JP2003305292A - Washing and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing and drying machine by which drying is enabled with a simple configuration, a blow passage with little pressure loss and air leakage is formed without enlarging a machine main body and increasing its weight, a blow amount is increased to enhance drying performance, and noise with it is reduced, concerning the washing and drying machine including; a washing process for washing, rinsing, and dehydrating; and a drying process. <P>SOLUTION: An outer frame cover 46 covers the upper part of an outer frame 45. An inner tub 4 with a rotary center axis in a vertical direction is freely rotatably arranged inside an outer tub 3 which is supported in the outer frame 45. Outer air is taken in from an intake duct 44, blown by a blow fan 35, a first casing 36, and a second casing 37, and heated by a heater 39. The intake duct 44, the blow fan 35, the first and second casings 36 and 37, and the heater 39 are united to obtain a warm air blow means 33. The warm air blow means 33 is arranged inside the outer frame cover 46 to blow warm air into the inner tub 4. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washer / dryer provided with washing, rinsing and dehydrating washing steps and a drying step.

[0002]

2. Description of the Related Art Conventionally, a washing and drying machine of this kind has been proposed to have a structure as shown in FIG. The configuration will be described below.

As shown in the figure, the outer frame 1 is provided with an outer tub 3 which is elastically suspended by a plurality of suspensions 2, and the suspension 2 absorbs vibrations during dehydration. Inside the outer tub 3, an inner tub 4 having a central axis of rotation in the vertical direction and accommodating laundry and objects to be dried
Is rotatably arranged around the dehydration shaft 5, and a rotary blade 6 for stirring clothes (laundry or an object to be dried) is rotatably arranged around the washing shaft 7 at the inner bottom of the inner tub 4. There is.

Further, a large number of small holes (not shown) are provided on the inner peripheral wall of the inner tank 4, and the fluid balancer 8 is provided above.
Is provided. By forming the stirring protrusion 10 on the upper surface of the substantially dish-shaped base having the inclined surface 9 on the outer peripheral portion of the rotary blade 6, the object to be dried is inclined by the centrifugal force generated by the rotation of the rotary blade 6 in the drying process. It is easy to climb upwards along the surface 9.

The motor 11 is attached to the bottom of the outer tank 3,
Rotational force is transmitted when washing or dehydrating the washing shaft 7 and the dehydration shaft 5.
It is connected to the inner tub 4 or the rotary blades 6 via the clutch 12 which is switched to, the washing shaft 7 and the dehydration shaft 5.

The heat exchanger 13 dehumidifies the moist circulating hot air, and has a lower bellows-shaped hose 14 whose one end is expandable.
It is connected to the lower part of the outer tub 3 via the, and is connected to one end of a circulation blower 16 via a lint filter 15 which collects lint contained in the warm air circulating at the other end. The other end of the circulation blower 16 is connected to a warm air supply passage 18 having a heater 17 as a heating means and is connected to the inner tub 4 through an upper bellows-shaped hose 19 to form a circulating warm air circulation passage 20. ing.

The outer tub 3 is provided with an outer tub cover 21 that hermetically covers the upper surface of the outer tub 3, and warm air is supplied to the outer tub cover 21 from a retractable upper bellows-shaped hose 19. The supply port 22 is opened. Also, this outer tank cover 21
An inner lid 23 is provided to be openable and closable so that clothes can be taken in and out.

The outer frame cover 24 covers the upper part of the outer frame 1, has an outer lid 25 which can be opened and closed, is provided with operation display means 26, and is provided with a water supply valve 27 for supplying water to the inner tank 4. A drain valve 28 for draining the water in the outer tub 3 is provided at the bottom of the outer tub 3. The cooling blower 29 is attached to the side surface of the outer frame 1 and is configured to blow air so as to cool the outer tub 3 inside the outer frame 1, the heat exchanger 13, and the like.

The controller 30 has a microcomputer, and has a motor 11, a clutch 12, and a blower 1 for circulation.
6, the heater 17, the water supply valve 27, the drain valve 28, the cooling blower 29, and the like are controlled to sequentially control a series of steps of washing, rinsing, dehydration, and drying.

The thermistor 31 detects the temperature of the outer wall of the outer tank 3, and the thermistor 32 detects the temperature of the circulating air at the outlet of the heat exchanger 13. The controller 30 is configured to input the detection outputs from the thermistors 31 and 32 and determine the end of drying.

