KR20070111799A - Refrigerator including a humidifier - Google Patents

Abstract

A refrigerator equipping with a humidifier is provided to convert dry air of a refrigerating compartment to relatively wet air by using drinking water and supply the wet air to an auxiliary storing chamber, thereby keeping food in the auxiliary storing chamber fresh and safe for an elongated term. A refrigerator including a humidifier includes an air suction fan(20) for inhaling air at a side of a main storing chamber(211) of a main body(10), and a humidifying tank(40) storing water supplied from the outside for discharging the introduced air to an auxiliary storing chamber(213) of the main body via the stored water. A humidifying duct(30) is connected to an outlet part of the air suction fan for guiding the inhaled air to the humidifying tank.

Description

Refrigerator with humidifier {REFRIGERATOR INCLUDING A HUMIDIFIER}

1 is a cross-sectional view of a refrigerator having a conventional humidifier.

2 is an enlarged view of a part of the refrigerator of FIG. 1;

3 is an enlarged view illustrating main parts of a conventional refrigerator,

4 is a cross-sectional view of a refrigerator according to the present invention,

5 is a perspective view of the refrigerator of FIG. 4,

6 is an enlarged perspective view of a main portion of the refrigerator of FIG. 4;

7 is a control block diagram for the humidification of the refrigerator according to the present invention,

8 is an exemplary diagram for describing a control method according to the control block diagram of FIG. 7.

Explanation of symbols on the main parts of the drawings

1: refrigerator 10: body

13: internal injury 15: trauma

19: defrost water discharge pipe 20: air suction fan

23: air suction fan drive unit 30: humidification duct

31: humidification duct body 31a: inlet opening

31b: exhaust opening 33: fan cover

40: humidification tank 41: humidification tank body

43: separation plate 43a: water passage

45: humidification tank air inlet 47: water supply pipe connection

49: air humidifier tank 50: water supply device

53: water supply pipe 55: water filter

57: water supply control valve 60: humidity sensor

70: water level sensor 80: control unit

90: refrigeration chamber cooling duct 95: storage container

The present invention relates to a refrigerator, and more particularly, to a refrigerator provided with a humidifier.

Refrigerator is a device for the purpose of low temperature storage of food as the cycle of the compression, condensation, expansion, evaporation of the refrigerant is repeated. The refrigerator includes a main body including a refrigerating compartment having a storage compartment for storing food and an auxiliary storage compartment, a door for opening and closing an opening formed in the storage compartment of the main body, and a cooling device provided in the main body to cool the storage compartment. The cooling apparatus includes a compressor for compressing the refrigerant, an evaporator for cooling the ambient air while the refrigerant evaporates to create cold air, and a blowing fan for blowing cold air formed in the evaporator into the storage compartment. Here, when the refrigerant of the evaporator absorbs the heat of the ambient air while evaporating, the moisture contained in the ambient air is cooled to freeze on the surface of the evaporator to form a sex.

Therefore, since the cold air in the storage compartment forcedly circulated by the blower fan loses moisture while passing through the evaporator, the humidity is lowered, the food in the storage chamber quickly sieves due to the dry cold air. Therefore, in recent years, refrigerators equipped with various types of humidifiers have been released to prevent such a phenomenon.

1 is a cross-sectional view of a refrigerator having a conventional humidifying apparatus, FIG. 2 is an enlarged view of a main part of the refrigerator of FIG. 1, and FIG. 3 is a cross-sectional view of a conventional humidifying apparatus.

1 and 2, the conventional refrigerator 200 includes a blower fan circulating cold air, a defrost water 245 removed from the evaporator 250, and a defrost water 245 downward. A defrosting water receiver 243 having a hollow shape is collected. The defrost water 245 collected in the defrost water receiver 243 is discharged to the defrost water storage unit 249 through the defrost water discharge pipe 247. As shown in FIG. 2, the defrost water discharge pipe 247 is installed to protrude upward of the defrost water receiver 243, so that the defrost water 245 is accumulated in the defrost water receiver 243.

