How To Keep The Motor From Losing Magnetism?

Micro permanent magnet DC motors are widely used, and various electric products will need permanent magnet motors to drive. Micro permanent magnet DC motors may lose their magnetism after being used for a long time, resulting in failure of micro DC motors. How to keep micro permanent magnet DC motors from What about loss of magnetism?

In fact, the method to keep the miniature permanent magnet DC motor from losing its magnetism is very simple

1. Check whether the micro permanent magnet DC motor has vibration and noise: if the micro motor has abnormal vibration, the concentricity of the connected load will be abnormal, then the load will increase, overload operation, and the motor temperature will rise, making the motor Loss of magnetism or burnt motor.

2. It is only necessary to keep the permanent magnet DC motor running at the rated current: the micro DC motor will cause overload operation due to too much load, or the voltage is lower than the starting voltage and the locked rotor will cause the current to increase and the temperature to rise, and the micro motor will run at high temperature. Running under the condition will cause the insulation aging, and the permanent magnet of the motor will be demagnetized in this state for a long time. During the operation of the micro-motor, it is necessary to pay attention to whether the transmission device is flexible, or the shaft is stuck, so as to avoid the stalled rotor temperature being too high and causing the motor to lose its magnetism. Checking the temperature of the micromotor requires looking for abnormal changes in the temperature of the bearing, stator, housing, etc.

3. It is best not to have dust, water stains or other sundries during the operation of the miniature permanent magnet motor, to avoid inhaling the inside of the motor, forming a short circuit or damaging the insulation and burning the motor to demagnetize the motor. To keep the motor with sufficient insulation resistance and a good ventilation and cooling environment, can effectively avoid the loss of magnetism of the permanent magnet.

The above is the method to keep the miniature permanent magnet DC motor from losing its magnetism. I hope it will be helpful to everyone.