JP2015167694A - dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dryer which has simple configuration and includes a function of cleaning a filter part and whose drying performance and maintainability therefore can be improved.SOLUTION: The dryer includes a filter device (30) arranged in a circulation pathway in which air circulates by a circulation fan. The filter device (30) includes: a filter mounting part (32); a cylindrical filter part (33) which is mounted on the filter mounting part (32) in a rotatable manner and in which air flows from an outer peripheral side toward an inner peripheral side; a filter part drive mechanism for rotationally driving the filter part (33); and a dust removal part (50) provided at the filter mounting part (32) and for removing dust attached to an outer peripheral surface of the filter part (33) which rotates by the filter part drive mechanism.

Description

  The present invention relates to a dryer.

  Conventionally, as a dryer, in a drying operation in which air in a washing tub containing clothes is circulated through a heating means, there is a laundry dryer that captures dust such as lint contained in the circulating air with a filter. .

  In such a conventional washer-dryer, dust accumulated on the filter deteriorates the drying performance, and thus the user has to frequently clean the filter.

  Therefore, as a washing and drying machine having a function of automatically cleaning the filter, by driving the air blowing means with the air passage switching means facing the filter on the upstream side and facing the outlet side of the drying chamber, After capturing lint (dust such as lint) in the air flowing in the circulation path with the capture surface of the filter, with the air path switching means facing the recovery air path side with the filter capture surface downstream, There is one that collects lint captured on the capture surface of the filter by driving the air blowing means and automatically cleans the filter (see, for example, Japanese Patent Laid-Open No. 2012-170626 (Patent Document 1)).

JP 2012-170626 A

  However, the washing and drying machine having a function of automatically cleaning the filter has a problem that the structure is complicated and the cost is increased. In addition, such a dryer has a problem in that maintenance is poor because the collected dust must be taken out separately from the filter.

  Therefore, an object of the present invention is to provide a dryer that can improve drying performance and maintainability by providing a function of cleaning a filter portion with a simple structure.

In order to solve the above problems, the dryer of the present invention is:
A storage tank for storing a dry object;
A circulation path for circulating the air in the storage tank;
A heating device for drying the object to be dried in the storage tank;
A circulation fan for circulating the air in the storage tank through the heating device;
A filter device disposed in the circulation path through which air is circulated by the circulation fan;
A heating device and a control device for controlling the circulation fan;
The filter device is
A filter mounting portion;
A cylindrical or conical or truncated cone shaped filter part that is rotatably attached to the filter attaching part, and air flows from the outer peripheral side toward the inner peripheral side,
A filter unit driving mechanism for rotationally driving the filter unit;
And a dust removing unit that removes dust attached to the outer peripheral surface of the filter unit that is provided in the filter mounting unit and is rotated by the filter unit driving mechanism.

In one embodiment of the dryer,
The dust removing unit includes at least an elastic member that is elastically deformed by being partially pressed against the outer peripheral surface of the filter unit.

In one embodiment of the dryer,
The dust removing unit has a plurality of spatulas extending in the rotation direction along the outer periphery of the filter unit,
At least one of the plurality of spatulas is different in length from the other spatula.

In one embodiment of the dryer,
The filter device is
A dust storage unit configured to store the dust removed from the outer peripheral surface of the filter unit by the dust removal unit;

In one embodiment of the dryer,
The dust container has a box shape with an opening on the upper side,
A lid that pivots to open and close the opening of the dust container;
A lid driving mechanism for opening and closing the lid.

In one embodiment of the dryer,
A lid opening / closing sensor for detecting opening / closing of the lid;
Even if the lid driving mechanism is driven to close the lid from a state where the lid is open, the dust container detects that the dust container remains in the opened state by the lid opening / closing sensor. And an informing unit for informing that it is full.

In one embodiment of the dryer,
A clogging detection unit that detects whether or not the filter unit of the filter device is clogged during a drying operation in which the air in the storage tank is circulated through the heating device by the circulation fan,
When the clogging detection unit detects clogging of the filter unit, the control device controls the circulation fan to lower the rotation speed of the circulation fan from the current rotation number,
The filter unit of the filter device is rotated by the filter unit driving mechanism, and dust adhering to the outer peripheral surface of the filter unit is removed by the dust removing unit.

In one embodiment of the dryer,
An outer box in which the storage tank is disposed;
A filter device storage section provided in the outer box, in which the filter device is detachably stored;
The filter device has a sub-filter part provided in the filter mounting part so as to be located downstream of the filter part.

  As is clear from the above, according to the present invention, after the drying operation is completed, the filter unit is driven to rotate by the filter unit driving mechanism, and the dust attached to the outer peripheral surface of the rotating filter unit is removed by the dust removing unit. By doing so, the filter part can be cleaned with a simple structure, and a dryer capable of improving the drying performance and maintainability can be realized.

FIG. 1 is a perspective view showing the appearance of a washing / drying machine as an example of the drying machine according to the first embodiment of the present invention. FIG. 2 is a diagram schematically showing a schematic configuration relating to the drying function of the washing dryer. FIG. 3 is a control block diagram of the washing / drying machine. FIG. 4 is a perspective view of the main part of the washing / drying machine with the outer box removed, as viewed from the diagonally upper side. FIG. 5 is a schematic view of a cross section seen from the side of the washing and drying machine. FIG. 6 is a perspective view of the filter device of the washer / dryer as viewed obliquely from above. FIG. 7 is a plan view of the dust removing portion of the filter device of the washer / dryer. FIG. 8 is a top view of the filter device. FIG. 9 is a side view of the filter device as viewed from the upstream side. FIG. 10 is a side view of the filter device. FIG. 11 is a perspective view of a filter device housing portion to which the filter device is mounted. FIG. 12 is a perspective view of a filter device housing portion to which the filter device is mounted. FIG. 13 is a perspective view of a state in which a part of the side wall of the filter device housing portion to which the filter device is mounted is omitted. 14 is a longitudinal sectional view taken along line XIV-XIV in FIG. FIG. 15A is a diagram for explaining an automatic cleaning operation for removing dust trapped on the outer peripheral surface of the filter portion of the filter device. FIG. 15B is a diagram following FIG. 15A. FIG. 15C is a diagram subsequent to FIG. 15B. FIG. 15D is a diagram following FIG. 15C. FIG. 15E is a diagram following FIG. 15D. FIG. 15F is a diagram subsequent to FIG. 15E. FIG. 16 is a control block diagram of a laundry dryer as an example of a dryer according to the third embodiment of the present invention.

