KR101435809B1 - Laundry treating machine - Google Patents

Abstract

The present invention relates to a clothes processing apparatus for supplying steam and hot air to clothes stored in a storage room to remove odors, wrinkles, or moisture remaining in the clothes.

According to the clothes processing apparatus of the present invention, it is possible to provide a clothes processing apparatus capable of controlling the drying process in correspondence to the degree of drying of clothes or a wall surface of a compartment accommodated by electrode portions provided in a compartment in which clothes are stored will be.

Drying, Steam, Hot Air, Garment Processing Device

Description

[0001] LAUNDRY TREATING MACHINE [0002]

The present invention relates to a clothes processing apparatus for supplying steam and hot air to clothes stored in a storage chamber to remove odors, wrinkles, or moisture remaining in the clothes.

More particularly, the present invention relates to a clothes processing apparatus capable of controlling the drying process in correspondence to the degree of drying of clothes or a wall surface of a storage chamber accommodated by electrode portions provided in a storage chamber.

The clothes processing apparatus refers to a device that removes odors, wrinkles, or moisture remaining in clothes by supplying steam and hot air to clothes accommodated in a storage room inside a cabinet forming an outer shape.

If the same garment is worn more than once, the smell, the wrinkle, or the moisture will remain in the garment. The smell remaining on the clothes, etc., is displeasing to the user who wants to wear the same clothes again. In order to eliminate such a problem, the user carries out an unnecessary washing process to shorten the life of the clothes and increase the cost required for maintenance of the clothes.

In addition, there is a problem that even if clothes after drying are dried, wrinkles may remain, and such clothes can not be worn immediately. Therefore, the user must carry out a separate ironing operation or the like.

In order to solve such a problem, a clothes processing apparatus can be used to remove odors, wrinkles, or moisture remaining in clothes.

The clothes processing apparatus can use hot air or air to spray the clothes on the clothes and dry the clothes containing moisture by the sprayed steam in order to remove the smell, wrinkle or moisture of the housed clothes.

By simply exposing the clothes to wind or hot air, it is possible to remove odors, wrinkles or moisture, but steam can be used to maximize the effect.

When steam is sprayed on clothes stored in the clothes processing apparatus, fine water particles combine with the odor particles remaining deeply in the fiber texture, and the water particles combined with the odor particles are discharged separately from the clothes in the drying process. In this way, the odor remaining in the garment is removed.

When steam is supplied to the clothes stored in the clothes processing apparatus, there is an effect of alleviating wrinkles remaining on the clothes. Wet garments supplied with steam will mitigate or eliminate wrinkles during the drying process.

Through such a process, it is possible to remove the odor, wrinkle, or moisture remaining in the clothes, and the user of the clothes can wear the clothes in a more comfortable condition.

1 is a perspective view of a conventional garment processing apparatus 100 '. The storage room 10 'in which the clothes of the clothing processing apparatus 100' are stored is generally formed in a cabinet shape in which a door 60 'opens and closes and a storage room 10' for storing clothes is formed . A storage room 10 'for storing clothing is formed in an upper portion of the cabinet, a steam generating device (not shown) for generating steam supplied to the storage room 10' (Not shown) for supplying hot air, and the like.

The steam generator provided in the electric field chamber 20 'injects steam through a steam injection unit 50' provided in the storage chamber 10 '.

The steam supply device for supplying steam to the storage room 10 'and the hot air supply device for supplying hot air are controlled by a control unit (not shown) of the clothes processing apparatus. The control unit controls the supply of steam or hot air to perform a process selected by the user.

The steam supplied to remove any remaining odor or wrinkles in the garment is removed during the drying process.

Even if the same amount of steam is supplied, there must be a difference in the temperature, supply time or air volume of the hot air required for drying the complete garment if there is a difference in drying degree.

If the garment is not dried, the user can perform the drying operation of the same garment again to wear the garment, and unnecessarily excessive drying process may damage the textile structure of the garment, which is undesirable.

Therefore, it is necessary for the control unit of the clothes processing apparatus to actively perform the drying process in response to the degree of drying of the received clothes, instead of manually performing the drying process based on the inputted information.

The present invention is characterized in that the drying degree of the wall surface of the garment or the storage chamber accommodated in the storage chamber is measured to determine the operating condition of the hot air supply device provided in the electric room or to determine the direction of the hot air supplied by the hot air supply device The present invention has been made to solve the above problems.

