JP2023014528A - Washing machine - Google Patents

Abstract

To provide a washing machine suitable for humidifying dry clothing to smooth out wrinkles.SOLUTION: A washing machine has an inner tank 8 in an outer tank 9. Air is circulated from the inner tank 8 through a drying duct 12 formed between the inner tank 8 and the outer tank 9, while cooling water can pass through the outer tank 9-side of the drying duct 12. After a first heating step of sending warm air into the inner tank 8 while passing water through the outer tank-side of the drying duct 12 is performed, a second heating step of sending warm air into the inner tank 8 while stopping passing water to the outer tank 9-side of the drying duct 12 is performed.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a washing machine having a drying function that humidifies dry clothes so that wrinkles can be smoothed out.

To smooth out wrinkles in clothes, the clothes must be damp. Conventionally, in a washing machine with a drying function, wrinkles can be smoothed out at the start of drying by drying the wet clothes after washing or having the user put the wet clothes into the washing machine to dry them. was.

Regarding this point, Patent Document 1 proposes to prevent the occurrence of wrinkles during drying even for clothes that have been washed for a certain period of time, and to finish the clothes by smoothing out the wrinkles on the dried clothes. For the purpose of this, "A dryer that has a rotating drum in which clothes are stored, a motor that drives the rotating drum, and a housing that supports the rotating drum, and performs a drying operation by rotating the rotating drum a blower unit for generating wind blowing against the clothes accommodated in the rotating drum during the drying operation; a heater for warming the wind generated by the blowing unit; A hot air duct leading to an air outlet, and a water supply means for supplying water from a water supply valve to the middle of the hot air duct as it is without being atomized during the drying operation, after moistening the dried clothes. When the course of smoothing the wrinkles of the clothes by drying them is set, the water supplied to the middle of the hot air duct by the water supply means is mixed with the hot air warmed by the heater in the hot air duct. A dryer characterized by being mixed, turned into mist, and supplied to the rotating drum from the outlet.

In addition, in Patent Document 2, for the purpose of efficiently removing various stains adhering to the laundry, "an outer tank capable of storing liquid inside and a rotatably supported in the outer tank, and the laundry is removed. A drum-type washing machine comprising a housed drum, a drum motor for rotationally driving the drum, water supply means for supplying water to the outer tub, and operation control means for controlling the drum motor and the water supply means, wherein: a first heating means for heating the water before being supplied from the water supply means into the outer tank; and a second heating means for heating the water supplied to the drum or the outer tank, wherein the first heating means and A drum-type washing machine characterized in that at least one of the second heating means produces steam."

JP 2012-176270 A JP 2015-204927 A

In recent years, washing machines with a drying function are required to reduce wrinkles in dry clothes in addition to removing wrinkles in wet clothes after washing. In this regard, in Patent Document 1, the cooling water is atomized (atomized) by high-speed air and sprayed on the clothes, and in Patent Document 2, water is stored in the retention portion and heated. This creates steam.

However, the method described in Patent Document 1, in which water is sprayed from the upper part of the clothes using mist water supply to moisten the clothes, has a problem that unevenness occurs in wet parts and wrinkles cannot be smoothed out as a whole.

Moreover, when water is allowed to stay in the tank as described in Patent Document 2, it becomes difficult for the air in the tank to warm due to the temperature of the liquid, and there is a problem that it takes time to heat the tank and generate steam.

In view of the above, it is an object of the present invention to provide a washing machine suitable for adding moisture to dry clothes to smooth out wrinkles.

An inner tank is provided within an outer tank, air is circulated from the inner tank through a drying duct formed between the inner tank and the outer tank, and cooling water is passed through the outer tank side of the drying duct. a first heating step of sending hot air into the inner tub and passing water through the outer tub side of the drying duct; and after performing the first heating step, sending hot air into the inner tub and drying duct. A washing machine characterized by executing a second heating step of stopping water flow to the outer tub side of the.

