JP2002360992A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a effective circulation fan in a circulation air passage. SOLUTION: Air passage ducts 25 and 27 are integrally formed with a peripheral side of an outer tub 5. The circulation fan 26 is provided with a suction port 51a and a blow-out port 51b, and fitted to the outer tub 5 to fit the suction port 51a and the blow-out port 51b in the air passage ducts 25 and 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a washing and drying machine.

[0002]

2. Description of the Related Art An outer tub is installed so as to be suspended in an outer frame by an anti-vibration support device. There has been proposed a washing and drying machine to which means for circulating air inside and drying the laundry in the washing and dewatering tub is added.

[0003] The drying means of this washing and drying machine is characterized in that the air sucked from a suction port formed in the lower part of the outer tub by a circulation fan is dehumidified by water cooling in an air passage leading to the circulation fan, and the dehumidified air is heated by a heater. The structure is such that the air is blown into the upper opening of the washing and dewatering tub from the blowing port.

[0004]

This type of washing and drying machine has a structure in which a drying means is added to the washing machine, and has a problem that the structure becomes complicated.

[0005] One object of the present invention is to propose a washing and drying machine capable of rationally installing a circulation fan in a circulation air passage.

[0006]

SUMMARY OF THE INVENTION According to the present invention, air in the outer tub is sucked from a suction port provided at a lower portion of the outer tub containing the washing and dewatering tub, and the sucked air is supplied to the upper portion of the washing and dewatering tub. In a washing and drying machine for forming a circulating air path for blowing into the washing and dewatering tub from a blowing port provided to face the opening to dry the laundry in the washing and dewatering tub, the circulating air path includes:
An air passage duct integrally formed with the outer tub is provided on the outer peripheral side of the outer tub, and a circulating fan installed in the circulating air passage to generate circulating air is sucked by being attached to a lower side of the outer tub. The mouth and the outlet are configured to fit into the air duct.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to an outer tub having a washing and dewatering tub provided inside, and a suction port provided at a lower portion of the outer tub to suck air in the outer tub and to discharge the sucked air to the washing tub. A circulating air passage that blows into the washing and dewatering tub from a blowing port provided facing an upper opening of the tandem dewatering tub; And a heating means for heating the circulated air, wherein the circulating air path includes an air path duct formed integrally with the outer tub on an outer peripheral side of the outer tub,
A circulating fan installed in the circulating air passage to generate circulating air has a suction port and a blow-out port, and is formed so as to surround the suction side of the impeller in an open manner, and is formed under the outer tank. And a suction-side casing attached to the outer tub so as to be positioned on the side of the container, and a suction-side casing that covers an opening of the blow-side casing and forms an air passage from the suction port to the suction side of the impeller. It can be implemented in a configuration.

The outlet side casing is formed such that the suction port and the outlet are fitted to the lower end of the air duct in a state where the outlet side casing is attached to the lower side of the outer tank. It is desirable to have a configuration. This fitting is desirably performed by providing a fitting groove and a ridge on the peripheral portion of the blowout side casing and the suction side casing.

Further, it is desirable that the electric motor for driving the impeller be mounted on the outlet side casing.

It is preferable that a partition plate for partitioning between the suction side and the discharge side of the impeller be sandwiched between the discharge side casing and the suction side casing.

It is preferable that the suction side casing has a drain outlet.

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view showing a vertical section of a washing and drying machine according to an embodiment of the present invention.

Reference numeral 1 denotes a rectangular cylindrical outer frame constituting an outer shell. Reference numeral 2 denotes a washing and dewatering tub, which has a small hole 2a for water and air ventilation on its peripheral wall, a fluid balancer 3 on its upper edge, and a rotatable stirring blade 4 inside the bottom. I do. The stirring blade 4 has a small hole 4a for water flow and ventilation.
Having. Reference numeral 5 denotes an outer tub that contains the washing and dewatering tub 2. A drive device 6 is attached to the outer side of the bottom by a steel plate-attached base 7, and is fixed to four corners at the upper end of the outer frame 1. The outer tub 5 is evenly suspended from all sides by the anti-vibration support device 8 to support the outer tub 5 so as to be suspended from the center of the outer frame 1.

