KR101752414B1 - Laundry machine having a drying function - Google Patents

Abstract

The present invention relates to a device, particularly as a drying object, having a function of drying clothes. The drying apparatus of the present invention may include means for filtering lint or the like of hot air. And means for determining whether or not the above means are clogged by a lint or the like.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a clothes device having a drying function,

The present invention relates to a device, particularly as a drying object, having a function of drying clothes. Such an apparatus can be referred to as a clothes apparatus having a drying function.

A clothes apparatus having a drying function includes a drying-only apparatus having only a drying function, and there is a drying-and-drying apparatus having a washing function of clothing. In addition, depending on the structure or form, there are a drum type apparatus for tumble-drying clothes using a rotatable drum, and a so-called cabinet type apparatus for hanging clothes and drying the clothes.

Generally, a conventional drying and washing machine includes a tub for receiving wash water for washing water. A drum in which the laundry is placed is rotatably installed in the tub.

The drum is connected to a rotating shaft, and a motor is used to rotate the rotating shaft.

The rotary shaft is rotatably supported through a bearing housing provided on a rear wall of the tub. The suspension is connected to the tub, and vibration of the drum and the tub is buffered by the suspension.

For drying functions, drying ducts and condensing ducts are included. The drying duct is located in the upper part of the tub, and a hot air heater and a fan are installed inside. The condensing duct is connected to the tub at one end and connected to the drying duct at the other end.

Cooling water is supplied into the condensing duct to condense water contained in the humidifier. The humidifier is condensed in contact with the cooling water while flowing through the condensing duct, and then flows into the drying duct. The hot air returned to the drying duct again is reheated through the hot air heater and supplied again to the turbine.

A drying device capable of detecting whether or not a filter installed to filter out lint from hot air is blocked by a lint or the like.

In a laundry machine according to an embodiment of the present invention, a filter may be installed by being exposed to the inside of the tub.

A hot wind outlet through which hot wind is discharged may be formed on a circumferential surface of the tub, and the filter may be installed in the hot wind outlet.

The filter may be located about the circumference of the drum relative to the drum. Thus, the filter can be cleaned by the airflow induced by the rotation of the drum. As the rotating speed of the drum is increased, the wind speed of the rotating air stream becomes stronger, and an excellent filter cleaning effect can be obtained.

On the other hand, the lint and the like may be dried and fixed to the filter surface. In this case, it may be preferable to moisten the dried lint with water. In the case of the dewatering process, water droplets are ejected from the wet laundry through the through holes of the drum, and these droplets contact the filter to wet the lint. In the case of performing the dewatering stroke, the rotation speed of the drum is high and the water droplets as described above can be approached to the filter, so that the cleaning effect can be improved.

Alternatively, a filter cleaning unit for separately supplying water to the filter may be included. That is, the filter washing section may be made to supply washing water to the filter surface.

On the other hand, depending on the position of the filter, it may be considered that the filter is washed by the water stored in the tub. That is, the wash water or rinse water inside the tub may approach the filter and cause the filter to be washed.

The drying apparatus of the present invention may include means for detecting whether the filter is clogged. The filter filters the lint from hot air, which may accumulate in the filter and block the filter. Thus, means for detecting whether the filter is clogged can be included.

The means may be to sense clogging of the filter in accordance with the operating state information of the fan for blowing hot air.

As described above, the operating state information of the fan used for detecting the clogging of the filter may be advantageously changed according to the control method of the fan.

For example, when the motor for rotating the fan is PWM-controlled, it may be advantageous to use the number of revolutions of the fan (or the number of revolutions of the motor). In this case, since the flow resistance is increased and the number of revolutions of the fan is reduced as the filter is clogged, the clogging of the filter can be detected by using the number of revolutions of the fan.

Also, in the case of controlling the rotation speed for the operation of the fan, it may be advantageous that the electric power applied to rotate the fan is used for filter clogging detection. In this case, when the flow path is controlled to rotate at a predetermined number of revolutions, energy required for reaching the number of revolutions is further needed, so that power consumption, which is energy for rotating the fan, needs to be consumed. Therefore, in this case, the filter clogging can be detected using the power applied to the fan (or motor).

On the other hand, the controller may have a specific program set when the filter is clogged. For example, a program for informing the user of clogging of the filter, a program for cleaning the filter, and the like may be input to the controller.

Particularly, in a drying apparatus that does not have a condensing duct as a structure in which condensation occurs in the tub, a lint or the like may contact a hot air heater to cause a fire. Therefore, it is advantageous to install the filter as described above, and it may be advantageous to have means for judging clogging of the filter.

Meanwhile, one embodiment of the drying apparatus according to the present invention may include a drum, a driving unit for rotating the drum, and a suspension unit for buffering the vibration of the drum.

The driving unit may include a rotating shaft connected to the drum, a bearing housing rotatably supporting the rotating shaft, and a motor connected to the rotating shaft. Here, the motor may be directly connected to the rotating shaft or may be connected indirectly.

The suspension unit may include a radial bracket or an axial bracket.

The radial bracket may be a bracket extending from the bearing housing to a radially spaced apart position relative to the rotational axis. The axial bracket may be a bracket extending from the bearing housing to an axially spaced position.

On the other hand, the tub for receiving the washing water may be fixedly installed or supported by a flexible supporting structure such as a suspension unit. It may also be supported about halfway between the suspension support and the fixed support.

That is, the tub may be flexibly supported to the same extent as the suspension unit, or may be rigidly supported such that the movement is more rigid than such support. For example, the tub may be supported by a suspension, such as a rubber bushing, or may be completely fixed, such that it is not flexible, but rather flexible, to some extent, rather than a suspension.

An example of how a tub is supported more rigidly than a suspension unit is as follows.

First, the tub may be integrally formed at least partially in the cabinet. For example, the tub and the cabinet can be integrally injection-molded. As a specific example, a part of the front part of the tub and a part of the front part of the cabinet may be integrally injection-molded.

Second, they may be connected by a screw, a rivet, a rubber bushing, or the like, or they may be fixed and supported by welding, adhesive sealing, or the like. In this case, such a connecting member has a stiffness greater than the stiffness of the suspension unit with respect to the vertical direction, which is the main vibration direction of the drum.

Such a tub may be in an expanded form as far as possible within the space in which it is installed. That is, the tub is provided with a wall or frame (for example, a left or right side of a cabinet or a right side of the cabinet) that limits the size of the space in the left and right direction in at least the left and right direction (the direction orthogonal to the axial direction thereof when the rotary shaft is horizontally placed) ) To the extent that it is close to. Here, the tub may be integrally formed on the left or right wall of the cabinet.

