Planetary reducer is a high-precision deceleration device commonly used in mechanical transmission, which decelerates the rotation of the input shaft and transmits it to the output shaft, thereby reducing the speed of the output shaft. This deceleration method mainly utilizes the transmission coordination between the planetary gear, the sun gear, and the planetary gear shaft, which has a strong deceleration ratio and transmission ability. 

Micro brushless motor is a new type of motor technology, characterized by small size, simplicity, low cost, high efficiency, safety and reliability. It is a type of motor that does not have brushes, but uses electromagnetic force to drive the motion of the rotor. Due to the lack of brushes, its manufacturing cost is much lower than traditional motors.

The difference between DD brushless motor and BLDC brushless motor. Firstly, the full name of DD brushless motor is Direct Drive brushless motor, which means that the directly driven motor eliminates the belt. Compared with traditional brushless motors, DD brushless motor has outstanding advantages such as ultra-low vibration, ultra-quiet, high cleanliness, energy conservation, and long service life, which can comprehensively improve the performance of washing machines.