Unit for measuring water quality in washing machine

Abstract

A water quality detecting device of washer consists of transducer shell set on outer cylinder, a pair of electrode transducer for detecting out washing water conductivity, protective rib for protecting electrode transducer, temp transducer for detecting out washing water temp and protection rib for protecting temp transducer. The leakage water is leaked out at internal side of protective rib down wards to protect the electrode transducer when leakage is occured.

Description

technical field [0001] The invention relates to a detection device of a washing machine, in particular to improving the structure of the water quality detection device of the washing machine, and preventing the electrode sensor from being conductive due to the leaked washing water inside the casing. Background technique [0002] Generally, a washing machine is a device that uses appropriate detergent and mechanical force to remove stains on foreign objects. After putting the laundry into the inner tub with built-in washing wheels, inject detergent and washing water into the outer tub, and use the motor to rotate the inner tub and the washing wheel. , and then through the process of washing, rinsing, and dehydration to wash the clothes. [0003] The so-called water quality is a term that expresses the strength of water. Water with high hardness contains insoluble magnesium ions or calcium ions, which reduces the cleaning ability of detergents. This kind of water cannot be use...

AI Technical Summary

Problems solved by technology

[0010] However, after the epoxy resin 14 of the water quality detection device designed in the prior art is used for a long time, the tightness is reduced, or due to being damaged by external vibration and impact force, when the sealing is reduced, the washing water will pass through the electrode sensor 8 and The gap between the sensor holes 6 flows out, and the electrode sensor 8 is energized by the water flowing into the sensor housing 4, which causes the electrode sensor 8 to fail to correctly measure the conductivity of the washing water, causing the washing machine to operate in the wrong washing mode

Moreover, during the solidification process of the molten epoxy resin 14 injected into the sensor housing 4, it may flow out through the gap between the electrode sensor 6 and the sensor hole 8

In the installation process, it is very difficult to insert the electrode sensor 8 and the temperature sensor 12 into the sensor hole 6 and the protruding structure 10. 12 will also disengage or shift

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