JP2010057669A - Washing/drying machine and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing/drying machine achieving drying with the capability of rendering power consumption reduced while keeping a pressure inside a tank at a predetermined value or lower without exhausting highly humid air indoors. <P>SOLUTION: The washing/drying machine 1 includes exhaust means 13 and 13a for exhausting all or a part of air exhausted from an inner tank 29 via a drain hose 9 during the drying and a control means 138 controlling the means 13 and 13a not to exhaust all or the part of the air exhausted from the tank 29 via the hose 9 when the outdoor temperature is below the predetermined temperature or the source voltage fluctuation is above the predetermined voltage while controlling the means 13 and 13a to exhaust all or the part of the air exhausted from the tank 29 via the hose 9 when an outdoor temperature is a predetermined temperature or higher and source voltage fluctuation is at a predetermined voltage or lower. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a laundry dryer for washing and drying clothes and a dryer for drying clothes.

  Drying of laundry such as clothes using a dryer or a laundry dryer that can be performed continuously from washing to drying heats the wind of the blower fan with a heat source to create a high-temperature, low-humidity air flow that is then washed in the washing tub or This is done by blowing into the drying tub, elevating the temperature of the laundry, and evaporating the moisture from the laundry, and discharging the evaporated moisture out of the machine by the effect of blowing an air flow onto the laundry. The following patent documents 1 to 3 are known as related arts.

Evaporated moisture can be removed by supplying fresh air and exhausting the air containing moisture removed from the laundry as it is, and by using the same air circulation to cool the moisture evaporated from the laundry. There is a dehumidification method that removes moisture by condensation.
In addition, to reduce drying time and reduce the amount of water used and power consumption, air or water-cooled dehumidification is performed in the first half of the drying process, and the surrounding dry air is supplied in the second half and air is blown onto the laundry. There is a method of exhausting as it is.
JP 2008-104715 A JP 2008-110135 A Japanese Utility Model Publication No. 3-128094

By the way, with the conventional technology that exhausts the warm air after being blown onto the laundry, it is possible to shorten the time and reduce the amount of water used and power consumption. The humid air is exhausted as it is, and the indoor environment is deteriorated. For example, the indoor humidity becomes abnormally high, water droplets are condensed on the wall surface, and the wallpaper is peeled off.
On the other hand, the dehumidification method that circulates the same air and cools and evaporates the moisture evaporated from the laundry to remove the moisture increases the humidity of the circulating air, reduces the degree of moisture absorption from the laundry, and reduces the drying performance. There is a problem that it drops from the middle.

Therefore, it is conceivable to exhaust the air in the tank of the dryer or the washing / drying machine from the drain pipe and suck new air into the tank, but the pressure in the tank becomes high, and there is a door for taking in and out the laundry. The inconvenience that the door may be opened may be damaged.
In view of the above-described circumstances, the present invention provides a washing dryer and a dryer capable of performing a drying operation capable of keeping the pressure in the tank below a predetermined value without exhausting high-humidity air into the room and reducing power consumption. Objective.

  In order to achieve the above object, a laundry dryer according to the first aspect of the present invention includes an outer tub whose inside becomes a drying chamber at the time of drying, an inner tub that is rotatably disposed in the outer tub, and stores laundry. A motor for driving the inner tub, an air passage for blowing warm air to the inner tub, a drying device having a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tub, and at the time of drying A washing dryer in which air circulates in the order of air blowing means, heating means, outer tub, air passage, and air blowing means, and all or part of the air discharged from the inner tub during the drying operation Exhaust means for exhausting via and when the outside air temperature is equal to or higher than the predetermined temperature and the fluctuation of the power supply voltage is equal to or lower than the predetermined voltage, all or part of the air discharged from the inner tank by the exhaust means is drained hose While the exhaust air is exhausted, the outside air temperature is less than the predetermined temperature Other If the fluctuation of the power supply voltage exceeds a predetermined voltage, all or part of the air discharging exhaust means from the inner tank is equipped with a control means for controlling so as not to exhaust via the drain hose.

  The washing and drying machine according to the second aspect of the present invention includes an outer tub whose inside becomes a drying chamber at the time of drying, an inner tub that is rotatably arranged in the outer tub and stores laundry, and a motor that drives the inner tub. A drying device having a blowing path for blowing warm air to the inner tank, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tank, and when drying, the air is written in the blowing means, A washing and drying machine that circulates in the order of heating means, outer tub, air passage, and air blasting means to exhaust all or part of the air discharged from the inner tub through the drainage hose during the drying operation. Compare the weight of the laundry before and after the predetermined drying operation and if there is a weight loss of more than a predetermined value, all or part of the air exhausted from the inner tub by the exhaust means passes through the drainage hose. While controlling the exhaust so that the weight loss is more than a predetermined value. If no, all or part of the air discharging exhaust means from the inner tank is equipped with a control means for controlling so as not to exhaust via the drain hose.

  A washing and drying machine according to a third aspect of the present invention includes an outer tub whose inside becomes a drying chamber at the time of drying, an inner tub that is rotatably arranged in the outer tub and stores laundry, and a motor that drives the inner tub. A drying device having a blowing path for blowing warm air to the inner tank, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tank, and when drying, air is blown means, heating A washing dryer that circulates in the order of means, outer tub, air passage, and air blasting means for exhausting all or part of the air discharged from the inner tub through the drainage hose during the drying operation. When all or part of the air discharged from the inner tank is exhausted through the drainage hose by operating the exhaust means and the air blowing means, when the pressure in the outer tank is increased to a predetermined value When the rotational speed of the blower rises above a predetermined value, the exhauster Thus, all or part of the air discharged from the inner tank is controlled to be exhausted via the drain hose, while the exhaust means is discharged from the inner tank when the rotational speed of the blower means does not rise above a predetermined value. And a control means for controlling so that all or part of the air to be exhausted through the drainage hose.

  The dryer according to the fourth aspect of the present invention includes an outer tub whose inside becomes a drying chamber at the time of drying, an inner tub that is rotatably arranged in the outer tub and stores laundry, a motor that drives the inner tub, A drying device having a blowing path for blowing warm air to the inner tank, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tank, and air is blown means and heating means when drying. , A drier that circulates in the order of the outer tub, the air passage, and the air blasting means, and exhausts all or part of the air discharged from the inner tub through the drainage hose during the drying operation. When the outside air temperature is equal to or higher than the predetermined temperature and the fluctuation of the power supply voltage is equal to or lower than the predetermined voltage, the exhaust means exhausts all or a part of the air discharged from the inner tank through the drain hose, while the outside air The temperature is below the specified temperature or the power supply voltage fluctuation If it exceeds, all or part of the air discharging exhaust means from the inner tank is equipped with a control means for controlling so as not to exhaust via the drain hose.

