KR20120040380A - Laundry machine having a drying function - Google Patents

Abstract

PURPOSE: A laundry machine having a drying function is provided to condense moisturized air without using an additional condensing duct. CONSTITUTION: A heater and a ventilation fan generates heated air. A drying duct guides the heated air to the inside of a drum(500). Coolant supply units(180,182) supply the coolant to the outer surface of the drum. The drum is rotated at a predetermined speed in order to prevent the penetration of the coolant to the inside of the drum.

Description

Drying machine having a drying function

The present invention relates to a dry laundry machine, and more particularly, to a dry laundry machine that improves the condensation structure of a laundry machine including a drying function.

In general, the washing machine is a product that removes various contaminants attached to clothes and bedding by using the emulsification of the detergent and friction action of the water flow due to the rotation of the pulsator or drum and impact on the laundry. Recently appeared automatic washing machine automatically proceeds a series of steps leading to a washing course, rinsing course, dehydration course, etc. without the user's operation in the middle.

Recently, the demand for a drum-type washing machine, which can reduce the overall height as compared to the pulsator washing machine that rotates with the washing tank standing, and hardly causes the laundry to be twisted and wrinkles on the laundry, is increasing. Is in.

Briefly describing the structure of the drum-type laundry machine as described above, the main body cabinet forming the outer shape, the tub which is located inside the main cabinet and supported by the damper and the spring, the wash water is stored, and the inner side of the tub The drum is largely divided into a cylindrical drum into which laundry can be put, and the drum receives a driving force by a driving unit for washing laundry put into the drum.

The drum type laundry machine having the structure described above inevitably causes vibration due to the rotational force of the drum and the eccentricity of the laundry when the drum is rotated to wash and dehydrate the laundry put into the drum. The vibration generated is transmitted to the outside through the tub and the cabinet.

Accordingly, in order to prevent the vibration transmitted from the drum to the tub to the cabinet, a spring and a damper are essentially provided between the tub and the cabinet to cushion and mitigate the vibration of the tub.

On the other hand, in the case of the drum-type laundry machine as described above is not installed separately, but installed in the existing installation environment (for example, sink environment or built-in environment). Therefore, in the case of drum-type washing machine should be limited to fit the installation environment in which the size is installed.

As described above, in the drum type washing machine, the internal structure is limited by the spring and the damper structure for reducing vibration between the tub and the cabinet, and the washing machine itself is limited due to the limited installation environment of the washing machine. Changing the size is limited.

Recently, many studies and developments are being made on increasing the washing capacity of the washing apparatus in order to increase the washing amount and the user's convenience. However, in the structure of the conventional drum type washing machine due to the above-described limitations, there are many difficulties in increasing the size of the tub in order to increase the washing capacity.

On the other hand, the washing machine has a laundry-only device having only a washing function, and there is a combined drying device having both washing and drying functions.

Drying combined laundry device may be divided into a drum type drying device for drying the drying object by rotating and tumbling using a drum that can be rotated according to the structure or form, and a cabinet type drying device for hanging and drying the drying object.

Among them, in the case of a drum-type dry washing machine, a cabinet forming an appearance, a tub installed inside the cabinet, and a drum rotatably installed inside the tub are provided.

In addition, for the drying function, the outside of the tub is provided with a drying duct through which drying air is circulated, a heater and a blowing fan installed inside the drying duct, and a condensation duct through which condensed wet air used for drying is circulated. The condensation duct is provided with separate air or water cooling means for condensation of the wet air.

However, the conventional drum type drying apparatus has a problem that the internal structure of the cabinet is complicated and the manufacturing cost increases because a separate condensation duct is to be provided.

The present invention is to solve the problems as described above, to increase the capacity of the tub while maintaining the external size applied to the conventional washing machine, and to improve the support structure that can effectively support the increased tub capacity It is to provide a dry cleaning machine.

In addition, the present invention is to solve the problems as described above, to provide a combined drying device capable of condensing wet air efficiently without a separate condensation duct.

