KR20040095057A - Method for controlling of washing machine with sterilization course - Google Patents

Abstract

PURPOSE: A control method of a washing machine with a sterilization course is provided to secure high sterilization performance for hygiene by sterilizing ticks with an optimal sterilization algorithm and to prevent the reduction of washing efficiency of the washing machine. CONSTITUTION: A control method of a washing machine with a sterilization course is composed of steps for supplying hot water by selecting a sterilization course(S201,S202); making the temperature of the water equal by generating water currents after completing the supply of hot water and accordingly mixing the hot water in a washing tub(S203,S204); and performing a sterilization operation by the hot water mixed to have uniform temperature(S206). The supply amount of the hot water is determined by sensing the amount of the input laundry. The temperature of the hot water is within 35¯40 deg.C to destroy dusts and ticks.

Description

Method for controlling of washing machine with sterilization course

The present invention relates to a washing machine, and more particularly, to a control method of a washing machine having a sterilization course attached to clothes and the like to kill ticks, which are the main cause of asthma and allergies.

In general, a washing machine is a device that performs washing by a complex action, such as the friction between the water flow and the laundry according to the forced flow of the wash water, the emulsification of the detergent, and the impact of the pulsator to the laundry.

Hereinafter, a washing machine according to the related art will be described with reference to the accompanying drawings.

1 is a longitudinal sectional view showing the internal structure of a general washing machine.

In the conventional washing machine, as shown in FIG. 1, the main body 10, the outer tub 20, the washing tub 30, the pulsator 40, and the power of the motor may be driven by the washing tub 30. Or a large power transmission means for transmitting to the pulsator 40.

Here, the outer tub 20 is elastically supported inside the body, the wash water is stored.

In addition, the washing tub 30 is rotatably mounted at an appropriate interval in the outer tub 20, and a plurality of through holes 31 are formed on the outer circumferential surface thereof so as to communicate with the inner space of the outer tub 20.

The pulsator 40 is rotatably provided at the center of the inner bottom surface of the washing tub 30.

The driving force transmission means includes a clutch 50, a driving motor 60, and a belt 70.

Here, the clutch 50 is fixedly mounted on the bottom surface of the outer tub 20 is axially coupled to the pulsator 40 and the washing tub 30, optionally the pulsator 40 or the washing tub 30 Rotate).

In addition, the driving motor 60 is installed at one side of the outer side bottom of the outer tub 20, and the clutch 50 is provided to enable power transmission.

On the other hand, the upper side of the main body 10 is connected to the water supply hose 12 is supplied with the washing water required for washing, the lower portion of the outer tub 20 is connected to the drain hose 14 for draining the washing water.

In addition, the upper part of the main body 10 of the washing machine is provided with a display window (not shown) for displaying a washing course selected by the user and a washing progress and time.

The washing machine configured as described above generally washes, rinses, and dehydrates a predetermined time according to a control signal of the controller (not shown) when a washing mode is selected in a state in which laundry and a predetermined amount of detergent are put into the washing tank 30. It is done automatically.

That is, when the washing mode is selected, the water supply valve 11 installed in the water supply hose 12 is opened, and the wash water to be used for washing is supplied into the washing tank 30 through the water supply hose 11.

At this time, the washing tank is in communication with the inside of the outer tub 20 by a plurality of through-holes 31 formed along the outer circumferential surface thereof, the washing water supplied into the washing tub 30 as described above is the washing tub 30. Through each of the through holes 31 are also introduced into the outer tank (20).

When the wash water is filled in the outer tub 20 and the washing tub 30 by a predetermined process as described above, the water supply valve 11 is closed and no more water is supplied, and the driving is fixed to one side of the outer bottom surface of the outer tub 20. The motor 60 drives the clutch 50 while driving in the forward and reverse directions, and the clutch 50 selectively rotates the washing tub 30 and the pulsator 40 in accordance with each washing stroke.

Accordingly, the laundry in the washing tub 30 is washed by the rotational force of the pulsator 40, the frictional force with the inner circumferential edge of the washing tub 30, and the decomposition force of the detergent.

When the washing operation is completed by the above-described action, the drain valve 13 installed in the drain hose 14 opens under the control signal of the controller (not shown), so that the washing in the outer tub 20 and the washing tub 30 may be performed. The used wash water is drained to the outside of the main body 10 through the drain hose 14.

Subsequently, a rinsing stroke is performed in which a new wash water is supplied into the washing tub 30, and rinsing several times.

At this time, the rinsing efficiency may be controlled by improving the rinsing efficiency by performing dehydration for a short time and re-supply of new wash water together with drainage between each rinse and rinsing.

In addition, after such a rinsing cycle is completely completed, the final dehydration stroke is performed, and during this final dehydrating stroke, the washing tank 30 and the pulsator 40 are naturally drained to the outside. Is rotated at high speed.