  The dryer according to the fifth aspect of the present invention includes an outer tub whose inside becomes a drying chamber at the time of drying, an inner tub that is rotatably arranged in the outer tub and stores laundry, a motor that drives the inner tub, Equipped with an air passage for blowing warm air to the inner tank, a drying device having an air blowing means and a heating means, and a drainage hose for discharging water discharged from the outer tank, and during the drying, air is recorded in the air blowing means and heating. A dryer that circulates in the order of the means, outer tank, air passage, and air means, and exhausts all or part of the air discharged from the inner tank through the drainage hose during the drying operation. When the weight of the laundry before and after the predetermined drying operation is compared, and there is a weight loss of a predetermined value or more, all or part of the air discharged from the inner tub is exhausted through the drainage hose by the exhaust means. When controlling to exhaust, but there is no weight loss over a predetermined value All or part of the air discharging exhaust means from the inner tank is equipped with a control means for controlling so as not to exhaust via the drain hose.

  The dryer according to the sixth aspect of the present invention includes an outer tub whose inside becomes a drying chamber at the time of drying, an inner tub that is rotatably arranged in the outer tub and stores laundry, a motor that drives the inner tub, A drying device having a blowing path for blowing warm air to the inner tank, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tank, and air is blown means and heating means when drying. , A drier that circulates in the order of the outer tub, the air passage, and the air blasting means, and exhausts all or part of the air discharged from the inner tub through the drainage hose during the drying operation. When all or part of the air discharged from the inner tank is exhausted through the drainage hose by operating the air blowing means, the air is blown when the pressure in the outer tank is increased to a predetermined value. When the rotation speed of the means rises above a predetermined value, the exhaust means While all or part of the air discharged from the inner tank is controlled to be exhausted via the drain hose, the air discharged from the inner tank is exhausted when the rotational speed of the blower means does not rise above a predetermined value. And a control means for controlling not to exhaust all or a part of the air through the drain hose.

  ADVANTAGE OF THE INVENTION According to this invention, the washing-drying machine and dryer which can perform the drying operation which can maintain the pressure in a tank below predetermined value, and can reduce power consumption, without exhausting humid air indoors are realizable.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a washing / drying machine 1 according to an embodiment of the present invention.
<< Overview of Washer / Dryer 1 >>
The washing / drying machine 1 of the embodiment shown in FIG. 1 is capable of continuously performing washing, drying, or washing to drying. In the latter half of the drying process, outside air is taken into the outer tub 20 and the drainage hose 9. The remaining heat is exhausted from the air so that the exhaust during drying is not discharged indoors.
When performing the preheat drying, the washing and drying machine 1 shifts to the preheat drying when an appropriate condition is satisfied, and monitors the pressure so that the pressure in the outer tub 20 does not exceed a predetermined value during the preheat drying. Prevents unintentional opening and other problems, improving drying performance and reducing power consumption.

<< Overall configuration of the washing and drying machine 1 >>
<Exterior of washing dryer 1>
In the washing / drying machine 1, an outer frame 2 of a support member configured by combining a steel plate and a resin molded product is attached to an upper portion of a base B of a steel plate as a base support member by screwing or the like.
The outer frame 2 is provided with a front cover 22 forming a front case on the front side and an openable / closable door 3 for taking in and out the laundry 30, and a rear cover 23 forming a rear case on the back side. Is provided. The outer frame 2, the front cover 22, the back cover 23, and the base B constitute a casing of the washing / drying machine 1.
A door open button 3b that is pressed down to open the door 3 (in the direction of arrow α3 in FIG. 1) when the laundry 30 is taken in and out of the washing / drying machine 1 is disposed obliquely above the door 3.

An operation panel 106 for allowing the user to operate the washing / drying machine 1 is provided on the upper portion of the front cover 22.
The operation panel 106 includes a power switch 139 for turning on / off the washing / drying machine 1 and a plurality of operation button switches for selecting each mode such as washing, washing / drying (continuous operation of washing / drying), and drying. 113, a start switch 112 and the like that are pressed when each mode is started. Further, the operation panel 106 is provided with a 7-segment light emitting diode display 114 for informing the user of the operating state of the washing machine.

<Internal configuration of the washing and drying machine 1>
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 showing a normal drying process of the washing / drying machine 1 of the embodiment.
As shown in FIG. 2, an outer tub 20 is disposed in the housing 3 such as the front cover 22 and the back cover 23 of the washing / drying machine 1 and the door 3, and this outer tub 20 is used during a washing and rinsing process. It plays a role of storing washing water and receiving moisture removed from the laundry during the drying process.
The outer tub 20 is opened in a portion facing the front door 3 and has a cylindrical peripheral side plate 20s and a flat plate 20o inside, and the inside of the outer tub 20 is formed in a short cylindrical shape having a large diameter of a cavity. Has been.

The lower part of the outer tub 20 is supported by a plurality of suspensions 21 attached to the base B via elastic materials such as rubber, and is supported by the outer frame 2 so as not to fall by a tension coil spring (not shown). . The suspension 21 includes a compression coil spring made of an elastic material for suppressing transmission of vibration of the outer tub 20, and a damper that attenuates the vibration of the outer tub 20 during dehydration by the viscous resistance of the hydraulic oil. Has been.
Inside the outer tub 20, there is disposed a short cylindrical hollow drum 29 into which the laundry 30 is put by opening the door 3. The rotary drum 29 is a metal flange 34 for the rotating drum. Is connected directly to a drum driving motor 36 via a main shaft 35 connected to the outer tank 20 and is rotatably supported by the outer tub 20 via the main shaft 35.

For example, the rotating drum 29 is formed in a hollow short columnar shape having a cylindrical peripheral surface plate and a flat back plate that are formed on the front side using a stainless steel plate having a thin plate thickness and an outer peripheral portion. Yes. The cylindrical peripheral surface plate and the flat back plate on the outer peripheral portion of the rotary drum 29 have a large number of water through which moisture removed from the laundry during centrifugal dehydration in the dehydration process and air flow during the drying process flow. A small hole (not shown) is formed.
A plurality of lifters 33 are provided inside the rotating drum 29, and the plurality of lifters 33 are used to move the laundry 30 when the rotating drum 29 is rotated about the main shaft 35 by the drum driving motor 36. Raising and changing the position of the laundry 30 enables effective washing, drying, and the like.

In addition, vibration due to unbalance of the laundry 30 during dehydration is reduced at the outer peripheral portion of the opening on the front side of the rotary drum 29, and fluid is reduced by moving the fluid to a position opposite to the unbalance of the laundry 30. A substantially circular fluid balancer 31 is provided.
A rubber packing 38 made of an elastic material is attached to the opening on the front side (left side of FIG. 2) of the outer tub 20, and this packing 38 maintains the water tightness between the inside of the outer tub 20 and the door 3. Playing a role. This prevents water leakage during washing, rinsing and dehydration processes.
A drain port 37 opened at the bottom of the outer tub 20 is connected to the drain hose 9 via the drain valve 8.

