KR101336706B1 - Condensation type washing-drier - Google Patents

Abstract

The present invention relates to a condensation type laundry dryer, comprising: a cabinet; An outer tub installed inside the cabinet; A rotating tub rotatably installed in the outer tub; A circulation duct for introducing air drawn out from one side of the outer tank back into the other side of the outer tank; And a water supply unit for supplying condensed water to a plurality of locations in the outer tank, wherein the water supply unit includes a first branch part and a second branch part branched to supply water to a plurality of rear ends of the outer tank. Branch pipe; And a deceleration part disposed in the first branch part and the second branch part to apply resistance to the flow of water, respectively. Thereby, heat exchange efficiency can be improved and drying time can be shortened.

Description

Condensation Type Laundry Dryer {CONDENSATION TYPE WASHING-DRIER}

1 is a cross-sectional view of a conventional condensation type laundry dryer,

2 is a cross-sectional view of the condensation type laundry dryer according to the first embodiment of the present invention;

3 is a cross-sectional view taken along line III-III of FIG. 2;

4 is a view showing a modification of the branch pipe of FIG.

5 is a cross-sectional view taken along the line VV of FIG. 4;

Figure 6 is a perspective view of the installation state of the branch pipe of the condensation type laundry dryer according to the second embodiment of the present invention,

7 is a perspective view showing the inside of the outer tub of FIG.

8 is a cross-sectional view of a condensation type laundry dryer according to a third embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110: cabinet 120: outer tank

150: rotating tank 161: circulating duct

163: circulation fan 165: heater

170: water supply unit 171: branch pipe

173: first branch 174: second branch

181: water supply pipe 183: on-off valve

The present invention relates to a condensation type laundry dryer, and more particularly, to a condensation type laundry dryer which improves heat exchange efficiency to shorten the drying time.

In general, a laundry dryer is a type of washing machine that can dry laundry after washing. Some of these laundry dryers have a condensation type laundry dryer that draws air from the inside of the outer tank to remove moisture from the air by condensation water, and then heats the same.

1 is a cross-sectional view of a conventional condensation type laundry dryer. As shown in this figure, the condensation type laundry dryer includes a cabinet 11 forming an accommodation space therein, an outer tub 21 accommodated in the cabinet 11, and an interior of the outer tub 21. A rotary tub 31 rotatably installed in the tub, a condensation duct 41 formed outside the tub 21 so that air containing moisture extracted from the tub 21 can be condensed, and air flow The heating duct 51 is connected to the downstream side of the condensation duct 41 along the direction and heats air to provide the inside of the outer tank 21, and the air of the outer tank 21 is connected to the condensation duct 41. And a circulation fan 53 for circulating along the heating duct 51.

An opening 12 is formed at one side of the cabinet 11 to allow laundry to enter and exit, and a door 14 is provided at one side edge of the opening 12 to open and close the opening 12. have.

Inside the cabinet 11, a cylindrical outer tub 21 having one side open to accommodate washing water is disposed. Upper and lower sides of the outer tub 21 are provided with a spring 23 and a damper 24 to support the outer tub 21, respectively.

A drainage passage 25 having a drain pump 26 is formed in the lower region of the outer tub 21, and a driving motor 27 is provided at one side of the outer tub 21 so as to rotationally drive the rotary tub 31. Is provided. The inside of the outer tub 21 is rotatably coupled to the cylindrical rotating tub 31 of which one side is opened, the plurality of through holes 32 through the plate surface to the circumferential surface of the rotating tub 31 ) Is formed. A plurality of lifts 33 are provided in the rotary tub 31 to be spaced apart from each other along the circumferential direction so as to move the laundry upward.

On the other hand, a condensation duct 41 is coupled to the rear of the outer tank 21 to draw condensed air to the outside, and condensed water (hereinafter referred to as condensed water) inside the upper region of the condensation duct 41. Condensed water supply pipe 43 is installed to supply. The condensate water supply pipe 43 is provided with a condensate valve 44 to open and close the condensate flow path therein. One end of the condensation duct 41 is connected to the other end of the heating duct 51 connected to the front region of the outer tub 21 so that the other end of the heating duct 51 is connected to each other. A circulation fan 53 is installed to circulate the air inside. The heater 55 is provided downstream of the circulation fan 53 so as to heat air.