The tub may be formed closer to the wall or the frame than the drum in the lateral direction. For example, the tub may be formed to be spaced apart from the wall or frame by an interval of 1.5 times or less the distance from the drum. With the tub extended in the lateral direction as such, the drum can also be extended in the lateral direction. The smaller the gap between the tub and the drum in the left-right direction, the more the drum can be extended in the left-right direction. In order to reduce the gap between the tub and the drum in the left-right direction, the lateral vibration of the drum can be considered. The smaller the vibration in the lateral direction of the drum is, the larger the diameter of the drum can be expanded. Therefore, the suspension unit which absorbs the vibration of the drum can be made to have a greater rigidity with respect to the lateral direction than the other directions. For example, the suspension unit may be made such that the stiffness with respect to the displacement in the lateral direction is maximized relative to the other directions.

Further, in the suspension unit, it may be directly connected to a bearing housing that supports a rotary shaft connected to the drum, not through a tub, unlike the conventional case.

In this case, the suspension unit may include a bracket extending in the axial direction of the rotation shaft. The bracket may extend toward the front of the door.

On the other hand, the suspension unit may include at least two suspensions spaced apart in the axial direction of the rotation axis.

In addition, the suspension unit may include a plurality of suspensions provided at a lower portion of the rotating shaft and configured to stand and support the object to be supported (e.g., a drum). Alternatively, the suspension unit may include a plurality of suspensions mounted on the rotating shaft and configured to support the object to be supported. In such cases, the suspension can be supported by only the lower portion or the upper portion with respect to the rotation shaft.

The center of gravity of the oscillator including the drum, the rotary shaft, the bearing housing, and the motor and the like may be located on the side where the motor is located with respect to at least the longitudinal shape center of the drum.

And, at least one suspension may be located in front of or behind the center of gravity. Also, one suspension may be provided before and after the center of gravity, respectively.

The tub may have an opening in the rear portion. The driving unit including the rotating shaft, the bearing housing, and the motor can be connected to the tub through the flexible member. The flexible member may be configured to allow relative movement of the driving portion with respect to the tub while sealing the washing water through the rear opening of the tub to prevent leakage of wash water. Such a flexible member may be made of a gasket material such as a front gasket, for example, as long as it is a sealable and flexible material. In this case, it may be referred to as a rear gasket corresponding to the front gasket for convenience. The connection of the rear gasket to the driving unit may be connected in a rotationally restrained state with respect to the rotational direction of the rotating shaft. In one embodiment, the rear gasket may be connected directly to the rotating shaft or may be connected to an extension of the bearing housing.

In addition, a portion of the driving part, which is positioned in front of the connection part with the rear gasket and can be exposed to the washing water in the tub, can be made to prevent corrosion due to washing water. For example, it may be coated or a front part may be wrapped with a separate part made of plastic material (for example, a teflon bag described later). If there is a part made of a metal material in the driving part, it is prevented from being directly exposed to water, so that corrosion can be prevented.

In addition, unlike the present embodiment, the cabinet may not be included. For example, in the case of a built-in drying apparatus, a space for installing a drying apparatus instead of a cabinet may be provided by a wall structure or the like. That is, it may be made into a form that does not include a cabinet that independently forms the appearance. In this case, however, the front side may be necessary.

The drying apparatus of one embodiment of the present invention can detect that the filter is clogged by a lint or the like. According to the embodiment, the user can automatically or programmatically respond to the clogging of the filter, thereby preventing the deterioration of the drying performance due to clogging of the filter.

1 is a partially assembled perspective view of a first embodiment of the present invention.
Fig. 2 shows the tub and drying module of the first embodiment. Fig.
3 is a partial cross-sectional view of the hot air inlet portion of the first embodiment.
Figure 4 shows the interior of the tub.
Figure 5 shows a partial cross-sectional view in which the filter assembly is installed in a hot air outlet.
Figure 6 shows a filter assembly.
7 shows the wire filter on the left side and the perforation filter on the right side.
8 shows a state in which the washing water is dispersed around the impact surface.
9 shows a state in which wash water is dispersed through a shower nozzle and water is supplied to the filter.
Fig. 10 shows a state in which the filter is projected radially to the outer peripheral surface of the drum.
11 shows the circulation path of hot air.
12 shows a second embodiment.
13 and 14 show a third embodiment.
15 shows the relationship between the air flow rate and the resistance of the circulating flow path.
16 is a flowchart of a method for controlling a drying apparatus.

Fig. 1 shows a partially exploded perspective view of a garment apparatus according to an embodiment of the present invention. FIG. 1 is a schematic overall structure of the embodiment, and some components may be omitted. 1 is a drying and washing machine having both a drying function and a washing function. The present embodiment is a case where the condensing portion is a tub.

In the drying apparatus of the embodiment, the tub is fixedly supported in the cabinet. The tub may include a tub front 100 constituting a front portion and a turbore 120 constituting a rear portion.

The tub front 100 and the turbulator 120 can be assembled by screws and form a space for accommodating the drum therein. The turbine 120 has an opening on the rear side. The turbulator 120 is connected to the rear gasket 250, which is a flexible member, at the portion forming the opening. The rear gasket 250 may be connected to the turbobac 130 at a radially inner portion. The turbobac 130 has a through hole formed at its center through which the rotating shaft passes. The rear gasket 250 is formed so that the vibration of the turbobac 130 can be flexibly deformed to a degree that the vibration is not transmitted to the turbabrator 120.

The rear gasket 250 is connected to the turbobar 130 and the turber 120 so as to be sealed to prevent the washing water in the tub from leaking. The turbobac 130 is vibrated together with the drum when the drum rotates. At this time, the turbobac 130 is spaced apart from the turbulator 120 at a sufficient interval so as not to interfere with the turbulator 120. The rear gasket 250 can be flexibly deformed, thus allowing the turbobac 130 to move relative to the turber 120 without interference. The rear gasket 250 may have a curved portion or wrinkle portion 252 that can be extended to a sufficient length to permit such relative movement of the turb back 130.

The tub has an opening for entry and exit of the laundry in its front part. A front gasket 200 for preventing the inflow of washing water through the doorway or preventing laundry or foreign matter from entering between the tub and the drum may be installed on the front side of the tub having such an entrance, .

The drum may include a drum front 300, a drum center 320, a drum bag 340, and the like. A ball balancer may be installed on the front portion and the rear portion of the drum, respectively. The drum bag 340 is connected to a spider 350 and the spider 350 is connected to a rotating shaft 351. The drum rotates in the tub by the rotational force transmitted through the rotating shaft 351. [

The rotation shaft 351 passes through the turbobac 130 and is connected to the motor. In the present embodiment, the motor is connected concentrically with the rotation shaft. That is, in this embodiment, the motor is directly connected to the rotary shaft. Specifically, the rotor of the motor and the rotary shaft 351 are directly connected. The bearing housing 400 is coupled to the rear surface 128 of the turbobac 130. The bearing housing 400 rotatably supports the rotation shaft 351 between the motor and the turbobac 130.

