Washing machine and drainage control method thereof

Abstract

The invention discloses a washing machine. The washing machine comprises a drainage pump, a drainage motor, a drainage detecting circuit and a controller, wherein the drainage motor is used for driving the drainage pump, the drainage pump comprises a pump shell and blades, the pump shell comprises a water inlet, and a cavity is arranged at the water inlet and communicated with the water inlet; the drainage detecting circuit comprises a first detecting end and a second detecting end, the first detecting end and the second detecting end are located in the cavity, and the drainage detecting circuit is connected and generates a drainage detecting signal when the water level in the cavity is larger than a preset water level; the controller is respectively connected with the drainage motor and the drainage detecting circuit and used for controlling the drainage motor according to the drainage detecting signal. By the washing machine, drainage noise can be lowered, and noise quality can be improved. The invention further discloses a drainage control method of the washing machine.

Description

technical field [0001] The invention belongs to the technical field of electric appliance manufacturing, and in particular relates to a washing machine and a drainage control method of the washing machine. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for the noise quality of washing machines, and the vibration and noise performance of machines has become an important indicator of the quality of washing machines. At present, most of the front-loading washing machines use top drainage. When the drainage pump is at full load or no load, the noise is very small and can be ignored. loud noise. The noise is discontinuous, like a humming sound, which feels bad to the ear. [0003] In the related art, the noise reduction of the drainage pump is mostly by adding a vibration-isolating pad between the drainage pump and the casing of the washing machine or adding rubber blocks on the blades or adding a discharge hol...

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Problems solved by technology

[0003] In the related art, the noise reduction of the drainage pump is mostly by adding a vibration-isolating pad between the drainage pump and the casing of the washing machine or adding rubber blocks on the blades or adding a discharge hole in the pump casing, but none of them are from the source. Above all, it solves the noise problem of the drainage pump at half load, and the noise reduction effect is relatively limited

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