JP2009061054A - Drum type washer / dryer - Google Patents

Abstract

An object of the present invention is to prevent water from adhering unevenly to clothes due to drying after mist treatment.
SOLUTION: The air in a water tank 3 is exhausted at a constant speed rotation of a blower fan 12 and heated after dehumidification. A circulation air passage 9 for drying the laundry in the rotary drum 4 having the bottom wall through hole 4f, and a mist 20 supplied from the mist supply portion 30 to the air blowing side of the circulation air passage 9 using the mist supply portion 30. Is provided with a mist treatment / drying mode for drying the laundry with heated air after the mist treatment for moistening the laundry in the rotary drum 4, and in the drying after the mist treatment, the rotational speed of the blower fan 12 is lower than the normal speed rotation The above object is achieved by increasing the rotation speed from a low speed to a steady speed in one or more stages.
[Selection] Figure 2

Description

  The present invention relates to a drum type laundry dryer having a mist treatment / drying mode in which the laundry is dried by heated air after the mist treatment in which the laundry in a rotating drum is moistened by mist.

  Conventionally, in the drying process, the rotating drum containing the laundry such as clothes is rotated at a high speed, and the laundry is dried while sticking to the inner wall of the rotating drum. It is inevitable that wrinkles enter clothing, and it is necessary to add trouble to stretch the wrinkles when hanging such clothes on a hanger, etc. there were.

  Therefore, recently equipped with an atomizing unit that generates mist consisting of fine droplets, introducing mist into a rotating drum containing clothing, etc., and washing and drying to reduce static electricity and wrinkles that entered clothing etc. in the drying process 2. Description of the Related Art Clothing dryers that dry and deodorize clothing and the like by introducing mist into a dryer or a drying chamber that houses clothing have been developed (see, for example, Patent Documents 1 and 2).

The washing / drying machine disclosed in Patent Document 1 is an outer tub, an inner tub that is rotatably arranged in the outer tub and accommodates laundry, and after the air in the outer tub is exhausted and dehumidified by a blower fan. Repeated heating and blowing into the outer tub, drying the clothes in the inner tub, provided in the vicinity of the hot air supply port to the inner tub through the heating means of this hot air circulation path, drying In the process, the mist is sprayed into the warm air circulation path. And it is said that the static electricity which generate | occur | produces when clothes are stirred at a drying process can be removed, the discomfort to the human body by static electricity can be eliminated, and the wrinkles of the clothes after drying can be reduced. Further, the hot air supply port is located at the rear of the upper surface of the outer tub that is not opened and closed, and dry air and mist are directly introduced into the inner tub from the upper end opening thereof.
JP 2003-311067 A JP 2006-158585 A

  By the way, the atomized mist has different characteristics such as floatability and surface tension (wetting property) depending on the particle size. That is, an ultrafine mist having a particle size of less than 10 μm is also called a dry mist and is extremely fine, and thus has a high surface tension and high floating property, but has low wettability when attached to an object. ing. Fine mist having a particle size of 10 to 50 μm is also called wet mist, and has a relatively large particle size compared to the dry mist described above, and thus has a low surface tension and high wettability when attached to an object. have. A relatively coarse mist having a particle size of more than 50 μm has properties close to water droplets.

  Among these, wet mist with excellent wettability can reduce wrinkles such as clothes in the drying process while adhering to clothes that are laundry and moistening the laundry efficiently. Filling the rotating drum tank with mist containing a large amount of wet mist is important in obtaining the effect of reducing wrinkles such as clothing. Also, when the mist generated in the atomization unit is introduced to the place where the clothing is placed, it should not be collided with the pipe wall of the introduction pipe line as much as possible, that is, condensed and lost to the pipe wall etc. It is important to efficiently send many mists to the place where the clothes are placed.

  The washing dryers and clothes dryers disclosed in the above Patent Documents 1 and 2 lack such a viewpoint, and therefore, wrinkles such as clothing are always reduced efficiently, and drying and deodorization are performed. I couldn't.

  Moreover, in the washing / drying machine disclosed in Patent Document 1, a part of the mist sprayed from the spraying device reaches the clothes in the inner tub as it is, but most of the other collides with the inner wall surface of the hot air circulation path. Most of the water is condensed on the inner wall surface and lost as water droplets before reaching the inner tank. In this washing / drying machine, negative ions are generated due to the crushing effect when the mist collides with the inner wall surface, and the static neutralization effect can be enhanced. However, most of the mist sprayed from the spray device is in the middle. It disappeared and did not reach the clothes in the inner tub, and there was a problem that it was difficult to wet the clothes and effectively reduce wrinkles.

  Moreover, in the clothes dryer disclosed in Patent Document 2, an electrolytic mist generator is disposed in a machine room provided below the bottom plate of the drying chamber, and the generated electrolytic mist is supplied to the downstream side of the heater, After heating the electrolytic mist to a high temperature by mixing with hot air, it is discharged upward from the duct chamber and blown out through the blowout part formed by the bottom plate of the drying chamber in which multiple slits and holes are formed and supplied to the drying chamber is doing. In such a configuration, although a plurality of slits and holes are formed in the blowout part, most of the mist collides with the lower surface of the bottom plate where no slits or holes are formed and condenses to form water droplets. Will be lost. Therefore, in such a clothes dryer, most of the mist generated from the electrolytic mist generator disappears in the middle and does not reach the clothes in the drying chamber, so that the clothes are moistened and wrinkles are reduced. There was a problem that I could not. In addition, since hot air is supplied to the duct chamber that has been formed with water droplets in this way, humid hot air is also introduced into the drying chamber, and even if some deodorizing effect can be expected, clothes are sufficiently dried. I couldn't.

  In addition, when the mist generating means is an ultrasonic atomization method, the amount of mist generated per hour varies depending on the water temperature, the input voltage to the oscillation circuit, and the like.

  For example, when an ultrasonic transducer that oscillates at 1.6 MHz is used, if other conditions are fixed and only the water temperature is changed from 5 ° C. to 30 ° C., the amount of mist generated is about 1.5 times. Further, if only the voltage input to the oscillation circuit is changed from 95V to 107V, the amount of mist generated is also about 1.5 times here.

  Normally, the water temperature change and the voltage change described above are changes that normally occur at home. Therefore, when the mist generation amount is the minimum condition, the mist generation amount is adjusted by adjusting the drying rate of the clothes from 90% to 96%. However, since the amount of mist generated becomes excessive under the maximum conditions, the clothes are wetted to a dry rate of nearly 70%, so the meaning of using the mist adopted as a moistening means is lost.

  Conversely, when the amount of mist generated is adjusted so that the drying rate of the garment is 90% to 96% under the maximum condition, there is a problem that under the minimum condition, the garment is almost not wet and the drying rate is only near 99%.

  In addition, stains may occur on moistened or dried clothing. Furthermore, the drum-type washing in which the atomization means is an ultrasonic atomization method, the water surface is exposed in the circulation air passage and is located near the hot air supply port, and the generated mist flows into the water tank through the hot air supply port. In the dryer, in particular, the stain generation rate may be higher than that of the former. As a result of uniformly moistening the garment mainly with the mist through the bottom wall through-hole of the bottom wall in this way, water trapped mainly in the bottom wall through-hole after clogging may be clogged. Strong air blown from the hot air supply port causes the water droplets to be blown into the rotating drum and adhere unevenly to clothing. Especially, at the beginning of the air blow, the water in the bottom wall through hole in the range corresponding to the hot air supply port Was blown away all at once, causing large stains called ring stains. In the latter case, the stain occurrence rate is higher than that in the former case, which corresponds to the case where the atomization means starts drying in a state close to full water, and this also causes strong air flow to contact the water surface of the water reservoir. It was due to carrying water and increasing the amount of water that adhered unevenly to clothing.

