KR20120017608A - Laundry machine having a drying function - Google Patents

Abstract

PURPOSE: A laundry machine with a drying function is provided to enable a controller to execute a specific program if the temperature difference between first and second temperature sensors is larger than a set value. CONSTITUTION: A drum rotates. A hot wind heater and a fan(41) generate hot wind to be provided to the drum. A filter filters the hot wind. Sensors(47,48) sense the temperature difference between separated two points in the direction in which the hot wind flows. The sensors comprise a first temperature sensor and a second temperature sensor. A controller controls the hot wind heater according to a sensing result of the first temperature sensor.

Description

Clothing device with drying function {LAUNDRY MACHINE HAVING A DRYING FUNCTION}

The present invention relates to a device having a function of drying a garment, in particular as a drying object. Such a device may be referred to as a clothing device having a drying function.

Clothing apparatus having a drying function has a drying-only device having only a drying function, there is a drying combined drying device having a washing function of the clothing. Moreover, according to the structure or the form, there exists a drum type device which dries clothes while using a rotatable drum, and a so-called cabinet type device which hangs and dries clothes.

In general, a conventional dry laundry machine includes a tub for receiving the wash water for washing water. In the tub, a drum in which laundry is located is rotatably installed.

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

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

For drying functions, drying ducts and condensation ducts are included. The drying duct is located at the top of the tub and the hot air heater and fan are installed inside. One end of the condensation duct is connected to the tub and the other end is connected to the drying duct.

In addition, cooling water is supplied into the condensation duct to condense the moisture contained in the wet air. The wet air is condensed in contact with the cooling water while flowing through the condensation duct and then introduced into the drying duct. The hot air returned back to the drying duct is reheated through the hot air heater and supplied to the tub again.

Provided is a drying apparatus capable of detecting whether a filter installed to filter lint and the like from hot air is blocked by lint or the like.

Clothing machine (laundry machine) of one embodiment according to the present invention may be installed with the filter exposed to the inside of the tub.

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

The filter may be located around the circumferential surface of the drum with respect to the drum. Thus, the filter can be cleaned by the airflow caused by the rotation of the drum. The higher the rotational speed of the drum, the stronger the wind speed of the rotary airflow, thereby obtaining an excellent filter cleaning effect.

On the other hand, the lint may be dried and adhered to the filter surface. In this case, it may be preferable to wet the dried lint by supplying moisture. In the case of the dehydration stroke, water droplets are ejected from the wet laundry through the through hole of the drum, and such water droplets may contact the filter to wet the lint. In the case of performing the dehydration stroke, the rotational speed of the drum is high and the droplets as described above can approach the filter, so that the washing effect can be better.

Alternatively, a filter washing unit for separately supplying water to the filter may be included. That is, the filter washing unit may be made to feed the wash 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 washing water or the rinsing water inside the tub may be made to approach the filter to clean the filter.

The drying apparatus of the present invention may include a sensor for sensing whether the filter is clogged. The filter filters the lint from the hot air, and the lint accumulates in the filter and may block the filter. Thus, a sensor for determining whether the filter is blocked may be included.

The sensor may be a sensor for detecting a temperature difference between two points. The two points may be two points spaced apart in the flow direction in which the hot air flows. When the filter is clogged, the temperature difference is increased when the flow of hot air is not smooth. Therefore, the degree of clogging of the filter can be determined according to the degree of temperature difference.

The two points may be a temperature difference in a path through which hot air flows. That is, it may be a position that can directly measure the ambient temperature in the path. Alternatively, the position may be an indirect measurement of the ambient temperature in the hot air path. For example, a position to measure the temperature of the surface of the duct guiding the hot air or the outside surroundings may be used.

The sensor may include a first temperature sensor and a second temperature sensor.

The first temperature sensor may be installed in the duct as described above. The second temperature sensor may also be installed inside the duct.

Alternatively, in the case of including a tub, the first and second temperature sensors may be installed in the tub.

Alternatively, one of the temperature sensors may be installed in the duct and the other temperature sensor may be installed in the duct.

The controller may include a specific program executed according to the temperature difference. Thus, it can be set to perform the program when the temperature difference is above a set value. Alternatively, the program may be set to be executed when the time change rate of the temperature difference is greater than or equal to a set value.

The program may be a specific program executed when the filter is blocked. For example, a program for notifying the user of the filter clogging, a program for cleaning the filter, and the like may be input to the controller.

In particular, in a drying apparatus without a condensation duct as a structure in which the condensation occurs inside the tub, lint or the like may contact the hot air heater to generate a fire. Therefore, it is advantageous to provide such a filter, and it may also be advantageous to have a means for determining the clogging of the filter.

On the other hand, the first temperature sensor may be used to control the hot air heater. That is, the first temperature sensor may be used in combination with respect to the operation of the hot air heater during drying. For example, when the temperature of the first temperature sensor reaches the set upper limit temperature, the hot air heater is turned off, and when the set lower limit temperature is reached, the first temperature sensor may be used to control the hot air heater to be turned on. In addition, a tub heater may be installed below the tub. The tub heater may be a heater used to heat the washing water inside the tub. In operating the tub heater, it is necessary to prevent the problem of overheating. The second temperature sensor may be used to control such operation of the tub heater.

On the other hand, 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 indirectly connected.

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

The radial bracket may be a bracket extending from the bearing housing to a radially spaced position with respect to the rotation axis. The axial bracket may be a bracket extending to a position spaced axially from the bearing housing.

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

That is, the tub may be supported flexibly to the same extent as the suspension unit, or may be supported so that the movement is more rigid than such support. For example, the tub may be supported by the suspension, or may be supported by something like a rubber bushing, which is less flexible than the suspension but can be flexible to some extent, or may be completely stationary.

If you look at an example that the tub is supported more rigidly than the suspension unit as follows.

First, the tub may be formed integrally with at least a part of the cabinet. For example, the tub and the cabinet may 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, 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 greater than that of the suspension unit with respect to the vertical direction, which is the main vibration direction of the drum.

Such a tub may be expanded to the extent possible within the space in which it is installed. That is, the tub is a wall or frame (eg, left or right side plate of the cabinet) that restricts the size of the space in the horizontal direction at least in the left and right direction (the direction perpendicular to the axial direction when the axis of rotation is horizontal). Can be extended to a degree close to). Here, the tub may be made integrally with the left or right wall of the cabinet.