<Drying device 6 of the washing dryer 1>
As shown in FIG. 2, the drying device 6 that dries the laundry 30 containing moisture in the rotary drum 29 is fixed (not shown) to the outer frame 2 apart from the outer tub 20 and contains moisture. A fan 61 which is a blowing means for sending an air flow to the laundry 30, a heater 62 which is a heating means for heating the air flow from the fan 61, and the heated air flow are ventilated to the laundry 30 in the rotary drum 29. And a dehumidifying duct 5 that circulates toward the fan 61.
During the drying process, cooling water (not shown) flows from the top to the bottom in contact with or close to the outer surface 5 e of the dehumidifying duct 5, and the cooling water cools the dehumidifying duct 5 to cool the dehumidifying duct 5. The water contained in the air flowing through the dehumidifying duct 5 is condensed in the direction of the arrow α4 in FIG.

The dehumidifying duct 5 of the drying device 6 and the ventilation port 32 formed in the flat back plate 20o of the outer tub 20 are connected substantially horizontally by, for example, a rubber bellows 4 having a flexible structure.
An intake valve 13 for sucking outside air into the dehumidification duct 5 is provided upstream of the fan 61 in the dehumidification duct 5, and an intake port 13 a that is opened and closed by the intake valve 13 is opened in the dehumidification duct 5. ing.
FIG. 3 is a cross-sectional view taken along line AA of FIG. 1 showing the residual heat drying in the latter half of the drying process in which the outside air intake and the drainage hose 9 exhaust the laundry dryer 1 of the embodiment.

The intake valve 13 can be freely opened and closed in the dehumidification duct 5 by a motor (not shown), and the intake valve 13 is closed to the outside air shown in FIG. From the open state with respect to the outside air shown in FIG. 3 to the arrow α2 direction. It rotates and shifts to a closed state with respect to the outside air shown in FIG. 2 during a normal drying process.
The outlet of the heater 62 provided downstream of the fan 61 of the drying device 6 and the blowing nozzle 11 connected to the opening of the outer tank 20 that blows a high-temperature air flow for drying heated by the heater 62 are the outer tank 20. Is connected via a bellows 7 having a flexible structure at a position above and outside the front surface, and the vibration of the outer tub 20 is absorbed by the internal friction of the bellows 7.

<Various sensors of the washing dryer 1>
Various sensors for measuring various conditions of the washing / drying machine 1 will be described.
Air flowing through the dehumidification duct 5 to control the current to the heater 62 is provided at the intake port (right side of the fan 61 in FIG. 2) and the discharge port (left side of the fan 61 in FIG. 2) of the fan 61 shown in FIG. A temperature sensor 152 (see FIG. 5 showing the control device 138 of the washing / drying machine 1) for detecting the temperature of the flow is provided.
Further, a temperature sensor 152 such as a thermistor for detecting the dryness of the laundry 30 is provided near the drain valve 8 shown in FIG. 2 and below the dehumidifying duct 5 (near the rubber bellows 4 shown in FIG. 2). 5).

In addition, a water level sensor 134 (see FIG. 5) that detects the water level in the outer tub 20 during the washing and rinsing process and detects the pressure in the outer tub 20 during the drying process is attached to the outer tub 20. ing. The water level sensor 134 changes the pulse of the electric signal due to the pressure applied to the diaphragm, the oscillation frequency changes, and can detect the pressure in the outer tub 20 by detecting this oscillation frequency.
In addition, when the rotating drum 29 is rotated at a high speed during the dehydrating process, the rotating drum 29 is stopped in order to stop the dewatering operation when excessive vibration occurs in the outer tub 20 that supports the rotating drum 29 via the main shaft 35. The washing / drying machine 1 is provided with a vibration sensor 153 (see FIG. 5) that detects vibration of the outer tub 20 and the like.

<Drain hose 9 connection structure of the washing dryer 1>
FIG. 4 is a longitudinal sectional view showing a connection structure between the drainage hose 9 and the drainage trap 10 according to the embodiment of the present invention, and FIG. 4A shows a normal general drainage hose 9 and a drainage trap of the embodiment. FIG. 4B shows the connection structure between the drainage hose 9 and the drainage trap 10 when the inner diameter of the drainage hole 39 of the embodiment is smaller than the outer diameter of the drainage hose 9. FIG. 4C is a longitudinal sectional view showing a connection structure between a general drain trap 10 attached to the waterproof pan P and the drain hose 9.

  The connection part of the drainage hose 9 connected to the drainage port 37 at the lower part of the outer tub 20 shown in FIG. 2 and the drainage hole 39 of the installation surface G of the washing / drying machine 1 is generally shown in FIG. Thus, the space between the drainage hose 9 and the drainage hole 39 is hermetically sealed with a sealing material 39a, etc., and the exhaust gas discharged from the outer tub 20 and passing through the drainage hose 9 flows through the drainage trap 10 as indicated by arrow β1, and is discharged. It is comprised so that it may not leak into the room | chamber interior in which the washing / drying machine 1 is installed.

  Further, when the inner diameter of the drainage hole 39 is smaller than the outer diameter of the drainage hose 9, as shown in FIG. 4B, the drainage hose 9 is fitted on one side and the other side is fitted on the drainage hole 39. The drainage hose 9 connected to the outer tub 20 and the drainage hole 39 of the installation surface G of the washing / drying machine 1 are connected via 39b, and the exhaust gas passing through the drainage hose 9 passes through the drainage trap 10 as indicated by the arrow β1. Thus, the flow is discharged so that it does not leak into the room where the washing / drying machine 1 is installed. The adapter 39b hermetically seals between the drain hose 9 and the drain hole 39.

4A and 4B illustrate the case where the sealing member 39a and the adapter 39b, which are sealing members, are provided separately from the drainage hose 9, respectively, the sealing member 39a that is a sealing member is illustrated. The adapter 39b may be configured integrally with the drain hose 9, respectively.
Further, as shown in FIG. 4C, in the case of a general drain trap 10 attached to the waterproof pan P, since the hole 10a through which water from the waterproof pan P flows is opened, the lid 39c is waterproofed. Attached to the pan P and the adapter 39b, the drainage hose 9 and the drainage trap 10 are kept sealed, and the exhaust gas passing through the drainage hose 9 flows through the drainage trap 10 as indicated by arrow β2, and the washing and drying machine 1 It is configured not to leak into the installed room.