  An object of the present invention is to provide a drum-type washing / drying machine that can prevent water from adhering unevenly to clothes due to drying after mist treatment.

  In order to achieve the above-described object, the drum type washing and drying machine of the present invention exhausts the air in the water tank by dehumidifying the air by rotating at a constant speed of the blower fan, and then heats the air in the water tank. Repeatedly blowing air from part, circulating air passage that dries the laundry in the rotating drum that is accommodated in the water tank and has a number of through holes on the peripheral wall and bottom wall, and mist on the air blowing side of this circulating air passage A mist treatment / drying mode for drying the laundry with heated air after the mist treatment in which the laundry in the rotating drum is moistened with the mist supplied from the mist supply unit. In the subsequent drying, one feature is that the rotational speed of the blower fan is increased from a low speed lower than the steady speed to a steady speed in one or more stages.

  In such a configuration, when the drying is started after the mist processing using the circulation air flow path, the air blowing fan is rotated at a lower speed than the normal speed rotation for drying, so the air volume and the air speed of the heated air blown into the water tank Therefore, even if the bottom wall through-hole of the rotating drum is clogged with water, the force to blow off the water is weakened and introduced into the rotating drum through the through-hole that is not clogged with water. In this way, the water clogged in the through holes is blown off to prevent the water from adhering to the laundry such as clothes. In addition, although the air volume and the wind speed are reduced by low-speed rotation, the heated air introduced from the water tank into the rotating drum allows the laundry to dry and raises the water clogged in the bottom wall through-hole of the rotating drum. Since it can be warmed and reduced in volume by evaporation to improve air permeability, the drying time is prolonged at low speed rotation by shifting to steady speed rotation directly or through one or more medium speed rotations in a timely manner. Can be kept to a minimum without problems caused by blowing off water.

  In the above, the initial low-speed rotation at the time of drying of the blower fan may be equivalent to the steady-speed rotation at the time of mist processing of the blower fan.

  In such a configuration, in addition to the above-described case, the blast fan is rotated at a low speed so that the mist does not collide with each part and is trapped even during the mist processing, so that the mist flows around the laundry. If the low-speed rotation is continued and the drying is started and the speed is increased to the point of the high-speed operation, the above-described operation can be realized.

  In the above, after the mist process is completed, the steady-state rotation at the time of the mist process that is lower than the low-speed rotation at the time of drying is maintained until the drying is started.

  In the above, the steady speed rotation at the time of mist processing is about 500 rpm, the low speed rotation at the time of drying is 3700-4500 rpm, and the steady speed rotation at the time of drying is about 5800 rpm.

  In this case, the low-speed rotation at the time of drying is performed until 5 to 8 minutes have elapsed from the start of drying, so that water clogged in the bottom wall through holes can be reliably dried.

  The drum-type washing / drying machine of the present invention is also heated after exhausting the air in the water tank by dehumidifying it with a blower fan, and repeatedly blowing air from the rear wall of the water tank into the water tank. The circulating air passage for drying the laundry in the rotating drum having a large number of through holes, and the water surface of the water reservoir on the air blowing side of the circulation air passage is exposed in the circulation air passage and atomizes to supply mist. And a mist processing / drying mode in which the laundry is dried with heated air after the mist processing in which the laundry in the rotating drum is moistened by the mist supplied by atomization and supplied by the mist supply unit. In the drying after the mist treatment, the rotational speed of the blower fan is set until the water level of the water reservoir in the mist supply unit drops from the full water level to at least a predetermined water level or at a predetermined time corresponding thereto. There is a low-speed rotation than the steady speed rotation until passage, which switching to subsequent steady speed rotation and other features.

  In such a configuration, a mist process using a circulation air supply path and a mist supply unit that supplies the mist by atomizing the water surface of the water storage portion exposed to the air supply side of the circulation air supply path in the circulation air supply path. When drying is started later, the blower fan is rotated at a lower speed than the normal speed rotation until the water level of the water storage section in the mist supply section drops from the full water level to at least a predetermined water level or until a predetermined time corresponding thereto elapses. As a result, the air volume and the speed of the heated air flowing in contact with the water surface of the water reservoir of the mist supply unit are reduced as compared with the normal speed rotation, so that the heated air does not lower the water level of the water reservoir from the full level. Even if it does not carry water, it prevents the heated air from carrying water and adhering to laundry such as clothes. In addition, although the air volume and wind speed are reduced by low-speed rotation, the heated air introduced from the water tank to the rotating drum can advance the drying of the laundry, and the water in the water storage part will drop to the predetermined level even if it is full. Therefore, it is possible to suppress a prolonged drying time at a low speed rotation without problems caused by carrying water.

  In the above, the low-speed rotation at the time of drying can be further performed until the water level of the water storage part is reduced from the full water level to about 1/5 to 1/4.

  In such a configuration, in addition to the above-described case, it is possible to prevent the drying function from being extended due to the low-speed rotation while reliably preventing the water in the water reservoir from being blown away.

  In the above, the mist supply unit may be further located in the vicinity of a hot air supply port to a water tank provided in an upper part of a rear wall of the water tank in the circulation air flow path.

  In such a configuration, the mist supply unit is located in the vicinity of the hot air supply port in the upper part of the back wall of the water tank, so that the hot air is mainly formed of wet mist having a particle size of 10 to 50 μm and excellent wettability. Even if the water temperature and the input voltage of the oscillation circuit are changed by dropping into the water tank through the supply port and introducing into the rotating drum through the bottom wall through hole, the drying rate is effectively 90% to 96%. %, It is possible to prevent water from adhering unevenly to clothing and the like while realizing an excellent wrinkle reduction effect.

  According to one aspect of the present invention, in a mist process using a circulating air passage, a wet mist having a particle size excellent in wettability is mainly introduced into the rotating drum to be filled, and the garment surface is effectively filled. The mist process clogs the bottom wall through-holes of the rotating drum with water so that it can be moistened and dried to effectively reduce wrinkles that have entered clothing and deodorize it. However, drying starts the air blower fan at a lower speed than the steady speed rotation and starts to reduce the air volume and speed, so that the clogged water can be blown away to prevent the clothes from adhering unevenly to the clothes. In addition, by speeding up the steady rotation at an appropriate time, it is possible to prevent the drying time from being prolonged at low speed rotation without problems caused by blowing off water.

  According to another feature of the present invention, the particle size having excellent wettability in the mist treatment using the mist supply part in which the water surface of the water storage part is exposed in the vicinity of the hot air supply port to the water tank in the circulation air passage. Introduces and fills the rotating drum with wet mist as the main component, effectively moistens the clothing surface, shifts to drying, effectively reduces wrinkles in the clothing, and can deodorize Therefore, even if the mist processing is completed without the water level of the water storage part being lowered from the full water level to the predetermined level, the drying is performed during the time corresponding to whether the water in the water storage part falls from the full water level to the predetermined water level. Since the fan is started at a lower speed than the steady speed, and the air volume and speed are reduced, it is possible to prevent the heated air from carrying the water in the water reservoir and unevenly adhering to clothing. And speed up to steady rotation in a timely manner Therefore, suppressing the drying time at low speed rotation is unnecessarily protracted without problems by carrying the water.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best mode for carrying out the drum type washing and drying machine of the present invention will be described with reference to the drawings. It should be understood that the embodiments disclosed below are illustrative in all respects and are not restrictive. The technical scope of the present invention is shown not by the content disclosed in the embodiment but by the description of the scope of claims, and further includes all modifications within the meaning and scope equivalent to the scope of claims. Should be understood.

