How to determine the good and bad of DC brushless motor? What are the common ways and means?

How to judge the good and bad of DC brushless motor? What are the common ways and means? Many friends may not know very well, the following Vacuz give you an introduction to it! Hope it can help everyone!

There are several ways to judge the good and bad of DC brushless motors:

1. Observe the sound when the motor is running: when the motor speed is low, you should hear a subtle but continuous sound; when the motor speed is high, the sound will gradually become louder. If you hear the motor make a strange noise, noise or sound is not continuous, it means that the motor quality may not be good.

2. look at the vibration of the motor rotor: the motor rotor should be stable rotation, there should be no obvious shaking and chattering. If the rotor vibration is serious, it means that the motor is unbalanced or the center is shifted, and the quality may be problematic.

3. Measure the resistance and electromagnetic excitation of the motor winding: Use a multimeter or professional test instrument to measure the winding resistance and excitation size of the motor, which can quickly determine whether the motor has good performance and quality.

4. Check the density and quality of the motor winding: Check the density and quality of the motor winding to see if it is uniform and firm. If the winding coil is found to be loose, withdrawn or unevenly wound, it means that the motor may have quality problems.

How to judge the good and bad of DC brushless motor? What are the common ways and means? These are the common ways and means, in short, you can assess the good or bad of DC brushless motor by testing the motor sound, vibration, resistance and electromagnetic force, etc.

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