Therefore, the defrosted water 245 is naturally evaporated, or the air introduced into the cold air inlet hole 223 of the refrigerating chamber cold air duct 220 by the blowing fan 230 is the defrost water (243) After the forced evaporation 245 is discharged to the cold air discharge hole 225, the refrigerating chamber 210 is humidified.

Here, the defrost water 245 is formed by melting the frost formed on the surface of the evaporator 250 by a heater or a gas of high temperature and high pressure. The evaporator 250 is chemically treated on the surface of the evaporator 250, and the defrost water 245 is not suitable for food and drinking. Therefore, the conventional refrigerator 200 using the defrost water 245 as the humidifying water cannot store the stored food in a safe state for the human body.

In addition, since the blowing fan 230 is intended to circulate the cold air of the storage compartment, the refrigeration chamber 210 cannot be humidified when the blowing fan 230 is not driven by defrosting the evaporator or by other purposes.

Another humidifier 205 of the conventional refrigerator 200, as shown in Figure 3, by using the ultrasonic vibrator 270 instead of the forced evaporation method by the blowing fan 230 of FIGS. The refrigeration chamber 210 was humidified with the defrost water 245 by atomizing the constant 245. In this case, there is an advantage in that a large amount of water vapor can be supplied to the storage compartment, but the air containing a large amount of water vapor does not go far from the discharge part due to its weight, and water vapor is continuously supplied only in a predetermined range so that the stored food is easily rubbed and stored for a long time. There is a disadvantage in that water is accumulated in the storage container and should be drained.

In addition, the refrigerator 200 provided with the conventional humidifier 205 also has a problem of humidifying the defrost water 245 which is inappropriate for food and drinking.

Therefore, there is a need to develop a humidifying device that can store food for a long time by using a drinkable water instead of the defrosting water 245 as the humidifying water and employing a method close to natural evaporation.

Accordingly, it is an object of the present invention to maintain the humidity in the secondary storage room in a predetermined range so as to use food-drinkable water as humidifying water and to store food for a long time.

According to the present invention, a refrigerator having a main body having a main storage chamber and an auxiliary storage chamber, the refrigerator comprising: an air suction fan for sucking air from one side of the main storage chamber; A humidification tank storing water supplied from the outside and allowing air sucked by the air suction fan to be discharged to the auxiliary storage chamber through the stored water; It is achieved by a refrigerator characterized in that it comprises a humidifying duct connected to the discharge portion of the air suction fan to guide the air sucked by the air suction fan to the humidification tank.

Here, the water supply device for supplying water to the humidification tank may be further included.

The humidification tank includes a body forming an exterior, a separating plate partitioning the body, and a water passing hole provided to allow water to pass through the separating plate, wherein the humidifying duct is a discharge portion of the air suction fan. Connected to and guides the air sucked by the air suction fan to one side partitioned by the separation plate of the humidification tank.

In addition, the water supply device is a water supply pipe for guiding water from the water supply source to the humidification tank, a water supply valve provided on the water supply pipe path to adjust the water passing through the water supply pipe, and provided on the water supply pipe path to the humidification tank It may include a water filter for purifying the water supplied.

Here, the humidity sensor for detecting the humidity in the auxiliary storage chamber; The apparatus may further include a controller configured to adjust driving of the air inlet fan so that the humidity detected by the humidity sensor is within a predetermined range.

In addition, the water level sensor for detecting the water level of the water stored in the humidification tank; It may further include a control unit for controlling the opening and closing of the water level control valve so that the water level detected by the water level sensor is within a predetermined range.

And, the auxiliary storage chamber is provided with a storage container for storing the storage, the humidification tank is provided with a discharge portion of the protruding shape to discharge the air introduced by the air inlet fan into the storage container, the storage The container may have a through hole through which the discharge part passes.

Here, a plurality of slits may be formed in the discharge part.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the refrigerator according to the present invention. The same components as those of the conventional refrigerator are given the same reference numerals.

As shown in FIG. 4, the refrigerator 1 according to the present invention includes a main body 10 provided with a main storage chamber 211 and an auxiliary storage chamber 213; An air suction fan 20 for sucking air in the main storage chamber 211; A humidifying duct 30 for guiding the air sucked from the air suction fan 20 to the humidification tank 40; It includes a humidification tank 40 for storing the water supplied from the outside so that the air sucked by the air suction fan 20 is discharged to the auxiliary storage chamber through the stored water.

