What are the differences between brushless motors and carbon brush motors?

What are the differences between brushless motors and carbon brush motors?

What are the differences between brushless motors and carbon brush motors? In fact, brushless DC motors are composed of a motor body and a driver, and are a typical electromechanical integrated product. Due to the self controlled operation of brushless DC motors, they do not require additional starting windings on the rotor like synchronous motors that start under heavy loads under variable frequency speed regulation, nor do they produce oscillations and loss of step during sudden load changes. Therefore, it is generally used in equipment with high control requirements and high speed, such as aircraft models, precision instruments and meters, which strictly control the motor speed and achieve high speed.

And usually, power equipment uses brushed motors, such as hair dryers, factory motors, household range hoods, etc. In addition, the speed of series motors can also reach a high level, but due to the wear of carbon brushes, their service life is often not as good as brushless motors.

The service life of brushless motors is usually in the order of tens of thousands of hours, but due to different bearings, the service life of brushless motors also varies greatly. The service life of carbon brush motors: The continuous working life of brushed motors is usually several hundred to more than 1000 hours. When the service limit is reached, the carbon brush needs to be replaced, otherwise it is easy to cause bearing wear