A stator (80) is fixed to the bearing housing (400). Then, the rotor is positioned around the stator (80). The rotor is directly connected to the rotary shaft 351 as described above. The motor is an outer rotor type motor and is directly connected to the rotary shaft 351.

The bearing housing 400 is supported from the cabinet base 600 through a suspension unit. The suspension unit may include a plurality of brackets connected to the bearing housing. The plurality of brackets may include radial brackets 430 and 431 connected to the bearing housing and extending in the radial direction, and axial brackets 440 and 450 extended in the forward and backward directions or in the rotational axis direction of the drum.

The suspension unit may include a plurality of suspensions connected to the plurality of brackets.

In this embodiment, the suspension may include three vertical suspensions 500, 510 and 520 and two inclined suspensions 530 and 540 inclined with respect to the longitudinal direction. The suspension unit is connected to the cabinet base 600 in a completely fixed manner and is allowed to allow some elastic deformation so as to permit the drum to move back and forth and to the left and right. That is, the suspension unit is elastically supported so as to allow a certain degree of rotation about its supporting point connected to the base. For such elastic support, the vertically installed suspension may be installed on the base 600 via a rubber bushing. The vertical installation of the suspension may elastically buffer the vibration of the drum, and the inclined installation may be configured to attenuate the vibration. That is, in the vibration system including the spring and the damping means, the vertically installed part serves as a spring and the inclined part serves as a damping means.

The tub is fixedly installed in a cabinet, and vibration of the drum is buffered by the suspension unit. The front and rear portions of the tub may be secured to the cabinet. The tub may be seated on the base of the cabinet and may be fixed to the base.

The drying apparatus of this embodiment may be substantially a structure in which the supporting structure of the tub and the drum is separated. Further, even if the drum vibrates, the tub can be said to have a structure that does not vibrate. Here, depending on the rear gasket, the amount of vibration of the drum transmitted to the tub may be varied.

In addition, in the drying apparatus of the present embodiment, since the vibration of the tub is remarkably small, the interval maintained by the vibration is not required unlike the conventional case, so that the outer surface of the tub can be located as close as possible to the cabinet. This makes it possible to extend the size of the tub without increasing the size of the cabinet, and to make it possible to increase the capacity of the drying apparatus in the same outer size.

The distance between the cabinet light 630 or the cabinet left 640 and the tub may be substantially 5 mm. In the conventional drying apparatus in which the tubs are vibrated together, the interval is about 30 mm to prevent the vibration of the tub from interfering with the cabinet. Considering the diameter of the tub, in this embodiment, the diameter of the tub can be extended by 50 mm more than the conventional one. This results in a significant difference to the extent that the capacity of the drying apparatus can be raised by one step at the same apparent size.

2 shows a state in which the drying ducts 40 and the like are installed in the tubs 100 and 120. FIG. 3 shows a cross section of a front upper portion of the tubs 100 and 120 to which the drying duct 40 is connected.

First, the tubs 100 and 120 have a front portion 101 located forward of the swinging / entering port of the drums 300, 320 and 340 at the front portion thereof. The front part 101 is formed with a rim part 102 protruding forward and a front gasket 200 is inserted into the front part of the rim part 102. The rim portion 102 is formed such that the upper side further protrudes forward than the lower side.

A hot air inlet 103 for introducing hot air is formed in the upper portion of the rim portion 102. The hot air inlet 103 protrudes upward from the upper portion of the rim portion 102. The protruding angle of the hot air inlet 103 is within 45 degrees with respect to the imaginary plane in which the swinging / loading port of the drums 300, 320, and 340 is placed. In the present embodiment, it is parallel within 10 degrees.

Both ends of the drying duct (40) are in direct communication with the tubs (100, 120). The drying apparatus of the present embodiment does not have a condensing duct separately as in the prior art. Thus, the drying duct 40 directly communicates with the tubs 100 and 120. That is, conventionally, a hot air circulation flow path is formed by the "drying duct-tub-drum-tub-condensing duct-drying duct", but in this embodiment, a circulation flow path is formed by the "drying duct-drum- . The circulation flow path is complicated and long because the conventional circulation flow path has a condensing duct and hot air flows into the space between the tubs 100 and 120 and the walls of the drums 300, More specifically, in the conventional art, hot air flows into an outer surface of the drum between a wall surface of a front portion of the tub and an outer surface of a front portion of the drum. In addition, because hot air flows into the space between the drum and the tub wall, some of the hot air can not flow into the drum, but remains in the tub and is discharged to the condensing duct. Further, if the circulation flow path is complicated and long, heat loss may be generated, and the flow path resistance may be increased.

The drying duct 40 is connected to the connecting duct 40a inserted in the hot air inlet 103 and the hot air outlet 121 formed in the tubs 100 and 120, And a scroll 40b. A hot air heater 44 is installed in the drying duct 40 between the connecting duct 40a and the scroll 40b.

The front gasket 200 coupled to the front portion of the rim portion 102 of the tubs 100 and 120 is formed with a duct connecting portion 201 to be inserted into the hot air inlet 103. The connecting ducts 40a and the hot air inlet 103). The connecting duct 40a is inserted into the duct connecting portion 201 of the front gasket 200. [ The connecting duct 40a is assembled to the upper portion of the drying duct 40 where the hot air heater 44 is installed and the duct connecting portion 201 of the front gasket 200 is connected to the hot air inlet 103 And is assembled with a snug fit.

As shown in FIG. 3, the hot air inlet 103 is located in front of the entrance of the drums 300, 320, and 340. The outlet of the connecting duct 40a inserted in the hot air inlet 103 is also located in front of the entrance of the drums 300, 320,

Meanwhile, as shown in FIG. 3, the swirling port of the tubs 100 and 120 is positioned in front of the hot air inlet 103. The door glass (91) of the door (90) that opens and closes the swinging door is inclined downward at least toward the upper side toward the drums (300, 320, 340). The door glass 91 is located below the hot air inlet 103. The hot air discharged from the connecting duct 40a is diverted downward toward the inside of the drums 300, 320, and 340 by bumping against the door glass 91. That is, the upper portion of the door glass 91 helps the hot air discharged from the connecting duct 40a to be directed into the drums 300, 320, and 340.

In this embodiment, the hot wind can flow almost all into the drums 300, 320 and 340. The hot air flows into the space between the front portion 101 of the tubs 100 and 120 and the front portions of the drums 300 and 320 and 340. The hot air is also introduced into the front portions of the drums 300, As shown in Fig. Therefore, only about 30% of the hot air flowing from the drying duct 40 can be introduced into the drums 300, 320, and 340 in the related art. The remaining 70% of the hot air flows between the drums 300, 320 and 340 and the tubs 100 and 120 and is discharged to the condensing ducts. Thus, inefficiency which is not utilized for drying clothes located in the drums 300, .