Drying and combined laundry device according to an embodiment of the present invention for achieving the above object is a tub for washing water, the drum rotatably installed in the tub and receiving a drying object, a heater and a blowing fan to generate hot air And a cooling water supply unit configured to form a condensation surface on the surface of the drum by supplying a cooling duct to guide the hot air into the drum and an outer circumferential surface of the drum, and simultaneously supplying the cooling water to the cooling water of the drum. It is preferable to rotate the drum at a predetermined speed so as not to flow inside.

The rotational speed of the drum is preferably a speed before the drying object is attached to the inner wall of the drum.

The rotational speed of the drum is preferably between 40 ~ 110rpm. Alternatively, the rotation speed of the drum is preferably between 50 ~ 70rpm.

Cooling water supplied from the cooling water supply means is preferably the wash water.

The cooling water supply means is preferably supplied from a branch hose branched from a water supply hose for supplying the wash water.

The branch hose is preferably connected to the outer peripheral surface of the tub.

Preferably, the inner peripheral surface of the tub further includes an injection nozzle for diffusing and spraying the cooling water connected to the branch hose.

The cooling water is preferably spaced apart from the center of the drum to fall on the outer peripheral surface of the drum.

The drum is preferably rotated in a direction opposite to the falling direction of the cooling water falling to the drum.

The outer circumferential surface of the tub is preferably further provided with a hot air outlet for returning air in the tub to the drying duct.

The inner peripheral surface of the tub is preferably further provided with a filter in communication with the hot air outlet.

The hot air outlet is preferably further provided with a filter washing unit for spraying the washing water to the filter.

The cooling water supply means is preferably the filter washing unit for supplying the washing water.

The hot air outlet is formed on the upper rear of the tub, it is preferable that the hot air inlet is further formed on the front upper portion of the tub.

The hot air inlet is preferably formed to be located in front of the opening formed in the drum.

A rotation shaft connected to the drum, a bearing housing for rotatably supporting the rotating shaft, a motor for rotating the rotating shaft, and a bearing unit connected to the bearing housing, preferably further include a suspension unit for buffering vibration of the drum.

Sealing the rear portion of the tub to prevent leakage from the tub and the drive unit having a rotary shaft connected to the drum, a bearing housing for rotatably supporting the rotary shaft, and a motor for rotating the rotary shaft and the tub, Preferably it further comprises a sealing member that allows the drive to move relative to the tub.

It further comprises a suspension unit for supporting the drum, the tub is preferably supported rigidly than the drum is supported by the suspension unit.

On the other hand, in one embodiment of the washing apparatus according to the present invention, the suspension assembly may be connected to the driving unit may be made to buffer the vibration of the drum. Conventionally, the suspension assembly is connected to the tub to buffer the vibration of the tub and drum together, but the washing apparatus according to the present invention may have a structure in which the vibration of the drum and the tub are separated. The suspension assembly may include a radial bracket connected to the bearing housing and extending in a radial direction. In addition, the radial bracket may include an axial bracket extending forward or extending in the direction of the rotation axis of the drum. Such a radial bracket and the axial bracket may be provided in a pair of left and right. The suspension unit may include a suspension unit including a plurality of suspensions connected to the axial bracket or the bearing housing.

On the other hand, the tub may be supported more rigidly than the drum is supported by the suspension assembly. A further example of the tub being supported by a more rigid structure than the suspension assembly is shown below.

First, the tub may be formed integrally with at least a part of the cabinet.

Second, it may be connected and supported by screws, rivets, rubber bushings, or the like, or may be fixed and supported by welding, adhesive sealing, or the like. In this case, such a connecting member has a rigidity higher than that of the suspension assembly with respect to the vertical direction, which is the main vibration direction of the drum.

On the other hand, a flexible member may be included to reduce the transmission of vibration of the drum to the tub. The flexible member can be made to flexibly connect the tub and the drive to prevent leakage of the drive and the tub and to allow the drive to move relative to the tub. Such a flexible member may be made of a rear gasket.

According to the combined dry laundry apparatus according to the present invention, the capacity of the tub can be increased while maintaining the external size applied to the existing washing apparatus, and the support structure capable of effectively supporting the tub with increased capacity can be improved. It works.