  Hereinafter, the dryer of this invention is demonstrated in detail by embodiment of illustration.

[First Embodiment]
FIG. 1 is a perspective view showing the appearance of a washing / drying machine as an example of the drying machine according to the first embodiment of the present invention.

  As shown in FIG. 1, the washing / drying machine according to the first embodiment selects an operation operation on the front of the outer box 1 and inputs an instruction and displays an operation state, a washing tub 2, and a rotation. And a door 21 for opening and closing an opening of the drum 3 (shown in FIG. 2). In FIG. 1, 30 is a filter device.

  Moreover, FIG. 2 is a figure which shows typically schematic structure regarding the drying function of the said washing-drying machine.

  As shown in FIG. 2, the washing and drying machine includes an outer box 1, a washing tub 2 as an example of a storage tub disposed in the outer box 1, and a front side of the horizontal direction in the washing tub 2. A rotary drum 3 that is rotatably arranged around a central axis J that forms an upward inclination angle, and that stores a drying object 5 such as clothing, and a rotary drum that rotates the rotary drum 3 around the central axis J A drive motor 4 is provided. The washing tub 2 and the rotating drum 3 are open on the door 21 side, and the drying object 5 can be taken in and out of the rotating drum 3 by opening the door 21. Moreover, by closing the door 21, the washing tub 2 is kept watertight and airtight. The central axis J may be substantially parallel to the horizontal direction.

  In addition, a filter device storage portion 40 in which the filter device 30 is detachably stored is disposed at the upper part on the back side of the outer box 1. As an example of the exhaust port 40b of the filter device storage unit 40 and the heating device, the intake port 40a of the filter device storage unit 40 and the exhaust port 22 of the washing tub 2 are connected via the first air circulation duct 23. The heat pump unit 13 is connected via a second air circulation duct 24. The heat pump unit 13 is disposed in the lower part on the back side of the outer box 1. In addition, an air duct 26 is connected between the heat pump unit 13 and the air inlet 25 of the washing tub 2. The circulation fan 11 is disposed on the heat pump unit 13 side of the air duct 26.

  The first air circulation duct 23, the filter device housing portion 40, the second air circulation duct 24 and the air duct 26 form a circulation path for circulating the air in the washing tub 2.

  The rotating drum 3 is formed with a plurality of through holes (not shown) that allow water and air to flow between the peripheral surface 3A and the inside of the washing tub 2. A plurality of air introduction holes (not shown) communicating with the air inlet 25 of the washing tub 2 are formed on the bottom surface 3 </ b> B of the rotating drum 3. Thereby, the dried heated air supplied from the heat pump unit 13 through the air duct 26 can be introduced into the rotary drum 3 from the air inlet 25 as indicated by an arrow Y in FIG.

  Further, the heated air that has taken away moisture from the drying object 5 such as clothes accommodated in the rotating drum 3 becomes moisture-absorbing air. This hygroscopic air passes through the through hole in the peripheral surface 3A of the rotating drum 3 into the washing tub 2 as indicated by an arrow Z in FIG. 2, and is filtered from the exhaust port 22 of the washing tub 2 through the first air circulation duct 23. The air is exhausted toward the device storage portion 40, and is introduced from the filter device storage portion 40 through the second air circulation duct 24 into the heat pump unit 13.

  The heat pump unit 13 includes an evaporator 10, a compressor 7, a condenser 8, and an expansion valve 9. The evaporator 10, the compressor 7, the condenser 8 and the expansion valve 9 are connected by a refrigerant pipe 14 to form a refrigerant circuit, and the refrigerant compressed by the compressor 7 is supplied to the condenser 8, the expansion valve 9, and the evaporator 10. It flows in order. Further, a temperature sensor 16 or the like as a state detection unit is attached to the refrigerant pipe 14 on the discharge side of the compressor 7. A control device 100 constituted by a control computer or the like can control the capacity of the compressor 7 in accordance with the refrigerant temperature measured by the temperature sensor 16. Further, the control device 100 controls the expansion valve 9 as necessary.

  In the washing / drying machine having the above-described configuration, when selection of a driving course, time setting of each process, or the like is input from the operation display unit 20 (shown in FIG. 1), the control device 100 to which the selection information or setting information is input. From washing to drying, a series of operations are executed or only a drying operation is executed.

  In the drying operation, the rotary drum 3 is rotated by the rotary drum drive motor 4 at a rotation speed corresponding to the drying operation to stir the drying object 5 such as clothes, and the heat pump unit 13 and the circulation fan 11 are driven. Circulation of drying air is started.

  At this time, in the heat pump unit 13, the refrigerant is compressed by the compressor 7 shown in FIG. 2, and this refrigerant passes through the refrigerant pipe 14 from the compressor 7, the condenser 8, the expansion valve (throttle means) 9, the evaporator 10, The compressor 7 is circulated in order. Since the heat of the compressed refrigerant flows into the condenser 8 and is radiated to the air in contact with the fins 8B provided in the refrigerant pipe 8A provided in the condenser 8, it becomes heated air. Then, the air is supplied from the circulation fan 11 through the air duct 26 into the rotary drum 3 through the air inlet 25.

