CN113614303B

CN113614303B - Washing and drying integrated machine

Info

Publication number: CN113614303B
Application number: CN202080024573.1A
Authority: CN
Inventors: 季恒; 福井秋陆
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd; Aqua Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd; Aqua Co Ltd
Priority date: 2019-04-04
Filing date: 2020-01-21
Publication date: 2023-08-15
Anticipated expiration: 2040-01-21
Also published as: JP7320774B2; WO2020199740A1; JP2020168231A; CN113614303A

Abstract

A washing and drying integrated machine can improve maintainability of a drying filter. The washing and drying integrated machine (1) comprises: an outer tube (3) capable of storing water, and a circulation path (20) having a discharge port (20D) and a return port (20E) connected to the outer tube (3). The washing and drying integrated machine (1) comprises: an air supply unit (21) for taking out air in the outer tube (3) from the outlet (20D) into the circulation path (20) and returning the air from the return port (20E) into the outer tube (3) to circulate the air, and a heating unit (22) provided in the circulation path (20) to heat the air in the circulation path (20). The washing and drying integrated machine (1) comprises a drying filter (42) which is arranged on the side of the extraction port (20D) relative to the heating part (22) in the circulation path (20). The drying filter (42) has a vertical surface portion (42A) which captures foreign matter in the air flowing back and forth from the outlet (20D) to the return port (20E) in the circulation path (20). The washing and drying integrated machine (1) comprises a water supply part (50) for supplying water to the vertical surface part (42A) from the upper side (Z1), a scraper (62) capable of moving along the vertical surface part (42A), and an actuator for moving the scraper (62).

Description

Washing and drying integrated machine

Technical Field

The invention relates to a washing and drying integrated machine.

Background

The washing and drying integrated machine described in patent document 1 below includes: the washing machine comprises an outer barrel capable of storing water, a roller which is arranged in the outer barrel and accommodates washings, and a circulating air path. The circulating air path comprises an air inlet and an air outlet which are connected with the outer cylinder, and an air supply unit with an air blower and a heater. When the blower is operated, air in the outer cylinder circulates in such a manner that the air is sucked into the circulating air passage from the air inlet and flows into the outer cylinder from the air outlet. The circulated air is heated by the heater in the circulation air path. The washings in the drum are dried by the heated air. A drying filter for capturing foreign matters such as broken wires contained in circulated air is disposed in the air supply unit. For easy cleaning, the drying filter can be detached from the air supply unit.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication No. 2011-244984

Disclosure of Invention

Problems to be solved by the invention

In the washing and drying integrated machine described in patent document 1, the user needs to remove the drying filter periodically to clean it, and therefore maintenance of the drying filter is troublesome. In particular, in the existing washing and drying integrated machine, the drying filter needs to be cleaned after each drying process is finished, so that the number of times of removing the drying filter is increased. When the number of times of removing the drying filter increases, the possibility that the user damages the drying filter when removing or assembling the drying filter increases.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a washing and drying integrated machine capable of improving maintainability of a drying filter.

Solution for solving the problem

The invention relates to a washing and drying integrated machine, which comprises: a case; an outer cylinder supported by the tank body and capable of storing water; a washing cylinder which is accommodated in the outer cylinder and accommodates washings; a circulation path having a discharge port and a return port connected to the outer tube; an air supply unit configured to circulate air in the outer tube by taking the air out of the take-out port into the circulation path and returning the air from the return port into the outer tube; a heating unit provided in the circulation path and configured to heat air in the circulation path; a drying filter which is disposed on the side of the take-out port with respect to the heating portion in the circulation path, and which has a vertical surface portion for capturing foreign matters in the air passing from the take-out port to the return port in the circulation path; a water supply unit for supplying water to the longitudinal surface unit from above; a scraper movable along the longitudinal surface portion; and an actuator to move the scraper.

In addition, the invention is characterized in that the washing and drying integrated machine further comprises: and a control unit that controls the water supply unit and the actuator, wherein the control unit moves the scraper to a lower portion of the vertical surface unit via the actuator, and supplies water to the vertical surface unit from above via the water supply unit to perform maintenance processing.

In addition, the invention is characterized in that the washing and drying integrated machine further comprises: a duct that accommodates the drying filter as a part of the circulation path and has a release hole formed at a lower side of the longitudinal surface portion; a water discharge path for discharging water in the outer tub; and a flow path connecting the release hole and the drainage path.

Effects of the invention

According to the present invention, the air in the outer tub of the washing and drying integrated machine circulates so as to be taken out into the circulation path from the take-out port and returned into the outer tub from the return port. The circulated air is heated by the heating part in the circulation path to become hot air, and the laundry in the washing drum is dried. The drying filter provided on the side of the take-out port in the circulation path with respect to the heating section captures foreign matter contained in the air that returns to the take-out port from the front in the circulation path for circulation. Therefore, foreign matter in the air can be suppressed from adhering to the heating portion.

When the water supply portion supplies water from the upper side to the vertical surface portion of the drying filter, foreign matter trapped and adhering to the vertical surface portion is peeled off from the vertical surface portion by the water flowing through the vertical surface portion. Foreign matter adhering to the longitudinal section is also peeled off from the longitudinal section by being scraped by a scraper that moves along the longitudinal section. Foreign matter peeled off from the vertical surface portion falls into the circulation path and reaches the outer tube from the take-out port, for example, and is removed from the outer tube when the outer tube is drained. Thus, the washing and drying integrated machine has the automatic cleaning function of the drying filter by the water and the scraper, so that a user can maintain the drying filter without detaching the drying filter. Thus, the maintainability of the drying filter can be improved.

Further, according to the present invention, a case is assumed in which the scraper scrapes off foreign matter from the longitudinal surface portion of the drying filter so that the foreign matter adheres to the scraper, and in this case, water is supplied from the upper side to the longitudinal surface portion in a state in which the scraper moves to the lower portion of the longitudinal surface portion to perform maintenance processing. Thereby, the foreign matter adhering to the wiper can be removed from the wiper by the water flowing through the longitudinal surface portion. Thus, the user need not maintain the drying filter nor the scraper. Thus, maintenance can be improved.

Further, according to the present invention, the water supplied from the water supply portion and the foreign matter removed from the vertical surface portion of the drying filter can be caused to flow to the drain passage from the release hole and the flow path of the duct, without passing through the outer tube. This prevents water and foreign matter from adhering to the laundry contained in the washing tub of the outer tub.

Drawings

Fig. 1 is a schematic longitudinal sectional left side view of a washing and drying integrated machine according to an embodiment of the present invention.