The drive unit 6 includes a drive motor, an electric operation clutch mechanism, and a planetary gear reduction mechanism.
The washing and dewatering tub 2 and the stirring blade 4 are integrally rotated by rotating the stirring blades 4 in a state in which the washing and dewatering is performed (the stirring mode), and rotating the washing and dewatering tub 2 and the stirring blades 4 in opposite directions (selection mode). Has a selective drive function of rotating in the same direction (dehydration / drying mode).

The top cover 9 formed with the outer garment inlet 9a is fitted to the opening edge so as to cover the upper opening of the outer frame 1, and is attached to the outer frame 1 together with the front panel 10 and the back panel 11 by mounting screws.

A front panel box 12, which is a front storage portion formed between the top cover 9 and the front panel 10, has a power switch 13, an operation panel 14 having input switches and display elements, and an outer tank. The control unit 16 includes a water level sensor 15 that generates a water level signal corresponding to the water level in the control unit 5. These constitute a control device.

A back panel box 17 which is a rear storage portion formed between the top cover 9 and the back panel 11
, A washing water supply means and a high-concentration detergent liquid producing / supplying means, which will be described later, are incorporated side by side.

The washing water supply means includes a water tap connecting port 1 on an inlet side.
8 and a water supply side connected to a water inlet 19 by a main water supply solenoid valve 20.

The high-concentration detergent liquid generating / supplying means supplies the detergent dissolving water from the auxiliary water supply solenoid valve 22 to the detergent dissolving vessel 21 and agitates the powdery synthetic detergent charged in the detergent dissolving vessel 21 while stirring. Dissolved in detergent-dissolved water to produce a high-concentration detergent solution, overflowed from the detergent dissolution vessel 21 while diluting with additional water supply, supplied to the water injection port 19, and supplied to the detergent dissolution vessel 21 with a finishing agent charging chamber ( (The details will be described later.)
It is configured to be supplied to.

The water inlet 19 penetrates the bottom of the top cover 9 and the rear part of the outer tub upper cover 28 of the outer tub 5 so that the washing and dewatering tub 2
Opening into the upper opening of. The water inlet 19 is provided between the bottom of the top cover 9 and the outer tank upper cover 28 by a flexible tube 1.
9a (see FIG. 3).

The hot air circulating drying means is formed so as to extend vertically upward along a rear outer wall surface of the outer tub 5 from a suction port 5a formed in a lower side wall of the outer tub 5 and to perform the suction. A water-cooling dehumidifying duct 23 which is a dehumidifying air passage for blocking the washing water which has entered through the opening 5a; Part 24 and a descending wind which is a descending wind path which is folded back at a position higher than the water level of the outer tub 5 in the washing process and extends vertically along the outer wall surface of the outer tub 5 toward the lower side of the outer tub 5 A duct duct 25, a circulating fan 26 disposed in a space below the outer tub 5, and sucking air from the descending duct duct 25 into a suction port to generate circulating air. Up along the outer wall of tank 5 A rising air duct 27, which is a rising air passage extending vertically, and a circulating air which is installed on an outer tank upper cover 28 attached to an upper end of the outer tank 5 and is sent from the rising air duct 27. A heater (PTC heater) 29 serving as a heating means for heating, and a blowing port 3 for blowing heated circulating air into the washing and dewatering tub 2
0 is provided.

The water-cooled dehumidifying duct 2 constituting the circulation air passage
3, the downdraft duct 25 and the updraft duct 27
A part of the outer tub 5 is arranged on the outer wall surface on the rear side of the outer tub 5 in the circumferential direction, and a part of the outer tub 5 is formed integrally with the outer tub 5 and mounted. The back lid 1a covering the outside swells outward. Construct the shape and screw it.

A humidity sensor 40 and a first temperature sensor 41 are installed in the downdraft duct 25,
The second temperature sensor 42 is installed in the air path between the downstream side of the heater 29.

Although not shown in the drawings, the turn-back portion from the water-cooled dehumidifying duct 23 to the descending air duct 25 is provided with a lint collecting means described later.

