WO2015158154A1

WO2015158154A1 - Ozone treatment device

Info

Publication number: WO2015158154A1
Application number: PCT/CN2014/096044
Authority: WO
Inventors: 福井慎二
Original assignee: 海尔亚洲国际株式会社; 青岛海尔洗衣机有限公司
Priority date: 2014-04-15
Filing date: 2014-12-31
Publication date: 2015-10-22
Also published as: JP6333036B2; JP2015202225A

Abstract

An ozone treatment device capable of suppressing power consumption and shortening the waiting time for taking out a treated object even if the treated object is not heat-resistant. A drum laundry dryer (1) is provided with: a drum, for accommodating a treated object and being kept almost airtight by closing a door; an ozone generation device (61), for generating ozone supplied to the drum; an ultrasonic humidification device (70), for generating vapor used for humidifying the drum; and a control part (101), for performing an ozone generation process of supplying ozone to the drum and an ozone decomposition process of decomposing ozone remaining in the drum after the ozone generation process. The control part (101) enables the ozone generation device (61) to work during the ozone generation process and then enables the ultrasonic humidification device (70) to work during the ozone decomposition process.

Description

Ozone treatment unit

Technical field

The present invention relates to an ozone treatment apparatus that performs deodorization, sterilization, and the like of a treatment target by bringing ozone into contact with an object to be treated. In addition to the washing function, a washing machine having a function of deodorizing and sterilizing clothes by ozone, and a drying function, in addition to the drying function, can be used for deodorization and sterilization of clothes by ozone. In addition to the cleaning function, the functional clothes dryer has a shoe washing machine that performs functions such as deodorization and sterilization of shoes, and a western-style dry cleaning machine that deodorizes and deodorizes the suit by ozone.

Background technique

In the past, a washing machine having an ozone generator is provided, and ozone generated by the ozone generating device is supplied to a washing tub for storing laundry, and ozone is brought into contact with the laundry to deodorize and sterilize the laundry (refer to the patent literature). 1).

As described above, in the washing machine having the ozone-based deodorizing/sterilizing function, when the deodorization, sterilization, and the like of the laundry are ended and the generation of ozone is stopped, the door lock is not released, and the laundry is left as it is. Then, the residual ozone disappears by itself, and when the concentration of ozone in the washing tank is somewhat lowered, the door lock can be released to take out the laundry.

It can be seen that the higher the surrounding temperature, the more the decomposition of ozone is promoted. Therefore, in such a washing machine, in order to shorten the time from the stop of the supply of ozone to the time when the laundry can be taken out, after the generation of ozone is stopped, the inside of the washing tank can be heated by the heater to promote the decomposition of ozone in the washing tank. structure.

Prior art literature

Patent literature

Patent Document 1: Japanese Laid-Open Patent Publication No. 2007-195896.

Summary of the invention

Problems to be solved by the invention

As described above, when the inside of the washing tub is heated by the heater to promote the decomposition of ozone, it is easy to consume relatively large electric power. Moreover, such a configuration is difficult to apply to an object such as deodorant. Not heat resistant.

Therefore, the inventors of the present application have considered a method of promoting decomposition of ozone by other conditions instead of heating. As a result, it has been found that after the supply of ozone is stopped, the decomposition of ozone is promoted by humidifying the inside of the washing tank.

The present invention has been made in view of the new findings of promoting the decomposition of ozone by increasing the humidity, and it is an object of the invention to provide a method for suppressing power consumption and shortening even when the object to be processed is not heat-resistant. An ozone treatment device that stops the supply of ozone to the time when the object to be processed can be taken out.

Technical solution for solving the problem

An ozone treatment device according to a main aspect of the present invention includes: a storage unit that accommodates a processing object, and is kept in a sealed state by closing of a door; and an ozone generating unit that generates ozone supplied to the storage unit; and a mist generating unit generates a mist for humidifying the storage portion; and a control unit that performs an ozone generation process for supplying ozone to the storage portion and an ozone decomposition process for decomposing ozone remaining in the storage portion after the ozone generation process. Here, the control unit operates the mist generating unit during the ozone decomposition process after the ozone generating unit is operated in the ozone generating process.

According to the above configuration, the mist is supplied to the storage chamber during the ozone decomposition, and the storage chamber is humidified. Thus, in order to promote the decomposition of ozone remaining in the storage chamber, the time from the stop of the supply of ozone to the removal of the object to be processed can be shortened. In addition, since the power consumption required for humidification by the ultrasonic humidification device or the like can be made smaller than the power consumption required for heating by the heater, it is possible to suppress the power consumption and to promote the decomposition of residual ozone. . Further, even when the object to be treated is not heat-resistant, decomposition of residual ozone can be promoted.

The ozone treatment device according to the present aspect may further include: a wind generation unit that generates wind in the storage unit; and a hole portion that is provided in the storage unit and that can generate wind in the storage unit The flow discharges the mist to the outside. In this case, the control unit operates the wind generating unit after stopping the mist generating unit during the ozone decomposition.

According to the configuration described above, the user can take out the object to be processed from the accommodating portion while the humidity is lowered in the accommodating portion by discharging the mist to the outside. Therefore, it is possible to prevent the user from putting the handle into the storage portion having a high humidity and feeling uncomfortable.

In the ozone treatment apparatus according to the aspect of the invention, the accommodating portion may include an outer tub and a drum that is disposed in the outer tub and that is rotatable about a tilt axis that is inclined with respect to a horizontal axis or a horizontal direction.