Fig. 2 is a perspective view of the outer tub and the drying unit disposed in the washing and drying integrated machine, viewed from the rear side.

Fig. 3 is an exploded perspective view of the tub and the drying unit.

Fig. 4 is a perspective view of a duct and a filter member constituting the drying unit.

Fig. 5 is a perspective view of the conduit, filter member and scraping mechanism.

Fig. 6 is a rear view of the duct, filter member and scraping mechanism.

Description of the reference numerals

1: washing and drying integrated machine; 2: a case; 3: an outer cylinder; 5: a water drainage path; 7: a washing drum; 20: a circulation path; 20D: a take-out port; 20E: a return port; 21: an air supply unit; 22: a heating section; 24: a control unit; 30: a pipe; 32U: a release hole; 42: drying the filter; 42A: a longitudinal surface portion; 50: a water supply part; 62: a scraper; 63: an actuator; 100: a flow path; l: washing; t: a foreign matter; z1: an upper side; z2: and the lower side.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 is a schematic longitudinal sectional left side view of a washing and drying integrated machine 1 according to an embodiment of the present invention. The direction perpendicular to the paper surface of fig. 1 is referred to as a left-right direction X of the washing and drying integrated machine 1, the left-right direction in fig. 1 is referred to as a front-rear direction Y of the washing and drying integrated machine 1, and the up-down direction in fig. 1 is referred to as an up-down direction Z of the washing and drying integrated machine 1. Of the left-right directions X, the back side of the paper surface of fig. 1 is referred to as the right side X1, and the front side of the paper surface of fig. 1 is referred to as the left side X2. Of the front-rear directions Y, the left side in fig. 1 is referred to as front side Y1, and the right side in fig. 1 is referred to as rear side Y2. Of the vertical directions Z, the upper side is referred to as an upper side Z1, and the lower side is referred to as a lower side Z2.

The washing and drying integrated machine 1 is a so-called drum washing and drying integrated machine. The washing and drying integrated machine 1 comprises: the water tank includes a tank body 2, an outer tube 3 disposed in the tank body 2, a water supply path 4 and a water discharge path 5 connected to the outer tube 3, and a water discharge filter 6 for capturing foreign matters from water discharged from the outer tube 3 through the water discharge path 5. The washing and drying integrated machine 1 further includes: a washing drum 7 accommodated in the outer tub 3 and accommodating laundry L; a motor 8 for rotating the washing drum 7; and a drying unit 9 for drying the laundry L in the washing drum 7.

The case 2 is formed in a box shape. The front surface 2A of the case 2 is, for example, a vertical surface. An opening 2B for communicating the inside and outside of the case 2 is formed in the front surface 2A. A door 10 for opening and closing the opening 2B is provided on the front surface 2A.

The outer cylinder 3 is elastically supported by the case 2 via a hanger bar (not shown). The outer tube 3 has a cylindrical circumferential wall 3A centered on an axis J extending in the horizontal direction H in the front-rear direction Y, a disk-shaped rear wall 3B closing the hollow portion of the circumferential wall 3A from the rear side Y2, and an annular front wall 3C connected to the front end edge of the circumferential wall 3A. The back surface wall 3B is arranged vertically and has an outer peripheral portion 3D and a central portion 3E protruding one step further toward the rear side Y2 than the outer peripheral portion 3D. A through hole 3F penetrating the central portion 3E in the front-rear direction Y along the axis J is formed in the center of the central portion 3E. The front wall 3C has an annular first portion 3G protruding from the front end edge of the circumferential wall 3A toward the axis J, a cylindrical second portion 3H protruding from the inner peripheral edge of the first portion 3G toward the front side Y1, and an annular third portion 3I protruding from the front end edge of the second portion 3H toward the axis J. Inside the third portion 3I, a port 3J is formed which communicates with the hollow portion of the circumferential wall 3A from the front side Y1. The inlet 3J is opposed to and communicates with the opening 2B of the housing 2 from the rear side Y2.

The water supply channel 4 has one end (not shown) connected to a faucet (not shown) and the other end 4A connected to, for example, the central portion 3E of the rear wall 3B of the outer tube 3. When water is supplied, water from a tap is supplied from a water supply path 4 into the outer tube 3. The outer tub 3 stores tap water, and water such as detergent water in which detergent is dissolved in the tap water. A water supply valve 11 that is opened and closed to start or stop water supply is provided in the middle of the water supply path 4.

The drain passage 5 is connected to a lower end portion of the outer tube 3, for example, a lower end portion of the first portion 3G of the front wall 3C. The water in the outer cylinder 3 is discharged from the water discharge path 5 to the outside of the machine body. A drain valve 12 that is opened and closed to start or stop the drainage is provided in the middle of the drainage path 5.

The drain filter 6 is provided in the drain passage 5 upstream of the outer tube 3 than the drain valve 12. Since the front end of the drain filter 6 is exposed to the front surface 2A of the housing 2, the user can grasp the front end of the drain filter 6 and attach and detach the drain filter 6 to and from the housing 2. The drain filter 6 can be constructed using a known structure.

The washing drum 7 is smaller than the outer drum 3 by one turn. The washing tube 7 includes a cylindrical circumferential wall 7A disposed coaxially with the circumferential wall 3A of the outer tube 3, a disk-shaped rear wall 7B closing the hollow portion of the circumferential wall 7A from the rear side Y2, and an annular ring wall 7C protruding from the front end edge of the circumferential wall 7A toward the axis J. At least the circumferential wall 7A of the washing tub is formed with a plurality of through holes 7D, and water in the outer tub 3 flows between the outer tub 3 and the washing tub 7 via the through holes 7D. Thereby, the water level in the outer tub 3 coincides with the water level in the washing tub 7. In the center of the rear surface wall 7B of the washing tub 7, a support shaft 13 extending rearward Y2 along the axis J is provided. The rear end portion of the support shaft 13 is disposed on the rear side Y2 of the rear wall 3B through the through hole 3F of the rear wall 3B of the outer tube 3.

Inside the annular wall 7C, an inlet 7E is formed which communicates with the hollow portion of the circumferential wall 7A from the front side Y1. The outlet 7E is opposed to and communicates with the outlet 3J of the outer tube 3 and the opening 2B of the housing 2 from the rear side Y2. The doorway 3J and the doorway 7E are opened and closed together with the opening 2B by the door 10. The user of the washing and drying integrated machine 1 throws the laundry L into the washing tub 7 through the opened opening 2B, the inlet and outlet 3J, and the inlet and outlet 7E.

