KR19990040902A - Drain filter control method of drum washing machine - Google Patents

Abstract

A method for controlling a drainage filter of a drum washing machine for efficiently performing an operation according to a state check of a drainage filter during washing and rinsing, the method of controlling a drum washing machine having a motor and a drainage filter driven by a control of a controller, Performing a drainage operation during the washing operation by driving the motor, determining whether the drainage filter is blocked according to the time taken during the drainage operation and the initially set drainage time, and cleaning the drainage filter according to whether the filter is blocked Since the step of displaying whether or not, washing or rinsing administration according to the accumulation time of the water can determine the clogging due to the accumulation of foreign matter in the drain filter according to the drainage time of the wash water to inform the user to clean the drain filter Long drainage time due to clogging of the drain filter can be prevented.

Description

Drain filter control method of drum washing machine

The present invention relates to a washing machine, and more particularly, to a drain filter control method of a drum washing machine for efficiently controlling the drainage operation during washing or rinsing by cleaning the drain filter of the drum washing machine.

Generally, in the drum washing machine, as shown in FIG. 1, the tub 3 is supported by a plurality of dampers 2 into the main body 1, and the drum 4 is rotatably provided in the tub 3. It is installed.

In addition, a plurality of lifters 5 are fixed to the inner circumferential surface of the drum 4 in a state of maintaining a predetermined angle so as to lift the laundry, and a detergent container for storing detergent on an upper side of the main body 1. 6) is attached, the detergent container (6) and the tub (3) is configured to be connected to the water supply pipe (7).

In addition, a water supply hose 9 having a water supply valve 8 is connected to the detergent container 6, and a drain hose 11 having a drain valve 10 is connected to a lower portion of the tub 3, and a drain valve 10, a drain filter (not shown) for filtering foreign matter in the wash water to be drained is provided.

And, one side of the drain hose 11 is connected to the sensor hose 13, the water level sensor 12 is installed at the top, the microcomputer (not shown) for controlling the washing and rinsing stroke of the drum washing machine main body (1) It is formed in a certain area inside.

Referring to the operation of the drum washing machine according to the prior art having such a configuration as follows.

First, when the user puts laundry into the drum 4 and selects the start of washing, the water supply valve 8 installed in the water supply hose 9 is opened by the control of the microcomputer, so that the washing water to be used for washing is supplied to the water supply hose 9. Guided into the detergent container (6) and then into the tub (3) through the water supply pipe (7) with the detergent is filled in the tub (3) and drum (4).

At this time, the upper water level sensor 12 of the sensor hose 13 connected to one side of the drain hose 11 detects the water level of the water filled in the tub 3 and sends a signal to the microcomputer when the proper water level is reached. In response to this signal, the water supply valve 8 is closed, and at the same time, the drum driving motor (not shown) is driven so that the drum 4 rotates.

When the drum 4 rotates by this action, water flow occurs and the lifter 5 fixed to the inner circumferential surface of the drum 4 continuously pulls up and drops the laundry in the drum 4, thereby rubbing the laundry. Washing is done by.

On the other hand, when the washing process is completed, since the drain valve 10 installed at the end of the drain hose 11 is opened by the control of the microcomputer, the wash water used for washing is discharged from the tub 3 through the drain hose 11 to the outside. When the wash water in the tub 3 is completely discharged, the rinsing process and the dehydration process are continuously performed, and thus washing of the laundry is completed.

At this time, in the washing and rinsing process, when the washing water in the tub 3 is discharged, the detergent residue or the foreign matter including the washing water is filtered by the drain filter in the drain valve 10 and then discharged to the outside of the main body 1.

The drum washing machine according to the prior art does not know whether the foreign matter accumulated in the drain filter that filters the washing water discharged during washing or rinsing administration may not be removed at an appropriate time, thereby preventing drainage.

In addition, there is a fear that foreign matter accumulated in the drain filter may be decomposed with time.

Accordingly, an object of the present invention is to provide a drain filter control method of a drum washing machine for efficiently performing a drainage operation by informing a user whether foreign matter is accumulated in a drain filter. .