In addition, according to the combined dry laundry apparatus according to the present invention, there is an effect that can efficiently condense the wet air without a separate condensation duct.

1 is an exploded perspective view showing a combined dry laundry apparatus according to an embodiment of the present invention.
Figure 2 is a perspective view showing a tub of a dry laundry machine according to an embodiment of the present invention.
Figure 3 is a perspective view showing the internal structure of the tub of the dry-use laundry machine according to an embodiment of the present invention.
4 to 5 is a cross-sectional view showing a condensation structure of the combined dry laundry apparatus according to an embodiment of the present invention.
6 is a perspective view showing a tub of a dry laundry machine according to another embodiment of the present invention.
7 is a cross-sectional view showing a filter washing unit of the combined dry laundry apparatus according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the combined dry laundry apparatus according to an embodiment of the present invention.

In describing the present invention, the names of the elements defined are defined in consideration of functions in the present invention. Therefore, it should not be understood as a meaning limiting the technical components of the present invention. In addition, each name defined in each component may be referred to as other names in the art.

As shown in FIG. 1, the combined dry laundry apparatus according to an embodiment of the present invention includes a cabinet 10 having a large appearance, a tub 100 installed inside the cabinet 10, and a tub 100. It is configured to be rotatable in the interior of the drum 500 is configured to accommodate the object to be dried. In the washing apparatus of the present invention, the tub 100 is fixedly supported to the cabinet 10.

The drying function includes a drying duct 200 through which high temperature dry air is circulated, and a heater 220 and a blowing fan 210 installed inside the drying duct 200 to heat and blow air. do.

Tub 100 is composed of a front tub 110 and a rear tub 120 constituting the front and rear, the tub back 130 forming a rear wall of the rear tub 120.

The rear tub 120 has an opening formed at the rear thereof, and the rear gasket 400, which is a flexible member, is coupled to the opening. The rear gasket 400 is connected to the tub back 130 in the radially inner side. Tub back 130 is inserted through the rotating shaft 560 to be described later.

The rear gasket 400 is connected to the tub back 130 and the rear tub 120 so as to be sealed, respectively, so that the wash water in the tub 100 is not leaked. The tubbag 130 vibrates with the drum 500 when the drum 500 rotates, but the tubbag 130 does not interfere with the rear tub 120 because the rear gasket 400 may be flexibly deformed. Allow your opponent to exercise. The back gasket 400 may have a curved or pleated portion that may extend to a sufficient length to allow relative movement of the tub back 130.

The drum 500 includes a drum front 510, a drum center 520, and a drum bag 530, and a balancer 540 is installed at the front and the rear of the drum 500, respectively. The drum bag 530 is connected to the spider 550, and the spider 550 is connected to the rotation shaft 560. The drum 500 is rotated in the tub 100 by the rotational force transmitted through the rotation shaft 560. A plurality of through holes 502 (see FIG. 7) are formed on the circumferential surface of the drum 500 to discharge the washing water generated from the laundry during washing or dehydration.

The bearing housing 600 is coupled to the rear surface of the tub back 130. In addition, the bearing housing 600 rotatably supports the rotation shaft 560 between the motor and the tub back 130. The bearing housing 600 is supported with respect to the base portion of the cabinet 10 by the suspension unit 300 (see FIG. 1).

The suspension unit 300 includes three vertical dampers 310 and two inclined dampers 320 which are inclinedly supported in the front-rear direction. The suspension unit 300 is not connected to the base (not shown) of the cabinet 10 in a completely fixed manner, but is connected to allow a certain amount of elastic deformation to allow the drum 500 to move forward and backward and to the left and right.

That is, the suspension unit 300 is elastically supported to allow rotation to some extent in the front and rear and left and right with respect to the support point connected to the base. The three vertical dampers 310 installed vertically for such elastic support may be installed at the base of the cabinet 10 via a rubber bushing.

Here, three vertical dampers 310 vertically installed in the suspension unit 300 are spring cylinder dampers for elastically dampening the vibration of the drum 500, and the inclined dampers 320 installed at an inclined angle are disposed as follows. Cylinder damper for damping vibration.