As shown in FIG. 4, the main body 10 has an inner wound 13 provided with a refrigerating compartment 210 including a main storage compartment 211 and an auxiliary storage compartment 213, and an outer appearance at an interval between the inner wound 13 and a foaming agent. Trauma 15 to form a.

The main body 10 includes a compressor (not shown) for compressing a gaseous refrigerant at high temperature and high pressure to cool the refrigerating chamber 210, a condenser (not shown) for condensing the gaseous refrigerant compressed from the compressor in a liquid state; A capillary tube (not shown) for converting the liquefied refrigerant into a state of low temperature and low pressure, and an evaporator 250 for absorbing heat of ambient air to vaporize the refrigerant liquefied from the capillary to low temperature and low pressure.

As shown in FIG. 4, when the humidification tank 40 is installed inside the refrigerating chamber 210, the main body 10 supplies a water supply pipe (S) to supply water to the humidification tank 40 from an external water supply source S. 53 may be a passageway through.

The rear of the main body 10 is provided with a machine room 260 in which a compressor (not shown) and a condenser (not shown) are installed. In the lower part of the main body 10, as shown in FIG. 4, the defrosting water defrosted on the surface of the evaporator 250 by a heater or a gas of high temperature and high pressure is provided in the machine room 260. Defrost water discharge pipe (19) for discharging to is installed.

The defrost water discharge pipe 19 is preferably installed in the main body 10 so as not to protrude from the defrost water receiver 243 in order to directly discharge the defrost water not used as the humidifying water to the defrost water storage unit 249.

The air suction fan 20 may be accommodated in the humidifying duct 30 as shown in FIG. 4, and may protrude out of the humidifying duct 30 as necessary. The air suction fan 20 includes a plurality of blades 21 and an air suction fan driver 23. The length and number of blades 21 of the air suction fan 20 are appropriately determined in consideration of the volume of the refrigerating chamber 210 and the size of the humidification duct 30 that require humidification.

The air suction fan 20 may be in any position as long as it can suck the air in the refrigerating chamber 210, but as shown in FIGS. 4 and 5, the refrigerating chamber cold air duct at the center of the rear side of the main storage chamber 211 ( 90) It is preferable to install on the front side in that it can suck a lot of air.

The air suction fan drive unit 23 is an electric motor such as an induction motor or a synchronous motor, which rotates at a predetermined constant rotation speed when applied as an AC power source having a constant frequency, or, if necessary, a variable rotation speed. It may be an electric motor having a.

The air suction fan 20 may be coupled to the humidification duct 30 by a fastener, an adhesive, a locking groove coupling, or other conventional fastening method.

As shown in FIG. 6, the humidification duct 30 includes an inlet opening 31a through which air of the air suction fan 20 is introduced and an outlet opening 31b for discharging the inlet air to the humidification tank 40. Humidification duct body 31 is provided.

As shown in FIG. 5, the humidification duct 30 may be installed to protrude in front of the refrigerating compartment cold air duct 90 that guides the cold air formed in the evaporator 250 to the refrigerating compartment 210. In this case, the humidification duct 30 is preferably formed in a flat rectangular cross-sectional shape on the premise of satisfying other design requirements for the refrigerating chamber 210 space. If necessary, the humidifying duct 30 may be accommodated in the refrigerating compartment cold air duct 90 together with the air suction fan 20, and an opening may be provided in the refrigerating compartment cold air duct 90 at a position corresponding thereto. The humidification duct 30 may be any one that can guide the air sucked by the air suction fan 20 into the humidification tank 40.

Humidification duct 30, as shown in Figure 6, when receiving the air suction fan 20, the fan-shaped fan cover 33 to prevent the air suction fan 20 is directly exposed to the user (33) It may include.

Humidification duct 30 is one side of the discharge portion of the air suction fan 20, the other side of the humidification tank air inlet portion 45 of the humidification tank 40 and fasteners, adhesives, engaging groove coupling or other conventional fastening means Combined by If necessary, the humidifying duct 30 and the humidifying tank 40 may be integrally formed by plastic injection molding or the like.