  As a result, the heated air becomes moisture-absorbing air deprived of moisture from the drying object 5 such as clothes agitated in the rotary drum 3 and is discharged from the exhaust port 22 to the first air circulation duct 23.

  The hygroscopic air blown to the first air circulation duct 23 enters the space in the heat pump unit 13 from the intake port of the heat pump unit 13 through the filter device housing 40 and the second air circulation duct 24, and the fins of the evaporator 10. When passing through 10B, heat is taken away and dehumidified. In the evaporator 10, the refrigerant that has been decompressed by the expansion valve 9 to a low pressure flows through the refrigerant pipe 10A.

  And the dew condensation water produced by dehumidification by the evaporator 10 is dripped at the water storage part which is not shown in figure, and the dehumidified and dried air enters the condenser 8 and is heated again. The water stored in the water storage section is discharged into the washing tub 2 when the drain pump is operated at regular intervals, and is drained to the outside through the drain pipe by opening the drain valve. Is done.

  The structure of the drying function of the heat pump system that heats and dehumidifies the drying air by the heat pump unit 13 collects the heat absorbed by the evaporator 10 with the refrigerant and dissipates it again from the condenser 8, so the energy input to the compressor 7 The amount of heat described above can be given to the drying object 5 such as clothing, and it is possible to realize a reduction in drying time and energy saving.

  Here, during the drying operation, dust introduced into the first air circulation duct 23 from the rotary drum 3 contains dust such as lint of clothes, so the first air circulation duct 23 and the second air circulation A filter device 30 that captures dust such as lint is accommodated in the filter device accommodating portion 40 between the duct 24 and the duct 24. The filter device 30 prevents dust such as lint from entering the heat pump unit 13 through the second air circulation duct 24.

  FIG. 3 is a control block diagram of the washing / drying machine. This washing / drying machine includes a control device 100 including a microcomputer and an input / output circuit. This control device 100 is based on signals from the operation unit 20a of the operation display unit 20, the temperature sensor 16 and the lid opening / closing sensor 70, the rotary drum drive motor 4, the circulation fan 11, the heat pump unit 13, and the operation display. The display unit 20b, the water supply valve 41, the drain valve 42, the filter unit drive motor 63, the lid opening / closing drive motor 64, and the like are controlled. The lid opening / closing sensor 70 uses a micro switch.

  FIG. 4 shows a perspective view of the main part of the washer / dryer with the outer box 1 (shown in FIGS. 1 and 2) removed, as viewed obliquely from above. FIG. 5 shows a schematic view of a cross section viewed from the side of the washing / drying machine. 4 and 5, the same components as those shown in FIG. 2 are denoted by the same reference numerals.

  As shown in FIGS. 4 and 5, a filter device storage portion 40 is attached to the upper part of the washing tub 2 in which the rotary drum 3 is stored. The filter device 30 is detachably attached to the filter device storage portion 40 from above. Further, the exhaust port 22 of the washing tub 2 and the intake port 40 a (shown in FIG. 2) of the filter device housing 40 are connected via the first air circulation duct 23. Further, the upper end of the second air circulation duct 24 is connected to the exhaust port 40b (shown in FIG. 2) of the filter device housing 40, and the lower end of the second air circulation duct 24 is connected to the intake port of the heat pump unit 13. Yes. Further, the lower end of the air duct 26 is connected to the outlet of the circulation fan 11 attached to the exhaust side of the heat pump unit 13, and the upper end of the air duct 26 is connected to the air inlet 25 (shown in FIG. 2) on the back surface of the washing tub 2. Connected.

  Next, the filter device 30 attached to the filter device storage unit 40 will be described.

  FIG. 6 shows a perspective view of the filter device 30 of the washer-dryer as viewed obliquely from above.

  As shown in FIG. 6, the filter device 30 includes a substantially rectangular handle portion 31 having a handle opening 31 a, a side wall portion 32 a extending downward from one of the long sides of the handle portion 31 and from the lower side. The filter attachment part 32 which consists of the box-shaped base part 32b provided in the lower part of the part 31 and the circular hole 60 (shown in FIG. 14) provided in the side wall part 32a of the filter attachment part 32 were rotatably attached. A cylindrical filter portion 33, an arm portion 34 that rotatably supports the side of the filter portion 33 opposite to the side wall portion 32a, a lower end side of the arm portion 34 (below the second arm portion 34c), and a filter mounting portion 32, a dust container 35 provided between the side wall 32a and the upper side of the dust container 35, and a dust removing part 50 provided above the dust container 35 and below the base 32b of the filter mounting part 32. An opening / closing door 37 is attached to the handle opening 31a of the handle portion 31 so as to be opened and closed. The open / close door 37 opens inward and is biased to a closed state by a spring member (not shown).

  The cylindrical filter portion 33 includes a side plate 33a that covers the end opposite to the filter mounting portion 32, a shaft portion 33b that is provided at the center of the side plate 33a, and a mesh that is provided so as to cover the cylindrical surface. The filter 33c is provided. The end of the cylindrical filter portion 33 on the filter attachment portion 32 side is open. The filter device 30 is configured such that air flows from the outer peripheral side of the filter portion 33 toward the inner peripheral side via the filter 33c (see FIG. 14).

  The arm portion 34 is provided at a first arm portion 34a extending from the base portion 32b of the filter mounting portion 32 and a lower end of the first arm portion 34a, and a bearing that rotatably supports the shaft portion 33b of the filter portion 33. Part 34b and second arm part 34c extending obliquely downward from bearing part 34b.

