KR20080002468A - Method for removing bubble of a drum type washing machine - Google Patents

Abstract

A method of removing the foam from a front-loading washing machine is provided to drain the foam generated during a wash cycle effectively by stopping a motor for ten minutes and operating a fan motor for the same duration of the time and circulating the air inside a drum. A method of removing the foam from a front-loading washing machine during a spin cycle comprises the steps of: stopping an operation of a motor for a predetermined period of time if the presence of the foam is detected(S20,S30); and operating a fan motor for the duration of the predetermined time to rotate a fan and circulating the internal air of a drum(S40).

Description

Method for removing bubble of a drum type washing machine}

1 is a block diagram of a bubble removing device of the drum washing machine according to the present invention.

2 is a flow chart of a method for removing bubbles of the drum washing machine according to the present invention.

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

100: micom

110: bubble detector

120: drain pump

130: drum motor

140: fan motor

150: fan

The present invention relates to a drum washing machine, and more particularly, to a foam washing method of the drum washing machine for removing the foam formed in the drum.

In general, a washing machine is a device for removing contaminants from contaminated laundry through a process such as washing, rinsing, and dehydration according to a set algorithm. It is divided into drum washing machine using directional rotation.

In particular, the drum washing machine is a method of washing by using the friction force between the rotating drum and the laundry by receiving the driving force of the drive motor in the state in which detergent, washing water and laundry are put into the drum, the laundry is less damaged and the laundry is tangled well Knocking and rubbing can have a laundry effect.

In a typical drum washing machine, a tub is installed inside a housing forming an outer shape of the drum washing machine, and a drum is installed inside the tub to install a driving motor for rotating the drum behind the drum. In addition, a drying duct for supplying heated air into the tub, a door that opens and closes to allow laundry to be introduced into the drum, a drain pipe and a drain pump connected to the tub to discharge water discharged from the laundry inside the drum to the outside, And a condensation duct for supplying condensate to remove moisture generated during the drying administration.

In the drum washing machine, a lot of bubbles are generated due to the rising and falling of the laundry in the process of performing the washing stroke. When the foam is generated, the drum rotation is disturbed due to the fluid resistance of the foam and is overloaded.

This is because when the drum rotates during dehydration, the air pressure difference between the discharge part and the water inlet part of the drain pump increases, and when the RPM of the driving motor rises, the air pressure difference increases and further bubbles are not discharged.

Accordingly, various apparatuses and methods for removing bubbles have been proposed. For example, when the rinsing cycle is repeatedly performed, power consumption is high and time consuming, and bubbles are often not discharged. Frequently, only the wash water was discharged while remaining under the drum.

The present invention has been made to solve the above problems, and provides a method for removing the foam of the drum washing machine to stop the motor during dehydration, and to operate the fan for a predetermined set time to remove bubbles smoothly. There is a purpose.

The present invention devised to achieve the above object is as follows. In the drum washing machine foam removing method of the present invention, in the method of removing the foam formed in the laundry during the dehydration operation to discharge the washing water in the drum, if the foam is detected, the drum motor stops driving until a predetermined set time elapses In addition, the fan motor is driven to circulate the air inside the drum.

Here, the set time is characterized in that 10 minutes.

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

1 is a block diagram of a bubble removing device of the drum washing machine according to the present invention.

The foam removing device of the drum washing machine according to an embodiment of the present invention detects the foam inside the drum and outputs a detection signal to the microcomputer (100) 110, the washing water supplied in the tub outside the drum washing machine Overall control of the dewatering pump 120, the drum motor 130 for rotating the drum, the fan motor 140 for rotating the fan 140, and the foam removing device of the drum washing machine according to an embodiment of the present invention It consists of a microcomputer (100).

In particular, the microcomputer 100 discharges the washing water inside the drum to the outside by controlling the drain pump 120 during the dehydration operation, and when the detection signal is input from the foam detection unit 110, the drum motor according to the detection signal The rotation of the drum is stopped by stopping the 130, and the fan 150 is rotated by controlling the fan motor 140 for a preset set time, preferably 10 minutes.

Therefore, the drum motor 130 is stopped for a set time during the dehydration operation so that the drum does not rotate so that the bubbles can be naturally removed, and the fan motor 140 is driven to circulate the air in the drum. This can be removed more smoothly.

A bubble removing method using the bubble removing device according to the embodiment of the present invention will be described in detail with reference to FIG. 2.

2 is a flow chart of a method for removing the foam of the drum washing machine according to the present invention.

In the foam removing method of the drum washing machine according to an embodiment of the present invention, when the dehydration operation is performed (S10), the microcomputer 100 drives the drain pump 120 to discharge the washing water inside the drum.

As such, when the washing water in the drum is discharged, it is determined whether the foam is formed in the drum (S20), which detects the foam formed in the laundry in the drum and the microcomputer detects the foam signal. 100, the microcomputer 110 determines whether the foam inside the drum is formed through the foam detection signal input from the foam detecting unit 110.

If the bubble is not detected at this time, the dehydration stroke is terminated (S60).

On the other hand, if it is determined that the foam is formed, stop the rotation of the drum motor 130 (S30) so that the drum does not rotate to remove the bubbles inside the drum, as well as the fan motor 140 ) To drive (S40) so that the fan 150 rotates.

As such, when the fan 150 rotates, air in the drum circulates, and bubbles are more smoothly removed by the air circulation.

On the other hand, after stopping the driving of the drum motor 130, the microcomputer 100 determines whether the preset set time has elapsed (S50), and when the set time has elapsed, performs the dehydration administration again and repeats the above process. On the other hand, if the set time has not elapsed, the fan motor 140 continues to operate while the rotation of the drum motor 130 is stopped until the set time elapses.

The present invention is not limited to the above-described embodiments and can be carried out in various modifications within the scope of the technical idea of the present invention.

According to the present invention configured as described above, after stopping the drum motor during the dehydration operation, the fan can be smoothly removed by circulating the air in the drum by operating the fan for a preset time.

Claims (2)

In the method of removing the foam formed in the laundry during the dehydration operation to discharge the washing water in the drum, And stopping the driving of the drum motor until a predetermined set time elapses when the foam is detected, and driving a fan motor to circulate the air in the drum. 2. The method of claim 1, wherein the set time is 10 minutes.

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