KR100795050B1 - Condensation type dryer and drum type washing machine therewith - Google Patents

Abstract

A condensation dryer and a front loading washing machine having the same are provided to reduce dry time and a cost by collecting moisture from air by using a collecting unit. A condensation dryer(70) comprises a cabinet(50), a tub(52), a circulation pipe(72), a blowing fan, a heater, a water supply pipe(78), and a collecting unit. The collecting unit is installed at the circulation pipe, and helps cooling water to be stored in an inner wall of the circulation pipe. The collecting unit has a cooling pin(77) to transfer heat between cooling water and air. The collecting unit is composed of a partition which is projected from the inner wall of the circulation pipe and being extended to upwards.

Description

CONDENSATION TYPE DRYER AND DRUM TYPE WASHING MACHINE THEREWITH}

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 cross-sectional view showing a condensation type drying apparatus of a drum washing machine according to an embodiment of the present invention.

Figure 4 is a perspective view of the cooling fins of the drum washing machine according to an embodiment of the present invention.

5 is a cross-sectional view showing a condensation type drying apparatus of a drum washing machine according to another embodiment of the present invention.

6 is a block diagram showing a condensation type drying apparatus according to another embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

50: cabinet 52: tub

54 drum 56 drive device

58: water supply 59: drainage

70: condensation drying apparatus 71: temperature sensor

72: circulation tube 73: control unit

75: collecting means 77: cooling fin

77a: main body 77b: heat absorbing portion

78: water supply pipe 79: drain pipe

79a: drain valve

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum washing machine, and more particularly, to a condensation type drying apparatus and a drum washing machine having the same, in which drying efficiency is improved by easily collecting moisture in air which has been dried.

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

Referring to FIG. 1, the drum washing machine according to the related art is provided with a cabinet 10 having an opening formed therein, a tub 2 installed inside the opening to receive fresh water, and rotatably installed inside the tub 2. The drum 4 accommodated therein, the driving device 6 installed on the tub 2 and connected to the drum 4, and the water supply device extending from the tub 2 to the outside of the cabinet 10 to supply washing water. (8), a drainage device (9) extending from the tub (2) to the outside of the cabinet (10) to discharge the wash water, and installed in the tub (2) to the inside and outside of the tub (2) during the drying operation. And a drying apparatus 20 which collects moisture in the circulating air and converts it into hot drying air.

Here, the drying apparatus 20 includes a circulation pipe 22 extending from the lower end of the tub 2 to the opening side, a blowing fan 24 installed in the circulation pipe 22 to generate air flow, and the circulation pipe. A heater 26 installed in the 22 and heating the air injected into the tub 2 by the blowing fan 24, and the tub 2 installed in the circulation pipe 22 by the blowing fan 24. It includes a water supply pipe 24 for injecting the cooling water to the air discharged to the outside to collect the moisture in the air.

Thus, when the drying operation is started, the air inside the tub 2 is circulated to the inside of the tub 2 and the outside along the circulation pipe 22 by the blowing fan 24.

At this time, the air injected into the tub (2) is heated by the heater (26) to form a high temperature dry air, and flows inside the tub (2) to contact with the laundry to collect the water remaining in the laundry tub 2 It is discharged to the outside.

Since the air discharged in this way is in contact with the cooling water injected from the water supply pipe 28 while flowing along the circulation pipe 22, the moisture collected in the drum 4 is condensed and separated from the air.

As this operation is repeated, moisture remaining in the laundry is discharged to the outside of the tub 2.

However, the drying apparatus 20 of the drum washing machine according to the prior art has a predetermined drying efficiency because a separate heat transfer member is not provided except for the condensation action generated when the coolant injected into the circulation pipe 24 and the flow of air are contacted. There is a problem that cannot be improved.

The present invention has been made to improve the problems of the prior art, it is an object of the present invention to provide a condensation type drying apparatus and a drum washing machine having the same to improve the drying efficiency.

Condensation drying apparatus according to the present invention for solving the above problems is installed in the cabinet, the tub is installed in the cabinet fresh water, the tub is installed in the tub so that the air inside the tub is circulated to the inside and outside of the tub. A circulation pipe, a blower fan installed in the circulation pipe, a heater installed in the circulation pipe to heat air injected into the tub, and a water supply pipe installed in the circulation pipe to inject cooling water into the air discharged to the outside of the tub And a collecting means installed in the circulation pipe to cool the sprayed water to the inner wall of the circulation pipe.

In another aspect, the present invention is characterized in that it further comprises a cooling fin installed in the collecting means for performing heat transfer between the cooling water and the air.

In addition, the collecting means of the present invention is characterized by consisting of a partition wall protruding from the inner wall of the circulation pipe extending upward.

