KR20100081216A - Control method of drum type washing machine - Google Patents

Abstract

PURPOSE: A control method of a drum washing machine is provided to perform washing strokes in receiving a washing command by heating water at any point of a time zone in which power rates are inexpensive. CONSTITUTION: A control method of a drum washing machine comprises next steps. If a washing command is received, water is heated to perform washing strokes depending on whether the current time belongs to the preset water heating time zone(S21,22,23). A rinse stroke and a low speed dehydrating stroke are performed(S24). The preset water heating time zone corresponds to when power rates are inexpensive. The information about the power rates every hour is preset. A user can set a water heating time zone as needed.

Description

CONTROL METHOD OF DRUM TYPE WASHING MACHINE}

The present invention relates to a control method of a drum washing machine, and more particularly, to a control method of a drum washing machine in which a washing machine heating time zone can be set in a drum washing machine at an inexpensive time period.

In general, a washing machine is a machine for washing laundry by performing washing, rinsing, and dehydrating strokes according to a predetermined algorithm. The washing machine is classified into a pulsator type, a stirring type, a drum type, and the like according to a washing method.

In particular, drum washing machines are widely used because they have the lowest laundry damage rate and the lowest amount of water used for washing, compared to other types of washing machines.

The drum washing machine basically performs a washing operation after heating the supplied wash water in performing a washing stroke, and consumes a lot of power according to the washing water heating.

The above-described technology is described for understanding the background of the present invention, and does not mean a conventional technology well known in the art.

The present invention is to control the washing machine heating time in the drum washing machine to set the time when the power bill is low, when the washing command is input, the control method of the drum washing machine to heat the washing water at the low power time to perform the washing administration It aims to provide.

The configuration of the present invention, which is invented to achieve the above-described object, is as follows.

When the washing instruction is input, the first step of heating the washing water according to whether or not the current time is a predetermined washing water heating allowance time period, characterized in that it comprises a first step of performing a washing administration.

The washing water heating allowed time zone is a power rate discount time zone, and information on power costs for each time zone may be set in advance, or the user may set a desired time zone.

After the first step, characterized in that it further comprises a second step of performing the rinse stroke and low-speed dehydration stroke.

After the second step, the method further comprises a third step of performing a fast dehydration stroke according to whether the current time is a predetermined fast dehydration allowed time zone.

The high speed dehydration allowed time zone may be set to a time zone desired by the user.

According to the present invention configured as described above, the washing operation is performed by heating the wash water at a time when the power rate is low, and the high speed dewatering stroke with a high noise can be performed at the desired time period, thereby improving the user's convenience. .

Hereinafter, the present invention will be described in more detail with reference to Examples. These embodiments are only for illustrating the present invention, and the scope of rights of the present invention is not limited by these embodiments.

1 is a block diagram of a control apparatus of a drum washing machine according to the present embodiment.

Referring to FIG. 1, the control apparatus of the drum washing machine according to the present embodiment includes a key input unit 10, a control unit 20, a memory unit 30, a load driving unit 40, and a display unit 50.

The key input unit 10 inputs various key signals according to a user's key operation, and includes a key for setting a washing water heating allowable time zone and a high speed dewatering allowable time zone.

The controller 20 generally controls the control apparatus of the drum washing machine. When the washing water heating allowable time period or the fast dehydration allowable time period is set by the user's key operation, the controller 20 stores the control unit 20 in the memory unit 30. When the washing instruction is input, the washing water heating of the washing administration is performed at a predetermined washing water heating allowable time period, and then the heel treatment and the low speed dehydration stroke are performed. Then, the high speed dehydration stroke is performed in a preset high speed dehydration allowable time zone.

The memory unit 30 stores various programs required for the operation of the drum washing machine.

Each load (not shown) according to the amount and weight of the laundry according to the user's washing instruction, the type of cloth, for example, a drum motor for rotating the drum, a water supply valve and a drain valve for supplying or draining the washing water into the drum; Drainage motor, Drying heater to heat air, Blowing fan to supply air heated by drying heater to drum, Detergent supply and shutoff valve to supply detergent, Detection sensor to detect temperature inside drum, Humidity inside drum Humidity sensor for detecting the weight, the weight sensor for detecting the weight of the laundry, the eccentric amount measuring unit for measuring the amount of eccentric laundry stores data necessary for operations such as washing, drying and sterilization.

