JP2002369992A - Washing and drying machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a washing / drying machine capable of performing a reliable operation in a washing operation and a drying operation. A frame, an outer tub suspended from and supported by the frame, a washing and dewatering tub installed in the outer tub, a driving device for rotating and driving the washing and dewatering tub, A fan that sucks air in the outer tub from a suction port provided at a lower portion of the tank, a heating unit that heats air sucked from the outer tub, and a fan that sucks air sucked from the suction port. A washing / drying machine having a circulating air path for circulating into the outer tub according to (1), wherein all the circulating air paths are attached to the outer tub.

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 In a washing operation, a washing and drying machine performs a washing operation in which tap water (washing water) is supplied and then a stirring blade is rotated forward and reverse to apply mechanical force to washing clothes. A dehydration operation in which water (rinsing water) is supplied and a rinsing operation in which a mechanical force is similarly applied to the laundry is performed, and then the washing and dewatering tub is rotated to centrifugally dehydrate the rinsing water contained in the laundry. Run, and then,
This is a configuration in which a drying operation is performed in which hot air is supplied to the washing and dewatering tub to dry the laundry.

As a washing and drying machine for performing such a series of operations, Japanese Patent Application Laid-Open No. 11-347281 and Japanese Patent Application Laid-Open No.
47282 and JP-A-11-347296.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a washing / drying machine capable of performing a reliable operation in a washing operation and a drying operation.

[0005]

SUMMARY OF THE INVENTION The present invention comprises a frame, an outer tub suspended from and supported by the frame, a washing and dewatering tub installed in the outer tub, and a washing and dewatering tub. A driving device for rotationally driving, a fan for sucking air in the outer tub from a suction port provided in a lower portion of the outer tub, heating means for heating the air sucked from the outer tub, and the suction port And a circulating air passage for circulating the air sucked out from the fan into the outer tub by the fan, and all the circulating air passages are attached to the outer tub.

[0006]

The invention according to claim 1 of the present invention comprises a frame, an outer tub suspended from and supported by the frame, a washing and dewatering tub installed in the outer tub, A driving device that rotationally drives the washing and dewatering tub, a fan that sucks air in the outer tub from a suction port provided at a lower portion of the outer tub, and a heating unit that heats the air sucked from the outer tub. A washing / drying machine having a circulating air path for circulating air sucked from the suction port into the outer tub by the fan, wherein all of the circulating air paths are attached to the outer tub. It is.

[0007] According to this configuration, since all the circulation air passages are attached to the outer tub, the effects of imbalance can be reduced even when the washing and dewatering tub is rotationally driven, such as in a dehydration operation, and a highly reliable operation can be achieved. You can do it.

According to a second aspect of the present invention, there is provided a washing and drying machine according to the first aspect, wherein the fan is attached to a lower portion of the outer tub.

According to this configuration, in addition to the effect of the first aspect, the noise due to the fan can be reduced.

According to a third aspect of the present invention, in the first aspect, a part of the circulating air passage is constituted by a duct formed integrally with the outer tank, and the duct is provided with the suction port portion. A first duct formed so as to extend upward from the first duct, and a second duct and a third duct provided on the left and right of the first duct in parallel with the first duct. A washing and drying machine characterized in that the fan is attached to a lower part of the outer tub behind the device.

According to this structure, in addition to the effect of the first aspect, the noise due to the fan can be reduced, and the space below the outer tub can be effectively used.

Further, the invention according to claim 4 of the present invention is characterized in that the frame, an outer tub suspended from and supported by the frame, a washing and dewatering tub installed in the outer tub, A driving device that rotationally drives the dewatering tub, a fan that sucks air in the outer tub from a suction port provided in a lower part of the outer tub, and a heating unit that heats the air sucked from the outer tub, A water-cooling dehumidifier for water-cooling and dehumidifying the air sucked from the outer tank; and a circulating air passage for circulating the air sucked from the suction port into the outer tank by the fan. Part of the road is composed of a duct molded integrally with the outer tank,
The duct includes a first duct formed to extend upward from the suction port, and a second duct and a third duct provided on the left and right sides of the first duct in parallel with the first duct. One duct has a water-cooled dehumidifier, and the fan is attached to the lower part of the outer tub below the suction port and behind the driving device.

According to this configuration, since a part of the duct of the circulation air path is formed integrally with the outer tub, the influence of imbalance can be reduced even when the washing and dewatering tub is rotated in the dehydrating operation. It is possible to perform a highly reliable operation and return the water condensed by the water-cooled dehumidifier to the outer tank from the suction port.

According to a fifth aspect of the present invention, in the third or fourth aspect, the upper end of the first duct and the upper end of the second duct are connected by an upper folding member. It is a washing and drying machine.

According to this configuration, in addition to the effects of the third and fourth aspects, the first duct is formed integrally with the outer tank and is connected by the upper folded member, so that it is easy to manufacture.

According to a sixth aspect of the present invention, in the third or fourth aspect, the upper end of the first duct and the upper end of the second duct are connected by an upper folding member, and The washing / drying machine is characterized in that an upper end of the three ducts is connected to a blowing member, and lower ends of the second duct and the third duct are connected to a fan casing.

According to this structure, in addition to the effects of the third and fourth aspects, the entire circulation flow path is attached to the outer tub, so that even when the washing and dewatering tub is driven to rotate in the dehydration operation or the like, the influence of imbalance can be reduced. The operation can be reduced, highly reliable operation can be performed, and it can be manufactured with a relatively simple configuration.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. The present invention relates to a washing machine and a washing / drying machine. However, since the washing machine can be implemented by removing the drying mechanism from the washing / drying machine, the embodiment described below relates to a washing / drying machine. explain.

