The concept is exactly the same, but the structure can be divided into two types, but they are all called variable frequency DirectDriver. DD actually means the abbreviation of "direct drive" in English, which literally means "direct drive". Its original meaning means that the rotor of the motor is directly installed on the shaft of the inner cylinder (it can rotate).
Brief introduction of washing machine:
Washing machine is a kind of clean electric appliance that uses electric energy to generate mechanical action to wash clothes. According to its rated washing capacity, it can be divided into household and collective use. According to China's regulations, the washing capacity is less than 6 kg, which belongs to the domestic washing machine. The domestic washing machine mainly consists of a box, washing and dewatering barrels (some are separated), transmission and control systems, and some are also equipped with heating devices.