In the left and right directions, the tub may be formed closer to the wall or the frame than the drum. For example, the tub may be formed to be separated from the wall or the frame at an interval of 1.5 times or less than the interval with the drum. The drum can also be extended in the left-right direction while the tub is extended in the left-right direction as such. In addition, the smaller the horizontal gap between the tub and the drum, the more the drum can expand in the horizontal direction. In reducing the lateral gap between the tub and the drum, it is possible to consider the lateral vibration of the drum. The smaller the vibration in the left and right direction of the drum, the larger the diameter of the drum can be. Therefore, the suspension unit which buffers the vibration of the drum can be made so that the rigidity in the left and right directions is greater than in the other directions. For example, the suspension unit may be made so that the rigidity for the displacement in the left and right directions is maximum compared to the other directions.

In addition, in the suspension unit, unlike the conventional tubing, it can be directly connected to the bearing housing for supporting the rotating shaft connected to the drum.

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

Meanwhile, the suspension unit may include at least two suspensions spaced apart in the axial direction of the rotation shaft.

In addition, the suspension unit may include a plurality of suspensions which are installed at the lower portion of the rotating shaft to support the support object (for example, a drum). Alternatively, the suspension unit may include a plurality of suspensions installed on an upper portion of the rotating shaft to support the object to be suspended. Such cases have a form that can be supported with a suspension only below or above the rotation axis.

The center of gravity of the vibrating body, including the drum, the rotating shaft, the bearing housing, the motor, and the like may be located at the side with the motor at least relative to the longitudinal shape center of the drum.

At least one suspension may be located at the front or the rear of the center of gravity. In addition, one suspension may be installed before and after the center of gravity.

The tub may have an opening in the rear portion. In addition, the driving unit including a rotating shaft, a bearing housing, a motor, and the like may be connected to the tub through a flexible member. The flexible member may be made to seal wash water from flowing through the rear opening of the tub while allowing relative movement with respect to the tub of the drive. Such a flexible member may be a sealable and flexible material, and may be made of a gasket material such as a front gasket. In this case, for convenience, the gasket may be referred to as a rear gasket. The drive side connection of the rear gasket may be connected in a rotational restrained state at least with respect to the rotational direction of the rotating shaft. In one embodiment, the rear gasket may be directly connected to the rotating shaft, or may be connected to an extension of the bearing housing.

In addition, a portion of the driving unit located in front of the connection portion with the rear gasket that can be exposed to the wash water in the tub may be made to prevent corrosion by the wash water. For example, the coating may be applied, or the front part may be wrapped with a separate part made of a plastic material (eg, a tubback to be described later). In the case of the metal part of the drive unit, it is possible to prevent corrosion by preventing direct exposure to water.

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

Drying apparatus of an embodiment according to the present invention can detect that the filter is clogged by lint or the like. According to the exemplary embodiment, the user may automatically or programmatically respond to the filter clogging to prevent a decrease in drying performance due to the clogging of the filter.

1 is a partially assembled perspective view of a first embodiment of the present invention.
2 shows a tub and a drying module of the first embodiment.
Fig. 3 is a partial sectional view of the hot air inlet portion of the first embodiment.
4 shows the inside of the tub.
5 is a partial cross-sectional view of the filter assembly installed in the hot air outlet.
6 shows a filter assembly.
7 shows the wire filter on the left side and the perforated filter on the right side.
8 shows how the wash water is scattered around the impact surface.
9 shows a state in which the washing water is distributed through the shower nozzle to supply water to the filter.
10 shows the filter projected radially to the outer circumferential surface of the drum.
11 shows a circulation path of hot air.
12 shows a second embodiment.
13 and 14 show a third embodiment.
15 shows the temperature difference between two points in the hot air path depending on whether the filter is clogged.
16 is a flowchart of a method of controlling the drying apparatus according to the sensed temperature difference.

1 is a partial exploded perspective view of an exemplary clothing device of the present invention. Figure 1 is intended to show the approximate overall structure of the embodiment and some components may be omitted. In addition, the clothing device of Figure 1 is a dry combined laundry device having both a drying function and a washing function. In this embodiment, the condensation unit is a tub.

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

The tub front 100 and the tubular 120 may be assembled by screws, and form a space in which the drum is accommodated. The tubular 120 has an opening at the rear side. The tubular 120 is connected to the rear gasket 250 that is a flexible member in the portion forming the opening. In addition, the rear gasket 250 may be connected to the tub back 130 at a radially inner portion. The tub back 130 has a through hole through which a rotating shaft passes. The rear gasket 250 is made so that the vibration of the tub back 130 can be flexibly deformed to the extent that the vibration of the tub back 130 is not transmitted to the tubular 120.

The rear gasket 250 is connected to the tub back 130 and the tubular 120 so as to be respectively sealed so that the wash water in the tub does not leak. The tubback 130 vibrates with the drum when the drum rotates, and is spaced apart from the tubular 120 at a sufficient interval so as not to interfere with the tubular 120. Since the rear gasket 250 may be flexibly deformed, the tubback 130 allows relative movement without interfering with the tubular 120. The back gasket 250 may have a curved or pleated portion 252 that may extend to a sufficient length to allow such relative movement of the tubback 130.

The tub has an entrance to its laundry at its front part. The front side of the tub with such an entrance to prevent the washing water outflow through the entrance, prevent the flow of laundry or foreign matter between the tub and the drum, or a front gasket 200 for other functions is to be installed Can be.

The drum may include a drum front 300, a drum center 320, a drum bag 340, and the like. In addition, a ball balancer may be installed at the front part and the rear part of the drum, respectively. The drum bag 340 is connected to the spider 350, the spider 350 is connected to the rotating shaft 351. The drum is rotated in the tub by the rotational force transmitted through the rotating shaft 351.

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

The stator 80 is fixed to the bearing housing 400. The rotor is positioned around the stator 80. As described above, the rotor is directly connected to the rotation shaft 351. The motor is an outer rotor type motor that is directly connected to the rotating shaft 351.

The bearing housing 400 is supported from the cabinet base 600 through the 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 extended in the radial direction, and axial brackets 440 and 450 extending in the front-rear direction or the rotation axis direction of the drum.

In addition, 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 that are inclined with respect to the front-rear direction. The suspension unit is not connected to the cabinet base 600 in a completely fixed manner, but is connected to allow some degree of elastic deformation to allow the drum to move forward and backward and to the left and right. That is, the suspension unit 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 vertically installed suspension for such elastic support may be installed in the base 600 via a rubber bushing. The vertical installation of the suspension can be configured to elastically dampen the vibration of the drum and the tilted installation can be configured to damp the vibration. That is, in the vibration system including the spring and the damping means, the vertical installation may serve as a spring and the tilted installation may serve as a damping means.