ADVANTAGE OF THE INVENTION According to this invention, it can humidify clothes by making it high humidity in a short time, and can smooth out wrinkles of clothes, without making unevenness. In addition, the moisture that humidifies the clothes absorbs the odor inside the clothes, and by drying (evaporating) it, a deodorizing effect can be obtained.

In addition, according to the embodiment of the present invention, it is possible to obtain the effect of reducing wrinkles in folded clothes, wrinkles in sitting position, and wrinkles remaining in clothes dried after washing within 30 minutes. tidying up).

Sectional drawing which shows the internal structure of the washing-drying machine of embodiment. The figure which shows the structure of the water-cooling dehumidification mechanism of a hot air. FIG. 4 is a diagram showing the configuration of a drainage channel for cooling water and condensed water; The figure which shows the structure of another drainage path of cooling water and dew condensation water. The figure which provided the windshield rib on the air path through which warm air flows. FIG. 4 is a diagram showing the flow of cooling water when windshield ribs are provided on the air path through which warm air flows; The figure which shows the other example of a heat exchange plate. The figure which simply described only the part relevant to this invention of the washer-dryer of FIG. FIG. 5 is a diagram showing a processing procedure according to Example 1 for reducing wrinkles in dried clothes; FIG. 5 is a diagram showing the processing status of various operation ends in each process; FIG. 4 is a diagram showing paths of hot air 33 and cooling water 34a in a first heating step S1; The figure which shows the relationship between the warm air 33 and the cooling water droplet 34b in 2nd heating process S2. FIG. 10 is a diagram showing a processing procedure according to a second embodiment for reducing wrinkles in dried clothes;

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, a basic configuration example of a washing machine having a drying function to which the present invention can be applied will be described with reference to FIGS. 1 to 6. FIG.

It should be noted that the example of use in the example of the basic configuration of the washing machine having a drying function, which will be described with reference to FIGS. In contrast, the present invention achieves this by retaining and utilizing the mechanisms and functions shown herein to reduce wrinkling of the clothes as they are drying. The reduction of wrinkles in clothes being dried using the washing machine of FIGS. 1 to 6 will be described later with reference to FIGS. 7 to 11. FIG.

To state the conclusion very briefly, in the drying of clothes containing moisture, the moisture contained in the warm air after warming the clothes is condensed by cooling water to remove it. For the purpose of smoothing the wrinkles of worn clothes, warm air is humidified with cooling water to give moisture to the clothes. In other words, the cooling water in the former functions as dehumidified water, while the latter functions as humidifying water.

First, a basic configuration example of a washing machine having a drying function to which the present invention can be applied will be described with reference to FIGS. 1 to 6. FIG. FIG. 1 is a cross-sectional view showing the internal structure of the washing/drying machine 1. As shown in FIG. In FIG. 1, each direction of "up", "down", "front", "rear", "left", and "right" indicates the direction seen from the user who uses the washer/dryer 1. explain.

As shown in FIG. 1, the washer/dryer 1 is a vertical type washer/dryer in which the rotation axis of a washing/drying tub 8 (inner tub) into which laundry is put is substantially vertical.

A top cover 3 is provided on the top of a housing 2 of the washing and drying machine 1, and an outer lid 4 is provided on the top cover 3. - 特許庁By opening the outer lid 4 to the rear side, the opening part 5 is opened, and clothes, etc. (laundry) can be taken in and out of the washing and dehydrating tub 8. - 特許庁

On the back side (rear side) of the top cover 3, there are provided a water supply hose connection port 6 from a water faucet and a water suction hose connection port (not shown) for sucking remaining bath water.

The washing/drying machine 1 includes a washing/dehydrating tub 8, an outer tub 9, a driving device 10, a detergent/finishing agent charging device 11, a water supply unit 7, a drying duct 12, and the like.

