KR20130070814A - Method for controlling boiling-wash in washing machine - Google Patents

Abstract

PURPOSE: A method for controlling boiling-washing in a washing machine is provided to reduce washing time and reduce electricity charge, by conducting boiling-washing with a small amount of warm water. CONSTITUTION: When a small quantity boil course is selected, a control unit supplies washing water of a standard temperature or less preset by a water supply valve, up to a set water level lower than a low water level of a normal washing course(S100,S110). When the washing water is supplied to the set level, a heater is operated by the control unit, the washing water is heated at the standard temperature(S120,S130). When the temperature of the washing water reaches the standard temperature then the control unit conducts a rinsing course and dehydration course in order(S140-S180). [Reference numerals] (AA) Start; (BB) End; (S100) Select a small quantity boil course; (S110) Supply hot water; (S120) Reach a set level?; (S130) Drive a heater; (S140) Does the temperature of washing water reach a reference temperature?; (S150) Stop the heater; (S160) Rinse; (S170) Wet rinse; (S180) Dehydrate

Description

Washing control method of washing machine {METHOD FOR CONTROLLING BOILING-WASH IN WASHING MACHINE}

The present invention relates to a washing method of washing washing of a washing machine, and more particularly, to a washing method of washing washing of a washing machine that performs boil washing using a small amount of washing water for a small amount of laundry in a fully automatic washing machine.

In general, a washing machine is a device that removes dirt from laundry in a washing tank by sequentially performing washing, rinsing, and dehydration strokes through water, detergent, and mechanical force.

Such washing machines tend to be provided with a dedicated course for performing a specific purpose of washing in addition to the general washing function.

For example, the recent drum washing machine is provided with a boil course to heat the laundry to a high temperature of about 95 ° C to boil the laundry.

However, in the case of a fully automatic washing machine, a large amount of washing water used for washing takes a lot of time to heat the washing water, resulting in a long washing time and an increase in the burden of electricity.

In addition, since the upper cover of the automatic washing machine can be opened by the user even during washing, there is a problem in terms of safety, and thus, a boiling course is often not provided in the automatic washing machine.

On the other hand, some fully automatic washing machines have a special course for washing a small amount of laundry, such as underwear or baby clothes, but it only increases the driving time of the motor or the number of rinsing cycles. There is a problem that does not give great satisfaction to the consumer in terms of sterilization power.

Background art of the present invention is disclosed in Republic of Korea Patent Publication No. 10-2010-0047630 'Washing method of washing machine' (2010.05.10).

The present invention was devised to improve the above-mentioned problem, while providing a 'small boil course' that can boil a small amount of laundry such as underwear or baby clothes using a small amount of washing water, while reducing the burden of electricity fee. It is an object of the present invention to provide a washing method of washing laundry of a washing machine that can improve washing performance.

Boil laundry washing method of a washing machine according to an aspect of the present invention comprises the steps of the control unit to determine whether the small boil course selected; If a small amount of boiling course is selected, the control unit controls the water supply valve to supply washing water below a predetermined reference temperature to a set water level lower than a low water level of the general washing course; When the washing water is supplied to the set water level, the control unit drives the heater to heat the washing water to a reference temperature; And when the temperature of the washing water reaches a reference temperature, the control unit sequentially performs a rinsing stroke and a dehydration stroke.

The rinsing stroke in the step of sequentially performing the rinsing stroke and the dehydration stroke of the present invention is characterized in that it comprises a main water rinsing stroke for performing rinsing while supplying water.

According to the present invention, since boil- ing washing is performed using a small amount of hot water for a small amount of laundry, washing performance and sterilization performance can be improved while reducing the washing time and the burden of electricity fee.

In addition, according to the present invention, since a boiled course for a small amount of laundry can be provided even in a fully automatic washing machine, it is possible to increase consumer satisfaction and the commerciality of the fully automatic washing machine.

1 is a block diagram of an apparatus for performing a washing method of washing washing of a washing machine according to an embodiment of the present invention.
2 is a flow chart illustrating an operation flow of the washing method of washing the washing machine according to an embodiment of the present invention.

Hereinafter will be described in detail with reference to the accompanying drawings, the washing method of washing the washing machine according to an embodiment of the present invention. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

In the present specification, the 'small boil course' refers to a washing course that performs boiled laundry on a small amount of laundry such as underwear and baby clothes in a general automatic washing machine, and the 'normal washing course' refers to performing a normal washing in a fully automatic washing machine. It means a washing course.

Hereinafter, a description will be given of the washing method of washing the washing of the washing machine according to an embodiment of the present invention based on the definition of the term.

1 is a block diagram of an apparatus for performing a washing method of washing washing of a washing machine according to an embodiment of the present invention.

As shown in FIG. 1, an apparatus for performing a washing method of washing a washing machine according to an embodiment of the present invention includes a course input unit 10, a temperature sensor 20, a water level sensor 30, and a heater 40. , A water supply valve 50, a drain valve 60, a motor 70, and a controller 80.

The course input unit 10 receives a 'small boil course' selection.

In this case, the course input unit 10 may be provided with a separate button (not shown), a lever (not shown), or a touch panel (not shown) to receive a 'small boil course' from the user.

The temperature sensor 20 detects the washing water temperature in the washing tank (not shown), and the water level sensor 30 detects the washing water level in the washing tank (not shown) and transmits it to the controller 80.

The heater 40 heats the wash water, and its operation is controlled by the controller 80.

