JP2015002847A - Drum-type washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drum-type washing and drying machine which can remove lint captured by a lint filter sufficiently and can prevent drying performance degradation.SOLUTION: A drum-type washing and drying machine comprises: a drying chamber 14 taking clothing inside; a circulation air course 20 provided in the drying chamber 14 and connecting an intake vent 10 and an exhaust vent 11; ventilation means 36 circulating air in the drying chamber 14 through the circulation air course 20; dehumidification means 34 dehumidifying air flowing through the circulation air course 20; heating means 35 heating air in the circulation air course 20; a planar lint filter 58 capturing lint drifting in the circulation air course 20; cleaning means 60a and 60b cleaning the lint filter 58; and a drive mechanism 62 moving the lint filter 58 for the cleaning means 60a and 60b so that the cleaning means 60a and 60b collects the lint captured by the lint filter 58.

Description

  Embodiments described herein relate generally to a drum-type washing and drying machine.

  The drum type washing and drying machine is configured in a water tank so that a rotating drum is driven to rotate by a drum driving means such as a motor, and by controlling the supply / drainage into the water tank and the rotation of the rotating drum. Washing, rinsing, dehydration, and drying are performed on the laundry put into the rotating drum from the laundry entrance / exit.

  In the drying operation, the air in the water tank is taken into the circulation air path from the intake port and circulated by driving the blower provided in the circulation air path outside the water tank, the heat absorber for dehumidification, and the heat source for heating. After being dehumidified and heated by a heat absorber and a heat source during circulation in the air passage, the air is returned from the exhaust port into the water tank. As a result, in the drying operation, air deprived of moisture from the laundry in the rotating drum is dehumidified and heated in the circulation air passage from the intake port, and then returned to the water tank from the exhaust port. Dry the laundry in the rotating drum.

  In such a drum-type washing and drying machine, lint such as lint generated from the laundry along with the execution of the drying operation is taken into the circulation air passage together with the air in the water tank, and accumulated in the blower, heat absorber, heat source, etc. In order to prevent this, it is known that a lint filter that captures lint is provided on the upstream side of a blower, a heat absorber, a heat source, or the like in a circulation air passage (see, for example, Patent Document 1 below).

  However, if the user does not clean the lint filter regularly, not only does the lint filter become clogged and the drying performance becomes unstable, but a part of the lint accumulated in the lint filter passes through the lint filter. Then, it may adhere to a downstream evaporator (dehumidifying means) or condenser (heating means). In particular, when lint adheres to an evaporator or a condenser, cleaning by the user is difficult, and as this progresses, the amount of circulating air decreases, leading to a decrease in drying performance.

JP 2006-55381 A

  Then, it aims at providing the drum type washing-drying machine which can fully remove the lint captured with the lint filter, and can prevent the fall of drying performance.

  The drum-type washing and drying machine according to the present invention includes a drying chamber for storing clothes therein, a circulation air passage connecting an intake port and an exhaust port provided in the drying chamber, and air in the drying chamber as the circulation air. A blowing means for circulating through the passage, a dehumidifying means for dehumidifying the air flowing in the circulating air passage, a heating means for heating the air in the circulating air passage, and a surface for capturing the lint flowing in the circulating air passage A lint filter having a shape, a cleaning unit that cleans the lint filter, and a drive mechanism that moves the lint filter relative to the cleaning unit so that the cleaning unit collects lint captured by the lint filter. It is characterized by.

It is a perspective view from the front of the clothes dryer concerning a 1st embodiment. It is sectional drawing which shows schematically the internal structure of a clothes dryer. It is a rear view which shows roughly the internal structure of a clothes dryer. It is a perspective view of a filter unit. It is an expanded view of a lint filter. It is a principal part expanded sectional view of a clothes dryer. It is a principal part expanded sectional view of the clothes dryer which concerns on 2nd Embodiment. It is a perspective view which shows the state which attached the cover body to the filter unit of the clothes dryer which concerns on 2nd Embodiment.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the drum type washing and drying machine (hereinafter referred to as a washing machine) of the present embodiment has an outer shape composed of a substantially rectangular box-shaped outer box 1 and a base plate 2 provided at the lower part thereof. ing. The front portion 1a of the outer box 1 has an upwardly inclined shape, and a laundry doorway 3 including a circular opening is formed at a substantially central portion thereof. A door 4 is provided on the front surface 1a of the outer box 1 so as to be able to turn in the horizontal direction via a hinge, and the laundry entrance 3 is opened and closed by the door 4. An operation display panel 6 for setting various operations of the washing machine and displaying the operation status is provided above the laundry entrance / exit 3 on the front surface 1a, and a drawer type detergent is placed on the side of the operation display panel 6. Case 7 is provided.

