DRAIN PUMP OF WATCHING MACHINE WITH EMBEDED DRAIN CONTROLLER

摘要

The present invention relates to a drainage pump device of a washing machine, and more particularly, to replace the motor of the drain pump for discharging the washing water of the washing tank from the AC motor to the BLDC motor in order to dehydrate the washing machine after washing or rinsing. BLDC motor drive and drainage control unit are integrated into the motor, and the built-in motor drive and control unit independently control the speed of the drainage pump according to the load fluctuation of the washing water to reduce the noise and vibration, and wash the drainage pump The present invention provides a device for detecting and removing foreign matters and removing and discharging them. As described above, the means for achieving the object of the present invention is a power smoothing unit for driving the motor, an SMPS unit for supplying power to the drive and the control device, a motor drive unit for driving the motor, detecting the rotational speed of the pump motor It consists of a speed detection unit, a speed command input and a detection speed output from the washing machine main controller, a communication to transmit the state of the pump motor, a command of speed and a water load calculation process by detecting the rotational speed.