4C illustrates the case where the drain hose 9 and the adapter 39b and the lid 39c constituting the seal member are separately configured, the drain hose 9 and the adapter 39b of the seal member are integrally configured. May be.
When the waterproof pan P is used, the washing / drying machine 1 is installed on the waterproof pan P, so that the waterproof pan P becomes the installation surface G.

<Control Device 138 of Washer / Dryer 1>
FIG. 5 is a block diagram showing a control device 138 that controls the washing / drying machine 1.
The control device 138 is connected to a commercial power source via a power switch 139, and a drive circuit for various actuators such as a transformer and a fan 61 and a heater 62 for transforming the voltage of the commercial power source to a necessary voltage such as the microcomputer 150. 154 etc.
The microcomputer 150 provided in the control device 138 stores a control program, for example, written in C language for controlling the operation of the washing / drying machine 1 in a ROM (Read Only Memory), and executes the control program. Thus, the washing / drying machine 1 is controlled.

  The microcomputer 150 is connected to an operation button input circuit 151 of an interface circuit to which operation switches such as the operation button switch 113 and the start switch 112 are connected, and various sensors such as a water level sensor 134, a temperature sensor 152, and a vibration sensor 153. In addition, various information signals such as pressing operation of the buttons (113, 112) of the user using the washing / drying machine 1 and detection signals of various sensors (134, 152, 153) in the washing process and the drying process are input. .

The microcomputer 150 is connected to respective drive circuits 154 such as a water supply valve 116, a drain valve 8, a drum driving motor 36, a fan 61, a heater 62, an intake valve 13, a cooling water valve 19, and the like. An output signal from 150 is input to each drive circuit 154, and according to the output signal, each drive circuit 154 causes various actuators such as the drain valve 8, the drum drive motor 36, the fan 61, the heater 62, and the intake valve 13 to be output. Control such as opening and closing and rotation is performed.
The microcomputer 150 is connected to a 7-segment light emitting diode display 114, a light emitting diode 156, a buzzer 157, etc. for notifying the user of the operating state of the washing machine, and displays according to the operating state of the washing dryer 1. The display by the instrument 114 and the light emitting diode 156 and the buzzer sound by the buzzer 157 are generated.

<< Overview of operation of the washer / dryer 1 >>
The continuous washing / drying operation and the drying operation of the washing / drying machine 1 shown in FIG. 1 are performed by executing a control program stored in the microcomputer 150 of the control device 138.
The continuous washing / drying operation of the drum-type washing / drying machine 1 is performed by the user pressing the door opening button 3b shown in FIG. 1 to open the door 3 to put the laundry 30 into the rotary drum 29, and the power switch 139, The operation button switch 113 for washing / drying (washing / drying continuous operation) and the start switch 112 are pressed to start.

In the washing / drying process of the washing / drying machine 1, first, water is supplied with the drain valve 8 (see FIG. 2) closed, washing water containing detergent is stored in the outer tub 20, and the drum driving motor 36 rotates the rotating drum 29. , The laundry 30 is washed with the lifter 33 and then washed, and then rinsed.
Further, in the dehydration process after washing and rinsing, the drain valve 8 is opened to drain the washing water in the outer tub 20, and the rotating drum 29 is rotated at a high speed by the drum driving motor 36, so that the wet laundry 30 is obtained. Apply centrifugal force and spin-dry.

  Then, when the amount of the middle board or the laundry 30 is equal to or less than the predetermined amount from the first half of the drying process, the rotary drum 29 is rotated and the intake valve 13 is rotated while the drain valve 8 is opened as shown in FIG. As shown in FIG. 2, the fan 61 and the heater 62 are operated in a closed state with respect to the outside air, and the air 12 heated by the heater 62 (see the arrow in FIG. 2) is blown into the rotary drum 29 through the blow nozzle 11. Thereafter, the air 12 in the outer tub 20 and the rotary drum 29 is sucked out from the vent 32 opened at the lower portion of the outer tub 20, and passes through the dehumidifying duct 5 cooled by water from the outer surface 5e in the direction of arrow α4 in FIG. After the water cooling and dehumidification, the air is heated by the heater 62 and blown again from the blowing nozzle 11 toward the laundry 30 in the rotary drum 29 to circulate the air 12.

Dehumidification of the air 12 deprived of moisture from the laundry 30 in the dehumidification duct 5 opens the cooling water valve 19 (see FIG. 5) and contacts the outer surface 5e of the dehumidification duct 5 from a cooling water supply pipe (not shown). Alternatively, cooling water (not shown) is caused to flow down in close proximity to lower the temperature in the dehumidifying duct 5, thereby reducing the saturated humidity in the dehumidifying duct 5 and promoting condensation of moisture in the moist air 12. Yes.
The cooling water that flows outside the outer surface 5e of the dehumidifying duct 5 and is water-cooled through the dehumidifying duct 5 is discharged through the drain hose 9 through the drain port 37 of the outer tub 20 through a flow path (not shown).

  Thereafter, when the amount of the laundry 30 exceeds a predetermined amount, the heater 62 is turned off and the cooling water is stopped. As shown in FIG. 3, the external air 16 sucked from the gap (not shown) below the base B by opening the intake valve 13 with respect to the outside air is outside the peripheral side plate 20 s of the outer tub 20 and While flowing outside the back plate 20o, it is heated while receiving the exhaust heat of the drum drive motor 36 and the fan 61, and is stored in the space between the upper surface of the outer tub 20 and the outer frame 2 until the middle of drying. 15 (see FIG. 3) and the air is drawn into the fan 61 through the dehumidifying duct 5 via the intake valve 13. The sucked intake air 14 is blown onto the laundry 30 to remove moisture from the laundry 30, gets wet, passes through the drain hose 9 from the drain port 37 of the outer tub 20, and seals water 10 w of the drain trap 10 shown in FIG. 2. Is discharged into the drain hole 39 (see FIG. 3).

In the case of the general drain trap 10, since the height of the water seal 10w is about 50 to 80 mm, the pressure on the drain hose 9 side is required to be about 1000 Pa or more to break the water seal 10w. Moreover, in order to suppress the odor from the drain hole 39, it is necessary to ensure a high pressure (pressure higher than a predetermined pressure) even after the water seal 10w is broken, and the high pressure is maintained during the exhaust-type drying by the drain hose. The fan 61 is controlled.
As will be described later, in the drying mode in which the intake valve 13 is opened and the air is exhausted from the drain hose 9, the door 3 opens unintentionally when the pressure in the outer tub 20 becomes higher than a predetermined value. Or the door 3 may be damaged, and when it reaches the predetermined value or more, it shifts to a normal drying process to eliminate these problems.