Accordingly, due to the centrifugal force due to the high speed rotation of the washing tank 30 and the pulsator 40, the moisture contained in the laundry is released to the outer tank 20 through the through-hole 31 of the washing tank 30.

In this case, since the drain valve 13 installed at the lower portion of the outer tub 20 is opened, the water discharged from the laundry is drained to the outside through the drain hose 14.

The dehydration stroke is performed for a set time, and when the dehydration stroke is completed, all washing processes are completed by completely stopping the operation of the washing machine.

On the other hand, in addition to the washing machine of the above-described method and structure, in recent years, when the washing tank 30 rotates in the opposite direction to the rotation direction of the pulsator, a washing machine of a so-called loop type and centrifugal force generated as the washing machine directly connected to the motor rotates at a high speed. Permeate type washing machines in which washing is performed by water flowing through laundry are also widely used.

However, regardless of the washing method and structure of such a washing machine does not provide an efficient sterilization course to completely kill the tick.

Dust mites are small organisms that exist everywhere and are found on and inside various types of household items and are known to cause asthma and allergies.

In other words, the main cause of asthma is allergy asthma in young children who have mites with weak respiratory dusts with house dust mites living on carpets, sofas, bedspreads, pillows, pillow covers, matrices, plush dolls, and eating human dandruff or dead skin cells. Will cause.

In the prior art, in order to sterilize such mites, an additive which removes mites with a detergent or a method using hot water is used.

However, when the additives are used to remove the mites, some of the mites are removed. However, there is a problem that the laundry clothes are contaminated, partially discolored by the additives, or the additives and the detergent react to reduce the effectiveness of the detergent. It's not efficient.

In addition, there are more than 150 kinds of ticks, and it is practically difficult to remove all the ticks by using an additive acting only on some ticks, and most commonly used hot steam sterilization or hot washing methods are used.

However, in the method of removing ticks using hot water, the optimum water temperature for removing ticks for a long time should be maintained uniformly throughout the washing tank, but the water temperature in the washing tank may not be maintained uniformly depending on the structure of the washing tank and the type of water supply. Complete death is difficult.

As described above, even if a user selects a sterilization course for removing ticks, it is difficult to completely kill the ticks, and in the case of the use of additives, another problem may occur, thereby reducing the reliability of the device performance. have.

The present invention is to solve the above-mentioned problems, the tick sterilization is performed by the optimal sterilization algorithm to exhibit a high sterilization performance in hygiene, and prevent the washing performance of the washing machine in advance. It is an object of the present invention to provide a control method of a washing machine having a sterilization course.

On the other hand, another object of the present invention is to provide a washing machine having a sterilization course to maintain the water temperature in the washing tank uniformly during the sterilization course to enable the complete killing of ticks to prevent unnecessary waste of power and water The purpose is to provide a control method.

1 is a longitudinal sectional view showing the internal structure of a typical washing machine

2 is a flow chart for the control of the washing machine having a sterilization course according to the invention

The control method of the washing machine having a sterilization course according to the present invention for achieving the above object is a step of supplying hot water by the selection of the sterilization course; when the hot water supply is complete to generate a water flow to mix the hot water in the washing tank uniform water temperature Step to have; characterized in that it comprises the step of proceeding sterilization using hot water mixed to have a uniform temperature.

Here, the temperature of the hot water supplied is characterized in that it is set to a temperature that can kill the house dust mite.

The generation of water flow is characterized in that the inflation water flow by the one-way rotation and the inflated water flow by the left and right reverse of the washing blade or the washing tank is characterized in that it proceeds to be repeated.

The left and right inversion cycles of the washing vane or the washing tank for generating the water flow are shorter than the inversion cycle at the time of washing, which is made of 0.1 to 0.2 second intervals.

The step of checking the water temperature in the washing tank during the sterilization step using the mixed hot water is characterized in that it further comprises.

When the tick sterilization is performed according to the sterilization algorithm, the display window of the washing machine is characterized in that the sterilization course is in progress.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of a control method of a washing machine having a sterilization course according to the present invention will be described in detail as follows.

2 is a flow chart for the control of the washing machine having a sterilization course according to the present invention.

Washing machine control method according to the present invention comprises a hot water supply step according to the course selection, a water flow generation step for maintaining a uniform water temperature, and sterilization progress maintenance step.

Here, the hot water supply step is to supply hot water having a temperature of 35 ~ 40 ℃ for tick sterilization is determined by the amount of hot water supply.

And the water flow generation step is to mix the hot water supplied in the washing tank so that the overall water temperature is uniform.

The water temperature is different depending on the structure of the washing tank and the water supply type. Usually, the water temperature is lower as the water supply goes away.

And the sterilization step is a step in which the sterilization of the tick by hot water is carried out in the absence of water flow.

Hereinafter, a control method of a washing machine having a sterilization course according to the present invention will be described in detail.