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 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 and is made of a synthetic resin. A drive unit 6 is attached to the outside of the bottom of the outer tub 5 by an attachment base 7 made of a steel plate, and four anti-vibration support units 8 are locked at four corners at the upper end of the frame 1.
Thus, the outer tub 5 is evenly suspended from all sides so that the outer tub 5 is suspended from the center of the frame 1.

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

The top cover 9 having the outer garment inlet 9a is fitted to the opening edge so as to cover the upper opening of the frame 1, and is attached to the 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 section formed between the top cover 9 and the front panel 10, includes 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 connection port 1 on the water 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 solution producing / supplying means supplies 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 through the bottom of the top cover 9 and the rear portion of the outer tub upper cover 28 of the outer tub 5 to allow the washing and dewatering tub 2 to pass through.
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 to extend vertically upward from the suction port 5a formed in the lower side wall of the outer tub 5 along the outer wall surface which is the rear side wall of the outer tub 5. A duct (water-cooling dehumidifying duct 23) which is a dehumidifying air passage for damping the washing water entering from the suction port 5a, and a water-cooling which is located above the water-cooling dehumidifying duct 23 and supplies cooling water into the duct. A cooling water sprinkling part 24 serving as a dehumidifying means, and a descending wind which is folded at a position higher than the water level of the outer tub 5 in the washing operation and extends vertically toward the lower side of the outer tub 5 along the outer wall surface of the outer tub 5 A descending air duct 25 as a road;
The downdraft duct 2 is disposed in the space below the outer tank 5 and
5, a circulating fan 26 that sucks air into the suction port to generate circulating air;
A rising air path duct 27 which is a rising air path extending vertically upward along the outer wall surface of the outer tub 5 from the outlet of the outer tub 5;
A heater (PTC heater) 2 which is a heating means which is installed on an outer tank upper cover 28 attached to the upper end of the outer tank 5 and heats circulating air sent from the rising air duct 27.
9 and a blowing port 30 for blowing heated circulating air into the washing and dewatering tub 2.

As described above, a circulating air path including a water-cooled dehumidifying duct 23, an ascending air path duct 27, a descending air path duct 25, and the like for circulating the air sucked from the suction port 5a into the outer tank 5 by the fan 26. , And all of the circulating air passages are attached to the outer tank.

The water-cooled dehumidifying duct 23, which is the first duct forming the circulation air passage, and the descending wind, which is the second duct and the third duct extending vertically along the side wall of the outer tub 5 in parallel with the first duct. Road duct 25 and updraft duct 27
Is mounted on a rear outer wall surface of the outer tub 5 in a circumferential direction of the outer tub 5 and a part thereof is formed integrally with the outer tub 5 and mounted. It is formed into a shape that swells and screwed.

The upper and lower ends of the second and third ducts are open, respectively, and the second and third ducts are formed continuously on the left and right of the first duct.

As shown in FIG. 11, the side wall of the water-cooled dehumidifying duct 23 has a lower portion a thicker than an upper portion b, so that the mold can be easily removed.

The water-cooled dehumidifying duct 23 is formed so as to extend upward from the periphery of the suction port 5a, and has a bottom 23c having an opening at an upper end and a through-hole 23a at a lower end.

Further, a humidity sensor 40 and a first temperature sensor 41 are installed in the lower portion of
The second temperature sensor 42 is installed in the air path between the downstream side of the heater 29. In order to accurately detect the humidity and temperature of the circulating air dewatered in the water-cooled dehumidification duct 23,
It is preferable that the humidity sensor 40 and the first temperature sensor 41 be brought into contact with each other after the water-cooled and dehumidified circulating air is well mixed and uniform, so that the humidity sensor 40 and the first temperature sensor 41 It is installed in the lower part of the downdraft duct 25 remote from the air conditioner or in the suction port casing 26 c of the circulation fan 26. Further, the humidity sensor 40 and the first temperature sensor 41 are connected to the rear lid 1a for convenient maintenance work.
The installation position is such that it is exposed when it is removed.

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 lint collecting means described later.

The outer garment inlet 9a formed in the top cover 9 is hinged 31a so as to open 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 formed of a synthetic resin having legs 36 attached to four corners is attached to the lower edge of the frame 1.

Reference numeral 38 denotes the laundry put into the washing and dewatering tub 2.

FIG. 2 is a block diagram showing an electric system of the washing and drying machine.

The control unit 16, which receives power via the power switch 13, is constituted mainly by a microcomputer 16a, and includes a power supply circuit 16b, the drive device 6, the main water supply solenoid valve 20, the auxiliary water supply solenoid valves 22, 22a and the detergent. A drive circuit 16c having a semiconductor AC switching element (FLS) group for controlling power supply to the stirring motor 39, the drain electromagnetic valve 33, the circulation fan 26, the heater 29, and the cooling water spray electromagnetic valve 24a is provided.

The drive motor 61 of the drive device 6 has a stator winding 61a and a rotation sensor 61b, and the electric operation clutch mechanism 62 has an electric operation machine 62a and a position sensor 62c for detecting an operation position.