According to an aspect of the present invention, there is provided a cabinet including a cabinet in which clothes are accommodated and in which an inner wall surface is made of an insulating material, a hot air supply device for supplying hot air to the storage chamber, Or more; And a control unit electrically connected to the electrode unit and controlling the hot air supply device.

In this case, it is preferable that the electrode portions are in contact with different parts of the received clothes.

Preferably, the control unit determines an operation condition of the hot air supply device in accordance with an impedance value of the garment contacting the electrode unit.

The apparatus may further include a temperature sensor connected to the control unit, the temperature sensor measuring the temperature of the air in the compartment.

The operating condition of the hot air supply device can be determined in accordance with the temperature change measured by the temperature sensor.

Also, the controller may determine an operation condition of the hot air supply device corresponding to an impedance value of an inner wall surface contacting the electrode unit.

Here, the electrode unit may be mounted at a different height.

The apparatus may further include at least one plate type flapper mounted on a discharge port side of the hot air supply room for supplying hot air from the hot air supply device and capable of rotating, and the control unit may adjust a rotation angle of the flapper.

Preferably, the control unit determines the rotation angle of the pluffer corresponding to the impedance value of the garment contacting the electrode unit.

The operating condition of the hot air supply device may include at least one of a hot air supply time, a temperature, and an air flow rate.

The steam generator may further include a steam generator controlled by the controller to generate steam supplied to the storage chamber.

Preferably, the control unit controls the steam generator in accordance with the impedance value of the garment or the inner wall facing the electrode unit.

According to the clothes processing apparatus of the present invention, in order to remove odors, wrinkles, and moisture remaining in the clothes stored, steam is sprayed on the clothes, hot air is blown to dry the clothes containing moisture by the sprayed steam The smell, the wrinkles and the moisture remaining in the housed clothes can be removed by supplying or blowing.

Further, according to the clothes processing apparatus according to the present invention, the stored clothes or the wall surface of the storage chamber are measured for drying degree, and the hot air supply device provided in the electric room is controlled, so that the stored clothes can be efficiently dried.

Further, the clothes processing apparatus according to the present invention can concentrically supply hot air to a part of the clothes stored or the wall surface of the storage room with a low degree of drying, and can uniformly dry.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

2 is a perspective view of one embodiment of a garment processing apparatus 100 according to the present invention. A storage room 10 for storing clothing is formed in an upper portion of the cabinet and a steam generating device for generating steam supplied to the storage room and a hot air supply device for supplying hot air to the storage room The electric field chamber 20 is located.

The steam generator provided in the electric field chamber 20 injects steam through the steam injection unit 50 provided in the storage chamber 10.

A steam supply device (not shown) for supplying steam to the storage room 10 and a hot air supply device (not shown) for supplying hot air are controlled by a control unit (not shown) of the clothes processing apparatus. The controller controls the supply of steam or hot air by controlling the steam generator and the hot air supply device, respectively, in accordance with a process selected by the user.

In the clothes processing apparatus according to the present invention, a plurality of first electrode portions 12a are provided on the inner wall surface of the housing chamber 10 in which clothes are stored. The first electrode unit 12a is electrically connected to a control unit of the clothes processing apparatus. The control unit is electrically connected to the first electrode unit 12a.

In the embodiment shown in FIG. 2, the first electrode portion 12a is mounted at a position corresponding to the back surface of the door 60 and the inner wall surface facing the rear surface. The reason for attaching the first electrode portion 12a to the opposing inner wall surface is to contact both ends of the clothes stored in the storage chamber 10. [

In the embodiment shown in Fig. 2, the first electrode portion 12a is used to measure the impedance of the garment, in contact with the shoulder portion of the received garment.

The reason for measuring the impedance of the clothes stored in the storage room 10 is to measure the electrical conductivity of the stored clothes. That is, the electrical conductivity changes depending on the degree of drying of the clothes. Therefore, by measuring the electrical conductivity, it is possible to judge the degree of drying of the clothes, that is, the degree of drying of the clothes.

Measurement of the impedance of an object in contact with the electrode portion 12a by providing the electrode portion 12a may be said to measure the electrical conductivity corresponding to the impedance and the degree of dryness with respect to the electrical conductivity.