In the case of such a configuration, the control unit may be configured to rotate the drum when the storage unit is humidified by the mist from the mist generating unit.

As such a structure, the drum is completely humidified by rotating the drum during the ozonolysis process. Thereby, the decomposition of ozone in the drum can be uniformly promoted.

In the case of the above configuration, the ozone processing apparatus may be configured to include a rotation selection operation unit that accepts an operation of selecting whether or not to rotate the drum.

With such a configuration, when the object to be processed which is not desired to be stirred by the rotation of the drum is deodorized or sterilized, the drum can be prevented from rotating by the operation of the rotation selecting operation portion. Thereby, it is possible to prevent the occurrence of damage such as damage to the object to be processed by the rotation of the drum.

The ozone treatment apparatus according to the aspect of the invention may be configured to include a heating unit that heats the storage unit. In this case, the control unit causes the mist generating unit to operate together with the heating unit during the ozone decomposition process.

According to the configuration described above, since the decomposition of ozone is greatly promoted as compared with the configuration in which only the humidification in the storage portion is performed, the time during which the object to be processed can be taken out can be shortened. Further, since the time during which the object to be processed can be taken out can be shortened as compared with the configuration in which only the heating in the storage portion is performed, the power consumption as the entire ozone decomposition process can be suppressed as compared with the configuration in which only the heating is performed.

In the case of the above configuration, the ozone processing apparatus may be configured to include a heating selection operation unit that accepts an operation of selecting whether or not to heat the storage unit.

With such a configuration, when the object to be treated which is not heat-resistant is deodorized or sterilized, the operation of the selection operation unit by heating can be set so as not to heat the inside of the storage portion, so that damage by heating can be prevented. The case of an object that is not heat-resistant.

Effect of the invention

According to the present invention, it is possible to provide an ozone treatment apparatus that can reduce the time from the supply of the stopped ozone to the time when the object to be processed can be taken out, even when the object to be processed is not heat-resistant.

The effects and significance of the present invention will be further clarified by the description of the embodiments described below. However, the following embodiments are merely illustrative of the practice of the present invention, and the present invention is not limited by the following description.

DRAWINGS

Fig. 1 is a side cross-sectional view showing a configuration of a drum type washing and drying machine according to an embodiment.

FIG. 2 is a side view showing a cross section of the water storage tank showing the configuration of the ultrasonic humidifier according to the embodiment.

3 is a block diagram showing a configuration of a drum type washing and drying machine according to an embodiment.

4 is a view showing changes with time in the ozone concentration in the drum when it is naturally placed after the completion of the ozone generating process according to the embodiment, and the drum in the case where the drum is humidified after the ozone generating process is completed. A graph of the change in ozone concentration over time.

FIG. 5 is a flowchart showing a control process in the air washing process according to the embodiment.

FIG. 6 is a flowchart showing a control process in the humidification process according to the embodiment.

FIG. 7 is a side cross-sectional view showing a configuration of a drum type washing and drying machine according to a first modification.

FIG. 8 is a flowchart showing a control process in the humidification process according to Modification 1.

FIG. 9 is a side cross-sectional view showing a configuration of a drum type washing and drying machine according to a second modification.

FIG. 10 is a flowchart showing a control process in the air washing process according to Modification 2.

FIG. 11 is a flowchart showing a control process in the humidification process according to Modification 2.

FIG. 12 is a flowchart showing a control process in the humidification process according to another modification.

FIG. 13 is a flowchart showing a control process in the humidification process according to another modification.

FIG. 14 is a flowchart showing a control process in a humidification process according to another modification.

detailed description

Hereinafter, a drum type washing and drying machine 1 as an embodiment of the ozone treatment apparatus of the present invention will be described with reference to the drawings.

Fig. 1 is a side cross-sectional view showing the structure of a drum type washing and drying machine 1.

The drum type laundry dryer 1 has a casing 10 constituting an appearance. The front surface 10a of the casing 10 is inclined upward from the central portion, and the laundry inlet 11 is formed on the inclined surface. The inlet 11 is covered by a door 12 that is freely opened and closed.

In the casing 10, the outer tank 20 is elastically supported by a plurality of dampers 21. A rotatable drum 22 is disposed in the outer tank 20. The accommodating portion of the present invention is composed of an outer tub 20 and a drum 22. The outer tub 20 and the drum 22 are inclined with respect to the horizontal direction and the rear surface side. Thereby, the drum 22 rotates centering on the inclination axis inclined with respect to the horizontal direction. The inclination angle of the outer tub 20 and the drum 22 can be set to about 10 to 20 degrees. The opening portion 20a of the front surface of the outer tub 20 and the opening of the front surface of the drum 22 The mouth portion 22a faces the input port 11, and is closed by the

input ports

11 and 12. On the inner circumferential surface of the drum 22, a plurality of dehydration holes 22b are formed. Further, on the inner circumferential surface of the drum 22, the three baffles 23 are disposed at substantially equal intervals in the circumferential direction.

An exhaust portion 20b formed of a plurality of small holes is provided in an upper portion of the outer tub 20. For example, when the door 12 is closed, a part of the air in the outer tub 20 is pressed to the door 12 to be discharged to the outside from the exhaust portion 20b. Thereby, the closing of the door 12 is smoothly performed. The exhaust portion 20b corresponds to the hole portion of the present invention. Although the exhaust portion 20b is present, in the state in which the door 12 is closed, the inside of the outer tub 20 is almost sealed.