The drive circuit 16c controls the power supply to the stator winding 61a of the drive motor 61 in the drive device 6 by two semiconductor AC switching elements (FLS) 16c1 and 16c2 for forward and reverse rotation control. Is provided. FLS16c1 is a semiconductor switching element for forward rotation power supply control, and FLS16c2 is a semiconductor AC switching element for reverse rotation power supply control. In this embodiment, the rotational speed of the drive motor 61 is controlled by controlling the phase of the stator winding 61a by the FLSs 16c1 and 16c2. However, an inverter-driven brushless motor is used. The configuration is such that it is performed by PWM control or PAM control. FL for controlling the power supply of the electric operation clutch mechanism 62 of the driving device 6 to the electric operation device 62a.
S16c3 is provided.

The drive circuit 16c includes the main water supply solenoid valve 2
0, auxiliary water supply solenoid valves 22, 22a, detergent stirring motor 3
9. FLS 16c4 for controlling the power supply to the drain electromagnetic valve 33, the circulation fan 26, the heater 29, and the cooling water spray electromagnetic valve 24a.
To 16c11. Then, the driving circuit 16c
Is determined according to an instruction from the microcomputer 16a.
The power supply to the subordinate load is controlled by controlling the conduction state of the LS 16c1 to the FLS 16c11.

The microcomputer 16a further includes a rotation sensor 61b of the drive motor 61, a position sensor 62c of the electric operation clutch mechanism 62, a water level sensor 15 for detecting a washing water level in the outer tub 5, a humidity sensor 40, By connecting to the second temperature sensors 41 and 42, the unbalance detection sensor 43, and the operation panel 14 and executing a control processing program incorporated in advance, the input switch group 14a of the operation panel 14, the water level sensor 15, and the rotation sensor 61b By taking in signals from the position sensor 62c, the humidity sensor 40, the first and second temperature sensors 41 and 42, and the unbalance detection sensor 43 and controlling the drive circuit 16c, detection, generation of a high-concentration detergent solution, and laundry Performs wet, high-concentration detergent solution production / supply (immersion), washing, rinsing, dehydration, and hot-air drying operations. Display element groups of the operation panel 14 14
The progress is displayed by controlling b. Here, the unbalance detection sensor 43 is connected to the washing and dewatering tub 2.
Is a sensor for detecting that the washing and dewatering tub 2 (outer tub 5) swings more than a predetermined value due to the imbalance in the distribution of the laundry 38 in the washing and dewatering tub 2 when is rotated.

In this washing and drying machine, 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 and 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 solenoid valve 22 is opened to supply additional water to the detergent dissolving container 21 to overflow the high concentration detergent solution in the detergent dissolving container 21 and supply it to the water inlet 19 and to supply the main water. 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 soaked 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 immersed 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 drive device 6 is controlled so that the dehydration tub 2 and the stirring blade 4 are rotated forward and backward in opposite directions to perform a washing operation in which a mechanical force is applied to the laundry 38.

After the washing operation 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 operation in which the laundry is rotated in the forward and reverse directions by applying a mechanical force to the laundry 38. This rinsing operation 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 operation is completed, the drain solenoid valve 33 is controlled so as to drain the rinsing water out of the machine, and 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 by centrifugally dehydrating the rinse water.

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. And the humid air in the outer tub 5 and the washing and dewatering tub 2 is sucked out from the suction port 5a to be blown out.
The operation of the circulation fan 26 is controlled so as to generate circulating air blown into the washing and dewatering tub 2 from above, and the sprinkling electromagnetic valve 24 a of the cooling water sprinkling section 24 is controlled so that the circulating air is water-cooled in the water-cooling and dehumidifying duct 23. Then, a hot air drying operation for controlling the heater 29 so as to heat the air blown into the washing and dewatering tub 2 is executed. This hot air drying operation is controlled by the humidity sensor 4.
0, while monitoring the detection signals of the first temperature sensor 41 and the second temperature sensor 42, and ending when a desired degree of dryness is obtained.

FIGS. 3 to 8 show a specific structure of the above-described washing and drying machine. FIG. 3 is a vertical sectional side view of the washing and drying machine, and FIG. Rear view of the washer / dryer showing the road, FIG. 5 is a bottom view showing a part of the washer / dryer cut away, and FIG. 6 is a diagram of the washer / dryer showing the outer tub and the circulation air path with the upper cover removed. FIG. 7 is a top view showing the relationship between the frame and the outer tub, and FIG. 9 is an exploded view of the outer tub upper cover. 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 extends along the outer tub 5 so as to be located at the last part of the cylindrical outer tub 5, that is, a part close to the rear lid 1 a of the frame 1. The outer tub 5 is formed integrally with the side wall of the outer tub 5 by molding continuously from the peripheral edge of the suction port 5a. The water-cooled dehumidification duct 23 is formed in a rectangular air path cross-sectional shape having a reduced depth and an increased width so as to be suitable for being disposed in a narrow space between the outer tub 5 and the rear lid 1a. The water-cooling and dehumidifying duct 23 having such a wide and substantially rectangular air path cross-sectional shape is
Since the wall surface is widened and the circulating air cooling wall surface is increased, it is suitable for cooling and dehumidifying the circulating air.

The vertical portion of the downdraft duct 25 is formed integrally with the side wall of the outer tank 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 rear lid 1a by the curvature of the outer tub 5, so that the cross-sectional shape of the air passage is formed to have a substantially square shape with an increased depth and a reduced width, thereby suppressing an increase in the lateral width of the circulation air passage. It is constituted so that.

The vertical portion of the updraft duct 27 is located next to the water-cooled dehumidifying duct 23 on the opposite side.
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 rear lid 1a by the curvature of the outer tub 5, so that the cross-sectional shape of the air passage is formed to have a substantially square shape with an increased depth and a reduced width, thereby suppressing an increase in the lateral width of the circulation air passage. It is constituted so that.