Since the electrode unit 12a is electrically connected to the control unit, the impedance can be measured by applying a current or voltage to the electrode unit 12a.

The AC value changes with time, so the rms value of current and voltage is used. Therefore, when the effective value of the AC voltage is Ve, the impedance Z of the clothes contacted to the electrode portion 12a is Z = Ve / Ie.

Accordingly, the control unit may calculate the impedance by applying a current or a voltage and then measuring the voltage or the current.

Impedance indicates the degree of difficulty of current flow in an alternating current circuit. The units are expressed in units of ohms (Ω) in SI units, usually denoted by symbol Z. That is, a composite resistance of an AC circuit in which a resistor, a coil, and a capacitor are connected in series is called an impedance.

The reason why the degree of drying of the clothes can be judged by measuring the impedance of the stored clothes is that the impedance is low because the electric current flows very well because the drying degree is low, that is, the clothes wet with water are high in electric conductivity, The impedance will be measured as a large value.

Taken together, if the degree of drying of the stored clothes is low, it means that the moisture content of the clothes is large, so the conductivity will increase and the impedance will be measured low.

On the other hand, if the degree of drying of the stored clothes is high, it means that the moisture content of the clothes is small, so the conductivity will decrease and the impedance will be measured to be high.

Further, the electrode portion provided on the inner wall surface of the garment processing apparatus housing chamber 10 according to the present invention can be used for measuring the degree of the degree of the inner wall surface of the housing chamber 10. The housing chamber 10 is generally made of a non-conductive material such as plastic.

Although it is preferable that the steam supplied from the steam generator installed in the electric vehicle 20 is removed through a drying process, condensation water of steam may remain on the wall surface of the compartment 10 after the drying process is completed .

In the embodiment shown in Fig. 2, the second electrode portion 12b can be used for measuring the impedance of the wall surface in the accommodating chamber 10. Fig. When the impedance of the wall surface of the storage chamber 10 is measured, the degree of drying of the wall surface of the storage chamber 10 can be determined, so that the operation of the hot air supply device The condition can be controlled.

The inner wall surface of the storage chamber has a property of rising from the lower portion to the upper portion due to the nature of high temperature steam. Therefore, the drying degree of the inner wall surface of the storage chamber 10 may differ from the upper portion to the lower portion. Therefore, it is preferable to measure the degree of drying of the inner wall surface by providing the second electrode portion 12b at various heights.

The hot air supply device and the steam supply device provided in the electric vehicle room 20 are controlled by a control unit of the clothes processing apparatus as described above.

The electrode unit 12 and the thermometer 14 provided on the wall surface of the storage chamber 10 correspond to the degree of drying of the clothes or the inner wall surface stored in the storage chamber 10, 10 to control the hot air supply device for supplying hot air.

In addition, the operating condition of the hot air supply device may include the supply time of the hot air supplied from the hot air supply device, the temperature, or the air flow rate.

Therefore, depending on the degree of drying of the stored clothes or the inner wall surface determined using the first electrode portion 12a and the second electrode portion 12b, it is determined whether or not hot air should be further supplied, You can decide if you need to supply in air volume.

The clothes processing apparatus according to the present invention may include a temperature sensor 14 capable of measuring the temperature inside the storage chamber on the inner wall surface of the storage chamber 10. [ The temperature sensor 14 may be used as information for controlling the hot air supply device by measuring the temperature inside the storage room 10. [

When the temperature measured by the temperature sensor 14 rises above a predetermined temperature, hot air supplied from the hot air supply device to the storage room 10 sufficiently dried the clothes stored in the storage room 10 Means that.

If the clothes stored in the storage compartment 10 are not dried to the required degree, the temperature inside the compartment 10 will not rise above a predetermined temperature, Because it will be used to evaporate moisture.

The determination of the degree of drying by the temperature measured by the temperature sensor 14 may be used as an auxiliary determination means for determining the degree of drying by the electrode unit 12.

The hot air supply device and the steam supply device provided in the electric front part 20 are controlled by a control unit of the clothes processing apparatus as described above.

The electrode unit 12 and the thermometer 14 provided on the wall surface of the storage chamber 10 correspond to the degree of drying of the clothes or the inner wall surface stored in the storage chamber 10, 10 to control the hot air supply device for supplying hot air.

