KR100600721B1 - Washing method of a washer - Google Patents

Abstract

The present invention relates to a washing method of a washing machine in which laundry is washed through a series of washing, rinsing, and dehydration, and in particular, a first step of setting a water level and a washing pattern according to a quantity of laundry, and in the first step A second step in which a washing stroke is performed according to a washing pattern in a state in which the washing water is supplied up to a set water level, a third step of measuring the amount of detergent before the washing stroke is completed in the second step, and measured in the third step Including the fourth step of setting the rinsing pattern according to the amount of detergent and the fifth step of rinsing stroke according to the rinsing pattern set in the fourth step, taking into account the amount of detergent dissolved in the wash water before the washing is completed Implementing an optimal rinse pattern not only improves rinsing performance but also reduces waste, such as water and electrical energy.

Washing machine, inner tank, outer tank, electrode sensor, temperature sensor, conductivity, temperature, hardness, detergent

Description

Washing method of washing machine {Washing method of a washer}             

1 is a side cross-sectional view showing a typical washing machine,

2 is a flowchart illustrating a washing method of a washing machine according to the present invention.

<Explanation of symbols on main parts of the drawings>

4: outer tank 6: inner tank

8: pulsator 10: motor

22: electrode sensor 24: temperature sensor

The present invention relates to a washing method of a washing machine in which laundry is washed through a series of washing, rinsing, and dehydration, and in particular, rinsing performance by implementing an optimal rinsing pattern in consideration of the amount of detergent dissolved in washing water before washing is completed. The present invention relates to a washing method of a washing machine that not only improves energy consumption but also reduces waste such as water and electrical energy.

1 is a side cross-sectional view showing a general washing machine.

In general, the washing machine is installed to hang inside the cabinet (2) forming the exterior as shown in Figure 1, the outer tank (4) in which the wash water is contained, and rotatably installed inside the outer tank (4) and wash water and An inner tub 6 in which laundry is contained and washed, a pulsator 8 rotatably installed on a bottom surface of the inner tub 6 to form a rotational flow in the inner tub 6, and a lower portion of the outer tub 4. It is installed to be connected to the inner tank 6 and the pulsator (8) is configured to include a motor (10) for rotating the inner tank (6) or pulsator (8).

Of course, the water supply valve assembly 12 and the detergent box assembly 14 including a water supply valve (not shown) for supplying the washing water together with the detergent to the outer tank 4 and the inner tank 6 on the cabinet 2. Is installed, the lower one side of the outer tank 4 is installed so that the drain valve assembly 16 including a drain valve (not shown) for draining the outer tank 4 and the wash water of the inner tank.

In particular, an electrode sensor 22 and a temperature sensor 24 are installed at one side of the outer tub 4 to measure the conductivity and temperature of the wash water supplied to the outer tub 4, respectively.

Here, the conductivity of the washing water is measured by the electrode sensor 22 and the temperature of the washing water is measured by the temperature sensor 24 while the washing water is supplied to the outer tub 4 and the detergent is supplied together. The detergent amount of the wash water is calculated according to the conductivity and the temperature of the wash water measured in this way.

At this time, the detergent amount determination table is input in advance so that the detergent amount of the wash water can be calculated according to the conductivity and temperature of the wash water. The detergent amount determination table is a change in the conductivity and temperature of the wash water based on tap water supplied to a home. According to the hardness and detergent amount is shown.

The washing pattern including washing strength, washing time, rinsing time, rinsing frequency, dehydration time, etc. is determined according to the amount of detergent dissolved in the washing water calculated as described above, and then a series of washing, rinsing, and dehydration strokes is performed according to the set washing pattern. Since the washing is made during the washing process can improve the washing and rinsing performance.

However, in the washing method of the washing machine according to the related art, the temperature and conductivity of the washing water are measured once at the initial stage of the washing process to calculate the amount of detergent included in the washing water, and the washing pattern is determined according to the amount of the washing water. Temperature and conductivity are difficult to measure accurately at one time, and the washing environment may change as the washing progresses, so it is difficult to realize an optimal washing pattern, and furthermore, waste of water and electric energy at the same time as washing and rinsing performance decreases. There is this.

The present invention has been made to solve the above problems of the prior art, washing and rinsing performance by implementing the optimal washing pattern or rinsing pattern by measuring the conductivity and temperature of the wash water several times during the washing and rinsing stroke The purpose is to provide a washing method of the washing machine that can improve the.

Washing method of the washing machine according to the present invention for solving the above problems is the first step in which the water level and washing pattern is set according to the quantity of the laundry, and washing in a state where the wash water is supplied to the water level set in the first step A second step in which the washing stroke is performed according to the pattern, a third step in which the amount of detergent is measured before the washing stroke is completed in the second step, and a fourth step in which a rinsing pattern is set according to the amount of detergent measured in the third step And a fifth step of performing a rinsing stroke according to the rinsing pattern set in the fourth step.

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

1 is a side cross-sectional view showing a general washing machine, Figure 2 is a flow chart illustrating a washing method of a washing machine according to the present invention.

