fpa direct drive inverter motor is good.
Direct drive motors including torque motors and linear motors. The purpose of the torque motor is to produce a large torque under a certain volume and armature voltage amount of low speed, generally made into a flat structure, the number of pole pairs more. In order to minimize the fluctuation of torque and speed, a larger number of slots and commutator plates are used.
Permanent magnets are usually used to generate the magnetic field. And linear motor is a kind of transmission device that directly converts electric energy into mechanical energy of linear motion without any intermediate conversion mechanism by unfolding closed magnetic field into open magnetic field.
1, bldc brushless inverter motor is through the belt drive, can buffer the motor and the inner tube of the turn-stop ratio; dd direct-drive inverter motor is through the bearings and shafts to drive directly to the inner tube, the motor and the inner tube of the turn-stop ratio of 1:1; dd direct-drive drive theoretically more efficient, but the difference is not much in actual use.
2, for the wave washing machine, because the washing machine in the operation of the rotation speed is generally about 700 revolutions per minute, the speed is not very high, the motor requirements are relatively low, direct-drive motors have more advantages.
3, for the drum washing machine, due to the drum washing machine speed are very large, the current market generally use 1400 rpm, individual brands have more advanced 1600 rpm maximum speed, the washing machine operation process will be high-speed start and high-speed stop phenomenon.