That is, the vertically installed in the vibration system including the spring and the damping means serves as the spring and the obliquely installed may act as the damping means.

As described above, the tub 100 according to the embodiment of the present invention is fixedly installed in the cabinet 10, and the vibration of the drum 500 is buffered and supported by the suspension unit 300. Substantially, the support structure of the tub 100 and the drum 500 may be referred to as a separate form, and the tub 100 may also be referred to as a form that does not vibrate even when the drum 500 vibrates.

Meanwhile, as shown in FIGS. 2 and 3, the tub 100 has a hot air inlet 140 formed at an upper front side thereof, and a hot air outlet 150 is formed at a side of the upper rear side.

The hot air inlet 140 is formed in front of the upper portion of the tub 100 to be located in front of the front opening of the drum 500. The hot air inlet 140 and the hot air outlet 150 are formed to be parallel to each other so that the wind direction forms an angle within 10 degrees of each other. The hot air inlet 140 and the hot air outlet 150 are communicated by the drying duct 200.

Drying duct 200 is installed on the top of the tub 100 and both ends are in direct communication with the tub 100. Unlike the conventional laundry 1 apparatus according to an embodiment of the present invention, since the condensation duct is not provided separately, the circulation passage is formed in the order of 'dry duct-drum-tub-dry duct'.

The drying duct 200 is connected to the hot air inlet 140 and the hot air outlet 150, a blowing fan 210 for blowing air to the drum 500 therein, and a heater 220 for heating the blown air. Is installed.

As the blower fan 210 operates, air in the tub 100 introduced from the hot air outlet 150 flows into the drying duct 200, and is heated in the drying duct to be heated again through the hot air inlet 140. And flows into the drum 500.

On the other hand, the hot air passing through the wet clothing, etc. inside the drum 500 for drying may contain a foreign material such as lint. A filter 173 (see FIG. 3) may be installed to filter out the foreign matter.

The filter 173 is installed where it is exposed to the inside of the tub 100. In particular, the filter 173 is located on the circumferential surface of the tub 100. Preferably, the hot air outlet 150 is installed along the inner circumferential surface of the tub 100 on the circumferential surface of the tub 100.

On the other hand, when the drum 500 rotates, a rotary airflow of air is formed around the drum 500 by the rotation. The rotary air impinges on the filter 173 and foreign matters such as lint on the filter 173 may be removed.

Here, when there is wet laundry inside the drum 500, water from the laundry may be radiated to the inner wall surface of the tub 100 through the through hole 502 of the drum 500. As the water radiated impinges on the filter 173, the washing effect of the filter 173 may be enhanced.

On the other hand, in order to further increase the cleaning effect of the filter 173, a filter washing unit 170 for supplying water to the filter 173 may be added. To this end, as shown in FIG. 2, a branch hose 183 branched from a water supply hose 180 provided to supply water into the tub 100 and connected to the water supply port 152 of the hot air outlet 150 is included. can do.

Here, the water supplied from the branch hose 183 is supplied to the outer surface, which is the opposite surface of the inner surface toward the inside of the tub 100 of the filter 173. The water to be supplied flows into the tub 100 while washing the filter 173.

As such, the washing water for washing the filter 173 may be watered together when the washing water is supplied to the tub 100. Alternatively, a valve may be installed in the branch hose 183 or the branch hose 183 in the branch hose 183 from the water supply hose 180. By such a valve, it is possible to adjust the time point at which the washing water is supplied to the filter 52.

On the other hand, the combined drying device of the present invention constitutes a circulating drying system in which hot air circulates without a condensation duct conventionally installed outside the tub 100. That is, in the conventional dry washing machine according to the prior art to produce condensed water using a separate condensation duct, but in the dry washing machine of the present invention the drum 500 as a condensation surface without a separate condensation duct, the outer surface of the drum 500 Will produce condensate.

To this end, in the present invention, a cooling water is used to cool the drum 500. Here, the cooling water may use washing water supplied for washing or washing water supplied for cleaning the filter, or cooling water supplied separately.