A drive motor 30 that generates torque for driving the drum 22 is disposed behind the outer tank 20. The drive motor 30 is, for example, an outer rotor type DC brushless motor. The drive motor 30 rotates the drum 22 at a rotational speed at which the centrifugal force of the laundry added to the drum 22 is smaller than the gravity during the washing process and the rinsing process. On the other hand, the drive motor 30 rotates the drum 22 at a rotational speed at which the centrifugal force of the laundry added to the drum 22 is significantly larger than the gravity during the dehydration process.

A drain port portion 20c is formed at the bottom of the outer tub 20. A drain valve 40 is provided in the drain port portion 20c. The drain valve 40 is connected to the drain pipe 41. When the drain valve 40 is opened, the water accumulated in the outer tank 20 flows through the drain pipe 41 and is discharged to the outside of the machine.

A drying unit 50 is disposed outside the outer tank 20. The drying unit 50 includes a circulation air passage 51, a circulation blower 52, and a heater 53. The intake port 51a of the circulation air passage 51 is provided at a lower portion of the rear surface of the outer tub 20, and the exhaust port 51b of the circulation air passage 51 is provided at a front upper portion of the outer tub 20. The circulating blower 52 circulates the drying air for drying the laundry between the outer tank 20 and the circulation air path 51. The heater 53 heats the drying wind. The circulation air passage 51 includes a vertical air passage 51c that extends up and down along the rear surface of the outer tank 20. The vertical air passage 51c functions as a dehumidifying unit. In other words, in the vertical air passage 51c, water flows from above, and moisture of the laundry in the drum 22 is taken in, and heat is exchanged between the drying air discharged from the outer tank 20 and the water flowing through the vertical air passage 51c. Thereby, the moisture of the drying wind is removed. The circulating blower 52 corresponds to the wind generating portion of the present invention.

An ozone generating device 61 is disposed above the outer tank 20. The ozone generating device 61 is a discharge type ozone generating device that generates a discharge such as a corona discharge or a silent discharge between a pair of electrodes, and generates ozone from air flowing between the pair of electrodes. The ozone generating device 61 is connected to the intake port side of the circulation blower 52 in the circulation air passage 51 via the ozone supply pipe 62. When the circulation blower 52 rotates, since the intake port side becomes a negative pressure, the ozone generated by the ozone generating device 61 is sucked into the circulation blower 52. The inhaled ozone is mixed with the dry air and supplied into the drum 22. The ozone generating device 61 may be of a type other than the discharging method, and may be, for example, an ultraviolet generating ozone generating device. The ozone generating device 61 is equivalent to the present hair Ming Ozone Generation Department.

An ultrasonic humidifying device 70 is disposed above the outer tank 20. The ultrasonic humidifying device 70 generates mist. The generated mist is supplied into the outer tub 20 and the drum 22 through the mist supply pipe 71. The ultrasonic humidifying device 70 corresponds to the mist generating portion of the present invention.

A water supply valve 80 is disposed at a rear upper portion of the casing 10. The water supply valve 80 is connected to the faucet. The water supply valve 80 is a three-way valve having a first valve 81, a second valve 82, and a third valve 83. The first valve 81 is connected to the rear of the outer tank 20 via a first tube 84. In the water supply process, when the first valve 81 is opened, the tap water flowing through the first pipe 84 is supplied into the outer tank 20. The second valve 82 is connected to the upper portion of the vertical air passage 51c via the second pipe 85. During the drying process, when the second valve 82 is opened, the tap water that has passed through the second pipe 85 is supplied to the vertical wind path 51c. As described above, the water supplied to the vertical air passage 51c is used for dehumidification of the drying air. The third valve 83 is connected to the ultrasonic humidifying device 70 via the third pipe 86. When it is necessary to supply water to the ultrasonic humidifying device 70, the third valve 83 is opened. When the third valve 83 is opened, the tap water that has passed through the third pipe 86 is supplied to the ultrasonic humidifying device 70.

FIG. 2 is a side view showing a cross section of the water storage tank 701 showing the configuration of the ultrasonic humidifier 70.

The ultrasonic humidifying device 70 has a water storage tank 701 that stores water. In the water storage tank 701, an intake port 701a is formed on the rear surface, a discharge port 701b is formed on the front surface, and a water supply port 701c is formed on the upper surface. Further, in the water storage tank 701, an ultrasonic oscillator 702 is provided on the bottom surface, and a water level detector 703 is provided on the front surface. An intake pipe 704 is connected to the intake port 701a. An intake fan 705 is provided in the intake pipe 704. The discharge port 701b is connected to the mist supply pipe 71. The water supply port 701c is connected to the third pipe 86.

The water level detector 703 detects the water level of the upper limit and the water level of the lower limit. When the water level of the lower limit is detected by the water level detector 703, the third valve 83 is opened, and the water is supplied to the water storage tank 701 through the third pipe 86. When the water level detector 703 detects the upper limit of water, the third valve 83 is closed to stop the supply of water. The ultrasonic oscillator 702 and the intake fan 705 operate in a state where water is accumulated in the water storage tank 701. When the ultrasonic oscillator 702 operates, mist is generated from the accumulated water by ultrasonic vibration. When the intake fan 705 is operated, air is taken in by the intake pipe 704, and the sucked air is introduced into the water storage tank 701. The introduced air acquires the mist and is discharged from the discharge port 701b. The air that has acquired the mist is supplied into the drum 22 through the mist supply pipe 71 and the outer tank 20.