The outer garment inlet 9a formed in the top cover 9 has a hinge 31a so that it can be folded in two (mountain fold).
The inner garment insertion opening 28a formed in the outer tub upper cover 28 attached to the upper end of the outer tub 5 is covered with a hinge 32.
As shown in FIG. 2A, the inner cover 32 attached to the outer tank upper cover 28 is configured to be openably and closably covered.

A drain port 5 b formed at the bottom of the outer tank 5 is connected to a drain hose 34 via a drain solenoid valve 33. The air trap 5c is connected to the water level sensor 15 via an air tube 35. A base 37 made of a synthetic resin having legs 36 attached to four corners is attached to the lower edge of the outer frame 1. Reference numeral 38 denotes the laundry put into the washing and dewatering tub 2.

In this washer / dryer, the power switch 13 is turned on, the outer lid 31 and the inner lid 32 are opened, the laundry 38 is put into the washing / dewatering tub 2, and the outer lid 31 and the inner lid 32 are closed. When the washing start switch on the operation panel 14 is turned on, the control unit 16 detects the amount of cloth by operating the driving device 6 and rotating the agitating blades 4 with the washing and dewatering tub 2 stationary, thereby detecting the amount of washing water. And a corresponding amount of detergent is determined, and the display element group 14b of the operation panel 14 is controlled so as to display the determined amount.

Then, when the outer lid 31 is opened, a corresponding amount of the powdered synthetic detergent and the finishing agent are put into the detergent dissolving container 21, and when the outer lid 31 is closed, the auxiliary water supply electromagnetic valve 22 is opened to open the powdered synthetic detergent. A suitable amount of tap water (detergent dissolving water) is supplied to the detergent dissolving container 21 to dissolve the powdery synthetic detergent, and the high-concentration detergent solution is dissolved by operating the detergent stirring motor 39 while stirring. Generate.

During this time, the main water supply solenoid valve 20 is opened and water is supplied by controlling the driving device 6 to slowly rotate the washing / dewatering tub 2 and the stirring blade 4 to rotate the laundry 38, thereby supplying tap water. The laundry 38 is evenly lowered and wetted. At this time, the amount of water supply is controlled so that the laundry 38 is stopped to such an extent that the laundry 38 can be uniformly wetted.

Next, the auxiliary water supply electromagnetic valve 22 is opened to supply additional water to the detergent dissolving container 21, thereby overflowing the high-concentration detergent liquid in the detergent dissolving container 21 and supplying the same to the water inlet 19 and the main water supply port. By opening the solenoid valve 20 and supplying the water to the water inlet 19, the high-concentration detergent solution is supplied to the desired detergent concentration (5 to 5).
(The range of 30 times) and control so as to fall on the laundry 38. At this time, the washing and dewatering tub 2 and the stirring blade 4 are integrally and slowly rotated so that the high-concentration detergent liquid uniformly falls on the laundry 38 and is uniformly immersed in the laundry 38. The stirring blade 4 with the dewatering tub 2 stationary
The drive device 6 is controlled so as to rotate or agitate the laundry 38 by rotating.

As described above, when the high-concentration detergent solution, which is formed by dissolving the powdery synthetic detergent in water and further diluted to a concentration of 5 to 30 times, is immersed in the laundry 38, the chemical detergency of the detergent component is increased. It acts efficiently on the stains on the laundry 38 to increase the detergency.

After the high-concentration detergent liquid is submerged in the laundry 38, the main water supply solenoid valve 20 and the auxiliary water supply solenoid valve 22 are controlled so as to supply the washing water to a predetermined water level. The driving device 6 is controlled so as to execute a washing process in which the dehydration tub 2 and the stirring blade 4 are rotated forward and backward in opposite directions to apply a mechanical force to the laundry 38.