Hereinafter, the condensation system of the combined dry laundry device of the present invention as described above will be described in detail with reference to embodiments.

4 to 5 is a cross-sectional view showing a condensation structure of the combined dry laundry apparatus according to an embodiment of the present invention.

First, a case in which condensed water is generated in the drum 500 by cooling the drum 500 using water supplied to the washing water will be described with reference to FIG. 4.

Referring to Figures 2 and 4 dry combined laundry apparatus of the present invention is provided with a water supply hose 180 for supplying the washing water for washing. The water supply hose 180 supplies washing water into the tub 100 through a detergent box (not shown).

Here, the water supply hose 180 connected to the tub 100 may be connected to the front or outer peripheral surface of the tub. In the embodiment of the present invention to be connected to the outer peripheral surface of the tub 100 will be described as an embodiment. Alternatively, the water supply hose 180 may be branched to the front and outer peripheral surfaces of the tub 100, respectively. When the water supply hose 180 is branched and connected, each branched branch may additionally include a valve (not shown) for shielding the flow path of the wash water.

On the other hand, the wash water supplied from the water supply hose 180 connected to the outer circumferential surface of the tub 100 is formed to fall on the outer circumferential surface of the drum 500 located inside the tub 100. That is, the water supply hose 180 connected to the outer circumferential surface of the tub 100 is preferably located above the drum 500.

In addition, an injection nozzle 176 (see FIG. 5) for scattering the wash water supplied from the water supply hose 180 may be further provided at an end portion of the water supply hose 180 positioned above the drum 500. Washing water is sprayed to the outer circumferential surface of the drum 500 by the spray nozzle 176 to spray the surface of the drum 500 more broadly and quickly.

On the other hand, the washing water falling to the outer peripheral surface of the drum 500 flows along the outer peripheral surface of the drum 500 when washing the laundry is stored in the tub 100 serves as the washing water for washing the laundry. However, when the laundry is dried, the washing water falling to the outer circumferential surface of the drum 500 lowers the temperature of the drum 500 so that the drum 500 serves as a condensation plate.

Hereinafter, the drying process according to an embodiment of the present invention as described above will be described in detail through the examples.

First, as the drying process proceeds, dry air heated by the blowing fan 210 and the heater 220 of the drying duct 200 is supplied into the drum 500 through the hot air inlet 140, and the drum 500 The supplied dry air is circulated back to the drying duct 200 through the hot air outlet 150.

In the process as described above, the drying air is introduced into the drum 500 from the front of the drum 500 and used for drying the drying object, and then the drum 500 and the tub through the through hole 502 formed in the drum 500. Discharged between 100.

The hot dry air introduced into the drum 500 contacts the wet drying object accommodated in the drum 500 to take moisture from the drying object to dry the drying object. In this process, the hot dry air is discharged to the outside of the drum 500 through the through hole 502 formed in the wall surface of the drum 500 in a state of low temperature and high humidity air.

Air discharged to the outside of the drum 500 is discharged to the outside of the tub 100 through the hot air outlet 150 formed in the rear of the rear tub 120 while flowing between the tub 100 and the drum 500.

At this time, by supplying the cooling water to the outer peripheral surface of the drum 500 can increase the condensation effect. The supply of cooling water is performed using the water supply path of the washing water. That is, by supplying the wash water through the water supply path of the wash water, the wash water may contact the drum 500 to cool the drum 500. At this time, the washing water is supplied less than the washing water supply amount at the time of washing. That is, only the degree of wet the surface of the drum 500 is supplied to prevent the inside of the drum 500 (that is, the space in which the object to be dried) is introduced.

In addition, when the above-described coolant water supply position (or the position of the injection nozzle 176) is located eccentrically at the center of the drum 500, the supply timing of the coolant rotates in the opposite direction to the coolant water supply direction. Is preferably supplied when This is because when the rotational direction of the drum 500 is rotated in the direction opposite to the cooling water supply direction, the coolant diffuses widely on the surface of the drum 500 and remains on the surface of the drum 500 for a long time. This is because the cooling time of the drum can be maintained for a long time.

