Control device of brushless D.C. motor for fully-automatic washing machine and control method thereof

Abstract

The invention provides a full-automatic washing machine, including brushless DC machine, washing shaft, dewatering shaft and movable connector. The machine comprises stator and rotor; the washing shaft jointed to the rotor; the dewatering shaft set outside the washing shaft; the movable connector going up and down along the dewatering shaft. The control equipment and method: columnar coil, thermoelectric protector and Hall sensor. When the power is supplied, the coil acts on the electromagnet to attract the movable connector; when the coil temperature excessively rises, the protector connected to the coil switches off the power to protect the coil; several Hall sensors linked on the protector obtain the power supply to sense the rotary speed and direction of the electric machine.

Description

technical field [0001] The present invention relates to a clutch device for a fully automatic washing machine, in particular to a brushless DC motor control device for a fully automatic washing machine and a control method thereof (DEVICE FOR CONTROLLING BLDC MOTOR IN AUTOMATION-TYPE WASHING MACHINE): When the thermoelectric protector used to prevent the coil temperature of the cylindrical coil from rising excessively operates, the power supply of the Hall sensor connected to the thermoelectric protector is cut off at the same time, and the drive of the motor is stopped. Background technique [0002] Generally, the washing machine uses the gentle action of detergent, the friction of the water flow generated by the rotation of the washing fins, and the additional impact action of the agitator on the laundry to remove the pollutants attached to the clothes and bedding. The above-mentioned washing machine senses the amount and type of laundry through sensors, automatically sets...

AI Technical Summary

Problems solved by technology

At this time, since the Hall sensors ha and hb which are supplied with power from the power supply 400 through a separate drive circuit are still working, power is continuously applied to the motor so that the movable connector 80 and the high-speed motor which are descending while the rotor 50 is rotating at a high speed are still working. During the meshing process of the rotating drive port 58, a large load is applied to the above-mentioned movable connector 80 and the serrated protrusion of the drive port 58, and problems such as damage to the serrated protrusion occur.

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