KR100860053B1 - Drum type washing machine - Google Patents

Abstract

A frontloading washer is provided to prevent a malfunction and corrosion of a discharge fan by forming a step between en extension pipe and a housing and guiding water from the bottom of the extension pipe to a discharge pump through a connection pipe. A frontloading washer comprises a tub(52), a drum, a suction pipe, a discharge pipe(70), a discharge fan, a motor, an extension pipe(76), and a housing. The suction pipe is connected to the tub. The discharge pipe is connected to the tub and extended to the outside of a cabinet. The discharge fan is installed near a discharge hole of the tub in the housing. The motor drives the discharge fan. The extension pipe and the housing are installed between the discharge hole and the discharge pipe.

Description

Drum Washing Machine {DRUM TYPE WASHING MACHINE}

1 is a block diagram showing a drum washing machine according to the prior art.

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

3 is a front view showing a tub of the 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.

<Explanation of symbols on main parts of the drawings>

50: cabinet 52: tub

52a: through hole 52b: discharge hole

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 76: extension tube

77: step 78: housing

80: Balancer

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 drum washing machine according to the prior art.

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 inside of the upper surface of the cabinet 1 and the upper side of the outer peripheral surface of the tub 3, and although not shown, the inside of the lower surface of the cabinet 1 and the bottom of the outer surface of the tub 3 are not shown. Between the sides is provided with a damper (not shown) for damping the vibration of the tub (3) generated during the operation of the drum washing machine.

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). At this time, the drying duct 7 has a heater 7b and a blowing fan 7a are built in so as to generate and force 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.

That is, the gasket 8 is installed along the front inner edge of the tub 3 and has a corrugated shape to accommodate the vibration of the tub 3. Accordingly, the 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 condensed water 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.

Conventional drum washing machine that removes moisture in the air by using condensed water performs a drying stroke while the air inside the drum 4 having high humidity circulates, thereby reducing drying efficiency. That is, in the method of removing the moisture of the circulated air using the condensed water, it is not easy to remove the moisture in the air below a predetermined value, and the drying efficiency is lowered.

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

The drum washing machine according to the present invention for solving the above problems includes a tub installed inside the cabinet to wash the fresh water, a drum rotatably installed inside the tub to accommodate the laundry, and an intake pipe connected to the tub. Characterized in that.

In addition, the intake pipe of the present invention is characterized in that it is disposed above the tub.

In addition, one side of the intake pipe of the present invention is connected to the through-hole portion formed on the back of the tub, the other side is characterized in that the free end is located. Here, the other side of the intake pipe is preferably located inside the cabinet.

The present invention may further include an exhaust pipe communicating with the tub and extending outside the cabinet, an exhaust fan installed at an outlet hole side of the tub, and a motor for driving the exhaust fan.

In addition, the exhaust pipe of the present invention is characterized in that the communication with the discharge hole.

In addition, an extension tube and a housing are installed between the discharge hole and the exhaust pipe of the present invention, and the exhaust fan is installed in the housing.

In addition, the tub of the present invention is characterized in that the balancer is installed spaced apart, the extension pipe is installed between the balancer.

In addition, the back of the drum of the present invention is characterized in that the inlet hole corresponding to the through-hole portion is formed.

In addition, the inlet hole of the present invention is characterized in that it is formed in a circular band shape on the back of the drum.

In addition, between the bottom surface of the extension tube of the present invention and the bottom surface of the housing is characterized in that the step is formed in which the bottom surface of the housing is positioned a predetermined amount higher.

In addition, the present invention further comprises a drain pump for discharging the wash water from the tub, characterized in that the connection pipe is installed between the bottom surface of the extension pipe and the drain pump.

In addition, the heater is characterized in that the heater is further installed.

Hereinafter, an embodiment of a drum washing machine according to the present invention will be described in detail with reference to the accompanying drawings. For convenience of description, a drum washing machine having a condensation drying apparatus will be described as an example. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

Figure 2 is a block diagram showing a drum washing machine according to an embodiment of the present invention, Figure 3 is a front view showing a tub of the 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 an embodiment of the present invention is installed in the cabinet 50, the cabinet 50, the tub 52 to be washed with fresh water, and inside the tub 52 A drum 54 rotatably installed to accommodate laundry, a driving device 58 installed on the tub 52 and connected to the drum 54, and a water supply connected to the tub 52 from the outside of the cabinet 50. Apparatus 56, a drainage device 59 extending from the tub 52 to the outside of the cabinet 50, and a drying device for removing moisture from the laundry after 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 completed, the washing water is drained out of the cabinet 50 by the drainage device 59, and a drying operation is performed to remove the moisture remaining in the laundry by the drying device.

The drying apparatus performing the drying operation includes an intake pipe 60 communicating with the tub 52, an exhaust pipe 70 communicating with the tub 52 and extending out of the cabinet 50, and a discharge hole of the tub 52. The exhaust fan 72 provided in the 52b side, and the motor 74 connected to the rotating shaft of the exhaust fan 72 are included. 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 in order to reduce dust in the inflowing air.

A through hole portion 52a through which the intake pipe 70 is connected is formed on the rear surface of the tub 52, and a discharge hole portion 52b through which the exhaust pipe 70 communicates is formed in the opening of the tub 52.

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 outside the cabinet 50 is introduced along the intake pipe 60 and heated by the heater 62, the air is converted into hot 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).

