How much temperature should the magnet used in brushless motor withstand?
Brush free motor, adopt electronic commutation, coil does not move, pole rotation. Brush less motor is to use a set of electronic equipment, through Hall elements, to sense the position of permanent magnet pole. According to this perception, the electronic circuit is used to switch the direction of current in the coil timely to ensure that the correct direction of magnetic force is generated to drive the motor.
Today’s main topic is about the temperature resistance of brushless motor magnets. Xiaobian also met many friends and asked, “how much temperature resistance do brushless motor magnets need?”?
Answer: the magnet used in the brushless motor is generally 120 ° to 150 ° temperature resistant. NdFeB can be classified as m (80-100%), H (100-120%), sh (120-150%), uh (150-180%) and eh (180-200 ℃) according to temperature.
How about the surface treatment of brushless motor magnet?
The magnets of brushless motor are usually plated with nickel, and some NdFeB tile magnets are passivated and Phosphated.