Looking at the washing method of the washing machine according to the present invention with reference to Figures 1 and 2, the first step is the hardness of the washing water measured in the pre-washing process at the same time the power of the washing machine is turned on, The first, second and third washing levels and washing patterns are set according to the hardness (see S1 and S2).

In this case, the hardness of the wash water is a value measured before the final rinsing is completed in the pre-washing process, the hardness of the pure wash water without detergent is measured, the hardness of the wash water in the washing machine in the pre-washing process It is stored in a memory built in a control unit (not shown) for controlling the operation, and is loaded at the same time as power is supplied to the washing machine, which is considered to set the first, second, and third washing levels and washing patterns in the current washing process.

Here, the first, second, third washing water level is the water level in order to proceed with the washing in a state in which the washing water is gradually increased in the inner tank (6) and the outer tank (4), the washing pattern is washing strength, Detergent amount, washing time, etc.

Of course, the higher the hardness of the wash water, the more the metal component such as calcium and iron contained in the wash water, so that the washing performance is reduced, the washing pattern is higher washing strength to improve the washing performance, the amount of detergent is increased The washing time is set to be long.

In the second step, the detergent is dissolved in the state where the washing water is supplied to the first set water level set in the first step.

Specifically, the water supply valve is opened according to the washing pattern so that the washing water passes through the detergent box assembly 14 and the washing water is supplied to the inner tank 6 and the outer tank 4 together with the detergent, but the first setting is performed. After the water is supplied to the water level, the pulsator 8 is agitated while washing the laundry while the detergent is dissolved.

In the third step, when the detergent dissolution is performed for a predetermined time in the second step, the amount of detergent dissolved in the wash water is measured (see S4 and S5).

Here, as the pulsator 8 is stirred for a preset time, the conductivity and temperature of the wash water are respectively increased by the electrode sensor 22 and the temperature sensor 24 in a state in which detergent is sufficiently dissolved in the wash water. The amount of detergent dissolved in the wash water is calculated according to the conductivity and temperature of the wash water.

At this time, the amount of detergent dissolved in the wash water is calculated from a detergent amount determination table previously input, the detergent amount determination table is a table showing the amount of detergent dissolved in the wash water according to the conductivity and temperature of the wash water, the hardness of the wash water According to the above, a plurality of detergent amount discrimination tables are input.

Of course, the detergent amount discrimination table is selected in the current washing process in consideration of the hardness of the wash water in which the detergent calculated in the pre-washing process is not dissolved, and the amount of detergent dissolved in the wash water is calculated from the selected detergent amount discrimination table. The amount of detergent dissolved in water can be calculated.

In the fourth step, the second and third set water levels and the washing pattern are reset according to the detergent amount measured in the third step, and washing is performed at the first set water level (see S6 and S7).

At this time, the second, third set water level is reset according to the amount of detergent dissolved in the wash water, and washing patterns including washing strength, washing time, etc. are separately reset at the second, third set water level, and then the first All detergent is dissolved at the set water level and washing is performed while the pulsator 8 or the inner tank 6 is rotated in a state where the detergent concentration in the washing water is high.

In the fifth step, the washing stroke is performed according to the reset washing pattern in the state where the washing water is resupplied to the second set water level reset in the third step, and after the washing stroke is completed on the second setting water, 3 The washing stroke is performed according to the reset washing pattern while the washing water is supplied to the set water level (see S8 and S9).

Of course, the conductivity and temperature of the wash water is measured again before the washing stroke is completed at the second set water level, and thus the amount of detergent dissolved in the wash water is calculated again so that the third set water level and the washing pattern are reset. It may be.

In this case, the washing pattern also includes washing strength, remaining washing time, and the like, as the amount of detergent included in the washing water increases, the washing strength decreases and the remaining washing time is set to decrease.

In the sixth step, the amount of detergent dissolved in the washing water is measured before the washing is completed at the third set water level in the fifth step.

Here, the conductivity and temperature of the wash water are measured by the electrode sensor 22 and the temperature sensor 24 before the washing is completed while the washing is in progress at the third set water level, and the wash water measured as described above. The amount of detergent dissolved in the wash water is calculated from the detergent amount calculation table according to the conductivity and the temperature of.

Of course, even when the washing environment is changed, such as washing the user at the first, second, third set water level, the user adds more detergent, or the number of wash water is changed, the conductivity of the wash water and a predetermined time before the washing stroke is completed. Because the temperature is measured again, the washing environment can be accurately determined by the conductivity and temperature of the wash water.

In the seventh step, the rinsing pattern is set according to the amount of detergent measured in the sixth step, and when the washing process is completed, the rinsing process is performed according to the rinsing pattern (see S11 and S12).

In this case, the rinsing pattern includes a rinsing level, a rinsing time, a rinsing frequency, a dehydration time, and the like, and as the amount of detergent included in the wash water increases, the rinsing level increases, and the rinsing time, the rinsing frequency, and the dehydration time increase. Is set.