1 is an internal configuration diagram of a typical drum washing machine,

2 is a flow chart for controlling the drain filter of the drum washing machine according to the present invention,

Figure 3 is a graph showing the relationship between the degree of clogging of the drain filter according to the drainage time of the drum washing machine according to the present invention.

Explanation of symbols for main parts of the drawings

1: body 2: damper

3: tub 4: drum

5: lifter 6: detergent container

7: water supply pipe 8: water supply valve

9: water supply hose 10: drain valve

11: drain hose 12: water level sensor

13: sensor hose

In a method of controlling a drain filter of a drum washing machine according to the present invention, the method of controlling a drum washing machine having a motor driven by a control of a controller and a drain filter includes: performing a drainage operation during a washing stroke by driving a motor; The method includes determining whether the drain filter is clogged according to the time taken during operation and the initial set drain time, and displaying whether the drain filter is cleaned according to whether the filter is clogged.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the method for controlling the drain filter of the drum washing machine according to the present invention will be described in detail.

2 is a flow chart for controlling the drain filter of the drum washing machine according to the present invention, Figure 3 is a graph showing the relationship between the degree of clogging of the drain filter according to the drainage time of the drum washing machine according to the present invention.

First, the internal configuration of a drum washing machine for implementing the present invention is the same as that of FIG.

Referring to the drainage administration of the drum washing machine according to the present invention having such a configuration, first set each stroke time according to the course to be performed by the user to start the washing (S100).

Subsequently, when the washing stroke starts, the water supply valve 8 installed in the water supply hose 9 is opened by the control of the microcomputer, passes through the water supply hose 9, and the tub through the water supply pipe 7 together with the detergent of the detergent container 6. 3) It enters and fills the tub 3 and the drum 4.

At this time, the water level sensor 12 detects the water level of the water to be filled in the tub 3 and closes the water supply valve 8 and drives the drum driving motor (not shown) when the proper water level is reached. ) Rotates to perform the washing (S101).

When washing by the rotation of the drum 4 is performed for a predetermined time (t1) (S102), the drain valve 10 installed at the end of the drain hose 11 is opened by the control of the microcomputer, so the wash water used for washing Out of the tub 3 through the drain hose 11 performs a drainage operation discharged to the outside (S103).

Then, when the drainage operation proceeds and the water level S in the tub 3 reaches the airborne level, the discharge operation of the washing water is stopped and the required drainage operation time is measured (S105).

If the drainage time T measured in the above step (S105) is larger than the initially set drainage time (Ts), it is determined that the drainage filter in the drain valve 10 is clogged by foreign matters and thus takes a long drainage time (S106). Inform the user to clean the drain filter (S107).

That is, as shown in Figure 3, the drain filter is initially blocked slowly, and thus does not affect the drainage time. have.

Here, n% is a value that may affect the drainage time due to clogging of the drainage filter due to foreign matter.

By this process, the drum washing machine according to the present invention determines whether the drainage filter is clogged by the drainage time, and then takes the corresponding action to complete the remaining washing administration.

In addition, the drum washing machine according to the present invention measures the drainage time during the rinsing stroke by such a process, and accordingly determines whether the drainage filter accumulates foreign matters to perform a more efficient rinsing stroke.

The drum washing machine according to the present invention may inform the user to clean the drain filter by determining whether the drain filter is clogged according to the accumulation of foreign matters according to the drainage time of the wash water during washing or rinsing administration.

Therefore, the drainage time due to the clogging of the drainage filter due to the accumulation of foreign matters can be prevented from being long, and thus the washing and rinsing efficiency can be improved.

In addition, there is an effect that can prevent odor and contamination due to corruption of foreign matter accumulated in the drain filter.

Claims (1)

In the control method of the drum washing machine having a motor and a drain filter driven by the control of the control unit, Performing a drainage operation during a washing stroke driven by the motor; Determining whether the filter is blocked according to a time required for the drainage operation and an initial set drainage time; And displaying the cleaning of the drain filter according to whether the filter is clogged.