The operation of the above configuration will be described. In the washing process, when the outer lid 25 and the inner lid 23 are opened, clothes (laundry) are put into the inner tub 4 and the operation is started, the water supply valve 27 is opened to supply water to a predetermined water level, and then the motor 11 is driven. To do. At this time, the power of the motor 11 is transmitted to the rotary blades 6 via the washing shaft 7 by the clutch 12 of the transmission mechanism section, and the rotary blades 6 rotate, so that the stirring protrusions 10 of the rotary blades 6 stir the clothes. However, it is performed by the water flow force and the mechanical force that acts due to the laundry coming into contact with each other or the inner wall of the inner tub 4 and the rotating blades 6.

In the dehydration process, after the washing is completed, the drain valve 28 is opened to drain the water in the inner tub 4, the clutch 12 of the transmission mechanism is switched to the dehydration side, and the power of the motor 11 is set to the dehydration shaft 5. The water is separated from the clothes by transmitting the particles to the inner tub 4 through the inner tank 4 and rotating them to give centrifugal force to the clothes. When the dehydration process ends, the drying process continues.

When the drying process is started, the drain valve 28 is closed and the clutch 12 is switched to the washing side. Then, the motor 11 is driven to be transmitted to the rotary blade 6, and the rotary blade 6 is normally rotated,
While inverting and hooking the clothes by the stirring protrusion 10 to stir the clothes, the circulation fan 16 and the heater 17 are energized to send warm air to the warm air supply port 22. The hot air blown from the warm air supply port 22 into the inner tub 4 evaporates the moisture from the clothes and then flows out from the inner tub 4 to the inside of the outer tub 3 and then the lower bellows-shaped hose 14
To reach the heat exchanger 13.

Warm air that removes moisture from clothes and contains moisture
When passing through the inner wall of the outer tub 3 and the inside of the heat exchanger 13, the outer tub 3 and the outer wall of the heat exchanger 13 are cooled by the inflow of external air by the cooling blower 27 installed on the side surface of the outer frame 1. As a result, dew condensation of water occurs inside, and the moist warm air is dehumidified and returns to the circulation blower 16. By circulating hot air through the hot air circulation path 20, the clothes in the inner tub 4 can be dried.

[0015]

However, in such a conventional configuration, the heat exchanger 13 has one end connected to the lower portion of the outer tub 3 via the expandable lower bellows-shaped hose 14,
Since the other end was connected to one end of the circulation blower 16, the warm air circulation path 20 was inevitably large-scaled, the body of the machine body was large, and the weight was also increased.

Further, the air cooling system for indirectly cooling the hot air circulating in the heat exchanger 13 by the outside air requires a large heat exchange area, and the cooling blower 29 must be provided on the rear surface of the outer frame. Yes, the body of the aircraft was large, and the weight had also increased.

Further, since the warm air circulation path 20 is composed of many parts, the pressure loss becomes large and
A gap is likely to occur in the joint portion of the parts and air leakage is likely to occur, and if it is attempted to increase the air volume, a large circulation blower 1
The 6 had to be rotated at a high speed, which was inevitably large, the weight increased, and the noise also increased.

The present invention solves the above-mentioned problems, and makes it possible to dry with a simple structure, to form a blower path with a large body and without increasing the weight, and with less pressure loss and less air leakage. The purpose is to realize a washing and drying machine that increases the air volume to improve the drying performance and suppresses the accompanying noise.

[0019]

In order to achieve the above object, the present invention covers the upper part of an outer frame with an outer frame cover and has a rotation center axis in the vertical direction in an outer tub supported in the outer frame. The inner tank is rotatably arranged, the outside air is taken in by the intake duct, the taken outside air is blown by the blower fan and the casing, and is heated by the heater.
The intake duct, blower fan, casing, and heater are unitized to form a warm air blower, which is placed inside the outer frame cover,
The hot air is blown into the inner tank.

