KR101636075B1 - Detergent input apparatus for drum type washing machine and control method thereof - Google Patents

Abstract

The present invention relates to a drum washing machine, and more particularly, to a detergent dispensing apparatus for a drum washing machine capable of storing a large amount of detergent and selectively supplying a kind of detergent according to a user's taste and a control method thereof.

The present invention relates to a storage device comprising: a storage block having a storage portion for storing a liquid additive and a storage portion for storing powdered detergent; A pump provided in the storage block and communicating with the detergent container to supply a liquid additive; A selection key for determining the type of additive supplied to the tub; And a control unit for determining whether the pump is driven and whether or not the wash water is supplied to the storage unit according to whether the selection key is operated or not.

Washing machine, drum washing machine, detergent, powder detergent, liquid additive

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a detergent dispensing apparatus for a drum type washing machine,

The present invention relates to a drum washing machine, and more particularly, to a detergent dispensing apparatus for a drum washing machine capable of storing a large amount of detergent and selectively supplying a kind of detergent according to a user's taste and a control method thereof.

A general drum washing machine includes a cabinet, a tub installed in the cabinet to wash the washing water, a drum rotatably installed inside the tub, a drum accommodated in the tub, a driving device installed on the tub and connected to the drum to rotate the drum, A water supply device connected to the tub for supplying washing water and a drain device extending from the tub to the outside of the cabinet to allow the wash water to be drained to the outside of the cabinet.

Here, the water supply device is provided with a water supply pipe connected to the tub inserted from the outside of the cabinet, and a detergent container accommodating the detergent is installed at one side of the water supply pipe.

The detergent includes a first storage portion for storing the detergent for the main washing, a first storage portion for storing the detergent for preliminary washing performed prior to the main washing, A third storage section for desiccating the softening agent is formed and wash water is supplied to each of the storage boxes at intervals of time.

Since the drum washing machine according to the related art has a size such that the space of the receiving portion formed in the detergent can be filled with the detergent required for performing the washing operation once, the user must input the detergent every time the washing operation is performed .

The drum type washing machine according to the related art has a disadvantage in that it is not possible to change the type of the detergent according to the user's taste since either the detergent box for powder detergent or the detergent box for liquid detergent is installed.

Therefore, there is a need for improvement.

The present invention relates to a detergent dispensing device for a drum type washing machine capable of easily supplying a detergent required for a single washing operation when the detergent is stored to such an extent that a plurality of times of washing operation can be performed, The present invention has been made in view of the above problems.

It is another object of the present invention to provide a detergent dispensing apparatus for a drum washing machine which can select and input a kind of detergent according to a user's taste and a control method thereof.

According to an aspect of the present invention, there is provided a storage device comprising: a storage block having a storage part storing a liquid additive and a storage part storing powdered detergent; A pump provided in the storage block and communicating with the detergent container to supply a liquid additive; A selection key for determining the type of additive supplied to the tub; And a control unit for determining whether the pump is driven and whether or not the wash water is supplied to the storage unit according to whether the selection key is operated or not.

The present invention also relates to a storage device comprising: a storage block having a storage portion for storing a liquid additive and a storage portion for storing powdered detergent; A pump provided in the storage block and communicating with the detergent container to supply a liquid additive; A sensor provided in the storage unit for sensing whether powdered detergent is input; And a controller for determining whether the pump is driven and whether the wash water is supplied to the receiver according to a signal transmitted from the sensor.

The storage block of the present invention may further comprise: a first storage unit for storing the liquid detergent; A second storage section for storing the fabric softening agent; A first storage portion for storing the powdery detergent for preliminary washing; And a second accommodating portion for accommodating the laundry detergent for washing laundry.

According to another aspect of the present invention, there is provided a washing machine comprising: a determining step of determining a type of a washing additive to be supplied to a tub according to whether or not a selection key is operated; And a driving step of supplying a liquid detergent stored in a storage portion of the storage block to the tub by driving a pump installed in the storage block when the liquid additive is selected, to provide.

In addition, when the powder detergent is selected in the determining step of the present invention, the washing water is supplied to the storage portion of the storage block and the washing water and the powder detergent are supplied to the tub, A control method of a charging device is provided.

