KR0134314B1 - Drainage alarm method for a washing machine - Google Patents

Abstract

The present invention relates to a drainage alarm method of a washing machine to notify that there is an abnormality in the drainage when the drainage after washing or rinsing completion is not a predetermined drainage for a predetermined time, the present invention after washing and rinsing In the drainage warning method for warning when the drainage, when the washing and rinsing the drainage, washing and rinsing the water level when detecting, if the drainage is started, detecting the water level drained for a predetermined time, and draining the predetermined time in the step Determining the magnitude of the randomly set water level change value and the water level change value after a predetermined time elapses, and if the water level change value is large after a predetermined time elapses in the step, the drainage is continued, and when it is small, an early warning is made. It is characterized by consisting of steps.

Description

Drainage alarm method of washing machine

1 is a schematic control block diagram of a washing machine used in the present invention.

2 is a flowchart of a drainage warning method according to the present invention.

* Explanation of symbols for main parts of the drawings

A: Key input part B: Water level detection part

C: quantity detection unit: Micom

E: Indicator bar: Supply and drain drive unit

4: Motor drive part Ah: Alarm part

The present invention relates to a drainage alarm method of a washing machine, and more particularly, to a drainage alarm method of a washing machine, which warns that there is an abnormality in drainage by an alarm when the drainage does not reach a predetermined level for a predetermined time during drainage after washing or rinsing completion. It is about.

The drainage warning method of the conventional washing machine does not put down the drain hose due to the carelessness of the user when draining after washing or rinsing completion, or the drainage device is not drained due to a failure of the drainage motor, a drainage drive circuit, or a foreign material in the drain. Even if the predetermined predetermined draining time has elapsed, when the water level sensor does not detect that the drainage is completed, it is to warn that there is an abnormality in the drainage.

In other words, even if there is an abnormality in the drainage operation, it is impossible to know that there is an abnormality until a randomly set drainage completion time elapses.

An object of the present invention is to alert to early warning that there is an abnormality in the drainage, even if a randomly set time elapses after the completion of washing and rinsing.

Another object of the present invention is to reduce the unnecessary time wasted during drainage by warning early if there is an abnormality in drainage.

In order to realize the above object, the present invention detects and stores the water level during washing and rinsing, and then detects the water level drained for a predetermined time during draining after washing and rinsing completion, and Calculating a level value with the detected storage level during the washing and rinsing, and comparing the magnitude with the level change value which becomes the normal drainage until the calculated level is completed at a randomly set drainage time; In the step, if the water level value is greater than the water level change value to be the normal drainage, the water is drained until the drainage is completed. If the water level value is smaller than the water level change value to be the normal drainage, an early warning is made. It is characterized by.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic control block diagram of a washing machine used in the present invention, a key input unit (A) for inputting a signal for a washing operation, and a water level sensing unit (B) for detecting a washing water level supplied during the washing operation. And a quantity detecting unit (C) for detecting a quantity of laundry in the laundry operation, and a microcomputer controlling a signal input from the key input unit (A) and outputting a signal controlled and controlled by a predetermined program ( D) a display unit (e) for receiving a control signal output from the microcomputer (d) and displaying an operating state, and a water supply / drainage driver (bar) for receiving water and draining the control signal output from the microcomputer (d); The motor driving unit (G) performs washing, rinsing, and dehydration operation by receiving the control signal output from the microcomputer (D), and the start and end of the washing administration and abnormality by receiving the control signal output from the microcomputer (D). The alarming hayeoseo will consist of (a) emits an alarm.

FIG. 2 is a flowchart of the drainage warning method according to the present invention. In the state of washing and rinsing, the first water level detection step 20 of reading and detecting the water level data L1 through the water level detection unit and the first level If the washing and rinsing is completed in the state of detecting the water level data (L1) in the water level detection step 20, the drainage step 21 to start draining, and if the drainage starts in the draining step 21, A second time for detecting water level data (L2) through a water level detection unit when the time determination step 22 determines whether 20 seconds) has elapsed, and when the arbitrarily set time (20 seconds) has elapsed in the time determination step 22; Obtaining a degree data between the water level detection step 23, the water level data L2 detected in the second water level detection step 23, and the water level data L1 detected in the first water level detection step 20, The water level data depends on the preset washing level. The water level comparison step 24 for comparing the magnitude with the minimum level change value L of the normal drainage during the drainage time set to 5 minutes and the order level data in the water level comparison step 24 are normal. If the water level is greater than the minimum water level change value (L) during draining, the drainage step 25 proceeds with drainage until the drainage is completed while determining whether the drainage time is completed, and the order level data in the water level comparison step 24. If is less than the minimum water level data change (L) in the normal drainage is to be made to the alarm step 26 to alert the drainage abnormality through the alarm that there is an abnormality in the drainage.

