Water level detection device and pulsator washing machine

Abstract

The invention provides a water level detection device and a pulsator washing machine, relates to the technical field of washing machines, and provides a new water level detection device suitable for a washing machine with a single cylinder structure. The device includes a suspension channel, a suspension magnetic ball, a magnetic ball scale and a signal acquisition structure. The suspension channel is arranged on the washing drum and communicates with the inside of the washing drum. The suspension magnetic ball is arranged in the suspension channel and can float on the On the water surface of the suspension channel; the outer cylinder outside the washing tub is provided with a magnetic ball scale, and a number of magnetic balls are distributed on the magnetic ball scale. When the height of the suspended magnetic ball changes with the liquid level in the suspension channel, The suspended magnetic ball can absorb the magnetic ball at the corresponding position to change the position of the magnetic ball, and the signal acquisition structure can collect the information of the magnetic ball whose position changes on the magnetic ball scale. The invention utilizes the mutual attraction of the magnetic balls and the counting by the photosensitive sensor to reflect the water quantity in the washing drum, and has a novel structure.

Description

technical field [0001] The invention relates to the technical field of washing machines, in particular to a water level detection device and a pulsator washing machine equipped with the water level detection device. Background technique [0002] With the advancement of science and technology, the automation level of human life is getting higher and higher, and daily housework is gradually replaced by machines from manpower. As a household appliance commonly used in daily life, laundry washing equipment has brought great convenience to people's lives. [0003] Clothes washing equipment is classified according to the washing method and can be roughly divided into top-wheel washing machines and drum washing machines. In the prior art, the washing machine uses a capacitive liquid level sensor to detect the water level in the washing tub. The detection principle of the capacitive liquid level sensor is to detect the water pressure in the washing tub, and the water pressure pushe...

AI Technical Summary

Problems solved by technology

[0004] During the detection process, since the output signal of the indirect capacitive liquid level sensor is non-linear, the input and output signals are relatively stable only under a certain pressure, resulting in inaccurate detection results of the capacitive liquid level sensor.

In addition, capacitive liquid level sensors are not suitable for washing machines with a single cylinder structure

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