According to another aspect of the present invention, there is provided a method of controlling a washing machine, the method comprising: determining whether powdered detergent is input according to a signal transmitted from a sensor provided in a storage unit of a storage block; And a water supplying step of supplying washing water and powder detergent to the tub through the washing water passing through the receiving part when the powder detergent is input.

The method may further include driving the pump installed in the storage block to supply the liquid detergent stored in the storage block of the storage block to the tub when the powder detergent is not detected in the determining step of the present invention A method of controlling a detergent dispensing apparatus for a drum washing machine is provided.

The detergent dispensing apparatus for a drum type washing machine according to the present invention includes a detergent container for discharging a large amount of detergent and a pump for extracting detergent from the detergent container to supply the detergent, It is not necessary to provide a separate sensor for measuring the amount of the detergent to be introduced into the tub, so that it is possible to reduce the time and cost of manufacturing the dispensing apparatus and to control the amount of the detergent accurately.

In addition, the detergent dispensing apparatus for a drum type washing machine according to the present invention includes a storage unit for storing a powder detergent, and a selection key for determining whether or not the washing water is supplied to the storage unit is provided, So that there is an advantage that the convenience of the user can be improved.

In addition, the method of controlling a detergent dispensing apparatus for a drum type washing machine according to the present invention is provided with a step of selecting a type of detergent, so that a detergent suited to a user's taste can be input.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of a detergent dispensing apparatus for a drum type washing machine and a control method thereof according to the present invention will be described with reference to the accompanying drawings.

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, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

2 is a perspective view illustrating a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention, and FIG. 3 is a perspective view illustrating the detergent dispensing apparatus according to an embodiment of the present invention. 1 is a plan view showing a detergent dispensing apparatus for a drum washing machine according to an embodiment of the present invention.

FIG. 4 is an exploded perspective view of a detergent dispenser for a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention, FIG. 5 is a perspective view illustrating a detergent dispenser mounting structure of a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention. 6 is a cross-sectional view illustrating a detergent container mounting structure of a detergent dispensing apparatus for a drum type washing machine according to an exemplary embodiment of the present invention, and FIG. 7 is a sectional view illustrating a detergent dispensing apparatus for a drum type washing machine according to an exemplary embodiment of the present invention, Is an exploded perspective view showing the pump of FIG.

1 to 7, a detergent dispensing apparatus 100 for a drum washing machine according to an embodiment of the present invention includes storage units 22 and 24 for storing liquid additives, a storage unit 70 for storing powder detergent, A pump 50 that is provided in the storage block 20 and communicates with the storage portions 22 and 24 to supply the liquid additive, A control unit 90 for determining whether the pump 50 is driven and whether or not the storage unit 70 is supplied with wash water depending on whether the selection key 80 is operated or not, .

The user selects the type of detergent before storing the laundry and starting the washing operation. When the user selects the liquid detergent by operating the selection key 80 provided on the outer wall of the cabinet 10 and starts the washing operation, The pump 50 is driven to supply the liquid detergent stored in the storing part 22 to the tub.

When the washing operation is started after the user selects the powder detergent, since the washing water is supplied to the tub through the housing part 70 in a state in which the pump 50 is not driven, the powder detergent put in the housing part 70, Respectively.

The storage block 20 includes a first storage portion 22 for storing the liquid detergent, a second storage portion 24 for storing the fabric softener, a first storage portion 72 for storing the laundry detergent for preliminary washing, And a second storage portion 74 in which the present washing powder detergent is housed.

A first detergent container 32 in which a liquid detergent is stored is detachably installed in the first storing part 22 and a second detergent container 34 in which a fabric softener is stored is detachably installed in the second storing part 24 The liquid detergent or the fabric softening agent can be easily put into the detergent container 30 and the detergent container 30 can be easily cleaned.

Here, the detergent container 30 is sized such that the amount of the liquid additive capable of performing a plurality of washing operations is desiccated. Since the time during which the pump 50 is driven is controlled by the controller 90, During the operation, the driving time of the pump 50 is adjusted so that the amount of the liquid additive required for one washing operation is supplied to the tub.

Thereby, the user can perform a plurality of washing operations without adding additional liquid additive after a large amount of liquid additives are added.