By the way, in such a conventional condensation type laundry dryer, the condensed water is dropped inside the relatively narrow condensation duct 41, so that the condensed water falls rapidly without being sufficiently heat exchanged with the air containing moisture, Since it is discharged to the condensate is not only increases the amount of use, but also has a problem that the drying time is extended.

Therefore, an object of the present invention is to provide a condensation type laundry dryer which can improve the heat exchange efficiency and shorten the drying time.

In addition, another object of the present invention is to provide a condensation type laundry dryer capable of reducing the amount of condensed water and electric power used.

In addition, another object of the present invention is to provide a condensation type laundry dryer capable of uniformly providing condensed water to a plurality of places to improve condensation efficiency.

In order to achieve the object as described above, the present invention, the cabinet; An outer tub installed inside the cabinet; A rotating tub rotatably installed in the outer tub; A circulation duct for introducing air drawn out from one side of the outer tank back into the other side of the outer tank; And a water supply unit for supplying condensed water to a plurality of locations in the outer tank, wherein the water supply unit includes a first branch part and a second branch part branched to supply water to a plurality of rear ends of the outer tank. Branch pipe; And a deceleration part disposed in the first branch part and the second branch part to apply resistance to the flow of water, respectively.
Here, the reduction unit may be disposed in the center of the first branch portion and the second branch portion and supported by a plurality of support ribs.
The first branch portion may be configured such that water is disposed toward the inner surface of the rear end of the outer tub, and the second branch portion is disposed so that water is disposed toward the inner surface of the cylindrical portion of the outer tub to supply water.
On the other hand, according to another field of the present invention, the cabinet; An outer tub installed inside the cabinet; A rotating tub rotatably installed in the outer tub; A circulation duct for introducing air drawn out from one side of the outer tank back into the other side of the outer tank; And a water supply unit for supplying condensed water to a plurality of places inside the outer tank, wherein one end of the water supply unit is configured to supply water to the inner surface of the rear end of the outer tank, and the other end of the cylindrical part of the outer tank. It is provided with a condensation type laundry dryer, characterized in that it comprises a branch pipe arranged to supply water.
Here, it may further include a deceleration unit disposed in each of the branch pipe to apply a resistance to the flow of water.
On the other hand, according to another field of the present invention, the cabinet; An outer tub installed inside the cabinet; A rotating tub rotatably installed in the outer tub; A condensation duct having one end connected to the outer tub and the other end extending upward; A circulation duct having one end connected to the condensation duct and the other end connected to the outer tank such that air passing through the condensation duct is introduced into the outer tank; A condensation type laundry dryer includes a water supply unit configured to supply condensation water to the inside of the outer tank and the condensation duct.

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Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view of a condensation type laundry dryer according to a first embodiment of the present invention, FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2, and FIG. 4 is a view showing a modification of the branch pipe of FIG. 2. 5 is a cross-sectional view taken along the line VV of FIG. 4. As shown in FIG. 2, the condensation type laundry dryer includes a cabinet 110 forming an accommodation space therein, an outer tub 120 installed inside the cabinet 110, and the outer tub 120. A rotating tub 150 rotatably installed therein, a circulation duct 161 for introducing air drawn from one side of the outer tub 120 back to the other side of the outer tub 120, and the outer tub ( It is comprised including the water supply part 170 which supplies the condensation water to a some location inside the 120. As shown in FIG.

An opening 112 is formed at one side of the cabinet 110 to allow laundry to enter and exit, and a door 114 is coupled at one side of the opening 112 to open and close the opening 112. Inside the cabinet 110, an outer tub 120 having a tubular shape having one side open is accommodated to be buffered by a spring 122 and a damper 124. At the bottom of the outer tub 120, a drain passage 125 having a drain pump 127 is formed. The rear end of the outer tub 120 is provided with a drive motor 128 for the rotating tub 150.