After the drying, in the state shown in FIG. 3, the rotation speed of the fan 61 is reduced to a pressure level that does not break the water seal 10w while keeping the pressure on the drain hose 9 side higher than the pressure on the drain hole 39 side. As shown in FIG. 2, the water seal 10w of the drain trap 10 is restored, and the drying process is completed.
As described above, after the drying is completed, the drain trap 10 is provided while suppressing the odor from the drain hole 39 by supplying water to the drain hole 39 through the drain hose 9 while maintaining the pressure on the drain hose 9 side at a predetermined level or more. The water seal 10w can be recovered.
In addition, the recovery of the water seal 10w of the drain trap 10 can be performed at the end of the drying operation of the intake and drain hose 9 exhausts when the intake valve 13 shown in FIG. Any of them after the end of the normal drying operation shown in FIG.

<< Details of control of drying process of washing dryer 1 >>
Next, the detail of control of the drying process of the washing dryer 1 is demonstrated.
6 and 7 are flowcharts showing the control flow of the drying process of the washing / drying machine 1.
As described above, the drying process of the washing and drying machine 1 is controlled by executing a control program stored in the microcomputer 150 of the control device 138.
The microcomputer 150 is activated when the power switch 139 (see FIG. 1) is pressed to turn on the power, and the state of the washing / drying machine 1 is checked and the initial setting is performed.

Then, the display 114 of the operation panel 106 shown in FIG. 1 is turned on, and a washing / drying course is set according to an instruction input by the user pressing the operation button switch 113. For example, when the drying operation button switch 113 (see FIGS. 1 and 5) is pressed and an instruction is input, a drying course is set.
If there is no instruction input, the standard washing / drying course or the previous washing / drying course is automatically set.
Then, the instruction input from the start switch 112 of the operation panel 106 by the user is monitored, and the process is branched.
When the process proceeds to the drying process, a basic control program for the drying process as shown in FIGS. 6 and 7 is executed.

First, in S01 of FIG. 6, the drum driving motor 36 rotates the rotating drum 29 in which the wet laundry 30 is accommodated, and the magnitude of the current supplied to the drum driving motor 36 is large and small. The weight (amount) of the object 30 is detected, and the amount is ranked. Note that the detected weight of the laundry 30 is S (I).
The rank of the amount of the laundry 30 is, for example, divided into ranks 1 to 8 in order from a small amount to a large amount.
In S02 of FIG. 6, it is determined whether the amount of the laundry 30 is rank 1 to rank 6.

In S02 of FIG. 6, when it is determined that the amount of the laundry 30 is rank 1 to rank 6 (Yes in S02 of FIG. 6), in S03 of FIG. 6, a predetermined time, for example, 20 to 30 minutes, FIG. Initial drying is performed as shown in FIG. The initial drying is drying that does not detect the dryness of the laundry 30.
As shown in FIG. 2, in the initial drying, the drain valve 8 is controlled to open, the fan 61 is rotated to energize the heater 62, and the drum driving motor 36 repeats forward and reverse rotations of the rotating drum 29. While changing the position of the laundry 30 inside, hot hot air (air 12) sent from the fan 61 and heated by the heater 62 is blown from the blow nozzle 11 onto the laundry 30 in the rotary drum 29. In this way, the temperature of the entire laundry 30 rises and moisture evaporates from the laundry 30.

  As described above, during the initial drying, the cooling water valve 19 (see FIG. 5) is opened and cooling water is caused to flow in contact with or close to the outer surface 5e of the dehumidifying duct 5 to cool the dehumidifying duct 5. Therefore, the air containing moisture absorbed from the laundry 30 flowing through the dehumidifying duct 5 (in the direction of the arrow α4 in FIG. 2) by the operation of the fan 61 is cooled, and the water condensed from the air is removed from the dehumidifying duct 5. The water is drained through the drain 37 of the tank 20, the drain valve 8, and the drain hose 9. Dehumidification in the dehumidification duct 5 using this cooling water is referred to as water-cooled dehumidification.

Subsequently, sensor drying is performed in S04 of FIG. The sensor drying is drying for detecting the dryness of the laundry 30, and the rest is the same as the initial drying in S03 of FIG.
The dryness of the laundry 30 is detected from the temperature detected by the temperature sensor 152 (see FIG. 5) near the drain valve 8 and the temperature detected by the temperature sensor 152 (see FIG. 5) below the dehumidifying duct 5. Dryness is detected.

Subsequently, in S05 of FIG. 6, it is determined whether or not the dryness of the laundry 30 has become equal to or greater than a predetermined value ΔT1.
In S05 of FIG. 6, when it is determined that the dryness of the laundry 30 is less than the predetermined value ΔT1 (No in S05 of FIG. 6), the process proceeds to S04 of FIG.
On the other hand, when it is determined in S05 in FIG. 6 that the laundry 30 is dried to a predetermined value ΔT1 or more (Yes in S05 in FIG. 6), finish drying is performed in S06 in FIG.
The finish drying is a drying operation similar to the initial drying in S03 of FIG. 6, and is performed for a predetermined time.

After the finish drying in S06 in FIG. 6, the rotation of the rotary drum 29 and the fan 61 is stopped, the energization to the heater 62 is stopped, the drain valve 8 is controlled to be closed, and the drying process is finished (FIG. 6). S07).
In S02 of FIG. 6, when it is determined that the amount of the laundry 30 is out of rank 1 to rank 6, that is, the amount of the laundry 30 is rank 7 or rank 8 (No in S02 of FIG. 6), FIG. In S08, as shown in FIG. 2, initial drying is performed for a predetermined time, for example, 20 to 30 minutes.
The operation of the initial drying washing dryer 1 of S08 in FIG. 6 is the same as the initial drying of S03 in FIG.

Subsequently, in S09 in FIG. 6, sensor drying (see FIG. 2) for detecting the dryness of the laundry 30 is performed.
The operation of the sensor drying washing dryer 1 of S09 in FIG. 6 is the same as the sensor drying of S04 in FIG.
Subsequently, in S10 of FIG. 6, it is determined whether or not 75 minutes have elapsed since the start time of S00 of FIG. 6 or whether or not the degree of drying of the laundry 30 has become a predetermined value ΔT2 or more.
ΔT2 may be set to ΔT2 = ΔT1 (see S05 in FIG. 6), or ΔT2 may be set to a value different from ΔT1.

In S10 of FIG. 6, when it is determined that 75 minutes have not elapsed since the start of S00 of FIG. 6 and the dryness of the laundry 30 is less than the predetermined value ΔT2 (No in S10 of FIG. 6), The process proceeds to S09 in FIG. 6 and the sensor drying is continued.
On the other hand, in S10 of FIG. 6, when 75 minutes have elapsed from the start of S00 of FIG. 6 or when it is determined that the dryness of the laundry 30 is equal to or greater than the predetermined value ΔT2 (Yes in S10 of FIG. 6), The process proceeds to S11 in FIG. 6, and the temperature sensor 152 (see FIG. 5) determines whether or not the outside air temperature at the start of S00 in FIG. 6 is 15 ° C. or more and the power supply voltage is within 100 ± 5V. .
Note that the outside air temperature and the power supply voltage may be determined using any outside air temperature and power supply voltage up to the current time after the start (excluding the start time), not at the start time.