In the present embodiment, the tubs 100 and 120 are tilted so that the front portion is higher than the rear portion. The front portion 101 of the tubs 100 and 120 is also tilted at the same angle with respect to the vertical line. The drums 300, 320 and 340 are also installed at a similar angle.

However, the swinging port of the tubs 100 and 120 is formed in parallel with the vertical line without being tilted. This is achieved by further projecting the upper portion of the rim portion 102 of the tub 100, 120 forward. That is, the upper portion of the rim portion 102 is further projected forward so as to form a swinging port parallel to the vertical line from the front portion 101 of the tubs 100 and 120 inclined at a predetermined angle with respect to the vertical line.

As the tubs 100 and 120 are tilted, a predetermined space is secured between the upper portion of the front portion 101 of the tubs 100 and 120 and the inner surface of the front surface of the cabinet. The connecting duct 40a is installed in the space thus secured. Of course, the tubs 100 and 120 may not be tilted unlike the above.

Further, in the present embodiment, the tubs 100 and 120 are fixedly connected to the cabinet. That is, the tubs 100 and 120 are fixed to the cabinet. Since the tubs 100 and 120 do not vibrate substantially in comparison with the drums 300, 320, and 340 in this embodiment, the drying duct 40 can be stably supported. Specifically, in the present embodiment, the front portion 101 of the tubs 100 and 120 is fixed to the cabinet front plate (not shown), and the rear portions of the tubs 100 and 120 are screwed or bolted to the cabinet rear plate 620 do. In addition, the tubs 100 and 120 are installed on the bottom plate 600 of the cabinet so as to be self-standing.

2, the drying duct 40 is installed at the upper center of the tubs 100 and 120. One end of the drying duct 40 is inserted into the hot air inlet 103 by the connecting duct 40a and the other end is bent to the side And is connected to the hot air outlet 121 of the tubs 100 and 120 through the scroll 40b on which the fan 41 is installed.

In the portion of the drying duct 40 located above the tubs 100 and 120, a hot air heater 44 for generating hot air is installed inside the front portion. The air blown by the rotation of the fan 41 is heated by the hot air heater 44.

The portion of the drying duct 40 where the hot air heater 44 is located may be hot due to the heat of the hot air heater 44. Thus, the heat insulating plate 45 is positioned between the hot air heater 44 of the drying duct 40 and the tubs 100 and 120.

The drying duct 40 is fixedly installed on the tubs 100 and 120. In the present embodiment, it is fastened with screws.

On the other hand, as shown in FIG. 2, hot air outlets 121 are formed on upper side portions (right side portions in the present embodiment) of the outer circumferential surfaces of the tubs 100 and 120. Then, a scroll 40b of the drying duct 40 is installed thereon. The fan 41 located inside the scroll 40b sucks hot air from the hot air outlet 121 and blows hot air into the drying duct 40. The fan (41) is a fan (41) having a structure in which hot air is sucked in the direction of the rotating shaft with respect to the rotating shaft to blow hot air in a radial direction. That is, in this embodiment, a centrifugal fan is used.

The direction of the hot air discharged from the hot air outlet 121 coincides with the direction in which the fan 41 sucks the hot air. This structure contributes to a more smooth circulation of hot air. The hot air discharged from the inside of the tubs 100 and 120 through the hot air outlet 121 flows into the fan 41 as it is discharged and is blown to the drying duct 40.

Both the hot air inlet 103 and the hot air outlet 121 are located at the upper portion with respect to the tubs 100 and 120. The hot air inlet 103 is located at a front portion, and the hot air outlet 121 is located at a rear portion. The directional lines of the hot air inlet 103 and the hot air outlet 121 in the direction of the hot air flow are both within 10 degrees with respect to the vertical line. The hot wind outlet 103 and the hot wind outlet 121 form an angle of less than 10 degrees between them. In this embodiment, the directional lines of the hot air inlet 103 and the hot air outlet 121 are parallel to each other, and their directions are opposite to each other.

The hot air inlet 103 and the hot air outlet 121 communicate with each other by a drying duct 40 located above the tubs 100 and 120. Therefore, hot air flows through a simple circulation path called "drying duct-tub-drying duct ". Since the space inside the tubs 100 and 120 is relatively wide, the flow path resistance may be relatively small. The flow path resistance in this embodiment can be mainly generated in the drying duct 40. From this point of view, the conventional drying apparatus has a drawback in that the condensed duct is added even if the complexity of the duct due to the condensed duct is different.

Meanwhile, FIG. 4 shows the inside of the tubs 100 and 120. As shown, a condensation plate 42 is provided on the inner circumferential surface inside the tubs 100 and 120. The condensing plate 42 may be a metal. Although the tubs 100 and 120 may be made of a metal material, they may be formed by injection molding with a plastic material. In the case where the tubs 100 and 120 are made of plastic, it is advantageous to provide condensation plates 42 of metallic material having a cooler property in the inside of the tubs 100 and 120 for condensation.

As shown in FIG. 2, three coupling bosses 129a and 129b are formed on the upper and lower tubs 100 and 120 for the installation of the condensation plate 42, respectively. The fastening bosses are made so that screws can be fastened on the inner surfaces of the tubs 100 and 120. If the condensing plate 42 located on the inner surface of the tubs 100 and 120 is fastened by tightening screws on the outer surfaces of the tubs 100 and 120, the fastening holes formed for fastening the screws may be sealed. However, if the fastening boss is formed so as to fasten the screws on the inner surfaces of the tubs 100 and 120 as in the present embodiment, there is no need to seal them. That is, the fastening bosses 129a and 129b are formed to protrude from the outer circumference of the tubs 100 and 120 on the inner surfaces of the tubs 100 and 120, but are not made to penetrate the outer surfaces of the tubs 100 and 120.

The condensing plate (42) is installed at the center of the side surface of the inner circumferential surface of the tub (100, 120). And fastened to the above-described fastening bosses 129a and 129b using screws 42a and 42b. 4, the condensing plate 42 is provided at the center of the right inner peripheral surface on which the hot air outlet 121 is located when the inner peripheral surface of the tubs 100, 120 is divided into "upper, lower, left, From the viewpoint of the hot air outlet 121, it is located on the inner peripheral surface below the hot air outlet 121 in the inner peripheral surface of the tubs 100 and 120. The hot air that contains moisture through the drums 300, 320, and 340 is discharged to the condenser plate 42 (see FIG. 2) provided on the inner circumferential surface of the tubs 100 and 120 before being discharged out of the tubs 100 and 120 through the hot air outlet 121 ) And is condensed. Here, the condensation may occur on other inner circumferential surfaces of the tubs 100 and 120, and the condensation plate 42 may be more effectively formed on the condensation plate 42 since it is a metal material. The condensation plate 42 may be made of stainless steel.