As a result, it is possible to dry with a simple structure, the size of the machine body is increased, and the weight is not increased.
Furthermore, it is possible to form a ventilation path with less pressure loss and air leakage, to improve the drying performance by increasing the air volume, and to realize a washer / dryer that suppresses noise accompanying it.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention has an outer frame cover for covering the upper portion of the outer frame, an outer tank supported in the outer frame, and a rotation center axis in the vertical direction. An inner tank rotatably arranged in the outer tank, and an intake duct for sucking outside air,
A blower fan and a casing for blowing the inhaled outside air, and a heater for heating the outside air;
The blower fan, casing, and heater are unitized to form warm air blowing means, which is arranged inside the outer frame cover and blows warm air into the inner tank. It is possible, the body of the machine is large, and the weight does not have to be increased. In addition, since the warm air blower is unitized, it is easy to switch the model of the washer / dryer, and even if the basic design is the same, the model equipped with the unitized warm air blower has a washer / dryer and a warm air blower. Models that are not equipped can be easily switched, such as a washing machine.

According to a second aspect of the present invention, in the above first aspect of the invention, the intake duct is configured to take in outside air from the rear of the machine body, and blows air with less pressure loss and air leakage. A path can be formed to increase the air volume, improve the drying performance, and since air is sucked in from the rear, noise such as wind noise due to the blower fan is less likely to come to the front, and the washer / dryer has reduced noise. Can be realized.

According to a third aspect of the present invention, in the invention according to the first or second aspect, the side wall of the intake duct is formed in a curved shape along the flow of the air to be taken in, and turbulent flow is provided. And the drying performance can be improved by increasing the air flow rate, and the accompanying noise can be suppressed.

According to a fourth aspect of the present invention, in the above-described first or second aspect of the invention, the bottom surface of the intake duct is formed in a tapered shape so that the distance becomes narrower as it approaches the fan opening provided in the casing. It is possible to suppress the turbulent flow and increase the air volume to improve the drying performance, and to suppress the accompanying noise.

According to a fifth aspect of the invention, in the invention according to the third aspect, a plurality of curved ribs are formed inside the intake duct along the flow of the air to be taken in. The flow can be suppressed, the amount of air can be increased to improve the drying performance, the noise accompanying it can be suppressed, and further, the user accidentally puts a finger from the intake port,
It is possible to prevent injuries from contacting the blower fan during operation.

According to a sixth aspect of the present invention, in addition to the first or second aspect of the invention, an intake filter is provided,
The intake filter mounting portion for mounting the intake filter is arranged as a unit in the intake duct of the warm air blowing means, and it is possible to prevent dust contained in the outside air from adhering to the heater. Further, the unitization is further advanced, the machine body is large, and it is not necessary to increase the weight, and the model change of the washing machine can be further facilitated. Furthermore, by providing an intake filter, the sound pressure itself leaking to the outside can be reduced, and a washing and drying machine with reduced noise can be realized.

According to a seventh aspect of the present invention, in the above-described first or second aspect of the invention, the intake duct is made to project rearward of the outer frame to open the lower side of the projecting portion of the intake duct, and the rear surface. Since the sound insulating wall is formed in the air-conditioner, and the air is taken in from the lower side of the rear surface, noise such as wind noise due to the blower fan is less likely to come forward, and a washing and drying machine with reduced noise can be realized.

[0028]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

(Embodiment 1) FIG. 2 is a partially cutaway sectional view of the warm air blowing means 33 of this embodiment as seen from above, FIG. 3 is a partially cutaway longitudinal sectional view as seen from the side, and FIG. Is a bottom view as seen from below.

As shown in the figure, a blower fan 35 driven by a blower motor 34 is a centrifugal fan having a central axis of rotation in the vertical direction, and includes a first casing (casing) 36 and a second casing (casing). It is arranged in the vortex chamber 38 formed by 37. On the downstream side of the vortex chamber 38, a heater 39 is arranged in a warm air supply passage 40 that is also formed by the first casing 36 and the second casing 37.

A thermistor 41 is arranged on the downstream side of the heater 39 of the warm air supply passage 40, and an upper bellows-shaped hose 43 is joined to the opening 42 formed in the second casing 37 on the downstream side of the heater 39 so that the warm air is blown. Is configured to blow air. Whirlpool 38
On the upstream side of the above, an intake duct 44 for taking in the outside air is arranged in the lower part of the second casing 37, and the outside air is taken in from the rear of the machine body.