The outer surface of each of the ducts 23, 25 and 27 integrally formed on the rear side wall of the outer tub 5 along the rear side wall as described above constitutes the rear lid 1a constituting the rear side wall of the frame 1. Are 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 support devices 8 locked to the reinforcing members 1b connected to the four corners at the upper end of the frame 1. It is supported so as to be suspended at the center of the body 1.

An upper turn-back member 44 for connecting and communicating the vertical portion of the water-cooling dehumidifying duct 23 as the first duct and the upper end of the descending air duct 25 as the second duct is an outer tank attached to the upper end of the outer tank 5. The lint collecting filter 45 constituting the lint collecting means is stored so as to be obliquely insertable into and removable from the upper side of the inner lid 32.

A blowing port member 30 connected to and communicated with the upper end of the vertical portion of the rising air duct 27 protrudes to 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 circulated air blows into the washing and dewatering tub 2 in a direction opposite to the rotation direction of the washing and dewatering tub 2 and faces the opening of the washing and dewatering tub 2. To open. The heater 29 employs a PTC heater, and is installed obliquely so that the ventilation path is inclined in the vertical direction, thereby reducing the height of the air inlet 30 to suppress an increase in the height of the body.

The outer tank upper cover 28 has a two-layer structure in which a lower resin molding member 28b and an upper metal plate (stainless steel plate) 28c are superimposed, and the blowing port 30 and the upper folding member 44 are provided as necessary. Is integrally molded with the resin molded member 28b. The metal plate 28c functions as a reinforcing and heat-resistant member.

The circulating fan 26 includes a centrifugal impeller 26a, a driving motor 26b for rotating the centrifugal impeller 26a, a suction port casing 26c surrounding the centrifugal impeller 26a, and a blow-off port casing 26d. By being attached to the lower side, the drive unit 6 is arranged in a space formed below the outer tank 5 in the frame 1 so as to be located on the rear side.

The combination of the inlet casing 26c and the outlet casing 26d is called a fan casing. The lower end of the descending air duct 25 and the lower end of the ascending air duct 27 are connected to the fan casing.

More specifically, the inlet casing 26c of the fan casing has a drain outlet 26e and is connected to the lower end of the descending air duct 25. Outlet casing 26d
Is connected to the lower end of the updraft duct 27.

The fan 26 (circulation fan) configured as described above is attached to the lower part of the outer tank behind the drive unit 6 below the suction port 5a.

More specifically, the circulation fan 26 is mounted on the centrifugal impeller 2.
The outer tub 5 is located above the driving motor 6a and the driving motor 26b, the driving device 6 is located ahead, and the casings 26c, 26
Since the airflow ducts 25 and 27 are located, the radiation of the sound generated by the centrifugal impeller 26a and the drive motor 26b is blocked (suppressed) by these, so that the noise in the drying operation is reduced.

FIGS. 10 and 11 are views for explaining a method of integrally forming the outer tub 5 and each of the ducts 23, 25, and 27. FIG. FIG. 11 is a perspective view showing each of the ducts 23, 25, and 27 together with a forming die. FIG.
It is a rear view which shows a part and 5 and 27 with a shaping die.

The vertical portions of the outer tub 5 and the ducts 23, 25, 27 are integrally formed of synthetic resin. A molding die for molding the outer tub 5 includes a cylindrical surface inner mold 46b having a molding surface for molding the inner peripheral surface and the inner surface of the bottom of the outer tub 5 and a retractable core 45a for molding the suction port 5a. The outer peripheral surface 47a-47d divided into four parts in the circumferential direction for forming the outer surface of the outer tub 5 and the outer surfaces of the ducts 23, 25, 27, the outer surface of the bottom of the outer tub 5 and the ducts 23, 25, 27 A tank bottom mold 47e for molding the lower end and three duct inner molds 48a, 48b and 48c for molding the inner peripheral surfaces of the ducts 23, 25 and 27 are used.

The injection molding machine is based on the tank bottom mold 47e, the tank inner mold 46b, the tank outer molds 47a to 47d, and the duct inner mold 4b.
Assemble and disassemble the molding die by combining 8a to 48c
(Type assignment). The tank inner mold 46b moves vertically from the upper side, the tank outer dies 47a-46d move horizontally from the four sides, and the duct inner molds 48a-48c move vertically from the upper side. Since the upper and lower ends of the ducts 25 and 27 are opened, the lower ends of the duct inner dies 48b and 48c are fitted and positioned in the concave portions 47b and 47c of the tank bottom die 47. Since the duct 23 has a configuration in which the lower end portion is continuously formed from the peripheral portion of the suction port 5a of the outer tank 5 and is integrally formed, a small through hole 23a (used as a through hole) is formed in the bottom wall portion of the duct 23. Projections 4 provided on the inner mold 48a so that
8a1 is fitted into the concave portion 47a of the tank bottom mold 47 and positioned. Through hole 23 formed by this projection 48a1
After that, a is filled with a stopper and sealed in a watertight state.

Injection molding using a mold having such a structure is as follows.
Outer tub 5 and duct 2 by relatively small injection molding machine
3, 25, 27 can be integrally formed.

Next, the means for producing / supplying a high-concentration detergent solution will be described. FIG. 12 shows a detergent dissolving vessel 21 and a detergent stirring motor 3.
9 is a vertical sectional side view showing the relationship of FIG. The high-concentration detergent liquid producing / supplying means includes a detergent dissolving vessel 21 and a detergent stirring motor 3.
9 are placed horizontally on the metal base plate 49 in a horizontal direction.