The motor 8 is disposed in the case 2 at the rear side Y2 of the rear wall 3B of the outer tube 3. The motor 8 is coupled to a support shaft 13 provided in the washing tub 7. The driving force generated by the motor 8 is transmitted to the support shaft 13, and the washing tub 7 rotates around the axis J along with the support shaft 13. A clutch mechanism (not shown) for transmitting or shutting off the driving force of the motor 8 to the support shaft 13 may be provided between the motor 8 and the support shaft 13.

The drying unit 9 includes a circulation path 20, a blower 21, and a heater 22. The circulation path 20 is a flow path disposed on the upper side Z1 of the outer tube 3 in the case 2. The circulation path 20 has a midway portion 20A extending in the front-rear direction Y, a rear portion 20B extending from the rear end of the midway portion 20A to the lower side Z2, and a front portion 20C extending from the front end of the midway portion 20A to the lower side Z2. A take-out port 20D is formed at the front end of the lower end portion of the rear portion 20B. The outlet 20D is connected to a portion of the outer peripheral portion 3D of the rear surface wall 3B of the outer tube 3 higher than the upper limit water level, and communicates with the inside of the outer tube 3 from the rear side Y2. A return port 20E is formed at the lower end of the front portion 20C. The return port 20E is connected to the upper end portion of the second portion 3H of the front wall 3C of the outer tube 3, and communicates with the inside of the outer tube 3 from the upper side Z1.

The blower 21 is a so-called blower, and includes a rotary blade 23 disposed in an area of the circulation path 20 upstream of the outlet 20D, and a motor (not shown) for rotating the rotary blade 23. When the rotary vane 23 rotates, the air in the outer tub 3, that is, the air in the outer tub 3 and the air in the washing tub 7 is returned to the outer tub 3 from the return port 20E after being taken out into the circulation path 20 from the take-out port 20D as indicated by the thick dotted arrow. Thereby, the air in the outer tube 3 circulates so as to sequentially flow through the outer tube 3 and the circulation path 20.

The heating unit 22 is a heat exchanger in a heat pump, a normal heater, or the like, and is provided at least partially in the circulation path 20. The portion of the heating portion 22 disposed in the circulation path 20 has a plurality of fin-shaped heat dissipation portions 22A. Since the heat radiating portion 22A becomes high temperature when the heating portion 22 is operated, air flowing through the circulation path 20 is heated to become hot air when passing around the heat radiating portion 22A.

The washing and drying integrated machine 1 further includes a control section 24 configured as a microcomputer. The control unit 24 controls the operations of the motor 8, the water supply valve 11, the drain valve 12, the blower 21, and the heater 22 to perform the washing and drying operation. The washing and drying operation includes a washing process, a rinsing process, a dehydrating process, and a drying process.

Before the start of the washing process, detergent is put into the washing drum 7. During the washing, the control unit 24 opens the water supply valve 11 for a predetermined time in a state where the drain valve 12 is closed, supplies water to the outer tub 3 and the washing tub 7, and then rotates the washing tub 7 by the motor 8. Thereby, the laundry L in the washing tub 7 is knocked. In the knocking, the laundry L is lifted repeatedly to a certain extent and then naturally falls down to the water surface. The dirt is removed from the laundry L by the impact generated by the tumbling and the detergent component contained in the detergent water stored in the washing tub 7. When the control unit 24 opens the drain valve 12 to drain water after a predetermined time has elapsed since the start of the tumbling, the washing process is ended.

In the rinsing process, the control unit 24 opens the water supply valve 11 for a predetermined time in a state where the drain valve 12 is closed, supplies water to the outer tub 3 and the washing tub 7, and then rotates the washing tub 7 by the motor 8. In this way, since the above-described tumbling is repeated, the laundry L is rinsed by the tap water in the washing tub 7. When the control unit 24 drains water after a predetermined time has elapsed from the start of the rolling, the rinsing process ends. The rinsing process may be repeated a plurality of times. During the dehydration, the control unit 24 rotates the washing tub 7 in a dehydrated state with the drain valve 12 opened. The laundry L in the washing tub 7 is dehydrated by centrifugal force generated by the dehydration rotation of the washing tub 7. The water oozed from the laundry L by dehydration is discharged to the outside of the machine body from the water discharge path 5. The dehydration process may be performed not only after the rinsing process but also after the washing process.

During the drying process, the control unit 24 generates hot air through the air blowing unit 21 and the heating unit 22, circulates the hot air between the washing tub 7 and the circulation path 20, and supplies the hot air to the laundry L in the washing tub 7. Thereby, the laundry L is dried. During the washing operation, foreign matter such as broken threads are generated, and the foreign matter flows along with hot air during the drying process. When foreign matter adheres to the heat radiating portion 22A of the heating portion 22 and accumulates, there is a possibility that performance degradation accompanying degradation of the heating efficiency of the heating portion 22 and degradation of the air flow in the circulation path 20 occurs, and thus it is necessary to catch the foreign matter. Thus, the drying unit 9 further includes: a filter member 25, a branch 26, and a water filling valve 27.

Hereinafter, the air blowing unit 21 and the circulation path 20 will be described in detail, and the filter member 25, the branch 26, and the water injection valve 27 will be described. Fig. 2 is a perspective view of the outer tub 3 and the drying unit 9 as seen from the rear side Y2. The blower 21 includes a hollow disk-shaped casing 29 accommodating the rotary blades 23. The housing 29 is a part of the circulation path 20 and is fixed to the casing 2. The inner space of the housing 29 constitutes a connection portion between the intermediate portion 20A and the rear portion 20B in the circulation path 20.

Fig. 3 is an exploded perspective view of the outer tub 3 and the drying unit 9. The circulation path 20 includes a duct 30 occupying almost the entire rear portion 20B, and a connection hose 31 connecting the housing 29 and the duct 30. The duct 30 includes a main body 32 and a cover 33 (see fig. 2).

The main body 32 has a curved wall 32A curved so as to descend to the left lower side along the upper left portion of the circumferential wall 3A of the outer tube 3, and a top wall 32B having a substantially semicircular plate shape bulging toward the front side Y1 and extending from the right end of the curved wall 32A to the left side X2. Between the curved wall 32A and the top wall 32B, a downstream space 32C that narrows in the up-down direction Z as going to the right side X1 is partitioned. The top wall 32B extends obliquely with respect to the horizontal direction H so as to descend toward the left side X2. A cylindrical upper connecting portion 32D protruding upward Z1 is provided on the top wall 32B. The internal space of the upper coupling portion 32D is in a state of communicating with the downstream space 32C from the upper side Z1. The downstream space 32C and the inner space of the upper connecting portion 32D constitute a part of the inner space of the rear portion 20B of the circulation path 20. The main body 32 has a side wall 32E that spans between the end edges of the curved wall 32A and the top wall 32B so as to block the downstream space 32C from the front side Y1 and the left side X2.