Since the detergent container 30 is provided in the storing part 22 and 24 and the detergent container 30 so that the detergent container 30 is inserted into the storing parts 22 and 24 and then inserted again, The liquid additive is prevented from being lost due to the gap between the discharge port 31b of the detergent container 30 and the storage part 22 or 24 and the discharge port 31b is opened when the detergent container 30 is inserted again. So that the detergent container 30 and the pump 50 are communicated with each other.

Since the discharge port 31b of the detergent container 30 is opened after the interval between the discharge port 31b and the storage sections 22 and 24 is sealed, the liquid additive discharged through the discharge port 31b is discharged to the detergent container 30 And is prevented from being lost at intervals between the storage portions 22,

The coupling portion 60 is formed in the storage portion 22 and 24 and has an engagement groove portion 62 (see FIG. 2) having an inclined portion 64 and a coupling groove portion 62 formed in the detergent container 30 and inserted into the coupling groove portion 62 And a projection 66 (see Fig. 5).

The coupling groove portion 62 is formed in the inner wall of the storage portions 22 and 24 so as to be long in the vertical direction so that when the detergent container 30 is inserted into the storage portions 22 and 24, The detergent container 30 is inserted into the storage portions 22 and 24 while the protrusions 66 are slid along the engagement groove portions 62. [

Since the inclined portion 64 is formed at the inner end portion of the engaging groove portion 62 to be bent in one direction and tilted in the downward direction, the protrusion 66, which is vertically lowered along the engaging groove portion 62, The protrusions 66 are lowered while being moved laterally along the circumferential surfaces of the storage portions 22 and 24.

As described above, when the protrusion 66 formed on one side of the circumferential surface of the detergent container 30 rotates and descends in the lateral direction, the detergent container 30 also rotates and descends.

Since the sealing member 35b is provided by the bracket 35 to be described later in the hole 21 of the storage part 22 and 24 into which the discharge port 31b is inserted, 24, the discharge port 31b of the detergent container 30 is inserted into the hole 21 of the storage part 22, 24 and the valve cap 39 of the valve 33 to be described later is inserted into the hole 21b of the discharge port 31b The sealing member 35b is brought into close contact with the circumferential surface of the valve cap 39. As shown in Fig.

Therefore, it is possible to suppress the loss of the liquid additive at the interval between the valve cap 39 and the storage portions 22, 24 in a state where the detergent container 30 is seated in the storage portions 22, 24.

Since the interval between the valve cap 39 and the storage portions 22 and 24 is sealed before the discharge port 31b of the detergent container 30 is opened, the liquid additive is discharged at the moment when the discharge port 31b of the detergent container 30 is opened It is possible to inhibit the loss.

A valve 33 is provided in the discharge port 31b and a bracket 35 for opening the valve 33 is provided in the storage sections 22 and 24 so that the detergent container 30 is seated on the storage sections 22 and 24 The bracket 35 opens the valve 33 and the discharge port 31b of the detergent container 30 is opened.

Since the bracket 35 is in communication with the pump 50, when the discharge port 31b of the detergent container 30 is opened, the liquid additive discharged from the detergent container 30 passes through the bracket 35, ≪ / RTI >

The valve 33 is provided with a movable shaft 37 slidably provided in the discharge port 31b and provided with an opening and closing member 37a for opening and closing the discharge port 31b and a discharge port 31b provided between the movable shaft 37 and the discharge port 31b. And a valve cap 39 accommodated in the elastic member 38 and coupled to the discharge port 31b.

Since the plurality of pressing protrusions 37b are formed at the outer end of the moving shaft 37, the pressing shaft 37b presses the elastic member 38 while pressing the moving shaft 37. Accordingly, And the elastic member 38 is compressed by the engagement protrusion 31d formed in the discharge port 31b.

The opening member 37a is brought into close contact with the inner end of the discharge port 31b to close the discharge port 31b when the movable member 37 is kept pressed by the elastic member 38 to the outside of the discharge port 31b, When the insertion hole 31b is inserted again into the hole 21, the movable shaft 37 is pressed and slides inside the discharge port 31b.

At this time, a gap is formed between the opening and closing member 37a and the discharge port 31b to open the discharge port 31b, so that the supply of the liquid additive is started.