  A lid 36 that opens and closes the opening on the upper side of the dust container 35 is rotatably attached. The lid 36 is rotatably supported by a rotation shaft 39. In FIG. 6, the lid 36 is in a closed state.

  In the filter device 30, a cylindrical drive motor 63 (shown in FIGS. 3 and 11) is connected to a cylindrical shape via a drive gear 65 (shown in FIG. 13) and a gear portion 61 (shown in FIGS. 9 and 10). The filter unit 33 is rotated in the direction of the arrow R1. Further, the lid opening / closing drive motor 64 (shown in FIGS. 3 and 11) rotates the rotary shaft 39 via a drive gear (not shown) and a gear portion 62 (shown in FIGS. 9 and 10) to thereby open the lid. 36 is opened and closed. Stepping motors are used for the filter drive motor 63 and the lid opening / closing drive motor 64.

  FIG. 7 is a plan view of the dust removing unit 50. As shown in FIG. 7, the dust removing unit 50 includes a plate member 51 and an elastic member 52 fixed by the plate member 51. The elastic member 52 is attached to the base portion 32 b of the filter attachment portion 32 by the plate member 51. The elastic member 52 is made of silicone resin and has a plurality of spatulas 52a to 52f extending in the rotation direction along the outer periphery of the filter portion 33 (shown in FIG. 6). Of the plurality of spatulas 52a to 52f, the spats 52a, 52c, 52d, and 52f are longer in the longitudinal direction and narrower than the spatulas 52b and 52e.

  8 shows a top view of the filter device 30, FIG. 9 shows a side view of the filter device 30 as viewed from the upstream side, and FIG. 10 shows a side view of the filter device 30. In FIG. 8, FIG. 9, and FIG. 10, the same reference numerals are assigned to the same components as those in FIG.

  8, 9, and 10, an example of the filter unit driving mechanism is provided on the outer side of the opening end of the cylindrical filter unit 33 on the side opposite to the arm unit 34 of the side wall 32 a of the filter mounting unit 32. The gear part 61 is provided. A rotating shaft 39 for opening and closing the lid 36 of the dust container 35 is rotatably attached to the dust container 35. In addition, a gear portion 62 is provided on the side opposite to the arm portion 34 of the side wall portion 32 a of the filter mounting portion 32 and on one end of the rotating shaft 39. The rotating shaft 39 and the gear portion 62 constitute a lid driving mechanism.

  In addition, spring members 38 are provided on both sides of the base portion 32b of the filter mounting portion 32. When the filter device 30 is mounted in the filter device storage portion 40 (shown in FIGS. 11 to 14), the filter device 30 is held in the filter device storage portion 40 by the spring members 38 and 38.

  11 and 12 are perspective views of the filter device housing portion 40 to which the filter device 30 is mounted.

  As shown in FIGS. 11 and 12, the filter device storage unit 40 includes a box-shaped main body 101 having an upper opening, and a cylindrical suction side provided on one side wall (upstream side) of the main body 101. It has a duct connection part 102, an exhaust duct 103 provided on the other side wall (downstream side) of the main body part 101, and a cylindrical outlet duct connection part 104 provided below the exhaust duct 103. In addition, a filter portion drive motor 63 and a lid opening / closing drive motor 64 are attached in the vicinity of the exhaust duct 103 on the other side wall (downstream side) of the main body portion 101.

  FIG. 13 is a perspective view showing a state in which a part of the side wall of the filter device housing portion 40 to which the filter device 30 is mounted is omitted. In FIG. 13, the same components as those in FIGS. Are given the same reference numbers.

  As shown in FIG. 13, the rotation of the output shaft of the filter unit drive motor 63 is transmitted to the gear unit 61 of the filter unit 33 via the drive gear 65. The rotation of the output shaft of the lid opening / closing drive motor 64 is transmitted to the gear portion 62 of the rotary shaft 39 via a drive gear (not shown) fixed to the output shaft.

  FIG. 14 is a longitudinal sectional view taken along line XIV-XIV in FIG. In FIG. 14, the same components as those in FIGS. 6 to 13 are denoted by the same reference numerals.

  As shown in FIG. 14, the air that flows in from the air inlet 40 a of the suction side duct connection portion 102 flows from the outer peripheral side of the filter portion 33 toward the inner peripheral side through the filter 33 c. And the air which passed the opening of the edge part in which the gear part 61 of the filter part 33 was provided, and the sub filter part 110 passed through the exhaust duct 103 from the exhaust port 40b of the blowing side duct connection part 104, and the 2nd air circulation duct. 24 (shown in FIGS. 2, 4 and 5).

  The sub-filter unit 110 is attached to a connection portion between the main body unit 101 and the outlet duct connecting unit 104.

  Next, an automatic cleaning operation for removing dust trapped on the outer peripheral surface of the filter unit 33 of the filter device 30 (shown in FIG. 6) will be described with reference to FIGS. 15A to 15F. 15A to 15F are views seen from the upstream side of the filter unit 33 in the axial direction.

  The washing / drying machine according to the first embodiment controls the filter unit driving motor 63 and the lid opening / closing driving motor 64 shown in FIGS. 11 and 12 by the control device 100 shown in FIG. Perform automatic cleaning operation.

  During the automatic cleaning operation, the filter unit 33 of the filter device 30 is rotated by the filter unit drive motor 63 and stopped in a mode such as a drying operation.

  First, when the automatic cleaning operation of the filter device 30 is started, the filter unit 33 is rotationally driven by the filter unit drive motor 63. As shown in FIG. 15A, when the filter part 33 with the dust 200 adhering to the outer periphery of the filter 33c is rotated in the direction of the arrow R2 by the drying operation, the elastic member 52 of the dust removing part 50 is rotated with respect to the part in contact with the filter 33c. In the region S1 on the side opposite to the direction, the dust aggregate 201 is gradually formed.