The main body 32 has a first vertical wall 32F extending from the rear end of the curved wall 32A toward the lower side Z2, and a lateral wall 32G protruding from the lower end of the first vertical wall 32F toward the rear side Y2. The upper end of the first vertical wall 32F is curved in an arc shape along the curved wall 32A, and the lower end of the first vertical wall 32F extends linearly while being inclined with respect to the horizontal direction H so as to descend toward the left side X2. The lateral wall 32G is strip-shaped, and extends while being inclined with respect to the horizontal direction H along the lower end of the first longitudinal wall 32F. The rear end portion of the side wall 32E is disposed on the rear side Y2 of the downstream space 32C, and the lower portion of the rear end portion of the side wall 32E is connected to the left ends of the first vertical wall 32F and the horizontal wall 32G.

The main body 32 has an L-shaped second vertical wall 32H as viewed from the back of the side wall 32E and the lateral wall 32G. A single or a plurality of the above-described take-out ports 20D are formed in the lower end portion of the second vertical wall 32H. In the present embodiment, one long hole-like extraction port 20D is formed long in the up-down direction Z, and penetrates the second vertical wall 32H in the front-rear direction Y. The second vertical wall 32H is provided with a tubular lower connecting portion 32I which wraps the take-out port 20D and projects toward the front side Y1. A through hole 3K having the same shape as the outlet 20D is formed in the outer peripheral portion 3D of the rear wall 3B of the outer tube 3. The lower connecting portion 32I is inserted into the through hole 3K from the rear side Y2. Thereby, the extraction port 20D is connected to the rear surface wall 3B and communicates with the inside of the outer cylinder 3.

The main body 32 has an outer wall 32J that continuously wraps the right edge of the first longitudinal wall 32F and the left, lower and right edges of the second longitudinal wall 32H and protrudes toward the rear side Y2. The outer wall 32J is formed in a substantially U-shape when viewed from the back, and both upper ends of the outer wall 32J are connected to the left and right ends of the rear end portion of the top wall 32B, respectively. In an upper end portion of the outer wall 32J connected to the right end of the top wall 32B, a cutout 32JA recessed toward the front side Y1 is formed. A plurality of first locking portions 32JB protruding from the outer peripheral surface are provided in a front region on the outer peripheral surface of the outer wall 32J. Bolts B1 (see fig. 2) are inserted through insertion holes formed in the respective first locking portions 32JB, and are attached to screw holes 3L provided in corresponding positions of the rear wall 3B of the outer tube 3. Thereby, the duct 30 including the main body 32 is integrally fixed to the outer cylinder 3. The main body 32 is formed with a space 32K parted by the rear end portion of the side wall 32E, the lateral wall 32G, the top wall 32B, and the right portion of the outer wall 32J. The intermediate space 32K is substantially rectangular in rear view, is thin in the front-rear direction Y, is adjacent to the first vertical wall 32F from the rear side Y2, and communicates with the downstream space 32C from the rear side Y2.

The main body 32 has a vertical partition plate 32L protruding from the second vertical wall 32H to the rear side Y2 and a horizontal partition plate 32M. The vertical partition plate 32L is disposed adjacent to the intermediate space 32K from the left side X2, extends from the rear end portion of the top wall 32B to the lower side Z2, and is connected to the edge of the upper side Z1 of the take-out port 20D. The horizontal partition plate 32M is disposed on the lower side Z2 of the intermediate space 32K and on the upper side Z1 of the outlet 20D, and is disposed between the intermediate portion of the vertical partition plate 32L and the right portion of the outer wall 32J. The lateral partition plate 32M is inclined with respect to the horizontal direction H so as to descend toward the left side X2, and extends substantially parallel to the top wall 32B and the lateral wall 32G. A slit 32P that bisects the transverse partition plate 32M in the lateral direction X is formed in a middle portion of the transverse partition plate 32M. A screw hole 32Q is formed in the rear surface portion of the second vertical wall 32H in the slit 32P.

The main body 32 is formed with an arrangement space 32R partitioned by right portions of the vertical partition plate 32L, the horizontal partition plate 32M, the top wall 32B, and the outer wall 32J. The arrangement space 32R is a substantially rectangular space as viewed from the back, and is a space thin in the front-back direction Y, and communicates with the intermediate space 32K from the back side Y2. The portion of the arrangement space 32R located on the upper side Z1 of the lateral wall 32G overlaps the entire region of the intermediate space 32K when viewed from the rear. The filter member 25 is disposed in the disposition space 32R. The main body 32 is formed with an upstream space 32S partitioned by a portion of the longitudinal partition plate 32L located on the lower side Z2 of the transverse partition plate 32M, and right and lower portions of the outer wall 32J. The upstream space 32S is a substantially semicircular space that bulges toward the lower side Z2 when viewed from the back, and is located on the lower side Z2 of the arrangement space 32R via the lateral partition plate 32M, and communicates with the discharge port 20D from the rear side Y2.

The main body 32 is formed with a vertical space 32T which is sandwiched by the left portion of the outer wall 32J and the vertical partition plate 32L from both sides in the left-right direction X and extends in the vertical direction Z in a slender manner. The vertical space 32T is blocked by the left end portion of the second vertical wall 32H from the front side Y1, and is blocked by the left end portion of the top wall 32B from the upper side Z1. The lower end of the vertical space 32T communicates with the upstream space 32S from the left side X2.

The cover 33 (see fig. 2) has a contour substantially conforming to the outer wall 32J and the top wall 32B of the main body 32 when viewed from the back, and is formed in a plate shape having a narrower width toward the lower side Z2. The cover 33 is provided with a plurality of locking portions 33A (see fig. 2) protruding from the outer edge thereof. Corresponding to the locking portions 33A, a plurality of second locking portions 32JC protruding from the outer peripheral surface are provided in a rear region of the outer peripheral surface of the outer wall 32J of the main body 32. Bolts (not shown) are inserted through insertion holes formed in the respective locking portions 33A and attached to screw holes 32JD provided in the rear end surfaces of the corresponding second locking portions 32JC. Thereby, the cover 33 is fixed to the main body 32 from the rear side Y2, and the duct 30 is completed (see fig. 2).

