Compare the difference between brushless motors and brushed motors.
There are various types of DC motors, which can be divided into brushless motors and brushed motors. Although the difference is only one word, they belong to different motors, so they have differences in many aspects. Some users do not have a deep understanding of motors, so they do not know which is brushless and which is brushed. You will know through the following comparison:
1、 Is there a commonly used brush commutator configured
1. The commutation of brushed motors is achieved through the contact between graphite brushes and annular commutators installed on the rotor.
2. The brushless motor feeds back the rotor position to the control circuit through a Hall sensor, allowing it to know the accurate time of motor phase reversal. Most motors have three Hall sensors.
2、 Differences in performance requirements
1. Brushed motor: It is a traditional product with relatively stable performance.
2. Brushless motor: It is an upgraded product with better lifespan performance than brushed motors. But its control circuit is relatively complex and requires strict aging screening of components.
3、 Lifespan
1. Brushed motor: can work continuously for about 5000 hours, with a normal service life of 2-3 years.
2. Brushless motor: can work continuously for about 20000 hours, with a conventional service life of 7 to 10 years.
4、 Energy saving
The power consumption is only one-third of that of a brushed motor.
There is a certain correlation between brushless motors and brushed motors, and they both belong to different motors. Although both use direct current, only by understanding the two can we help users choose motors and prevent other problems caused by improper use.