  Next, when the rotation of the filter unit 33 proceeds, the dust aggregate 202 in the region S1 increases as shown in FIG. 15B. Here, the dust 200 adhering to the outer periphery of the filter 33c of the filter unit 33 reaches the region S1 one after another, and is rounded and collected between the elastic member 52 of the dust removing unit 50 and the filter 33c.

  Further, as the rotation of the filter unit 33 proceeds, the dust aggregate 203 becomes larger in the region S2 between the elastic member 52 of the dust removing unit 50 and the filter 33c, as shown in FIG. 15C. Here, a part of the dust aggregate 203 enters between the elastic member 52 of the dust removing unit 50 and the filter 33c.

  Further, when the rotation of the filter unit 33 further proceeds, as shown in FIG. 15D, the larger dust aggregate 204 enters the region S3 between the elastic member 52 of the dust removing unit 50 and the filter 33c, A part of the dust aggregate 204 emerges downward in the rotational direction from between the elastic member 52 and the filter 33c that are elastically deformed.

  Further, when the rotation of the filter unit 33 further proceeds, as shown in FIG. 15E, most of the large and round dust aggregate 205 is elastically deformed between the elastic member 52 of the dust removing unit 50 and the filter 33c. The elastic member 52 comes out from the front end side.

  Thus, finally, as shown in FIG. 15E, a large and rounded dust aggregate 206 is placed in the dust container 35 (shown in FIG. 6) from between the elastic member 52 of the dust removing unit 50 and the filter 33c. Fall. At this time, the lid 36 on the upper side of the dust container 35 is opened.

  When a predetermined time elapses from the start of the automatic cleaning operation of the filter device 30, the rotation of the filter unit 33 is stopped, the automatic cleaning operation is terminated, and the upper cover 36 of the dust container 35 is closed.

  According to the washing dryer having the above-described configuration, the air in the washing tub 2 (storage tub) is circulated through the heat pump unit 13 (heating device) by the circulation fan 11 in the drying operation. At this time, air flows from the outer peripheral side to the inner peripheral side of the cylindrical filter unit 33 rotatably attached to the filter mounting unit 32 of the filter device 30, and dust such as lint on the outer peripheral surface of the filter unit 33. Adheres. After the heat pump unit 13 and the circulation fan 11 are stopped and the drying operation is finished, the cylindrical filter unit 33 is rotationally driven by the gear unit 61 (filter unit drive mechanism), the filter unit drive motor 63, and the drive gear 65. Then, by removing the dust adhering to the outer peripheral surface of the rotating filter unit 33 by the dust removing unit 50, it is possible to prevent a decrease in the air volume due to the clogging of the filter unit 33.

  Therefore, in the above-described washing / drying machine, the outer peripheral surface of the filter unit 33 to which dust adheres during the drying operation can be automatically cleaned after the drying operation is completed, and the air volume in the circulation path is not reduced when the drying operation is performed next time. High drying performance can be maintained. Thus, by providing the function of cleaning the filter unit 33 with a simple structure, drying performance and maintainability can be improved.

  Further, the elastic member 52 which is the dust removing unit 50 is partly pressed against the outer peripheral surface of the filter unit 33 and elastically deforms to remove dust such as lint attached to the outer peripheral surface of the filter unit 33. By rolling and gathering together while being pressed by the elastic member 52 as the portion 33 rotates, dust or the like can be easily and reliably removed without using a brush or the like that tends to remain.

  Further, dust such as lint attached to the outer peripheral surface of the filter unit 33 can be effectively removed by the plurality of spatulas 52 a to 52 f of the dust removing unit 50. Furthermore, as shown in FIG. 7, the spatula 52b, 52e of the plurality of spatulas 52a to 52f is attached to the outer peripheral surface of the filter unit 33 by being different in length from the other spatula 52a, 52c, 52d, 52f. While collecting dust such as lint by the elastic member 52 as the filter portion 33 rotates, the dust aggregate rolled up can be easily collected, and the dust aggregate can be easily separated from the outer peripheral surface of the filter portion 33. That is, as shown in FIG. 15E, the large and round dust aggregate 206 is easily dropped from between the elastic member 52 of the dust removing unit 50 and the filter 33c.

  Further, by storing the dust removed from the outer peripheral surface of the filter unit 33 by the dust removing unit 50 in the dust storing unit 35, the dust storing unit 35 is taken out together with the filter device 30, and the accumulated dust can be easily collected. Can be discarded. In addition, since the filter device 30 can be removed, the user can clean the filter unit 33 carefully.

  Further, the lid 36 provided in the upper opening of the box-shaped dust container 35 is pivoted so as to be opened and closed by a lid driving mechanism (the rotation shaft 39 and the gear 62), thereby forming an outer peripheral surface of the filter 33. When the attached dust is removed by the dust removing unit 50, the lid 36 is opened, and the lid 36 is closed except when dust is removed. Thus, it is possible to prevent dust accumulated in the dust removing unit 50 from flying up and being scattered in a dry operation without removing dust. Further, by repeating the dust removal several times, the lid 36 is opened and closed, so that the dust accumulated in the dust container 35 can be pressed by the lid 36 to compress the dust. A large amount of dust can be accommodated in the container.

  Further, by using the heat pump unit 13 as a heating device for drying the laundry in the washing tub 2, the air in the washing tub 2 circulated through the heat pump unit 13 is dehumidified by the evaporator of the heat pump unit 13. Since it heats later with a condenser, drying capacity and heating efficiency are improved.