  First, the structure and operation of a drum-type washing and drying machine provided with an atomizing unit according to an embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a side cross-sectional view for explaining the structure of a drum-type washing / drying machine according to an embodiment of the present invention, and FIG. 2 shows the arrangement of circulation air flow paths and atomization units of the drum-type washing / drying machine. It is the perspective view seen from the housing | casing back side for demonstrating. FIG. 3 is a cross-sectional view showing a part of the circulating air flow path and the atomizing unit of the drum type washer / dryer as viewed from the rear side of the casing, for explaining the structure. FIG. It is side surface sectional drawing for demonstrating the connection structure of the atomization unit and water tank of a washing-drying machine.

  First, in the drum-type washing / drying machine 1 according to the embodiment of the present invention, a water tank 3 is arranged in a floating state in a washing / drying machine casing 2 by a suspension structure (not shown), and the bottom of the water tank 3 has a bottomed cylindrical shape. The formed rotating drum 4 is disposed with its axial center inclined downward from the front side to the back side. A clothing doorway leading to the opening end of the rotating drum 4 is formed on the front side of the water tank 3, and a door 5 that closes the opening provided on the upward inclined surface formed on the front side of the washing and drying machine housing 2 so as to be openable and closable. The laundry can be taken in and out of the rotary drum 4 through the clothing doorway. Since the door 5 is provided on the upwardly inclined surface, the work for putting in and out the laundry can be performed without bending the waist, and the workability of the drum-type washing machine for taking in and out the laundry from the side opening is generally horizontal. The badness of has been improved.

  As shown in FIGS. 1 and 4, the rotating drum 4 is provided with a plurality of peripheral wall through holes 4c and bottom wall through holes 4f communicating with the water tank 3 on the peripheral wall 4a and the bottom wall 4b. In FIG. 7, bottom surface inlets 4d are formed at a plurality of positions along the circumferential direction facing the hot air supply port 18 formed in the upper part of the rear wall of the water tank 3, As shown in FIG. 8, a plurality of radial ribs 4g are formed, and two circumferential ribs 4h are formed concentrically in the circumferential direction so as to intersect the radial ribs 4g.

  In addition, stirring protrusions 4e are provided at a plurality of positions on the inner surface of the peripheral wall 4a. The rotating drum 4 is rotationally driven in the forward and reverse directions by a motor 6 attached to the back side of the water tank 3. Further, a water supply pipe 7 and a drain pipe 8 are connected to the water tank 3, and water is supplied into the water tank 3 and drained from the water tank 3 by control of a water supply valve and a drain valve (not shown).

  When the door 5 is opened and laundry and detergent (the detergent may be automatically added in the initial stage of water injection) are introduced into the rotating drum 4 from the opening, and the operation of the drum type laundry dryer 1 is started. A predetermined amount of water is poured into the water tank 3 from the water supply pipe 7, and the rotary drum 4 is driven to rotate by the motor 6 to start the washing process. By the rotation of the rotating drum 4, the laundry accommodated in the rotating drum 4 is lifted in the rotating direction by the stirring protrusion 4e provided on the inner peripheral wall of the rotating drum 4, and the stirring that falls from the lifted appropriate height position. Since the operation is repeated, the laundry has the effect of tapping and washing.

  After the required washing time has elapsed, the dirty washing liquid is discharged from the drain pipe 8, and the washing liquid contained in the laundry is dehydrated by a dehydrating operation that rotates the rotating drum 4 at a high speed. Then, water is supplied from the water supply pipe 7 to perform the rinsing / dehydration process. Also in the rinsing / dehydrating step, the laundry accommodated in the rotating drum 4 is repeatedly agitated by being lifted and dropped by the agitating protrusion 4e by the rotation of the rotating drum 4, and rinsed. Then, after rinsing, the water contained in the laundry is dehydrated again by the dehydration operation of rotating the rotating drum 4 at a high speed, and the rinsing / dehydration step is completed.

  The drum-type washing / drying machine 1 has a function of drying laundry stored in the rotating drum 4. The air in the water tank 3 is exhausted to dehumidify, and the heated dry air is blown into the water tank 3 again. A circulating air passage 9 is provided. In the middle of the circulation air passage 9, dehumidifying means such as the evaporator 10, heating means such as the condenser 11, and air blowing means such as the air blowing fan 12 are provided at a lower position in the washing and drying machine housing 2. Yes. The circulation air passage 9 is composed of a circulation air introduction line 13 between the water tank 3 for exhausting from the water tank and the blower fan 12, and a dry air blower line 14 between the blower fan 12 and the water tank 3. The atomizing unit 30 is connected to an upper position near the hot air supply port 18 formed on the back wall of the water tank 3 in the dry air blowing duct 14.

  The dry air blowing duct 14 is configured with a lower duct 15, a flexible duct 16, and an upper duct 17 in order from the upstream side in the space behind the washing / drying machine casing 2 (the back side of the water tank 3). A communication port 17 a is opened below the downstream end of the upper pipe line 17, and the communication port 17 a is connected to a hot air supply port 18 provided on the back surface of the water tank 3. The upper pipe line 17 is inclined to rise toward the center of the housing 2 at the lower part thereof, bent about 90 ° in the middle, and directed toward the hot air supply port 18 of the water tank 3 at the upper part thereof. Inclined downward. The flexible duct 16 is configured by using a flexible pipe material, and prevents the vibration of the lower pipe line 15 accompanying the rotation of the rotary drum 4 or the start / stop from being transmitted to the blower fan 12 side. . The dry air dehumidified by the evaporator 10 and heated by the condenser 11 is sent from the hot air supply port 18 to the water tank 3 and the rotary drum 4 located in the interior thereof via the dry air blowing pipe 14. It is.

  By rotating and driving the blower fan 12 at high speed, an air flow is generated in the circulation blower passage 9, and the humid air in the rotary drum 4 containing the laundry passes through the through holes 4c provided in the peripheral wall 4a. The air is exhausted from the water tank 3 to the circulating air introduction pipe 13 to the blower fan 12 side, dehumidified by dew condensation by the evaporator 10 located upstream of the blower fan 12, and heated by heat exchange with the condenser 11. As a result, high-temperature dry air is obtained.

  The heated dry air is sent from the blower fan 12 to the dry air blower duct 14 to the water tank 3 and is sent into the water tank 3 through the hot air supply port 18 provided in the water tank 3. The high-temperature dry air sent into the water tank 3 is introduced into the rotating drum 4 through a bottom opening 4d and a through hole 4c provided in the bottom wall 4b of the rotating drum 4, and flows between laundry such as clothes. While being dried, it becomes moist air, passes through the through holes 4c provided in the peripheral wall 4a to the water tank 3, and is again introduced into the circulating air introduction conduit 13. A drying process is implemented by the circulation of the air in such a circulation ventilation path 9 (circulation air introduction pipe line 13, dry air ventilation pipe line 14).

  Here, the drum-type washing / drying machine 1 according to the present embodiment has an “wrinkle” for the purpose of spreading and reducing wrinkles of dry clothing while rotating the atomizing unit 30 and the rotating drum 4 described later. "Nobashi Course" is provided. In this “wrinkle spreading course”, the evaporator 10 and the condenser 11 are stopped, the rotational speed of the rotary drum 4 and the blower fan 12 is rotated at a lower speed than in the normal drying process, and the atomization unit 30 is activated. As a result, the mist 20 made of fine droplets is generated in the atomizing unit 30 and the mist 20 is dropped into the dry air flow flowing through the dry air blowing duct 14. In a state where a lot of fine wet mist and dry mist are present, it is fed into the water tank 3 and introduced into the rotating drum 4. In this way, a process is performed in which the mist 20 is filled to every corner in the rotating drum 4 to effectively moisten the clothing surface and to reduce the wrinkles of the clothing in a dry state. Is done. Further, after that, the atomization unit 30 is stopped, the rotational speeds of the rotary drum 4 and the blower fan 12 are increased to the same speed as the normal drying process, and the evaporator 10 and the condenser 11 are operated, A drying operation can be performed to stretch the wrinkles of the clothing while drying the clothing. In the “wrinkle spreading course” described above, the rotating drum 4 does not necessarily have to be rotated.