On the other hand, foreign matter such as lint may be contained in the hot air passing through the wet clothes in the drums 300, 320 and 340 for drying. A filter 52 may be provided to filter out such foreign matter. This will be described in more detail with reference to Figs. 4 to 10. Fig.

The filter 52 is installed at a position exposed to the interior of the tubs 100 and 120. In particular, the filter 52 is located on the circumferential surface of the tub 100, 120. The hot wind outlets 121 are formed on the circumferential surface of the tubs 100 and 120 and the filters 52 are installed in the hot wind outlets 121.

When the drums 300, 320, and 340 are rotated, a rotating air stream of air is formed around the drums 300, 320, and 340 by the rotation thereof. The rotating air current impinges on the filter 52 to remove foreign substances such as a lint or the like adhering to the filter 52. At this time, when wet laundry is present in the drums 300, 320 and 340, water from the laundry can be radiated to the inner walls of the tubs 100 and 120 through the through holes 321 of the drums 300, 320 and 340. The radiated water hits the filter 52, and the cleaning effect of the filter 52 can be enhanced.

A foreign substance such as a lint may be adhered to the surface of the filter 52 by being dried, and when the filter is wetted by water, the cleaning may be made easier.

The filter 52 is installed inside the hot air outlet 121. When the hot air outlet 121 protrudes outside the tubs 100 and 120 as shown in the drawing, the filter 52 may be installed in the hot air outlet 121, particularly near the inner surfaces of the tubs 100 and 120. The water discharged from the washing water through the drum 300, 320, 340 or the water discharged from the laundry (in other words, even if it is not a dewatering cycle on the washing course, For convenience, referred to as " dehydrated water ") can be easily accessed. The hot air outlet 121 protrudes upward from the upper portion of the rear of the tubs 100 and 120 and the filter 52 is installed below the hot air outlet 121.

The filter 52 may be installed to protrude from the hot air outlet 121 into the tubs 100 and 120, unlike the present embodiment. The filter 52 may be provided so as to protrude further into the tubs 100 and 120 from the hot air outlet 121 if there is no interference with the drums 300, 320 and 340.

Meanwhile, the filter 52 may be curved so as to have a radius of curvature equal to the radius of curvature of the inner surface of the tubs 100 and 120. The radius of curvature of the inner surface of the tubs 100 and 120 and the radius of curvature of the filter 52 may be made to differ by 10% or less depending on whether the filter 52 is installed at the hot air outlet 121 . A portion of the rotational wind of the drums 300, 320, and 340 may approach the filter 52 while flowing along the inner circumferential surface of the tubs 100 and 120, so that the difference in radius of curvature may not be large.

The filter 52 may be positioned around the circumferential surface of the drums 300, 320, 340 in relation to the drums 300, 320, 340. The arrangement of the filter 52 is not limited to the drum rotation but is arranged so as to overlap with the circumferential surface of the drums 300, . In other words, when projecting the filter 52 in the radial direction on the circumference of the drum 300, 320, 340, the projected portion (see PA in FIG. 10) Or more than one-half of the circumferential surface of the base plate. This facilitates access of the rotating wind or dehydrated water of the drums 300, 320, 340 so that the rotating wind or dehydrated water is hit relatively strongly on the filter 52. The case of this embodiment is as shown in Fig.

The filter 52 is provided by the filter assembly 50 in this embodiment. Specifically, the filter assembly 50 includes a filter housing 51 on which the filter 52 is mounted, as shown in FIG. The filter housing 51 includes a portion 51c that extends a predetermined length as a hollow body. The filter 52 is mounted on one end of the filter housing 51. The filter housing 51 may be inserted into the hot air outlet 121 as shown in FIG. The outer surface of the filter housing 51 may be fastened to the inner surface of the hot air outlet 121. In this embodiment, as shown in FIG. 6, a fastening hole 51a is formed in the filter housing 51 and is fastened by screwing. Or the outer surface of the filter housing 51 may be fixed snugly to the inner surface of the hot air outlet 121 and assembled.

The filter housing 51 may have a length equal to the protruding length of the hot air outlet 121.

Although not shown, the filter housing may be formed in a hollow disc shape, unlike the filter assembly. The filter may be mounted on one surface of the disc-shaped filter housing. The filter assembly of this type may be fixed to the hot air outlet 121 by hook coupling. The disk-shaped filter assembly may have a shape in which a portion of the filter housing 51 in the filter assembly 50 shown in FIG. 6 is extended upward by a hollow body other than the bottom end of the filter housing 51 where the filter 52 is mounted.

Meanwhile, a filter cleaning unit for supplying air or water to the filter 52 may be added to increase the cleaning effect of the filter 52. When air is sprayed, hot air may be sprayed in the direction opposite to the traveling direction through the filter 52 during drying.

In the present embodiment, the filter cleaning unit supplies cleaning water, which is water. 2, a branched hose 11 branched from a water supply hose 10 provided for supplying water into the tubs 100 and 120 and connected to a water supply port 121a of the hot air outlet 121 .

The water supplied from the branch hose 11 is supplied to the outer surface of the filter 52, which is the opposite surface of the inner surface facing the inside of the tubs 100 and 120. The water to be supplied flows into the tubs 100 and 120 while washing the filter 52.

The washing water (w) for washing the filter (52) can be supplied together when the washing water is supplied to the tubs (100, 120). A valve may be installed in the branch hose 11 where the branch hose 11 is branched from the water supply hose 10. Thus, the time at which the washing water (w) is supplied to the filter (52) can be adjusted. If there is no such valve, the washing water (w) will always be supplied to the filter (52) when the washing water is supplied to the tubs (100, 120).

The washing water w supplied as described above is primarily wetted with the lint and the like fixed to the filter 52 while washing the filter 52. When the drums 300, 320, and 340 rotate in such a state, the rotating wind or dehydrated water hits the filter 52 to clean the filter 52.

On the other hand, the washing water w may be dispersed so as to be uniformly supplied to the outer surface of the filter 52. For this purpose, as shown in FIG. 9, a spray body 121b such as a shower nozzle may be installed in the washing water (w) water supply port. In this embodiment, the impact surface 51b is provided as shown in Fig. The washing water w collides against the impact surface 51b while falling and spreads around the filter 52.

The impact surface 51b may be integrally formed with the filter housing 51 at one end of the filter housing 51 as described above.

Meanwhile, the filter 52 may be a metal filter 52. A metal wire filter made by weaving metal wires (see the upper side of Fig. 7). Alternatively, it may be a perforated filter (see the lower side of Fig. 7) made by punching a plurality of holes in a metal plate. Since the perforated filter can smooth the surface of the filter 52, there is an advantage that the lint or the like can be easily removed. In the case of a metal wire filter, it may be desirable to have a mesh size of less than 30 mesh. Mesh A wire filter having a mesh size of 30 or more may not be easy to remove, such as a lint, because the hole is too small and the mesh is too large. Here, the mesh size is determined by the number of meshes with respect to the vertical length of 1 inch. That is, the mesh 30 means a wire filter having a mesh size of about 30 meshes with respect to a length of 1 inch.