FIG. 3 is a block diagram showing the configuration of the drum type laundry dryer 1.

The drum type washing and drying machine 1 includes a control unit 101, a storage unit 102, an operation unit 103, a water level sensor 104, and a door lock device 105 in addition to the above configuration.

The operation unit 103 includes a power button 103a, a start button 103b, a process selection button 103c, and an air washing button 103d. The power button 103a is a button for turning on and off the power of the drum type laundry dryer 1. The start button 103b is a button for starting the operation. The process selection button 103c is a button for selecting an arbitrary operation progress from among a plurality of operation processes involved in the washing operation, the washing and drying operation, and the drying operation. The air washing button 103d is a button for selecting an air washing course that is provided separately from the running progress of the washing operation or the like. In addition, the operation of the air washing process will be described in detail later. The operation unit 103 outputs an input signal corresponding to the button operated by the user to the control unit 101. The operation unit 103 corresponds to the rotation selection operation unit of the present invention.

The water level sensor 104 detects the water level in the outer tank 20, and outputs a water level detection signal corresponding to the detected water level to the control unit 101.

The door lock device 105 performs locking and unlocking of the door 12 in accordance with a control signal from the control unit 101.

The storage unit 102 includes an EEPROM, a RAM, and the like. The storage unit 102 stores a program for performing a washing operation of various washing operation processes, and a program for storing an operation for executing the air washing process. Further, in the storage section 102, various parameters and various control flags for execution of these programs are stored.

The control unit 101 controls the drive motor 30, the water supply valve 80, the drain valve 40, the circulation blower 52, the heater 53, and the ozone generating device 61 based on the signals stored in the storage unit 102 based on the respective signals from the operation unit 103, the water level sensor 104, and the like. Each load of the ultrasonic humidifying device 70, the door lock device 105, and the like.

The drum type washing and drying machine 1 performs a washing operation, a washing and drying operation, or a drying operation of various operation processes in accordance with a selection operation by a user based on the process selection button 103c. The washing operation is an operation in which only washing is performed, and the washing process, the intermediate dehydration process, the rinsing process, and the final dehydration process are sequentially performed. The washing and drying operation is an operation that is continuously performed from washing to drying, and the drying process is continued after the final dehydration process. The drying operation is a drying operation only, and only the drying process is performed.

In the washing process and the rinsing process, in the state where the water is accumulated in the outer tank 20 until the predetermined water level of the lower edge of the inlet port 11 is not reached, the centrifugal force of the drum 22 acting on the laundry in the drum 22 is smaller than the gravity. The rotation speed is rotated right and left. The laundry in the drum 22 is lifted up by the baffle 23 to fall, and can fall to the inner circumferential surface of the drum 22. Thereby, the laundry is washed or rinsed.

In the intermediate dehydration process and the final dehydration process, the drum 22 is unidirectionally rotated by the centrifugal force acting on the laundry in the drum 22 at a rotational speed which is significantly increased by gravity. Washing by the action of centrifugal force The object is pressed to the inner circumferential surface of the drum 22 for dehydration.

During the drying process, the drying air heated by the heater 53 circulates between the circulation air path 51 and the outer tank 20. Further, as with the washing process and the rinsing process, the drum 22 is rotated right and left. The laundry in the drum 22 is in contact with the drying air introduced into the drum 22 while being agitated by the baffle 23. The drying air that has taken in moisture from the laundry is dehumidified in the vertical air passage 51c, and then heated again by the heater 53 to be introduced into the drum 22. Dry the laundry like this. Further, in the case where the laundry which is not desired to be agitated is dried, the drum 22 is not rotated during the drying process.

Further, the drum type washing and drying machine 1 is different from the above-described washing operation and the like, and based on the operation of the air washing button 103d by the user, deodorization and sterilization of the object to be processed such as clothes, bags, shoes, and the like are performed by ozone. The operation of the air washing process.

The operation of the air washing process includes an ozone generating process, supplying ozone generated by the ozone generating device 61 to the drum 22 for deodorizing and sterilizing the object to be treated, and an ozone decomposing process, which is carried out after the ozone generating process. The decomposition causes the ozone remaining in the drum 22 to disappear. After the ozone concentration in the drum 22 is sufficiently lowered by the ozonolysis process, the air washing process is completed, and the door 12 can be unlocked and the object to be processed can be taken out.

In order to shorten the time from the end of the ozone generation process to the time when the object to be processed can be taken out (hereinafter referred to as "takeout waiting time"), it is necessary to promote decomposition of ozone.

It can be seen that the higher the surrounding temperature, the more the decomposition of ozone is promoted. Therefore, for example, it is possible to adopt a configuration in which the air heated by the heater is supplied into the drum 22 and the inside of the drum 22 is heated to promote decomposition of ozone. However, in the case where the decomposition of ozone is promoted by heating, it is easy to consume relatively large electric power. Further, such a configuration is difficult to apply to a case where the object to be processed is not heat-resistant.

Therefore, the inventors of the present application have considered that the method of promoting the decomposition of ozone by other conditions instead of heating is that it is found that the inside of the drum 22 in which ozone remains is humidified, and decomposition of ozone can be promoted.