First, when the sterilization course is selected by the user's selection (S201), the amount of water is determined by the quantity detection to supply hot water into the washing tank. (S202)

At this time, the hot water supplied has a temperature suitable for sterilization of ticks, and preferably maintains a temperature of 35 ~ 40 ℃.

When the hot water supply is completed (S203), water flow is generated to solve that the hot water in the washing tank has a different temperature at each position. (S204)

Here, the generation of water flow repeatedly generates the inflated water and the permeated water, and the repetition cycle for generating the inflated water is rotated in a pulsator or washing tank at a short interval of 0.1 to 0.2 seconds compared to the main washing (2 to 3 second intervals). Let this be reversed left and right.

This flow of water continues for a set time, preferably for 20 minutes.

The water flow generation pattern is repeated with inflated water flow (left-right reversed) → permeated water flow (one-way rotation) → inflated water flow → permeated water flow → for efficient mixing of hot water in the washing tank.

Here, the water flow generation may be performed by the stirring rotation of the pulsator or the stirring rotation of the washing tank, or may be performed by the high speed rotation of the washing tank, or may be performed by a combination of these operations.

Proceed with the hot water mixing process by the generation of water flow as described above (S205) to stop the generation of water flow and proceed to sterilization of the tick without the movement of the washing tank. (S206)

The progress of the sterilization step proceeds for a set time (S207), preferably about 4 hours, including the time required for the water flow generation step.

This sterilization step is not carried out by setting the time, but during the sterilization progress step to increase the sterilization efficiency by checking the water temperature in the washing tank in step 의 of Figure 2 when the water temperature is lower than the appropriate temperature for tick sterilization in the washing tank It is also possible to increase the overall water temperature by discharging some water and supplementing the hot water above a certain temperature by the amount corresponding to the discharge amount.

The other is to increase the temperature of the water in the washing tank by the heating operation.

As such, the step of replenishing hot water or heating may be repeated to maintain the water temperature in the washing tank at a predetermined temperature or more.

When the tick sterilization process is completed, it is also possible to discharge the hot water used for sterilization or to proceed with the washing process after using the hot water.

Here, the time for each step of the sterilization course can be controlled differently by the capacity and quantity of the washing machine.

In the control of the washing machine having the sterilization course according to the present invention, when performing the sterilization course, the display window of the washing machine may indicate that the sterilization course is in progress, and the water temperature and the elapsed time of the washing tank may be displayed.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Such a control method of a washing machine having a sterilization course according to the present invention has the following effects.

First, it is possible to exhibit high sterilization performance in terms of hygiene by the tick sterilization by the optimal sterilization algorithm.

Second, by providing a control method of the washing machine having a sterilization course to prevent the washing performance of the washing machine in advance, has the effect of increasing the reliability of the device.

Third, the water temperature in the washing tank is maintained uniformly during the sterilization course to enable the complete killing of ticks, thereby preventing unnecessary waste of power and water.

Claims (11)

Supplying hot water by selection of sterilization courses; Generating hot water when the hot water supply is completed to mix hot water in the washing tank to have a uniform water temperature; A method of controlling a washing machine having a sterilization course comprising the step of proceeding sterilization using hot water mixed to have a uniform temperature. The control method of a washing machine having a sterilization course according to claim 1, wherein the supply amount of hot water is determined by sensing an amount of laundry put. The control method of the washing machine with a sterilization course of Claim 1 or 2 characterized by the temperature of the hot water supplied is 35 degreeC-40 degreeC which can kill house dust mites. The method according to claim 1, wherein the water flow is generated so that the inflation water due to the left and right inversion of the washing blade or the washing tank and the permeate water flow due to the one-way rotation are repeated. The control method of a washing machine having a sterilization course according to claim 4, wherein the left and right reversal cycles of the washing vane or the washing tank for generating the inflated water flow are shorter than the reversal cycles of the washing process, which is performed at intervals of 0.1 to 0.2 seconds. The method according to claim 1, wherein the step of generating water flow to mix the hot water in the washing tank to have a uniform water temperature is performed for 20 minutes from the completion of the hot water supply. The control method according to claim 1, wherein the sterilization process using the mixed hot water is performed for 4 hours from the completion of hot water supply. The control method according to claim 1, further comprising the step of checking the water temperature in the washing tank during the sterilization process using the mixed hot water. 9. The sterilization course according to claim 8, further comprising discharging a part of the hot water in the washing tank and replenishing the corresponding amount of hot water when the result of checking the water temperature is below a temperature capable of killing the house dust mite. Control method of having a washing machine. 9. The control method according to claim 8, further comprising the step of raising the water temperature in the washing tank by heating when the result of checking the water temperature is below a temperature capable of killing house dust mites. The method according to claim 1, wherein when the sterilization course is performed, the display window of the washing machine indicates that the sterilization course is in progress, and the water temperature and the elapsed time of the washing tank are displayed.