What are the advantages of DC brushless motors

    As a type of synchronous motor, DC brushless motor‘s rotor speed is affected by the speed of its stator rotating magnetic field and the number of rotor poles. DC brushless motor has a series of advantages such as simple structure, reliable operation, and convenient maintenance of AC motor, as well as many advantages such as high operating efficiency and good speed regulation performance of DC motor. The most important part of a DC brushless machine is its control structure, and its driver can control the rotor to maintain a certain speed, resulting in more stable performance. DC brushless motor is a low-power motor that utilizes sub commutation. DC brushless motors are widely used in modern production equipment, instruments, computer peripherals, and advanced household appliances. So what are the performance advantages of DC brushless machines?

    1. High efficiency- The efficiency of ordinary brushless DC motors can reach over 96%, while the efficiency of traditional DC motors is generally around 75%; High efficiency, achieving high energy conversion, and converting electrical energy into motor rotational mechanical energy is high, which is directly reflected in energy saving, saving more than 20% compared to traditional motors. If the motor runs for a long time, using a brushless DC motor can save the electricity cost of one motor per year, and the long-term use has a higher cost-effectiveness. Although the initial purchase price of a brushless DC motor is higher than that of ordinary traditional motors, the energy-saving effect is very obvious.

    2. Long lifespan: Traditional motors with brushes generally require frequent replacement and maintenance due to the wear and tear of carbon brushes. On the other hand, DC brushless motors generally have a lifespan of over 20000 hours. Under normal operating conditions, they will not be damaged after more than 5 years of use, so the lifespan of DC brushless motors is five times that of traditional motors. Low noise; Due to its simple structure, DC brushless motors can be installed and run smoothly with precise matching of spare parts. The operating sound is below 50dB. Many medical devices use DC brushless motors due to their quiet performance. However, traditional motors require the replacement of carbon nanotubes, which cannot achieve sealing performance. The wear and tear of carbon nanotubes also cause friction noise, with noise levels generally above 60dB, which cannot meet the requirements of high silent equipment.