  Further, in the above-described “wrinkle spreading course”, it is possible to reduce wrinkles with the mist 20 as described above, and further, a deodorizing effect can be expected by the following principle. Usually, the odor is attached to the clothing surface as a odor component as a molecule. For example, the smell of tobacco and yakiniku is the case, and when the mist 20 hits the odor molecule, the odor molecule is dissolved in the water molecule itself, and is detached from the clothing. Then, after such mist treatment, a drying operation is performed, and the water in which the odor component is dissolved is evaporated by high-temperature and low-humidity air, thereby preventing the odor molecule from reattaching to the clothing and deodorizing. It becomes possible.

  Here, the wrinkle spreading mechanism of cellulosic fibers such as cotton and hemp will be explained. The wrinkles formed in clothing are usually stable by hydrogen bonding between the fibers and restraining each other as shown in FIG. It has become. Therefore, when the clothing fibers are uniformly moistened, the hydrogen bonds between the fibers disappear as shown in FIG. 13B, and the fibers can move freely. In this state, the rotating drum 4 is rotated, lifted, dropped and struck repeatedly to stretch the fibers as shown in FIG. As shown in FIG. 13 (d), the fibers stretched by drying after wrinkling are fixed again in the stretched state by hydrogen bonding, and the garment is stabilized in the stretched state.

  Moreover, the deodorizing mechanism by a mist process is demonstrated. The odor is attached to the clothing by binding the odor molecule to the fiber as shown in FIG. Further, when the fiber is uniformly wetted with mist, the water molecules forming the mist particles without increasing the drying load in the case of being wetted with water, as shown in FIG. The bond of water is replaced with water molecules, and the bonds of odorous molecules are cut to make it easier to separate from the fiber. Therefore, when the air is blown, the odorous molecules that are easily separated from the fibers can be carried away from the clothing as shown in FIG.

  Therefore, in the drum-type washing / drying machine 1 of the present embodiment, wrinkles can be spread and deodorized by drying after the mist treatment. Moreover, the humid air carrying odorous molecules exhausted through the water tank 3 and the rotating drum 4 in the drying process is condensed by the evaporator 10 as condensed water, and this condensed water has been carried from the clothing. Since the odor molecules are captured and drained together with the dew condensation water, the odor molecules once separated from the clothing and carried by the circulating air do not circulate and adhere to the clothing.

  Next, the configuration of the atomizing unit 30 and the “wrinkle spreading course” according to the present invention will be described in detail with reference to FIGS. 5 and 6 and the above-mentioned drawings. FIG. 5 is a side sectional view for explaining the structure of the atomizing unit of the drum type washing / drying machine 1 according to the embodiment of the present invention, and FIG. 6 is a rear sectional view thereof.

  The atomization unit 30 is disposed at an upper position close to the hot air supply port 18, and includes a water storage container 31 that stores water 21 as a mist generation source, and water 21 stored in the water storage container 31. On the other hand, an ultrasonic transducer 32 for applying ultrasonic vibration, a water injection device 33 for injecting water 21 into the water storage container 31, and a water temperature sensor 35 for measuring the water temperature in the water storage container 31 are provided. Yes. And the water storage container 31 of the atomization unit 30 is arrange | positioned in the upper position adjacent to the warm air supply port 18 in the back surface of the water tank 3, and it dries directly via the connection port 31e located above the warm air supply port 18. It is connected to the upper duct 17 of the air blowing duct 14 (circulation ventilation path 9).

  The water storage container 31 is fixed adjacent to the outer rear surface of the water tank 3, and the front side wall 31 b facing the water tank 3 of the water storage container 31 is inclined with respect to the vertical direction along the rear surface of the water tank 3. The rear side wall 31b is formed in the vertical direction along the back panel of the washer-dryer casing 2, and the bottom wall 31a side of the water reservoir 31 is formed wide.

  The water storage container 31 stores water 21 as a mist generation source, and a water injection port 31c for injecting the water 21 from the water injection device 33 is provided at the upper portion thereof, on the side facing the upper pipe line 17. An opening weir 31d is provided in the side wall 31b, and thereby, a connection port 31e connected to the upper pipe line 17 is provided in an upper portion of the hot air supply port 18. By allowing the water 21 injected into the water storage container 31 from the water injection port 31c to overflow from the opening weir 31d to the upper conduit 17 above the hot air supply port 18 through the connection port 31e, the water can be stored with a simple configuration. The water 21 in the container 31 is configured to be kept at a constant water level. The water 21 overflowing from the opening weir 31d is supplied to the water tank 3 through the connection port 31e, the upper pipe line 17 and the hot air supply port 18, and is discharged to the outside through the drain pipe line 8. The

  The ultrasonic transducer 32 is disposed with the vibration surface 32a of the piezoelectric element that generates ultrasonic vibrations in close contact with the bottom wall 31a of the water storage container 31, and by operating the piezoelectric element, the ultrasonic transmission direction 32b. The ultrasonic vibration is transmitted in the direction (perpendicular to the vibration surface 32 a), and the liquid column 22 is formed in the water 21 in the water storage container 31. As shown in FIG. 6, since the ultrasonic transducer 32 is attached so that the vibration surface 32a faces the opposite side of the connection port 31e, the liquid column 22 is opposite to the connection port 31e. It is formed toward the inner surface of the side wall 32b. As the liquid column 22 is formed, the water 21 in the water storage container 31 rises along the liquid column 22 and descends and rises along the inner surface of the side wall 31b as indicated by the arrows. Occurs. At the same time, the ultrasonic vibration transmitted through the liquid column 22 finely vibrates the surface of the water 21, thereby weakening the surface tension near the tip of the liquid column 22 and responding to the fine vibration of the liquid column 22. Mist 20 (mist) which is a fine droplet is generated, and this mist 20 is pushed out by the convection motion of the water 21 described above and discharged toward the ultrasonic wave transmitting direction 32b. It descends and rises along the inner surface of the side wall 31b according to the convection, and is then discharged along the surface of the stored water 21 and the inner surface of the side wall 31b through the connection port 31e to the upper pipe line 17 above the hot air supply port 18. . The mist 20 discharged to the upper pipe line 17 is sent to the water tank 3 from the hot air supply port 18 immediately below, and further, the rotating drum 4 is connected to the rotating drum 4 through the bottom opening 4d and the bottom wall through hole 4f. Introduced in.

Further, in the present embodiment, when the mist 20 is introduced into the rotating drum 4, the blower fan 12 is rotated at a rotational speed of about 500 rpm. At this time, the air flow rate in the circulating air flow path 9 is 0.15 m ³ / min, and during the rated operation in the normal drying process (the air blowing fan 12 is rotated at a constant speed of 5800 rpm, and the dry air air blowing line against 2.2 m ³ / min flow rate of the dry air is sent in) to 14, about 1/10 the rotational speed of the rotating fan corresponds to about 1/3 in the blast volume. By causing air to flow through the dry air blowing duct 14 with such a weak air volume, wind pressure that pushes the mist 20 into the rotating drum 4 from the hot air supply port 18 acts and appropriately introduces it into the rotating drum 4. In addition, wet mist and highly dry dry mist can be simultaneously introduced into the rotary drum 4 from the hot air supply port 18, the temperature of the clothing is close to room temperature, and the temperature of the mist 20 is When it is high, moisture is condensed on the surface of the clothes, and the clothes can be moistened more efficiently.