The bracket 35 has a hollow shaft 35a coupled to the hole 21 of the storage part 22 and 24 opposed to the discharge port 31b and pressing the pump shaft 37, The discharge port 31b is inserted into the hole 21 and the discharge port 31b is inserted into the discharge port 31b of the discharge port 31b, The sealing member 35b is adhered to the outer wall of the circumferential surface of the valve seat 39 so that the liquid additive is prevented from being lost due to the gap between the valve cap 39 and the reservoir 22,

When the user rotates the detergent container 30 and then inserts the detergent container 30 into the storage sections 22 and 24 again, the hollow shaft 35a pushes the moving shaft 37 to the inside of the discharge port 31b, A gap is formed between the discharge port 31b and the discharge port 31b.

A sensing unit 75 for sensing the level of the detergent container 30 is installed in the flow path between the detergent container 30 and the pump 50. The sensing unit 75 senses the level of the inside of the detergent container 30, A separate sensor provided in the detergent container 30 is not required. Therefore, the detergent container 30 can be easily manufactured and the mounting structure of the detergent container 30 can be simplified.

The sensing unit 75 includes a sensing pipe 77 provided in the storage block 20 so as to communicate with the detergent container 30 and communicating with the pump 50 and a water level sensor 79 provided in the sensing pipe 77 .

The sensing pipe 77 is elongated in the vertical direction and one of the two hole portions formed at the lower end is connected to the bracket 35 and the other hole is connected to the pump 50.

The detergent container 30 is opened by the bracket 35 and the liquid additive supplied from the detergent container 30 passes through the bracket 35 to the sensing pipe 77, So that the level of the inside of the sensing pipe 77 can be detected by the level sensor 79.

Since the liquid level of the liquid additive stored in the detergent container 30 is lower than the predetermined level, the signal is sent out by the output unit, so that the user can perform the supplement operation of the liquid additive It can be done at a proper time.

Here, the water level sensor 79 and the output unit can be easily implemented by those skilled in the art who are aware of the technical structure of the present invention, so that specific drawings and explanations thereof will be omitted.

The first pump 52 is installed on one side of the first storage unit 22 and the second pump 54 is installed on the side of the second storage unit 24 so that when the first pump 52 is driven, 32 are supplied to the tub, and when the second pump 54 is driven, the fabric softener desiccated in the second detergent container 34 is supplied to the tub.

The pump 50 includes a main body 53 on which a motor 51 is installed, a cover 57 which is formed with a suction port 57a and a discharge port 57b through which the liquid additive enters and exits and is coupled to the main body 53, The liquid additive is provided in the suction port (57a) and the discharge port (57b) so that the liquid additive flows in one direction. The piston (55) is eccentrically connected to the rotating shaft of the main body (Not shown).

When the washing operation is started after the liquid detergent is selected, power is applied to the motor 51 so that the rotation axis of the motor 51 rotates. Thus, the piston 55 connected by the plurality of links 51a is moved inwardly And is linearly moved outward.

At this time, the pressure of the closed space formed by the main body 53 and the cover 57 is variable. When the piston 55 is inserted into the main body 53, the pressure in the closed space is lowered, When the piston 55 protrudes to the outside of the main body 53, the introduced liquid additive is discharged to the tub side through the discharge port 57b while the pressure of the closed space is increased.

The suction port 57a and the discharge port 57b are respectively provided with a check valve 59 to prevent the liquid additive from flowing backward so that the liquid additive flows only in the tub direction from the detergent container 30.

A distribution block 76 for selectively supplying wash water to the respective storage portions 70 at predetermined intervals is provided at the upper ends of the first storage portion 72 and the second storage portion 74, The powdered detergent contained in the storage portion 70 is supplied to the tub together with the washing water.

A control method of the detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention will now be described.

FIG. 8 is a block diagram illustrating a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention, and FIG. 9 is a flowchart illustrating a method for controlling a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention.

1 to 9, a method of controlling a detergent dispensing apparatus 100 for a drum washing machine according to an embodiment of the present invention determines a type of a washing additive supplied to a tub according to operation of the selection key 80 The liquid detergent stored in the storage sections 22 and 24 of the storage block 20 is supplied to the turbine by driving the pump 50 installed in the storage block 20 And a driving step S24.

The determination step S10 includes a method of selecting a type of detergent in accordance with whether a selection key 80 is installed and operated on the selection key 80 and a method in which two selection keys 80 are provided, There is a method of operating the selection key 80 of the display device 100. Here, the former method will be described.