Accordingly, the outer wall of the drum 500 maintains a temperature much lower than that of the drum 500 by washing water supplied from a water supply hose (or spray nozzle).

On the other hand, when the washing water is supplied to the outer circumferential surface of the drum 500 to cool the drum 500, as described above, the wash water supplied to the outer circumferential surface of the drum 500 may flow through the through hole 502 formed in the drum. have. In this case, there is a problem in that the washing water supplied for generating condensed water comes into contact with the laundry to be dried, and rather, wets the laundry, thereby reducing the drying effect.

This increases the rotational speed of the drum 500 to prevent the wash water supplied to the outer circumferential surface of the drum 500 from flowing through the through hole 502 of the drum 500. At this time, the rotation speed of the drum 500 is rotated at a speed such that washing water remaining on the outer circumferential surface of the drum 500 does not flow into the drum 500 through the through hole 502.

For example, when the laundry is dried, it is preferable to maintain the rotational speed of the drum 500 at about 40 to 110 rpm. More preferably, the rotational speed of the drum is maintained at 50 to 70 rpm. Typically, when the drum 500 has a rotation speed of 110 rpm or more, the laundry in the drum 500 is attached to the inner circumferential surface of the drum 500 to rotate. In this case, laundry and dry air are not effectively mixed, which reduces the drying efficiency. Therefore, it is preferable to maintain the rotational speed of the drum 500 at 110 rpm or less. That is, in order to mix the laundry and dry air during drying of the laundry, the laundry should maintain a rotation speed such that the laundry does not adhere to the inner circumferential surface of the drum 500.

Therefore, as the drum 500 rotates, the washing water remaining on the outer circumferential surface of the drum 500 by the centrifugal force of the drum 500 (that is, the washing water supplied for cooling the drum 500) is discharged from the drum 500. It is prevented from flowing into the drum 500 through the through hole 502.

During the flow to the hot air outlet 150 through the above-described process, the heat exchange occurs through the outer peripheral surface of the drum 500, the moisture in the wet air is condensed on the outer peripheral surface of the drum 500. As the moisture is condensed, the wet air is discharged to the hot air outlet 150 in a dry state.

Hereinafter, the condensation system of the combined dry laundry machine according to another embodiment of the present invention will be described in detail with reference to the embodiment.

Figure 6 is a cross-sectional view showing a condensation structure of the combined dry laundry apparatus according to another embodiment of the present invention, Figure 7 is a cross-sectional view showing a filter washing unit of the combined dry laundry apparatus according to another embodiment of the present invention.

Another embodiment of the present invention describes a case in which the condensed water is generated in the drum 500 by cooling the drum 500 using water supplied to the filter washing water.

Referring to Figures 5 to 6, the combined dry laundry apparatus of the present invention to filter the lint generated during drying, and to remove the filtered lint on the filter 173 outside the filter 173 Filter cleaning unit 170 is provided for. The filter 173 is formed to correspond to an extension line on the inner circumferential surface of the tub 100 on the path of the hot air outlet 150 through which air is discharged. In addition, the filter washing unit 170 is formed to spray the washing water into the tub 100 from the inside of the hot air outlet 150.

Here, the supply of the washing water to the filter washing unit 170 is supplied by a branch hose 183 branched from the water supply hose 180. The branch hose 183 is branched from the water supply hose 180 to extend into the hot air outlet 150 to spray the washing water in the inward direction of the tub 100 from the hot air outlet 150 to clean the filter 173. Prepared.

In this case, when the branch hose 183 is branched from the water supply hose 180, a branched branch hose may further include a valve (not shown) for shielding the flow path of the washing water.

On the other hand, the wash water supplied from the filter washing unit 170 is introduced into the tub 100 after passing through the filter 173. Here, the position of the filter 173 is located on the upper side of the drum 500, the washing water passing through the filter 173 passes through the filter 173 and falls to the upper outer peripheral surface of the drum 500. In addition, the washing water for washing the filter 173 is ejected at a predetermined pressure for washing the filter 173. The washing water sprayed at a predetermined pressure may be diffused by the filter in the form of a net while passing through the filter 173 to cool the surface of the drum 500 more widely and quickly.