Fig. 4 (a) is a view showing changes with time in the concentration of ozone in the drum 22 in the case of natural placement after the completion of the ozone generating process. 4(b) and 4(c) are diagrams showing changes with time in the ozone concentration in the drum 22 when the drum 22 is humidified after the ozone generation process is completed. Fig. 4 (b) is a view showing changes with time in the ozone concentration in the case where the humidity in the drum 22 is raised to around 100% in the mist supply drum 22, and Fig. 4(c) shows that the mist is supplied into the drum 22 to make the drum. The humidity in 22 rises to a change in ozone concentration over time in almost 80% of cases. 4(a) to 4(c) are diagrams showing that the ozone generation process is performed in a state where the ozone concentration in the drum 22 exceeds 20 ppm, and the odor is stopped. The supply of oxygen is a graph of ozone concentration, temperature, and humidity in the drum 22 until the concentration of ozone in the drum 22 becomes 0.09 ppm.

Further, in the tests of FIGS. 4( a ) to 4 ( c ), in order to easily confirm the effect of promoting the decomposition of the humidified ozone, the ozone concentration in the ozone generation process is set to be higher than the actual air washing process. A value of high ozone concentration.

As shown in Figs. 4(b) and 4(c), when the inside of the drum 22 is humidified, it is clear that the supply of ozone is stopped as compared with the case of natural placement as shown in Fig. 4(a). The time until the ozone concentration is lowered to 0.09% is shortened, and when the inside of the drum 22 is humidified, the decomposition of ozone is promoted.

Although the reason for reducing the ozone concentration based on humidification is not clear, it is possible to consider the following reasons: the ozone gas is dissolved in minute water (fog) in humidification, or reacts and decomposes. The reaction mechanism is the same as that of ozone in water, and it is considered to advance the following reaction.

O ₃ +OH ^- O ₂ ^- +HO ₂

O ₃ +HO ₂ 2O ₂ +OH

O ₃ +OHO ₂ +HO ₂

2HO ₂ O ₃ +H ₂ O

HO ₂ +OHO ₂ +H ₂ O

In the drum-type washer-dryer 1 of the present embodiment, according to a new insight that the decomposition of ozone is promoted by humidification, the ozone decomposing process in the air washing process is humidified by supplying the mist into the drum 22 and humidifying the inside of the drum 22. The process and the dehumidification process of removing the mist in the drum 22 and reducing the humidity in the drum 22 are formed.

The specific control contents in the operation of the air washing process will be described below.

Fig. 5 is a flow chart showing a control process in the air washing process. When the air washing process is selected by the operation of the air washing button 103d, then, when the start button 103b is operated, the control portion 101 starts the operation of the air washing process. Further, by the number of times the air washing button 103d is pressed, it is set by the user whether or not the drum 22 is rotated during the air washing process. When the user stores the object to be processed, which is not desired to be agitated by the rotation of the drum 22, such as a bag, a shoe, or a deformable garment, in the drum 22, the setting is made such that the drum 22 does not rotate.

When the operation is started, the control section 101 first executes the drain trap water supply process (S11). In the drain trap water supply process, the control unit 101 opens the first valve 81 in a state where the drain valve 40 is opened, and supplies water. Go inside the outer slot 20. A drain trap for storing water in advance is provided downstream of the drain valve 40, and water supplied to the outer tank 20 is accumulated in the drain trap through the drain valve 40. An overflow pipe extending from the overflow port provided in the outer tank 20 is connected between the drain valve 40 and the drain trap. Since the water seal is not performed in the drain trap, ozone in the supply drum 22 is prevented from leaking out of the machine through the overflow pipe and the drain pipe 41 during the ozone generation process.

The predetermined water supply time, for example, when 1 minute and 20 seconds elapses, the control unit 101 closes the first valve 81, and ends the drain trap water supply process.

Next, the control unit 101 determines whether or not the setting for rotating the drum 22 is performed (S12). When the control unit 101 performs the setting for rotating the drum 22 (S12: YES), after the rotation of the drum 22 is started (S13), the process of the ozone generating process is entered (S14), and if the drum 22 is not rotated, the setting is performed. When it is fixed (S12: NO), the drum 22 is not rotated, and the process of the ozone generating process is entered (S14).

In the ozone generating process, the control unit 101 operates the ozone generating device 61 after the circulating blower 52 is operated. The ozone generated by the ozone generating device 61 is mixed with the dry air and supplied into the drum 22. The object to be treated in the drum 22 is in contact with ozone, and the object to be treated is deodorized and sterilized. When the predetermined ozone generation time, for example, 10 minutes has elapsed, the control unit 101 stops the ozone generating device 61 and the circulating blower 52, and ends the ozone generating process.

Next, the control section 101 performs an ozonolysis process. The control section 101 first performs a humidification process (S15), and then performs a dehumidification process (S16). Further, in the case where the drum 22 is rotated in step S13, the rotation of the drum 22 is maintained even during the ozone decomposition.

Fig. 6 is a flow chart showing the control process during the humidification process.

In the humidification process, the control unit 101 operates the ultrasonic humidifying device 70 (S101). The mist generated by the ultrasonic humidifying device 70 is supplied into the outer tub 20 and the drum 22 through the mist supply pipe 71, and humidifies the inside of the drum 22. By humidification, the humidity in the drum 22 rises, for example, from 80% of the target to a value of about 100%. The predetermined humidification time, for example, when 8 minutes have elapsed (S102: YES), the control unit 101 stops the ultrasonic humidification device 70, ends the humidification process, and enters the process of the dehumidification process.