6, when it is determined that the outside air temperature at the start of S00 in FIG. 6 is less than 15 ° C. or the power supply voltage is not in the range of 100 ± 5 V (No in S11 in FIG. 6), FIG. The process proceeds to S05.
Here, when the outside air temperature is less than 15 ° C., the process does not shift to the remaining heat drying (control after S14 in FIG. 6) because the drying in the remaining heat drying may be insufficient when the outside air temperature is low. .
In addition, when the power supply voltage is not in the range of 100 ± 5 V, it does not shift to the residual heat drying because there is a possibility that a problem may occur in the control when the fluctuation of the power supply voltage is large.
Of course, the outside air temperature may be set to a predetermined temperature other than 15 ° C., and the fluctuation range of the power supply voltage may be set to a fluctuation range other than ± 5V.

  On the other hand, when it is determined in S11 of FIG. 6 that the outside air temperature at the start (S00 of FIG. 6) is 15 ° C. or more and the power supply voltage is within 100 ± 5 V (Yes in S11 of FIG. 6), FIG. 6, the drum driving motor 36 rotates the rotating drum 29 in which the laundry 30 is stored, and the weight of the laundry 30 is determined according to the magnitude of the current supplied to the drum driving motor 36. Is detected. The detected weight of the laundry 30 is S (II).

Subsequently, in S13 of FIG. 6, is S (II) ≦ S (I) + constant using S (I) obtained in S01 of FIG. 6 and S (II) obtained in S12 of FIG. Determine whether or not. That is, it is determined whether the laundry 30 has been dried to such an extent that preheat drying can be performed. When the laundry 30 does not dry well, a normal drying process shown in FIG. 2 is performed.
In S13 of FIG. 6, when it is determined that S (II) ≦ S (I) + constant is not satisfied (No in S13 of FIG. 6), the process proceeds to S05 of FIG.

On the other hand, if it is determined in S13 of FIG. 6 that S (II) ≦ S (I) + constant (Yes in S13 of FIG. 6), the rotational speed (rotation) of the fan 61 is determined in S14 of FIG. (Speed) is reduced to the minimum so that the pressure in the outer tub 20 becomes too high and the door 3 does not open. Incidentally, the minimum rotational speed of the fan 61 is, for example, 4800r (times) / min (minutes), and the maximum rotational speed is 13500r (times) / min (minutes). Note that the minimum rotation speed of the fan 61 is not limited to this value.
Subsequently, in S15 of FIG. 6, the heater 62 is turned off and the intake valve 13 shown in FIG. 2 is moved in the direction of the arrow α1 in order to perform the residual heat drying for performing the exhaust operation through the drainage hose 9 with the heater 62 turned off. As shown in FIG. 3, the air is rotated and opened to the outside air, and the outside air is taken into the dehumidifying duct 5 through the air inlet 13 a and the flow path formed by the dehumidifying duct 5 is closed.

  As a result, as shown in FIG. 3, the external air 16 sucked from the gap (not shown) below the base B of the washing / drying machine 1 flows outside the peripheral side plate 20 s and outside the back plate 20 o of the outer tub 20. However, the hot air inside the casing 15 is heated while receiving the exhaust heat of the drum driving motor 36 and the fan 61 and accumulated in the space between the upper surface of the outer tub 20 and the outer frame 2 until the middle of drying (see FIG. 3). At the same time, the air is sucked into the fan 61 through the dehumidifying duct 5 through the air inlet 13a. The sucked intake air 14 is blown to the laundry 30 as the air 12 indicated by the arrow shown in FIG. 3 to take away moisture from the laundry 30, and the wet air 12 passes through the drain hose 9 from the drain outlet 37 of the outer tub 20. As a result, the water seal 10w (see FIG. 2) of the drain trap 10 is broken and discharged into the drain hole 39 (see FIG. 3).

Subsequently, in S16 of FIG. 7, the rotational speed (rotational speed) R of the fan 61 is increased until the pressure in the outer tub 20 detected by the water level sensor 134 (see FIG. 5) reaches a predetermined set value. The rotation speed (rotation speed) R of the fan 61 is increased at 100r (times) / min (min) up to 10000r (times) / min (min), and exceeds 10000r (times) / min (min), Increase at 50r (times) / min (min).
The predetermined set value for the pressure in the outer tub 20 detected by the water level sensor 134 (see FIG. 5) is, for example, 1.4 kHz (198 water columns mm). The predetermined set value of the pressure in the outer tub 20 detected by the water level sensor 134 can be selected as appropriate.

Here, when the pressure in the outer tub 20 detected by the water level sensor 134 does not reach a predetermined set value, here, 1.4 kHz (198 water column mm), the fan 61 operates at the maximum rotational speed.
Then, it is determined whether or not the rotational speed (rotational speed) of the fan 61 is R ≧ 11500.
In S16 of FIG. 7, when it is determined that the rotational speed (rotational speed) R of the fan 61 is not R ≧ 11500 (No in S16 of FIG. 7), the rotational speed (rotational speed) R of the fan 61 does not increase. 7 is considered to be clogged for some reason, the intake valve 13 is closed to the outside air as shown in FIG. 2 in S17 of FIG. 7, and the heater 62 is connected to the heater 62 in S18 of FIG. Energized, the process proceeds to S05 in FIG. 6 and proceeds to a normal drying process.

On the other hand, when it is determined in S16 of FIG. 7 that the rotational speed (rotational speed) R ≧ 11500 of the fan 61 (Yes in S16 of FIG. 7), in S19 of FIG. 7, the intake valve 13 in S15 of FIG. As shown in FIG. 3, it is determined whether or not a predetermined time t has elapsed since opening to the outside air. Here, t minutes is set as follows, for example, depending on the current rotational speed (rotational speed) R of the fan 61. For example,
11500 ≦ the number of rotations of the fan 61 (rotational speed) R <12500, 55 minutes,
12500 ≦ the rotation speed of the fan 61 (rotational speed) R <13300, 45 minutes,
13300 ≦ the rotation speed (rotational speed) R 1 of the fan 61 is 35 minutes.