That is, the washing water supplied from the filter washing unit 170 serves as a washing water to remove lint remaining in the filter 173 when the filter 173 is washed. However, when the laundry is dried, the washing water falling to the outer circumferential surface of the drum 500 lowers the temperature of the drum 500 so that the drum 500 serves as a condensation plate.

Hereinafter, the drying process according to another embodiment of the present invention as described above will be described in detail through the examples.

First, as the drying process proceeds, dry air heated by the blowing fan 210 and the heater 220 of the drying duct 200 is supplied into the drum 500 through the hot air inlet 140, and the drum 500 The supplied dry air is circulated back to the drying duct 200 through the hot air outlet 150.

In the process as described above, the drying air is introduced into the drum 500 from the front of the drum 500 and used for drying the drying object, and then the drum 500 and the tub through the through hole 502 formed in the drum 500. Discharged between 100.

The hot dry air introduced into the drum 500 contacts the wet drying object accommodated in the drum 500 to take moisture from the drying object to dry the drying object. In this process, the hot dry air is discharged to the outside of the drum 500 through the through hole 502 formed in the wall surface of the drum 500 in a state of low temperature and high humidity air.

Air discharged to the outside of the drum 500 is discharged to the outside of the tub 100 through the hot air outlet 150 formed in the rear of the rear tub 120 while flowing between the tub 100 and the drum 500.

At this time, by supplying the cooling water to the outer peripheral surface of the drum 500 can increase the condensation effect. The supply of cooling water is performed using the washing water supplied from the filter washing unit 170. That is, by supplying the washing water through the supply path of the washing water, the washing water for washing the filter 173 may be ejected to the outer circumferential surface of the drum 500 to cool the drum 500. At this time, the washing water may be supplied less or more than the washing water supply amount at the time of washing the filter. That is, only the degree of wet the surface of the drum 500 is supplied to prevent the inside of the drum 500 (that is, the space in which the object to be dried) is introduced.

In addition, when the above-described filter 173 or the coolant water supply position (or the position of the injection nozzle 176) of the filter washing unit is eccentrically positioned at the center of the drum 500, the supply timing of the coolant may be in a rotational direction of the drum 500. It is preferably supplied when rotated in the direction opposite to the cooling water feed direction. This is because when the rotational direction of the drum 500 is rotated in the direction opposite to the cooling water supply direction, the coolant diffuses widely on the surface of the drum 500 and remains on the surface of the drum 500 for a long time. This is because the cooling time of the drum can be maintained for a long time.

Accordingly, the outer wall of the drum 500 maintains a temperature much lower than that of the drum 500 by the washing water supplied from the filter washing unit 170.

On the other hand, as described above, when the washing water is supplied to the outer circumferential surface of the drum 500 to cool the drum 500, the washing water supplied to the outer circumferential surface of the drum 500 may be introduced through the through hole 502 formed in the drum. . In this case, there is a problem in that the washing water supplied to generate the condensed water comes into contact with the laundry to be dried, rather, soaking the laundry, thereby lowering the drying effect.

This increases the rotational speed of the drum 500 to prevent the washing chuck supplied to the outer circumferential surface of the drum 500 from flowing through the through hole 502 of the drum 500. At this time, the rotation speed of the drum 500 is rotated at a speed such that washing water remaining on the outer circumferential surface of the drum 500 does not flow into the drum 500 through the through hole 502.

For example, when the laundry is dried, it is preferable to maintain the rotational speed of the drum 500 at about 40 to 110 rpm. More preferably, the rotational speed of the drum is maintained at 50 to 70 rpm. Typically, when the drum 500 has a rotation speed of 110 rpm or more, the laundry in the drum 500 is attached to the inner circumferential surface of the drum 500 to rotate. In this case, laundry and dry air are not effectively mixed, which reduces the drying efficiency. Therefore, it is preferable to maintain the rotational speed of the drum 500 at 110 rpm or less. That is, in order to mix the laundry and dry air during drying of the laundry, the laundry should maintain a rotation speed such that the laundry does not adhere to the inner circumferential surface of the drum 500.