Blower motor 34 and blower fan 3 described above
5, the first casing 36, the second casing 37, the heater 39, the thermistor 41, the upper bellows-shaped hose 43, and the intake duct 44 are unitized and the warm air blowing means 33.
Are configured.

FIG. 1 is a vertical sectional view of the washer / dryer of this embodiment. As shown in the figure, the unitized warm air blowing means 33 is disposed inside an outer frame cover 46 that covers the upper portion of the outer frame 45. The warm air blown by the warm air blowing means 33 is connected from the upper bellows-shaped hose 43 to the warm air supply port 48 formed in the outer tank cover 47 so that the warm air is supplied into the inner tank 4. There is.

Further, an inner lid 49 is provided on the outer tank cover 47 so as to be openable and closable so that clothes can be taken in and out. The outer tank cover 47 has an exhaust port 50 for exhausting the warm air supplied from the warm air supply port 48 to the inner tank 4. Further, a mesh-shaped exhaust filter 51 is provided outside the exhaust port 50.

The control device 52 is equipped with a microcomputer, and has a motor 11, a clutch 12 and a blower motor 3.
4, the heater 39, the water supply valve (not shown), the drain valve 28, and the like are controlled to sequentially control a series of steps of washing, rinsing, dehydration, and drying.

The thermistor 41 detects the temperature of the hot air supplied from the hot air supply passage 40, and is provided between the heater 39 of the hot air supply passage 40 and the upper bellows-shaped hose 43. The control device 52 inputs the detection output from the thermistor 41 and monitors whether the warm air temperature is normal.

The operation of the above configuration will be described. In addition,
Since the operation from the washing process to the dehydration process is the same as the operation of the conventional example, description thereof will be omitted.

In the drying process, the drain valve 28 is closed, the clutch 12 is switched to the washing side, the motor 11 is driven and transmitted to the rotary blades 6, and the rotary blades 6 are normally or reversely rotated to cause the stirring protrusion. Hang clothes at 10 and stir. At this time, the blowing motor 34 of the warm air blowing unit 33 and the heater 3
9 is energized, the outside air is sucked in from the rear side to be heated, and hot air is sent to the upper bellows-shaped hose 43.

The upper bellows-shaped hose 43 is connected to the hot air supply port 48 formed in the outer tank cover 47, and the hot air is supplied into the inner tank 4. The hot air blown into the inner tub 4 evaporates moisture from the clothes, then rises upward from the inner tub 4, and is exhausted through an exhaust filter 51 from an exhaust port 50 formed in the outer tub cover 47.

As described above, in the present embodiment, it is possible to dry with a simple structure, the main body of the machine is large, and it is not necessary to increase the weight. Further, since the warm air blowing means 33 is unitized, it becomes easy to switch the model of the washer / dryer. Even if the basic design is the same, the model equipped with the unitized warm air blowing means 33 is a washer / dryer or warm air blower. A model without the means 33 can be easily switched to a model such as a washing machine.

Further, a ventilation path with less pressure loss and air leakage can be formed to increase the air volume to improve the drying performance, and since air is taken in from the rear, noise such as wind noise caused by the blower fan 35 is generated in the front. It is possible to realize a washer / dryer with less noise and less noise.

In this embodiment, the blower motor 34,
The blower fan 35, the first casing 36, the second casing 37, the heater 39, the thermistor 41, the upper bellows-shaped hose 43, and the intake duct 44 are unitized to constitute the warm air blowing means 33. Any one of the blower fan 35, the first casing 36, and the second casing 37, and the heater 39 may be unitized.

Further, the intake duct 44 may be formed integrally with the second casing 37.

Further, in the present embodiment, the central axis of rotation of the blower fan 35 is constructed in the vertical direction, but it is not limited to the vertical direction, and any direction may be adopted.

Further, although the intake duct 44 for taking in the outside air is formed integrally with the lower portion of the second casing 37, it may be formed in any direction by changing the arrangement.

(Embodiment 2) As shown in FIGS. 5 and 6, in the warm air blowing means 33a, the first side wall 53 and the second side wall 54 of the intake duct 44a are arranged along the flow of the intake air. The bottom surface 55 of the intake duct 44a is tapered so that the distance becomes narrower as it approaches the fan opening 56 provided in the second casing 37. The other structure is the same as that of the first embodiment.