In addition, the collecting means of the present invention is characterized in that it comprises a drain pipe extending to the outside of the circulation pipe, and a drain valve installed in the drain pipe.

In addition, the cooling fin of the present invention is formed in a cylindrical shape of the upper and lower ends are opened to fit the main body sandwiched between the collecting means and the inner wall of the circulation pipe, and endothermic absorbing heat energy in the air formed at the end of the main body passing through It characterized in that it comprises a part.

In addition, the heat absorbing portion of the present invention is characterized by consisting of ribs arranged radially.

In addition, the condensation type drying apparatus according to the present invention and a drum washing machine having the same are installed in the cabinet, the cabinet tub to wash the fresh water, the tub is installed in the tub so that the air inside the tub is circulated to the inside and outside of the tub , A blower fan installed in the circulation pipe, a heater installed in the circulation pipe to heat the air injected into the tub, a water supply pipe installed in the circulation pipe and spraying the coolant to the air discharged to the outside of the tub, and a spray pipe installed in the circulation pipe It characterized in that it comprises a condensation type drying apparatus including a collecting means for allowing the coolant to be fresh water to the inner wall of the circulation pipe.

Hereinafter, an embodiment of a condensation type drying apparatus and a drum washing machine having the same 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 cross-sectional view showing a condensation type drying apparatus of the drum washing machine according to an embodiment of the present invention, Figure 4 is Cooling fins of the drum washing machine according to one embodiment is a perspective view.

2 to 4, the drum washing machine according to an embodiment of the present invention, the cabinet 50 is formed with an opening, the tub 52 is installed inside the opening and fresh water wash, and the tub 52 inside A drum 54 rotatably installed in the laundry to accommodate the laundry, a driving device 56 installed on the tub and connected to the drum, and a water supply extending from the tub 52 to the outside of the cabinet 50 to supply the washing water; A device 58, a drainage device 59 extending from the tub 52 to the outside of the cabinet 50 to discharge the wash water, and installed in the tub 52 to the inside and outside of the tub 52 during the drying operation. And a condensation type dryer 70 for collecting moisture in the circulating air and converting it into hot drying air.

Here, the condensation type drying apparatus 70 includes a circulation pipe 72 extending from the lower end of the tub 52 to the opening side, a blowing fan 74 installed in the circulation pipe 72 to generate air flow, A heater 76 installed in the circulation pipe 72 to heat the air injected into the tub 52 by the blowing fan 74, and a tub (installed in the circulation pipe 74) by the blower fan 74. 52) A water supply pipe 78 for collecting the moisture in the air by spraying the coolant to the air discharged to the outside, and the collecting means 75 for fresh water installed in the circulation pipe 72 to the fresh water on the inner wall of the circulation pipe 72 And a cooling fin 77 installed at the collecting means 75 to conduct heat transfer between the cooling water and the air.

Thus, when the drying operation is started, the air inside the tub 52 is circulated to the inside of the tub 52 and the outside along the circulation pipe 72 by the blowing fan 74.

At this time, the air injected into the tub 52 is heated by the heater 76 to form a high temperature dry air, and flows in the tub 52 and in contact with the laundry to collect the moisture remaining in the laundry to tub 52 It is discharged to the outside.

Air discharged in this way is in contact with the cooling water injected from the water supply pipe 78 while flowing along the circulation pipe 72, and the moisture collected in the drum 54 is condensed and separated from the air.

As this operation is repeated, the water remaining in the laundry is discharged to the outside of the tub 52.

At this time, a part of the cooling water injected into the circulation pipe 72 is fresh water in the collecting means 75, so that the air flowing along the circulation pipe 72 performs heat transfer while contacting the collecting means 75, so that the above condensation action is achieved. To be weighted.

In addition, since the air passing through the collecting means 75 performs secondary heat transfer while being in contact with the cooling fin 77, the temperature of the air is effectively lowered, so that the air passing through the circulation pipe 72 is condensed with moisture in the known air. To be converted.

The collecting means 75 is formed of a partition wall protruding from the inner wall of the circulation pipe 72 and extending upward, and a predetermined space is formed between the inner wall and the partition wall of the circulation pipe 72, and the space is circulated because the upper end is opened. Cooling water injected into the tube 72 is fresh water into the space between the inner wall and the partition wall of the circulation tube.

In addition, the cooling fin 77 is formed in a cylindrical shape in which the upper and lower ends are opened to be fitted between the collecting means 75 and the inner wall of the circulation pipe 72, and formed at the end of the main body 77a. And an endothermic portion 77b that absorbs heat energy in the air that is passed through.

And the heat absorbing portion (77b) is composed of ribs arranged radially to allow the heat transfer without disturbing the progress of the air passing through the cooling fin (77).