Further, the latter method can be easily carried out by a person skilled in the art recognizing the technical constitution of the present invention, so detailed drawings and explanations will be omitted.

When the powder detergent is selected in the above-described method (S10), the valve of the water supply device 12 is driven and the water supply step S22 for supplying the wash water to the distribution block 76 is performed, and the distribution block 76 The washing water is firstly supplied to the first storage part 72 at a time interval according to the direction of the washing water supplied to the second storage part 74, .

The washing water supplied to the first storage portion 72 and the second storage portion 74 is supplied to the tub together with the powder detergent to perform the washing operation.

If the liquid detergent is selected in the determination step S10, the first pump 52 is driven a plurality of times at a time interval to perform preliminary washing and main washing, and the second pump 54 is driven while the rinsing operation is proceeding The fabric softener is supplied to the tub.

At this time, since the driving time of the pump 50 is controlled by the control unit 90, the amount of the liquid detergent and the fabric softening agent required for one washing operation is supplied and the liquid detergent 30 is dewatered, The washing operation can be performed.

The liquid level of the liquid additive contained in the detergent container 30 is lowered to a set value or lower. Therefore, when the level of the detergent container 30 is sensed by the sensing unit 75, A signal is transmitted.

The user removes the detergent container 30 from the storage portions 22 and 24 and opens the stopper 31c provided at the inlet port 31a to replenish the liquid additive and then connect the detergent container 30 to the storage portion 22 24, the discharge port 31b is inserted into the hole 21 of the storage part 22, 24, and the sealing member 35b is brought into close contact with the outer wall of the peripheral surface of the valve cap 39. [

Thus, since the gap between the discharge port 31b and the storage sections 22 and 24 is sealed before the discharge port 31b of the detergent container 30 is opened, the liquid additive is discharged from the discharge port 31b It is possible to suppress the loss of the space between the storage sections 22 and 24.

Thereafter, when the user rotates the detergent container 30, the protrusion 66 slides along the inclined portion 64 and the detergent container 30 is lowered. Therefore, the hollow shaft 35a presses the movable shaft 37, A gap is generated between the member 37a and the discharge port 31b.

As described above, when the discharge port 31b is opened, the liquid additive supplied from the detergent container 30 passes through the bracket 35 and the sensing pipe 77 is filled with a part of the liquid additive.

As described above, when the user operates the selection key 80 to determine the supply of the liquid additive after the detachment of the detergent container 30 is completed, the pump 50 is driven to supply the liquid additive.

The detergent is stored in such a manner that a plurality of times of washing operation can be performed by the above technical construction and control method and the amount of detergent required for a single washing operation can be easily supplied when the washing operation is performed, It is possible to provide a detergent dispensing apparatus for a drum washing machine and a control method thereof, which can select and input the kind of detergent according to the user's taste.

10 is a block diagram showing a detergent dispensing apparatus for a drum type washing machine according to another embodiment of the present invention.

Referring to FIGS. 1 to 7, 9 and 10, a detergent dispensing apparatus 100 for a drum washing machine according to another embodiment of the present invention includes storage sections 22 and 24 for storing liquid additives, A pump 50 that is provided in the storage block 20 and communicates with the detergent container 30 to supply the liquid additive to the storage block 20; A controller 180 for determining whether the pump 50 is driven and whether or not to supply the wash water to the storage unit 70 according to a signal transmitted from the sensor 180, ).

Thus, when the powder detergent is applied to the storage portion 70 before the user starts the washing operation, the powder detergent is sensed by the sensor 180, and when the user starts the washing operation, the driving of the pump 50 does not proceed The washing water is supplied to the storage portion 70 and the powdered detergent and the washing water are supplied to the tub to perform the washing operation.

On the contrary, if the powder detergent is not inserted before the user starts the washing operation, the powder detergent sensed by the sensor 180 is not present, so that the pump 50 is driven in response to the signal from the control unit 90, And the liquid detergent is supplied step by step at intervals of time to carry out the preliminary washing and main washing, and the fabric softening agent is supplied during the rinsing operation.

Here, the sensor 180 may be provided with various sensors such as an infrared sensor, a weight sensor, and the like, and the technical structure of the present invention can be easily changed by those skilled in the art. .