To explain the operation in the above structure, when the air blowing motor 34 of the warm air blowing means 33a is energized, the air blowing fan 35 rotates and the central portion becomes negative pressure, and the outside air is taken in. At this time, the inhaled air is influenced by the rotation of the blower fan 35 and is not inhaled in a straight line, but in a curved line.

The first side wall 53 and the second side wall of the intake duct 44a
Since the side wall 54 of the is formed into a curved surface along the flow of the air that is taken in, it is possible to suppress turbulence, increase the air volume and improve the drying performance, and suppress the accompanying noise. You can

In this embodiment, both the first side wall 53 and the second side wall 54 of the intake duct 44a are curved along the flow of the air to be taken in, but either one may be formed.

(Embodiment 3) As shown in FIGS. 7 and 8, the warm air blowing means 33b has a plurality of curved ribs 57 formed along the flow of the air to be taken inside the intake duct 44b. ing. The other structure is the same as that of the first or second embodiment.

As a result, turbulent flow can be suppressed and the air flow can be increased to improve the drying performance, and the accompanying noise can be suppressed. Furthermore, the user accidentally puts his / her finger through the intake port to drive the vehicle. It is possible to prevent injury due to contact with the blower fan 35 inside.

(Embodiment 4) As shown in FIG. 9, an intake filter mounting portion 58 and an intake filter 60 formed integrally with the handle 59 are unitized behind the intake duct 44 of the warm air blowing means 33. It is arranged. The other structure is the same as that of the first or second embodiment.

As a result, it is possible to prevent dust contained in the outside air from adhering to the heater 39. In addition, the unitization is further advanced, the main body of the machine is not required to be large, and the weight is not increased, and it is possible to easily change the model of the washer / dryer. Furthermore, by providing the intake filter 60, the sound pressure itself leaking to the outside can be lowered, and a washing and drying machine with suppressed noise can be realized.

The intake filter 60 may be detachably attached to the warm air blowing means 33.

(Embodiment 5) As shown in FIG. 10, the intake duct 44c of the warm air blowing means 33c is made to project rearward of the outer frame 45 to open the lower part of the projecting portion of the intake duct 44c, and A sound insulation wall 61 is formed on the.
Further, an intake filter mounting portion 58c, a handle 59c, and an intake filter 60c are arranged as a unit in a part of the intake duct 44c. The other structure is the same as that of the first embodiment.

As a result, air is sucked in from below the rear surface, so that noise such as wind noise caused by the blower fan 35 is less likely to come forward, and noise can be suppressed. Furthermore, by providing the intake filter 60c, the sound pressure itself leaking to the outside can be reduced, and a washing and drying machine with reduced noise can be realized.

[0057]

As described above, according to the invention described in claim 1 of the present invention, the outer frame cover for covering the upper part of the outer frame, the outer tank supported in the outer frame, and the central axis of rotation are in the vertical direction. And an inner duct rotatably disposed in the outer chamber, an intake duct for sucking the outside air, a blower fan and a casing for blowing the sucked outside air, and a heater for heating the outside air. , A blower fan, a casing, and a heater are unitized to form a warm air blower, which is arranged inside the outer frame cover and blows warm air into the inner tank, so that it is possible to dry with a simple structure. This makes it possible to increase the size of the machine body without increasing the weight. Furthermore, since the warm air blowing means is unitized, it becomes easy to switch the model of the washer / dryer,
Even though the basic design is the same, it is easy to switch models such as a washing and drying machine for models equipped with unitized warm air blowing means and a washing machine for models not equipped with warm air blowing means.

Further, according to the second aspect of the invention, since the intake duct is constructed so as to intake the outside air from the rear of the machine body, an air flow path with less pressure loss and air leakage is formed to increase the air volume. Therefore, the drying performance can be improved, and since the air is sucked in from the rear, noise such as wind noise caused by the blower fan is less likely to come to the front, and a washing and drying machine with reduced noise can be realized.

According to the third aspect of the present invention, since the side wall of the intake duct is formed in a curved shape along the flow of the air to be taken in, turbulent flow is suppressed and the air volume is increased to improve the drying performance. It is possible to improve the noise, and suppress the noise accompanying it.