In the completed duct 30, the arrangement space 32R, the upstream space 32S, and the vertical space 32T provided on the rear surface side of the main body 32 are blocked by the cover 33 from the rear side Y2. The rear end of the vertical partition plate 32L is in contact with the front surface portion of the cover 33. Accordingly, the arrangement space 32R and the vertical space 32T arranged across the vertical partition plate 32L are partitioned. Since a gap Q (see fig. 4) exists between the rear end of the lateral partition plate 32M and the front surface portion of the cover 33, the arrangement space 32R and the upstream space 32S communicate with each other through the gap Q.

The connection hose 31 is, for example, a rubber cylinder, and its inner space is opened to the upper side Z1 and the lower side Z2. Between the upper end and the lower end of the connection hose 31, a snake belly portion 31A is provided. The lower end of the connection hose 31 is externally fitted to the upper connection portion 32D of the duct 30. The upper end of the connection hose 31 is connected to the housing 29 of the blower 21. The inner space of the connection hose 31 constitutes a part of the inner space of the rear portion 20B of the circulation path 20. By the elastic deformation of the bellows portion 31A, the transmission of the vibration of the outer tub 3 to the blower 21 during the washing and drying operation is suppressed.

The filter member 25 is formed in a thin plate shape in the front-rear direction Y. The filter member 25 has an overall shape of a rectangle having two sides inclined with respect to the horizontal direction H so as to be inclined downward toward the left side X2 and two other sides extending substantially perpendicularly in the up-down direction Z when viewed from the back, and is formed in a parallelogram in detail.

The filtering member 25 includes a frame 41, a drying filter 42, and a water supply cover 43. Block 41 has: a main body 41A having a substantially rectangular contour when viewed from the back; a pair of left and right vertical walls 41B protruding from the main body 41A toward the front side Y1; and a bottom wall 41C protruding from the lower end of the main body 41A toward the front side Y1, and the frame 41 is made of, for example, resin. The upper edge and the lower edge of the main body 41A are inclined with respect to the horizontal direction H so as to descend toward the left side X2. The right and left edges of the main body 41A extend substantially perpendicularly in the up-down direction Z. An opening 41D penetrating the body 41A in the front-rear direction Y is provided in almost the entire region of the body 41A in rear view. The main body 41A has a single or a plurality of longitudinal ribs 41E that slit the opening 41D. In the present embodiment, two vertical ribs 41E are arranged in the left-right direction X, and the opening 41D is equally divided by these vertical ribs 41E into three small openings 41DA arranged in the left-right direction X. Each small opening 41DA is formed in a rectangular shape in a longitudinal direction, and strictly speaking, in a parallelogram shape having two sides parallel to the upper and lower edges of the main body portion 41A.

The bottom wall 41C of the main body 41A is provided between the lower ends of the left and right vertical walls 41B, and is inclined with respect to the horizontal direction H along the lower edge of the main body 41A so as to descend toward the left side X2. A locking portion 41CA protruding from the bottom wall 41C toward the lower side Z2 is provided at the center portion of the bottom wall 41C in the left-right direction X. The locking portion 41CA is formed with an insertion hole 41CB penetrating the locking portion 41CA in the front-rear direction Y.

Fig. 4 is a perspective view of the duct 30 and the filter member 25 as seen from the rear side Y2. In fig. 4, the cover 33 of the duct 30 is not shown (the same applies to fig. 5 and 6 described later). The frame 41 also has a top wall 41F protruding from the upper edge of the main body 41A at least to the rear side Y2. The top wall 41F has: the main body 41FA is formed in a rectangular plate shape having a long dimension in the left-right direction X, and is disposed obliquely leftward and downward along the upper edge of the main body 41A; and an extension portion 41FB which is in a rectangular plate shape shorter than the main body portion 41FA and extends from the right end of the main body 41BA to the right side X1 in the horizontal direction H. A plurality of water supply ports 41G of the same shape and the same size are formed in the main body 41FA. In the present embodiment, 12 water supply ports 41G are provided. Each water supply port 41G extends linearly in the longitudinal direction, that is, in the up-down direction Z, and penetrates the main body 41FA. These water supply ports 41G are aligned at equal intervals in the left-right direction X along the upper end of the rear surface 41AB of the main body 41A.

The stoving filter 42 is in a state of covering the entire area of each small opening 41DA of the main body 41A. Although the drying filters 42 are separately provided in three corresponding to the respective small openings 41DA, in the present embodiment, the three separated drying filters 42 are regarded as one drying filter 42. Although the dry filter 42 is a mesh sheet attached to the main body 41A in the present embodiment, it may be a grid integrally formed with the main body 41A. Although the dry filter 42 is made of metal in the present embodiment, it may be made of resin as in the main body 41A. The rear surface portion of the drying filter 42 extending in the up-down, left-right direction is referred to as a vertical surface portion 42A. The longitudinal surface portion 42A of the drying filter 42 is arranged in the same plane as the rear surface 41AB of the main body portion 41A. The plurality of water supply ports 41G provided to the top wall 41F of the frame 41 are arranged along the longitudinal surface portion 42A of the drying filter 42 in the lateral direction, that is, in the left-right direction X, and face the longitudinal surface portion 42A from the upper side Z1.

The water supply cover 43 includes a main body 43A which is long and hollow in the left-right direction X, and a hollow connecting portion 43B which is connected to the main body 43A from the right side X1. The internal space 43AA of the body 43A is in communication with the internal space 43BA of the connection portion 43B. The connection portion 43B is provided with a tubular pipe portion 43C protruding from the connection portion 43B. Although fig. 4 illustrates the pipe portion 43C protruding toward the rear side Y2, the pipe portion 43C may protrude toward the right side X1 (see fig. 5). The inner space 43CA of the pipe portion 43C communicates with the inner space 43BA of the connecting portion 43B. The internal space 43AA of the body 43A, the internal space 43BA of the connecting portion 43B, and the internal space 43CA of the pipe portion 43C are integrated to constitute a flow path 43D in the water supply cover 43. The pipe portion 43C may be provided not in the connection portion 43B of the water supply cover 43 but in the extension portion 41FB (see fig. 5) of the top wall 41F of the frame 41, for example.