Then, the memory unit 30 stores the washing water heating allowance time zone of the washing administration and the allowable time zone of the fast dewatering administration so that the respective administrations are performed in the corresponding time zone. The washing water heating allowable time period may be set by the user through the key input unit 10 as a washing water heating allowable time period, or power cost information for each time zone may be set in advance. The allowable time zone for the fast dewatering stroke can be set to a user's desired time zone.

The load driver 40 drives each load in accordance with a control signal of the controller 20 to perform each stroke. Various loads required for performing each stroke of the drum washing machine, for example, a drum for rotating the drum Water supply valve for supplying or draining the washing water in the motor and drum, drain valve and drain motor, drying heater for heating air, blower fan for supplying air heated by the drying heater, and detergent supply for detergent And a shut-off valve, a sensor for detecting the temperature inside the drum, a humidity sensor for detecting the humidity inside the drum, a weight sensor for detecting the weight of the laundry, an eccentric amount measuring unit for measuring the amount of eccentricity, and each of the drum washing machines. To drive the load. Here, the load will not be limited to the above-described embodiments and will generally include various loads required for the operation of the drum washing machine.

The display unit 50 displays an operation state and a key input of the current drum washing machine, and is generally installed on the front panel of the drum washing machine. The display unit 50 displays the operation of the current drum washing machine according to the control signal of the control unit 20.

2 is a flowchart of a control method of a drum washing machine according to the present embodiment.

Referring to FIG. 2, in the control method of the drum washing machine according to the present embodiment, when a washing instruction is first input, it is determined whether the current time is a preset washing water heating allowable time (S21).

At this time, if the current time is the washing water heating allowance time is set to perform the washing operation by heating the washing water (S22) (S23). Here, the washing water heating allowance time zone is a power rate discount time zone, and information on power cost for each time zone may be set in advance, or a time zone desired by a user. As such, the washing water heating of the laundry administration, which consumes a lot of power, is performed at a time when the electricity rate is discounted, thereby reducing power costs.

Subsequently, when the washing stroke is completed, the row washing stroke and the low speed dehydration stroke are performed (S24). In most cases, the electricity rate discount time is night, so if you proceed with high speed dehydration during this time, it may cause noise and damage to the surroundings. Therefore, the intermediate dehydration that proceeds between the rinsing strokes proceeds at a low speed (for example, 300 rpm), and the operation is stopped at the time point before the high-speed dehydration stroke.

When the low speed dehydration stroke is completed, it is determined whether the current time is a preset high speed dehydration allowable time zone (S25).

At this time, if the current time is a high speed dehydration allowable time zone performs a high speed dehydration stroke (S26). Here, the high speed dehydration allowable time zone may be set to a time zone desired by the user. That is, the high speed dehydration stroke (eg 800 rpm) is delayed until it is set separately or reaches the time set by the consumer. At this time, since the total operation time is relatively long, it will be good to notify the user that the washing is completed by sounding an alarm when the washing is completed.

As described above, the present invention uses the washing water heating part of the washing administration that consumes a lot of power, and the electricity is consumed at a low power rate discount time, and the final dehydrating stroke (high speed dehydrating stroke) with high noise is used in the morning. Can improve the benefits.

Although the present invention has been described with reference to the embodiments shown in the drawings, it is merely exemplary and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims.

1 is a block diagram of a control apparatus of a drum washing machine according to the present embodiment.

2 is a flowchart of a control method of a drum washing machine according to the present embodiment.

3 is a graph showing the washing water heating time according to the washing water temperature according to the present embodiment.

<Description of the symbols for the main parts of the drawings>

10: temperature sensor 20: control unit

30: memory unit 40: heater driving unit

50: display unit

Claims (5)

And if the washing instruction is input, heating the washing water according to whether or not the current time is a preset washing water heating allowance time period to perform a washing operation. According to claim 1, wherein the washing water heating allowed time zone The control method of the drum washing machine, characterized in that the information on the power cost for each time zone is set in advance, or the user can set the desired time zone. The method of claim 1, And a second step of performing a rinsing stroke and a low speed dehydration stroke after the first step. The method of claim 3, wherein And a third step of performing a high speed dehydration stroke according to whether the current time is a preset high speed dehydration allowable time period after the second step. The method of claim 4, wherein the high speed dehydration allowed time zone The control method of the drum washing machine, characterized in that the user can set the desired time zone.

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