Referring to the effects of the present invention configured as described above are as follows.

First, when a washing signal is input by the user through the key input unit (a) while the power is supplied to the washing machine, the microcomputer (d) displays the driving signal input through the display unit (e) and supplies the drain. Control the eastern (bar) and supply water to the washing tank, and determine the water supply level by detecting the quantity according to the washing amount through the quantity detection unit (C), and proceed with the determined water supply, but determined through the water level detection unit (B) Water supply and completion is completed by detecting whether water supply is completed.

When the water supply level is completed, the microcomputer (d) controls the motor driving part (g) to proceed with washing, but proceeds until washing is completed.

At this time, the microcomputer (d) proceeds to the first water level detection step 20 by a predetermined program, detects and stores the water level data L1 determined at the time of washing, and proceeds with washing.

When the laundry is completed as described above, when the washing is completed, the microcomputer (d) goes to the draining step 21 to control the water supply and drainage part (bar) to proceed with draining. Going to the time judging step 22, it is determined whether the arbitrarily set period (20 seconds) has elapsed after the drainage starts. At this time, if the arbitrarily set time (20 seconds) has not elapsed, the time set arbitrarily in the microcomputer (d) is determined. Continue draining until it is complete.

However, when the randomly set time (20 seconds) is completed and the level is detected, the microcomputer (d) goes to the level comparison step 24 and detects the level data L1 and the randomly set time 20 for the determined level. Obtain the order level data with the water level data L2 drained during the second, and the minimum level change value of the normal level drainage at the time (5-10 minutes) when the drainage is completed according to the determined level. L) is determined, in which case the order level data (L1-L2) is larger than the minimum level change value (L) that can be normally drained for the determined level for the arbitrarily set time (20 seconds). If it is not large and small, the microcomputer (D) determines that normal drainage is not performed because foreign matter is stuck in the drain or an abnormality occurs in the drain motor and the driving circuit. Go to the system 26 to control the alarm unit (a) to alert the user that the drainage.

In addition, the same applies to the drainage after the completion of the washing administration as well as the drainage after the completion of the rinsing stroke.

As described above, the present invention obtains the order level data at the time of drainage for a predetermined time for draining the water level determined at the time of drainage after washing and rinsing completion. If it is greater than or less than the value (L) is determined at this time to drain until the completion of drainage, if it is small by early warning, the drainage time unnecessarily longer due to the above drainage, as well as the use of a washing machine It will be able to provide convenience.

Claims (1)

In the state of washing and rinsing, the first water level detection step 20 for reading and detecting the water level data L1 through the water level detection unit, and the water level data L1 is detected in the first water level detection step 20. When the washing and rinsing is completed in one state, a drainage step 21 of controlling draining water supply and driving to start drainage, and determining whether a predetermined time (20 seconds) has elapsed when drainage is started in the drainage step 21. A second water level detection step 23 for detecting water level data L2 through a water level detection unit when the time determination step 22 and the arbitrarily set time (20 seconds) have elapsed in the time determination step 22; The water level data L2 detected in the second level detection step 23 and the water level data L1 detected in the first water level detection step 20 are obtained, and the order level data is obtained. (L1-L2) The drainage time set arbitrarily according to the preset washing level The water level comparison step 24 for comparing the magnitude with the minimum level change value L for normal drainage during 5 minutes and the order level data L1-L2 in the water level comparison step 24 are performed. If it is greater than the minimum water level data change value L in the normal drainage, the drainage step 25 proceeds with drainage until the drainage is completed while determining whether the drainage time is completed, and the order level in the water level comparison step 24. If the data (L1-L2) is less than the minimum water level data change (L) in the normal drainage drainage alarm of the washing machine, characterized in that it consists of an alarm step 26 for alarming the drainage abnormality through an alarm unit Way.