The water supply cover 43 covers the top wall 41F of the frame 41 from the upper side Z1, and is combined with the frame 41. In the thus completed filter member 25, the internal space 43AA of the main body portion 43A of the water supply cover 43 is blocked by the main body portion 41FA of the top wall 41F from the lower side Z2, and the internal space 43BA of the connecting portion 43B of the water supply cover 43 is blocked by the extending portion 41FB of the top wall 41F from the lower side Z2. The flow path 43D in the water supply cover 43 is connected from the upper side Z1 to all the water supply ports 41G formed in the top wall 41F. The top wall 41F and the water supply cover 43 covering the top wall 41F from the upper side Z1 constitute a water supply portion 50.

As shown in fig. 4, the filter member 25 is accommodated in the duct 30 by being fitted into the arrangement space 32R of the duct 30 from the rear side Y2. The bottom wall 41C of the frame 41 of the filter member 25 is carried by the transverse partition plate 32M of the duct 30, whereby the filter member 25 is positioned within the disposition space 32R. The locking portion 41CA of the bottom wall 41C is fitted into the slit 32P of the transverse partition plate 32M, and the bolt B2 is inserted through the insertion hole 41CB of the locking portion 41CA and is fitted into the screw hole 32Q of the slit 32P (see also fig. 3). Thereby, the filter member 25 in the arrangement space 32R is fixed to the duct 30. The locking portion 41CA may be provided at a position other than the bottom wall 41C of the frame 41.

In the frame 41 fixed to the filter member 25 of the duct 30, the bottom wall 41C, the right vertical wall 41B, and the left vertical wall 41B are in contact with the lateral partition plate 32M, the outer wall 32J, and the vertical partition plate 32L of the duct 30, respectively. Further, the main body portion 43A of the water supply cover 43 of the filter member 25 is in contact with the top wall 32B of the duct 30. Thus, the filter member 25 occupies almost the entire area of the arrangement space 32R of the duct 30, and is located in the duct 30 between the downstream space 32C and the midway space 32K and the upstream space 32S. When the entire circulation path 20 is observed, the stoving filter 42 in the filter member 25 is disposed on the take-out port 20D side of the heating unit 22 in the circulation path 20 (see fig. 1). The extension portion 41FB of the top wall 41F of the frame 41 and the connection portion 43B of the water supply cover 43 pass through the cutout 32JA (see fig. 3) of the outer wall 32J and are disposed on the right side X1 of the disposition space 32R.

The branch 26 branches from an upstream portion of the water supply path 4 closer to the faucet than the water supply valve 11, and is connected to a pipe portion 43C of the water supply cover 43. A water filling valve 27 is provided in the branch 26 (see fig. 1). The water filling valve 27 is opened and closed to supply water flowing from the water supply path 4 to the branch path 26 to the pipe portion 43C or to stop the supply. The opening and closing of the water filling valve 27 is controlled by the control unit 24 (see fig. 1). The water filling valve 27 is included in the water supply portion 50 described above.

During the drying process, hot air is generated and circulated by the air blowing portion 21 and the heating portion 22 as described above. The hot air passes from the outlet 20D to the return port 20E in the circulation path 20, and passes to the blower 21 while rising on the rear portion 20B in the middle thereof (see the arrow of the thick broken line in fig. 1). In the duct 30 constituting the rear portion 20B, the hot air rises from the take-out port 20D through the upstream space 32S, and passes through the stoving filter 42 of the filter member 25 toward the front side Y1. Then, the hot air reaches the downstream space 32C through the intermediate space 32K, rises inside the connection hose 31, and flows into the housing 29 of the blower 21 (see also fig. 2).

The vertical surface portion 42A of the drying filter 42 is disposed so as to face the upstream side of the circulation path 20, and captures foreign matter T such as broken threads from the hot air in the circulation path 20. As the drying process proceeds, a large amount of foreign matter T is caught and left on the longitudinal surface portion 42A. This can prevent foreign matter T from adhering to the heating portion 22 provided in the circulation path 20 so as to deviate from the take-out port 20D toward the downstream side from the drying filter 42.

After the drying process, that is, after the washing and drying operation is finished, the control part 24 opens the water filling valve 27. In this case, the control unit 24 may open both the water supply valve 11 and the water filling valve 27, and the water supply valve 11 may be provided on the upstream side of the tap in the water supply path 4 than the branching position of the branch 26. Water from the faucet flows into the flow path 43D from the pipe portion 43C of the water supply cover 43 via the water supply path 4 and the branch 26.

The water flowing into the flow path 43D flows out from the flow path 43D to the water supply ports 41G and is injected downward from the water supply ports 41G. The water discharged from each water supply port 41G flows down from the upper side Z1 to the upper end of the vertical surface portion 42A of the drying filter 42 and through the vertical surface portion 42A, as indicated by the thick dotted arrow. The foreign matter T adhering to the vertical surface portion 42A is peeled off from the vertical surface portion 42A by the water flowing through the vertical surface portion 42A, falls directly into the upstream space 32S of the duct 30, and reaches the outlet 20D. Since the vertical rib 41E extending in the direction in which the water or the foreign matter T falls is provided around the drying filter 42, the foreign matter T does not hang on the vertical rib 41E and falls smoothly. The duct 30 includes a guide portion 30A inclined toward the outlet 20D on an outer wall 32J or the like that partitions the upstream space 32S. In the duct 30, the guide portion 30A and the lower end portion of the vertical partition plate 32L of the main body 32 guide the foreign matter T and water to the take-out port 20D. The foreign matter T reaching the take-out port 20D falls from the take-out port 20D into the outer cylinder 3 and remains in the outer cylinder 3. The water sprayed from the water supply ports 41G to the vertical surface portion 42A falls into the outer tube 3 from the pipe 30 as well as the foreign matter T, and remains in the outer tube 3.

The vertical surface portion 42A of the drying filter 42 is directly exposed to the upstream space 32S constituting the circulation path 20. Therefore, when water is supplied from the water supply port 41G to the vertical surface portion 42A, the foreign matter T adhering to the vertical surface portion 42A falls off from the vertical surface portion 42A, quickly into the circulation path 20, and reaches the outer tube 3 from the outlet 20D.

When a predetermined time has elapsed after the water filling valve 27 is opened, the control unit 24 closes the water filling valve 27 to stop the water supply to the water supply unit 50 and opens the drain valve 12. In a state where the water filling valve 27 is opened, the water discharging valve 12 may be always in an opened state. When the drain valve 12 is opened, the water remaining in the outer tube 3 flows into the drain passage 5 with the foreign matter T. That is, the foreign matter T is removed from the outer tube 3 when the outer tube 3 is drained. The foreign matter T flowing into the drain passage 5 is captured by the drain filter 6 (see fig. 1). The foreign matter T trapped by the drain filter 6 is removed when the user removes the drain filter 6 at an appropriate timing for maintenance.

