Washing machine

Abstract

The invention provides a washing machine, which comprises an outer tub hung inside a tank, an inner tub supported inside the outer tub, an impeller arranged on the inner bottom of the inner tub, a driving part for driving the rotation of the inner tub and the impeller, an inlet valve arranged on the upper part of the tank, a drain pipe communicated with the bottom of the outer tub, a drain valve for discharging the water inside the outer tub via the drain pipe, a feculent degree detection part arranged inside the drain pipe for detecting the feculent degree of the detergent, a conductivity detection part arranged beside the bottom of the outer tub and equipped with a pair of electrodes and a control part for controlling the cleaning process, the rinsing process and the dehydration process. During the washing process, the feculent degree of the detergent is detected by the feculent degree detection part and the conductivity of the detergent is detected by the conductivity detection part. According to the detection results of the feculent degree detection part and the conductivity detection part, the whole process is controlled by the control part. Therefore, the washing process can be effectively controlled and the washing performance is improved.

Description

technical field [0001] The invention relates to a washing machine capable of controlling the operation of the process according to the degree of dirt of the washing liquid. Background technique [0002] In the washing machine of prior art, the washing liquid state detection sensor that has is used to detect the state such as the state of washing liquid dirt etc. is provided with electric conductivity sensor etc. in the water tank, detects the state such as the state of washing liquid dirt, thereby controls washing machine. process (for one example, refer to Japanese Patent Laid-Open Publication No. Hei 4-187183). [0003] Figure 6 It is a schematic diagram illustrating the relationship between the degree of soiling and the control of the washing process based on the degree of soiling during the washing process of the conventional washing machine disclosed in the above reference. [0004] exist Figure 6 in, V 1f It is the conductivity V at the initial stage of washing and...

AI Technical Summary

Problems solved by technology

However, for laundry that is mainly muddy, even if the degree of dirt is actually serious, the conductivity sensor can only detect a small conductivity.

Therefore, the laundry containing mud, etc., will be judged as the result of light soiling, so that it will not be cleaned sufficiently.

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