KR101297995B1 - Drum type washing machine - Google Patents

Abstract

The present invention relates to a drum washing machine, and more particularly, to a drum washing machine in which the drying efficiency is improved, thereby reducing the time and cost required for the drying operation.

The present invention according to the present invention is a tub installed inside the cabinet is fresh water wash, rotatably installed inside the tub is a drum containing the laundry, intake pipe communicating with the tub, and the outside of the cabinet from the tub It extends to, and provides a drum washing machine comprising an exhaust pipe disposed relatively high compared to the bottom surface of the tub.

Washing machine, drum washing machine, tub, drum, filter

Description

Drum Washing Machine {DRUM TYPE WASHING MACHINE}

The present invention relates to a drum washing machine, and more particularly, to a drum washing machine in which the drying efficiency is improved, thereby reducing the time and cost required for the drying operation.

In general, the drum washing machine is a device for washing laundry by rotating the drum by the driving force of the motor in a state in which detergent, washing water and laundry are put into the drum.

The drum washing machine has the advantage of less damage to the laundry and the laundry is not tangled well, knocking and rubbing the washing effect.

1 is a block diagram showing a conventional drum washing machine.

Referring to Figure 1, the drum washing machine according to the prior art is installed in the laundry inlet formed in the front of the cabinet (1) so that the door (2) can be opened and closed, the tub (3) inside the cabinet (1) to store the wash water Is installed.

In the tub 3, a drum 4 having a hole formed on an outer circumferential surface thereof is rotatably installed, and a motor device 5 for transmitting a driving force to the drum 4 is installed outside the tub 3.

In addition, the door glass 2a is provided in the door 2 so as to protrude toward the opening side of the tub 3.

A spring 6 for supporting the tub 3 is installed between the inner side of the upper surface of the cabinet 1 and the upper side of the outer peripheral surface of the tub 3, and between the inner side of the lower surface of the cabinet 1 and the lower side of the outer peripheral surface of the tub 3. A damper (not shown) is installed to damp the vibration of the tub 3 generated when the drum washing machine is operated.

In addition, as the motor device 5, an indirect driving method for transmitting the driving force generated by the motor 5a to the washing shaft 5c by the belt 5b and rotating the drum 4 is mainly applied.

On the other hand, the drying duct 7 is installed on the upper inner surface of the cabinet (1).

The drying duct 7 includes a heater 7b and a blower fan 7a for generating and forcibly blowing hot air.

One end of the drying duct 7 is connected to a gasket 8 that connects the front opening edge of the tub 3 and the door periphery of the front of the cabinet 1.

The gasket 8 is installed along the front inner rim of the tub 3 and has a corrugated shape to accommodate vibration of the tub 3.

As a result, hot air is prevented from leaking through the connection portion between the drying duct 7 and the tub 3.

In addition, the tub 3 is provided with a condensation duct 9 so as to communicate with the drying duct (7).

At this time, one end of the condensation duct 9 is connected to the rear of the tub 3, the other end of the condensation duct 9 is connected to the drying duct (7).

The condensation duct 9 is provided with a condensate supply pipe 9a for supplying condensate to condense moisture in the air to remove moisture.

On the other hand, the condensate water supply pipe (9a) is manufactured separately from the condensation duct (9) is a structure that is fixed to the fixing groove (9h) formed on the upper condensation duct (9).

At this time, the water supply hose (9b) is connected to one side of the condensate supply pipe (9a).

Dry combined drum washing machine configured as described above performs a washing stroke, a rinsing stroke, a dehydrating stroke and a drying stroke.

Hereinafter, the drying operation of the combined drying drum washing machine will be described.

When the drying operation of the drum washing machine is started, power is applied to the heater 7b of the drying duct 7.

At this time, as the blowing fan 7a and the heater 7b are operated, the blowing fan 7a blows hot air.

This hot air hits the inclined portion of the door glass 2a by the guide of the drying duct 7 and flows into the drum 4.

The hot air introduced into the drum 4 heats the laundry to evaporate the moisture contained in the laundry.

At this time, by stirring the laundry while the drum 4 is rotated at a low speed, the laundry is evenly exposed to hot air to help evaporation of moisture.

The evaporated water is discharged through the condensation duct 9 while being contained in the air.

At this time, water is sprayed from the condensate water supply pipe 9a of the condensation duct 9 to remove moisture in the air.

Air dehumidified in this way is introduced into the drying duct (7) and the air introduced into the drying duct (7) is converted into hot air by the heater (7b) and the blowing fan (7a) is reflowed into the drum (4) Drying is performed on the laundry.

The laundry is dried while repeatedly performing this series of procedures.

The drum washing machine according to the prior art performs a drying stroke while air is circulated inside a drum with high humidity, so it is difficult to collect moisture in the tub and the air inside the drum and discharge the moisture out of the tub. There is a problem that the drying efficiency is difficult to be improved since it is not easy to lower it below a predetermined value.

Therefore, there is a need for improvement.

The present invention has been made to improve the above problems, and an object thereof is to provide a drum washing machine that can improve the drying efficiency by using air with low humidity.