3 is a structural view of the inside of the electric field chamber 20 of one embodiment of the clothes processing apparatus according to the present invention.

The electric generator room 20 of the clothes processing apparatus 100 is provided with a steam generator 25 for generating steam to be supplied into a storage room for storing clothes and a hot air supply device for supplying hot air for drying the housed clothes .

The hot air supply device can be classified into the case of using a heat pump and the case of using an electric heater according to a method of heating the dehumidified air.

A condenser 23a for condensing the moisture of the humid air sucked through the suction duct 21 in the compartment 23 and separating the condensed water from the compartment 23a when the heat pump or the electric heater is used, And a heating section 23b for heating the heating section 23b.

In this case, there is a difference in whether the heating unit 23b for heating the dehumidified air is a heat pump heat exchanger for heating the air through the condensation of the refrigerant or an electric heater.

Even in the case of using a heat pump for dehumidification and heating of the humidifier, a separate electrothermal heater can be added for sufficient air heating.

In the embodiment according to the present invention shown in Fig. 3, a heat pump system is used as a hot air supply apparatus for supplying hot air. The hot air supply device is constituted by a suction duct 21 for sucking air in the humid storage chamber 10, a compressor 22 for compressing the refrigerant, a condenser 23a for performing dehumidification and heating, and a heating unit 23b And a blowing duct (24) for blowing the dehumidified and heated air to the housing chamber. The ventilation duct (24) has a duct and a fan integrally formed.

Therefore, the air sucked in the suction duct 21 is dehumidified by the condensed portion 23a of the heat exchanger 23, heated by the heating portion 23b, and then supplied to the storage chamber through the blowing duct 24 The drying process in the housing chamber 10 is performed again, and the suction operation is repeatedly performed through the suction duct 21 again. By repeating this process, the clothes stored in the storage chamber 10 are dried.

The positions of the suction duct 21 and the blast duct 24 in the storage chamber 10 can be determined in consideration of the position of the steam generator 25 and the like. In the embodiment shown in FIG. 3, the suction duct 21 and the blowing duct 24 are installed at the front and rear sides of the lower surface of the compartment 10. Therefore, the air for drying clothes stored in the storage room 10 circulates through a large oval trajectory.

The heat exchanger (23) constituting the hot air supply device of the clothes processing apparatus according to the present invention dehumidifies the humid air circulated in the compartment using the refrigerant supplied from the compressor (22) during the evaporation process of the refrigerant, The dehumidified air is again heated through the condensation process of the condenser.

It is necessary to compress the refrigerant between the evaporation process and the condensation process of the refrigerant. Compressing of the refrigerant is performed in the compressor (22) provided in the electric field chamber (20).

The electric field chamber 20 shown in FIG. 3 is provided with a drain portion 70. The condensed water condensed in the heat exchanger 23 is collected in a water collection container 29 located under the heat exchanger 23 and the water collected in the water collection container 29 is carried back to the drainage part 70 .

Of course, the drainage unit 70 may be an external sewage piping that is not removable. However, since there is a limitation that a garment disposal apparatus should be installed in a place where sewage or the like is provided, the case where the drainage unit 70 is configured as a removable tub is explained.

The user of the garment disposal apparatus can selectively drain the drainage unit 70 from the electric room 20 in consideration of the capacity of the drainage unit 70 and discharge the stored wastewater therein. The pump 27 or the like may be used to transfer the wastewater from the water collection tank 29 to the drainage unit 70.

If the drainage section 70 can be disposed below the heat exchanger 23, the water collection section 29 is not required. However, in order to construct the drainage section 70 to be removable from the electric chamber, .

Since it is advantageous for the position of the drainage portion 70 to be located above the electric field chamber 20 in order for the user to easily attach and detach the drainage portion 70 from the electric field chamber 20, To compensate for the difference in height between the water collecting container 29 located at the lower part of the water tank 23 and the drainage part 70.

The size of the water collecting receptacle may be smaller than the size of the water discharging part 70 because the water is transported from the water receptacle 29 to the water discharging part 70 by using a pump or the like.

The steam supplied to the clothes stored in the storage chamber 10 is heated by the steam generator 25 provided in the electric room 20 by heating the water supplied from the water source 90 provided in the electric room And supplies the generated steam to the storage chamber 10. The steam is supplied to the storage chamber 10 via the steam generator.

