Water leakage preventing structure for hardness sensor of washing machine

Abstract

The water leakage preventing structure for hardness sensor of washing machine consists of air chamber, hardness sensor and sealing ring. The air chamber is set on one side of the drum in washing machine, the hardness sensor detects the hardness of water fed to the drum, and the sealing ring is installed on the side of the hardness sensor. In one other water leakage preventing structure, the cylindrical air chamber with downward opening is set in the lower side of the drum, the hardness sensor is inserted in the air chamber. The present invention has hardness sensor in easy to install structure and no water leakage between the sensor and the drum.

Description

technical field [0001] The invention relates to a water leakage preventing structure of a hardness sensing sensor for a washing machine, in particular to a water leakage preventing structure of a hardness sensing sensor which is easily installed on a drum and prevents water leakage between the sensor and the drum. Background technique [0002] figure 1 It is a cross-sectional view of a structure of a hardness sensing sensor for a washing machine in the prior art, figure 2 It is an exploded schematic view of the structure of the hardness sensing sensor used in the prior art washing machine. [0003] Such as figure 1 or figure 2 As shown, the water leakage prevention structure of the hardness sensing sensor used in the prior art washing machine is composed of an air chamber 52, a hardness sensing sensor 53 and an adhesive 4. The air chamber 52 is at the lower side of the drum 51 of the washing machine, and the desalinated washing water is input to the drum. Water, the ha...

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Problems solved by technology

[0011] But the anti-leakage structure of the hardness sensing sensor used in the prior art washing machine is the structure that prevents the washing water from leaking when the shaft sleeve body 70 and the air chamber 52 are pasted under the action of the glue 4, so it is impossible after the glue 4 is hardened. Unloading the hardness sensing sensor 53, which caused the problem of difficult maintenance

[0012] Moreover, the adhesive glue 4 has high flexibility, and it is impossible to get a certain amount to coat evenly when the hardness sensing sensor 53 is installed at every turn, thereby reducing the work efficiency of installing the hardness sensing sensor 53 on the air chamber 52, and also increasing the ozone density. frequency of occurrence

Especially, if the adhesive glue 4 sticks on the electrode sensor 58 and the temperature sensor 62, the perception ability of the sensor will be reduced, and a perception error will occur.

[0013] In addition, if the coating amount of the adhesive 4 increases, the coated adhesive 4 may overflow to the outside of the adhesive surface, causing pollution; on the contrary, if the coating amount of the adhesive 4 decreases, the washing water will easily leak to the Between the sticking surface of the hardness sensing sensor 53 and the air chamber 52

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