The washing and dewatering tub 8 has a cylindrical shape with a bottom, and has a body plate 8a made of a stainless steel plate or the like. A large number of through holes 8a1 (only some of which are shown) are formed in the body plate 8a for water flow and ventilation. The washing and dehydrating tub 8 has rotary blades 8b on its inner bottom surface.

The outer tub 9 is made of synthetic resin, has a cylindrical shape with a bottom, coaxially encloses the washing and dehydrating tub 8, and has an outer tub cover 9a on the top. A user of the washer/dryer 1 can put laundry in and out of the washing/drying tub 8 through the opening 5 by opening the outer lid 4 and the lid member 9b of the outer tub cover 9a.

The driving device 10 is arranged at the center of the outside of the bottom surface of the outer tub 9 . This driving device 10 has a motor 10a and a clutch mechanism 10b, and is configured such that a rotating shaft 10c of the driving device 10 penetrates the outer tub 9 and is coupled to the washing and dehydrating tub 8 and the rotary blades 8b. . The clutch mechanism 10b has a function of transmitting the rotational power of the motor 10a to at least one of the washing and dehydrating tub 8 and the rotary blades 8b.

The water supply unit 7 is provided on the back side of the top cover 3 . The water supply unit 7 supplies tap water from the water supply hose connection port 6 to the supply device 11 . Further, the water supply unit 7 can inject tap water or bath water from the water supply hose connection port 6 into the outer tub 9 from between the outer tub 9 and the washing and dehydrating tub 8 via the water injection hose 13 . . Further, the water supply unit 7 can supply tap water from the water supply hose connection port 6 to a water cooling dehumidification mechanism (see FIG. 2), which will be described later, through the cooling nozzle 14 .

A depressed portion 15 provided on the bottom surface of the outer tub 9 communicates with a lower communicating pipe 16 . The lower communication pipe 16 is connected through a drain valve 17 so as to communicate with the washing water drain channel 18 . A drain hose (not shown) is connected to the washing water drain path 18 for discharging the drain water to the outside of the machine.

Incidentally, by closing the drain valve 17, it becomes possible to store washing water and rinsing water in the outer tub 9. Also, by opening the drain valve 17 , the water (washing water, rinsing water) in the outer tub 9 can be drained out of the washer/dryer 1 through the washing water drain path 18 .

The configuration of the hot air supply means for supplying hot air to the washing and dehydrating tub and the hot air circulation path in the drying operation will be described below.

The drying duct 12, which is an air passage, is molded from a synthetic resin and installed integrally on the back surface of the outer tank 9, and constitutes a water-cooling dehumidifying mechanism (see FIG. 2), which will be described later. The water supply unit 7 supplies cooling water (tap water) to this water cooling dehumidification mechanism. Cooling water flows down along the wall surface (heat exchange plate such as a stainless steel metal plate) of the drying duct 12, enters the depressed portion 15, passes through the lower communication pipe 16 and the washing water drainage channel 18, and is discharged out of the machine.

The outlet of the drying duct 12 is connected to the intake port of the fan 20, which is the air blower, with a suction bellows 28, and the outlet of the fan 20 is connected to the heater 21. As shown in FIG. An outlet of the heater 21 is connected to a blowout nozzle 24 via a blower duct 22 and a rubber bellows tube 23 . That is, the fan 20, which is the air blower, blows hot air from the blow nozzle 24 onto the laundry put into the washing and dehydrating tub 8. As shown in FIG.

When the fan 20 is driven, since the intake port of the fan 20 is connected to the drying duct 12, moist warm air in the outer tub 9 flows into the drying duct 12. - 特許庁The hot air that has been water-cooled and dehumidified in the drying duct 12 is discharged from the fan 20, then heated by the heater 21, and then turned into high-temperature, low-humidity air and blown out from the blowing nozzle 24 into the washing and dehydrating tub 8. be done.

Although not shown, a temperature sensor is installed between the lower communicating pipe 16 and the drain valve 17 to detect the temperature of the water and the temperature of the air discharged from the washing water drain 18 during the drying operation. is provided.