  Moreover, since the air in the washing tub 2 circulated through the heat pump unit 13 is dehumidified by the evaporator of the heat pump unit 13 and then heated by the condenser, the filter unit of the filter device 30 arranged on the upstream side of the heat pump unit 13 By capturing fine dust and lint by 33, it is possible to prevent fine dust and lint from adhering to the evaporator or condenser and reducing the dehumidification efficiency and heating efficiency.

  In the said 1st Embodiment, although the elastic member 52 which has several spatula 52a-52f was used for the dust removal part 50, you may use not only a spatula but a brush-like elastic member etc. for a dust removal part. The elastic member 52 is not limited to the silicone resin, and may be an elastic member that does not damage the mesh-like filter 33c of the other filter portion 33.

[Second Embodiment]
The laundry dryer as an example of the dryer according to the second embodiment of the present invention has the same configuration as the laundry dryer of the dryer according to the first embodiment except for the notification function. Incorporate.

  In the washing and drying machine of the second embodiment, even if the lid 36 is driven to be closed by the lid driving mechanism (the rotary shaft 39 and the gear portion 62) from the state where the lid 36 is opened, the lid 36 is opened by the lid opening / closing sensor 70. When it is detected that the dust container is kept open, the control device 100 displays on the display unit 20b (shown in FIG. 3) as an example of a notification unit that the dust container 35 is full of dust. By doing so, it is possible to prompt the user to clean the inside of the dust container 35.

  When the dust container 35 is full of dust, the control device 100 stops the automatic cleaning function. Thereby, failure of the mechanism of the filter device 30 can be prevented.

  In the second embodiment, the display unit 20b serving as the notification unit displays that the dust container 35 is full of dust. However, the notification unit is not limited to this, and the LED lighting or flashing, buzzer, sound For example, a means for notifying that the dust container is full of dust may be provided.

[Third Embodiment]
FIG. 16: has shown the control block diagram of the washing dryer as an example of the dryer of 3rd Embodiment of this invention. The laundry dryer as an example of the dryer according to the third embodiment of the present invention has the same configuration as the laundry dryer of the dryer according to the first embodiment except for the clogging detection function. 2, FIG. 4 to FIG. 6 are used.

  As shown in FIG. 16, the washing and drying machine of the third embodiment includes a clogging detection unit 80 that detects whether or not the filter unit 33 of the filter device 30 is clogged, a microcomputer, an input / output circuit, and the like. The control apparatus 1100 which consists of these is provided. This control device 1100 is based on signals from the operation unit 20a of the operation display unit 20, the temperature sensor 16, the lid opening / closing sensor 70, and the clogging detection unit 80, the rotary drum drive motor 4, the circulation fan 11, and the heat pump. The unit 13, the display unit 20b of the operation display unit 20, the water supply valve 41, the drain valve 42, the filter unit drive motor 63, the lid opening / closing drive motor 64, and the like are controlled.

  The clogging detection unit 80 detects whether or not the filter unit 33 of the filter device 30 is clogged based on the temperature of air detected by a temperature sensor (not shown) disposed in the circulation path. To do. When the filter unit 33 is clogged, the flow rate of air flowing in the circulation path is reduced, and the temperature of the air rises. Therefore, the clogging detection unit 80 uses this characteristic. For example, the temperature sensor for detecting the clogging is disposed downstream of the filter device 30 and the circulation fan in the circulation path.

  In the washing and drying machine, when the clogging detection unit 80 detects clogging of the filter unit 33 during the drying operation in which the circulation fan 11 circulates the air in the washing tub 2 through the heat pump unit 13, the control device 1100 detects the clogging of the filter unit 33. Then, after controlling the circulation fan 11 to lower the rotation speed of the circulation fan 11 from the current rotation speed, the filter unit 33 of the filter device 30 is rotated to remove dust attached to the outer peripheral surface of the filter unit 33. Remove by 50. By doing so, it becomes possible to remove the dust adhering to the outer peripheral surface by rotating the filter portion 33 of the filter device 30 even during the drying operation. If the cleaning operation of the filter unit 33 is started without lowering the rotational speed of the circulation fan 11 during the drying operation, dust rises in the filter device 30 and cleaning cannot be performed normally.

  When the cleaning is completed, the rotational speed of the circulation fan 11 is returned to the original rotational speed, and the drying operation is continued. Thereby, drying performance can be improved.

  In the first to third embodiments, the laundry dryer has been described as the dryer. However, the dryer is not limited to this, and the present invention may be applied to a dryer having no washing function.

  In the first to third embodiments, the drum type washer / dryer in which the rotary drum 3 is arranged in a lateral direction has been described. The present invention can be applied not only to a drum type laundry dryer or dryer, but also to a vertical type laundry dryer or dryer provided with a drum in the vertical direction.

  Moreover, although the said 1st-3rd embodiment demonstrated the washing-drying machine provided with the filter apparatus 30 which has the cylindrical filter part 33, a filter part is not restricted to this, Conical shape, truncated cone shape, etc. A filter unit having a rotating surface may be used.

  Moreover, in the said 1st-3rd embodiment, although the sub filter part 110 was attached to the connection part of the main-body part 101 and the blowing side duct connection part 104, it is located in the downstream of the filter part of a filter apparatus. The filter device may be provided with a sub filter unit. In this case, the sub-filter unit can be removed from the filter device storage unit together with the filter device, and maintenance performance such as cleaning of the sub-filter unit is improved.

  Moreover, in the said 1st-3rd embodiment, although the filter part was automatically cleaned after completion | finish of drying operation, the dryer of this invention is not restricted to this, During a washing process and a rinsing process, Automatic cleaning may be performed, or the filter unit may be automatically cleaned when a push button provided on the operation unit is operated.

