, vent holes are arranged in the surface of the main case, and passive heat dissipation of the motor is facilitated; the dual-rotor axial disk-type permanent magnet motor has the advantages of small size, light weight and high power-to-weight ratio and is applicable to equipment of electric and hybrid cars, aircrafts and the like. The invention further relates to a non-rotor core structure design, and the power-to-weight ratio of the motor is further increased.

Description

technical field [0001] The invention belongs to the field of novel aviation motors, and in particular relates to an axial disc permanent magnet synchronous motor. Background technique [0002] Due to the massive development and use of fossil fuels such as gasoline and diesel, under the dual pressure of energy and environmental protection, traditional internal combustion engines, especially aviation internal combustion engines, have developed corresponding incentive policies due to their high carbon emissions and serious pollution. Actively promoting the development of the new energy industry, aviation motors are developing rapidly with their increasingly obvious advantages. [0003] At present, there are many types of motors on the market, and the products are mature, but most of these motors cannot meet the requirements of aerospace due to their large size and relatively low power weight. Among them, the asynchronous motor mainly has the following disadvantages: the drive ...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many types of motors on the market, and the products are mature, but most of these motors cannot meet the requirements of aerospace due to their large size and relatively low power weight.

Among them, the asynchronous motor mainly has the following disadvantages: the drive circuit is complex and the cost is high; compared with the permanent magnet motor, the efficiency and power density of the asynchronous motor are low; Poor; torque is small, often short-term overload load

In the application, the power factor lags behind, the speed regulation performance is slightly poor, and the power weight is relatively low. These reasons limit the use of asynchronous motors.

[0004] At present, the iron core of the motor on the market accounts for a lot of the weight of the whole motor, and the resulting energy iron loss is also very high

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