As described above, in the washing and drying integrated machine 1, the water supply unit 50 supplies water from the upper side Z1 to the vertical surface portion 42A of the drying filter 42 at a predetermined timing. That is, the washing and drying integrated machine 1 has an automatic cleaning function of the drying filter 42 by water. Further, the washing and drying integrated machine 1 has an automatic cleaning function of the drying filter 42 by the scraping mechanism 60, which will be described later. Fig. 5 is a perspective view of the duct 30, the filter member 25, and the scraping mechanism 60 from the right rear side. The scraping mechanism 60 includes a stay 61 fixed to the pipe 30, and a scraper 62 and an actuator 63 fitted to the stay 61.

The stay 61 is plate-shaped, is fixed to, for example, a right portion of the outer wall 32J of the main body 32 of the pipe 30, and is disposed so as to protrude from the main body 32 to the right side X1. The left end portion of the stay 61 is disposed from the rear side Y2 so as to face the lower end portion of the right end portion of the vertical surface portion 42A of the drying filter 42.

The scraper 62 is a linear rod, and is disposed between the vertical surface portion 42A of the drying filter 42 and the left end portion of the stay 61 in the front-rear direction Y. In the front surface portion of the scraper 62, a brush 64 is provided over almost the entire area in the long-dimension direction thereof. The brush 64 is made up of a large number of bristles 64A implanted in the scraper 62. Instead of the brush 64, a blade (not shown) made of rubber or the like may be provided to the scraper 62. The scraper 62 is shown in fig. 5 in a vertical waiting position. The scraper 62 located at the waiting position is in a state of overlapping the right end portion of the vertical surface portion 42A of the drying filter 42 when viewed from the back, and the brush 64 is in a state of contacting the right end portion of the vertical surface portion 42A from the rear side Y2. The dimension of the brush 64 in the up-down direction Z at this time is slightly smaller than the dimension of the vertical portion 42A in the up-down direction Z. The scraper 62 positioned at the waiting position may be disposed on the right side X1 of the right end portion of the vertical surface portion 42A so as not to overlap the vertical surface portion 42A when viewed from the rear. In short, the wiper 62 located at the standby position is located at a position that does not affect the capturing of the foreign matter T by the longitudinal surface portion 42A. The root portion of the scraper 62 at the standby position, which constitutes the lower end portion, is coupled to the stay 61 via a rotation shaft 65 extending in the front-rear direction Y and penetrating the left end portion of the stay 61. The wiper 62 is rotatable about the rotation shaft 65 with the rotation shaft 65.

One example of an actuator 63 is an electric motor. The operation of the actuator 63 is controlled by the control unit 24 (see fig. 1). The actuator 63 is disposed on the right side X1 of the main body 32 of the duct 30, that is, outside the duct 30, and is fixed to the right end portion of the stay 61 from the front side Y1. The actuator 63 has an output shaft 66 penetrating the right end portion of the stay 61. The scraping mechanism 60 includes an input gear 67 fixed to the rear end portion of the rotating shaft 65 of the scraper 62, and an output gear 68 fixed to the rear end portion of the output shaft 66. The input gear 67 and the output gear 68 are spur gears, and may be directly engaged with each other or may be coupled via a single or a plurality of relay gears 69 as shown in fig. 5. When the actuator 63 is operated, the output shaft 66 rotates with the output gear 68, and the rotation is transmitted to the input gear 67 via the relay gear 69, so that the input gear 67 rotates with the wiper 62 and the rotating shaft 65 around the rotating shaft 65.

Fig. 6 is a rear view of the body 32 of the duct 30, the filter member 25, and the scraping mechanism 60. The wiper 62 is rotatable between a waiting position shown by a solid line and a wiping position shown by a two-dot chain line. The scraping position is a position where the scraper 62 rotates counterclockwise, for example, by 120 degrees when viewed from the back of the waiting position. The scraper 62 located at the scraping position overlaps the lower portion of the longitudinal surface portion 42A of the drying filter 42 as viewed from the back. The scraper 62 located at the scraping position may be disposed on the lower side Z2 of the longitudinal surface portion 42A of the drying filter 42. The scraper 62 moves along the longitudinal surface portion 42A so as to scrape almost the entire area of the longitudinal surface portion 42A of the drying filter 42 with the brush 64 when rotated between the waiting position and the scraping position by receiving the driving force of the actuator 63. In the scraping mechanism 60, at least the scraper 62 is disposed in the disposition space 32R in the duct 30 in a state where the duct 30 is completed by combining the main body 32 and the cover 33.

During the drying process, the control part 24 reciprocates the scraper 62 a plurality of times between the waiting position and the scraping position. Thereby, the foreign matter T trapped by the drying filter 42 during drying and remaining on the vertical surface portion 42A is scraped off from the vertical surface portion 42A by the scraper 62 reciprocating along the vertical surface portion 42A. The foreign matter T peeled off from the vertical surface portion 42A falls into the circulation path 20 as described above and reaches into the outer tube 3 from the outlet 20D, and is removed from the outer tube 3 when the outer tube 3 is drained. The mesh size of the brush 64 of the scraper 62 is set to be larger than that of the drying filter 42 so that the brush bristles 64A of the brush are not caught by the mesh size of the drying filter 42.

When the drying process is finished, as described above, the control section 24 supplies water from the upper side Z1 to the longitudinal section 42A of the drying filter 42 through the water supply section 50. The water supply lasts for, for example, 1 minute. The foreign matter T adhering to the vertical surface portion 42A is peeled off from the vertical surface portion 42A by the water supply.

It is assumed that the scraper 62 reciprocates to scrape the foreign matter T off the longitudinal surface portion 42A during the drying process, so that the foreign matter T adheres to the scraper 62, that is, the scraper 62 itself becomes dirty. Therefore, after the end of the drying process, the control section 24 moves the wiper 62 to the wiping position by the actuator 63 while continuing to supply water to the vertical surface section 42A by the water supply section 50, and stops at the wiping position, thereby performing maintenance processing of the wiper 62. By rotating the scraper 62 thereat, the foreign matter T remaining on the longitudinal surface portion 42A is scraped off. Then, by supplying water from the water supply portion 50, the foreign matter T adhering to the scraper 62 can be removed from the scraper 62 by the force of the water flowing through the vertical surface portion 42A (see the arrow of the thick two-dot chain line in fig. 6). Thus, the user need not maintain either the drying filter 42 or the scraper 62. Thus, maintenance can be improved. When the water supply for 1 minute by the water supply section 50 is completed, the control section 24 rotates the wiper 62 and returns to the standby position. Thereby, the maintenance process ends. The time required for the wiper 62 to rotate from the standby position to the wiping position and return to the standby position is about 6 seconds.