The type of the filter 52 may be determined in consideration of the cleaning effect of the filter 52 depending on the number of rotations of the drums 300, 320, and 340. For example, the number of revolutions of the drums 300, 320, and 340 may be determined to the extent that the filter 52 can be cleaned at 400 rpm or more.

However, it has been confirmed that even if the number of rotations of the drums 300, 320, and 340 exceeds 1000 rpm, the filter 52 is satisfactorily cleaned regardless of the type of the filter 52. Particularly, it has been confirmed that the washing effect of the filter 52 is excellent when the laundry is dewatered at 1000 rpm or more by putting the wet laundry into the drums 300, 320, and 340 while the lint or the like is accumulated in the filter 52. Here, the washing water w as described above for washing the filter 52 was not supplied.

In an embodiment of the drying apparatus according to the present invention, the filter 52 is exposed to the inside of the tubs 100 and 120 and can be automatically cleaned by the rotating wind or dehydrated water of the drums 300, 320 and 340. At this time, the washing water w may be separately supplied through the filter washing unit as described above.

Unlike the above-described embodiments, the filter 52 may be installed at a position where washing water stored in the tubs 100 and 120 can be washed. For example, unlike the above-described embodiment, the hot wind outlet 121 may be formed in the lower part of the tubs 100 and 120, and the filter 52 may be installed thereon. Therefore, the washing water may be used to wash the filter 52 by rinsing water during the washing or rinsing cycle of the washing course. As the drums 300, 320, and 340 are rotated, the water stored in the tubs 100 and 120 may form a water flow so as to approach the filter 52 to be cleaned. Alternatively, the filter 52 may be located at a position where it can be immersed in the water stored in the tubs 100 and 120 during a washing cycle or during a rinse cycle, so that cleaning may be performed.

In the above-described embodiments, washing and drying can be both used. Accordingly, the water supply hose 10 may be connected to the tubs 100 and 120 via a detergent box (not shown). Therefore, when washing or rinsing, water is supplied to the tubs 100 and 120 through the water supply hose 10 to perform washing or rinsing.

Depending on the use, a dewatering process may be performed after the washing and rinsing processes are completed, and a drying process may be performed after the dewatering process is completed. The foreign substance such as lint accumulated in the filter 52 during the drying stroke can be automatically cleaned by the washing, rinsing or dewatering in the next use.

Fig. 11 shows a flow path of hot air during drying in the above-described drying and washing machine. First, hot air can be generated by the hot air heater 44 in the drying duct 40 and the fan 41 installed inside the scroll 40b. The air blown by the fan (41) is heated and flows at a high temperature by the hot air heater (44). Then, the water flows to the front of the drums 300, 320, and 340 through the connecting duct 40a inserted into the hot air inlet 103 of the tub front, and flows into the drum through the swinging and entering port of the drum.

The hot air introduced into the drums 300, 320 and 340 is discharged to the outside of the drums 300, 320 and 340 through the through holes 321 formed in the walls of the drums 300, do. The humid air that has flowed into the spaces between the drums 300, 320 and 340 and the tubs 100 and 120 through the through holes 321 flows through spaces between the tubs 100 and 120 and the drums 300 and 320 and 340 Is discharged from the tubs (100, 120) through the hot air outlet (121) located at the rear portion of the turbore (120). The air discharged through the hot air outlet 121 is sucked by the fan 41 and blows back into the drying duct 40 to be circulated.

Before the moisture is discharged through the hot air outlet 121, the moisture contained in the air condenses as the humid air flows through spaces between the tubs 100, 120 and the drums 300, 320, 340. In order to perform effective condensation, heat must be taken away from the humid air. The natural convection flows to the outside of the tubs 100 and 120, and the heat is discharged to the outside of the tubs 100 and 120. As a result of the natural convection through the outer surfaces of the tubs 100 and 120, the humid air between the tubs 100 and 120 and the drums 300 and 320 and 340 sucks heat and the water contained therein is condensed .

At this time, water droplets due to condensation will be formed on the surface of the condensation plate 42 and the inner surfaces of the tubs 100 and 120. The condensation plate 42 may not be essential for the natural cooling as described above. Although it may contribute to increasing the condensation rate, it may be condensed on the inner surfaces of the tubs 100 and 120 without the condensation plate 42, and the required condensation rate may be achieved. The case where the condensing plate 42 is not provided will be described again in another embodiment below.

The drying apparatus of this embodiment constitutes a circulating drying system in which hot air circulates. There is no separate condensing duct, and a space between the drums 300, 320, and 340 and the tubs 100 and 120 is used as a condensing space.

The spaces between the drums 300, 320 and 340 and the tubs 100 and 120 may be lower in temperature than the inside of the drums 300 and 320 and the tubs 100 and 120 are in contact with the cooler outside air Therefore, condensation may occur at the wall surface of the tub 100 or 120 or the condensation plate 42.

12 shows a case in which the condensing plate 42 is not installed in the tubs 100 and 120, as described above. The outer surfaces of the tubs 100 and 120 exchange heat with the outside through natural convection. The humid air discharged from the drums 300, 320, and 340 is brought into contact with the inner surfaces of the tubs 100 and 120 having low temperatures of the tubs 100 and 120, and the moisture contained therein is condensed. The embodiment of Fig. 12 is the same as the embodiment described above except that the condensing plate 42 is not used. Therefore, further explanation is omitted.

On the other hand, in the above-described embodiment, the internal space of the tub becomes a condensation space. That is, the above-described embodiments are cases where the tub is a condensing part. However, there may be a separate condenser. For example, a condensing duct can be used as in the prior art. In this case, the outer surface of the condenser is heat-exchanged with the outside through natural convection, thereby condensing the moisture of the humid air flowing inside. That is, there may be an embodiment in which the condensing portion can be added separately from the tub, and condensation is caused by natural cooling by the natural convection in the condensing portion.

In the above-described embodiment, the cooling is performed by natural cooling, but cooling water or cold air may be used for forced cooling. For example, as shown in FIGS. 13 and 14, the coolant injection unit 122 may be formed in the turbines 100 and 120 so that cooling water (cw) can be injected into the tubs 100 and 120. 13 and 14 illustrate an embodiment in which the condensing plate 42 is used in the embodiment described above, the cooling water injection unit 122 is formed in the tub and the condensation plate 42a is formed with a flow path through which the cooling water (c.w.) flows.

In this drying apparatus, the coolant injection portion 122 is formed in the turbore 120. The coolant injection unit 122 is formed under the hot air outlet.