In S19 of FIG. 7, when it is determined that the predetermined time t has not elapsed since the intake valve 13 is opened to the outside air as shown in FIG. 3 (No in S19 of FIG. 7), this state Continue.
On the other hand, if it is determined in S19 of FIG. 7 that the predetermined time t has elapsed since the intake valve 13 was opened to the outside air as shown in FIG. 3 (Yes in S19 of FIG. 7), In S20 of FIG. 7, the drying process is completed, the fan 61 is stopped, the intake valve 13 is operated as indicated by the arrow α2 in FIG. 3, and the intake valve 13 is set against the outside air as shown in FIG. Block. And since the water seal 10w of the drain trap 10 is discharged as shown in FIG. 3, the water supply valve 116 (see FIG. 5) is opened for 8 seconds, and the drain trap 10 shown in FIG. Water is supplied to the drain trap 10 through the tank 20 and the drain hose 9, and the water seal 10w having water in the drain trap 10 shown in FIG. 2 is recovered.

Subsequently, in S21 of FIG. 7, the drain valve 8 is closed, and the drying process is ended (S22 of FIG. 7).
The above is the flow of control of the drying process shown in FIGS.
Note that the control from S08 in FIG. 6 to S21 in FIG. 7 may be appropriately performed regardless of the amount of the laundry 30.

<< Response when drainage hose 9 is clogged >>
Here, it is assumed that the drainage hose 9 is clogged for some reason.
When the drain hose 9 is clogged and the process proceeds to a drying process in which the intake valve 13 shown in FIG. 3 is opened to the outside air, exhaust from the drain hose 9 becomes difficult, and the pressure in the outer tub 20 increases. The door 3 is not intended to be pushed out of the state shown in FIG. 1, and the door 3 is pushed out as shown by an arrow α3 in FIG.
As the state where the drain hose 9 is clogged, the following first to third cases can be considered.

As a first case, the drainage hose 9 may be clogged at the start of washing / drying.
In this case, in the washing process, the water level sensor 134 (see FIG. 5) detects the water level in the outer tub 20 and displays “drainage error” on the display 114 of the operation panel 106 shown in FIG. Encourage action.

  As a second case, when the rotating drum 29 containing the wet laundry 30 does not rotate in the dehydration process after washing, the laundry 30 dries out poorly. In this case, in S13 in FIG. 6, the weight S (II) of the laundry 30 after dehydration and drying becomes larger than “S (I) + constant”, and in S13 in FIG. 6, S (II) ≦ S ( I) + it is determined that it is not a constant, so the process proceeds to S05 in FIG. 6 and the normal drying process in which the intake valve 13 shown in FIG. 2 is blocked from outside air and the flow path in the dehumidifying duct 5 is secured. Since it transfers, the situation where the pressure in the outer tank 20 increases abnormally can be avoided.

  As a third case, when the drainage hose 9 is blocked during the drying process after dehydration, the rotation speed (rotational speed) R of the fan 61 does not increase when the pressure in the outer tub 20 increases. 7, it is determined that the rotation speed (rotational speed) R ≧ 11500 of the fan 61 is not satisfied, and the process proceeds to S 17 in FIG. 7 where the intake valve 13 shown in FIG. Since it transfers to the normal drying process with which the path | route was ensured, the situation where the pressure in the outer tank 20 increases abnormally can be avoided.

  Also in the second case and the third case, the display 114 (see FIG. 1) of the operation panel 106 of the washing / drying machine 1 shown in FIG. 1 displays “drainage error” during or after drying. To inform the user. Alternatively, the user may be notified by making a sound with the buzzer 157 (see FIG. 5) during or after drying, or may be notified to the user by using the display 114 and the buzzer 157 together.

<< Action and effect >>
Therefore, according to the washing / drying machine 1 of the present embodiment, the upper surface of the laundry 30, the rotating drum 29, the outer tub 20 and the outer tub 20 and the space of the outer frame 2 as shown in FIG. By performing the residual heat drying using the heat stored in the housing internal air 15 and the like and the dry external air 16 stored in the housing, the power consumption in the latter half of the drying process can be reduced.

In other words, during the drying operation, all or a part of the air discharged from the rotary drum 29 is discarded from the drainage hose 9 to the drainage hole 39, so that the drying operation can be performed without exhausting the humid air into the room. Power consumption can be reduced without deteriorating the indoor environment.
Accordingly, the washing and drying machine capable of drying operation capable of reducing power consumption without opening the door 3 or damaging it without keeping the pressure in the outer tub 20 below a predetermined value without exhausting humid air indoors. 1 is obtained.

FIG. 8 is a cross-sectional view taken along the line AA of FIG. 1 showing the latter half of the drying process in which the outside air intake and the drainage hose 9 exhaust of the washing / drying machine 1 of the modified embodiment are performed.
As shown in FIG. 8, the intake port 13 of the intake valve 13 provided on the upstream side of the fan 61 is directed toward the upper surface plate of the front cover 22 and the upper surface plate 2a side of the outer frame 2 that form the upper surface plate of the housing. By providing it, the air heated by the exhaust heat from the outer tub 20, drum driving motor 36, fan 61, etc. and accumulated in the uppermost part of the washing / drying machine 1 can be sucked in efficiently. The amount can be further reduced.

In the present embodiment, the laundry dryer 1 has been described as an example. However, the present invention can be applied to a dryer that only dries laundry.
Further, in the present embodiment, the drum-type washing / drying machine 1 has been described as an example. However, the present invention can also be effectively applied to washing / drying machines and dryers other than the drum type.

It is a perspective view which shows the washing-drying machine which concerns on embodiment of this invention. It is an AA principal part sectional view of Drawing 1 showing the usual drying process of the washing dryer of an embodiment. It is an AA line principal part sectional view of Drawing 1 showing the remaining heat drying in the latter half of the drying process which performs outside air intake of the washing dryer of an embodiment, and drainage hose exhaust. (a) is a longitudinal cross-sectional view which shows the connection structure of the normal common drainage hose and drain trap of embodiment, (b) is the case where the internal diameter of the drainage hole of embodiment is smaller than the outer diameter of a drainage hose It is a longitudinal cross-sectional view which shows the connection structure of the drain hose of this, and a drain trap, (c) is a longitudinal cross-sectional view which shows the connection structure of the general drain trap attached to the waterproof pan of embodiment, and a drain hose is there. It is a block diagram which shows the control apparatus which controls the washing / drying machine of embodiment. It is a flowchart which shows the flow of control of the drying process of the washing dryer of embodiment. It is a flowchart which shows the flow of control of the drying process of the washing dryer of embodiment. It is an AA line principal part sectional view of Drawing 1 showing the latter half of the drying process which performs the outside air intake of the modified form washing washer 1 and drainage hose exhaust.

