The reason for the demagnetization of the DC brushless motor

One of the key indicators of the characteristics of the DC brushless motor is the heat resistance level. If it exceeds its high temperature resistance level, its magnetic flux density will drop sharply. The heat resistance level can be divided into: N series products, resistance above 80 degrees; H series products, resistance above 120 degrees; SH series products, resistance above 150 degrees.

1. The fan of the motor is abnormal, resulting in high temperature of the motor

2. The motor has no set temperature protection device

3. The working temperature is too high

4. The motor design plan is unscientific

How do manufacturers of brushless Torque AC Motors Suppliers prevent demagnetization?

Appropriate selection of the output power of the brushless DC motor Demagnetization is related to the selection of the output power of the motor. Proper selection of the output power of the brushless DC motor can prevent or slow down the demagnetization. The key reason for the demagnetization of the same motor is that the temperature is too high, and the load is the key reason for the high temperature. Therefore, a certain capacity should be reserved when selecting the output power of the motor. According to the specific conditions of the load, 20% or less is generally more suitable.