The duct connecting portion 132 is formed to protrude upward in the rear upper region of the outer tub 120 so that the inflow side of the circulation duct 161 connected to the front upper region of the outer tub 120 can be connected to each other. . Here, the duct connecting portion 132 protrudes upward at a point spaced to one side with respect to the center line L _VC along the up and down direction of the outer tub 120 so as to prevent a collision with the cabinet 110, and the outer tub 120 during the plane projection. It is formed so as not to protrude toward the rear side of the cabinet 110 compared to the rear end of the). In the upstream side of the circulation duct 161 along the flow direction of the air, a circulation fan 163 is rotatably installed to circulate the air, and a downstream side of the circulation fan 163 to heat the heater ( 165 is disposed.

The circumferential surface of the rotating tank 150 is formed with a plurality of through-holes 153 that are penetrated so that the inside and the outside can communicate with each other. 154 is provided.

On the other hand, the shaft hole 133 is formed in the center of the rear end of the outer tub 120 so that the rotating shaft of the rotating tub 150 can be inserted, the concave-convex portion 135 is formed around the shaft hole 133 Formed. The uneven part 135 includes a plurality of first ribs 136 protruding from the rear end of the outer tub 120 and extending along the radial direction, and protruding from the rear end of the outer tub 120 and along the circumferential direction. It has a plurality of second ribs 137 extending to a predetermined length.

A water supply unit 170 is installed in the rear upper region of the outer tub 120 to allow water to fall from a plurality of locations along the inner surface of the rear end of the outer tub 120. The water supply unit 170, the branch pipe 171 having a first branch portion 173 and the second branch portion 174 and the water to the branch pipe 171 so that the water flows by branching. A water supply pipe 181 for supplying and an on-off valve 183 for opening and closing the water supply pipe 181 are provided. The branch pipes 171 have respective ends of the first branch portion 173 and the second branch portion 174 so that the water discharged flows along the inner surface of the rear end portion of the outer tub 120. Is provided so as to face the inner surface of the rear end of the head).

As shown in FIG. 4, the first upper portion of the outer tub 120 is provided with resistance to water flowing along the interior of the first branch 193 and the second branch 194. The branch pipe 191 may be configured to include a branch pipe 191 having a deceleration part 195 for uniforming the amount of water discharged through the branch part 193 and the second branch part 194. The reduction units 195 are respectively disposed at the centers of the branch portions 193 and 194 so as to reduce internal flow cross-sectional areas thereof, and are supported by the plurality of support ribs 197. In this case, the amount of condensed water discharged through the two branch portions 193 and 194 may be reduced to reduce the amount of condensed water, and the pressure may be uniformly applied, thereby discharging excessively condensed water to one side to be discharged without sufficient heat exchange. The phenomenon can be suppressed. Here, the reduction unit 195 may be formed to intentionally supply more water to any one of the branch portions 193 and 194 of the two branch portions 193 and 194.

By such a configuration, when the laundry is to be dried, the circulation fan 163 is driven to circulate the air inside the outer tub 120, and the heater may be heated. 165 is operated. The air heated by the heater 165 flows into the inside of the rotating tub 150 and comes into contact with the laundry to contain moisture of the laundry, and thus the rotating tub (153) through the through hole 153 of the rotating tub 150. Out of 150).

On the other hand, when the drying process of the laundry is started, the on-off valve 183 is opened, the water flowing through the water supply pipe 181 is the first branch 173 and the second branch (173) of the branch pipe 171 ( 174). The spilled water falls along the inner surface of the rear end of the outer tub 120, where the first rib 136 and the second rib 137 not only increase the drop moving distance of the water but also delay the drop speed. Improve heat exchange efficiency.

Air leaked to the outside of the rotating tank 150 is condensed by the cooling action of the water supplied by the water supply unit 170 in the space between the rotating tank 150 and the outer tank 120 to remove moisture It is sucked into the circulation duct 161 in a state. The air sucked into the circulation duct 161 is heated by the heater 165 and then introduced into the rotating tub 150 to be in contact with the laundry.

Figure 6 is a perspective view of the installation state of the branch pipe of the condensation type laundry dryer according to the second embodiment of the present invention, Figure 7 is a perspective view showing the interior of the outer tub of Figure 6. The same reference numerals are used for the same or equivalent parts as those of the above-described embodiment and the drawings, and the description thereof will be omitted for simplicity. The condensation type laundry dryer includes: a cabinet (110) forming an accommodation space therein, an outer tub (120) installed inside the cabinet (110), and rotatably housed in the outer tub (120). The rotary tub 150, the circulation duct 161 for introducing the air drawn from one side of the outer tub 120 back to the other side of the outer tub 120, and a plurality of places in the interior of the outer tub 120 It is configured to include a water supply unit 210 for supplying condensed water.