The washing water in the drum 54 may flow out through the intake pipe 60 during the washing operation. Therefore, the intake pipe 60 is preferably located above the tub 52. In this embodiment, 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, and the other end is inside the cabinet 50. It is arranged freely.

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, an extension pipe 76 and a housing 78 are installed between the discharge hole 52b and the exhaust pipe 70 to improve the drying efficiency, and an exhaust fan 72 is installed in the housing 78. In cooperation with the operation of the exhaust fan 72, the air inside the drum 54 is discharged to the exhaust pipe 70, and the external air having low moisture is supplied into the drum 52 through the intake pipe 60. Since air having low humidity is supplied into the drum 52, the drying efficiency is improved.

A pair of balancers 80 are spaced apart from each other in the opening of the tub 52. The extension tube 76 is installed between each balancer 80 so that the balancer 80 and the extension tube 76 do not interfere.

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. Since the drum 54 is rotated, the inflow hole 54a is preferably formed in a circular band shape on the rear surface of the drum 54. Even though the drum 54 is rotated, the through-hole 52a and the inflow hole 54a are maintained to correspond to each other, so that air flowing through the through-hole 52a can be supplied into the drum 54. .

In addition, a step 77 is formed between the bottom surface of the extension pipe 76 and the bottom surface of the housing 78, and the bottom surface of the housing 78 is positioned a predetermined amount higher, and the bottom surface of the extension pipe 76 and the drain pump. Since the connecting pipe 79 is installed between the 59b, the wash water drained to the extension pipe 76 through the discharge hole 52b is collected at the bottom of the extension pipe 76 and the drain pump 59b along the connection pipe 79. And discharged to the outside of the cabinet 50 along the drain pipe 59a.

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 coming into contact with the laundry in the drum 54 absorbs moisture and passes through the discharge hole 52b and the extension pipe 76, the housing 78, and the exhaust fan 72, along the exhaust pipe 70. 50 is discharged to the outside.

At this time, the wash water flowing out through the discharge hole (52b) is collected on the bottom surface of the extension pipe 76, and drained out of the cabinet 50 along the drain pipe 59a along the drain pipe 59a along the connection pipe 79. The air flowing into the extension pipe 76 through the discharge hole 52b is diverted to the exhaust pipe 70 by the exhaust fan 72 and discharged to the outside of the cabinet 50.

As a result, the washing water and the air introduced through the discharge hole 52b are separated from each other and discharged to the outside of the cabinet 50 along the drain pipe 59a and the exhaust pipe 70.

In addition, since the extension tube 76 installed on the front of the tub 52 when the drying operation or the washing operation as described above is installed between the balancer 80, a predetermined interval between the extension tube 76 and the balancer 80 is prevented. Since it is maintained, the contact between the balancer 80 and the extension pipe 76 can be prevented.

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

The present invention performs the drying operation using the air of high temperature and low humidity, so that the drying efficiency is improved.

In addition, the present invention can be circulated smoothly because the air flows using the exhaust fan. Therefore, the present invention can reduce the time and cost required for the drying operation.

In addition, the present invention is provided with a plurality of balancers spaced apart to prevent interference between the drying device and other devices, it is possible to reduce the vibration or noise generated during the drying operation and washing operation. Therefore, the present invention can prevent the parts from being damaged due to vibration, and there is an advantage of performing a quiet and safe washing and drying operation.

In addition, the present invention is because the step is formed between the extension pipe and the housing, the connection pipe for guiding the wash water collected on the bottom surface of the extension pipe to the drainage pump, so as to separate the discharged air and the wash water discharged through the discharge hole, Malfunctions and corrosion caused by the contact of the wash water with the exhaust fan can be prevented from being damaged by the product, thereby extending the life of the product.

Claims (12)

A tub installed inside the cabinet to wash water; A drum rotatably installed inside the tub to accommodate laundry; And An intake pipe in communication with said tub; An exhaust pipe communicating with the tub and extending out of the cabinet, an exhaust fan installed at an outlet hole side of the tub, and a motor driving the exhaust fan; An extension pipe and a housing are installed between the discharge hole and the exhaust pipe, and the exhaust fan is installed in the housing. The method of claim 1, The intake pipe is a drum washing machine, characterized in that disposed above the tub. The method of claim 1, One side of the intake pipe is connected to the through hole formed in the back of the tub, the other side drum washing machine, characterized in that located in the free end. The method of claim 3, wherein Drum washing machine, characterized in that the other side of the intake pipe is located inside the cabinet. delete The method of claim 1, The exhaust pipe is a drum washing machine, characterized in that in communication with the discharge hole. delete The method of claim 1, Balancer is installed in the tub spaced apart, the drum washing machine, characterized in that the extension pipe is installed between the balancer. The method of claim 3, wherein An inlet hole corresponding to the through hole is formed on a rear surface of the drum, and the inlet hole is formed in a circular band shape on the back of the drum. The method of claim 1, Drum washing machine, characterized in that the step is formed between the bottom surface of the extension tube and the bottom surface of the housing is a predetermined amount of the bottom surface of the housing. The method of claim 10, And a drain pump for discharging the wash water from the tub, wherein a connection pipe is installed between the bottom surface of the extension pipe and the drain pump. The method of claim 1, Drum washing machine characterized in that the heater is further installed inside the intake pipe.

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