The blowing rate of air flow in the circulating air passage 9 to obtain such an effect, 0.05m ³ /min~1.00m ³ / min are suitable, this air volume is 0.05 m ³ / If it is less than min, when the wet mist is introduced into the rotating drum 4, the clothes in the rotating drum 4 become an obstacle and cannot sufficiently enter the rotating drum 4. It may flow down between the rotary drum 4 and the amount of dry mist introduced into the rotary drum 4 is reduced, so that the above effect cannot be obtained sufficiently. Further, when the air flow rate in the circulation air flow path 9 exceeds 1.00 m ³ / min, the wet mist collides with the tube wall of the dry air air flow line 14 (upper line 17) and the wet mist The existence ratio is reduced, and the dry mist passes through the rotary drum 4 without adhering to the clothing.

  Further, in the present embodiment, as shown in FIGS. 3 and 6, rectifying fins 36 (rectifying means) are provided in the vicinity of the upper portion of the connection port 31e connected to the dry air blowing conduit 14 of the water storage container 31. Yes. The rectifying fins 36 are configured by a plate-like member that horizontally crosses the dry air blowing duct 14 at a position that enters the dry air blowing duct 14 side from the connection port 31e. As described above, when the blower fan 12 is rotationally driven in the “wrinkle spreading course”, an air flow is generated in the dry air blower duct 14, but in the case where the rectifying fin 36 is not provided, However, by providing the rectifying fins 36, a part of the air flows through the rectifying fins 36 as shown by the broken arrows. It branches by passing through the upper part, is introduced into the atomization unit 30 from the upper part of the connection port 31e, and then circulates in the atomization unit 30 and again passes from the connection port 31e to the dry air blowing conduit 14. A return air flow will be formed. In such a state, the mist 20 generated in the atomization unit 30 rides on the air flow described above and flows into the dry air blowing duct 14, and further, due to its own weight and air flow, the hot air supply port 18. And is introduced into the water tank 3 and further into the rotating drum 4.

  Since the liquid column 22 is formed to be inclined toward the inner surface of the side wall opposite to the connection port as described above, the water 21 is spilled into the upper pipe line directly through the connection port by the liquid column 22. Therefore, it is possible to prevent an excessive decrease in the water 21 in the water storage container 31.

  The water injection device 33 is for replenishing the water 21 consumed by the generation of the mist 20 in the water storage container 31. The water supply port 33 a provided below the water injection device 33 and the water injection port 31 c of the water storage container 31 are provided. Are connected by a water injection hose 34, and an on-off valve (not shown) is provided at an appropriate position therebetween. In the first stage when the atomizing unit 30 is activated, the water injection device 33 opens the on-off valve and supplies water from the water supply port 33a of the water injection device 33 for a predetermined time sufficient for water to accumulate in the water storage container 31. While supplying the water 21 through the hose 34, the excess water 21 is overflowed from the opening weir 31d of the side wall 31b, and the water 21 in the water storage container 31 is kept at a constant water level. The water injection operation at the initial stage of the start-up is for replenishing the water 21 in the water storage container 31 that has decreased due to evaporation or the like during the pause and always operating the atomization unit 30 under a constant water level.

  The water temperature sensor 35 is configured using a thermistor or the like, and measures the water temperature in the water storage container 31. When the water temperature measured by the water temperature sensor 35 exceeds a predetermined temperature (set to the upper limit temperature of use of the ultrasonic transducer 32 or a temperature slightly lower than that), the water 21 is supplied from the water injection device 33 and the water temperature is adjusted. The water temperature in the water storage container 31 is always kept from exceeding the predetermined temperature. Note that the water temperature sensor 35 may not be provided when the water 21 is replenished at a constant cycle and the operation of constantly suppressing the water temperature rise is performed.

  The mist 20 generated by the atomizing unit 30 differs in characteristics such as buoyancy and surface tension (wetting) depending on the particle size. That is, an ultrafine mist having a particle size of less than 10 μm is also called a dry mist and is extremely fine, and thus has a high surface tension and high floating property, but has low wettability when attached to an object. ing. Fine mist having a particle size of 10 to 50 μm is also called wet mist, and has a relatively large particle size compared to the dry mist described above, and thus has a low surface tension and high wettability when attached to an object. have. A relatively coarse mist having a particle size of more than 50 μm has properties close to water droplets.

  The mist 20 generated in the atomization unit 30 collides with the side wall 31b of the water storage container 31 and the pipe wall of the upper pipe line 17 while moving to the warm air supply port 18, or aggregates with each other. As a result, the coarse mist gradually drops and separates, and the fine wet mist increases its abundance ratio. And it introduce | transduces in the rotating drum 4 in the state which has wet mist as a main body.

Here, the mist 20 in a state mainly composed of wet mist is a state in which the wet mist exceeds 50% of the whole in volume abundance, and the particle size distribution of the mist 20 measured by a measuring apparatus using a laser diffraction scattering method is as follows. This means that the average particle size (median diameter D ₅₀ ) is in the range of 10 to ₅₀ μm.

  If the path during which the mist 20 moves to the hot air supply port 18 is long, or if there is a bent part in the path, even the fine wet mist aggregates and falls off, and the wet mist in the mist 20 is separated. Since the existence ratio decreases and the mist 20 is mainly dry mist, it is not desirable. According to the configuration described above, the mist 20 generated in the atomization unit 30 includes the atomization unit 30 (water storage container 31) located above the hot air supply port 18 and the dry air blowing duct 14 (upper duct 17). From the connection port 31e to the dry air blowing duct 14, it is dropped by its own weight, dropped from the hot air supply port 18 into the water tank 3 with wet mist as a main component, and further into the rotating drum 4 be introduced. Moreover, since the blower fan 12 is disposed at a lower position in the washing / drying machine housing 2 and the dry air is sent from the blower fan 12 to the dry air blower duct 14, the atomization unit 30 into which the mist 20 is introduced. In the connection port 31e, the mist 20 is introduced into the dry air flow without being affected by the wind pressure (dynamic pressure) from the blower fan 12.

  Thus, since the movement path from the atomization unit 30 to the hot air supply port 18 is short and is configured to fall by its own weight, it suppresses aggregation of wet mist in the middle of the movement path, and wettability. The mist 20 can be introduced and filled into the rotating drum 4 in a state mainly composed of a wet mist having a particle diameter of 10 to 50 μm, and the surface of the clothes can be effectively moistened. By drying the clothes in a state, wrinkles that have entered the clothes can be effectively reduced.

  Further, in the “wrinkle spreading course”, the effect of reducing the wrinkle of clothing can be obtained without necessarily rotating the rotating drum 4. However, as described above, the rotating drum 4 is rotated. While the clothes in the rotating drum 4 are in a dry state at room temperature, the water temperature in the water storage container 31 rises due to the oscillation of the ultrasonic vibrator 32, so that the generated mist 20 is compared with the clothes surface temperature. And it becomes a high temperature. Accordingly, since the dry mist can also be introduced into the rotating drum 4 at a high temperature, not only the wet mist but also the dry mist has a surface of clothing that is lower than the temperature of the mist and the peripheral wall of the rotating drum 4. 4a or the like is easily condensed and condensed as fine water droplets. At this time, by rotating the rotating drum 4, the clothes are stirred, and the mist 20 including the dry mist is not disturbed by the clothes, and the inside of the rotating drum 4 And the entire garment can be moistened more efficiently.