  As shown in FIG. 2, a substantially cylindrical water tank 8 having an open front surface and a closed rear surface is disposed in the outer box 1. The aquarium 8 is elastically supported on the base plate 2 in such a manner that the axial direction of the aquarium 8 is a horizontal axis in the front-rear direction and is slightly inclined rearward so that the front opening communicates with the laundry entrance 3. It is elastically supported through the mechanism. The aquarium 8 is supplied with water such as tap water from the outside of a water supply port provided at the upper part of the aquarium 8 through a water supply valve and from the drain port provided at the bottom of the aquarium 8 through the drainage valve. It is configured to drain the water inside the machine. In addition to the front opening, water supply port, and drainage port, the water tank 8 is provided with an intake port 10 on the upper surface of the front portion and an exhaust port 11 on the upper portion of the rear surface of the rear portion.

  A cylindrical rotating drum 14 whose front surface is open and whose rear surface is closed is rotatably disposed in the water tank 8. The rotary drum 14 is disposed in the water tank 8 in a state where the axial direction is a horizontal axis in the front-rear direction and is slightly inclined downward. A number of holes 15 through which water and air can be passed are formed in the peripheral wall of the rotating drum 14, and the inside of the rotating drum 14 communicates with the water tank 8 through the holes 15. The front opening of the rotating drum 14 is also communicated with the laundry entrance 3, and the rotating drum 14 accommodates the laundry put in from the laundry entrance 3. The rotating drum 14 is rotationally driven by a drum motor 17 provided on the back surface of the water tank 8. The rotating drum 14 having such a configuration functions as a washing tub during a washing stroke, as a dehydrating tub during a dehydration stroke, and as a drying tub during a drying operation.

  As shown in FIGS. 2 and 3, a circulation air passage 20 is connected to the intake port 10 and the exhaust port 11 provided in the water tank 8, and the water tank 8 (rotary drum 14) is connected through the circulation air passage 20. The air inside can be circulated. The circulation air passage 20 includes a return air duct 24 connected to the air inlet 10 of the water tank 8, an air supply duct 30 connected to the air outlet 11 of the water tank 8, an end of the return air duct 24, and the air supply duct 30. The heat exchange duct 22 which connects the edge part of this is provided.

  The return air duct 24 includes an upper duct 23 disposed above the water tank 8 and a lower duct 25 that is bent downward from the rear end of the upper duct 23 and disposed at the rear part of the water tank 8. A flexible joint 26 connected to the air inlet 10, a filter storage portion 27 connected to the downstream side of the flexible joint 26, and a rear extension 28 extending rearward from the filter storage portion 27 are provided.

  The flexible joint 26 is connected to the intake port 10, extends upward from the intake port 10, then bends and extends substantially rearwardly. The end portion is connected to a connection port 27 a provided on the front wall of the filter storage portion 27.

  The filter storage portion 27 has a rectangular tube shape opened on the upper surface, and communicates with the opening portion 1c provided on the top plate portion 1b of the outer box 1 in the vertical direction. A filter unit 50 (to be described later) is accommodated in the filter accommodating portion 27 from above through the opening 1c. An opening 1c provided in the top plate 1b of the outer box 1 is closed by a lid 1d that can be opened and closed. At least a part of the lid 1d constitutes a see-through window 1e made of a transparent plate, and the filter unit 50 housed in the filter housing portion 27 is visually recognized from the outside of the outer box 1 through the see-through window 1e. can do.

  One end of the rear extension 28 is connected to the bottom surface and the rear surface of the filter storage portion 27, and the other end is connected to the upper end portion of the lower duct 25 disposed at the rear portion of the water tank 8, and has passed through the filter storage portion 27. The air flows into the lower duct 25 after entering the rear extension 28 from the bottom surface and the rear surface of the filter housing portion 27.

  The heat exchange duct 22 is placed on the base plate 2 positioned below the water tank 8, and is disposed inside the evaporator 34 and spaced from the evaporator 34 to the downstream side of the heat exchange duct 22. A condenser 35 and a blower 36 that circulates and supplies the air in the water tank 8 through the circulation air passage 20 are disposed.

