Washing machine with water conductivity measuring electrodes

Abstract

The invention discloses a washing machine with water conductivity measuring electrodes. The washing machine includes a shell, an outer barrel arranged in the shell, an inner barrel rotatably arranged in the outer barrel, a plurality of electrodes nested in open holes at the bottom of the inner barrel, a waterproof layer, protective frames and a controller arranged on the cover of the washing machine; the waterproof layer coats the surfaces of the electrodes and includes an organic silicone rubber layer, a waterproof adhesive layer, a sealant layer and a polyethylene layer which are distributed from outside to inside sequentially, wherein two ends of the polyethylene layer and two ends of the organic silicone rubber layer are partially combined; the protective frames are in one-to-one correspondence with the electrodes and are nested at the upper parts of the open holes at the inner barrel; an accommodating space is formed by each protective frame and a corresponding open hole; the protective frame is made of rubber materials and includes a side wall and a top plate connected with the side wall; the electrodes are fixed in the accommodating spaces; and the detection ends of the electrodes pass through the through holes of the top plates; and the plurality of electrodes are electrically connected with the controller respectively; and the controller is used for controlling a washing program of the washing machine according to the average value of the conductivity of washing water measured by the plurality of electrodes.

Description

technical field [0001] The invention relates to a washing machine with electrodes for measuring the conductivity of water. Background technique [0002] Generally speaking, washing machines are used to wash clothes with water and detergent, and a key factor that determines the quality of washing is the water hardness of the washing water. Since tap water contains hardness components such as calcium, iron, strontium or magnesium, and these components combine with the surfactant, the main component of the detergent, to form soap scum, the amount of surfactant in the washing water is reduced, resulting in a decrease in cleaning ability. Although there is also a method to adjust the amount of detergent and water when washing according to the hardness of the washing water, the first is that the cost is too high, and the second is that there is only one electrode to measure the hardness of water in the prior art. When debris such as lint and lint may accumulate on the surface of ...

AI Technical Summary

Problems solved by technology

Since tap water contains hardness components such as calcium, iron, strontium, or magnesium, and these components combine with the surfactant, which is the main component of the detergent, to form soap scum, the amount of surfactant in the washing water is reduced, resulting in a decrease in cleaning ability

Although there is also a method to adjust the amount of detergent and water when washing according to the hardness of the washing water, the first is that the cost is too high, and the second is that there is only one electrode to measure the hardness of water in the prior art. When debris such as lint and lint may accumulate on the surface of the electrode or between the electrodes, the surface area of ​​the electrode in contact with the washing water will decrease or the current will flow through the lint and clothes, so that the conductivity of the washing water cannot be measured correctly. At the same time, Under the impact of water flow, the electrode may swing and affect the measurement accuracy, so the hardness of the washing water cannot be converted correctly

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