The detergent dissolving container 21 has a storage section 21 u into which the detergent is charged, and a detergent stirring blade 50 disposed at the bottom of the storage section.
The stirring blade drive shaft 51 connected to the detergent stirring blade 50 vertically penetrates through the bottom wall 21a of the detergent dissolving vessel 21 and the metal base plate 49 so that the metal base plate 49
, And a timing belt driven pulley 52 is fitted to the derived portion. The detergent stirring motor 39, which is a driving means of the detergent stirring blade 50, is provided with the metal base plate 49 so that the rotation output shaft 39a passes through the metal base plate 49 in a vertical state and is led out to the lower side of the metal base plate 49. And the timing belt drive pulley 53 is fitted to the lead-out portion. The driven pulley 52 and the driving pulley 53 are linked by a timing belt 54.

The metal base plate 49 is provided with the stirring blade drive shaft 5.
A bearing cylinder portion 49a for fitting the bearing 55 supporting the bearing 1 is outwardly protruded, and an annular detergent melting container fitting convex portion 49b is protruded concentrically on the inside thereof. On the bottom wall 21a of the detergent dissolving container 21, a cylindrical portion 21b fitted on the outer periphery of the detergent dissolving container fitting convex portion 49b is erected inward so as to be sunk into the lower concave portion of the detergent stirring blade 50. The cylindrical portion 21b is fixed to the metal base plate 49 by the set screw 56 in a state where the cylindrical portion 21b is fitted and positioned on the outer periphery of the detergent dissolving container fitting convex portion 49b. The stirring blade drive shaft 51 supported by the bearing 55 penetrates through the cylindrical portion 21b and is led out to the inside of the detergent dissolving vessel 21, and the detergent stirring blade 50 is fitted to the lead-out portion. A shaft seal member 57 is housed between the inside of the cylindrical portion 21b and the stirring blade drive shaft 51. The detergent stirring blade 50
A concave portion 51b that forms a cylindrical inner wall surface 51a surrounding the cylindrical portion 21b below the detergent agitating blade 50 by extending downward in a radial direction so as to face the outer periphery of the cylindrical portion 21b and to extend downward. To form A detergent seal member 58 fitted on the outer periphery of the cylindrical portion 21b is interposed between the cylindrical portion 21b and the cylindrical inner wall surface 51a.

The metal base plate 49 is further provided with a fitting hole 49c for fitting the outer periphery of the bearing cylinder 39b of the detergent stirring motor 39.
The bearing cylinder 39b is fitted and positioned in the fitting hole 49c in a state where the vibration isolating member 59 is fitted to the bearing cylinder 39b of the detergent stirring motor 39, and the bearing cylinder 39c on the opposite side of the detergent stirring motor 39 is provided. A vibration isolating member 70 is fitted on the metal base plate 49 and is fixed to the metal base plate 49 with a set screw 72 so as to surround the periphery thereof.
9 is attached so as to be sandwiched between the vibration isolating members 59 and 70.

The configuration in which the detergent dissolving container 21 and the detergent stirring motor 39 are arranged side by side as described above makes it possible to reduce the height of the back panel box 17 and suppress an increase in the height of the body. Further, since the stirring blade drive shaft 51 and the rotation output shaft 39a of the detergent stirring motor 39 are accurately positioned by the bearing cylinder 49a and the fitting hole 49c formed on the metal base plate 49, the rotation driving force by the timing belt 54 is provided. Transmission becomes smooth and quiet operation is possible. Further, the concave portion 50b that forms the cylindrical inner wall surface 50a below the detergent stirring blade 50 so as to surround the cylindrical portion 21b of the detergent dissolving container 21 forms an air reservoir partitioned by the detergent seal member 58. , A high-concentration detergent solution generated by dissolving a powdered synthetic detergent invades the shaft seal member 57 and the bearing 5.
5 functions to prevent damage.

A further specific configuration of the detergent dissolving container 21 including the detergent charging container will be described with reference to FIGS. 13 is a perspective view of a detergent dissolving container, FIG. 14 is a front view thereof, FIG. 15 is a top view thereof, FIG. 16 is a left side view thereof, FIG. 17 is a right side view thereof, and FIG. 18 is a detergent dissolving container and a main water supply solenoid valve. 19 to 22 are vertical side views of a detergent dissolving container on which a detergent charging container is placed, and FIG. 23 is a diagram illustrating a detergent with the outer lid opened. FIG. 24 is a perspective view of the top cover showing a state where the charging container is pulled out, and FIG. 24 is a perspective view of the top cover showing a state where the detergent charging container is pushed in.

The detergent dissolving container 21 is a substantially rectangular container capable of mounting the detergent charging container 73 so as to be able to move forward and backward with the upper part opened. The detergent dissolving chamber 21 in which the detergent stirring blades 50 are installed.
c, a finishing agent charging chamber 21d such as a softener, a washing water supply channel 21e, and an overflow channel 21f connected to the washing water supply channel 21e.

The detergent dissolving chamber 21c is provided with a water receiving port 21g for receiving water from an auxiliary water supply electromagnetic valve 22, which is a water supplying means (first water supplying means) for supplying water to the storage section 21u, and water and detergent entering from the water receiving port 21g. Are stirred by the detergent agitating blades 50 to generate a detergent solution, and the high-concentration detergent solution is diluted by further water supply from the auxiliary water supply solenoid valve 22 of the first water supply means to increase the amount of overflow. An overflow edge 21h, which is an overflow portion for overflowing the laundry 21f and supplying it to the laundry, is provided on the upper portion of the storage portion 21u, and a rib 21i for suppressing rotation of the detergent-dissolving water (high-concentration detergent solution) at the time of stirring; The diluted high-concentration detergent solution is placed in the detergent dissolution chamber 2
1c, a siphon water flow mechanism 21j, which is a siphon means flowing out from the bottom of the washing water supply channel 21e, a guide rail 21k for guiding the advance / retreat of the detergent container 73 described later, and a fixing for turning the bottom cover of the detergent container 73. Gear 21
m.