Humidification tank 40, as shown in Figure 6, the humidification tank body 41 for forming the appearance and stores the water supplied from the outside, the separator plate 43 for partitioning the humidification tank body 41 and , Humidification tank air inlet portion 45, the air guided by the humidification duct 30, and the water supply pipe connection portion 47 is connected to the water supply pipe 53 is connected to the external water supply source (S) supplied water And a humidification tank air discharge part 49 for discharging the air introduced by the humidification tank air inlet part 45 to the outside.

The humidification tank 40 is installed in the lower central inner box 13 of the auxiliary storage chamber 213, as shown in FIG. If the air can be discharged to the auxiliary storage chamber 213, it may be installed anywhere in the refrigerating chamber 213. If necessary, the humidification tank 40 may be installed outside the refrigerating chamber 210.

The humidification tank body 41 has the space 51a, 51b partitioned as the humidification tank 41a and the water storage tank 41b by the separating plate 43 as shown in FIG. 4 and FIG. By providing the separating plate 43 to have the humidification tank 41a and the storage tank 41b, there is an advantage that the volume of the humidification tank 41a and the storage tank 41b can be properly adjusted as necessary. In some cases, the humidification tank body 41 may be used as the humidification tank 41a and the water storage tank 41b without partitioning the humidification tank body 41 into the separating plate 43.

The separating plate 43 partitions the humidification tank body 41 to form a plurality of spaces 41a and 41b in the humidification tank 40. The lower surface of the separating plate 43 is provided with a water passage hole 43a through which water from the water storage tank 41b flows into the humidification tank 41a. Thus, when water is supplied to the water storage tank 41b, the water moves to the humidification tank 41a through the water passage hole 43a.

The position of the water passage hole 43a is determined to be an appropriate position so that the water of the water tank 41b can flow into the humidification tank 41a even when the water level of the water tank 41b is the lowest (WL in FIG. 7). Thus, the water level of the water storage tank 41b and the humidification tank 41a can be made the same.

The humidification tank air inlet 45 is in communication with the discharge opening 41b of the humidification duct 30. Humidification tank air inlet (45) The humidification tank body 41 is provided in the humidification tank 41a. Humidification tank air inlet 45 is preferably formed in a shape corresponding to the size of the discharge opening (41b) of the humidification duct (30). Humidification tank air inlet 45 is coupled by the humidification duct 30 and fasteners, adhesives, engaging groove coupling or other known fastening means. The coupling portion may be provided with a sealing member (not shown) such as a gasket so that the introduced air does not leak.

As shown in FIG. 6, the water supply pipe connecting part 47 is provided on the water storage tank 41b side of the humidifying tank body 41 and connected to the water supply pipe 53 of the water supply device 50. It is preferable that a sealing member (not shown) such as a gasket is interposed between the water supply pipe connection part 47 and the water supply pipe 53 so that water does not leak.

Humidification tank air discharge portion 49, as shown in Figure 6, the humidification tank body for discharging rapidly humidified air in the front direction of the refrigerating chamber 210 to the humidification tank (41a) of the chest tank body 51 ( It may be provided in a shape protruding from the 41). The humidification tank air discharge part 49 may be formed only by an opening part. If necessary, the humidifying tank air discharge unit 49 may be provided in a plurality of slit shapes to prevent foreign matter from entering the humidifier tank 41a and to improve the discharge rate of the humidified air.

The humidification tank air discharge unit 49 is provided in the humidification tank body 41 on the side of the humidification tank 41a at a position corresponding to the position requiring the humidification in the refrigerating chamber 210.

The humidification tank air discharge part 49 is formed in FIG. 6, but may be provided in plurality in consideration of the volume, position, and the like of the refrigerating chamber 213 to be discharged.

The refrigerator 1 according to the present invention may further include a water supply device 50 for supplying external water to the humidification tank 40.