The water supply source 90 is provided in the form of a receptacle capable of being detached from the front part like the drain part 70 shown in FIG. The amount of water required to generate steam is not much, and the installation is possible even in a place where there is no tap water. Therefore, a case where the detachable water supply source 90 is used will be described.

Of course, when the water supply facility is located at a short distance, the water supply source 90 may also be directly connected to the water supply.

The water supply source 90 supplies water to the steam generator 25 and the steam generator 25 injects steam through the steam injection unit 50.

In the present embodiment, the steam generating device 25 generates steam by heating a predetermined amount of water contained in a water tank of a predetermined size with a built-in heater (not shown).

However, in the present invention, any device capable of generating steam can be used as a steam generator. For example, it is also possible to use a method in which a heater is directly provided around the water supply hose through which water passes, that is, a method in which water is heated without containing water in a predetermined space.

The steam generator 25 injects steam into the storage room 50 through which the clothes are stored through the steam injection unit 50.

The steam injection unit is connected to the steam generator 25 and the drainage unit 70. The reason why the steam generator is connected to the drainage unit 70 is to recover steam condensed water in the process of injecting steam in the steam injection unit 50.

Further, when the condensed water is left, the space in the steam injection unit 50 is reduced, so that the supplied steam can be easily injected. The high-temperature condensed water also has an effect of keeping the supplied steam warm.

Therefore, it is preferable that the condensed water of the steam condensed in the steam injection unit remains in the steam injection unit for a certain period of time.

Therefore, it is preferable to provide a valve 80 between the condensed water discharge port and the drainage part 70 in order to leave the condensed water inside the steam injection unit 50. The condensed water produced by the valve can be prevented from draining through the condensate outlet 53 immediately upon its production. The valve 80 is preferably an electronic valve controlled by a control unit (not shown) of the clothes processing apparatus.

In this embodiment, the condensed water condensed in the steam injection unit 50 can be passed through the water collection tube 29 without draining to the drainage unit 70. If the condensed water is temporarily stored in the water collecting container 29 and then drained to the pump 29, it can be discharged together with the condensed water condensed in the heat exchanger 23, which is efficient.

In the present embodiment, the water drainage unit 70 is provided as a removable tub, but it may be drained directly from the water storage tank where the sewage is installed.

Therefore, it is preferable that the piping provided for draining the condensed water in the collection container 29 is selectively connected to the detachable drainage unit 70 or the sewerage (not shown).

3, the water drainage unit 70 and the water supply source 90 are installed in a drawer (not shown) that moves back and forth outside the electric field chamber 20, And may be provided in the electric field chamber 20.

Fig. 4 shows another embodiment of the clothes processing apparatus according to the present invention.

The present embodiment further includes at least one plate type flapper 16 mounted on the discharge port side of the hot air storage room 10 supplied from the hot air supply device and rotatable.

The flapper 16 is mounted on the discharge port side of the hot air supplied from the hot air supply device, in this embodiment, on the side of the blowing duct (24 in FIG. 3). The flares 16 are mounted on the lower surface of the storage chamber 10 in the form of a long plate and are rotated. The hot air supplied from the hot air supply device is moved upward from the lower portion of the housing chamber so that even if the flares 16 are provided in the lower portion of the housing chamber 10, Can be controlled.

The reason why the flapper 16 is rotated under the control of the control unit is that a large number of clothes stored in the storage compartment 10 or hot air is concentrated on the inner wall surface To supply.

When the degree of drying of the clothes or the inner wall surface stored in the storage compartment 10 is compared and the degree of drying of the clothes stored in a specific direction or the drying degree of the inner wall surface is lower than the drying degree of the clothes stored in the storage room 10, The rotational angle of the plumper 16 is changed to intensively supply the hot air supplied from the front portion 20 in the direction in which the clothes with a low degree of drying are accommodated to uniformly dry the stored clothes .

Therefore, the flapper 16 is rotated so that clothes stored in the compartment 10 and hot air can be supplied to the inner surface of the garment having a low degree of dryness or the inner wall surface of the inner wall surface, thereby maximizing the efficiency of the drying process have.