  Furthermore, although the said 1st-3rd embodiment demonstrated the washing-drying machine using the heat pump unit 13 as a heating apparatus, a heating apparatus is not restricted to this, This invention is applied to the drying machine using heat sources, such as a heater. You may apply.

  Although specific embodiments of the present invention have been described above, the present invention is not limited to the first to third embodiments, and can be implemented with various modifications within the scope of the present invention. .

  The present invention and the embodiment are summarized as follows.

The dryer of this invention is
A storage tank 2 for storing a dry object;
A circulation path (23, 24, 26, 40) for circulating the air in the storage tank 2;
A heating device 13 for drying the drying object in the storage tank 2, and
A circulation fan 11 for circulating the air in the storage tank 2 through the heating device 13;
A filter device 30 disposed in the circulation path (23, 24, 26, 40) through which air is circulated by the circulation fan 11;
The heating device 13 and the control devices 100 and 1100 for controlling the circulation fan 11 are provided,
The filter device 30 includes:
A filter mounting portion 32;
A cylindrical or conical or truncated cone shaped filter part 33 that is rotatably attached to the filter attaching part 32 and flows air from the outer peripheral side toward the inner peripheral side,
A filter unit drive mechanism 61 for rotationally driving the filter unit 33;
It has a dust removing section 50 provided on the filter mounting section 32 and configured to remove dust attached to the outer peripheral surface of the filter section 33 rotated by the filter section driving mechanism 61.

  According to the above configuration, the air in the storage tank 2 is circulated through the heating device 13 by the circulation fan 11 in the drying operation. At this time, air flows from the outer peripheral side to the inner peripheral side of the cylindrical (or conical or frustoconical) filter unit 33 rotatably attached to the filter mounting unit 32 of the filter device 30, and the filter unit 33. Dust, such as lint, adheres to the outer peripheral surface of. Then, after stopping the heating device 13 and the circulation fan 11 and finishing the drying operation, the filter unit 33 having a cylindrical shape (or a conical shape or a truncated cone shape) is rotationally driven by the filter unit driving mechanism 61 to rotate the filter. By removing the dust adhering to the outer peripheral surface of the portion 33 by the dust removing portion 50, it is possible to prevent a decrease in the air volume due to clogging of the filter portion 33. Therefore, by providing the function of cleaning the filter portion with a simple structure, the drying performance and maintainability can be improved. In addition, not only the filter part is cleaned after the drying operation is completed, but also the filter part may be cleaned during the washing process or the rinsing process.

In one embodiment of the dryer,
The dust removing unit 50 has at least an elastic member 52 in a state where a part thereof is pressed against the outer peripheral surface of the filter unit 33 and is elastically deformed.

  According to the above embodiment, the elastic member 52 of the dust removing unit 50 is partly pressed against the outer peripheral surface of the filter unit 33 and elastically deformed, whereby dust such as lint attached to the outer peripheral surface of the filter unit 33 is obtained. Can be easily and reliably removed without using a brush or the like, in which dust or the like is likely to remain.

In one embodiment of the dryer,
The dust removing unit 50 includes a plurality of spatulas 52a to 52f extending in the rotation direction along the outer periphery of the filter unit 33.
At least one of the plurality of spatulas 52a to 52f is different in length from the other spatula.

  According to the above embodiment, the dust removing unit 50 has the plurality of spatulas 52a to 52f extending in the rotation direction along the outer periphery of the filter unit 33, so that the outer periphery of the filter unit 33 can be effectively performed by the plurality of spats 52a to 52f. Dust and other dust attached to the surface can be removed. Further, when at least one of the plurality of spatulas 52a to 52f is different in length from the other spatula, dust such as lint attached to the outer peripheral surface of the filter portion 33 is made elastic by the rotation of the filter portion 33. The dust aggregates rolled up while being pressed by 52 can be easily collected, and the dust aggregates can be easily separated from the outer peripheral surface of the filter portion 33.

In one embodiment of the dryer,
The filter device 30 includes:
A dust container 35 for storing the dust removed from the outer peripheral surface of the filter unit 33 by the dust removing unit 50 is provided.

  According to the above-described embodiment, the dust removed from the outer peripheral surface of the filter part 33 by the dust removing part 50 is accommodated in the dust accommodating part 35 so that the dust accommodating part 35 can be taken out together with the filter device 30. Thus, accumulated dust can be easily discarded.

In one embodiment of the dryer,
The dust container 35 has a box shape with an opening on the upper side,
A lid 36 that pivotably opens and closes the opening of the dust container 35;
A lid driving mechanism (39, 62) for opening and closing the lid 36;

  According to the above-described embodiment, the lid 36 for opening and closing the upper opening of the box-shaped dust container 35 is pivoted so as to be opened and closed by the lid driving mechanism (39, 62). When the dust adhering to the dust is removed by the dust removing unit 50, the lid 36 can be opened and the lid 36 can be closed except when dust is removed. Thus, it is possible to prevent the dust accumulated in the dust removing unit 50 from flying up and being scattered in the dry operation without removing the dust.

  Further, by repeating the dust removal several times, the lid 36 is opened and closed, so that the dust accumulated in the dust container 35 can be pressed by the lid 36 to compress the dust. A large amount of dust can be accommodated in the container.

In one embodiment of the dryer,
A lid opening / closing sensor 70 for detecting opening / closing of the lid 36;
Even if the lid driving mechanism (39, 62) is driven to close the lid 36 from the opened state, the lid opening / closing sensor 70 detects that the lid 36 remains open. Then, a notification unit 20b that notifies that the dust container 35 is full of the dust is provided.

  According to the embodiment, even if the lid 36 is driven to be closed by the lid driving mechanism (39, 62) from the opened state, the lid 36 remains opened by the lid opening / closing sensor 70. , The notification unit 20b notifies the user that the dust container 35 is full of dust, thereby prompting the user to clean the dust container 35.

