Method for detecting washing powder residue and washing machine

Abstract

The invention discloses a method for detecting washing powder residue and a washing machine. The washing machine comprises a water barrel, a water inlet pipeline, a water outlet pipeline, a driving device and a control device, wherein the water inlet pipeline comprises a main path and a bypath; the main path is communicated with the water barrel after passing through a washing powder box; the washing powder is dissolved with water entering the main path to form cleaning solution which enters the water barrel; the bypath is directly communicated with the water barrel; a conductivity sensor, which is used for judging whether the washing powder residue exists in washings or not by detecting the conductivity of washing water, is arranged at an air chamber opening or a water outlet of the washing machine or the bottom of an external washing barrel; and the conductivity sensor detects the change of the conductivity of the water to determine the washing powder residue, so that the rinsing times are increased according to the washing powder residue until the washing powder residue is detected to be lower than the safety standard, the rinsing process is finished and the dehydrating process is performed. The method for detecting the washing powder residue and the washing machine can modify the rinsing times well through the accurate detection of the washing powder residue so as to wash and rinse cleanly and bring a healthy washing mode for users.

Description

Technical field [0001] The invention relates to a washing method and a washing machine, in particular to a method capable of detecting residual washing powder and a washing machine. Background technique [0002] Most of the current washing machines use a fixed washing program, especially the amount of washing powder input is not controlled. It is added completely based on the user's feeling. Therefore, after the same program is run, there may still be washing powder on the clothes, and the washing powder Powder is harmful to human health. [0003] Existing washing machines either set the washing time and rinsing times regardless of the dirtiness of the clothes or the amount of washing powder added; or they only detect the dirtiness of the washing water to judge the washing time and rinsing times, and ignore the residual washing powder , The fixed washing time, no matter how much washing powder remains, the washing and rinsing are the same. If too much washing powder is added, it ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the above-mentioned sensors is to detect the condition of the washing water before the washing machine works, and it does not detect whether there is any detergent powder in the washing water after washing.

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