The water supply valve 50 and the drain valve 60 are valves for supplying water into the washing tank or discharging water in the washing tank, respectively, and the water supply valve 50 includes a hot water valve for supplying hot water and a cold water valve for supplying cold water. Can be.

The motor 70 rotates the washing tub, and its operation is controlled by the controller 80.

When the 'small boil course' is selected through the course input unit 10, the controller 80 opens the water supply valve 50 to supply the wash water to a preset level, and then drives the heater 40 to operate the inside of the washing tank. Boil washing is performed by heating the wash water to the reference temperature.

The control unit 80 heats a small amount of washing water to perform a boil-washing of a small amount of laundry will be described later.

2 is a flow chart illustrating an operation flow of a washing method for washing a washing machine according to an embodiment of the present invention, with reference to this will be described the specific operation of the present invention.

First, the controller 80 checks whether the 'small boil course' is selected through the course input unit 10 (S100).

If the 'small boil course' is selected, the controller 80 opens the water supply valve 50 to supply the washing water into the washing tank (S110).

At this time, the controller 80 may open the hot water valve to supply hot water into the washing tank.

And, if the temperature of the hot water supplied through the hot water valve exceeds the reference temperature to be described later, the controller 80 opens both the hot water valve and the cold water valve to supply both cold water and hot water into the washing tank below the standard temperature. Hot water can be supplied.

In this way, when hot water is supplied at a suitable temperature not exceeding the reference temperature for washing the boil, the driving time of the heater 40 can be reduced, thereby reducing the burden of the electric fee due to the washing time and driving of the heater 40. Can be reduced.

 Thereafter, the controller 80 checks whether the washing water level of the washing water detected by the water level sensor 30 reaches a preset water level (S120), and returns to step S110 to supply the washing water if the water level does not reach the predetermined water level. Continue to supply the wash water.

That is, the controller 80 controls the water supply valve 50 to supply the washing water of the set water level to the washing tank.

Here, the set water level means the level of wash water required to boil a small amount of laundry, and may be variously selected according to the intention of the designer and the applied product within a range that can efficiently boil the small amount of laundry. Can be.

At this time, the set water level is preferably set to a value lower than the low water level set in the 'normal washing course'.

When the supply of hot water to the set water level is completed, the controller 80 drives the heater 40 to heat the washing water in the washing tank (S130).

Thereafter, the controller 80 checks whether the temperature of the washing water detected by the temperature sensor 20 reaches a preset reference temperature (S140), and if the reference temperature does not reach the reference temperature, drives the heater 40 to heat the washing water. Returning to step S130 to continue to drive the heater 40.

That is, the controller 80 controls the heater 40 to heat the wash water to a reference temperature.

Here, the reference temperature refers to the temperature of the wash water required to boil a small amount of laundry, and may be variously selected according to the intention of the designer and the applied product within a range capable of safely and efficiently boiled laundry. .

At this time, the reference temperature is preferably set lower than the boiling temperature set in the general boiling course of the drum washing machine.

For example, such a reference temperature may be set to a value within the range of 60 ~ 70 ℃.

On the other hand, when the temperature of the wash water reaches the reference temperature, the controller 80 stops the heater 40 (S150), while rinsing while controlling the water supply valve 50, the drain valve 60 and the motor 70 ( S160), the rinse of water (S170) and the dehydration (S180) are performed in sequence.

Specifically, after the control unit 80 stops the heater 40 (S150), by opening the drain valve 60 to discharge the wash water used for boiling, and supplying new wash water through the water supply valve 50 By performing a rinse stroke (S160).

At this time, the control unit 80 may repeat the rinsing stroke two to three times, the last rinsing stroke performs a water rinsing (S170).

Here, the main water rinsing means a rinsing method for obtaining an improved rinsing effect by performing rinsing while supplying water.

Subsequently, when the rinsing stroke and the main water rinsing stroke are finished, the controller 80 controls the motor 70 to terminate the washing after performing the dehydration stroke (S180).

As such, according to the boil-off laundry control method according to the present invention, a small amount of laundry can be boiled using a small amount of hot water, thereby improving washing performance and sterilization performance while reducing the burden of washing time and electricity fee, User safety can be enhanced.

In addition, since the automatic washing machine can provide a boiled course for a small amount of laundry, it is possible to increase consumer satisfaction and the commerciality of the automatic washing machine.

In the present embodiment, the controller 80 controls the water supply valve 50 to supply hot water when the 'small boil course' is selected, but the present invention is not limited thereto. It will also be possible to supply.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, I will understand. Accordingly, the true scope of the present invention should be determined by the following claims.

10: course input unit
20: Temperature sensor
30: water level sensor
40: heater
50: water supply valve
60: drain valve
70: Motor
80: control unit

Claims (2)

Confirming, by the controller, whether a small boil course is selected;
When the small boil course is selected, controlling the water supply valve to supply washing water below a predetermined reference temperature to a predetermined level lower than a low level of a general washing course;
When the wash water is supplied to the set water level, controlling the heater to heat the wash water to the reference temperature; And
If the temperature of the wash water reaches the reference temperature, the washing step washing control method of the washing machine comprising the step of performing the rinsing step and the dehydration step in sequence.
The method of claim 1, wherein in the step of sequentially performing the rinsing stroke and the dehydration stroke
The rinsing stroke is boiled washing control method of the washing machine, characterized in that it comprises a water rinsing stroke to perform the rinsing while supplying water.

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