3, use: brushless motor: usually digital frequency control, controllability, from a few revolutions per minute, to tens of thousands of revolutions per minute can be easily achieved. Carbon Brush Motor: The old carbon brush motor generally start after the work speed is constant, speed is not very easy, series motor can also reach 20000 RPM, but the service life will be shorter.
4, Energy Saving: Relatively speaking, brushless motor using frequency conversion technology control will be much more energy-saving than the series motor, the most typical is frequency conversion air conditioning and refrigerator.
5, future maintenance, carbon brush motor replacement carbon brush, if the replacement is not timely will cause damage to the motor, and brushless motor, long service life, usually brush motor more than 10 times, but broken need to replace the motor, but routine maintenance is rarely required.
6, the noise and whether the brush motor has nothing to do, mainly to see the bearing and motor internal components with the situation.
7. The parameters of the model brushless motor, in addition to the parameters such as external diameter, length, shaft diameter, weight, voltage range, no-load current and maximum current, there is also an important parameter -- Kv value, this value is a unique performance parameter of brushless motor, and it is an important data to judge the performance characteristics of brushless motor.