The control unit of the clothes processing apparatus according to the present invention may be configured such that a current or voltage is applied to the pair of electrode units to determine the degree of drying of the clothes or the inner wall surface housed in the compartment, Or the current can be calculated based on the impedance of the garment or the inner wall surface. Therefore, the controller can collect information on the degree of drying of the inner wall surface between the pair of electrode portions or between the pair of electrode portions, respectively have.

Here, the pair of electrode portions can be selected by forming a pair of two electrodes in a plurality of electrode portions. Therefore, it is possible to determine the degree of drying of the wall surface of the clothes or the storage chamber accommodated by measuring the impedance of the pair of electrode portions corresponding to various combinations.

By this method, it is possible to determine the overall degree of drying of most of the clothes and the inner wall surface housed in the compartment 10, and to efficiently use the hot air supplied from the hot air supply device.

The indirect information of the stored clothes drying degree measured by the electrode unit can be used not only in the drying process of clothes stored in the storage room of the clothes processing apparatus but also in the supply step of steam.

In order to remove the odor or wrinkles remaining in the housed clothes, the clothes processing apparatus supplies the clothes with steam, but may also be used to control an appropriate amount of steam to be supplied to the housed clothes.

That is, it is also possible to judge that the appropriate amount of steam is supplied by the information measured by the electrode portion in contact with the clothes. That is, the electric conductivity or the impedance of the clothes supplied with steam is measured, and if the required amount of steam is supplied, the supply of steam may be stopped.

Since the steam supply device for supplying steam to the storage room or the hot air supply device for dehumidifying and heating the air inside the storage room is controlled by the control unit, Information on the degree of drying can be utilized in various ways.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. . It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

1 is a perspective view of a general garment processing apparatus.

2 is a perspective view of one embodiment of a garment processing apparatus according to the present invention.

3 is a configuration diagram of the interior of the electric room of one embodiment of the clothes processing apparatus according to the present invention.

Fig. 4 shows another embodiment of the clothes processing apparatus according to the present invention.

DESCRIPTION OF REFERENCE NUMERALS

10: storage chamber 12a: first electrode portion

12b: second electrode part 14: temperature sensor

16: Flipper 20: Electric field room

22: compressor 23: heat exchanger

24: air duct 25: steam generator

50: steam injection unit 60: door

70: Drain portion 80: Valve

90: Water source

Claims (13)

A cabinet in which clothes are accommodated and in which a storage room in which an inner wall surface is made of a nonconductive material is formed; A hot air supply device for supplying hot air to the storage chamber; At least two electrode units mounted on a wall surface of the storage chamber; And A control unit electrically connected to the electrode unit and controlling the hot air supply device; Wherein the electrode portion is in contact with different portions of the stored clothes. delete The method according to claim 1, Wherein the control unit determines an operation condition of the hot air supply device in accordance with an impedance value of the garment contacting the electrode unit. 3. The method according to claim 1 or 3, Further comprising: a temperature sensor connected to the control unit, the temperature sensor measuring the temperature of air in the compartment, and being mounted in the compartment. 5. The method of claim 4, Wherein the operating condition of the hot air supply device is determined in accordance with a change in temperature measured by the temperature sensor. The method according to claim 1, Wherein the control unit determines an operation condition of the hot air supply device in accordance with an impedance value of an inner wall surface contacting the electrode unit. The method according to claim 6, Wherein the electrode unit is mounted at a different height. The method according to claim 1, Further comprising at least one plate type flapper mounted on a discharge port side of the hot air supply room in the hot air supply device and rotatable, Wherein the control unit is capable of adjusting a rotation angle of the flapper. 9. The method of claim 8, Wherein the control unit determines the rotation angle of the platen in accordance with the impedance value of the garment contacting the electrode unit. 9. The method of claim 8, Wherein the control unit determines the rotation angle of the pluffer in accordance with an impedance value of an inner wall surface contacting the electrode unit. The method according to any one of claims 3, 5 and 6, Wherein the operating condition of the hot air supply device includes at least one of a hot air supply time, a temperature, and an air flow rate. The method according to claim 1, Further comprising: a steam generating device controlled by the controller to generate steam supplied to the storage room. 13. The method of claim 12, Wherein the control unit controls the steam generator in response to an impedance value of the garment or the inner wall surface contacting the electrode unit.

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