  In the present embodiment, the mist 20 is sent from the connection port 31e to the dry air blowing conduit 14, dropped by its own weight, put on the air flow, and from the hot air supply port 18 into the water tank 3 and further into the rotating drum 4. In addition to the introduction, when the mist is introduced (when the atomization unit is activated), the rotating drum 4 is gently rotated at a rotation speed of about 45 rpm at which the clothes are stirred. In this way, by rotating the rotating drum 4 gently, wet mist that tends to stay near the bottom in the rotating drum 4 can be filled to every corner in the rotating drum 4. Can be effectively moistened with wet mist having high wettability. And the wrinkles which entered clothing can be effectively reduced by drying the clothing of such a state.

  According to the detailed examination of the present inventors, when the laundry is moistened, it is uniformly moistened at a drying rate of 90 to 96% (ideally 95%), and when dried, the drying rate is 99% or more. It has been found that drying is important. Here, the drying rate is a value obtained by multiplying a value obtained by dividing the weight of the laundry in a state before washing by the weight of the laundry after being moistened by 100 and expressed in%.

  In order to fill the wet mist as described above to every corner of the rotating drum 4, the rotating speed when the rotating drum 4 is rotated gently is suitably 15 to 80 rpm, and this rotating speed is less than 15 rpm. When a part of the mist 20 introduced from the hot air supply port stays in the vicinity of the bottom of the rotating drum 4 and the rotational speed exceeds 80 rpm, a part of the mist 20 is subjected to centrifugal force and the side wall of the rotating drum 4. It is pushed toward the side and collides with the side wall or the like, thereby reducing the presence ratio of the wet mist.

  The amount of mist generated per hour of the ultrasonic vibrator 32 used in the present embodiment is the water temperature of the water 21 in the water storage container 31 and the input voltage to the oscillation circuit unit 37 that drives the ultrasonic vibrator 32. Increase or decrease due to changes.

  For example, when the ultrasonic transducer 32 that oscillates at 1.6 MHz is used, if other conditions are fixed and only the water temperature is changed from 5 ° C. to 30 ° C., the amount of mist generated is about 1.5 times. Further, if only the voltage input to the oscillation circuit is changed from 95V to 107V, the amount of mist generated is also about 1.5 times here.

  Normally, the water temperature change and voltage change described above are normal changes that occur at home, so even if the amount of mist generated is at a minimum, the drying rate of clothing that is optimal for spreading wrinkles will be 90% to 96%. When the adjustment is made, the mist generation amount becomes excessive under the maximum mist generation amount condition, and the garment gets wet up to a dry rate of nearly 70% and becomes non-uniform.

  Conversely, if the mist generation rate is adjusted so that the drying rate of the garment is 90% to 96% under the maximum mist generation rate, the garment will hardly damp and remain at around 99% under the minimum condition. The effect is not obtained.

  Therefore, in order to effectively process clothing, it is desirable to keep the water temperature constant and the input voltage constant, but water temperature measuring means, water temperature adjusting means, input power measuring means, and input voltage adjusting means are required.

  In the present embodiment, the mist processing result is stabilized from 90% to 96% without using complicated water temperature adjusting means and input voltage adjusting means.

  The output of the oscillating circuit and the atomizing ability of the ultrasonic vibrator 32 are determined so that the mist processing result is from 90% to 96% under the conditions of the low water temperature and the low input voltage with the least amount of mist generated. .

  If mist is generated under the conditions of high water temperature and high input voltage at which the amount of mist generated is the largest in this atomization capability, as described above, excessive mist is supplied to the clothing.

  This excess mist is trapped in the bottom wall through hole 4f of the rotating drum bottom wall 4b, and the excess mist is collected. At this time, from the relationship between the contact efficiency between the bottom wall through-hole 4f and the mist, the amount of mist trapped naturally is determined according to the amount of mist, and when the amount of mist is small, the contact efficiency is low, so the trap is almost trapped. However, if the amount of mist is excessive, the contact efficiency is increased, so that much mist is trapped.

  Furthermore, in order to prevent moisture generated by collecting excess mist from entering the rotating drum 4 and coming into contact with the clothes lifted by the rotation, excessive and uneven wetting of the clothes is trapped and collected. Water flows along the radial ribs 4g installed on the back surface of the rotating drum bottom wall 4b by using gravity or centrifugal force, and further intersects with the radial ribs 4g in the previous period and has a dimension higher than that of the radial ribs 4g. Using the circumferential rib 4h installed on the back surface of the rotating drum bottom wall 4b so as to protrude into the water tank 3, the collected moisture is discharged by dropping from the edge of the circumferential rib 4h to the water tank 3 side. The water dropped to the water tank 3 is drained from the water tank 3 by controlling a drain valve (not shown).

  In this way, even if the amount of mist generated by the ultrasonic transducer 32 changes due to the change in the water temperature and the change in the input voltage, the amount of mist supplied into the rotary drum 4 is kept constant. The mist treatment result can be stabilized within the range of 90% to 96% of the drying rate and can be effectively moistened. And by drying the clothing in such a state, wrinkles that have entered the clothing can be effectively reduced and deodorized.

  In the above description, the radial ribs 4g and the circumferential ribs 4h having a dimension higher than the radial ribs 4g and projecting toward the water tank 3 are configured on the back surface of the rotating drum bottom wall 4b. As shown in a) and (b), only the vicinity of the portion where the circumferential rib intersects with the radial rib may have a size higher than that of the radial rib, and the other portion may have a size lower than that of the radial rib.

  As a result, clothing is stuck to the rotating drum bottom wall 4b facing the front of the hot air supply port 18, and the flow of wind flows from the hot air supply port 18 to the water tank 3, the bottom opening 4d, and the rotating drum bottom wall 4b in this order. Even if the circumferential rib 4h has a low dimension, the flow of the wind on the back surface of the rotating drum bottom wall 4b is made free by the portion where the circumferential rib 4h is low, thereby bypassing the portion of the bottom wall 4b covered with clothing. As a result, the flow of wind in the rotating drum is secured, and the air flow in the circulation air passage can be smoothly blown, so that the clothes can be moistened in a shorter time, and also dried in a short time. Therefore, wrinkles of clothing can be reduced in a short time.

  Further, in the above, the radial rib 4g and the circumferential rib 4h are formed on the back surface of the rotating drum bottom wall 4b. However, as shown in FIGS. 11 and 12, a part of the bottom wall 4b is made a separate part. Alternatively, the radial ribs 4g and the circumferential ribs 4h may be formed on the back surface of the bottom wall 4i formed as a separate part. The bottom wall 4i made into a separate part may be fixed to the rotating drum bottom wall 4b by using a hook 4j grown from the separate part bottom wall 4i or a fixing screw boss 4k.

  When the separate part bottom wall 4i is assembled to the rotating drum bottom wall and a gap is formed at the joint, the seal packing 4l may be provided near the outer periphery of the back surface of the separate part bottom wall 4i.

  Thereby, the complicated shape by the radial rib 4g and the circumferential rib 4h formed on the back surface of the separate component bottom wall 4i can be configured as an integrally molded product suitable for mass production.

  In addition, since the bottom wall 4i, which is a separate part, can be assembled later on the rotating drum bottom wall 4b, the assembling process of the rotating drum 4 itself can be simplified.

  In the above embodiment, the example in which the water 21 is used as the mist generation source in the atomization unit 30 has been described. However, an Ag ion electrolytic solution, a detergent solution, a deodorizing solution, and a sterilizing solution are used depending on the application. Etc. may be used, and an effect corresponding to each liquid agent (mist generation source) can be obtained.