  The evaporator 34 and the condenser 35 are tube-shaped with fins in which a large number of heat transfer fins are arranged at a predetermined pitch on the refrigerant distribution pipe, and the air in the water tank 8 is blown by the blower action of the blower 36. As shown by the arrows, the air flows through the circulation air passage 20 and flows between the heat transfer fins of the evaporator 34 and the condenser 35.

  The evaporator 34 and the condenser 35 constitute a heat pump 39 together with a compressor 37 that compresses the refrigerant supplied to the condenser 35 and a decompression means 38 that includes a flow rate control valve that decompresses the refrigerant discharged from the condenser 35. As the refrigerant circulates in the heat pump 39 by the operation of the machine 37, the evaporator 34 cools and dehumidifies the air flowing in the heat exchange duct 22, and the condenser 35 heats the air dehumidified by the evaporator 34. The compressor 37 and the decompression means 38 are disposed outside the heat exchange duct 22.

  In the washing machine having such a configuration, the filter unit 50 housed in the filter housing portion 27 of the upper duct 23 is composed of a pair of left and right side walls arranged in parallel with a space therebetween as shown in FIGS. 52, a plurality of roller shafts 54 that are rotatably provided with respect to the pair of side walls 52, a receiving tray 56 that opens upward to connect the opposing surfaces of the pair of side walls 52, and the roller shaft 54 The delivered lint filter 58, cleaning means 60a and 60b for cleaning the lint filter 58, and a drive mechanism 62 for moving the lint filter 58 are provided.

  The lint filter 58 has a planar shape as shown in FIG. 5, is stretched around the plurality of roller shafts 54, and is connected to both ends in the longitudinal direction so as to be annular. More specifically, the lint filter 58 includes a pair of belt portions 64 provided at the left and right side edge portions, a planar filter portion 66 that connects the pair of belt portions 64, and a filter portion in the longitudinal direction of the belt portion 64. A hole portion 68 that divides 66 and a brush portion 72 in which a bristle bundle extends laterally from the side surface of the belt portion 64, and both end portions in the longitudinal direction of the belt portion 64 are connected by a connecting portion 70 and provided in an annular shape. .

  In this example, as shown in FIG. 6, the lint filter 58 is stretched over the roller shaft 54 in a stepped shape with the front portion recessed downward, and is provided on the front wall of the filter storage portion 27 at the front upper portion of the lint filter 58. An introduction space H is formed opposite the connection port 27a, and the lint filter 58 is close to the front wall lower portion 27b of the filter storage portion 27 located below the connection port 27a.

  The front wall lower portion 27b of the filter storage portion 27 is provided with a position detection sensor 74 that detects that the connecting portion 70 that connects both ends of the lint filter 58 passes near the front wall lower portion 27b. As the position detection sensor 74, for example, a proximity sensor that detects a magnetic field of a magnetic body provided in the connecting portion 70 can be used.

  Further, both end portions of the belt portion 64 in the longitudinal direction protrude from the filter portion 66, and the lint filter 58 connected in a ring shape by the connecting portion 70 is a hole portion that divides the filter portion 66 at the position of the connecting portion 70. 68 is formed. In other words, two holes 68 are formed in the annular lint filter 58.

  The brush portion 72 provided on the side surface of the belt portion 64 facing the pair of side walls 52 is slidably contacted with the pair of side walls 52 in a state of being stretched over the roller shaft 54 and closes the gap between the side walls 52 and the belt portion 64. Yes.

  At least one of the roller shafts 54 is connected to a drive mechanism 62 having a motor provided in the vicinity of the filter housing portion 27 when the filter unit 50 is housed in the filter housing portion 27, and receives power from the drive mechanism 62 and rotates. (See FIG. 6). When the roller shaft 54 rotates, the lint filter 58 moves in the longitudinal direction by the frictional force between the roller shaft 54 and the belt portion 64 of the lint filter 58 and circulates around the plurality of roller shafts 54.

  The tray 56 includes front and rear walls 57a and 57b that connect the pair of side walls 52 and a bottom surface 57c. The tray 56 is disposed inside (below) the lint filter 58 at the rear of the introduction space H, and the lint filter 58 that circulates and moves is the tray 56. It passes through the upper surface opening of the.