In one embodiment of the dryer,
A clogging detection unit that detects whether or not the filter unit 33 of the filter device is clogged during a drying operation in which the circulation fan 11 circulates the air in the storage tank 2 through the heating device 13. 80,
When the clogging detection unit 80 detects clogging of the filter unit 33, the control device 1100 controls the circulation fan 11 to reduce the rotation speed of the circulation fan 11 from the current rotation speed,
The filter unit 33 of the filter device 30 is rotated by the filter unit driving mechanism 61, and dust attached to the outer peripheral surface of the filter unit is removed by the dust removing unit 50.

  According to the above embodiment, when the clogging detection unit 80 detects clogging of the filter unit 33 during the drying operation in which the circulation fan 11 circulates the air in the storage tank 2 via the heating device 13, the control device 1100. The circulation fan 11 is controlled to reduce the rotation speed of the circulation fan 11 from the current rotation speed, and then the filter section 33 of the filter device 30 is rotated to remove dust attached to the outer peripheral surface of the filter section 33. It is removed by the part 50. Thereby, it becomes possible to remove the dust adhering to the outer peripheral surface by rotating the filter unit 33 of the filter device 30 even during the drying operation. When the cleaning is completed, the rotational speed of the circulation fan 11 is returned to the original rotational speed, and the drying operation is continued. Thereby, drying performance can be improved.

In one embodiment of the dryer,
An outer box 1 in which the storage tank 2 is disposed;
A filter device storage section 40 provided in the outer box 1 in which the filter device 30 is detachably stored;
The filter device 30 includes a sub-filter unit 110 provided in the filter mounting portion 32 so as to be located on the downstream side of the filter unit 33.

  According to the above-described embodiment, the filter device 30 is detachably accommodated in the filter device accommodation portion 40 provided in the outer box 1, and the filter attachment portion 32 of the filter device 30 is positioned downstream of the filter portion 33. By providing the sub-filter unit 110 in such a manner, dust that could not be removed by the filter unit 33 can be reliably removed by the sub-filter unit 110 and the sub-filter unit 110 can be removed from the filter device storage unit 40 together with the filter device 30. Thus, cleaning of the sub-filter unit 110 is facilitated.

DESCRIPTION OF SYMBOLS 1 ... Outer box 2 ... Washing tub 3 ... Rotating drum 3A ... Circumferential surface 3B ... Bottom surface 4 ... Rotating drum drive motor 5 ... Drying object 7 ... Compressor 8 ... Condenser 8A ... Refrigerant line 8B ... Fin 9 ... Expansion Valve 10 ... Evaporator 10A ... Refrigerant line 10B ... Fin 11 ... Circulating fan 13 ... Heat pump unit 14 ... Refrigerant pipe 16 ... Temperature sensor 20 ... Operation display unit 20a ... Operation unit 20b ... Display unit 21 ... Door 22 ... Exhaust port 23 DESCRIPTION OF SYMBOLS 1st air circulation duct 24 ... 2nd air circulation duct 25 ... Intake port 26 ... Air blow duct 30 ... Filter apparatus 31 ... Handle part 31a ... Handle opening 32 ... Filter attachment part 32a ... Side wall part 32b ... Base part 33 ... Filter part 33a ... Side plate 33b ... Shaft part 33c ... Filter 34 ... Arm part 35 ... Dust container 36 ... Lid 37 ... Opening / closing door 38 ... Spring member 39 ... Rotating shaft 40 ... Filter device container 40a ... Intake port 40b ... Exhaust port 40c ... Opening 41 ... Water supply valve 42 ... Drain valve 50 ... Dust removal part 51 ... Plate member 52 ... Elastic member 52a-52f ... Spatula 60 ... Circular hole 61 ... Gear part 62 ... Gear part DESCRIPTION OF SYMBOLS 63 ... Filter unit drive motor 64 ... Lid opening / closing drive motor 65 ... Drive gear 70 ... Lid opening / closing sensor 80 ... Clogging detection unit 100, 1100 ... Control device 101 ... Main body unit 102 ... Suction side duct connection unit 103 ... Exhaust duct 104 ... Blower side duct connection part 110 ... Sub filter part

Claims (5)

A storage tank for storing a dry object;
A circulation path for circulating the air in the storage tank;
A heating device for drying the object to be dried in the storage tank;
A circulation fan for circulating the air in the storage tank through the heating device;
A filter device disposed in the circulation path through which air is circulated by the circulation fan;
A heating device and a control device for controlling the circulation fan;
The filter device is
A filter mounting portion;
A cylindrical or conical or truncated cone shaped filter part that is rotatably attached to the filter attaching part, and air flows from the outer peripheral side toward the inner peripheral side,
A filter unit driving mechanism for rotationally driving the filter unit;
A dryer comprising: a dust removing unit that is provided in the filter mounting unit and removes dust attached to an outer peripheral surface of the filter unit that is rotated by the filter unit driving mechanism. The dryer according to claim 1,
The said dust removal part has at least the elastic member of the state which was partly pressed by the outer peripheral surface of the said filter part, and was elastically deformed, The dryer characterized by the above-mentioned. In the dryer according to claim 1 or 2,
The dust removing unit has a plurality of spatulas extending in the rotation direction along the outer periphery of the filter unit,
At least one of the plurality of spatulas has a length different from that of the other spatula. In the dryer according to any one of claims 1 to 3,
The filter device is
A dryer having a dust container for storing the dust removed from the outer peripheral surface of the filter unit by the dust removing unit. In the dryer according to claim 4,
The dust container has a box shape with an opening on the upper side,
A lid that pivots to open and close the opening of the dust container;
A dryer comprising: a lid driving mechanism for opening and closing the lid.

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