Returning to Fig. 5, the control unit 101 operates the circulating blower 52 during the dehumidification process. Wind is generated in the outer tub 20 and the drum 22, and the mist is discharged to the outer surface of the outer tub 20 a little by the exhaust portion 20b. Thereby, the humidity in the drum 22 is gradually lowered. When the predetermined dehumidification time elapses, for example, 2 minutes, the control unit 101 stops the circulation blower 52, and ends the dehumidification process.

During the ozonolysis process, the ozone in the drum 22 is decomposed. At this time, due to the humidification process, The inside of the drum 22 is humidified, so that decomposition of ozone is promoted. In the case where the rotary drum 22 is set, since the drum 22 rotates during the ozonolysis process, the inside of the drum 22 is all humidified, and the decomposition of ozone in the drum 22 is uniformly promoted. Thus, when the ozonolysis process is completed, the concentration of ozone in the drum 22 is lowered to the concentration at which the object to be processed can be taken out.

When the ozone decomposition process is completed, the control unit 101 determines whether or not the drum 22 is rotating (S17), and if it is not rotating (S17: NO), the operation of the air washing process is ended as it is. The control unit 101 unlocks the door 12 and makes it possible to take out the object to be processed. When the drum 22 is rotated (S17: YES), the control unit 101 stops the drum 22 (S18), and ends the operation of the air washing process.

Further, in the case where the drum 22 is rotated during the operation of the air washing process, the drum 22 may be continuously rotated or may be intermittently rotated. In the case where the drum 22 is intermittently rotated, the working time may be longer than the stopping time, and the stopping time may be longer than the working time. Further, the drum 22 may be intermittently rotated unidirectionally or may be rotated in a right-handed and left-handed manner.

As described above, according to the present embodiment, mist is supplied into the drum 22 during the ozone decomposition process, and the inside of the drum 22 is humidified. Thereby, decomposition of ozone remaining in the drum 22 is promoted. Therefore, the waiting time for taking out the object to be processed can be shortened. Further, since the power consumption required for humidification by the ultrasonic humidification device 70 can be made smaller than the power consumption required for heating by the heater, it is possible to suppress power consumption and promote the decomposition of residual ozone. Further, in the case where the object to be treated is not heat-resistant, the decomposition of residual ozone can be promoted.

Further, according to the above embodiment, after the mist is discharged to the outside of the outer tub 20 by the mist to reduce the humidity in the drum 22, the operation of the air washing process is ended. Thereby, it is possible to prevent the user from feeling uncomfortable by placing the hand in the drum 22 having a high humidity.

Further, according to the above embodiment, the drum 22 is rotated during the ozone decomposition process, and all of the drum 22 is humidified. Thereby, the decomposition of ozone in the drum 22 can be uniformly promoted.

Further, according to the above-described embodiment, when deodorization, sterilization, or the like of the object to be processed which is not desired to be stirred by the rotation of the drum 22 is performed, the operation of the air washing button 103d of the operation unit 103 can be set to no. Rotate the drum 22. Thereby, it is possible to prevent the occurrence of a defect such as damage to the object to be processed by the rotation of the drum 22.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and the like, and the embodiments of the present invention may be variously modified as described above.

In the above embodiment, the ultrasonic humidifier 70 is used to supply mist into the drum 22. On the other hand, in the present modification, the mist nozzle 90 is used to supply mist into the drum 22.

FIG. 7 is a side cross-sectional view showing the configuration of the drum type washing and drying machine 1 according to the present modification. In the present modification, the mist nozzle 90 is disposed in the rear upper portion of the outer tub 20, and the mist nozzle 90 is connected to the third valve 83 via the third duct 86. When the third valve 83 is opened, tap water is supplied to the mist nozzle 90. The mist nozzle 90 converts the supplied water into a mist, and sprays the converted mist into the outer tank 20 and the drum 22. The mist nozzle 90 corresponds to the mist generating portion of the present invention.

FIG. 8 is a flowchart showing a control process in the humidification process according to the modification. In the present modification, the control processing of the humidification process during the operation of the air washing process is different from that of the above embodiment. Hereinafter, the control process of the humidification process will be described with reference to Fig. 8 .

When entering the humidification process (S15), the control unit 101 opens the third valve 83 (S201). Spraying is performed from the mist nozzle 90 to the outer groove 20 and the drum 22. Thereby, the inside of the drum 22 is humidified.

When the predetermined spraying time, for example, 2 minutes has elapsed (S202: YES), the control unit 101 closes the third valve 83 (S203). Thereby, the spray of the mist is stopped. Since the supply amount of the mist per unit time by the mist nozzle 90 is larger than the supply amount of the mist per unit time of the ultrasonic humidification device 70 according to the above-described embodiment, the humidity in the drum 22 is set as the target in a short time. 80% rose to a value of around 100%. Therefore, the control unit 101 stops the spraying of the mist at a very early stage, and thereafter, the humidification time, for example, from the start of the humidification process until the passage of 10 minutes, waits as it is. When the humidification time has elapsed (S204: YES), the control section 101 ends the humidification process and adds the process of entering the dehumidification process.

According to the configuration of the present modification, the same operational effects as those of the above embodiment can be achieved.

In particular, in the present modification, the mist nozzle 90 for generating mist is used, and the electric power consumed is electric power for opening and closing the third valve 83 that supplies water to the mist nozzle 90. Therefore, power consumption can be suppressed as compared with the case where the ultrasonic humidifier 70 is operated.