In order to achieve the above object, the present invention, a drum washing machine comprising a tub, a drum provided inside the tub, an intake pipe communicating with the tub, and an exhaust pipe extending from the tub to the outside of the cabinet To provide.

In addition, the intake pipe of the present invention communicates with the lower side of the tub, the exhaust pipe provides a drum washing machine, characterized in that the communication with the upper side of the tub.

In addition, one side of the intake pipe of the present invention is connected to the through hole formed in the tub, the other side provides a drum washing machine, characterized in that located in the free end.

In addition, the other side of the intake pipe of the present invention is located in the cabinet, the drum is formed with an inlet hole corresponding to the through-hole portion, characterized in that the inlet hole is formed in a circular band shape on the drum. It provides a drum washing machine.

In addition, the exhaust pipe of the present invention provides a drum washing machine, characterized in that disposed relatively high compared to the bottom surface of the tub.

The present invention also provides a drum washing machine further comprising an exhaust fan installed in the exhaust pipe of the present invention and a motor for driving the exhaust fan.

In addition, the exhaust pipe of the present invention provides a drum washing machine, characterized in that the communication with the discharge hole of the gasket installed between the tub and the cabinet.

In addition, the end of the exhaust pipe is inserted into the discharge hole of the present invention is provided with a bent portion that is bent in the drum direction, the bent portion provides a drum washing machine, characterized in that provided with a filter.

Drum washing machine according to the present invention has the advantage that the drying efficiency is improved by performing the drying operation using the air of high temperature and low humidity.

In addition, the drum washing machine according to the present invention has an advantage that the tub, and the air inside the drum to be discharged to the outside of the cabinet by using an exhaust fan, the air of high temperature and low humidity is continuously supplied to improve the drying efficiency.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a drum washing machine according to the present invention.

For convenience of explanation, a drum washing machine will be described as an example.

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.

On the other hand, for convenience of description, the same parts or structures as the conventional invention and the same parts use the same reference numerals or names.

Figure 2 is a block diagram showing a drum washing machine according to an embodiment of the present invention, Figure 3 is a cross-sectional view showing a filter of a drum washing machine according to an embodiment of the present invention, Figure 4 is an embodiment of the present invention The drum of the drum washing machine according to the rear view is shown.

2 to 4, the drum washing machine according to the embodiment of the present invention is installed in the cabinet 50, the tub 52 installed inside the cabinet 50, and the tub 52 rotatably installed in the tub 52. The drum 54, the drive unit 58 installed on the tub 52 and connected to the drum 54, the water supply unit 56 connected to the tub 52 from the outside of the cabinet 50, and the tub ( And a drainage device 59 extending from the cabinet 50 to the outside of the cabinet 50, and a drying device 100 for removing moisture from the laundry in which the washing operation is completed.

When the user starts the operation after storing the laundry inside the drum 54, the washing water is supplied to the tub 52 and the drum 54 by the water supply unit 56, and the driving device 58 when the washing water supply is completed. ), Power is applied to the washing machine while the drum 54 rotates.

When the washing operation is finished, the washing water is drained to the outside of the cabinet 50 by the drainage device 59, and the drying operation is performed by removing the moisture remaining in the laundry by the drying device 100.

The drying apparatus 100 which performs the drying operation is an intake pipe 60 communicating with the tub 52, an exhaust pipe 70 communicating with the tub 52 and extending outside the cabinet 50, and the tub 52. An exhaust fan 72 provided at the discharge hole portion 53a side of the exhaust fan portion 53a, and a motor 74 connected to the rotating shaft of the exhaust fan 72.

It is preferable that the heater 62 is installed inside the intake pipe 60 to heat the air introduced therein.

In addition, one side of the intake pipe 60 is connected to the tub 52 so that the outside air having low moisture is introduced, and the other side is preferably formed as a free end.

Here, the other side of the intake pipe 60 is preferably located inside the cabinet 50 to reduce the dust in the air flowing into the drum 54 is introduced.

A through hole 52a through which the intake pipe 70 is connected is formed on the rear surface of the tub 52, and a discharge hole 53a through which the exhaust pipe 70 communicates with the gasket 53 provided between the tub 52 and the cabinet. ) Is formed.

When the drying operation is started, the drum 54 is rotated to a predetermined speed or less by the driving device 58 and power is applied to the motor 74 to drive the exhaust fan 72 to inflow of external air.

Since the air inside the cabinet 50 is introduced along the intake pipe 60 and heated by the heater 62, the air is converted into high temperature dry air and absorbs moisture while being in contact with the laundry flowing in the drum 54. .

Air absorbing the moisture is discharged to the outside of the cabinet 50 along the exhaust pipe (72) along the exhaust pipe (70).

Since the washing water in the drum 54 may be leaked out through the intake pipe 60 and the exhaust pipe 70 during the washing operation, the intake pipe 60 and the exhaust pipe 70 are connected to the tub 52 to prevent the washing water. It is preferably located on the upper side.