The washing and dewatering tub 8 has a balance ring (also called a fluid balancer) 8c made of synthetic resin or the like on the upper edge of the body plate 8a. The balance ring 8c is configured by enclosing a fluid with a large specific gravity inside, and when the washing and spin-drying tub 8 rotates, the fluid moves within the balance ring 8c when eccentricity occurs due to the bias of the laundry. has a function of canceling eccentricity and maintaining rotational balance.

The outer tank cover 9 a has a substantially semicircular inlet and is attached to the upper edge of the outer tank 9 . A lid member 9b is attached to the inlet so that it can be opened and closed. Although not shown, a connection port to which the bellows tube 23 is connected and a connection port to which a washing hose for washing the tank is connected are provided on the back side (rear side) of the outer tank cover 9a.

A sprinkler device 25 is fixed to the lower surface of the outer tub cover 9a via a plurality of screws. The sprinkler device 25 is formed in a substantially annular shape, and is arranged so as to circulate along the peripheral edge of the outer tub cover 9a.

Next, water-cooling dehumidification of hot air in the drying duct 12 will be described in detail.

FIG. 2 is a diagram showing the construction of a hot-air water-cooling dehumidifying mechanism comprising a drying duct 12, a cooling nozzle 14, and a heat exchange plate 26. As shown in FIG.

In the drying duct 12 , hot air from the outer tub 9 is sucked from the lower part, flows upward through the duct, and is sucked by the fan 20 through the suction bellows 28 . In other words, the drying duct 12 serves as a hot air passage.

A part of the wall of the drying duct 12 is composed of a heat exchange plate 26 made of a metal material such as stainless steel (SUS), which has a higher thermal conductivity than synthetic resin. Tap water (cooling water) is supplied from the cooling nozzles 14 to the surface opposite to the flowing surface (the right side of the heat exchange plate 26 in FIG. 2) so as to wet the surface of the heat exchange plate 26 .

The water vapor contained in the hot air exchanges heat with the heat exchange plate 26 cooled by tap water, condenses, and condenses on the surface of the heat exchange plate 26 through which the hot air flows. This condensed water flows down the heat exchange plate 26 .

At this time, the surface of the heat exchange plate 26 through which the hot air flows is desirably a smooth surface without irregularities in order to prevent the dew condensation water from being blown up by the hot air flowing upward.

On the other hand, the surface of the heat exchange plate 26 to which tap water is supplied is provided with ribs and unevenness for retaining cooling water. As a result, the cooling performance of the heat exchange plate 26 is improved, so that the hot air dehumidification performance can be improved.

As described above, in the drying duct 12 of the embodiment, the circulating hot air and the cooling water are separated by the heat exchange plate 26, so that it is possible to prevent the cooling water from being stirred up by the hot air flowing upward.

In addition, by making the surface of the heat exchange plate 26 through which the hot air flows smooth, it is difficult for lint contained in the hot air to adhere to the heat exchange plate, which improves the cleaning performance and improves the airflow path. Since there are fewer factors that cause resistance, it also leads to a reduction in windage.

In the above description, the heat exchange plate 26 is made of stainless steel (SUS) in consideration of heat exchange efficiency. However, a resin member may be used as a substitute if heat exchange is sufficiently possible with resin. Even in that case, as in the case of stainless steel (SUS), it is possible to provide a rib for cooling water retention on the water channel side for the purpose of improving heat exchange efficiency, while maintaining an air channel structure with little unevenness on the air channel side. It does not conflict with the content of windage reduction.

FIG. 2 shows a configuration in which a portion of the wall of the drying duct 12 provided in the vertical direction is used as the heat exchange plate 26. A heat exchange plate 26 may be provided in the area where the water flows down to form a heat exchange area.