In the first modification, the mist nozzle 90 is used to supply mist into the drum 22. On the other hand, in the present modification, it is possible to adopt a configuration in which water accumulated in the outer tub 20 is scattered by the rotation of the drum 22 to generate mist. In the present modification, the drum 22 corresponds to the mist generating portion of the present invention.

FIG. 9 is a side cross-sectional view showing the configuration of the drum type washing and drying machine 1 according to the present modification. In the present modification, as described above, since the ultrasonic humidifying device 70 and the mist nozzle 90 are not used, the water supply valve 80 becomes a two-way valve having the first valve 81 and the second valve 82.

FIG. 10 is a flowchart showing a control process in the air washing process according to the present modification. In the control processing of the present modification shown in FIG. 10, the processing of step S12 and the processing of step S17 executed in the control processing of the above-described embodiment shown in FIG. 5 are not executed. That is, when the drain trap water supply process is completed (S11), the control unit 101 rotates the drum 22 (S13), and proceeds to the process of the ozone generation process (S14). Further, when the dehumidification process constituting the ozonolysis process is completed (S16), the control unit 101 stops the drum 22 (S18).

FIG. 11 is a flowchart showing a control process in the humidification process according to the modification.

When the humidification process is entered (S15), the control unit 101 temporarily stops the rotating drum 22 (S301). Next, the control unit 101 opens the first valve 81 (S302). Thereby, tap water is supplied into the outer tank 20. The control unit 101 determines whether or not the water level in the outer tank 20 has reached the water level that can be scattered (S303). As shown in Fig. 9, the dispersible water level is set to a water level where the water surface is only in contact with the outer circumferential surface of the drum 22. When the water level in the outer tank 20 reaches the dispersible water level (S303: YES), the control unit 101 closes the first valve 81 (S304). Thereby, the water supply to the outer tank 20 is stopped.

The control unit 101 rotates the drum 22 again (S305). The outer edge of the dewatering hole 22b of the outer circumferential surface of the drum 22 is only protruded outward or the like in processing, and has only irregularities. Therefore, when the water surface is swept by the outer circumferential surface of the drum 22 by the rotary drum 22, the water scatters to generate mist. The inside of the drum 22 is humidified by the generated mist. As in the above-described embodiment, the humidity in the drum 22 is raised from a value of 80% of the target to a value of about 100%, for example, by humidification. The predetermined humidification time, for example, when 8 minutes have elapsed (S306: YES), the control unit 101 opens the drain valve 40 (S307), and ends the humidification process. Although the rotation of the drum 22 is continued, since the water level in the outer tank 20 is lowered, the outer circumferential surface of the drum 22 is not in contact with the water surface, so the generation of mist is stopped.

According to the configuration of the present modification, the rotation of the drum 22 can prevent the effect of the object to be treated which is not desired to be agitated, and the same operational effects as those of the above-described embodiment can be achieved.

In particular, in the present modification, since the mist is generated by the rotation of the drum 22, a dedicated device for generating mist such as the ultrasonic humidifier 70 is not required, and an increase in cost can be suppressed.

In the configuration of the above-described embodiment, the first modification, and the second modification, when deodorization, sterilization, or the like of the object to be heat-resistant is performed, in the humidification process, in addition to humidification, a pair may be added. The inside of the drum 22 is heated. Further, in this case, a switching button is provided in the operation unit 103. The button is used to set whether or not to heat the inside of the drum 22 by the switching button. When the user performs deodorization, sterilization, or the like of the object to be heat-resistant, the inside of the drum 22 is heated.

FIG. 12 is a flowchart of a control process in the humidification process in the case where the structure for heating the inside of the drum 22 is added to the configuration of the above embodiment. In the control processing shown in FIG. 12, the processing of steps S111 to S114 is added to the control processing shown in FIG.

In the present modification, the control unit 101 determines whether or not to heat the inside of the drum 22 after the ultrasonic humidifier 70 is operated (S111). When it is set to heat the inside of the drum 22 (S111: Yes), the control part 101 operates the heater 53 and the circulation blower 52 (S112). The inside of the drum 22 is heated by the air supplied to the drum 22 by the heater 53. Thereby, decomposition of ozone remaining in the drum 22 is promoted not only by humidification but also by heating. Therefore, the decomposition of ozone is greatly promoted.

When the predetermined humidification/heating time has elapsed (S113: YES), the control unit 101 stops the heater 53 and the circulation blower 52 (S114). Further, the control unit 101 stops the ultrasonic humidifier 70 (S103), and ends the humidification process. By greatly promoting the decomposition of ozone by humidification and heating, the concentration of ozone in the drum 22 is lowered early as compared with the case of only humidification. Therefore, the humidification/heating time becomes a time shorter than the humidification time.

FIG. 13 is a flowchart of a control process in the humidification process in the case where the structure for heating the inside of the drum 22 is added to the configuration of the above-described first modification. In the control processing shown in FIG. 13, the processing of steps S211 to S216 is added to the control processing shown in FIG.

In the present modification, after the third valve 83 is opened, the control unit 101 determines whether or not heating in the drum 22 is set (S211). When it is set to heat the inside of the drum 22 (S211: Yes), the control part 101 operates the heater 53 and the circulation blower 52 (S212). By heating the inside of the drum 22, the decomposition of ozone remaining in the drum 22 is greatly promoted.