The tub is fixedly installed in the cabinet, the vibration of the drum is buffered by the suspension unit. The tub may have its front and rear parts fixed to the cabinet. The tub may be seated and supported on the base of the cabinet, and furthermore, the tub may be fixed to the base.

The drying apparatus of this embodiment may be said to be a form in which the tub and drum support structures are separated. In addition, the tub may be referred to as a drying device of the structure does not vibrate even if the drum vibrates. Here, the vibration amount of the drum delivered to the tub may vary depending on the rear gasket.

In addition, in the drying apparatus of the present embodiment, because the vibration of the tub is remarkably small, the gap that is maintained due to the vibration is not required because the vibration of the tub is different from the prior art, so that the outer surface of the tub may be located as close as possible to the cabinet. And this makes it possible to expand the size of the tub even without expanding the size of the cabinet, and to increase the capacity of the drying apparatus in the size of the same appearance.

Substantially, the distance between the cabinet light 630 or the cabinet left 640 and the tub may be about 5 mm. In a drying apparatus in which a tub vibrates together, the vibration of the tub was about 30 mm at intervals so as not to interfere with the cabinet. If the diameter of the tub is considered, the diameter of the tub can be expanded by 50 mm more than in the conventional embodiment. This makes a significant difference to the extent that the capacity of the drying apparatus can be increased by one step at the same appearance size.

On the other hand, Figure 2 shows the drying duct 40 and the like installed on the tub (100, 120). 3 shows a cross section of the front upper part of the tubs 100 and 120 to which the drying duct 40 is connected.

First, the tub (100, 120) has a front portion 101 located in front of the discharge opening of the drum (300, 320, 340) in the front portion. The front portion 101 is formed with a rim 102 protruding forward, the front gasket 200 is inserted into the front portion of the rim 102. The rim 102 is formed such that the upper side protrudes further forward than the lower side.

Then, the hot air inlet 103 for the hot air inlet 103 is formed on the upper portion of the rim (102). The hot air inlet 103 is formed to protrude upward from the upper portion of the rim 102. The protruding angle of the hot air inlet 103 is within 45 degrees with respect to the virtual plane on which the discharge openings of the drums 300, 320, 340 are placed. In this embodiment, they are parallel within 10 degrees.

Both ends of the drying duct 40 is in direct communication with the tub (100, 120). The drying apparatus of this embodiment does not include a condensation duct separately from the conventional method. Thus, the drying duct 40 is in direct communication with the tub (100, 120). That is, the circulation flow path of the hot air is conventionally formed as "dry duct-tub-drum-tub-condensation duct-dry duct", but in this embodiment, the circulation flow path is formed as "dry duct-drum-tub-dry duct". . The conventional circulation flow path is complicated and long because condensation ducts exist and hot air flows between the tubs 100 and 120 and the wall surfaces of the drums 300, 320 and 340. More specifically, in the related art, hot air is introduced between the inner wall surface of the front portion of the tub and the outer surface of the front portion of the drum toward the outer surface of the drum. In addition, since hot air is introduced between the drum and the wall of the tub, some of the hot air does not flow into the drum but remain in the tub as it is and is discharged into the condensation duct. In addition, if the circulation passage is complicated and long, heat loss may occur accordingly, and the flow path resistance may increase.

In this embodiment, the drying duct 40 is connected to the connection duct 40a inserted into the hot air inlet 103 and the hot air outlet 121 formed in the tubs 100 and 120, and the fan 41 is positioned therein. Scroll 40b. The hot air heater 44 is installed between the connection duct 40a and the scroll 40b of the drying duct 40.

In addition, a first temperature sensor 47 capable of sensing the temperature of the hot air is installed in the drying duct 10. In addition, a second temperature sensor 48 is provided below the tub.

The temperature sensors 47 and 48 are spaced apart from each other in a direction in which hot air flows, and are connected to a controller and transmit the sensed signal to the controller.

15 shows the temperature sensed by the temperature sensors 47 and 48. The graph on the left in Fig. 15 shows the case in which the filter is almost not blocked, and the graph on the right is for the case where the filter is blocked. In the above graphs, the temperature of the first temperature sensor 47 is T1, the temperature of the second temperature sensor 48 is T2, and the temperature difference is ΔT.

The filter 52, which will be described later, is installed in the path through which the hot air flows to filter foreign substances such as lint that may be included in the hot air. The filter 52 may be clogged by foreign matter or the like. When the filter 52 is clogged, hot air does not flow smoothly, and as shown in FIG. 15, the temperature difference ΔT between the first temperature sensor 47 and the second temperature sensor 48 is changed.

Since the first temperature sensor 47 is located closer to the hot air heater than the second temperature sensor 48, the temperature increases, but the second temperature sensor 48 reduces the hot air to transfer heat of the hot air heater. Can go down.

The temperature difference ΔT between the first temperature sensor 47 and the second temperature sensor 48 may vary depending on the degree of clogging of the filter. When the temperature difference ΔT is greater than or equal to a set value, the controller executes a specific program which will be described later.

The first temperature sensor 47 and the second temperature sensor 48 may be installed at different positions from the present embodiment. The temperature sensors 47 and 48 may be positioned differently from the present embodiment if the temperature difference ΔT is changed according to the degree of clogging of the filter.

The front gasket 200 coupled to the front portion of the rim 102 of the tub 100 and 120 is formed with a duct connecting portion 201 inserted into the hot air inlet 103, and a connection duct 40a and a hot air inlet ( 103). The connection duct 40a is inserted into the duct connection 201 of the front gasket 200. The connection duct 40a is assembled with a portion of the drying duct 40 on which the hot air heater 44 is installed, and downwards therebetween the duct connection 201 of the front gasket 200 in the hot air inlet 103. Assembled in a snug fit.

As shown in Figure 3, the hot air inlet 103 is located in front of the discharge opening of the drum (300, 320, 340). The outlet of the connection duct 40a inserted into the hot air inlet 103 is also positioned in front of the outlet of the drums 300, 320, and 340.

On the other hand, as shown in Figure 3, the outlet of the tub (100, 120) is located in front of the hot air inlet (103). In addition, at least an upper portion of the door glass 91 of the door 90 that opens and closes the discharge opening is inclined downward toward the drums 300, 320, and 340. The door glass 91 is located below the hot air inlet 103. Then, the hot air discharged from the connecting duct 40a is directed downward to the door glass 91 to be turned toward the drum 300, 320, 340. That is, the upper portion of the door glass 91 helps to direct the hot air discharged from the connection duct 40a into the drums 300, 320, and 340.