Furthermore, in the above description, the structure in which the heat exchange plate 26 is provided on a part of the wall of the drying duct 12 has been described. The inside of the drying duct 12 is physically separated from the water channel through which the cooling water flows, and the heat exchange plate 26 is used as a wall, and the heat exchange plate 26 is cooled by the cooling water on the water channel side of the wall, and the warm air on the wall is The hot air on the side may be cooled by the heat exchange plate 26, the water vapor of the hot air may be condensed on the heat exchange plate 26, and the hot air may be water-cooled and dehumidified. Condensed water of hot air and cooling water are discharged from the lower part of the drying duct 12 .

Next, the structure of the drain path for the tap water (cooling water) supplied to the drying duct 12 and the hot air condensed water will be described with reference to FIGS. 3 and 4. FIG. 3 and 4 are enlarged views of a portion surrounded by a dashed line in FIG. 2. FIG.

FIG. 3 is a diagram showing a configuration in which the drying duct 12 drains the cooling water and the condensed water of the hot air through the hot air blowing port. In addition, in FIG. 3, the illustration of the hot air condensed water is omitted.

The heat exchange plate 26 is provided so as to abut against the bottom of the drying duct 12, and the flow openings provided at the corners of both ends of the heat exchange plate 26 or the tip of the heat exchange plate 26 abutting against the bottom of the drying duct 12 is provided. Cooling water that has wetted down the back surface of the heat exchange plate 26 (the surface opposite to the surface through which the hot air flows in the heat exchange plate 26) flows out from the airflow opening. The condensed water flows down to the bottom of the drying duct 12 along the surface of the heat exchange plate 26 through which the hot air flows.

The cooling water and the condensed water pass through the connecting portion 29 between the air blowing port provided below the outer tub 9 and the air blowing inlet of the drying duct 12, and flow out to the drop portion 15 provided on the bottom surface of the outer tub 9. do.

The cooling water and condensed water flowing out to the recessed portion 15 are connected to the lower communicating pipe 16 connected to the depressed portion 15, the drain valve 17 connected to the lower communicating pipe 16, and the drain valve 17 in the same manner as the washing water and the rinse water. The washing water is drained out of the machine through the washing water drain path 18 .

In the configuration of the cooling water and condensed water drainage path shown in FIG. are facing each other, there is a risk of moisture rolling up. Therefore, as shown in FIG. 4, it is desirable to configure a drainage path that separates hot air from cooling water and condensed water.

FIG. 4 is a diagram showing a drainage structure in which a drainage path 27 connecting the bottom of the drying duct 12 and the lower communicating pipe 16 upstream of the drainage valve 17 is added to the configuration of the drainage path of FIG. Since the configuration other than the drainage path 27 is the same as that of FIG. 3, the description is omitted. Also, illustration of condensed water of warm air is omitted.

Since the cooling water is drained without flowing through the connecting portion 29 between the air blowing port provided below the outer tub 9 and the air blowing inlet of the drying duct 12, the hot air, cooling water and Condensed water does not face. The configuration of the drainage channel in FIG. 4 can separate the hot air from the cooling water and the condensed water, thereby reducing the risk of swell.

FIG. 5 also shows that when hot air flows into the drying duct 12 from the air blowing port provided below the outer tank 9 through the connecting part 29, it flows through the drying duct 12 with less windage loss. Also, in order to prevent the wind from flowing to the water channel side where the cooling water falls, the windshield ribs 30, which are convex portions, are provided. FIG. 5A is a diagram showing a configuration in which a windshield rib 30 is provided on an air path through which hot air flows, and FIG. 5B is a perspective view of the windshield rib 30 as seen from the washing and dehydrating tub 8 side.

The surface of the protruded windshield rib 30 which promotes the upward flow of hot air hits the hot air blown from the outer tank 9 is a smoothly curved surface, and the hot air is made to flow upwards of the drying duct 112. - 特許庁It is. In addition, by setting the position of the top end of the windshield rib 30 higher than the position of the end of the heat exchange plate 26, warm air is prevented from entering the water channel side (back side of the heat exchange plate 26) through which the cooling water flows. I have to.

