KR19980016228A - Detecting the detergent input of washing machine - Google Patents

Abstract

The present invention relates to a washing machine for detecting whether or not a detergent to be supplied during washing is detected as an ion concentration of washing water which is detected after completion of water supply and after a predetermined washing time, The present invention relates to a detergent input method for detecting the concentration of ions in washing water after completion of water supply during washing and re-sensing the ion concentration of washing water after a predetermined washing time has elapsed, If the change in ion concentration has occurred, the washing operation is performed. If the ion concentration is not changed, the washing operation is stopped and an alarm is issued to determine whether the detergent So as to be supplied.

※ Representative figure 2

Description

Detecting the detergent input of washing machine

In particular, the present invention relates to a detergent input method of a washing machine, and more particularly, to a method of detecting detergent input into a washing machine by detecting the insertion of a detergent into the washing machine as an ion concentration of washing water detected after completion of water supply and a predetermined washing time, And if it is not, the washing is stopped and an alarm is issued.

Generally, when washing with a washing machine, the water level corresponding to the washing amount to be washed is determined and water is supplied at the determined water level, and then the washing is performed while rotating and rotating the motor. At this time, the washing water is more hygienic, In order to improve the detergent, the detergent was poured in the amount corresponding to the determined level with the water through a detergent bottle.

In general households, however, the detergent is put into the detergent container before washing with the washing water, and when the water supply is started normally, the user manually puts a predetermined amount of detergent into the washing machine.

Therefore, the user is required to input the detergent into the washing machine at the time of watering or after completion of the water supply, and if the user does not apply the detergent due to inadvertent carelessness, the washing machine may detect that the detergent is not introduced The washing machine can not achieve the desired washing power after the completion of the washing process. Therefore, the washing machine needs to be re-washed and consumes water and power for re-washing. .

The present invention detects the ion concentration of the washing water after completion of water supply during washing, re-senses the ion concentration of the washing water after a predetermined washing time, detects the ion concentration of the washing water sensed after completion of the water supply, If the change in the ion concentration has occurred, the washing is continued. If the ion concentration is not changed, the washing is stopped and the alarm is triggered to input the detergent.

FIG. 1 is a schematic control block diagram of a washing machine used in the present invention, and FIG. 2 is a flowchart of a detergent input detecting method of the washing machine of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

; An operation signal input unit; MICOM

All ; A water supply port eastern la; The water-

; A motor drive bar; The ion-

; Alarm department

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic control block diagram of a washing machine used in the present invention, which includes an operation signal input section (A) for inputting a washing operation signal for a series of washing strokes, (B) for supplying and discharging water to and from the washing tub according to a control signal of the microcomputer (b), and a controller A water level detecting unit (d) for detecting the level of the wash water drained and drained in the east part (c), and a motor driving part for washing, rinsing and dewatering driving at a high rotation speed and a high speed rotation by a control signal of the microcomputer (B) an ion concentration detector (bar) for detecting the ion concentration of the washing water during completion of water supply and a predetermined washing time according to a control signal of the microcomputer (b) By And an alarm part for issuing an alarm.

FIG. 2 is a flowchart of a detergent input detection method of the washing machine of the present invention. FIG. 2 is a flow chart illustrating a method of detecting detergent injection in a washing machine according to the present invention, A water supply completion judging step 21 for judging whether or not the water supply has been completed and a water supply completion judgment step 21 for judging whether the water supply is completed or not. A first ion concentration sensing and storing step 22 for sensing and storing the ion concentration N1 of the washing water in the first ion concentration sensing and storing step 22, (24) for judging whether a predetermined washing time (1 minute) has elapsed during the washing in the washing step (23), and a step (24) for judging whether or not the washing time has elapsed 24), the predetermined washing time A second ion concentration sensing and storing step 25 for sensing and storing the ion concentration N2 of the washing water and a second ion concentration sensing and storing step 25 for storing the ion concentration N2 sensed and stored in the second ion concentration sensing storing step 25, An ion concentration determination step (26) of determining an ion concentration difference with respect to the ion concentration (N1) of the wash water sensed and stored in the concentration sensing storage step (22); and a control step of, when the ion concentration difference has occurred in the ion concentration determination step A washing completion judgment step (27) for judging whether or not the washing is completed; and a control step of, when the ion concentration difference is not generated in the ion concentration determination step (26) And a stop and alarm step (28).

Hereinafter, the operation of the present invention will be described.

When a laundry is put into the washing machine while the power is applied to the washing machine and a series of washing strokes to be washed by the microcomputer is input through the operation signal input part A, The water level is detected by the water level sensing unit (d) with respect to the water level of the water to be supplied to the washing tub by controlling the water supply and drain driving unit (c) by going to the water supplying step (20) And water.

Then, the microcomputer B goes to a water supply completion judgment step 21 and judges whether the water supply level is completed at a predetermined water level. If the water level is not completed at this time, the water supply is completed until the water supply is completed . When the water supply is completed, the microcomputer (B) goes to a first ion concentration sensing step (22) to control the ion concentration sensor (bar) to sense and store the ion concentration N1 of the wash water .

When the ion concentration N1 of the washing water is sensed and stored, the microcomputer B goes to the washing step 23 to control the motor driving part E to perform the washing while rotating the motor forward and backward, It is determined whether the predetermined washing time (1 minute) has elapsed after the washing time has progressed to the washing time elapse judgment step (24). If it is determined that the predetermined washing time (1 minute) has not elapsed If the predetermined washing time (1 minute) has elapsed, the microcomputer (B) proceeds to the second ion concentration sensing and storing step 25 And controls the ion concentration detecting unit (bar) to sense and store the ion concentration N2 of the washing water having passed the predetermined washing time (1 minute).

Then, in the microcomputer B, a concentration difference between the ion concentration N1 sensed after completion of the water supply and the ion concentration N2 sensed after the predetermined washing time (1 minute) If the concentration difference between the ion concentration N1 sensed after completion of the water supply and the ion concentration N2 sensed after the predetermined washing time (1 minute) has elapsed as a result of the determination, the microcomputer (I) It is determined that the detergent is injected and the washing force is generated by the introduced detergent to thereby cause the difference in concentration. Then, the controller 30 determines whether the washing is completed by the washing completion judgment step 27. If the washing is not completed, (B), the washing is continued until the washing is completed by going to the washing step (23). On the other hand, if the concentration difference is not generated, the microcomputer (b) It is determined that the washing force is not generated even after a predetermined washing time (1 minute) has elapsed since the washing operation is not started. Then, the washing operation is stopped and alarming step 28 is performed to control the motor driving unit In addition, the user is alerted to the user that the detergent has not been supplied by controlling the alarm unit (S), so that the user can wash the detergent after putting the detergent.

As described above, the present invention detects the ion concentration of the washing water after completion of water supply during washing, re-senses the ion concentration of the washing water after washing for a predetermined washing time, and determines whether there is a change in the detected ion concentrations If the ion concentration is not changed, it is determined that the detergent is not supplied at the time of water supply, so that the ongoing washing is stopped and an alarm is issued. Thus, sometimes it is troublesome to re- It is possible to prevent water waste and power waste due to rewashing in advance.

Claims (1)

And a control unit for detecting the ion concentration of the washing water after completion of the water supply during washing and re-sensing the ion concentration of the washing water after the predetermined washing time has elapsed and then comparing the ion concentration of the washing water detected after completion of the water supply with the re- And the washing is stopped when the ion concentration is not changed, and the detergent is input when the change in ion concentration is detected. Way.