In this embodiment, almost all the hot air may flow into the drums 300, 320, and 340. Conventionally, hot air is introduced between the front parts 101 of the tubs 100 and 120 and the front parts of the drums 300, 320 and 340, and the inflow direction of the hot air is also the front parts of the drums 300, 320 and 340. This is the direction in which it hits perpendicular to. Thus, in the related art, only about 30% of the hot air flowing from the drying duct 40 may be introduced into the drums 300, 320, and 340. The remaining 70% of the hot air flows between the drums 300, 320 and 340 and the tubs 100 and 120, and is discharged into the condensation ducts, thereby inefficiency that cannot be utilized to dry the clothes located inside the drums 300, 320 and 340. There was this.

In this embodiment, the tub 100, 120 is installed is tilted so that the front portion is higher than the rear portion. Thus, the front portion 101 of the tub (100, 120) is also tilted at such an angle with respect to the vertical line. The drums 300, 320, and 340 are also tilted at similar angles.

However, the discharge openings of the tubs 100 and 120 are formed parallel to the vertical line without being tilted. This is achieved by further protruding forward the top of the rim 102 of the tub 100, 120. That is, the upper portion of the rim 102 further protrudes forward from the front portion 101 of the tub 100, 120 inclined at a predetermined angle with respect to the vertical line to form a discharge opening parallel to the vertical line.

As the tubs 100 and 120 are tilted as described above, a predetermined space is secured between an upper portion of the front portion 101 of the tubs 100 and 120 and an inner surface of the front side of the cabinet. Then, the connection duct 40a is installed in the secured space. Of course, the tub 100, 120 may not be tilted unlike the above.

Also, 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. In this embodiment, since the tubs 100 and 120 hardly vibrate compared to the drums 300, 320 and 340, the tubs 100 and 120 may stably support the drying duct 40. Specifically, in the present embodiment, the front portion 101 of the tubs 100 and 120 is fastened to a cabinet front plate (not shown), and the rear portions of the tubs 100 and 120 are screwed or bolted to the cabinet back plate 620. do. In addition, the tubs 100 and 120 are installed to be self-standing on the bottom plate 600 of the cabinet.

Referring to Figure 2, the drying duct 40 is installed in the upper center of the tub (100, 120), one end is inserted into the hot air inlet 103 by the connecting duct 40a, the other end is bent sideways The fan 41 is connected to the hot air outlet 121 of the tub (100, 120) through the scroll (40b) is installed.

The hot air heater 44 for generating hot air is installed in the front portion of the drying duct 40 in the upper portion of the tub (100, 120). The air blown by the rotation of the fan 41 is heated by the hot air heater 44.

In addition, the portion of the drying duct 40 in which the hot air heater 44 is located may be high temperature due to the heat of the hot air heater 44. Thus, the heat insulating plate 45 is positioned between the hot air heater 44 portion 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 this embodiment, it is fastened with a screw.

On the other hand, as shown in Figure 2, the hot air outlet 121 is formed in the upper side portion (right side side portion in the present embodiment) of the outer peripheral surface of the tub (100, 120). Then, the scroll 40b of the drying duct 40 is installed thereon. The fan 41 located in 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 blown in the direction of the rotation axis based on the rotation axis and blows the hot air in the 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 and the direction in which the fan 41 sucks the hot air are made to coincide. This structure contributes to smoother circulation of the hot air. The hot air discharged from the tubs 100 and 120 through the hot air outlet 121 is introduced into the fan 41 in the discharge direction and blown into the drying duct 40.

The hot air inlet 103 and the hot air outlet 121 are both located on the tubs 100 and 120. The hot air inlet 103 is located at the front part, and the hot air outlet 121 is located at the rear part. In addition, the direction lines of the hot air inlet 103 and the hot air outlet 121 in the hot air advancing direction both form an angle within 10 degrees with respect to the vertical line. In addition, the direction line between the hot air inlet 103 and the hot air outlet 121 also forms an angle within 10 degrees. In this embodiment, the direction lines themselves of the hot air inlet 103 and the hot air outlet 121 are in parallel, and the directions thereof are opposite to each other.

The hot air inlet 103 and the hot air outlet 121 are communicated by the drying duct 40 located on the top of the tub (100, 120). Therefore, the hot air flows in a simple circulation path called "dry duct-tub-dry duct". Since tubs 100 and 120 have relatively large spaces, flow resistances may be relatively small. The flow path resistance in this embodiment can mainly occur in the drying duct 40. Looking at the conventional drying apparatus from this point of view, even if the flow path due to the condensation duct aside, since the condensation duct is added, the length of the duct flow path is so long that the flow resistance is large.

On the other hand, Figure 4 shows the inside of the tub (100, 120). As can be seen, a condensation plate 42 is provided on the inner circumferential surfaces of the tubs 100 and 120. The condensation plate 42 may be a metal material. Tubs 100 and 120 may also be made of metal, but may be made by injection molding of plastic. As such, when the tubs 100 and 120 are made of plastic, it may be advantageous for the condensation to install the condensation plate 42 of a metal material having stronger cold properties than the tubs 100 and 120.

In order to install the condensation plate 42, tubs 100 and 120 have three fastening bosses 129a and 129b respectively formed at upper and lower portions thereof, as shown in FIG. 2. The fastening boss is made to be screwed in the inner surface of the tub (100, 120). If the fixing of the condensation plate 42 located on the inner surface of the tub (100, 120) by tightening the screw on the outer surface of the tub (100, 120), it may be necessary to seal the fastening hole formed for screwing. However, if the fastening boss is formed so as to fasten the screw on the inner surface of the tub (100, 120) as in the embodiment here, there is no need to seal. That is, the fastening bosses 129a and 129b are formed to protrude from the outer peripheries 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.

Condensation plate 42 is installed in the center of the side of the inner peripheral surface of the tub (100, 120). The screws are fastened to the fastening bosses 129a and 129b described above using screws 42a and 42b. 4, the condensation plate 42 is installed in the center of the right inner circumferential surface where the hot air outlet 121 is located when the inner circumferential surfaces of the tubs 100 and 120 are divided into "up, down, left and right". From the perspective of the hot air outlet 121 is located on the inner circumferential surface below the hot air outlet 121 of the inner peripheral surface of the tub (100, 120). Thus, the hot air that contains moisture while passing through the drums 300, 320, and 340 is disposed 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. Will be condensed. In this case, the condensation may occur at other inner circumferential surfaces of the tubs 100 and 120, and the condensation plate 42 may be made of metal, so that the condensation plate 42 may be more effective. The condensation plate 42 may be made of stainless steel.