  A pair of front and rear partition walls 1f and 1g projecting downward toward the upper surfaces of the front and rear walls 57a and 57b of the tray 56 are provided on the lower surface of the lid 1d that closes the opening 1c of the filter storage portion 27. The lower surfaces of the front and rear partition walls 1f and 1g are opposed to the upper surfaces of the front and rear walls 57a and 57b of the tray 56, leaving an interval through which the lint filter 58 passes, and the front and rear walls 57a and 57b of the tray 56 and the lid 1d. A cleaning space S for collecting lint captured by the filter portion 66 of the lint filter 58 is formed by the partition walls 1f and 1g. Above the cleaning space S, the above-described see-through window 1e is provided, and the inside of the cleaning space S can be visually recognized from the outside in a state where the filter housing portion 27 is closed by the lid 1d.

  A pair of upper and lower cleaning means 60a and 60b are provided on the bottom surface 57c of the tray 56 and the lower surface of the lid 1d at positions facing vertically. Specifically, the upper and lower cleaning means 60a and 60b are both constituted by brushes, and are moved toward the downstream side in the moving direction of the lint filter 58 (in the present embodiment, moved toward the rear wall 57b and the partition wall 1g). It is provided in the cleaning space S. The lower cleaning means 60a provided on the bottom surface 57c of the tray 56 is in sliding contact with the lower surface of the lint filter 58, and the upper cleaning means 60b provided on the lower surface of the lid 1d is in sliding contact with the upper surface of the lint filter 58. In the cleaning space S, the upper and lower cleaning means 60a and 60b sandwich the lint filter 58 from above and below so as to be able to circulate.

  The washing machine of the present embodiment is provided with a control device (not shown) provided with a microcomputer, and this control device is used for an input signal of the operation display panel 6, a position detection sensor 74, and a control program provided in advance. Based on this, a washing operation, a drying operation, and a lint collection operation are executed by controlling a water supply valve and a drain valve (not shown), a drum motor 17, a blower 36, a compressor 37, a drive mechanism 62, and the like.

  Next, an example of operation | movement of the washing machine of the said structure is demonstrated.

  First, a schematic operation of the washing machine will be described. When the user operates the operation button on the operation display panel 6 to set a course of operation and is instructed to start driving, the washing machine performs a washing operation, a drying operation, or its operation according to the set course of operation. A washing / drying operation is performed in which both operations are continued. Here, a description of the washing operation and the washing and drying operation is omitted, and the drying operation and the lint collection operation are described.

  In the drying operation, the drum motor 17 is operated, and the operation of supplying warm air into the rotating drum 14 is performed while rotating the rotating drum 14 containing damp clothing in both forward and reverse directions.

  The operation of supplying warm air into the rotary drum 14 is performed by driving the blower 36 and driving the compressor 37 to operate the heat pump 39. Specifically, when the compressor 37 is driven, the refrigerant sealed in the heat pump 39 is compressed to become a high-temperature and high-pressure refrigerant, and the high-temperature and high-pressure refrigerant flows into the condenser 35 and the air in the heat exchange duct 22 Exchange heat with. As a result, the air in the heat exchange duct 22 is heated, and the refrigerant is cooled and liquefied. The liquefied refrigerant is then depressurized through the depressurizing means 38 and then flows into the evaporator 34 and vaporizes, whereby the evaporator 34 cools the air in the heat exchange duct 22. The refrigerant that has passed through the evaporator 34 returns to the compressor 37 and is compressed again to become a high-temperature and high-pressure refrigerant.

  Due to the operation of the heat pump 39 and the blower 36 described above, the air that has entered the rotating drum 14 from the water tank 8 becomes moisture-containing by drying the clothes, and this moist air is returned from the air inlet 10 to the return air duct. After flowing into the heat exchange duct 22 through 24, it is cooled and dehumidified by the evaporator 34, and then heated by the condenser 35 and warmed.

  The warm air heated by the condenser 35 is supplied from the exhaust port 11 into the water tank 8 through the air supply duct 30, and is further supplied from the hole 15 into the rotary drum 14. The hot air supplied into the rotary drum 14 circulates so as to flow into the heat exchange duct 22 from the air inlet 10 through the return air duct 24 after drying the clothes by removing moisture from the clothes.

  When the warm air circulating in the water tank 8 and the circulation air path 20 flows through the upper duct 23 of the return air duct 24 from the intake port 10 during the drying operation, the warm air circulates the lint filter 58 of the filter unit 50 housed in the filter housing portion 27. pass.

