The main differences between brushed motors and brushless motors are in terms of structure, service life, energy consumption, noise, price and power difference.
Structure: Brush motors contain carbon brushes and change the direction of current through mechanical commutation, while brushless motors are electronically commutated without carbon brushes and use Hall elements to sense the position of magnetic poles and control the direction of current by the controller.
Lifespan: Brushless motors usually have a longer lifespan of 7-10 years, while brushed motors have a shorter lifespan of about 2-3 years.
Energy Consumption: Brushless motors consume less electricity, usually one-third that of brushed motors.
Noise: Brushless motors are very quiet when running because there are no carbon brushes, while brushed motors are noisy due to the presence of brushes.
Price: Brushless motors cost more because they require additional controller control, while brushed motors are less expensive.
Power difference: Brushless motors have relatively high speed and energy efficiency, while brushed motors have relatively low speed and low energy efficiency.
In summary, brushless motors have obvious advantages over brushed motors in terms of structure, service life, energy consumption, noise, price and power. Although brushless motors are more expensive, they have lower long-term operating and maintenance costs and are more suitable for applications requiring high efficiency and reliability.