On the other hand, the hot air passing through the wet clothing, etc. inside the drum (300, 320, 340) for drying may contain a foreign material such as lint. Filter 52 may be installed to filter out the foreign matter. This will be described in more detail with reference to FIGS. 4 to 10.

The filter 52 is installed where it is exposed to the inside of the tub (100, 120). In particular, the filter 52 is located on the circumferential surface of the tub (100,120). Hot air outlets 121 are formed on the circumferential surfaces of the tubs 100 and 120, and the filter 52 is installed in the hot air outlets 121.

When the drums 300, 320, 340 rotate, a rotational air stream of air is formed around the drums 300, 320, 340 by the rotation. The rotary air strikes the filter 52 and removes foreign substances such as lint from the filter 52. In this case, when there is wet laundry inside the drums 300, 320 and 340, water from the laundry may be radiated to the inner walls of the tubs 100 and 120 through the through holes 321 of the drums 300, 320 and 340. As the water radiated hits the filter 52, the washing effect of the filter 52 may be enhanced.

Foreign matters such as lint may dry and adhere to the surface of the filter 52. At this time, when wetted by water, the washing may be easier.

The filter 52 is installed inside the hot air outlet 121. When the hot air outlet 121 is formed to protrude out of the tub 100 and 120 as shown, the filter 52 may be installed near the inner surface of the tub 100 and 120, particularly in the hot air outlet 121. Water from the rotating wind or the laundry by the above-described drums (300, 320, 340) (even in the case of non-dehydration stroke on the washing course, such water can be discharged from the laundry through the drum through the drum depending on the rotation speed of the drum) And, for convenience, referred to as "dehydration") can be easily accessed. In this embodiment, the hot air outlet 121 is formed to protrude upward from the rear upper portion of the tub (100, 120), the filter 52 is installed on the lower portion of the inside of the hot air outlet (121).

Unlike the present embodiment, the filter 52 may be installed to protrude into the tub 100 and 120 from the hot air outlet 121. If there is no interference with the drums 300, 320, and 340, the filter 52 may be installed by protruding further into the tub 100 and 120 outside the hot air outlet 121.

On the other hand, the filter 52 may be formed in a curved surface to have a radius of curvature equal to the radius of curvature of the inner surface of the tub (100,120). Although the filter 52 may vary somewhat depending on where the hot air outlet 121 is installed, the radius of curvature of the inner surfaces of the tubs 100 and 120 and the radius of curvature of the filter 52 may be less than 10%. Can be. Part of the rotational wind of the drum (300, 320, 340) can approach the filter 52 while flowing through the inner peripheral surface of the tub (100, 120), so that the difference in the radius of curvature may be effective for cleaning the filter.

The filter 52 may be located around the circumferential surface of the drum 300, 320, 340 in relation to the drum 300, 320, 340. The filter 52 is, of course, spaced apart so as not to interfere with the rotation of the drum, but at least half of the filter 52 overlaps the circumferential surfaces of the drums 300, 320, 340 with respect to the arrangement relationship in the front-rear direction. Can be. In other words, when the filter 52 is radially projected onto the circumferential surfaces of the drums 300, 320, 340, the projected portion (see PA in FIG. 10) is the drums 300, 320, 340. It can be installed to overlap more than half on the circumferential surface of the. This is to facilitate the access of the rotating wind or dehydration of the drum (300, 320, 340), so that the rotating wind or dehydrated to hit the filter 52 relatively strongly. 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 to which the filter 52 is mounted, as shown in FIG. The filter housing 51 includes a portion 51c extending a predetermined length as a hollow body. The filter 52 is mounted at one end of the filter housing 51. The filter housing 51 may be inserted into an inner surface of the hot air outlet 121 as shown in FIG. 5. The outer surface of the filter housing 51 may be fastened to be fixed to the inner surface of the hot air outlet 121. To this end, in the present embodiment, as shown in FIG. 6, a fastening hole 51a is formed in the filter housing 51 and fixed by screwing. Alternatively, the outer surface of the filter housing 51 may be assembled and fixed by snug-fit to the inner surface of the hot air outlet 121.

The filter housing 51 may be made to have the same length as the protruding extended length of the hot air outlet 121.

Although not shown, unlike the filter assembly as described above, the filter housing may be shaped in the form of a hollow disc. The filter may be mounted on one surface of the disk-shaped filter housing. The filter assembly of this type may be fixed to the hot air outlet 121 by hook coupling. Such a disk-shaped filter assembly may have a form in which a portion extending upwardly to a hollow body is removed in addition to the lower end of the filter housing 51 in which the filter 52 is mounted in the filter assembly 50 of FIG. 6.

On the other hand, in order to further increase the cleaning effect of the filter 52, a filter washing unit for supplying air or water to the filter 52 may be added. In the case of injecting air, hot air may be made to inject air in a direction opposite to a traveling direction passing through the filter 52 during drying.

In this embodiment, the filter washing unit supplies cleaning water (w), which is water. To this end, as shown in FIG. 2, a branch hose 11 branched from a water supply hose 10 provided to supply water into the tub 100 and 120 and connected to a water supply outlet 121a of the hot air outlet 121 is provided. It may include.

Water supplied from the branch hose 11 is supplied to an outer surface that is opposite to an inner surface of the filter 52 toward the inside of the tub 100, 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 may be watered together when the washing water is supplied to the tubs 100 and 120. A valve may be installed in the branch hose 11 or the branch hose 11 inside the branch hose 11 from the water supply hose 10. Thus, the timing at which the washing water w is supplied to the filter 52 can be adjusted. If there is no valve as described above, the washing water (w) will always be supplied to the filter 52 when water is supplied to the tubs 100 and 120.

The washing water w supplied as above is wetted with lint fixed to the filter 52 while primarily washing the filter 52. In such a state, when the drums 300, 320, and 340 rotate, the rotatable wind or dehydrated water hits the filter 52 and the filter 52 is washed.

On the other hand, the washing water (w) may be dispersed to be evenly supplied to the outer surface of the filter 52. To this end, as shown in FIG. 9, the spray body 121b, such as a shower nozzle, may be installed in the water supply port of the washing water w. In this embodiment, a collision surface 51b is provided as shown in FIG. The washing water w falls and hits the collision surface 51b and is dispersed around the filter 52.

The impingement 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. It may be a metal wire filter (see the figure above in Figure 7) made by weaving metal wires. Alternatively, it may be a perforated filter (see the lower figure of FIG. 7) made by drilling a plurality of holes in the metal plate. Since the perforated filter can make the surface of the filter 52 smooth, lint or the like can be easily removed. In the case of the metal wire filter, it may be desirable to have a mesh size of 30 mesh or less. Wire filter having a mesh size of more than 30 mesh is too small a hole and the mesh is too large may not be easy to remove lint. Here, the mesh size is determined by the number of meshes for the length of 1 inch. That is, the mesh 30 means a wire filter having a mesh size of about 30 meshes for a length of 1 inch.

