How about Haier washing machine direct driver?
DD is short for direct driver, followed by motor, which is called DD, and direct driver is also called direct drive motor. \xd\\xd\ Because of its large output torque, some companies directly refer to this product as torque servo. Different from the traditional motor, this product can be directly connected with the moving device because of its large torque, thus eliminating the connection mechanisms such as reducer, gearbox and pulley, so it is called direct drive motor. \xd\\xd\ Because this type of motor is generally equipped with a high-resolution encoder, the precision of this product can reach one level higher than that of ordinary servo. Because of the direct connection mode, the positioning error caused by mechanical structure is reduced, and the process accuracy is guaranteed. On the other hand, for some camshaft control methods, on the one hand, the size error caused by mechanical structure friction is reduced, on the other hand, the noise during installation and use is greatly reduced. The appearance of \ \xd\ \xd\DD motor technology has broken the routine that the drum consumes more electricity than the impeller. DD direct drive technology has changed the previous operation mode with belt as the medium, and directly driven by motor. The efficiency of the motor is 16 times that of the traditional motor, and the energy saving is about 35%, so that the drum washing machine is not inferior to the pulsator washing machine in energy consumption. At the same time, DD direct drive technology also solves the problem of large vibration and noise of drum washing machine. What's even more surprising is that the thinnest drying drum washing machine using DD motor is only 44cm, which can be easily embedded in all kinds of integral cabinets. DD direct driver removes the belt, pulley and other parts, and its ultra-thin figure makes the diameter and depth of the drum inside the washing machine so that it can easily realize large capacity under the condition that the volume of the washing machine remains unchanged. As the number one contributor to ultra-thinness, DD direct driver's ultra-quiet work is even more commendable. \xd\DD direct driver is applied to intelligent drying drums with different capacities such as 5.2 kg, 7 kg, 9 kg, 1 kg, etc., which makes the product have the advantages of strong power, long service life, silence and energy saving. Because of its excessive noise, the washing machine is worried about disturbing the rest of family and neighbors, and it can't be used as needed as refrigerators, air conditioners and other household appliances. This ultra-thin drum washing machine of DD direct driver is used to drive the inner drum directly by the motor, which is greatly improved. \xd\ Excellent: low energy consumption, high efficiency, low noise, low failure rate, and large amount of laundry at one time. \xd\ Disadvantages: it is inconvenient to maintain. After long-term operation, the temperature of the motor exceeds 7°C, and the speed changes greatly to about -2%~1%, and the speed changes greatly between motors.