Washing machine drive system

Abstract

A washing machine drive system is provided. A washing machine drive system according to an aspect of the present disclosure includes a housing, a motor stator coupled to the housing, a rotor facing the motor stator, an output shaft bearing-coupled to the housing, a planetary gear set coupled to the rotor and spline-coupled to an outer peripheral surface of the output shaft, a clutch stator coupled to the motor stator, and a clutch actuator spline-coupled to an outer peripheral surface of the planetary gear set so as to be vertically movable and facing the clutch stator, in which the clutch stator includes first to third coils arranged in parallel in a vertical direction, the clutch actuator is fixed to the rotor and transmits rotational force of the rotor to the output shaft at a 1:1 ratio when current is supplied to the first coil, the clutch actuator is fixed to the clutch stator, reduces the rotational force of the rotor at a gear ratio of n:1, and transmits the reduced rotational force to the output shaft when current is supplied to the third coil, and the clutch actuator is disengaged from the rotor or the clutch stator when current is supplied to the second coil.

Dependencies are inferred from the claim text.