  By the way, as described above, the mist generated when the water storage container 31 of the atomization unit 30 is located outside the circulation air passage 9 is supplied near the hot air supply port 18 in the circulation air passage 9 from above. As in the case of this embodiment, or in the case of the present embodiment, the atomizing means is an ultrasonic atomizing method, the water surface is exposed in the circulation air passage, and is located near the hot air supply port to generate and supply mist. Regardless of the method, the bottom wall through-hole 4f is clogged in common when the supplied mist flows down into the water tank through the hot air supply port to effectively wet the laundry. Stain may occur in clothing due to the water being blown away by the air blow during drying. In the latter atomization unit 30 of the present embodiment, the water in the water storage container 31 is particularly dry. Carried by blast of Further stain is likely to occur in clothing overlap.

  Regarding the cause of the water clogging in the bottom wall through-hole 4f, in the above-mentioned “wrinkle spreading course”, the air in the water tank 3 is exhausted by the steady speed rotation of the blower fan 12, dehumidified, and then heated. In the water tank 3, the air is repeatedly blown from the hot air supply port 18 at the upper part of the back wall of the water tank 3, and is stored in the water tank 3 and has a large number of peripheral wall through holes 4 c and bottom wall through holes 4 f in the rotating drum 4. The laundry in the rotary drum 4 by the mist supplied from the atomization unit 30 as a mist supply unit using the circulation air passage 9 for drying the laundry and the atomizing unit 30 on the air blowing side of the circulation air passage 9 In order to execute the mist treatment / drying mode in which the laundry is dried with heated air after the mist treatment for moistening the air, the rotation speed of the blower fan 12 is reduced from the low speed rotation lower than the normal speed rotation in the drying after the mist treatment. Others it is effective so as to high speed rotation to a steady speed rotation in a plurality of stages.

  Thus, when drying is started after the mist processing using the circulation air passage 9, the air blowing fan 12 is rotated at a lower speed than the normal speed rotation for drying, so the air volume of the heated air blown into the water tank 3, Even if the wind speed is lower than that at the time of steady-speed rotation and the bottom wall through hole 4f of the bottom wall 4b of the rotating drum 4 is clogged with water, the force to blow off the water is weakened. Then, the water is introduced into the rotating drum 4 and the water clogged in the bottom wall through hole 4f is blown off to prevent the water from adhering to the laundry such as clothes. In addition, although the air volume and the wind speed are reduced by low-speed rotation, the heated air introduced from the water tank 3 into the rotating drum 4 is clogged in the bottom wall through-hole 4f of the rotating drum 4 while the laundry is being dried. Since the water can be heated and reduced in volume by evaporation to improve air permeability, the drying time can be reduced at a low speed by moving to a steady speed directly or at one or more intermediate speeds in a timely manner. Can be prolonged without problems caused by blowing off water.

  As a result, in the mist process using the circulation air passage 9, the wet drum surface is effectively wetted by introducing and filling the rotary drum 4 with a wet mist having a particle size excellent in wettability as a main component, Even if the bottom wall through-hole 4f of the rotating drum 4 is clogged with water due to the mist process, the drying process is effective to reduce the wrinkles that have entered the clothes and to effectively deodorize them. The blower fan 12 starts at a lower speed than the steady speed rotation and starts to reduce the air volume and speed. Therefore, it is possible to prevent the clogged water from being blown away and unevenly adhering to the clothes and causing stains. By increasing the speed to the steady rotation, it is possible to prevent the drying time from being prolonged at a low speed without problems caused by blowing off water.

  In this case, the initial low-speed rotation when the blower fan 12 is dried may be approximately equal to 500 rpm, which is the steady-speed rotation when the blower fan 12 is mist-processed. Thereby, even during the mist processing, the air blowing fan 12 is rotated at a low speed so that the mist does not collide with each part and trapped, thereby improving the fluidity of the mist around the laundry and the uniformity thereof. In addition, if the low-speed rotation is continued to start drying and proceed to the speed increase point, the operation in the above case can be realized by simple control.

  Instead, after the mist process is completed, the steady speed rotation during the mist process, which is lower than the low speed rotation during the drying process, is maintained until the drying starts. It is possible to increase the rotation speed to the steady speed rotation at the time.

  In this case, it is preferable to set the steady speed rotation at the time of mist processing to about 500 rpm, the low speed rotation at the time of drying to 3700 to 4500 rpm, and the steady speed rotation at the time of drying to about 5800 rpm, respectively. By raising the speed from 500 rpm to 3700 to 4500 rpm and allowing the water clogged in the bottom wall through-hole 4f to be dried in 5 to 8 minutes, the drying speed can be increased without flying the clogged water in the bottom through-hole 4f. As a result, there is an advantage that the drying time is shortened.

  In addition, for the reason that the water in the water storage container 31 is carried by air blowing during drying, the air in the water tank 3 is exhausted by the blower fan 12 and dehumidified, and then heated. The air is repeatedly blown from the hot air supply port 18 at the upper part of the back wall of the water tank 3 to dry the laundry in the rotating drum 4 housed in the water tank 3 and having a plurality of peripheral wall through holes 4c and bottom wall through holes 4f. Utilizing the circulation air passage 9 and the atomizing unit 30 as a mist supply unit for supplying the mist by exposing the water surface of the water storage container 31 to the air blowing side of the circulation air passage 9 and exposing the water in the circulation air passage 9. Thus, after the mist process in which the laundry in the rotary drum 4 is moistened by the mist generated and supplied by the atomization unit 30, the mist process is performed to execute the mist process / drying mode in which the laundry is dried by the heated air. For later drying The rotational speed of the blower fan 12 is set to a lower rotational speed than the normal rotational speed until the water level of the water storage container 31 of the atomizing unit 31 drops from the full water level to at least a predetermined water level or until a predetermined time corresponding thereto passes. It is effective to switch to steady speed rotation.

  In this way, the circulation air passage 9 and the atomization unit 30 that supplies the mist by atomizing the water surface of the water storage container 31 exposed in the circulation air passage 9 on the air blowing side of the circulation air passage 9 are used. When drying is started after the mist treatment, the blower fan 12 is rotated at a constant speed until the water level of the water storage container 31 in the atomization unit 30 drops from the full water level to at least a predetermined water level or until a predetermined time corresponding thereto elapses. By making the rotation at a low speed, the air volume and the wind speed of the heated air flowing in contact with the water surface of the water storage container 31 of the atomization unit 30 are reduced as compared with the normal rotation speed. Even when the water level is not lowered from the full water level, the water is not carried and the heated air is carried to prevent the water from being attached to laundry such as clothes. In addition, although the air volume and the wind speed are reduced by the low-speed rotation, the heated air introduced from the water tank 3 into the rotating drum 4 allows the laundry to dry, and the water in the water storage container 31 reaches a predetermined level. As the water level falls, it shifts to steady speed rotation, so that prolonged drying time at low speed rotation can be suppressed without problems caused by carrying water.

  As a result, the wet mist having a particle diameter excellent in wettability in the mist processing using the atomizing unit 30 in which the water surface of the water storage container 31 is exposed in the vicinity of the hot air supply port 18 to the water tank 3 in the circulation air passage 9. In the state where the main body is introduced and filled in the rotating drum 4, the surface of the garment is effectively moistened, transferred to drying, the wrinkles in the garment are effectively reduced, and the deodorization can be performed. Even if the mist processing is completed without the water level of the water storage container 31 dropping from the full water level to the predetermined level, the drying is performed for a time corresponding to whether the water in the water storage container 31 falls from the full water level to the predetermined water level. During this time, the air blower 12 starts at a lower speed than the steady speed rotation, and the air volume and speed are reduced, so that the heated air carries the water in the water storage container 31 and adheres unevenly to the clothes and becomes stained. Can prevent By speeding timely steady rotation, suppress the drying time at low speed rotation is unnecessarily protracted without problems by blowing water.