In addition, the control method of the detergent dispensing apparatus for a drum type washing machine according to another embodiment of the present invention is different from the control method according to the embodiment in the method of determining the type of detergent in the determining step (S10) The drive step S24 and the water supply step S22 which are performed after the type is determined are the same, so that a detailed flowchart and description will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

The detergent dispensing apparatus for a drum washing machine has been described as an example. However, the detergent dispensing apparatus and its control method of the present invention can also be applied to products other than the detergent dispensing apparatus for a drum washing machine.

Accordingly, the true scope of the present invention should be determined by the following claims.

1 is a perspective view illustrating a drum washing machine equipped with a detergent dispensing apparatus according to an embodiment of the present invention.

2 is a perspective view illustrating a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention.

3 is a plan view showing a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention.

4 is an exploded perspective view illustrating a detergent container of a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention.

5 is an exploded cross-sectional view illustrating a detergent container mounting structure of a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention.

6 is a cross-sectional view illustrating a detergent container mounting structure of a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention.

7 is an exploded perspective view of a pump of a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention.

8 is a block diagram showing a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention.

9 is a flowchart showing a control method of a detergent dispensing apparatus for a drum type washing machine according to an embodiment of the present invention.

10 is a block diagram showing a detergent dispensing apparatus for a drum type washing machine according to another embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

20: storage block 30:

50: pump 60:

70: storage portion 80: selection key

90:

Claims (7)

A storage block having a storage portion for storing the liquid additive and a storage portion for storing the powder detergent; A pump provided in the storage block and communicating with the reservoir to supply a liquid additive; A selection key for determining the type of additive supplied to the tub; And And a control unit for determining whether the pump is driven or not and whether the wash water is supplied to the storage unit according to whether the selection key is operated or not, Wherein the storage block comprises: A first storage unit for storing the liquid detergent; A second storage section for storing the fabric softening agent; A first storage portion for storing the powdery detergent for preliminary washing; And And a second receiving portion in which the present washing powder detergent is received, Wherein the first and second storage portions are provided with a distribution block for selectively supplying wash water to the first storage portion and the second storage portion with a time interval therebetween. . A storage block having a storage portion for storing the liquid additive and a storage portion for storing the powder detergent; A pump provided in the storage block and communicating with the reservoir to supply a liquid additive; A sensor provided in the storage unit for sensing whether powdered detergent is input; And And a control unit for determining whether the pump is driven or not and whether the washing water is supplied to the storage unit according to a signal transmitted from the sensor, Wherein the storage block comprises: A first storage unit for storing the liquid detergent; A second storage section for storing the fabric softening agent; A first storage portion for storing the powdery detergent for preliminary washing; And And a second receiving portion in which the present washing powder detergent is received, Wherein the first and second storage portions are provided with a distribution block for selectively supplying wash water to the first storage portion and the second storage portion with a time interval therebetween. . delete A determining step of determining a type of the washing additive to be supplied to the tub in accordance with the operation of the selection key; And And a driving step of supplying a liquid detergent stored in a storage portion of the storage block to a turbine by driving a pump installed in the storage block when a liquid additive is selected, If the powder detergent is selected in the determining step, the water is selectively supplied to the storage portion of the storage block at a time interval by the distribution block to supply the washing water and the powder detergent to the tub , Wherein the first and second compartments are connected to each other through a connecting hole formed in the first compartment and the second compartment, And the main washing is performed, If the liquid detergent is selected in the determination step, the first pump of the pump is driven to perform the preliminary washing and the main washing, and the second pump of the pump is driven at a time interval after the first pump is driven, And a control unit for controlling the detergent supply unit. delete A determination step of determining whether powdered detergent is input according to a signal transmitted from a sensor provided in the storage unit of the storage block; And And a water supply step of supplying washing water and powder detergent to the tub through the washing water when the powder detergent is supplied, And a driving step of supplying a liquid detergent stored in a storage portion of the storage block to a turbine by driving a pump installed in the storage block if the powder detergent is not detected in the determining step, The distribution block supplies the wash water to the first storage portion for storing the powder washing detergent for preliminary washing so that the preliminary washing is performed and the washing water is supplied to the first storage portion, The washing water is supplied by the washing water, If the liquid detergent is selected in the determination step, the first pump of the pump is driven to perform the preliminary washing and the main washing, and the second pump of the pump is driven at a time interval after the first pump is driven, And a control unit for controlling the detergent supply unit. delete

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