  Specifically, the air sucked into the flexible joint 26 of the return air duct 24 from the intake port 10 flows into the introduction space H of the filter housing portion 27 from the connection port 27a, and constitutes the back surface and the bottom surface of the introduction space H. The filter passes through the upstream portion 66a of the filter portion 66 of the lint filter 58 and enters the inside of the annular lint filter 58, and passes through the downstream portion 66b of the filter portion 66 constituting the bottom surface and the back surface of the filter unit 50. It flows into the rear extension 28 provided behind the storage 27. In this way, air passes through the lint filter 58 of the filter unit 50 while circulating in the water tank 8 and the circulation air passage 20 during the drying operation, so that lint generated from the laundry in the drying operation is passed to the filter unit 66 of the lint filter 58. And capture.

  During the drying operation, the lint filter 58 of the filter unit 50 housed in the filter housing portion 27 has one of the two holes 68 disposed in the cleaning space S, and the other hole 68 is disposed in the filter housing portion 27. It is arrange | positioned in the position facing the front wall lower part 27b.

  When the drying operation ends, the washing machine rotates the roller shaft 54 by the operation of the drive mechanism 62 and executes the lint collection operation. In this lint collection operation, the annular lint filter 58 moves so as to circulate around the plurality of roller shafts 54 as the roller shaft 54 rotates, and the bottom surface of the tray 56 of the filter unit 50 and the lid 1d. It moves with respect to the cleaning means 60a, 60b provided in the. Since the cleaning means 60a and 60b are in sliding contact with the upper and lower surfaces of the filter portion 66 of the lint filter 58, the lint filter 58 moves with respect to the cleaning means 60a and 60b. Cleaning means 60a, 60b scrapes and collects the captured lint. The lint scraped off from the lower surface of the filter portion 66 by the cleaning means 60a provided on the tray 56 of the filter unit 50 falls to the tray 56 and accumulates to some extent. In addition, the lint scraped off from the upper surface of the filter unit 66 by the cleaning unit 60b provided on the lower surface of the lid 1d is accumulated on the upstream side of the cleaning unit 60b on the upper surface of the filter unit 66, and the hole 68 of the lint filter 58 is formed. When passing below the cleaning means 60b, it passes through the hole 68 and falls into the tray 56 and accumulates.

  Then, the lint filter 58 goes around the plurality of roller shafts 54, and one hole 68 provided in the lint filter 58 returns into the cleaning space S, and the other hole 68 is located in front of the filter storage portion 27. When returning to the position facing the wall lower portion 27b, the position detection sensor 74 provided on the front wall lower portion 27b of the filter storage portion 27 detects the connecting portion 70 that connects both ends of the lint filter 58, and the drive mechanism 62 is moved. Stop the lint recovery operation.

  In the washing machine of the present embodiment, since the lint captured by the filter portion 66 of the lint filter 58 is scraped off by the cleaning means 60a and 60b, the lint filter 58 can be prevented from being clogged and a decrease in drying performance can be suppressed. it can. Moreover, the lint collected by the cleaning means 60a, 60b is accumulated in the tray 56 and can be easily removed.

  In the present embodiment, since both ends of the planar lint filter 58 are connected to each other by the connecting portion 70 and provided in an annular shape, the lint filter 58 is easy to manufacture. In addition, since the position detection sensor 74 detects the connecting portion 70, the position of the lint filter 58 in the moving direction can be detected, so that the lint filter 58 can be stopped at a desired position.

  In the present embodiment, the lid 1d is provided with a see-through window 1e, and the inside of the cleaning space S can be visually recognized from the outside in a state where the filter housing portion 27 is closed with the lid 1d. The lint collected by the cleaning means 60a, 60b can be visually recognized without opening, and the user can be prevented from forgetting to remove the lint collected by the cleaning means 60a, 60b.

  In the present embodiment, the case where the lint recovery operation is performed after the drying operation has been described.For example, the lint recovery operation is performed in response to the drying operation such as when the next washing machine is started or before the next drying operation is performed. The lint collection operation may be performed each time. For example, the lint collection operation is performed when the operation button 6a (see FIG. 1) provided on the operation display panel 6 is operated by the user and the lint collection operation is set. May be. By performing the lint collection operation each time in correspondence with the drying operation, the drying operation can be performed with the lint filter 58 always being cleaned, and the decrease in the drying performance can be more reliably suppressed. Further, the lint collection operation can be executed according to the state of lint adhesion to the lint filter 58 by performing the lint collection operation in response to the operation of the operation button 6a by the user.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS.