The type of the filter 52 may be determined in consideration of the cleaning effect of the filter 52 according to the rotation speed of the drum (300, 320, 340). For example, it may be determined to the extent that the filter 52 can be cleaned at 400 rpm or more of the drum 300, 320, 340.

However, even if the type of the filter 52, the rotation speed of the drum (300, 320, 340) exceeded 1000rpm was confirmed that the filter 52 cleaning is achieved to a satisfactory level. In particular, it was confirmed that the washing effect of the filter 52 was excellent when the wet laundry was put in the drums 300, 320, 340 in the state in which the lint and the like accumulated in the filter 52 and dehydration was performed at 1000 rpm or more. Here, the washing water w as described above for cleaning the filter 52 was not supplied.

In one embodiment of the drying apparatus according to the present invention the filter 52 is exposed to the tub (100, 120) can be automatically washed by the rotary wind or dehydration of the drum (300, 320, 340). At this time, it may be made to be supplied separately to the washing water (w) through the filter washing unit as described above.

On the other hand, unlike the above-described embodiment, the filter 52 may be installed in a position that can be washed by the wash water stored in the tub (100,120). For example, unlike the above-described embodiment, the hot air outlet 121 may be formed under the tubs 100 and 120, and a filter 52 may be installed therein. Thus, the washing water may be washed by the rinsing water in the washing stroke or rinsing stroke of the washing course. As the drums 300, 320, and 340 are rotated, water stored in the tubs 100 and 120 forms a stream of water and rises to approach the filter 52 and may be cleaned. Alternatively, the filter 52 may be located at a place where the filter 52 may be immersed in the water stored in the tubs 100 and 120 during the washing stroke or the rinsing stroke.

In the above embodiments, washing and drying may be combined. Therefore, the water supply hose 10 described above may be connected to the tub (100, 120) via a detergent box (not shown). Thus, when washing or rinsing, water is supplied to the tubs 100 and 120 through the water supply hose 10 so that washing or rinsing may be performed.

Depending on the use, the dehydration stroke may be performed after the washing stroke and the rinsing stroke are completed, and the drying stroke may be performed after the dehydration stroke is completed. Foreign matter such as lint accumulated in the filter 52 during the drying stroke may be automatically washed in the next use following washing, rinsing, or dehydration.

Figure 11 shows the flow path of hot air during drying in the combined drying machine as described above. First, the hot air may be generated by the hot air heater 44 inside the drying duct 40 and the fan 41 installed inside the scroll 40b. Air blown by the fan 41 is heated and flowed to the high temperature by the hot air heater (44). Then, it flows in front of the drums 300, 320, and 340 through the connection duct 40a inserted into the hot air inlet 103 of the tub front, and flows into the drum through the discharge port of the drum.

The hot air introduced into the drums 300, 320, and 340 is discharged out of the drums 300, 320, and 340 through the through holes 321 formed on the walls of the drums 300, 320, and 340 while being in contact with wet clothes. do. The humid air exiting the space between the drums 300, 320, 340 and the tubs 100, 120 through the through hole 321 flows through the space between the tubs 100, 120 and the drums 300, 320, 340. The tub 100 is discharged from the tubs 100 and 120 through the hot air outlet 121 located at the rear of the tub 120. Then, the air discharged through the hot air outlet 121 is sucked by the fan 41 and blown back into the drying duct 40 to circulate.

Here, before the air is discharged through the hot air outlet 121, the moisture contained in the air is condensed while the humid air flows through the space between the tubs 100 and 120 and the drums 300, 320 and 340. For effective condensation, heat must be taken from the humid air, and the outer surfaces of the tubs 100 and 120 come into contact with the surrounding air and are released by the natural convection to the outside of the tubs 100 and 120. As such, through the natural convection through the outer surface of the tub (100, 120), the humid air between the tub (100, 120) and the drum (300, 320, 340) is deprived of heat, the moisture contained therein is condensed Will be.

At this time, water droplets due to condensation will be formed on the condensation plate 42 surface and the inner surfaces of the tubs 100 and 120. The condensation plate 42 may not be essential for natural cooling as described above. Although it may contribute to increasing the condensation rate, even without the condensation plate 42, the condensation inside the tub (100, 120) and the required condensation rate may be achieved. As such, the absence of the condensation plate 42 will be described again in another embodiment below.

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

The space between the drum (300, 320, 340) and the tub (100, 120) may be lower than the temperature inside the drum (300, 320, 340), the tub (100, 120) is in contact with the cold outside air Therefore, condensation may occur on the walls of the tubs 100 and 120 or the condensation plate 42.

12 illustrates a case where the condensation 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 comes into contact with the inner surfaces of the tubs 100 and 120 at 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 condensation plate 42 is not used. Therefore, further description is omitted.

On the other hand, in the above-described embodiment, the inner space of the tub is a condensation space. That is, the above embodiments are cases where the tub becomes the condensation unit. However, there may be a separate condenser. For example, a condensation duct may be used as in the prior art. In this case, the condensation unit condenses the moisture of the humid air flowing through the inner surface of the condensation through heat exchange with the outside. That is, the condensation unit may be added separately from the tub, there may be an embodiment in which the condensation occurs by natural cooling by natural convection in the condensation unit.

In addition, in the above-described embodiment, although the case is condensed through natural cooling, 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 tubs 100 and 120 so that the coolant (c.w.) may be injected into the tubs 100 and 120. 13 and 14 show a coolant injection part 122 formed in a tub and a flow channel through which a coolant (c.w.) flows in the condensation plate 42a in the embodiment in which the condensation plate 42 is used.

In the drying apparatus herein, the coolant injection unit 122 is formed in the tubular 120. The cooling water injection unit 122 is formed under the hot air outlet.

The cooling water injection unit 122 may have a structure for spraying the cooling water (c.w.) to the space between the tub and the drum. Alternatively, the cooling water may be configured to supply cooling water to flow along the inner wall of the tub. In this embodiment, the cooling water (c.w.) is supplied between the condensation plate 42 and the tub wall and flows through the condensation plate 42. The cooling water (c.w.) may be discharged to the drain hole formed in the tub lower.

In the condensation plate 42, a cooling water flow path may be formed to allow the cooling water (c.w.) to flow in a zigzag form. The cooling water flow path may be made by forming a groove 42a in the condensation plate.