After the washing process is completed, the drainage solenoid valve 33 is controlled to open so that the washing water is drained out of the machine, and the washing and dewatering tub 2 and the stirring blade 4 are integrally rotated at a high speed to wash the washing water. The driving device 6 is controlled so as to perform intermediate dehydration for centrifugal dehydration. After the completion of the intermediate dehydration, the drainage electromagnetic valve 33 is controlled to close, the main water supply electromagnetic valve 20 is controlled so as to supply water to a predetermined rinsing water level, and the washing and dewatering tub 2 and the stirring blade 4 are further controlled. The driving device 6 is controlled so as to perform a rinsing step of rotating the laundry 38 by applying a mechanical force to the laundry 38 by rotating the laundry forward and backward in opposite directions. This rinsing step is performed multiple times as necessary,
At the time of water supply in the last rinsing, the auxiliary water supply electromagnetic valve 22a is opened to supply the finishing agent.

After the rinsing step is completed, the drain solenoid valve 33 is controlled to open so that the rinsing water is drained out of the machine. After draining, the washing and dewatering tub 2 and the stirring blade 4 are integrally rotated at a high speed. The driving device 6 is controlled so as to perform final dehydration in which rinsing water is centrifugally dehydrated.

The driving device 6 is configured to rotate the washing / dewatering tub 2 and the stirring blade 4 integrally or in opposite directions so that the laundry 38 thus washed and centrifugally dehydrated is dried in the washing / dewatering tub 2. The circulating fan 26 is controlled so as to generate circulating air that sucks out the humid air in the outer tub 5 and the washing and dewatering tub 3 from the suction port 5a and blows it into the washing and dewatering tub 2 from the blowing port 30. A hot air drying step of controlling the water spray solenoid valve 24a of the cooling water sprinkling unit 24 so as to water-cool the circulating air in the water-cooling dehumidifying duct 23, and controlling the heater 29 to heat the air blown into the washing and dewatering tub 2. Execute The control of the hot air drying process is performed by the humidity sensor 40, the first temperature sensor 41, and the second temperature sensor 42.
The monitoring is executed while monitoring the detection signal, and ends when a desired degree of drying is obtained.

2 to 4 show a specific structure of the washing and drying machine described above. FIG. 2 is a vertical sectional side view of the washing and drying machine, and FIG. FIG. 4 is a rear view of the washing and drying machine showing a road portion, and FIG. A part of the description overlapping with the description of FIG. 1 is omitted.

The rotary drive 6 is a reversible drive motor 6
1, electric operation clutch mechanism 62 and sun gear reduction mechanism 63
And a central output shaft 64 to which the washing and dewatering tub 2 are connected. The sun gear reduction mechanism 63 includes a carrier that supports the sun gear directly connected to the drive motor 61, the internal gear and the planetary gear directly connected to the outer output shaft 65, and is directly connected to the center output shaft 64. Then, by controlling the electric operation clutch mechanism 62 to the stirring mode, the inner gear (the outer output shaft 65) of the sun gear reduction mechanism 63 is controlled.
The rotation of the drive motor 61 is reduced through the sun gear, the planetary gears and the carrier and transmitted to the center output shaft 64 to rotate the stirring blade 4 in the normal and reverse directions in a state in which the stirrer 4 is rotated. By controlling the electric operation clutch mechanism 62 to the washing mode, the internal gear of the sun gear reduction mechanism 63 (connected to the outer output shaft 65 and the washing and dewatering tub 2) is set in a free rotation state, and the rotational force of the driving motor 61 is set. Is reduced via the sun gear, the planetary gears and the carrier and transmitted to the central output shaft 64, thereby rotating the stirring blade 4 in the forward and reverse directions, and transmitting the reaction force acting on the internal gear to the outer output shaft 65 to perform the washing. By rotating the dewatering tank 2 in the direction opposite to the stirring blade 4 and controlling the electric operation clutch mechanism 62 to the dehydration / drying mode, the sun gear and the internal gear of the sun gear reduction mechanism 63 are driven by the drive motor 6.
1 to directly connect the rotational force of the drive motor 61 to the central output shaft 6.
4 and the washing / dewatering tub 2 and the stirring blade 4 via the outer output shaft 65
To rotate them integrally.

