Washing machine

Abstract

The invention discloses a washing machine, which comprises a water inlet valve installed on a supporting component, an automatic liquid detergent feeding device arranged on the supporting component and consisting of a detergent tank, an air pump and a detergent containing part, an opening arranged above the detergent containing part and communicated with the detergent containing part, the water inlet valve and the air, a detergent filling hose connected between the detergent containing part and an upper cover of an outer bucket, and a control part for controlling a series of processes. The control part controls the air pump to act so as to put the liquid detergent into the outer bucket from the detergent tank via the detergent containing part and the detergent filling hose, then the control part controls the water inlet valve to act so as to put water into the outer bucket via the opening, the detergent containing part and the detergent filling hose; the detergent containing part and the detergent filling hose are internally washed so as to prevent the gelatinization of the liquid detergent, so that the liquid detergent can have specified performances.

Description

technical field [0001] The invention relates to a washing machine capable of detecting the type of detergent and controlling the feeding of liquid detergent. Background technique [0002] In this type of washing machine in the past, someone has proposed a kind of scheme (wherein one example can refer to the Japanese Patent Laid-open Publication 2001- 259290). [0003] Image 6 It is a longitudinal sectional view of the first embodiment of the conventional washing machine disclosed in the above-mentioned patent publication, Figure 7 It is a partially cutaway perspective view showing the second embodiment of the conventional washing machine. [0004] Such as Image 6 As shown, the casing upper cover 19 covers the upper part of the casing 6, and the control device 10, the water inlet valve 11, the water inlet passage 12 and other components are arranged inside it. [0005] The inside of above-mentioned casing upper cover 19 is also provided with a detergent tank 21, and the...

AI Technical Summary

Problems solved by technology

[0013] However, in the above-mentioned existing structure, there are the following problems: since the stock solution of liquid detergent will pass through the liquid discharge port 25c, it is impossible to avoid a small amount of residual liquid detergent.

This residual detergent reacts with moisture in the air to gel as time goes by, and further accumulates, making the liquid discharge port 25c gradually narrow, making it difficult to dispense liquid detergent.

[0014] In addition, when the user supplies hot water such as bath water to the washing machine for washing, the heat generated by the hot water will penetrate into the inside of the detergent tank 25 from the liquid discharge port 25c, and the liquid detergent will gel in the detergent tank 25. It will no longer be able to give full play to its performance as a liquid detergent

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