Fig. 14 shows a cross section of the condensation plate 42 mounted on the inner surface of the tub. In order to form the cooling water flow path, the condensation plate 42 is formed with a groove 42a in the direction toward the tub wall surface. That is, the groove 42a is formed in a zigzag such that the surface of the condensation plate 42 facing the tub wall surface protrudes toward the inner surface of the tub, thereby forming a flow path between the tub wall surface and the condensation plate 42.

At this time, the upper and lower edges of the condensation plate 42 are bent toward the tub wall to block the upper and lower portions of the space in which the coolant (c.w.) flows. This is to prevent hot air from entering the space where the coolant (c.w.) flows. This is because when the cooling water (c.w.) is exposed to the hot air as it is, the cooling water particles may flow into the drying duct 40 by the hot air.

On the other hand, unlike the embodiment shown in Figures 13 and 14, the condensation plate may not be used. That is, in the embodiment of FIGS. 13 and 14, the coolant may be made to be injected into the tub through the coolant injection unit 122. In this case, the coolant injection unit 122 may be formed so that the coolant flows along the tub wall.

Hereinafter, with reference to FIG. 16, the response to the case where it is determined that the filter 52 is blocked according to the temperature difference DELTA T will be described.

First, in order to detect whether the filter 52 is clogged relatively accurately, the sensing may be performed when there is no other problem in the above-described temperature difference ΔT. That is, it may be preferable that the sensing is performed at a time point other than clogging of the filter 52 when the drying device seems to operate normally.

Such a sensing time point may be determined in the following four cases as an example (S10).

① When the rotation speed of the fan 41 reaches the set rotation speed,

② When the set time has elapsed since the fan 41 was started,

③ When the set time has elapsed since the start of the drying course,

④ When the set time has elapsed since the operation of the hot air heater (44).

In the above, when the rotation speed of the fan 41 or the set time elapses after the fan 41 is activated, the sensing is not a malfunction of the fan 41 itself. This is because it can be considered as the blockage of (52). In addition, even if it is determined that the drying course starts normally after the drying course starts and the set time elapses, if the temperature difference ΔT is determined to be out of normal, the filter 52 may be considered to be clogged. to be. The drying apparatus may be provided with a device for diagnosing failure of each component. Thus, in the event of a failure of any part, the drying course may be programmed to not reach the set time.

In addition, if an error occurs in any part of the drying apparatus, since the operation of the hot air heater 44 may be programmed so that the sensing time may be determined using the operating time of the hot air heater 44. For example, the sensing may be performed after the set time has elapsed since the control temperature of the hot air heater reaches the set temperature. The hot air heater may be controlled to be turned off at a first set temperature (eg, 106 ° C.) and to be turned on at a second, lower set temperature (eg, 100 ° C.), and the hot air heater may be initially operated to operate at the first set temperature. After the set time has elapsed since reaching, the above sensing can be performed.

The signal sensed at the time of sensing determined under the above condition is transmitted to the controller (not shown).

The controller may determine whether the filter 52 is blocked by comparing the sensed temperature difference ΔT with a set value. For example, when the temperature difference ΔT is equal to or greater than the set value, it may be determined that the filter 52 is blocked.

In this case, considering that the hot air heater is controlled to be turned off at the first set temperature and turned on at the second set temperature as described above, it may be determined as a filter clogging when the temperature difference is sensed to be higher than the set value for the set time. . In addition, when the temperature difference is sensed more than the set value during the set time or more than the set number of times it may be determined by filter clogging. Such conditions for determining filter clogging are intended to exclude cases where the filter is temporarily blocked by other causes, such as being blocked by water film with water.

On the other hand, one of the components that have a large influence on the wind speed or air volume is the fan 41 may be programmed to check whether the fan 41 is broken. For example, it may be programmed to normally process the signal sensed by the sensors 47 and 48 when the rotation speed of the fan 41 is greater than or equal to the set value. That is, even though the rotation speed of the fan 41 is greater than or equal to the set value, it may be programmed to determine that the filter 52 is blocked if the temperature difference ΔT is detected to be greater than or equal to the set value.

According to the design, the set value may be changed depending on how much the filter 52 is blocked. For example, when 50% blocked, the reference value may be set, or 75% blocked when the reference value may be set. According to the experiment, when the 75% blocked, it was confirmed that the drying time increased only within 10% compared to when it was hardly blocked.

Of course, the reference value may be set to a plurality so as to consider the degree of clogging as described above. Thus, it can be programmed to detect the degree of blockage of the filter instead of simply determining whether the filter is blocked.

When it is determined that the filter 52 is blocked by the sensing signal, a corresponding response thereof will be described.

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

The user notification signal as described above may vary depending on the degree of blockage of the filter 52. The degree of filter clogging may be determined according to the degree of the sensed signal, and accordingly, the output size of the user notification signal may be different.

The control panel may have a means for receiving a predetermined command from the user as a process for clogging the filter 52. For example, the control panel may have a means for inputting a command of 'filter cleaning', and when the command is input, the controller may execute a program for filter cleaning according to a predetermined program (S30). Of course, there may be no such user command input means for filter cleaning. In this case, the filter may be automatically cleaned programmatically.

The program for filter cleaning may vary depending on the filter 52 cleaning method. As an example of the filter 52 cleaning method, two will be introduced below (S60).

① by rotating the drum (300, 320, 340) to wash the filter 52 in the drum (300, 320, 340) rotation wind, in this case, when water is supplied to the tub (100, 120) drum (300, The water may be buried in the surface of the filter 320 and 340 and sprayed by centrifugal force to supply water to the filter 52.

② It is possible to clean the filter 52 by operating the filter cleaning unit described above.

These two methods may be used alone or in combination.

Next, a time point of performing the above washing program will be described.

The washing program as described above may be performed in a drying course currently in progress, or may be performed after the current drying course is finished (S40).

For example, it may be performed after a set time has elapsed after the current drying course ends (S50). Since the drying course is finished and the user needs time to take out the laundry, the washing program is performed after the set time after the drying course. Alternatively, when the door is opened and closed after the completion of the drying course, the laundry may be considered to be taken out, and thus, the washing program may be detected and performed (S50).

The washing 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 to not proceed to the next drying course.

If the drying course is performed while the filter 52 is blocked, the overheating problem of the hot air heater 44 may occur, so the drying course may be programmed to be inactivated. That is, when it is determined that the filter 52 is clogged by the sensors 47 and 48, the drying course may not be performed. At this time, the ongoing drying course may be programmed to stop. Alternatively, the ongoing drying course may be programmed to continue as it is and the next drying course is not performed.