The outer tub 120 has a cylindrical portion 121a having a predetermined diameter and a rear end 121b formed to block the rear of the cylindrical portion 121a. In the rear upper region of the cylindrical portion 121a, a duct connecting portion 132 is formed so that the circulation duct 161 can be connected.

On the other hand, the water supply unit 210 is installed in the upper upper region of the outer tub 120 so as to spray water on the inner surface of the cylindrical portion 121a and the rear end 121b of the outer tub 120, respectively. The water supply part 210 includes a branch pipe 211 having a first branch part 213 and a second branch part 214, and a water supply pipe 181 connected to the branch pipe 211 to supply water. And an opening / closing valve 183 for opening and closing the water supply pipe 181. The first branch portion 213 is installed such that water is directed toward the rear end 121b of the outer tub 120, and the second branch portion 214 has water facing the inner surface of the cylindrical portion 121a. It is installed to Here, the first branch portion 213 and the second branch portion 214 are provided with a deceleration portion 215 for applying resistance to the flow of water, respectively.

By such a configuration, when the drying process of the laundry is started, the opening / closing valve 183 is opened, and the water supplied through the water supply pipe 181 is connected to the first branch portion 213 and the second branch portion 214. Through the inner surface of the rear end 121b of the outer tub 120 and the inner surface of the cylindrical portion 121a of the outer tub 120, respectively. As a result, the air containing the moisture in contact with the laundry in the rotating tub 150 is condensed by contacting the inner surface of the rear end 121b and the cylindrical portion 121a of the outer tub 120 or the first air. The water is quickly removed by condensation by directly contacting the water sprayed through the branch portion 213 and the second branch portion 214. On the other hand, the air from which moisture is removed is moved to the circulation duct 161 and is heated by the heater 165 to repeat the process introduced into the rotating tank 150.

8 is a cross-sectional view of a condensation type laundry dryer according to a third embodiment of the present invention. As shown in FIG. 8, the condensation type laundry dryer includes: a cabinet; An outer tub 120 installed inside the cabinet; A rotating tub 150 rotatably installed in the outer tub 120; A condensation duct 220 having one end connected to the outer tub 120 and the other end extending upwardly; One end is connected to the condensation duct 220 and the other end is connected to the outer tub 120 so that the air passing through the condensation duct 220 is introduced into the outer tub 120. Wow; It is configured to include a water supply unit 250 for supplying condensation water in the interior of the outer tub 120 and the condensation duct 220.

An opening 112 and a door 114 are provided on the front surface of the cabinet 110, and the outer tub 120 is supported by a spring 122 and a damper 124 inside the cabinet 110. . The rotating tub 150 is rotatably installed inside the outer tub 120. At the bottom of the outer tub 120, a drain passage 125 having a drain pump 127 is formed.

A lower end of the condensation duct 220 is connected to a rear region of the outer tub 120 so that air inside the outer tub 120 can be drawn out and condensed. The other end of the condensation duct 220 extends upward, and one end of the circulation duct 240 is connected to an upper end of the condensation duct 220. The other end of the circulation duct 240 is connected to the front region of the outer tub 120. A circulation fan 241 is installed at the boundary area between the condensation duct 220 and the circulation duct 240 so as to draw the internal air of the outer tub 120 and introduce it back into the outer tub 120. The inside of the circulation duct 240 is provided with a heater 243 to heat the air.

On the other hand, the water supply unit 250 is installed in the rear upper region of the outer tub 120 to supply water to the interior of the outer tub 120 and the condensation duct 220 at the same time. The water supply part 250 includes a branch pipe 251 having a first branch part 253 and a second branch part 254, a water supply pipe 181 connected to the branch pipe 251, and the water supply pipe ( 181 is provided with an on-off valve 183 for opening and closing. The first branch part 253 is connected to the outer tank 120 to discharge water into the outer tank 120, and the second branch part 254 is inside the condensation duct 220. It is connected to the outer tank 120 to discharge the water into. An end portion of the second branch portion 254 is connected to the rear end 121b of the outer tub 120 so that water discharged along the inner surface of the rear end 121b of the outer tub 120 may fall. Here, different water supply units may be installed to supply water to the inside of the outer tub 120 and the inside of the condensation duct 220, respectively.