When the spray time has elapsed (S213: YES), the control unit 101 closes the third valve 83 (S214). Further, when the humidification/heating time has elapsed (S215: YES), the control unit 101 stops the heater 53 and the circulation blower 52 (S216), and ends the humidification process.

FIG. 14 is a flowchart of a control process in the humidification process in a case where a structure for heating the inside of the drum 22 is added to the configuration of the second modification. In the control processing shown in FIG. 14, the processing of steps S311 to S314 is added to the control processing shown in FIG.

In the present modification, after the drum 22 is rotated again, the control unit 101 determines whether or not heating in the drum 22 is set (S311). When it is set to heat the inside of the drum 22 (S311: Yes), The control unit 101 operates the heater 53 and the circulating blower 52 (S312). By heating the inside of the drum 22, the decomposition of ozone remaining in the drum 22 is greatly promoted. When the humidification/heating time has elapsed (S313: YES), the control unit 101 stops the heater 53 and the circulation blower 52 (S314). Further, the control unit 101 opens the drain valve 40 (S307), and ends the humidification process.

According to the configuration of the above-described modified example, since the decomposition of ozone is greatly promoted as compared with the configuration in which only the humidification in the drum 22 is performed, the waiting time for taking out the object to be processed can be shortened. Further, since the take-out waiting time can be shortened as compared with the configuration in which the heating in the drum 22 is performed, the power consumption as the entire ozone decomposition process can be suppressed as compared with the structure in which only heating can be performed.

In addition, in the case of the deodorization and sterilization of the object to be treated which is not heat-resistant, the operation of the operation unit 103 can be set so that the inside of the drum 22 is not heated. Therefore, it is possible to prevent damage to the object to be treated which is not heat-resistant by heating.

Further, in the modified example shown in FIGS. 12 to 14, the heater 53 corresponds to the heating unit of the present invention, and the operation unit 103 corresponds to the heating selection operation unit of the present invention.

In the above embodiment, the ozone generation process and the ozone decomposition process are performed in the operation of the air washing process provided separately from the washing operation, the washing and drying operation, and the drying operation. However, the ozone generation process and the ozone decomposition process may also be performed after the drying process in the washing and drying operation and the drying operation.

Further, in the above embodiment, the drum 22 is rotated about the tilt axis that is inclined with respect to the horizontal direction. However, the drum type washing and drying machine 1 may be configured such that the drum 22 rotates around the horizontal axis.

Further, in the above-described embodiment, the drum type washing and drying machine having the functions of deodorizing and sterilizing the laundry by ozone is exemplified, but the present invention is not limited to the drum type washing and drying machine, and can be applied to A drum type washing machine having a function of deodorizing and sterilizing clothes by ozone, a fully automatic washing machine, a fully automatic laundry dryer, a clothes dryer, and the like. Further, the present invention can be applied to a shoe washing machine having a function of deodorizing and sterilizing a shoe by ozone, and a suit dry cleaning machine such as deodorizing and sterilizing a suit by ozone; Various ozone treatment apparatuses such as deodorization and sterilization of the object to be treated are performed by ozone.

Further, the embodiments of the present invention can be variously modified as appropriate within the scope of the technical idea described in the claims.

Description of the reference numerals

12: door; 20: outer groove (accommodating portion); 20b exhaust portion (hole portion); 22: drum (accommodating portion, Fog generating unit); 52: circulating blower (wind generating unit); 53: heater (heating unit); 61: ozone generating device (ozone generating unit); 70: ultrasonic humidifying device (fog generating unit); 90: mist nozzle (Mist generation unit); 101: Control unit; 103: Operation unit (rotation selection operation unit, heating selection operation unit).

Claims

An ozone treatment device characterized by comprising:

The accommodating portion accommodates the object to be processed, and is kept in a sealed state by the closing of the door;

An ozone generating unit that generates ozone supplied to the storage portion;

a mist generating portion that generates a mist for humidifying the storage portion;

The control unit performs an ozone generation process for supplying ozone to the storage portion and an ozone decomposition process for decomposing ozone remaining in the storage portion after the ozone generation process,

The control unit operates the mist generating unit during the ozone decomposition process after the ozone generating unit is operated in the ozone generating process.
The ozone treatment apparatus according to claim 1, further comprising:

a wind generating portion that generates wind in the storage portion;

The hole portion is provided in the accommodating portion, and the mist can be discharged to the outside by the flow of the wind generated in the accommodating portion.

The control unit operates the wind generating unit after stopping the mist generating unit during the ozone decomposition.
The ozone treatment apparatus according to claim 1 or 2, wherein

The storage unit has:

Outer slot;

The drum is disposed in the outer tank and is rotatable about a tilt axis that is inclined with respect to a horizontal axis or a horizontal direction.
The ozone treatment apparatus according to claim 3, wherein

The control unit rotates the drum when the storage portion is humidified by the mist from the mist generating portion.
The ozone treatment apparatus according to claim 4, further comprising:

The rotation selection operation unit selects whether or not to accept the operation of rotating the drum.
The ozone treatment apparatus according to any one of claims 1 to 5, further comprising:

Heating the portion to heat the storage portion,

The control unit causes the mist generating portion to work together with the heating portion during the ozone decomposition process.
The ozone treatment apparatus according to claim 6, further comprising:

The heating selection operation unit accepts an operation of selecting whether or not to heat the housing portion.