Also, as shown in FIG. 5B, the windshield ribs 30 are provided at two locations, through which the cooling water flows and is drained outside the machine via the recessed portion 15, the drain valve 17, and the washing water drain path 18. be. Although two windshield ribs 30 are provided in this embodiment, if there is a water channel through which cooling water flows, these may be combined into one and provided at one location.

Also, as shown in FIG. 6, an inclined portion 31 may be provided at the tip of the wall portion provided with the heat exchange plate 26 on the bottom side of the drying duct 12 . The inclined portion 31 is inclined toward the side where the cooling water and the condensed water flow so that the cooling water and the condensed water flow along the wall side. By doing so, it is possible to further prevent cooling water and condensed water from being swirled up by the hot air blown from the outer tub 9 . A part of the inclined portion 31 may be in contact with or asymptotically approaching the bottom surface or the wall surface of the outer tank 9 .

Although the vertical type washing/drying machine has been described above, the drying duct of the drum type washing/drying machine can be configured in the same manner.

1 to 6, the drying process for moisture-containing clothes after washing and dehydration has been described above. Description will be made with reference to FIG.

FIG. 7 simply describes only the structure of the part related to the present invention in the structure of the washing/drying machine 1 shown in FIG. 1 and the like. Since the description of the structure is duplicated, it is omitted, and the processing method is mainly described.

FIG. 8 is a diagram showing a processing procedure for reducing wrinkles in dried clothes. The processing here includes a first heating step S1, a second heating step S2, and a wrinkle smoothing step S3. It will be implemented step by step. FIG. 9 is a diagram showing the processing status of various operation terminals in each process. Processing contents in each step will be described with reference to FIGS. 8 and 9. FIG.

9, in the first heating step S1, which is the first processing step for reducing wrinkles in the dry clothes 32, the heater 21 in FIG. 7 is activated to warm the air. Cooling water is supplied to the outer tank 9 side of the heat exchange plate 26 by the water supply unit 7 while the fan 20 of the air blowing section is being rotated. At this time, the drain valve 17 is open, and the cooling water that has reached the bottom is drained as it is.

FIG. 10 is a diagram showing paths of hot air 33 and cooling water 34a in the first heating step S1. The air heated by the heater 21 is introduced into the washing and dehydrating tub 8 as warm air 33 by the fan 20 of the air blowing section through the bellows tube 23 and the blowout nozzle 24, and after warming the clothes 32, the air is blown from the lower part of the washing and dehydrating tub 8. It circulates through the drying duct 12 provided between the exterior 9 and the fan 20 of the air blowing section again. On the other hand, the cooling water 34a flows from the water supply unit 7 through the cooling nozzle 14 along the outer tub 9 side of the heat exchange plate 26 forming the drying duct 12, and is discharged from the bottom of the outer tub 9. FIG. The first heating step S1 for passing water is performed for about 30 to 60 seconds.

Subsequently, in the second heating step S2 in FIG. 8, as shown in the processing state of the operation terminal in FIG. 9, the air is warmed by the heater 21 in FIG. Stop the flow of cooling water from the unit 7. In this case, cooling water droplets that have stopped remain on the outer tank 9 side of the heat exchange plate 26 that forms the drying duct 12 . Preferably, in a more positive sense, the outer tank 9 of the heat exchange plate 26 should be made of a material or structure that allows droplets of cooling water to easily remain.

FIG. 11 is a diagram showing the relationship between the warm air 33 and the cooling water droplets 34b in the second heating step S2. In this case, the hot air is rising inside the drying duct 12, and droplets 34b adhere and remain on the outside of the heat exchange plate 26 forming the drying duct 12 on the other hand. At this time, the remaining cooling water droplets 34b are heated by the warm air 33 and evaporate, giving moisture to the warm air. In other words, the cooling water droplets 34b do not function as dehumidifying water in this scene, but as humidifying water. The second heating step S2 for exchanging heat with the droplet 34b is preferably performed for about 120 seconds to 600 seconds, which is longer than the first heating step S1.

