News

Magnet in the field of aviation to explain

2024-04-23

The magnetic properties of permanent magnets in permanent magnet motors directly affect the efficiency, safety and reliability of permanent magnet motors. If the motor is improperly designed or used, under the action of factors such as high temperature, chemical corrosion, mechanical vibration, and armature reaction caused by impact current, the permanent magnets in the motor are prone to irreversible loss of excitation, which will cause the motor performance to drop sharply, and may even cause the motor Stopped or burned. Because the aviation motor is faced with many harsh working conditions, such as mechanical overload caused by vibration and shock, current overload when starting or reversing, and complex atmospheric and temperature conditions, and at the same time, the aviation motor has high reliability Requirements, so the permanent magnet motor in order to obtain a wide range of applications in the aviation field, the first to solve the problem of loss of excitation of the permanent magnet motor. Therefore, it is necessary to analyze the causes of the demagnetization of the permanent magnets of the motor and find out the way to improve the anti-demagnetization ability of the motor.