Therefore, as the drum 500 rotates, the washing water remaining on the outer circumferential surface of the drum 500 by the centrifugal force of the drum 500 (that is, the washing water supplied for cooling the drum 500) is supplied to the through hole of the drum 500. It is prevented to flow into the drum 500 through the 502.

During the flow to the hot air outlet 150 through the above-described process, the heat exchange occurs through the outer peripheral surface of the drum 500, the moisture in the wet air is condensed on the outer peripheral surface of the drum 500. As the moisture is condensed, the wet air is discharged to the hot air outlet 150 in a dry state.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, The present invention may be modified in various ways. Therefore, modifications of the embodiments of the present invention will not depart from the scope of the present invention.

100: Tub 140: hot air inlet
150: hot air outlet 160: condensation unit
200: drying duct 210: blowing fan
220: heater 500: drum

Claims (19)

Tub for washing water;
A drum rotatably installed on the tub and accommodating a drying object;
A heater and a blowing fan for generating hot air;
A drying duct for guiding hot air into the drum; And
A cooling water supply unit supplying cooling water to an outer circumferential surface of the drum to form a condensation surface on the surface of the drum,
Drying and washing machine characterized in that for rotating the drum at a predetermined speed so that the cooling water does not flow into the drum at the same time as the supply of the cooling water. According to claim 1, wherein the rotational speed of the drum is a combined drying apparatus, characterized in that the speed before the drying object is attached to the inner wall of the drum. According to claim 1, wherein the rotational speed of the drum is a combined drying device, characterized in that between 40 ~ 110rpm. According to claim 2, wherein the rotation speed of the drum is a combined drying device, characterized in that between 50 ~ 70rpm. The combined dry laundry apparatus according to claim 1, wherein the cooling water supplied from the cooling water supply means is the washing water. According to claim 1, wherein the cooling water supply unit is a combined drying apparatus, characterized in that supplied from a branch hose branched from a water supply hose for supplying the wash water. The combined laundry machine according to claim 6, wherein the branch hose is connected to an outer circumferential surface of the tub. The combined washing machine according to claim 6, further comprising an injection nozzle on the inner circumferential surface of the tub for diffusing and spraying the cooling water connected to the branch hose. According to claim 1, wherein the cooling water is a combined drying apparatus, characterized in that spaced apart from the center of the drum falls on the outer peripheral surface of the drum. 10. The combined laundry washing apparatus according to claim 9, wherein the drum is rotated in a direction opposite to a dropping direction of the coolant falling into the drum. The combined drying machine of claim 1, further comprising a hot air outlet for returning air in the tub to the drying duct on an outer circumferential surface of the tub. 12. The combined laundry machine according to claim 11, further comprising a filter communicating with the hot air outlet on an inner circumferential surface of the tub. The combined washing machine according to claim 12, wherein the hot air outlet further includes a filter washing unit for spraying washing water onto the filter. According to claim 13, wherein the cooling water supply unit is a combined drying device, characterized in that the filter washing unit for supplying the washing water. 12. The combined laundry washing apparatus according to claim 11, wherein the hot air outlet is formed at an upper rear side of the tub and a hot air inlet is further formed at the front upper portion of the tub. 16. The method of claim 15,
The hot air inlet is a dry laundry machine, characterized in that formed in front of the opening formed in the drum. The method of claim 1,
A rotating shaft connected to the drum;
A bearing housing for rotatably supporting the rotating shaft;
A motor for rotating the rotating shaft; And
And a suspension unit connected to the bearing housing, the suspension unit buffering vibration of the drum. The method of claim 1,
A drive unit including a rotating shaft connected to the drum, a bearing housing for rotatably supporting the rotating shaft, and a motor for rotating the rotating shaft; And
Drying washing device further comprises a sealing member for sealing the rear portion of the tub to prevent leakage from the tub to the drive unit, allowing the drive unit to move relative to the tub. The method of claim 1,
And a suspension unit for supporting the drum, wherein the tub is rigidly supported than the drum is supported by the suspension unit.

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