The cooling water injection unit 122 may be configured to inject cooling water (c.w.) into the space between the tub and the drum. Or a structure in which cooling water is supplied to flow the cooling water on the inner wall surface of the tub. In the present embodiment, cooling water (cw) is supplied between the condensing plate 42 and the tub wall surface and flows on the condensing plate 42. The cooling water c.w. can be discharged to the drain port formed in the lower portion of the tub.

The cooling water channel may be formed in the ejection plate 42 so that the cooling water cw flows in a zigzag form. The cooling water flow path may be formed by forming a groove 42a in the condensing plate.

14 shows a cross-section of the condensing plate 42 mounted on the inner surface of the tub. A groove 42a is formed in the condensing plate 42 in the direction toward the wall surface of the tub to form the cooling water flow path. That is, a zigzag groove 42a is formed so as to protrude from the condensing plate 42 in a direction opposite to the tub wall surface so as to protrude toward the tub inner surface, thereby forming a flow path between the tub wall surface and the condensing plate 42.

At this time, the upper and lower edge portions of the condensation plate 42 are bent toward the tub wall surface to block the upper and lower portions of the space through which the cooling water (c.w.) flows. This is to prevent hot air from flowing into the space where the cooling water (c.w.) flows as much as possible. This is because the cooling water particles can flow into the drying duct 40 by hot air if the cooling water (c.w.) is directly exposed to hot air.

Unlike the embodiment shown in Figs. 13 and 14, a condensation plate may not be used. 13 and 14, the cooling water may be injected into the tub through the cooling water injection unit 122. In this case, Here, the cooling water injecting unit 122 may be shaped so that cooling water flows along the tub wall surface.

Hereinafter, the response to the case where it is determined that the filter 52 is clogged will be described with reference to FIG.

First, the detection of the clogging of the filter 52 may be performed in consideration of the operation state information of the fan 41 (S20). As described above, when the fan 41 is controlled by the PWM control method, it may be advantageous to use the number of revolutions of the fan 41 as the operation state information, and the number of rotations of the fan 41 may be controlled by the set number of revolutions It may be advantageous to use the power applied to the motor to rotate the fan 41. [

Fig. 15 shows the relationship between air volume and static pressure for the circulating flow path. Here, the air volume is the volume of air per unit time. The larger the static pressure of the circulating flow path, the greater the flow path resistance.

The line C in Fig. 15 shows the air volume-static pressure characteristics of the fan 41 and the scroll 40b. This can be obtained through wind tunnel tests. Here, the data obtained by positioning the fan 41 in the wind tunnel together with the scroll 40b and varying the static pressure in the wind tunnel under the condition that the constant input power is applied to the fan 41. [

A and B show the static pressures according to the air volume obtained by experimenting with the circulating flow path except for the fan 41 and the scroll 40b. B is when the clogging of the filter is almost 0%, and A is when the filter is partially clogged.

In order to obtain a diagram of A and B, the fan 41 and the scroll 40b are removed from the circulating flow path of the above-described washing machine, and the removed circulating flow path at one end is exposed to the atmosphere to keep it at atmospheric pressure, Lt; / RTI > Therefore, the airflow data for the pressure difference between the atmospheric pressure side and the subatmospheric pressure side is obtained.

The point at which the C-line and the line of A or B meet is the maximum air volume for each case. Of course, it is assumed that the power applied to the fan 41 at this time is the power applied when the C is obtained.

When the PWM control is used for the rotation of the fan 41, the flow path resistance of the circulating flow path increases as the filter is clogged. The air volume is reduced from FR2 to FR1, which means that the number of rotations of the fan 41 is reduced. Therefore, when the number of rotations of the fan 41 is sensed, the degree of clogging of the filter can be detected.

If the fan 41 is controlled to have the same rotational speed irrespective of the clogging of the filter, the energy for overcoming the channel resistance, which increases gradually as the degree of clogging of the filter increases, The input power will increase. Thus, in this case, the filter clogging can be detected using the input power as described above.

The controller may be provided with a reference value for the operating state information of the fan 41 as described above. The reference value may be changed depending on the degree of clogging of the filter 52 depending on the design. For example, it may be set as a reference value when 50% is clogged, or may be set as a reference value when 75% is clogged.

According to the experiment, it was confirmed that the drying time increased only by 10% compared to the case where the airtightness was not nearly blocked when the airtightness was 75%.

In order to relatively accurately detect whether or not the filter 52 is clogged, it may be desirable to detect when there is no other problem that affects the wind volume or wind speed of the hot wind. That is, other than clogging of the filter 52, it may be desirable to detect when the drying device appears to operate normally.

Such a detection point may be exemplarily determined as the following five cases (S10).

(1) When the number of revolutions of the fan 41 reaches the set number of revolutions,

(2) When the set time has elapsed after the fan (41)

(3) When the set time has elapsed after the start of the drying course,

④ When the hot air reaches the set temperature,

⑤ When set time has elapsed after operation of hot air heater (44).

The detection of the clogging of the filter when the number of revolutions of the fan 41 or the set time after the operation of the fan 41 has elapsed is detected in a state in which there is no problem of the fan 41 itself and the clogging of the filter 52 is detected So as to be more accurate.

Further, even if it is determined that the drying course normally proceeds to such an extent that the drying course has been started and the set time has elapsed, if there is a change in the operating state information of the fan 41, it can be considered that the filter 52 is also clogged . The drying apparatus may be provided with a device capable of diagnosing a failure of each component. Thus, in the case where a failure occurs in any part, the progress of the drying course may be programmed so as not to reach the set time.

In addition, since the operation of the hot air heater 44 may be programmed so that an error occurs in any part of the drying apparatus, the operating time of the hot air heater 44 may be used to determine the sensing time. For example, the above-described sensing may be performed after a set time has elapsed since the control temperature of the hot air heater reached the set temperature. The hot air heater may be controlled to be turned on at a first set temperature (e.g., 106 占 폚) and at a second set temperature (e.g., 100 占 폚) lower than the first set temperature The above-described sensing can be performed after the set time has elapsed.

If the air flow rate or the wind speed decreases due to the clogging of the filter 52, the temperature of the hot air may rise.

On the other hand, one of the components that greatly affects the wind speed and the air volume is the fan 41, so that it may be programmed to check whether the fan 41 is faulty or not. That is, if it is detected that the operation state information is out of the normal range (when the filter is not blocked) even though the number of revolutions of the fan 41 is equal to or greater than the set value, it may be programmed to determine that the filter 52 is blocked.

When it is determined that the filter 52 is clogged, the correspondence thereto will be described.

First, when it is necessary to notify the user that the filter 52 is blocked, a user notification signal is output. Such an output may be a visual or auditory output. The visual output may be a message on the display screen such as the LCD screen that the filter 52 is blocked. Alternatively, it may be visually informed by emitting light. For example, the user may be informed of the clogging of the filter 52 by the emission of the LED lamp mounted on the control panel of the drying apparatus. Audible output can alert the user by making a sound, such as a buzzer.