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In one embodiment of the present invention, the intake pipe 60 is installed on the inner wall of the cabinet 50, bent twice in a 'c' shape so that one end is connected to the back of the tub 52, the other end is the cabinet 50 ) Is arranged freely on the upper side.

By configuring the intake pipe 60 as described above, the air in the cabinet 50 can be introduced along the intake pipe 60 to be introduced into the tub 52.

In addition, in order to improve the drying efficiency, a seating portion 78 is installed between the discharge hole 53a and the exhaust pipe 70, and an exhaust fan 72 is installed in the seating portion 78.

In conjunction with the operation of the exhaust fan 72, the air in the drum 54 is discharged to the exhaust pipe 70, the outside air of low moisture is supplied to the drum 52 through the intake pipe 60.

Since the air in the cabinet 50 with low humidity is supplied into the drum 52, the drying efficiency is improved.

At this time, since the exhaust pipe 70 is disposed relatively higher than the bottom surface of the tub 52, washing water generated when the dehydration operation is performed can be prevented from being lost to the outside of the cabinet 50 along the exhaust pipe 70. do.

The inlet hole 54a is formed on the rear surface of the drum 54 so as to correspond to the through hole 52a so that external air flowing into the tub 52 is supplied into the drum 54.

A plurality of inlet holes 54a are formed at predetermined intervals.

In addition, since the inflow hole 54a corresponds to the through hole 52a of the rotating drum 54, the inflow hole 54a is preferably formed in a circular band shape on the rear surface of the drum 54.

As a result, the through-hole 52a and the inflow hole 54a are maintained while the drum 54 is rotated so that the air flowing through the through-hole 52a can be supplied into the drum 54. Will be.

In addition, the intake pipe 60 and the exhaust pipe 70 of the present invention reveals that it may be connected to a position other than the back of the tub 52.

Looking at the operation of the drum washing machine according to an embodiment of the present invention configured as described above are as follows.

First, when the washing operation is completed and the drying operation is started, power is applied to the driving device 58 so that the drum 54 is rotated at a low speed or less, and the motor 74 is driven to rotate the exhaust fan 72. Air flow is made.

When the exhaust fan 72 is rotated in this way, air in the cabinet 50 flows through the through-hole 52a and the inlet hole 54a into the drum 54 along the intake pipe 60. Air passing through) is converted into hot dry air by the heater 62.

As a result, the hot dry air contacting the laundry in the drum 54 absorbs moisture and is discharged to the outside of the cabinet 50 along the exhaust pipe 70 through the discharge hole 53a and the exhaust fan 72.

At this time, since both the exhaust pipe 70 and the intake pipe 60 are disposed above the tub 52, the washing water is prevented from being discharged through the exhaust pipe 70 and the intake pipe 60, and the washing water is drained. It is discharged to the outside of the cabinet 50 by the drainage apparatus 59 which consists of 59a and the drain pump 59b.

In addition, an end portion of the exhaust pipe 70 inserted into the gasket 53 is formed with a bent portion 77 which is bent toward the drum 54 side, and the filter 79 is provided at the bent portion 77 to thereby provide a drum. (54) The air inside is smoothly discharged, and foreign substances in the air are caught by the filter 79 to prevent the air from being discharged to the outside.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

In addition, the drying apparatus installed in the drum washing machine has been described as an example, but this is merely exemplary, and the drying apparatus of the present invention may be used in other products than the drying apparatus used in the drum washing machine.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

1 is a block diagram showing a conventional drum washing machine.

2 is a block diagram showing a drum washing machine according to an embodiment of the present invention.

3 is a cross-sectional view showing a filter of a drum washing machine according to an embodiment of the present invention.

Figure 4 is a rear view showing the drum of the drum washing machine according to an embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

50: cabinet 52: tub

52a: through hole 853: gasket

54: drum 54a: inflow hole

56: water supply device 58: drive device

60: intake pipe 62: heater

70 exhaust pipe 72 exhaust fan

74: motor 77: bent portion

79: filter

Claims (8)

Tub; A drum provided inside the tub; An air intake pipe communicating with the tub; And An exhaust pipe extending from the tub to the outside of the cabinet, One side of the intake pipe is connected to the through hole formed in the tub, the other side of the intake pipe is located at the free end inside the cabinet, The drum is provided with an inlet hole corresponding to the through-hole portion, the inlet hole is a drum washing machine, characterized in that formed in a circular band shape on the drum. The method of claim 1, The intake pipe is in communication with the lower side of the tub, the exhaust pipe is in communication with the upper side of the tub. delete delete The method of claim 1, The exhaust pipe is a drum washing machine, characterized in that disposed relatively higher than the bottom surface of the tub. The method according to any one of claims 1, 2, and 5, And an exhaust fan installed in the exhaust pipe and a motor for driving the exhaust fan. The method of claim 6, The exhaust pipe is a drum washing machine, characterized in that in communication with the discharge hole of the gasket installed between the tub and the cabinet. The method of claim 7, wherein The end portion of the exhaust pipe is inserted into the discharge hole is formed with a bent portion bent in the drum direction, the bent portion is a drum washing machine, characterized in that provided with a filter.

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