4 and 6, the water supply device 50 includes a water supply pipe 53 for guiding water from an external water supply source S to the water storage tank 41b of the humidification tank 40, and a water supply pipe 53. Water purification filter 55 provided on the path of the purified water and the water supply control valve 57 for adjusting the amount of water passing through the water supply pipe (53).

The water supply pipe 53 connects the external water supply source S and the water supply pipe connecting portion 47 of the humidification tank 40 to guide external water to the water storage tank 41b of the humidification tank 40.

The water filter 55 is installed on the path of the water supply pipe 53. The water filter 55 may be any method as long as the water supplied from an external water supply can be purified to produce water that can be eaten.

The water supply control valve 57 includes a flow control valve such as a solenoid valve 67 or an electronic expansion valve 67 to adjust the amount of water supplied along the water supply pipe 53.

The arrangement of the purified water filter 55 and the feed water control valve 57 is not limited to the arrangement shown in Figs. 4 and 6 and may be arranged in reverse.

The refrigerator 1 according to the present invention includes a humidity sensor 60 for detecting the humidity of the auxiliary storage chamber 213, a water level sensor 70 for detecting the water level of the water storage tank 41b of the humidification tank 40, and an auxiliary storage chamber. The control unit 80 may further include an air suction fan driving unit 23 and a water supply control valve 57 to maintain the humidity and the water level of the reservoir 41b in the predetermined range 213.

As shown in FIG. 4, the humidity sensor 60 is installed in one region of the auxiliary storage chamber 213 to detect humidity inside the auxiliary storage chamber 213.

As shown in FIG. 6, the water level sensor 70 includes a plurality of electrode probes 70a and 70b having different lengths and detects an electrode level sensor 70 or a plurality of buoys for detecting the water level corresponding to the length. It can be used irrespective of the detection method as long as it can detect the water level of the reservoir 41b, such as the float type water level sensor 70 that detects the water level corresponding to the buoy. The relatively short electrode probe 70a may detect the lowest water level, and the relatively long electrode probe 70b may detect the highest water level.

As illustrated in FIGS. 7 and 8, the controller 80 operates the air suction fan driving unit 23 when the humidity value detected by the humidity sensor 60 installed in the auxiliary storage chamber 213 is less than or equal to a predetermined value. When the humidity value detected by the humidity sensor 60 is equal to or higher than a predetermined value, the air suction fan driving unit 23 is turned off. For example, as shown in FIG. 8, when the minimum target humidity value of the auxiliary storage chamber 213 is 70% and the highest Mokpo humidity value is 90%, the air suction fan is set to 70% or less of the humidity sensor 60. The driving unit 23 is operated (ON in FIG. 8) to discharge humid air into the auxiliary storage chamber 213 to increase the humidity, and when the humidity value is 90% or more, the operation of the air suction fan driving unit 23 is stopped (FIG. 8). Humidity can be suppressed.

If necessary, the controller 80 may adjust the rotation speed of the air suction fan 20 according to the humidity value detected by the humidity sensor 60. For example, when the humidity value of the humidity sensor 60 is 70% or less in the target humidity range as described above, the output of the air suction fan driver 23 is maximized so that the rotation speed of the air suction fan 20 is maximum. When the humidity value of the humidity sensor 60 increases by 1%, the output of the air suction fan driving unit 23 is linearly decreased, and when the humidity value reaches 90%, the output of the air suction fan driving unit 23 is zero. You can also adjust to (零).

In addition, the control unit 80, as shown in Figure 8, when the water level detected by the water level sensor 70 installed in the humidification tank 40 is below a predetermined minimum water level (WL of Figure 8) water supply control valve Open (57) (open in Fig. 8) so that water is supplied from the water supply source (S), when the water level of the water level sensor 70 reaches a predetermined maximum water level (WH in Fig. 7) water supply control valve (57) ) To close the water supply (CLOSE in FIG. 8). If necessary, the controller 80 causes the water supply control valve 57 to open only for a predetermined time (T in FIG. 8) when the water level of the water level sensor 70 is lower than or equal to the lowest water level (WL in FIG. 8). It may be. In this case, since the water level sensor 70 only needs to detect the lowest water level, there is an advantage that the water level sensor 70 can be configured with only one electrode or buoy. The opening time (T in FIG. 8) of the feedwater control valve 57 is appropriately determined in consideration of the volume of the reservoir 41b, the capacity of the feedwater control valve 57, and the like.