Further, according to the invention described in claim 4, since the bottom surface of the intake duct is formed in a tapered shape so that the distance becomes narrower as it approaches the fan opening provided in the casing, turbulent flow is suppressed, The amount of air can be increased to improve the drying performance, and the noise associated therewith can be suppressed.

According to the invention described in claim 5, since a plurality of curved ribs are formed inside the intake duct along the flow of the intake air, turbulent flow is suppressed and the air flow is increased. In addition to improving the drying performance, it is possible to suppress the noise that accompanies it, and also to prevent the user from accidentally inserting his / her finger through the intake port and contacting the blower fan during operation, resulting in injury. You can

According to the sixth aspect of the present invention, the heater is provided with the intake filter, and the intake filter mounting portion for mounting the intake filter is provided as a unit in the intake duct of the warm air blowing means. It is possible to prevent dust contained in the outside air from adhering. Further, the unitization is further advanced, the machine body is large, and it is not necessary to increase the weight, and the model change of the washing machine can be further facilitated. Furthermore, by installing an intake filter, the sound pressure itself leaking outside can be lowered,
A washer / dryer with reduced noise can be realized.

Further, according to the invention described in claim 7, the intake duct is made to project rearward of the outer frame, the lower side of the projecting portion of the intake duct is opened, and the sound insulating wall is formed on the rear surface. Therefore, since the air is taken in from below the rear surface, noise such as wind noise caused by the blower fan is less likely to come forward, and a washing and drying machine with reduced noise can be realized.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a washer / dryer according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view in which a part of the warm air blowing means of the washing and drying machine is cut away.

FIG. 3 is a vertical cross-sectional view in which a part of the warm air blower of the washing and drying machine is cut away.

FIG. 4 is a bottom view of a warm air blowing unit of the washing and drying machine.

FIG. 5 is a vertical cross-sectional view of the washing and drying machine according to the second embodiment of the present invention, in which a part of the warm air blowing means is cut away.

FIG. 6 is a bottom view of a warm air blowing unit of the washing and drying machine.

FIG. 7 is a vertical cross-sectional view of the washing and drying machine according to the third embodiment of the present invention, in which a part of the warm air blowing means is cut away.

FIG. 8 is a partially cutaway bottom sectional view of a warm air blowing unit of the washing and drying machine.

FIG. 9 is a vertical sectional view of a washer / dryer according to a fourth embodiment of the present invention.

FIG. 10 is a vertical sectional view of a washer / dryer according to a fifth embodiment of the present invention.

FIG. 11 is a vertical sectional view of a conventional washer / dryer.

[Explanation of symbols]

3 outer tank 4 inner tank 33 Hot air blower 35 blower fan 36 First casing (casing) 37 Second casing (casing) 39 heater 44 Intake duct 45 outer frame 46 Outer frame cover

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3B155 AA16 BA01 BA03 BB18 CA05                       CB07 CB49 CB52 CB55 CB69                       MA01 MA02

Claims (7)

[Claims] 1. An outer frame cover for covering the upper part of the outer frame, an outer tank supported in the outer frame, and an inner tank having a central axis of rotation in the vertical direction and rotatably disposed in the outer tank. An intake duct for taking in the outside air, a blower fan and a casing for blowing the taken outside air, and a heater for heating the outside air are provided, and the intake duct, the blowing fan, the casing, and the heater are unitized to form a warm air blowing means. A washer / dryer disposed in an outer frame cover and configured to blow warm air into the inner tub. 2. The washer / dryer according to claim 1, wherein the intake duct is configured to intake the outside air from the rear of the machine body. 3. The washer / dryer according to claim 1, wherein the side wall of the intake duct is formed in a curved shape along the flow of the air to be taken in. 4. The washer / dryer according to claim 1, wherein the bottom surface of the intake duct is formed in a tapered shape such that the distance becomes narrower as it approaches the fan opening provided in the casing. 5. The washing / drying machine according to claim 3, wherein a plurality of curved ribs are formed inside the intake duct along the flow of the air to be sucked. 6. An air intake filter is provided, and an air intake filter mounting portion for mounting the air intake filter is arranged as a unit in an air intake duct of a warm air blowing unit.
The described washer / dryer. 7. The washing / drying machine according to claim 1 or 2, wherein the intake duct is projected rearward of the outer frame, the lower part of the protruding portion of the intake duct is opened, and a sound insulation wall is formed on the rear surface. .