The difference between direct drive motor and magnetic levitation motor/bldc motor

What does direct drive motor mean?

Direct drive motor is the abbreviation of direct drive motor. It mainly refers to a motor that does not need to pass through a transmission device (such as a transmission belt, etc.) when driving the load. Direct drive motor is suitable for various types of washing machines. Its main advantages are quiet, energy-saving, stable and powerful.

Electric machine (English: Electricmachinery, commonly known as "motor") refers to an electromagnetic device that realizes electrical energy conversion or transmission according to the law of electromagnetic induction. The motor is represented by the letter M (D in the old standard) in the circuit. Its main function is to generate driving torque, thus serving as a power source for electrical appliances or various machines.

The difference between direct drive motor and magnetic levitation motor/bldc motor

Both direct drive motors and magnetic levitation motors belong to the category of modern high-tech motors. The difference between them lies mainly in their working principles and application areas.

A direct drive motor is a motor whose rotor is directly mounted on the drive shaft and transmits power by directly rotating the drive shaft without a transmission device (such as gears, belts, etc.). Direct drive motors usually use permanent magnets or electromagnets to generate torque, and have the advantages of high output efficiency, fast response speed, smoother operation, low noise, and long life. Direct drive motors are usually used in situations that require high precision and high speed control, such as machine tools, semiconductor production equipment, wind turbines, etc.

A magnetic levitation motor is a motor that uses magnetic levitation technology to achieve contactless operation. It uses permanent magnets or electromagnets to generate magnetic fields, and uses the interaction of magnetic fields to achieve suspension and rotation between the rotor and stator. Magnetic levitation motors have the advantages of no friction, no wear, high efficiency, high speed, high precision, and high reliability. Therefore, they are widely used in high-speed trains, centrifugal compressors, wind turbines and other fields.

Therefore, although direct drive motors and magnetic levitation motors are both high-tech motors, their working principles and application fields are different and need to be selected according to specific application requirements.

BLDC motor refers to a brushless DC motor, which uses permanent magnets or electromagnets to generate a magnetic field, generate electromagnetic induction force between the rotor and the stator, and realize the rotation of the rotor. BLDC motors have the advantages of high efficiency, high reliability, low noise, and long life, so they have been widely used in home appliances, industrial equipment, electric vehicles and other fields.

Therefore, although direct-drive motors and BLDC motors are both motors, their driving methods, control methods, and application fields are different, and they need to be selected based on specific application requirements.