The use of intelligent robots is becoming more and more widespread, the motor as its main components, the correct choice is very critical, there are common DC brushless motors, DC brush motors, etc., so what is the difference between DC brushless motors and brush motors? Vacuz give you an introduction to it! Hope it can help you!

BLDC Brushless Motor

During the rotation of a DC motor, the current in the winding must constantly change direction to make the rotor rotate in one direction. Among them, brush motors are commutated by mechanical contact between the brushes and commutator, while brushless motors are detected by Hall sensors to detect the signal of the real-time running position of the winding, and then processed by microprocessors or special chips to the collected signal, real-time control of the corresponding drive circuit to control the motor winding.

Since the commutation of brushless DC motor is carried out by sensors and related circuits, there is no motor contact and wear between the brushes and commutator of this motor, so there is no need to replace the brushes and other wearable parts frequently, which can improve the performance and life of the motor and further reduce the maintenance cost.

At the same time, since there is no friction between the brushless DC motor’s brush and commutator, no electric spark will be generated before the changeover, which will greatly reduce the interference to the whole control system. However, since the current commutation of the brushless motor requires a special circuit for control, the whole control circuit will be more complicated.

Intelligent robots are indirectly driven by brushless motors, thus reducing the cost and improving the conversion efficiency of electrical and mechanical energy.

Usually, the intelligent robot brushless DC motor is integrated with the vehicle’s rear wheel spindle, the stator is mounted on top of the spindle, the motor’s housing serves as the rotor, and the rotor is connected to the steel ring of the rear wheel through a steel wire, and the two windings of the brushless motor of the electric booster are connected in a triangle.

Brush Motor

Intelligent machine candidate DC brushless motor and brush motor what is the difference? After reading the above, I believe you have a preliminary understanding, I hope it can help you!

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