Explanation of symbols

1 Laundry dryer (dryer)
5 Dehumidification duct (air duct, drying device)
6 Drying equipment,
9 Drain hose 13 Intake valve (exhaust means, intake means)
13a Intake port (exhaust means, intake means)
20 Outer tank 29 Rotating drum (Inner tank)
30 Laundry 36 Drum drive motor (motor that drives the inner tub)
39a Seal material (seal member)
39b Adapter (seal member)
39c Lid (seal member)
61 Fan (air blowing means, drying device)
62 Heater (heating means, drying device)
114 Display 138 Control device (control means)
157 Buzzer (notification sound generator)

Claims (12)

In order to blow warm air into the inner tub, an outer tub that is a drying chamber when drying, an inner tub that is rotatably arranged in the outer tub and that stores laundry, a motor that drives the inner tub, and the inner tub A drying device having a blowing path, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tub, and when drying, the air is blown, the heating means, the outer tub, the A washing and drying machine that circulates in the order of the air passage and the air blowing means,
Exhaust means for exhausting all or part of the air discharged from the inner tank through the drain hose during the drying operation;
When the outside air temperature is equal to or higher than the predetermined temperature and the fluctuation of the power supply voltage is equal to or lower than the predetermined voltage, the exhaust means exhausts all or a part of the air discharged from the inner tank through the drain hose, When the outside air temperature is less than the predetermined temperature or the fluctuation of the power supply voltage exceeds the predetermined voltage, the exhaust means is controlled so that all or part of the air discharged from the inner tank does not exhaust through the drain hose. A washing / drying machine, comprising: In order to blow warm air into the inner tub, an outer tub that is a drying chamber when drying, an inner tub that is rotatably arranged in the outer tub and that stores laundry, a motor that drives the inner tub, and the inner tub A drying device having a blowing path, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tub, and when drying, the air is blown, the heating means, the outer tub, the A washing and drying machine that circulates in the order of the air passage and the air blowing means,
Exhaust means for exhausting all or part of the air discharged from the inner tank through the drain hose during the drying operation;
When the weight of the laundry before and after a predetermined drying operation is compared, and there is a weight decrease of a predetermined value or more, all or part of the air discharged from the inner tub by the exhaust means passes through the drain hose. If the weight does not decrease more than the predetermined value, the exhaust means is controlled not to exhaust all or part of the air discharged from the inner tank via the drain hose. A washing / drying machine, comprising: In order to blow warm air into the inner tub, an outer tub that is a drying chamber when drying, an inner tub that is rotatably arranged in the outer tub and that stores laundry, a motor that drives the inner tub, and the inner tub A drying device having a blowing path, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tub, and when drying, the air is blown, the heating means, the outer tub, the A washing and drying machine that circulates in the order of the air passage and the air blowing means,
Exhaust means for exhausting all or part of the air discharged from the inner tank through the drain hose during the drying operation;
When all or part of the air discharged from the inner tank is exhausted through the drain hose by operating the air blowing means and the pressure in the outer tank is increased to a predetermined value In addition, when the rotational speed of the air blowing means rises above a predetermined value, the exhaust means controls to exhaust all or part of the air exhausted from the inner tank via the drain hose, Control means for controlling the exhaust means so that all or part of the air exhausted from the inner tank is not exhausted via the drain hose when the rotational speed of the blower means does not rise above the predetermined value; A washing and drying machine comprising: The washing / drying machine according to any one of claims 1 to 3, wherein the exhaust unit is an intake unit provided in an air passage on an upstream side of the blow unit. The drainage hose is connected to the drainage hole through a seal member that seals between the drainage hose and the drainage hole,
The exhaust means exhausts all or a part of the air discharged from the inner tank to the drain hole through the drain hose. The washing dryer as described in. 2. When an abnormality of the drainage hose is detected during the drying operation, the fact is notified by at least one of a display device and a notification sound generator during the drying operation or after the drying operation. The washing / drying machine according to any one of claims 5 to 6. In order to blow warm air into the inner tub, an outer tub that is a drying chamber when drying, an inner tub that is rotatably arranged in the outer tub and that stores laundry, a motor that drives the inner tub, and the inner tub A drying device having a blowing path, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tub, and when drying, the air is blown, the heating means, the outer tub, the A dryer that circulates in the order of the air passage and the air blowing means,
Exhaust means for exhausting all or part of the air discharged from the inner tank through the drain hose during the drying operation;
When the outside air temperature is equal to or higher than the predetermined temperature and the fluctuation of the power supply voltage is equal to or lower than the predetermined voltage, the exhaust means exhausts all or a part of the air discharged from the inner tank through the drain hose, When the outside air temperature is less than the predetermined temperature or the fluctuation of the power supply voltage exceeds the predetermined voltage, the exhaust means is controlled so that all or part of the air discharged from the inner tank does not exhaust through the drain hose. And a control means. In order to blow warm air into the inner tub, an outer tub that is a drying chamber when drying, an inner tub that is rotatably arranged in the outer tub and that stores laundry, a motor that drives the inner tub, and the inner tub A drying device having a blowing path, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tub, and when drying, the air is blown, the heating means, the outer tub, the A dryer that circulates in the order of the air passage and the air blowing means,
Exhaust means for exhausting all or part of the air discharged from the inner tank through the drain hose during the drying operation;
When the weight of the laundry before and after a predetermined drying operation is compared, and there is a weight decrease of a predetermined value or more, all or part of the air discharged from the inner tub by the exhaust means passes through the drain hose. If the weight does not decrease more than the predetermined value, the exhaust means is controlled not to exhaust all or part of the air discharged from the inner tank via the drain hose. And a control means. In order to blow warm air into the inner tub, an outer tub that is a drying chamber when drying, an inner tub that is rotatably arranged in the outer tub and that stores laundry, a motor that drives the inner tub, and the inner tub A drying device having a blowing path, a blowing means and a heating means, and a drain hose for discharging water discharged from the outer tub, and when drying, the air is blown, the heating means, the outer tub, the A dryer that circulates in the order of the air passage and the air blowing means,
Exhaust means for exhausting all or part of the air discharged from the inner tank through the drain hose during the drying operation;
When all or part of the air discharged from the inner tank is exhausted through the drain hose by operating the air blowing means and the pressure in the outer tank is increased to a predetermined value In addition, when the rotational speed of the air blowing means rises above a predetermined value, the exhaust means controls to exhaust all or part of the air exhausted from the inner tank via the drain hose, Control means for controlling the exhaust means so that all or part of the air exhausted from the inner tank is not exhausted via the drain hose when the rotational speed of the blower means does not rise above the predetermined value; A dryer characterized by comprising. The dryer according to any one of claims 7 to 9, wherein the exhaust unit is an intake unit provided in a ventilation path upstream of the blow unit. The drainage hose is connected to the drainage hole through a seal member that seals between the drainage hose and the drainage hole,
The exhaust means exhausts all or a part of the air discharged from the inner tank to the drain hole through the drain hose. The dryer as described in. 8. When an abnormality of the drainage hose is detected during the drying operation, the fact is notified by at least one of a display device and a notification sound generator during the drying operation or after the drying operation. The dryer according to any one of claims 11 to 11.

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