When the rinsing pattern is set as described above, when the washing stroke is completed, the drain valve is opened to drain the wash water in which the detergent is dissolved in the inner tank 6 and the outer tank 4, and the water supply valve is opened to open the inner tank 6. ) And rinsing the detergent penetrating the laundry while the pulsator (8) or the inner tank (6) is rotated while fresh wash water is supplied to the outer tank (4), and then the drain valve is opened to wash the detergent rinsed. As the water is drained, the rinsing stroke is performed according to the rinsing pattern.

The rinsing stroke as described above is repeated by the number of rinsing times during the rinsing time of the set rinsing pattern.

In the eighth step, the hardness of the wash water is measured and stored before completion of the last rinsing of the rinsing stroke in the seventh step, and the dehydration stroke is performed when the rinsing stroke is completed (see S13 and S14).

Here, the temperature and conductivity of the wash water in which detergent is not dissolved before the set time before the final rinsing stroke is completed, the temperature of the wash water is measured by the temperature sensor 24 and by the electrode sensor 22 The conductivity of the wash water is measured, and the hardness of the wash water is calculated from the hardness determination table according to the measured temperature and the conductivity of the wash water, and the hardness of the wash water is input to a memory built in the controller.

In this case, the hardness determination table is a table showing the hardness of the wash water in accordance with the conductivity and temperature of the wash water through the experiment in advance, is input to the control unit in advance.

Then, the drain valve is opened in the last rinsing stroke to completely drain the washing water, and then, as the inner tank 6 and the pulsator 8 are rotated at high speed according to the operation of the motor 10, a dewatering stroke is performed.

Washing method of the washing machine according to the present invention configured as described above is the optimal washing pattern in the current washing process by grasping the characteristics of the wash water according to the conductivity and temperature of the wash water measured before the final rinsing stroke is completed in the pre-washing process The washing process is set for a predetermined time, and the washing pattern is reset according to the conductivity and temperature of the washing water measured while the detergent is sufficiently dissolved in the washing water, and the washing water measured before the washing process is completed. Since the washing environment is set according to the conductivity and temperature of the rinsing pattern, the optimal washing pattern and rinsing pattern are set by measuring the conductivity and temperature of the washing water several times even if the washing environment changes as the washing progresses. Therefore, the washing and rinsing performance can be improved as the washing and rinsing cycle proceeds. As well as the further advantage that it can reduce the waste of energy, such as water and electricity.

Claims (14)

A first step of setting a water level and a washing pattern according to the quantity of laundry, A second step of performing a washing stroke according to a washing pattern in a state in which the washing water is supplied to the water supply level set in the first step; A third step of measuring the amount of detergent before the washing operation is completed in the second step; A fourth step of setting a rinsing pattern according to the amount of detergent measured in the third step; Washing method of the washing machine characterized in that it comprises a fifth step of the rinsing stroke is performed according to the rinse pattern set in the fourth step. The method of claim 1, The washing method of the washing machine, characterized in that the water level and the washing pattern in the first step is set in consideration of the hardness of the wash water measured during the last rinsing in the pre-washing process. The method of claim 1, The washing pattern is set in the first step washing method of the washing machine, characterized in that the washing strength, detergent amount, washing time included. The method of claim 1, The second step is a first process in which the amount of detergent is measured while washing is in progress according to the washing pattern set in a state where the wash water is supplied to the water supply level, a second process of resetting the washing pattern according to the amount of detergent, and the reset Washing method of a washing machine comprising a third step of performing a washing stroke in accordance with the washing pattern. The method of claim 4, wherein Washing method of the washing machine, characterized in that the amount of detergent is calculated by measuring the temperature and conductivity of the wash water after the washing time is set in the first process. The method of claim 1, Washing method of a washing machine, characterized in that the first, second, third water supply level is gradually increased in the first step. The method of claim 6, The second step includes a first process of washing in a state where the washing water is supplied to the first water supply level, a second process of washing in a state where the washing water is supplied to the second water supply level, and the third water level Washing method for a washing machine comprising a third process of washing in a state where the wash water is supplied to. The method of claim 7, wherein The washing method of the washing machine, characterized in that the washing process in the first process after the set time proceeds to measure the temperature and conductivity of the wash water to calculate the detergent amount, and the second and third water level and washing pattern is reset according to the detergent amount. . The method of claim 1, The third step comprises a first process of measuring the temperature and conductivity of the wash water, and a second process of calculating the amount of detergent in accordance with the temperature and conductivity measured in the first process. The method of claim 9, Washing method of the washing machine, characterized in that the temperature and conductivity of the wash water is measured before the set time before the washing is completed in the first step. The method of claim 1, The rinsing pattern set in the fourth step includes a rinsing water level, a rinsing time, a rinsing frequency, and a dehydration time. The method of claim 1, The second step of the washing method of the washing machine, characterized in that the washing and rinsing, the dehydration time is displayed so that the user can recognize. The method of claim 1, The third step is a washing method of a washing machine, characterized in that the sensor detection display is turned on or flashing while the detergent amount is detected so that the user can recognize. The method of claim 1, The fifth step is a washing method of the washing machine comprising the step of displaying the remaining rinsing and dehydration time so that the user can recognize.

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