The vertical portion of the water-cooling and dehumidifying duct 23 in the circulation air passage is located at the last part of the cylindrical outer tank 5, that is, at the part closest to the back lid 1 a of the outer frame 1.
Is formed continuously from the peripheral edge of the suction port 5a on the side wall of the outer tub 2 by molding along the side wall. The water-cooled dehumidifying duct 23 is formed in a rectangular air path cross-sectional shape having a reduced depth and a wider width so as to be suitable for being disposed in a narrow space between the outer tub 2 and the rear lid 1a. Since the water cooling / dehumidifying duct 23 having a wide and substantially rectangular air path cross section has a wide wall surface, the number of circulating air cooling wall surfaces increases, and thus is suitable for cooling and dehumidifying circulating air.

The vertical portion of the descending air duct 25 is formed integrally with the side wall of the outer tub 5 so as to be adjacent to the water-cooling dehumidifying duct 23 and to be a common side wall with the water-cooling dehumidifying duct 23. This position is separated from the back lid 1a by the curvature of the outer tub 5, so that the cross-sectional shape of the air path is formed to have a substantially square shape with an increased depth and a reduced width, thereby suppressing the expansion of the horizontal width of the circulation air path. The configuration is as follows.

The vertical portion of the rising air duct 27 is located next to the water-cooling dehumidifying duct 23 on the side next to the water-cooling dehumidifying duct 23.
3 is formed by integral molding on the side wall of the outer tub 5 so as to form a common side wall. This position is separated from the back lid 1a by the curvature of the outer tub 5, so that the cross-sectional shape of the air path is formed to have a substantially square shape with an increased depth and a reduced width, thereby suppressing the expansion of the horizontal width of the circulation air path. The configuration is as follows.

The outer surface of each of the ducts 23, 25, 27 integrally formed on the rear side wall of the outer tub 5 along the rear side wall of the outer tub 5 is formed by the rear side lid 1a constituting the rear side wall of the outer frame 1. It is formed in a substantially linear shape so as to face the inside of the bulging portion at a predetermined interval. The outer tub 5 is uniformly suspended from four sides by four anti-vibration supporting devices 8 locked to reinforcing members 1b connected to the four corners at the upper end of the outer frame 1. It is supported so as to be suspended at the center of the frame 1.

An upper folding member 44 for connecting a vertical portion of the water-cooled dehumidifying duct 23 and an upper end of the descending air duct 25.
Is arranged so as to protrude to the rear of the upper surface of the outer tank upper cover 28 attached to the upper end of the outer tank 5, and to accommodate the lint filter 45 constituting the lint collecting means obliquely from above the inner lid 32 so as to be able to be inserted and removed. I do.

A blowing port 30 communicating with the upper end of the vertical portion of the rising air duct 27 protrudes from the rear of the upper surface of the outer tank upper cover 28 and has a heater 29 built therein.
The outer tub upper cover 28 is pierced so that the heated circulating air is blown into the washing and dewatering tub 2 in a direction opposite to the rotation direction of the washing and dewatering tub 2, so that the heated circulating air passes through the opening of the washing and dewatering tub 2. Face and open. The heater 29 employs a PTC heater, and is installed obliquely so that the ventilation path is inclined in the vertical direction to reduce the height of the air inlet 30, thereby suppressing an increase in the height of the body.

The outer tank upper cover 28 has a two-layer structure in which a lower resin molded member and an upper metal plate (stainless steel plate) are superimposed. The part is integrally formed with the resin molding member 28.
The metal plate functions as a reinforcing and heat-resistant member.

The circulating fan 26 includes a centrifugal impeller 54 and an electric motor 5 for rotating the centrifugal impeller 54, which will be described in detail later.
5 and a blow-out side casing 5 surrounding the centrifugal impeller 54
1 is provided with a suction side casing 52 and attached to the lower side of the bottom of the outer tub 5 so that the outer tub 5
The driving device 6 is arranged in a space formed below the rear side so as to be located on the rear side. The suction side casing 52 has a drain outlet 52b. The circulation fan 26 is connected to lower end portions of the descending air duct 25 and the rising air duct 27.

FIG. 5 shows the outer tank 5 and each duct 23,
It is a perspective view which shows the integrated form of 25,27.