The volume of the detergent dissolving chamber 21c is set to a small amount necessary for dissolving the powdered synthetic detergent, for example, 200 to 30 in consideration of installation in the back panel box 17.
With 0 cc of tap water, e.g.
The size is set to be suitable for generating a density of 0 to 300 times. Here, the detergent concentration means, for example, in washing using 60 L of washing water, the detergent solution obtained by dissolving the powder detergent in 6 L of water has a detergent concentration of 10 times.

The finishing agent supply chamber 21d as a finishing agent supply means
Has an overflow edge 21n connected to the overflow channel 21f, a siphon water passage mechanism 21p connected to the washing water supply channel 21e, and a water receiving port 21q from the auxiliary water supply electromagnetic valve 22a, and receives a finishing agent (liquid) in the room. The volume is increased by dilution by receiving water from the water port 21q, and the overflow channel 21
The water overflows to 1f, and flows out from the siphon water passage mechanism 21p to the washing water supply channel 21e.

The main water supply solenoid valve 20 is a water supply means (second water supply means) for supplying water to the laundry.
Water supply port 21r for receiving water from the nozzle, and a first supply flow path for supplying the detergent and water generated by stirring the detergent and water in the storage unit 21u with the detergent stirring blade 50 from the overflow unit to the laundry. And a second supply flow path for supplying the laundry from the siphon water flow mechanism 21j to the laundry, the detergent liquid from the first supply flow path and the detergent liquid from the second supply flow path. Are mixed in the mixing chamber 21v. Further, water from the second water supply means is also mixed in the mixing chamber 21v. The mixing chamber 21v is provided in the detergent dissolving container 21. In addition, overflow channel 2
The 1n and the finishing agent flowing out of the siphon water passage mechanism 21p are combined and mixed in the mixing chamber 21v to form a flow path flowing out from the outlet 21s to the water inlet 19.

The detergent charging container 73 is provided in the detergent dissolving container 2.
1 is a flat rectangular box-like body that advances and retreats along the guide rail 21k and has an open upper side. As shown in FIG. 23, the detergent charging section 73a, the finishing agent charging section 73b, and the handle section 73c are formed. Prepare.

The detergent introduction section 73a is provided so as to advance and retreat above the detergent dissolution chamber 21c of the detergent dissolution container 21, and has a bottom plate 73d which turns so as to open and close the bottom of the rear half area. As shown in FIG. 19, the bottom plate 73d is rotatably supported by a support shaft provided with a gear 73e at the shaft end. When the bottom plate 73d is pushed inward, the gear 73e engages with the gear 21m and is attached to the lower surface of the front half region. 20 and 21 in the process of being pulled out to the near side while turning down until the horizontal state is turned upside down until the bottom half area of the detergent introduction section 73a is fully opened. Then, as shown in FIG. 22, it is pushed by the opening edge of the top cover 9 or the edge of the detergent dissolving container 21 so as to close the bottom. However, the bottom plate 73d is a short plate that opens the rear end portion of the detergent introduction part 73a to a position above the detergent dissolution chamber 21c even when the bottom plate 73d is turned to close the bottom.

The finishing agent charging section 73b is provided in the detergent dissolving container 21.
Located above and below the finishing agent charging chamber 21d,
In the pulled-out state, the inner bottom located above the finishing agent introduction chamber 21d is opened.

The handle portion 73c is located on the front side of the detergent container 73, and functions as a grip portion that is exposed on the inner wall surface of the outer garment inlet 9a formed on the top cover 9 and is operated to advance and retreat. I do.

The high-concentration detergent liquid producing / supplying means configured as described above grasps the handle portion 73c and pulls out the detergent supply container 73 into the outer clothes input port 9a. In the detergent charging container 73 in the pulled-out state, the detergent charging portion 73a has the front side portion opened upward in the outer clothing input port 9a, the bottom plate 73d is closed, and the rear end portion is located in the detergent melting chamber 21c of the detergent melting container 21. It is opened above. Therefore, when a predetermined amount of powdered synthetic detergent is introduced into the detergent introduction section 73a, a part of the powder synthetic detergent falls into the detergent dissolving chamber 21c from the opening at the back end portion, and a part of the bottom plate 73
d. Further, when the finishing agent is charged into the finishing agent charging section 73b, the finishing agent flows down to the finishing agent charging chamber 21d.

Then, when the detergent charging container 73 is pushed in,
The bottom plate 73d of the detergent introduction part 73a is separated from the edge of the detergent dissolving container 21 and hangs down to drop the remaining powdery synthetic detergent into the detergent dissolving chamber 21c.
Then, e is engaged with the gear 21m and turned upside down along the lower surface of the front half region to rotate until it is horizontal.

In this state, the auxiliary water supply electromagnetic valve 22 is opened so that the auxiliary water supply electromagnetic valve 22 does not overflow from the overflow edge 21h and the siphon water passage mechanism 21 does not overflow.
An amount that does not allow water to pass through (200-300 cc)
Is supplied to the detergent dissolving chamber 21c, and the detergent agitating blades 50 are rotated by the detergent agitating motor 39 to dissolve the powdery synthetic detergent to obtain a high concentration (200 to 3 of the detergent concentration of the wash water).
(00 ×) detergent liquid.