By such a configuration, when the laundry is to be dried, the circulation fan 241 is driven to circulate the air in the outer tub 120, and the heater may be heated. 243 is operated. The air heated by the heater 243 flows into the inside of the rotating tub 150 and comes into contact with the laundry to contain moisture of the laundry, so that the rotating tub (153) passes through the through hole 153 of the rotating tub 150. Out of 150).

On the other hand, when the drying process of the laundry is started, the on-off valve 183 is opened, the water flowing through the water supply pipe 181 is the first branch portion 253 and the second branch portion (253) of the branch pipe 251 ( 254). As a result, some of the air leaked to the outside of the rotary tub 150 is cooled by the water discharged through the first branch 253 between the rotary tub 150 and the outer tub 120. Condensation removes moisture. The air introduced into the condensation duct 220 is condensed by the cooling action of the water discharged through the second branch portion 254 to remove moisture. The air from which moisture is removed while passing through the condensation duct 220 is heated by the heater 243 via the circulation fan 241 to be introduced into the rotary bath 150 again in a high temperature dry state. Will repeat.

As described above, according to the present invention, there is provided a condensation-type laundry dryer which can increase the cooling area by supplying water to a plurality of places and shorten the drying time.

In addition, the condensation type laundry dryer according to the present invention not only widens the cooling area by allowing the condensed water to fall along the inner surface of the outer tank, but also extends the moving path of the condensed water and lengthens the heat exchange time, thereby increasing heat exchange efficiency. .

In addition, according to the present invention, the water provided from a single water supply pipe is branched and supplied to a plurality of locations, and a deceleration section is formed at each branch of the branch pipe to obtain an effect of increasing the cooling area by branching. In addition to reducing the drying time according to the increase in the condensation efficiency is provided a condensation type laundry dryer that can reduce the power consumption.

Claims (6)

Cabinets; An outer tub installed inside the cabinet; A rotating tub rotatably installed in the outer tub; A circulation duct for introducing air drawn out from one side of the outer tank back into the other side of the outer tank; And a water supply unit for supplying condensed water to a plurality of locations inside the outer tub. The water supply unit, A branch pipe having a first branch portion and a second branch portion branched to supply water to the rear end of the outer tub; And And a deceleration part disposed in the first branch part and the second branch part to apply resistance to the flow of water, respectively. The method of claim 1, The deceleration unit is disposed in the center of the first branch and the second branch portion condensation type laundry dryer, characterized in that supported by a plurality of support ribs. The method of claim 1, Wherein the first branch is the water is disposed toward the inner surface of the rear end of the outer tank, the second branch is condensed laundry dryer, characterized in that the water is disposed toward the inner surface of the cylindrical portion of the outer tank to supply water. Cabinets; An outer tub installed inside the cabinet; A rotating tub rotatably installed in the outer tub; A circulation duct for introducing air drawn out from one side of the outer tank back into the other side of the outer tank; And a water supply unit for supplying condensed water to a plurality of locations inside the outer tub. The water supply unit is a condensation type laundry dryer, characterized in that one end is arranged to supply water to the inner surface of the rear end of the outer tank and the other end is arranged to be able to supply water to the cylindrical portion of the outer tank. 5. The method of claim 4, Condensation-type laundry dryer characterized in that it further comprises a deceleration portion disposed in each of the branch pipe to apply a resistance to the flow of water. Cabinets; An outer tub installed inside the cabinet; A rotating tub rotatably installed in the outer tub; A condensation duct having one end connected to the outer tub and the other end extending upward; A circulation duct having one end connected to the condensation duct and the other end connected to the outer tank such that air passing through the condensation duct is introduced into the outer tank; Condensation type laundry dryer comprising a water supply unit for supplying condensation water to the inside of the outer tank and the condensation duct.

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