The vertical portions of the outer tub 5 and the ducts 23, 25, 27 are integrally formed of synthetic resin. The lower ends of the downdraft duct 25 and the updraft duct 27 are molded in an open state, and the circulating fan 26 is attached to the lower side of the outer tub 5. The lower end of the duct 25 and the lower end of the rising duct 27 are fitted.

Next, the circulation fan 26 will be described with reference to FIGS. FIG. 6 is a vertical sectional side view of the circulation fan, showing a part of the parts disassembled, FIG. 7 is a vertical sectional side view showing the disassembly of the circulation fan, and FIG. 8 is an inner surface of the blowout side casing, the partition plate and the suction side casing. FIG.

The circulation fan 26 includes a blow-off casing 51, a suction-side casing 52, and a partition plate 53.
, A centrifugal impeller 54 and an electric motor 55.

The outlet casing 51 has a suction port 51a, a blow port 51b, an impeller chamber 51c for accommodating the centrifugal impeller 54, and a communication between the impeller chamber 51c and the outlet 51b. Air outlet 5
1d, a motor mounting portion 51e, a mounting leg portion 51f to the outer tub 5, and a suction side casing screw connection portion 51g.
And a peripheral fitting groove 51h for fitting the suction side casing 52 in an airtight state. The suction port portion 51a is a tubular portion that extends upward and penetrates the air path, and has an upper end formed in a form to be fitted to a lower end of a descending air path duct 25 formed in the outer tub 5. The outlet portion 51b is a cylindrical portion extending upward and penetrating the air passage, and the upper end thereof is
The lower end opening is formed so as to be fitted to the lower end of the rising air duct 27 formed in the outer tub 5, and the lower end opening is communicated with the impeller chamber 51c through the blowing air duct 51d, and is opened downward together with these. . The motor mounting portion 51e is formed so as to be positioned above and outside the impeller chamber portion 51c, and the rotating shaft 55a of the electric motor 55 attached to the motor mounting portion 51e penetrates through the impeller chamber portion 51c to form the impeller chamber. In this configuration, the centrifugal impeller 54 installed in the portion 51c is attached so as to fit. A plurality of mounting legs 51f are provided around the motor mounting portion 51e and are screwed to the bottom of the outer tub 5 from below so that the motor 55 does not abut against the bottom of the outer tub 5. It is.

The suction side casing 52 includes a suction air passage 52a, a drain outlet 52b formed in the suction air passage 52a, a blow air passage cover 52c, a screw connection 52d, and a peripheral fitting projection. 52e. Then, the suction-side casing 52 is attached to the lower side of the blow-out side casing 51 with the partition plate 53 interposed therebetween.
The suction air passage 52a communicates the suction opening 51a and the suction side of the centrifugal impeller 54 by screwing the screw connection portions 51g and 52d together so that 2e is fitted into the peripheral fitting groove 51h. A suction air path is formed, and the blowing air path covering part 52c is formed as a blowing air path part 51d.
And the outlet side of the centrifugal impeller 54 and the outlet 5
1b is formed as a blow air path.

The partition plate 53 has a suction opening 53.
The suction opening 53a is located between the impeller chamber 51c and the suction air passage 52a so that the suction opening 53a faces the suction side of the centrifugal impeller 54 so as to separate the air passages on the suction side and the discharge side. Partition into

The circulation fan 26 is assembled by inverting the outer tub 5 and stacking the outer tub 5 with the bottom thereof facing upward. Specifically, the electric motor 55 is connected to the electric motor mounting portion 52e of the blowout side casing 51.
And screw it on. The blowout side casing 51 to which the electric motor 55 is attached is turned upside down,
1f is screwed according to the mounting seat of the outer tank 5. At this time, the suction port 51a is fitted to the lower end of the downward air duct 25 facing upward,
b is a state fitted to the lower end of the upward air duct 27 facing upward. Thereafter, the centrifugal impeller 54 is mounted on the rotating shaft 55a and installed in the impeller chamber portion 51c, and then the partition plate 543 is placed thereon. The assembly and installation are completed by screwing the 51g and 52d together.