Finally, in the wrinkle smoothing step S3 in FIG. 8, the heater 21 is stopped and the fan 20 of the air blowing section is rotated at high speed, as shown in the processing state of the operating end in FIG. Cooling water is continuously supplied to the outer tank 9 side of 26 .

In this case, the moisture-containing clothing 32 is exposed to the blower wind generated by the high-speed rotation of the fan 20 of the air blowing section, and the moisture-containing blower wind and the cooling water 32a that is continuously flowing are heat exchanged. Moisture is dehumidified from the blower air as a result of heat exchange by moving upward and downward on the inside and outside of the plate 26, respectively, and the dehumidified moisture adheres to the inside of the heat exchange plate 26, liquefies and drops. It will drip and drain from the bottom. Thus, in this case, the cooling water functions as dehumidified water.

As described above, in the present invention, tap water (cooling water) is flowed into the outer tank for a certain period of time while heating the inside of the tank by flowing hot air (first heating step). The cooling water flows from the external faucet through the water supply hose to the water supply unit through the water supply hose connection port. The water supply unit directs cooling water through cooling nozzles to the heat exchange plates in the drying ducts (clothes are not directly wetted). After the first heating process, the cooling water is stopped, and the cooling water is heated by hot air while remaining inside the tank (at the bottom of the outer tank, etc.) to evaporate the cooling water. (second heating step). After that, a wrinkle smoothing process is carried out.

ADVANTAGE OF THE INVENTION According to this invention, it can humidify clothes by making it high humidity in a short time, and can smooth out wrinkles of clothes, without making unevenness. In addition, the moisture that humidifies the clothes absorbs the odor inside the clothes, and by drying (evaporating) it, a deodorizing effect can be obtained.

In addition, according to the embodiment of the present invention, it is possible to obtain the effect of reducing wrinkles in folded clothes, wrinkles in sitting position, and wrinkles remaining in clothes dried after washing within 30 minutes. tidying up) can be omitted.

FIG. 12 is a diagram showing a processing procedure according to Example 2 for reducing wrinkles in dry clothes.

In the processing procedure of the second embodiment, the repeated processing S4 is provided, and the combination of the first heating step S1 and the second heating step S2 is repeatedly performed a predetermined number of times, and then the wrinkle smoothing step S3 is performed. is. The number of times of repetition processing can be set appropriately, so that the humidification state can be set appropriately according to the material of the clothes, for example.

6: Water supply hose connection port 7: Water supply unit 8: Washing and dewatering tank 12: Drying duct 14: Cooling nozzle 17: Drain valve 20: Fan (blower)
21: heater 23: bellows tube 24: blowing nozzle 26: heat exchange plate 32: clothing

Claims (5)

An inner tank is provided within an outer tank, air is circulated from the inner tank through a drying duct formed between the inner tank and the outer tank, and cooling water is passed through the outer tank side of the drying duct. A washing machine that can
a first heating step of sending hot air into the inner tank and passing water through the outer tank side of the drying duct; and after performing the first heating step, sending hot air into the inner tank and the outer tank side of the drying duct. A washing machine characterized by executing a second heating step of stopping the flow of water to the washing machine. The washing machine according to claim 1,
A washing machine according to claim 1, wherein, after performing the second heating step, a wrinkle-smoothing step is performed in which strong cool air is sent into the inner tub and water is passed to the outer tub side of the drying duct. The washing machine according to claim 1 or claim 2,
A washing machine, wherein the execution time of the second heating process is set longer than the execution time of the first heating process. The washing machine according to any one of claims 1 to 3,
A washing machine according to claim 1, wherein said drying duct is formed by a heat exchange plate, and said heat exchange plate is made of a material or structure in which droplets of cooling water tend to remain after said first heating process is performed. The washing machine according to claim 2,
A washing machine, wherein the wrinkle smoothing step is performed after the first heating step and the second heating step are repeatedly performed a plurality of times.

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