Structure of water quality sensor of washing machine

Abstract

The water quality sensor structure for washing machine includes outer tub holding washing water, open-mouthed pipe installed to the washing tub and water quality sensor for detecting the quality of washing water, as well as positioning blade in one the water quality sensor side to determine the position of the water quality sensor and installation error preventing blade in the outer tub side to avoid error installation of the water quality sensor. The present invention makes it possible for the water quality sensor to be installed in optimal mode and this can ensure the correct installation.

Description

technical field [0001] The invention relates to the field of washing machines. Background technique [0002] The invention relates to a structure of a water quality sensing device for a washing machine, which can prevent the water quality sensing device from being wrongly installed on the washing machine. [0003] Hardness is a term that expresses the softness and hardness of water quality. Calcium, magnesium, iron, manganese, strontium and other elements increase water hardness. As we all know, insoluble ions such as magnesium ions and calcium ions contained in high-hardness water will seriously affect the washing effect of detergents, and are not suitable for domestic water or industrial water. [0004] The latest development trend of today's new washing machines is to install various sensing devices inside the washing machine to effectively distinguish water of various hardness, and to select the most appropriate washing mode according to the different water quality, so...

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Problems solved by technology

[0023] But, the design structure of the washing machine water quality sensing device of prior art is because the water quality sensing device 9 is installed below the air chamber 17 on the bottom side of the outer tub 4, causing the installation space of the water quality sensing device 9 to be insufficient, and because the water quality sensing device 9 is too large. Close to the ground reduces maneuverability

[0024] It is very inconvenient to install the water quality sensing device 9 at the bottom of the gas chamber 17, and it is not easy to align the mounting hole 44a of the connecting portion 44 on the connecting flange 38 with the connecting member 42, and it is difficult to properly install a plurality of connecting flanges 36 on the connecting member 42. connection part 44

[0025] Because the installation of the water quality sensing device 9 is very cumbersome, the production efficiency of the product is reduced, and it is easy to assemble the water quality sensing device 9 on the air chamber 17 in the wrong direction and installation position, which leads to an increase in the product failure rate

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