The circulating fan 26 can be modified so as to be attached to the bottom of the outer tank 5 after assembling in a single state in advance. Specifically, the circulating fan is provided by projecting the mounting leg portion 51f at a position protruding from the outer periphery, and assembling the electric motor 55, the centrifugal impeller 54, the partition plate 53, and the suction side casing 52 based on the blowout side casing 51. 26 is assembled in a single state, and is attached to the bottom of the outer tub 5 by the attachment leg 51f, so that the inlet port 51a and the outlet port 51b are deformed and fitted to the air ducts 25 and 27. You can also.

As described above, the circulation fan 26 can be assembled and attached so as to be connected to the circulation air path with a small number of parts, so that a rational installation is possible.

[0056]

According to the present invention, the circulation fan can be rationally installed in the circulation air passage.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an embodiment of a washing and drying machine according to the present invention.

FIG. 2 is a vertical sectional side view showing a specific configuration of the washing / drying machine according to the present invention.

FIG. 3 is a rear view of the washing and drying machine shown in FIG.

FIG. 4 is a bottom view showing a part of the washing and drying machine shown in FIG. 2 in a cutaway manner.

FIG. 5 is a perspective view of an integrally formed outer tub and each duct of the washing and drying machine shown in FIG. 2;

FIG. 6 is a vertical sectional side view of a circulation fan showing a part of the parts in an exploded state.

FIG. 7 is a vertical sectional side view showing a disassembled circulation fan.

FIG. 8 is an inner view of the outlet side casing, the partition plate, and the suction side casing.

[Explanation of symbols]

1 ... outer frame, 2 ... washing and dewatering tank, 4 ... stirring blade, 5 ... outer tank,
5a: suction port, 6: drive unit, 23: water-cooled dehumidification duct, 25: descending air duct, 26: circulation fan, 27 ...
Ascending air duct, 51 ... outlet side casing, 51a
... Suction port part, 51b ... Blow-out part, 51c ... Iller impeller room part, 51d ... Blow-out air path part, 51e ... Motor motor mounting part, 51f ... Mounting leg part, 51g ... Screw connection part, 51
h: peripheral edge fitting groove, 52: suction side casing, 52a
... Suction air path part, 52b ... Drain discharge port, 52c ... Outflow air path cover part, 52d ... Screw connection part, 52e ... Peripheral fitting projection, 53 ... Partition plate, 54 ... Centrifugal impeller, 55 ...
Electric motor.

Claims (6)

[Claims] 1. An outer tub having a washing and dewatering tub installed therein, and air in the outer tub being sucked from a suction port provided at a lower portion of the outer tub, and the sucked air being opened at an upper opening of the washing and dewatering tub. A circulating air passage that blows into the washing and dewatering tub from a blowing port provided in front of the tub, a water-cooling dehumidifying unit that water-cools and dehumidifies the circulating air sucked from the outer tub into the circulating air passage, and heats the water-cooled and dehumidified circulating air. A washing / drying machine provided with a heating means, wherein the circulating air path includes an air path duct formed integrally with the outer tub on an outer peripheral side of the outer tub, and is provided in the circulating air path to supply circulating air. The generated circulation fan has a suction port and a discharge port, is formed so as to surround the suction side of the impeller in an open form, and is attached to the outer tank so as to be located below the outer tank. Blow-off side casing, Washing and drying machine characterized by comprising a suction side casing forming an air passage from the suction opening to the suction side of the impeller to cover the opening of the out side casing. 2. The blow-out casing according to claim 1, wherein the suction port and the blow-out port are fitted to a lower end of the air duct in a state where the blow-side casing is attached to a lower side of an outer tank. A washing / drying machine characterized by being formed so as to perform. 3. The washing and drying machine according to claim 1, wherein the blow-off casing and the suction-side casing are provided with a fitting groove and a ridge on a peripheral portion thereof. 4. The washing and drying machine according to claim 1, wherein the electric motor for driving the impeller is mounted on a blow-off side casing. 5. The washing and drying method according to claim 1, wherein a partition plate for partitioning between the suction side and the blowing side of the impeller is sandwiched between the blowing side casing and the suction side casing. Machine. 6. The washing and drying machine according to claim 1, wherein the suction side casing has a drain outlet.