The user notification signal may vary depending on the degree of clogging of the filter 52. For example, the degree of clogging of the filter 52 can be determined according to the number of revolutions of the fan 41, and thus the output size of the user notification signal as described above can be made different.

The control panel may have a means for receiving a predetermined command as a process for blocking the filter 52 from the user. For example, the control panel may have a means for inputting a command 'filter cleaning'. When the command is input, the controller can perform a program for cleaning the filter according to a predetermined program (S30). Of course, there may be no such user command input means for filter cleaning. In this case, it may be the case that the filter cleaning is performed automatically by the program.

The program or program for filter cleaning may vary depending on the method of cleaning the filter 52. As an example of the method of cleaning the filter 52, the following two are introduced (S60).

The water is supplied to the tubs 100 and 120 to rotate the drums 300, 320 and 340 to rotate the drums 300, 320 and 340. At this time, when the water is supplied to the tubs 100 and 120, 320, and 340, the water is sprayed by the centrifugal force, and water can be supplied to the filter 52.

(2) The filter 52 may be cleaned by operating the above-described filter cleaning unit.

The above two methods may be used alone or in combination.

Next, the point of time when the cleaning program is performed will be described.

The cleaning program may be performed on the current drying course, but may be performed after the current drying course is terminated (S40).

For example, it may be performed after the set time has elapsed after the current ongoing drying course is terminated (S50). Since the drying course is finished and the user needs time to take out the laundry, the washing program is executed after the set time after the drying course. Alternatively, if the door is opened and closed after completion of the drying course, the laundry may be seen to have been taken out, so that the washing program may be executed (S50).

The cleaning program may be programmed to be performed before the next drying course is performed (S50). If it is determined that the filter 52 is clogged, it may be programmed so that the progress of the next drying course is not performed.

The drying course may be programmed to be inactivated because a problem of overheating of the hot air heater 44 may occur if the drying course is performed while the filter 52 is clogged. That is, if it is determined that the filter 52 is blocked, the drying course can be prevented from being performed. At this time, the ongoing drying course can be programmed to stop. Alternatively, the current ongoing drying course may be programmed to continue progressing and the next drying course not to be performed.

When the drying course is inactivated so as not to proceed, the operation of the user input means associated with the drying course on the control panel may also be made inactive. That is, even if the user selects the user input means, the controller can be programmed to ignore the user input means.

Meanwhile, the washing program may be programmed to be performed when the washing course is performed (S50). In the case of washing, water is supplied to the tub, and even if the water used for washing the filter 52 is discharged, it is discharged together with the washing water through the tub, so there is less risk of contamination of laundry.

In the above-described embodiment, a washing machine combined with a washing machine is described. However, the present invention can be applied to a washing machine having a drying function. In this specification, the drying apparatus includes any apparatus having a drying function.

Description of the Related Art [0002]
100: Turb Front 120: Turbure
130: Turboback 200: Front gasket
250: rear gasket 300: drum front
320: Drum center 340: Drum bag
350: spider 351: rotating shaft
400: bearing housing 431: first radial bracket
430: second radial bracket 440, 450: axial bracket
500, 510, 520: spring dampers 530, 540: simple damper
600: base 620: cabinet rare
630: Cabinet Light 640: Cabinet Left

Claims (30)

A tub for receiving wash water during washing;
A drum rotatably installed in the drum;
A hot air heater and a fan for generating hot air to be supplied to the drum;
A filter that filters the hot air and is located at a wind accessible position caused by rotation of the drum;
A water supply hose for supplying water into the tub;
A branch hose branched from the water supply hose for supplying water into the tub through the filter; And
A controller for detecting a clogging of the filter in accordance with the operating state information of the fan and performing a clogging of the filter;
/ RTI >
The program includes a program for filter cleaning,
The filter cleaning program is started after an ongoing drying course is finished and is supplied into the tub through the water supply hose so that water is deposited on the surface of the drum, And a drying function for allowing the filter to be cleaned by dehydration water radiated from the drum by the rotating wind and the centrifugal force of the rotating drum. The method according to claim 1,
Wherein the operation state information is a rotation number of the fan. The method according to claim 1,
And the operation state information is electric power applied to the fan. The method according to claim 1,
Wherein the controller senses clogging of the filter at a frequency higher than a set rotational speed of the fan. The method according to claim 1,
Wherein the controller senses clogging of the filter at a time point or more after the start of operation of the fan. The method according to claim 1,
Wherein the controller senses clogging of the filter after the set point of time after the start of the drying course. The method according to claim 1,
Wherein the controller senses clogging of the filter when the temperature of the hot air path is higher than a predetermined temperature. The method according to claim 1,
Wherein the controller senses clogging of the filter after a set point of time after the operation of the hot air heater is started. The method according to claim 1,
Wherein the tub provides a condensation space in which hot air discharged from the drum is condensed. 10. The method of claim 9,
Wherein the condensation is performed by heat exchange through natural convection outside the tub. delete The method according to claim 1,
Wherein the program comprises outputting a signal to the outside for user notification. 13. The method of claim 12,
Wherein the signal is a visual or audible signal. 13. The method of claim 12,
Characterized in that the signal is different according to the sensed result. The method according to claim 1,
Wherein the program comprises inactivating the progress of the drying course. 16. The method of claim 15,
Wherein the drying course is an ongoing course or a next course. delete delete delete The method according to claim 1,
Further comprising a filter cleaning section for supplying fluid to the filter, wherein the filter cleaning program comprises operating the filter cleaning section. delete The method according to claim 1,
Wherein the filter cleaning program is started after a set time has elapsed after the end of the drying course. The method according to claim 1,
Wherein the filter cleaning program is started after the door is opened and closed after the drying course is completed. The method according to claim 1,
Wherein the filter cleaning program is performed before the next drying course is performed. The method according to claim 1,
Wherein the filter cleaning program is started at the time of the washing course. delete The method according to claim 1,
Wherein the filter is mounted on a hot air outlet of the tub. The method according to claim 1,
A rotating shaft connected to the drum;
A bearing housing rotatably supporting the rotary shaft;
A motor for rotating the rotary shaft; And
A suspension unit coupled to the bearing housing to reduce vibration of the drum;
Wherein the drying device has a drying function. The method according to claim 1,
A drive assembly including a rotating shaft connected to the drum, a bearing housing rotatably supporting the rotating shaft, and a motor for rotating the rotating shaft; And
A flexible member sealingly sealing the wash water in the tub to prevent the washing water from flowing out to the driving unit, the flexible member being connected between the driving unit and the tub to allow the driving unit to move relative to the tub;
Wherein the drying device has a drying function. The method according to claim 1,
Further comprising a suspension unit for reducing vibration of the drum, wherein the tub is supported more rigidly than the drum is supported.

Images