As a result, when the lower end of the main body 77a is inserted into the collecting means 75, the cooling water freshened in the collecting means 75 comes into contact with the cooling fin 77, so that the heat transfer between the cooling water and the air is caused by the cooling fin 77. Will be done.

Looking at the action of the condensation type drying apparatus and a drum washing machine having the same according to an embodiment of the present invention configured as described above are as follows.

First, when the laundry operation is started after storing the laundry in the drum 54, the washing water is supplied to the tub 52 by the water supply device 58, and the drum 54 is rotated by the driving device 56 to wash the laundry. The operation is made.

After the washing operation and the rinsing operation are completed, the drying operation is started, and the blower fan 74 is driven so that the air in the drum 54 and the tub 52 is circulated along the circulation pipe 72. Along the inner and outer sides.

In addition, the air flowing into the drum 54 is converted into hot dry air by the heater 76, and the wash water remaining in the laundry is included in the air by the flow of the hot dry air, and discharged along the circulation pipe 72. do.

At this time, the contact between the cooling water and the air injected into the circulation pipe 72 along the water supply pipe 78, the moisture in the air is condensed and separated from the air, the dried air is heated while passing through the heater 76 And circulated back into the drum 54.

And the air passing through the collecting means 75 is lowered by a predetermined temperature while contacting the collecting means 75, the temperature is lowered again while being in contact with the heat absorbing portion 77b while passing through the cooling fin 77 again effective condensation operation To do it.

In addition, since the heat absorbing portion 77b of the cooling fin 77 is formed with a plurality of radial ribs, air passes easily between the radial ribs, and the cooling fin 77 is made of a high thermal conductivity metal such as aluminum. Heat transfer between the coolant and the air can be easily achieved.

5 is a cross-sectional view showing a condensation type drying apparatus of a drum washing machine according to another embodiment of the present invention, Figure 6 is a block diagram showing a condensation type drying apparatus according to another embodiment of the present invention.

5 and 6, another embodiment of the condensation type drying apparatus according to an embodiment of the present invention is characterized in that the collecting means (75) compared to the embodiment, the collecting means (75) Is a drain pipe 79 extending out of the circulation pipe, a drain valve 79a installed on the drain pipe 79, a temperature sensor 71 installed on the collecting means 75 and measuring the temperature of the cooling water, When the coolant is heated above a predetermined temperature according to the signal received from the detection sensor 71, the drain valve 79a is opened according to the signal of the controller 73, so that the coolant that has undergone heat exchange is discharged to the outside of the cabinet 50, Cooling water is supplied from the water supply pipe 78 to be collected in the collecting means 75.

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 to those skilled in the art. Will understand.

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

Drum washing machine having a condensation type drying apparatus according to the present invention configured as described above is cool water is immersed in the inner wall of the circulation pipe, the cooling fins are immersed in the fresh water coolant so that the air in contact with the collecting means and the cooling fins There is an advantage that can easily collect the moisture in the water to reduce the time and cost required for the drying operation.

Claims (7)

cabinet; A tub installed inside the cabinet to wash water; A circulation pipe installed in the tub to allow air inside the tub to circulate inside and outside the tub; A blowing fan installed in the circulation pipe; A heater installed in the circulation pipe to heat air injected into the tub; A water supply pipe installed in the circulation pipe to inject cooling water into air discharged to the outside of the tub; And Condensation type drying apparatus characterized in that it comprises a collecting means for the fresh water is installed in the circulation pipe to be sprayed on the inner wall of the circulation pipe. The method of claim 1, And a cooling fin installed at the collecting means to perform heat transfer between the cooling water and the air. The method of claim 1, The collecting means is a condensation type drying apparatus, characterized in that consisting of a partition wall protruding from the inner wall of the circulation pipe extending upward. The method of claim 3, wherein The collecting means is a condensation type dryer, characterized in that it comprises a drain pipe extending to the outside of the circulation pipe, and a drain valve installed in the drain pipe. The method of claim 2, The cooling fin includes a main body formed in a cylindrical shape in which upper and lower ends are opened to be fitted between the collecting means and the inner wall of the circulation pipe, and an endothermic part that absorbs thermal energy in air formed at an end of the main body and passed through. Condensation drying apparatus, characterized in that. The method of claim 5, The heat absorbing portion is a condensation type drying apparatus, characterized in that consisting of ribs arranged radially. cabinet; A tub installed inside the cabinet to wash water; A circulation pipe installed in the tub to allow air inside the tub to circulate inside and outside the tub; A blowing fan installed in the circulation pipe; A heater installed in the circulation pipe to heat air injected into the tub; A water supply pipe installed in the circulation pipe to inject cooling water into air discharged to the outside of the tub; And And a condensation type drying device including a collecting means installed in the circulation pipe to spray fresh water injected into the circulation pipe into the inner wall of the circulation pipe.

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