Thereafter, the auxiliary water supply solenoid valve 22 is opened to perform additional water supply, thereby diluting and increasing the amount of water.
The water overflows from 1h, and the siphon water flow mechanism 21j starts water flow (conduction) and flows out to the washing water supply flow path 21e. At the same time, the main water supply solenoid valve 20 is opened to supply water to the washing water supply passage 21e to further dilute the high-concentration detergent solution and to settle the detergent concentration suitable for immersion in the laundry (washing water). (5 to 30 times the detergent concentration), and flows out from the outlet 21s to the water inlet 19.

Further, the subsequent supply of the washing water is performed while the detergent dissolving container 21 is being washed by opening the main water supply solenoid valve 20 and the auxiliary water supply solenoid valve 22 until a predetermined water level is reached.

In the washing / drying machine configured as described above, since the water-cooled dehumidifying duct 23 and the air ducts 25 and 27 are formed integrally with the outer tub 5, the circulation air path is formed rationally. can do.

The water-cooling dehumidifying duct 23 is formed integrally with the peripheral portion of the suction port 5a at the lower portion of the outer tub 5 so as to be integrally formed so as to open upward and open at the upper end, so that the water-cooling dehumidifying duct 23 is easily formed into a watertight structure. be able to.

Further, by arranging the circulation fan 26 in the space below the outer tub 5, an increase in the height of the washing and drying machine can be reduced.

Further, the water supply solenoid valves 20, 22, 22a and the detergent dissolving container 21 are installed in the back panel box 17 of the top cover 9 attached to the upper end of the frame 1, and are connected to the inlet 30 of the circulation air passage. By installing the lint collecting filter 45 on the outer tub upper cover 28 attached to the upper end of the outer tub 5, the outer lid 31 is opened so that the lint collecting filter 45 and the detergent charging container 73 are moved outward. Clothes inlet 9
Since it can be operated from the inside of a, a washing and drying machine which is easy to operate can be provided.

The water-cooled dehumidifying duct 23 and the air duct 2
5 and 27 are formed integrally with the outer tub 5 on the rear side of the outer tub 5 so as to be covered by the rear lid 1a swelling outwardly of the frame 1. Increase in size can be suppressed.

Further, the outer tub 5 is supported by being suspended from the four corners at the upper end of the frame 1 by the vibration isolating support device 8, so that the outer tub 5 can be supported in a well-balanced manner.

Further, the detergent dissolving container 21 is formed in a small size (small volume) so as to dissolve at a higher concentration than the high concentration detergent solution which is descended and sinks on the laundry 38, and the generated high concentration detergent solution is formed. Is soaked in the laundry 38 while diluting it to an appropriate detergent concentration for immersion, so that the detergent can be dissolved well, and furthermore, it is installed in the back panel box 17 formed in the top cover 9. Is easier to do. Further, the siphon water passage mechanism 21j can flow out most of the detergent liquid in the detergent dissolution container 21.

Further, since the detergent agitating motor 39 for rotating the detergent agitating blade 50 for agitating the detergent is arranged side by side with respect to the detergent dissolving vessel 21, the height can be reduced. Moreover, since the detergent dissolving container 21 and the detergent stirring motor 39 are positioned on the metal base plate 49, they can be driven quietly by accurate belt connection.

Further, the bearing 55 and the shaft seal member 57 of the stirring blade drive shaft 51 for driving the detergent stirring blade 50 are provided between the cylindrical portion 21 b standing on the bottom wall 21 a of the detergent dissolving vessel 21 and the detergent stirring blade 50. The recess 50b formed on the side forms an air pocket to prevent the intrusion of the high-concentration detergent solution, thereby reducing the damage caused by additives (particularly zeolite) contained in the powdered synthetic detergent.

Since the detergent is supplied through the detergent container 73 which is placed on the detergent dissolving container 21 so as to be capable of moving forward and backward and drawn out to the clothes input port 9a, the detergent can be easily supplied.

[0102]

According to the present invention, it is possible to provide a washing / drying machine capable of performing a reliable operation in the washing operation and the drying operation.

[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 block diagram showing an electric system of the washing and drying machine shown in FIG.

FIG. 3 is a vertical sectional side view showing a specific configuration of the washing / drying machine according to the present invention.

FIG. 4 is a rear view of the washing and drying machine shown in FIG. 3, in which a rear side of the frame is cut away to show a circulation air path;

FIG. 5 is a bottom view of the washing and drying machine shown in FIG. 3 with a part cut away.

FIG. 6 is a top view showing the outer tub and the circulating air passage with the top cover of the washing and drying machine shown in FIG. 3 removed.

7 is a vertical sectional side view of the lint collecting unit in FIG. 6;

FIG. 8 is a top view showing the relationship between the frame and the outer tub of the washing and drying machine shown in FIG. 3;

FIG. 9 is an exploded view of the outer tub upper cover of the washing and drying machine shown in FIG. 3;

FIG. 10 is a perspective view showing an integrally formed outer tub and respective ducts of the washing and drying machine shown in FIG. 3 together with forming dies.

11 is a rear view showing the outer tub and each duct integrally formed with the washing and drying machine shown in FIG. 3 with a molding die partially cut away.

12 is a vertical sectional side view showing a relationship between a detergent dissolving container and a detergent stirring motor of the washing and drying machine shown in FIG. 3;

FIG. 13 is a perspective view more specifically showing the detergent dissolving container shown in FIG.

