KR950011690A - Residual detection device and rinsing dehydration method of automatic washing machine - Google Patents

Abstract

The present invention is to detect the contamination of the water drained during dehydration, if there is a lot of detergent and dirty material remaining in the laundry water supply and rinsing to reduce the residual amount of detergent in the laundry to detect the residue of the automatic washing machine and rinse dehydration It is about a method.

The present invention has an optical sensor installed around the drain valve to detect the degree of contamination of the water drained through the drain hose, the microcomputer detects the signal of the optical sensor by the detergent or dirty material contained in the drained water when dehydration starts When the change time is very long, it is determined that the residual amount of detergent and dirty material is very large, and further rinsing is performed. When the change time is within a predetermined range, water is supplied into the washing tank. Dehydration proceeds to remove dirt and detergent from the laundry.

Description

Residual detection device and rinsing dehydration method of automatic washing machine

Since this is an open matter, no full text was included.

1 is a washing machine structure showing the installation state of the residue detection device of the present invention,

2 is a control circuit diagram of a fully automatic washing machine to which the present invention is applied;

3 is a control flow chart showing a rinsing dewatering method of the present invention,

Figure 4 is a graph of the detection signal of the light sensor as the draining time elapses.

Claims (3)

An optical sensor installed around the drain valve to detect the degree of contamination of the water drained through the drain hose, and when the amount of detergent or dirty material remaining in the laundry is received by receiving a detection signal from the optical sensor, further rinsing is performed. Residual detection device of a fully automatic washing machine comprising a micom. When dehydration is started, draining the water in the washing tank dirty by the rinsing operation, detecting the degree of contamination by detergent or dirty substances remaining in the drained water, and proceeding or rinsing according to the detected degree of contamination Rinsing and dehydration method of a full automatic washing machine characterized in that the control to the step to perform more. The method of claim 2, wherein the rinsing and dehydration step according to the pollution degree is to check the change time that the detection signal of the optical sensor is reduced by the detergent or dirty material contained in the drained water, and the first reference time set the change time When the change time is greater than the first reference time, comparing the change time with a second reference time set longer than the first reference time, if the change time is greater than the first reference time; If it is greater than the 2 standard time is determined that the residual amount of detergent and dirty material is very large, further rinsing, and if the change time is less than the second reference time, the step of dehydrating while supplying water into the washing tank Rinse dewatering method of a full automatic washing machine characterized in that. ※ Note: The disclosure is based on the initial application.