Tableware cleaning machine

Abstract

A dishwasher having an operating course suitable for using a dedicated low-foaming detergent and an operating course suitable for using a high-foaming kitchen detergent. In the kitchen detergent course, as a washing step for washing dishes, a first spray washing in which detergent water with detergent dissolved therein is sprayed over the dishes for a short time and the spray is stopped for a moment is preliminarily performed while discriminating the degree of foaming in a washing chamber with an optical sensor installed in a dry air passage, and when the foaming is determined to be large, a detergent water draining time is increased. After the detergent water in the washing chamber is discharged for the draining time, city water is fed to a specified level to control the concentration of the detergent water, and a second spray washing is performed as a washing. When the foaming is large in the first spray washing, the detergent water is thinned accordingly, and the foaming can be prevented from becoming abnormally large in the second spray washing. By using a kitchen detergent, excellent dish washing can be achieved while preventing foam from flowing over to the outside of the dishwasher.

Description

technical field [0001] The present invention relates to a dishwasher for washing dishes accommodated in a washing space by spraying water. Background technique [0002] In a typical household dish washer, water is supplied from a water supply source to a washing space for storing tableware so that water is stored at the bottom of the washing space, and the water is sucked by the washing pump and pushed to the nozzle arm, and then discharged from the device. The water spray port on the nozzle arm sprays water on the tableware, thereby washing and rinsing the tableware. The water that hits the tableware or the inner wall of the cleaning space returns to the bottom of the cleaning space, and the remaining vegetables are removed by the filter and then sucked by the cleaning pump. [0003] In this type of dishwasher, if a general kitchen detergent (hereinafter referred to as kitchen detergent) that is prone to foaming is used, abnormal foaming will occur during the washing opera...

AI Technical Summary

Problems solved by technology

[0010] (4) Since the foam generated when using kitchen detergent has the effect of promoting the removal of dirt and preventing the dirt from reattaching to the tableware, it is difficult to obtain sufficient cleaning performance in the case of operation that suppresses the generation of foam

However, it is very troublesome for the user to perform various operations according to the type of cleaning. In addition, it is also necessary to consider the fact that the type of detergent set by the user is different from the type of detergent actually injected.

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