14 is a front view of the detergent dissolving container shown in FIG.

15 is a top view of the detergent dissolving container shown in FIG.

FIG. 16 is a left side view of the detergent dissolving container shown in FIG.

17 is a right side view of the detergent dissolving container shown in FIG.

18 is a perspective view showing a top cover on which the detergent dissolving container, the main water supply solenoid valve and the auxiliary water supply solenoid valve of the washing and drying machine shown in FIG. 3 are mounted, with a back panel opened.

19 is a vertical sectional side view showing a state where the detergent charging container mounted on the detergent dissolving container of the washing and drying machine shown in FIG. 3 is pushed in.

20 is a vertical sectional side view showing a state where the detergent charging container mounted on the detergent dissolving container of the washing and drying machine shown in FIG. 3 is slightly pulled out.

21 is a vertical sectional side view showing a state in which the detergent charging container mounted on the detergent dissolving container of the washing and drying machine shown in FIG. 3 is further pulled out.

FIG. 22 is a vertical sectional side view of the washing and drying machine shown in FIG. 3 in a state where the detergent charging container mounted on the detergent dissolving container is further pulled out.

FIG. 23 is a perspective view of a top cover showing a state where an outer lid of the washing and drying machine shown in FIG. 3 is opened and a detergent charging container is drawn out.

24 is a perspective view of a top cover showing a state where an outer lid of the washing and drying machine shown in FIG. 3 is opened and a detergent charging container is pushed in. FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Frame body, 1a ... Rear lid, 1b ... Reinforcement member, 2 ... Washing and dewatering tank, 4 ... Stirring blade, 5 ... Outer tank, 5a ... Suction outlet, 6 ... Drive device, 8 ... Anti-vibration support device, 9 ... Top cover, 9a ...
Outer clothing slot, 17 ... Back panel box, 19 ...
Injection port, 20: Main water supply solenoid valve, 21: Detergent dissolving container, 2
1b: cylindrical portion, 21c: detergent dissolving chamber, 21h: overflow edge,
21j: siphon water passage mechanism, 22, 22a: auxiliary water supply solenoid valve, 23: water-cooled dehumidification duct, 24: cooling water sprinkling section, 2
Reference numeral 5: descending air duct, 26: circulating fan, 27: ascending duct, 28: outer tank upper cover, 28a: inner clothing inlet, 29: heater, 30: inlet, 31: outer lid, 32 ...
Inner lid, 39 ... detergent stirring motor, 40 ... humidity sensor, 41
.., A first temperature sensor, 42, a second temperature sensor, 44, an upper folded member, 45, a lint collecting filter, 49, a metal base plate, 50, a detergent stirring blade, 50 b, a concave portion, 57, a shaft seal member, 58 ... detergent seal member, 73 ... detergent charging container, 7
3a: detergent input section, 73d: bottom plate.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenichi Ogoshi 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside Hitachi Taga Electronics Co., Ltd. No. 1-1 Hitachi Taga Electronics Co., Ltd. (72) Inventor Tamotsu Kamori 1-1-1, Higashitagacho, Hitachi City, Ibaraki Prefecture F-term in Hitachi Taga Electronics Co., Ltd. F-term (reference) 3B155 AA16 BB19 CA05 CA06 CA16 CB07 CB49 CB52 CB55 CB57 DB12 FA29 GB03 GB10 HB28 LC15 LC28 MA01 MA02 MA09

Claims (6)

[Claims] A frame, an outer tub suspended from and supported by the frame, a washing and dewatering tub installed in the outer tub, a driving device for rotating and driving the washing and dewatering tub, A fan that sucks air in the outer tub from a suction port provided at a lower portion of the outer tub, a heating unit that heats the air sucked from the outer tub, and the air that is sucked from the suction port. A washing / drying machine having a circulation air path circulated into the outer tub by a fan, wherein the entire circulation air path is attached to the outer tub. 2. The washing and drying machine according to claim 1, wherein the fan is attached to a lower portion of the outer tub. 3. A circulating air passage according to claim 1, wherein a part of said circulating air passage is constituted by a duct formed integrally with said outer tank, and said duct is provided with a first duct formed to extend upward from said suction port. A second duct and a third duct provided on the left and right of the first duct in parallel with the first duct, and the fan is provided at a lower portion of the outer tub below the suction port and behind the driving device. A washing and drying machine characterized by being attached. 4. A frame, an outer tub suspended from and supported by the frame, a washing and dewatering tub installed in the outer tub, a driving device for rotating and driving the washing and dewatering tub, A fan for sucking air in the outer tub from a suction port provided in a lower portion of the outer tub, a heating unit for heating the air sucked from the outer tub, and a water-cooled dehumidifier for the air sucked from the outer tub. A water-cooled dehumidifier, and a circulating air passage for circulating the air sucked from the suction port into the outer tub by the fan, and a part of the circulating air passage is formed integrally with the outer tub. A first duct formed so as to extend upward from the suction port portion, and a second duct and a third duct provided on the left and right of the first duct in parallel with the first duct. Wherein the first duct has a water-cooled dehumidifier, A washing and drying machine wherein the fan is attached to a lower portion of the outer tub below the suction port and behind the driving device. 5. The washing and drying machine according to claim 3, wherein an upper end of the first duct and an upper end of the second duct are connected by an upper folding member. 6. An upper end of the first duct and an upper end of the second duct are connected by an upper turn-back member, and an upper end of the third duct is connected to an inlet member. And a lower end of the second duct and the third duct are connected to a fan casing.