When the drying course is inactivated so as not to proceed, the control panel may be made to deactivate the operation of the user input means related to the drying course. That is, even if the user selects the user input means, the controller may be programmed to ignore it.

On the other hand, the washing program may be programmed to be performed when the washing course proceeds (S50). When washing, water is supplied to the tub, and even if there is water used to clean the filter, it is discharged together with the washing water through the tub, so there is little concern about contaminating the laundry.

In the above-described embodiment has been described a dry-use washing machine as a drying device that combines laundry, the present invention can be applied to any device having a drying function. Drying apparatus in the present specification includes all if the device having a drying function.

Description of the main parts of the drawing
100: tub front 120: turbine
130: tub bag 200: front gasket
250: rear gasket 300: drumfront
320: drum center 340: drum bag
350: spider 351: rotary shaft
400: bearing housing 431: first radial bracket
430: second radial bracket 440, 450: axial bracket
500, 510, 520: Spring damper 530, 540: Simple damper
600: base 620: cabinet rare
630: cabinet light 640: cabinet left

Claims (37)

A drum rotatably installed;
Hot air heaters and fans to generate hot air;
A filter for filtering the hot air;
A sensor for detecting a temperature difference between two points spaced apart in the direction in which the hot air flows;
Clothing device having a drying function comprising a. The method of claim 1,
The sensor is a clothing device having a drying function, characterized in that it comprises a first temperature sensor and a second temperature sensor installed in the path through which the hot air flows. The method of claim 2,
The first temperature sensor is a clothing device having a drying function, characterized in that installed in the duct for guiding the hot air to be introduced into the drum. The method of claim 3,
Clothing device having a drying function, characterized in that the hot air heater is controlled according to the sensing result of the first temperature sensor. The method of claim 3,
The second temperature sensor is a clothing device having a drying function, characterized in that installed in the tub to accommodate the wash water when washing. The method of claim 5,
The second temperature sensor is a clothing device having a drying function, characterized in that installed in the lower portion of the tub. The method of claim 1,
Apparel apparatus having a drying function, characterized in that determined by filter clogging when the temperature difference is maintained above a set value for a set time. The method of claim 7, wherein
Apparatus having a drying function, characterized in that it is determined by clogging the filter when the temperature difference is maintained more than the set value for a set time for a plurality of times. The method of claim 1,
The sensor is a clothing device having a drying function, characterized in that for sensing at a predetermined rotational speed of the fan. The method of claim 1,
The sensor is a clothing device having a drying function, characterized in that for sensing at the set time after the operation of the fan. The method of claim 1,
The sensor is a clothing device having a drying function, characterized in that for sensing at the set time after the start of the drying course. The method of claim 1,
The sensor is a clothing device having a drying function, characterized in that for sensing at the set time after starting the hot air heater operation. The method of claim 12,
The sensing device is a clothing device having a drying function, characterized in that after the set time has elapsed since the control temperature of the hot air heater reaches the set temperature. The method of claim 1,
And a tub for accommodating the washing water during washing and providing a condensation space in which the hot air discharged from the drum is condensed. The method of claim 14,
The condensation is a clothing device having a drying function, characterized in that made by heat exchange through natural convection outside the tub. The method of claim 1,
Clothing device having a drying function further comprising a controller including a program to perform when the filter clogging. The method of claim 16,
The program is a clothing device having a drying function, characterized in that it comprises outputting a signal to the outside for user notification. The method of claim 17,
The output signal is a clothing device having a drying function, characterized in that the visual or audio signal. The method of claim 17,
The clothing device having a drying function, characterized in that the output signal is different depending on the sensed signal. The method of claim 16,
The program is a clothing device having a drying function comprising inactivating the progress of the drying course. The method of claim 20,
The drying course is a clothing device having a drying function, characterized in that the course in progress or the next course. The method of claim 16,
The program is a clothing device having a drying function, characterized in that it comprises a program for cleaning the filter. The method of claim 22,
The filter is located in a place where the wind caused by the rotation of the drum is accessible, the filter cleaning program, characterized in that the clothing device comprising a drying function for rotating the drum. The method of claim 23, wherein
The filter cleaning program is a clothing device having a drying function, characterized in that it comprises watering the tub. The method of claim 22,
And a filter washing unit for supplying a fluid to the filter, wherein the filter washing program includes operating the filter washing unit. The method of claim 22,
The filter cleaning program is a clothing device having a drying function, characterized in that is started after the ongoing drying course ends. The method of claim 26,
The filter cleaning program is a clothing device having a drying function, characterized in that started after a set time elapses after the end of the drying course. The method of claim 26,
The filter cleaning program is a clothing device having a drying function, characterized in that the door is opened and closed after the drying course ends. The method of claim 26,
The filter cleaning program is a clothing device having a drying function, characterized in that performed before the next drying course is performed. The method of claim 26,
The filter cleaning program is a clothing device having a drying function, characterized in that initiated during the course of the washing course. The method of claim 22,
The filter cleaning program is a clothing device having a drying function, characterized in that initiated in response to input of a user command. The method of claim 1,
A tub containing a wash water at the time of washing, wherein the filter is a clothing device having a drying function, characterized in that located in the hot air outlet of the tub. The method of claim 2,
Further having a tub heater and a tub for receiving the washing water during washing, wherein the hot air heater is controlled according to the first temperature sensor, the tub heater is characterized in that the controlled by the second temperature sensor Clothing device having a drying function. The method of claim 1,
A rotary shaft connected to the drum;
A bearing housing rotatably supporting the rotating shaft;
A motor for rotating the rotary shaft; And
A suspension assembly connected to the bearing housing to reduce vibration of the drum;
Apparatus having a drying function further comprising a. The method of claim 1,
Tub for receiving the wash water at the time of washing;
A drive assembly including a rotary shaft connected to the drum, a bearing housing for rotating and supporting the rotary shaft, and a motor for rotating the rotary shaft; And
A flexible member that seals the wash water in the tub so as not to flow out to the driving part, but flexibly connects the driving part and the tub to allow the driving part to move relative to the tub;
Apparatus having a drying function further comprising a. The method of claim 1,
Suspension assembly for reducing the vibration of the drum and a tub for receiving the wash water at the time of washing further comprises the tub is a garment having a drying function, characterized in that the drum is supported more rigidly than the drum is supported Device. In the control method of the clothing device having a drying function comprising a filter for filtering hot air,
Turning on the hot air heater;
Turning on the fan;
Sensing a temperature difference between two points spaced apart from each other along the flow direction of the hot air;
Executing a program set according to the sensed temperature difference;
Control method of a clothing device having a drying function comprising a.

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