As described above, since the washing and drying integrated machine 1 has the automatic cleaning function of the drying filter 42 by the water and the scraper 62, the user does not need to detach the drying filter 42 for maintenance. Thus, maintenance of the drying filter 42 can be improved. Since the drying filter 42 may be non-detachable, a simplified construction and a reduced cost can be achieved than a detachable drying filter. In addition, in the case of the detachable dry filter, if the user forgets to maintain, the above-described performance degradation phenomenon may occur, and the washing and drying integrated machine 1 having the automatic cleaning function can avoid the performance degradation caused by forgetting to maintain. Further, since the arrangement space required for the removable dry filter can be used for other purposes, the performance can be improved by, for example, enlarging the heating unit 22 and the rotary vane 23.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope described in the claims.

For example, the actuator 63 for moving the wiper 62 is not limited to the electric motor described above, and a solenoid or the like may be used. As a mechanism for transmitting the driving force generated by the actuator 63 to the wiper 62, a mechanism other than the gear transmission mechanism using the input gear 67, the output gear 68, and the relay gear 69 described above can be exemplified. As an example of this structure, pulleys are mounted on the rotation shaft 65 of the scraper 62 and the output shaft 66 of the actuator 63, respectively, and these pulleys are connected by a wire. The wire is pulled out after being wound around a pulley of the rotation shaft 65 of the scraper 62, for example, around a half-cycle, and is connected to a biasing member such as a spring. The driving force generated by the actuator 63 is transmitted to the wiper 62 via the wire, so that the wiper 62 rotates from the standby position to the wiping position. The scraper 62 is rotated from the scraping position to the waiting position by the urging force of the urging member to be retracted which is extended at this time.

For example, although the scraper 62 is rotatable between the waiting position and the scraping position in the above-described embodiment, it may be linearly moved in the up-down direction Z or the left-right direction X, for example, while maintaining the same posture, thereby scraping the foreign matter T on the longitudinal surface portion 42A of the drying filter 42. When the scraper 62 moves linearly in the up-down direction Z, the scraper 62 takes a horizontally long posture, a waiting position is set on the upper end side of the vertical surface portion 42A, and a scraping position is set on the lower end side of the vertical surface portion 42A. When the scraper 62 moves linearly in the left-right direction X, the scraper 62 takes a vertically long posture, the waiting position is set to one of the left end side and the right end side of the vertical surface portion 42A, and the scraping position is set to the other of the left end side and the right end side of the vertical surface portion 42A.

In the above-described embodiment, the vertical surface portion 42A of the drying filter 42 is disposed longitudinally so as to face the outlet 20D side of the circulation path 20, that is, the upstream side, but the vertical surface portion 42A may be disposed in the vertical direction or may be disposed obliquely to the vertical direction.

The foreign matter T removed from the vertical surface portion 42A of the drying filter 42 and the water sprayed onto the vertical surface portion 42A are led from the outlet 20D of the circulation path 20 to the drain path 5 via the outer tube 3 in the above-described embodiment. Alternatively, a release hole 32U (see fig. 5) may be provided at a lower end portion of the outer wall 32J of the main body 32 of the pipe 30, which is located on the lower side Z2 of the vertical surface portion 42A, and a portion of the drainage path 5, for example, on the upstream side of the drainage filter 6 may be connected to the release hole 32U through the flow path 100. Thus, the foreign matter T and water in the pipe 30 can reach the drain passage 5 from the release hole 32U and the flow passage 100 without passing through the outer tube 3. This prevents foreign matter T and water from adhering to the laundry L in the washing tub 7.

In the washing and drying integrated machine 1, the drain filter 6 may be omitted. In this case, the foreign matter T caught by the respective drying filters 42 and flowing into the outer tub 3 is discharged to the outside of the machine body through the water discharge passage 5 (refer to fig. 1) when the outer tub 3 is discharged.

As a part of the maintenance process, the control unit 24 stops the water supply from the water supply unit 50 to the drying filter 42, and then circulates the air in the outer tub 3 by the blower 21. Thus, the drying filter 42, which has been sprayed with water before to remove the foreign matter T, is dried by being blown with the air flowing from the outer tube 3 into the circulation path 20. The hot air may be circulated by operating the heating unit 22, so that the drying of the drying filter 42 may be promoted. Thus, the user can avoid the need to dry the drying filter 42, and thus, the maintainability of the drying filter 42 can be further improved.

In the drum-type washing and drying integrated machine 1 according to the above embodiment, the washing drum 7 may be disposed so that the axis J is inclined with respect to the horizontal direction H. Further, the washing and drying integrated machine 1 may be a vertical washing and drying integrated machine in which the axis J extends longitudinally.

Claims

1. The utility model provides a washing and drying all-in-one which characterized in that includes:

A case;

an outer cylinder supported by the tank body and capable of storing water;

a washing cylinder which is accommodated in the outer cylinder and accommodates washings;

a circulation path having a take-out port and a return port connected to the outer tube;

an air supply unit configured to circulate air in the outer tube by taking the air out of the take-out port into the circulation path and returning the air from the return port into the outer tube;

a heating unit provided in the circulation path and configured to heat air in the circulation path;

a drying filter which is disposed on the side of the take-out port with respect to the heating portion in the circulation path, and which has a vertical surface portion for capturing foreign matters in the air passing from the take-out port to the return port in the circulation path; the periphery of the drying filter is provided with a longitudinal rib extending along the falling direction of the foreign matters;

a water supply unit for supplying water to the longitudinal surface unit from above;

a scraper movable along the longitudinal surface portion; and

an actuator to move the scraper;

further comprises:

a control unit for controlling the water supply unit and the actuator,

the control section moves the scraper to a lower portion of the longitudinal section by the actuator and supplies water to the longitudinal section from an upper side by the water supply section to perform maintenance processing;

Further comprises:

a duct that accommodates the drying filter as a part of the circulation path and has a release hole formed at a lower side of the longitudinal surface portion; the duct includes a main body and a cover, and has a guide portion inclined toward the take-out port;

a water discharge path for discharging water in the outer tub; and

and a flow path connecting the release hole and the drainage path.