  When the low-speed rotation at the time of drying is performed until the water level of the water storage container 31 is reduced to about 1/5 to 1/4 from the full water level, the water storage container 31 is reliably prevented from being carried around, Rotation can prevent the drying function from being extended. To that end, the low-speed rotation end control during drying can be appropriately handled by detecting the water level with the water level sensor, but the time required to reduce the volume from the full water level to about 1/5 to 1/4. While reliably carrying the water in the container 31, it is possible to prevent the drying function from being extended by low-speed rotation.

  Here, in the “wrinkle spreading course”, the atomization path 9 and the atomization in which the water surface of the water storage container 31 is exposed to the circulation air path 9 on the air blowing side of the circulation air path 9 and atomizes to supply the mist. When one example of the mist processing / drying mode sequence in the present embodiment is shown when drying is started after the mist processing using the unit 30, the mist processing is executed for 15 minutes and drying for 20 minutes. The rotation speed of the folding fan 12 is allowed to reach 500 rpm at the start time, and is maintained at the end of the mist process after 15 minutes, and then, when the drying starts, the speed is changed to 4800 rpm at the time of drying, and 8 minutes have passed. Later, the speed is increased to 5800 rpm as a steady speed rotation at the time of drying, and the drying is finished when the remaining 12 minutes have passed. During the mist treatment, the rotating drum 4 is rotated at 45 rpm in the forward direction for 14.4 seconds on, off 4.4 seconds, and 14.4 seconds in the reverse direction, and the water clogged in the bottom wall through hole 4f is repeated. Battering of the laundry due to blowing away and carrying water from the water surface in the water storage container 31 was prevented, and the results of suitable wrinkle spreading and deodorization were obtained.

  In the above embodiment, the technical content of the present invention has been described by taking a drum-type washing / drying machine in which the rotating drum is inclined as an example. However, the rotating drum is arranged in the horizontal direction (the axis of the rotating drum is in the vertical direction). The technical contents of the present invention can also be applied to a washing machine), and can also be applied to a washing machine without a dryer.

It is side surface sectional drawing for demonstrating the structure of the drum type washing-drying machine which concerns on embodiment of this invention. It is the perspective view seen from the housing | casing back side for demonstrating arrangement | positioning of the circulation ventilation path | route of the drum-type washing dryer which concerns on embodiment of this invention, and the atomization unit. It is sectional drawing which notches and shows a part seen from the housing | casing back surface for demonstrating the structure of the circulation ventilation path | route of the drum-type washing dryer which concerns on embodiment of this invention, and the atomization unit. It is side surface sectional drawing for demonstrating the connection structure of the atomization unit and water tank of the drum type washing-drying machine which concerns on embodiment of this invention. It is side surface sectional drawing for demonstrating the structure of the atomization unit of the drum type washing-drying machine which concerns on embodiment of this invention. It is a back sectional view for explaining the structure of the atomization unit of the drum type washing and drying machine concerning an embodiment of the invention. It is a rear view for demonstrating the structural example of the rotating drum bottom wall made into another components of the drum type washing-drying machine which concerns on another embodiment of this invention. It is side surface sectional drawing for demonstrating the structural example of the rotating drum bottom wall made into another components of the drum type washing-drying machine which concerns on another embodiment of this invention. It is a rear view for demonstrating another structural example of the rotating drum bottom wall made into another component of the drum type washing-drying machine which concerns on embodiment of this invention. It is side surface sectional drawing for demonstrating another structural example of the rotating drum bottom wall made into another component of the drum type washing-drying machine which concerns on another embodiment of this invention. It is a rear view for demonstrating the other structural example of the rotating drum bottom wall made into another components of the drum type washing-drying machine which concerns on embodiment of this invention. It is side surface sectional drawing for demonstrating the other structural example of the rotating drum bottom wall made into another components of the drum type washing-drying machine which concerns on embodiment of this invention. It is explanatory drawing of the wrinkle spreading mechanism by the drum type washing-drying machine which concerns on embodiment of this invention. It is explanatory drawing of the deodorizing mechanism at the time of the mist process by the drum type washing / drying machine which concerns on embodiment of this invention. It is explanatory drawing of the drainage mechanism with dew condensation water at the time of the drying of the odor molecule isolate | separated and deodorized from the clothing at the time of the mist process of the drum type washing dryer which concerns on another embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum type washing / drying machine 2 Washing / drying machine housing 3 Water tank 4 Rotating drum 4c Peripheral wall through hole 4f Bottom wall through hole 6 Motor 9 Circulating air flow path 10 Evaporator (dehumidifying means)
11 Condenser (heating means)
12 Blower fan (Blower unit)
18 Hot air supply port 20 Mist 21 Water (liquid)
30 Atomizing unit 31 Water storage container 32 Ultrasonic vibrator 33 Water injection device 34 Water injection hose

Claims (8)

The air in the water tank is exhausted and dehumidified by rotating at a constant speed of the blower fan, heated, and repeatedly blown into the water tank from a part of the rear wall of the water tank. A circulation ventilation path for drying the laundry in the rotating drum held on the bottom wall, and a mist supply section on the ventilation side of the circulation ventilation path, and the mist in the rotation drum is supplied by the mist supplied from the mist supply section. A mist treatment / drying mode for drying the laundry with heated air after mist treatment for moistening the laundry,
In the drying after the mist treatment, the drum-type washing and drying machine is characterized in that the rotational speed of the blower fan is rotated at a high speed from a low speed lower than a steady speed to a steady speed in one or more stages.   The drum type laundry dryer according to claim 1, wherein an initial low-speed rotation of the blower fan during drying is equivalent to a steady-speed rotation of the blower fan during mist processing.   The drum-type washing / drying machine according to claim 1, wherein after the mist treatment is finished, the steady-state rotation at the time of the mist treatment is maintained lower than the low-speed rotation at the time of drying until the drying is started.   The drum-type laundry dryer according to claim 3, wherein the steady-speed rotation at the time of mist processing is about 500 rpm, the low-speed rotation at the time of drying is 3700-4500 rpm, and the steady-speed rotation at the time of drying is about 5800 rpm.   The drum type laundry dryer according to claim 4, wherein the low-speed rotation at the time of drying is performed until 5 to 8 minutes have elapsed from the start of drying. The air in the water tank is exhausted and dehumidified by a blower fan, and then heated and repeatedly blown from a part of the rear wall of the water tank in the water tank, and is stored in the water tank in the rotating drum having a large number of through holes. A mist supply section for drying laundry, and a mist supply section for supplying mist by atomizing the water surface of the water storage section exposed in the circulation blast path on the blast side of the circulation blast path. A mist treatment / drying mode for drying the laundry with heated air after the mist treatment in which the laundry in the rotating drum is moistened with the mist atomized and supplied by
In the drying after the mist treatment, the rotational speed of the blower fan is changed from the steady speed rotation until the water level of the water storage part in the mist supply part falls from the full water level to at least a predetermined water level or until a predetermined time corresponding thereto elapses. A drum-type washing / drying machine characterized by a low-speed rotation and then switching to a steady-speed rotation.   The drum-type washing / drying machine according to claim 6, wherein the low-speed rotation at the time of drying is performed until the water level of the water reservoir is reduced to about 1/5 to 1/4 of the full water level.   The drum type washing and drying according to any one of claims 1 to 7, wherein the mist supply unit is located in the vicinity of a hot air supply port to a water tank provided in an upper part of a rear wall of the water tank of the circulation air flow path. Machine.

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