Motor driving device and driving method for washing machine

Abstract

The invention relates to a motor driving device and a driving method for driving the motor for a washing machine with a dual rotor-dual stator structure. The motor for a washing machine with a dual rotor-dual stator structure is provided with no independent clutch, and an impeller and a dewatering tank are selectively used. The invention includes the components as following: a motor control portion, a driving signal is generated according to a washing control signal, and the motor for the washing machine is controlled to be driven; a transducer, a three-phase alternating current is generated under the control of the motor control portion, and the three-phase alternating current is output to the thirteenth phase stator coil for driving the outer rotor of the motor to rotate and output to the twenty-third phase stator coil for driving the inner rotor of the motor to rotate; and a first rotor driving control portion, which is arranged between the transducer and the twenty-third phase stator coil and used for blocking or permitting the three-phase alternating current to pass under the control of the motor control portion, and the rotation direction of the inner rotor is controlled.

Description

Technical field [0001] The present invention relates to a washing machine motor driving device and a driving method for driving a washing machine motor of a double rotor-double stator structure. The motor for a washing machine of the double rotor-double stator structure does not have a separate clutch, but can selectively make waves The wheel and dehydration tank rotate. Background technique [0002] Generally, a direct driving type washing machine uses a washing machine motor to selectively rotate a pulsator and a dehydration tank. [0003] For example, when the washing machine performs washing and rinsing actions of the laundry, the washing machine motor uses the washing machine motor to rotate the pulsator repeatedly in the forward and reverse directions. When performing the dehydration action, the pulsator and the dehydration tank are made to be the same The direction rotates at high speed. [0004] Existing direct drive washing machines all have clutches to use one washing mac...

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned clutch includes a coupling, a coupling lifting rod, a lifting rod driving part, etc., and includes a torque transmission part having a sun gear, a planetary gear, a carrier, etc., so that the rotor can be rotated when washing. The rotating force of the washing machine is transmitted to the pulsator, so its structure is very complicated, which has become the cause of the increase in the manufacturing cost of the washing machine

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