KR0125953B1 - Rinsing control method of a washing machine - Google Patents

Abstract

After the washing cycle is completed, a microcomputer(10) controls a water-level sensor(16) that checks for water in the washing tub(S10). If no water, the motor(22) starts initiating the spin cycle(S40,S50). When the spin cycle is completed, water is supplied to a water level set by a controlling water-supply driver(24)(S70) and the rinse cycle proceeds while running the regular/reverse motor drive(20)(S80). If water is in the washing tub, the stage is checked(S20). If the stage is after a rinse, the washing water is judged dirty and water is drained(S30) before proceeding to the rinse cycle. If the stage before a rinse is water-supply(S70), drain, or spin, the water is judged clean and a rinse cycle proceeds without draining to save water.

Description

Rinsing administration control method of washing machine

1 is a general block diagram of a washing machine control.

2 is a diagram showing the overall washing process in a typical washing machine.

3 is a flowchart of a rinsing stroke control method of a washing machine according to the present invention.

Explanation of symbols on the main parts of the drawings

10 microprocessor 12 key input unit

14 weight detection unit 16: water level detection unit

18: display unit 20: motor reverse rotation drive

22: motor 24: water supply drive

26: drain driving unit 28: detergent injection unit

The present invention relates to a rinsing stroke control method for a washing machine, and more particularly, to a rinsing stroke control method for a washing machine to save washing water.

1 is a general block diagram of a washing machine control device, the washing machine control device is a microprocessor (10) for controlling the overall operation of the washing machine, and a power supply unit for supplying the electrical equipment for driving the washing machine after converting the input AC power (not shown) ), A key input unit 12 for selecting an operation mode of the washing machine, and a motor reverse rotation driving unit for rotating the motor 22 alternately and reversely through a reduction gear in the washing machine, and rotating the motor 22 at high speed when dewatering. 20), a water supply driving unit 24 for supplying the wash water in the tank, a drain driving unit 26 for draining the washing water during the intermediate process or dehydration of the washing machine, and the selected washing mode or the currently performing washing process. It is composed of a display unit 18 to inform the user, and furthermore, in the case of a fully automatic washing machine, it is additionally provided with various configurations to perform washing automatically. That is, the weight detection unit 14 for detecting the weight of the laundry, the water level detection unit 16 for determining the amount of the wash water to be supplied to the structure according to the detected weight of the laundry, and detects whether the water supplied to the determined water level; The detergent input unit 28 for inputting the amount of detergent determined in accordance with the weight of the laundry to be detected into the washing tank, and the water level detection unit 16 is installed in the washing tank at regular intervals in the laundry introduced into the washing tank. The amount of water is divided into high, medium, low and small amounts.

2 is a diagram showing the entire washing process in a general washing machine, wherein the washing process of the washing machine is largely composed of a washing stroke, a rinsing stroke, and a dehydration stroke. The step of supplying water to the water level corresponding to the weight of the laundry, and when the water supply is completed in the step of washing the laundry while stirring, the rinsing stroke is the step of draining the wash water, and absorbed in the laundry Dehydration step to remove water and residual detergent, the step of resting, and the step of watering and rinsing step of a predetermined number of times (2 times, 3 times) is performed, the dehydration administration It consists of drainage, intermediate dehydration, dehydration, rest and end of dehydration.

As described above, the first stage of the rinsing cycle of the series of washing strokes is a drainage stage, which is determined based on the judgment that the washing water in the washing tank will be cloudy after the washing stroke is completed.

However, the washing water in the washing tank may not be the washing water after washing, that is, the user often opens the door and supplies clean water. At this time, when the rinsing stroke starts, the washing machine unconditionally drains the washing water. As a result, the supply of clean wash water is drained, not only waste of water, but also causing inconvenience in use.

An object of the present invention is to provide a rinsing control method that can reduce the wash water during rinsing.

In order to achieve the above object, the present invention provides a rinsing operation consisting of drainage, intermediate dehydration, dehydration, rest, water supply, and rinsing after washing, determining whether washing water is present in the washing tank at the start of the rinsing stroke, and If there is no washing water in the washing tank in the washing tank determines that the drainage is complete, and if the washing water in the washing tank in the step, the step immediately before the start of the rinsing stroke is any one of the water supply, drainage or dehydration step of the rinsing stroke Determining step and, if the step immediately before the start of the rinsing stroke in the step is not any one of the water supply, drainage or dehydration step of the rinsing stroke and sequentially performing from the draining step of the series of rinsing stroke, In this step, the step immediately before the rinsing stroke starts during the water supply, drainage, or dehydration step during the rinsing stroke. In the case of any one step characterized in that the water is supplied to the set water level during the washing, and rinsing, but rinsing proceeds to a randomly set rinsing frequency.

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

3 is a flow chart for the rinsing stroke control method of the washing machine according to the present invention, in the washing stroke is completed, drainage 30, intermediate dehydration (S40), dehydration (S50), stop (S60), water supply (S70) In the rinsing stroke control method to perform a series of rinsing strokes leading to the step of rinsing (S80), at the start of the rinsing stroke, whether or not the washing water is present in the washing tub is determined and determined (S10), and the washing If no washing water in the washing tank in the non-feeding judging step (S10) to determine that the drainage is completed, performing a series of rinsing stroke from the intermediate dehydration (S40), and washing in the washing tank in the washing or not judging step (S10) If it is possible to rinse in the rinse administration determination step (S20) and the rinse administration determination step (S20) and the rinse administration determination step (S20) to determine whether the step immediately before the rinsing stroke start water supply, drainage or dehydration step Performing a series of rinsing strokes from the draining step 30 of draining the washing water, which is the series of rinsing strokes, when the step immediately preceding the step is not one of water supply, draining or dehydration of the rinsing stroke, and If the step immediately before the start of the rinsing stroke in the rinsing stroke determination step (S20) is any one of water supply, drainage, or dehydration of the rinsing stroke, a series of rinsing points is performed from the water supply (S70) to the water supply level set during the washing. It is to be done in a step.

