A kind of dishwasher liquid level detection method, device and dishwasher

Abstract

The invention provides a liquid level detection method and device for a dishwasher, and a dishwasher liquid level detection device. The method includes: acquiring the total capacitance capacity of a first capacitive liquid level detection device and a second capacitive liquid level detection device ; Determine the liquid level detection result of the dishwasher based on the relationship between the total capacitance of the first capacitive liquid level detection device and the second capacitive liquid level detection device after charging is completed and the preset reference capacitance. Therefore, by using two capacitive liquid level detection devices installed in different positions of the dishwasher, charging the two according to the preset voltage, and then detecting the relationship between the total capacitance after the charging of the two and the preset reference capacitance At the same time, the functions of detecting the water inflow of the dishwasher and overflowing are realized, thereby saving the overhead of hardware resources required for liquid level detection in the dishwasher and reducing the cost.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a liquid level detection method and device for a dishwasher, and a dishwasher. Background technique [0002] At present, dishwashers have become one of the most commonly used household appliances. During the operation of the dishwasher, it is necessary to test the water in the dishwasher to determine whether the water intake in the inner tank meets the requirements. Therefore, it is also necessary to determine whether the dishwasher is overflowing, and then control the water inflow to the dishwasher to avoid damage to the dishwasher. [0003] However, in the prior art, the principle of capacitive liquid level detection can be used, that is, the capacitance value will change correspondingly with the increase of the liquid level, so as to realize the detection of the water inflow of the dishwasher, and it can also be used to detect the overflow of the dishwasher. , b...

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a bowl machine liquid level detection method, device, and dishwasher to overcome the problem of high hardware resource costs in the prior art for realizing different liquid level detection requirements of dishwashers

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