Automatic throwing device and method for detecting residual amount of throwing material, washing machine

Abstract

The invention relates to washing field, and particularly relates to an automatic throw-in device and left throw-in stuff detection method thereof, and a washing machine. The automatic throw-in device comprises a storage box for containing the throw-in stuff, a drive motor in the storage box, and throw-in screw connected with the output shaft of the drive motor. The throw-in screw can rotate under the drive of drive motor, and accordingly drive the throw-in stuff in the storage box to achieve automatic throw-in. A sampling resistor is serially connected to the power line connecting an external power supply and the drive motor. Further included are a main control panel and a current acquisition apparatus for acquiring the current running across the sampling resistor. The main control panel can figure out the quantity of the left throw-in stuff in the storage box according to the acquired current vale. The device can continuously and accurately detect the quantity of the left throw-in stuff, does not require additional parts to be installed in the automatic throw-in apparatus, occupies small volume, is low in cost, and easy and convenient to realize.

Description

technical field

[0001] The invention relates to the field of washing, in particular to an automatic feeding device, a method for detecting the remaining amount of feeding products, and a washing machine. Background technique

[0002] In the prior art, many washing machines are equipped with a water treatment module, which can process the water in the washing machine, and the treated water can be reused. The water treatment module generally includes an automatic feeding device, which is used to put sewage treatment supplies into the water. The sewage treatment supplies are generally flocculants, and the flocculants clean the sewage.

[0003] The automatic feeding device includes a material storage box for holding the flocculant, the lower end of the material storage box is provided with a discharge part, and a driving motor is arranged inside the material storage box, and the output shaft of the driving motor is connected with the feeding screw And it can drive the feeding s...

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