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

First, when a user inputs a washing operation signal for washing, rinsing, and dehydration, which is a series of washing operations, to the microprocessor 10 through the key input unit 12, the microprocessor 10 displays the display unit 18. In addition to displaying the input key signal, the water supply driving unit 24 is controlled by the input key signal to supply water to the water level determined according to the weight of the laundry detected by the weight sensing unit 14 and detergent input unit ( 28) the detergent is put into the detergent, and when the water supply is completed, the microprocessor 10 controls the motor reverse rotation driving unit 20 while rotating the motor 22 forward and reverse, washing the user arbitrarily set time Proceed and complete the laundry administration.

When the washing stroke is completed, the microprocessor 10 performs a rinsing stroke, the microprocessor 10 goes to the washing water determination step (S10) prior to the start of the rinsing stroke, the water level detection unit 16 The control unit detects whether there is washing water in the washing tank, and determines the detected signal. In this case, when the washing tank contains water at the time of starting the rinsing stroke, the washing stroke is finished during the first washing administration, Second, when the rinsing step of the rinsing operation is finished, or the third stage of use rinsing water can not be supplied through the water supply valve due to the number of stages, the user can arbitrarily open the door to supply water.

Therefore, if it is determined that the washing water is not present in the determination step (S10), if there is no wash water, the microprocessor 10 determines that the contaminated washing water is completely drained, and goes to the intermediate dehydration step (S40). Go to to rotate the motor 22 to a predetermined predetermined number of revolutions to proceed to intermediate dehydration, go to the dehydration step (S50) to control the motor reverse rotation drive unit 20 to proceed with dehydration, the rest is completed when the dehydration is completed After going to step S60 and stopping the motor 22 and stopping, when the stop is completed, go to the water supply step S70 to control the water supply driving unit 24 to supply water to the determined water level during washing, and rinsing step S80. The rinsing is performed while the motor reverse rotation driving unit 20 rotates forward and backward.

On the other hand, if the result of the determination in the washing water-free judging step (S10), if the wash water, the microprocessor 10 goes to the rinsing stroke judging step (S20), the step immediately before the start of the rinsing stroke during the water supply, drainage or dehydration step of the rinsing stroke In this case, it is determined whether one step is performed. In this case, when the step immediately before the start of the rinsing stroke is not one of the water supply, drainage, or dehydration step of the rinsing stroke, the microprocessor 10 performs the first washing stroke. If the washing stroke is ended or the rinsing step is finished in the second rinsing stroke, the water present in the washing tank is determined to be dirty, and the drainage step (S30) for draining the washing water which is a series of rinsing strokes. 26, the dirty washing water is drained and then the intermediate dehydration step (S40), the dehydration step (S50), the rest step (S60) and the water supply step (S70) sequentially. ), Rinsing while performing the rinsing step (S80).

However, when the step immediately before the start of the rinsing stroke is determined as one of water supply, drainage, or dehydration in the rinsing stroke, the microprocessor 10 supplies water due to the third stage of use. When the water is not supplied through the valve and the user arbitrarily opens the door to supply water, that is, it is determined that clean water is supplied to the washing tank, the microprocessor 10 goes to the water supply step (S70) and washes the supplied water. The water level detecting unit 16 detects whether the water is supplied to the determined water level at the time of washing, and if the washing water supplied is not supplied to the determined water level, the water supply driving unit 24 is controlled to supply water and rinse until the determined water level is reached. Go to step (S80) to control the motor reverse rotation drive unit 20 to rinse, but to proceed with a predetermined rinse It is.

As described above, in the rinsing administration control method of the washing machine, the present invention determines whether the washing water is present in the washing tank at the start of the rinsing administration and whether there is turbidity, and if there is clean water before starting the rinsing administration, Proceed with the rinsing, and if there is dirty water before starting the rinse administration to drain the rinse administration by performing the rinse stroke, which can provide convenience for use and prevention of waste of water caused by unconditionally draining the water in the washing tank will be.

Claims (1)

Rinsing stroke to perform a series of rinsing strokes leading to the step of draining (S30), intermediate dehydration (S40), dehydration (S50), stop (S60), water supply (S70), rinsing (S80) in the washing stroke is completed In the control method, when the rinse administration starts, the washing water determination step (S10) for detecting and determining whether there is washing water in the washing tank, and if the washing water in the washing tank in the washing water determination step (S10) determines that the drainage is completed Performing a series of rinsing stroke from the intermediate dehydration (S40), and if the wash water in the washing tank in the washing water-free judging step (S10), the step immediately before the start of the rinsing stroke is during the water supply, drainage or dehydration step of the rinsing stroke The rinsing administration determination step (S20) to determine which one step, and the step immediately before the rinsing administration start in the rinsing administration determination step (S20) of any one of the water supply, drainage or dehydration step of the rinsing stroke If not, the step of performing a series of rinsing stroke from the drainage step (30) for draining the wash water that is the series of rinsing stroke, the step immediately before the rinsing stroke in the rinsing stroke determination step (S20) of the rinsing stroke In the case of any one of water supply, drainage or dehydration step, the washing process of the washing machine, characterized in that the step of performing a series of rinsing dot from the water supply (S70) to the water supply level set during the washing.