  This embodiment is different from the first embodiment described above in that the lint filter 58 of the filter unit 50 housed in the filter housing portion 27 is circulated and moved by the rotation of the rotating portion 76 that is rotated by the user. Has the same configuration as that of the first embodiment. Only the differences from the first embodiment will be described below.

  The rotating part 76 is composed of a pair of left and right disc-shaped rollers. The rotating part 76 penetrates the lid 1d, the upper part projects upward from the lid 1d, and the lower part is stored in the cleaning space S. The lower end portion of the rotating portion 76 is in contact with the upper surface of the belt portion 64 of the lint filter 58 and sandwiches the belt portion 64 vertically with the lower support 78 provided on the tray 56. The pair of rotating portions 76 are connected by a rotating shaft 82 that is rotatably held by a bearing provided on the lower surface of the lid 1d.

  In the present embodiment, when the user rotates the rotating unit 76, the lint filter 58 moves in the longitudinal direction by the frictional force between the rotating unit 76 and the belt unit 64 of the lint filter 58, and moves around the plurality of roller shafts 54. It moves cyclically. When the lint filter 58 makes a round around the plurality of roller shafts 54, the user stops the rotation of the rotating portion 76 and ends the lint collection process. In this embodiment, electrical components such as a motor and a position detection sensor for moving the lint filter 58 are not required, the structure can be simplified, and the manufacturing cost can be reduced. Other configurations and operational effects are the same as those of the first embodiment, and detailed description thereof is omitted.

  As mentioned above, although embodiment of this invention was described, these embodiment was shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

  In the drawings, 1c is an opening, 1d is a lid, 1e is a see-through window, 8 is a water tank, 10 is an air inlet, 11 is an air outlet, 14 is a rotating drum, 20 is a circulating air passage, 22 is a heat exchange duct, 23 Is an upper duct, 24 is a return duct, 25 is a lower duct, 26 is a flexible joint, 27 is a filter housing part, 27a is a connection port, 27b is a lower part of the front wall, 34 is an evaporator, 35 is a condenser, 36 Is a blower, 37 is a compressor, 38 is a pressure reducing means, 39 is a heat pump, 50 is a filter unit, 52 is a side wall, 54 is a roller shaft, 56 is a tray, 58 is a lint filter, 60a and 60b are cleaning means, and 62 is a drive The mechanism, 64 is a belt part, 66 is a filter part, 68 is a hole part, 70 is a connecting part, 72 is a brush part, and 74 is a position detection sensor.

Claims (9)

A drying chamber for storing clothes inside,
A circulation air passage connecting an intake port and an exhaust port provided in the drying chamber;
Air blowing means for circulating the air in the drying chamber through the circulation air passage;
Dehumidifying means for dehumidifying the air flowing in the circulation air passage;
Heating means for heating the air in the circulation air passage;
A planar lint filter for capturing lint flowing in the circulation air passage;
A cleaning means for cleaning the lint filter;
A drum-type washing and drying machine comprising: a drive mechanism that moves the lint filter relative to the cleaning means so that the cleaning means collects lint captured by the lint filter. The lint filter is provided in an annular shape connected in the moving direction by the drive mechanism,
2. The drum type washing and drying machine according to claim 1, wherein the cleaning unit includes a brush that is in sliding contact with the lint filter, and the lint filter scrapes off lint captured by the lint filter by movement of the lint filter. .   The drum type washing and drying machine according to claim 2, wherein the drive mechanism includes a motor, and the lint filter is moved by power of the motor.   The drum type washing and drying machine according to claim 3, wherein the lint filter is moved by driving the motor each time a drying operation for operating the dehumidifying unit, the heating unit, and the blowing unit is executed.   The drum type washing and drying machine according to claim 3, wherein when an instruction is input from an operation unit, the lint filter is moved by driving the motor.   The drum-type washing and drying machine according to claim 2, wherein the driving mechanism includes a rotating unit that is rotated by a user, and the lint filter is moved by the rotation of the rotating unit.   The connecting part which joins the both ends of a planar filter and forms an annular lint filter, and the detection part which detects the said connecting part are provided, The detection part of any one of Claims 2-5 characterized by the above-mentioned. Drum type washing and drying machine. A tray that is disposed below the cleaning means and receives the lint collected by the cleaning means;
The drum type washing and drying machine according to any one of claims 2 to 7, wherein the lint filter includes the hole portion that discharges lint collected from an upper surface of the lint filter to the tray.   The drum type laundry dryer according to any one of claims 1 to 8, further comprising a see-through window for visually recognizing the lint collected by the cleaning means.

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