The refrigerator 1 according to the present invention is provided in one region of the refrigerator compartment cold air duct 90 and the refrigerator compartment cold air duct 90 provided in the main body 10 to guide the cold air formed in the evaporator 250 to the refrigerator compartment 210. It further includes a blowing fan 230 for forcibly blowing into the refrigerating chamber (210).

As shown in FIG. 4, the cold compartment duct 90 has a cold air discharge hole 90a for discharging cold air to the cold compartment 210 on the upper plate surface, and the circulated cold air to the evaporator 250 on the lower plate surface. Inflowing cold air inflow hole (90b) is provided.

As shown in FIG. 5, the cold air inflow hole 90b may be provided outside the humidification duct 30 to avoid interference with the humidification duct 30.

The refrigerator 1 according to the present invention further includes a storage container 95 provided in the auxiliary storage room to store the stored matter.

Storage container 95, as shown in Figure 5, may be provided with a through groove (95a) through which the protruding humidification tank air discharge portion.

Hereinafter, a humidification process of the refrigerator 1 according to the present invention having the above-described configuration will be described.

When power is applied to the refrigerator 1, coolant is formed in the evaporator 250 while circulating a cycle consisting of a compressor (not shown), a condenser (not shown), a capillary tube (not shown), and an evaporator 250. The blowing fan 230 is forcibly discharged to the refrigerating chamber 210 to cool the refrigerating chamber 210. The controller 80 opens and closes the water supply control valve 57 according to the water level detected by the water level sensor 70 to maintain the water level of the water storage tank 41b of the humidification tank 40 in a predetermined range, and at the same time the auxiliary storage chamber ( According to the humidity value detected by the humidity sensor 60 of the 213, the air suction fan driving unit 23 is turned on / off to maintain the internal humidity of the auxiliary storage chamber 213 in a predetermined range.

Thus, even when the operation of the blower fan 230 is stopped, the auxiliary storage chamber 213 may be humidified by the air suction fan 20 provided separately. In addition, as shown in FIG. 4, when the auxiliary storage chamber 213 and the main storage chamber 211 are not sealed to each other, by humidifying the auxiliary storage chamber 213, the main storage chamber 211 may additionally increase humidity. Can increase the humidity of the entire refrigerating chamber (210).

In addition, the water supplied from the water supply source (S) is purified to convert the water to drinkable water, using the purified water as the humidifying water can be stored safely stored food.

In addition, since water can be continuously supplied from the water supply source S, as long as the refrigerator 1 operates, the user can continuously humidify the auxiliary storage chamber 213 without having to replenish the humidifying water.

In addition, since the defrost water is not used as the humidifying water, the defrost water can be immediately discharged to the defrost water storage unit 249 and the inside of the refrigerator can be kept clean. In addition, the defrost water discharge pipe 19 may not be protruded above the defrost water receiver 243, so that the length of the defrost water discharge pipe 247 may be shortened, thereby reducing the material cost.

In addition, the dry air in the refrigerating chamber is forcibly sucked and brought into contact with water stored in the humidification tank 41a to be converted into humid air and supplied to the auxiliary storage chamber 213, thereby keeping food stored in the auxiliary storage chamber 213 fresh for a long time. I can keep it.

As described above, according to the refrigerator of the present invention, food can be stored in a safe and fresh state for a long time by using the drinkable water as the humidifying water and discharging the dry air of the refrigerating compartment into relatively humid air.

Claims (8)

A refrigerator having a main body having a main storage compartment and a secondary storage compartment, An air suction fan for sucking air from the main storage chamber; A humidification tank storing water supplied from the outside and allowing air sucked by the air suction fan to be discharged to the auxiliary storage chamber through the stored water; And a humidifying duct connected to the discharge part of the air suction fan to guide the air sucked by the air suction fan to the humidification tank. The method of claim 1, The refrigerator further comprises a water supply device for supplying water to the humidification tank. The method of claim 1, The humidification tank includes a body forming an appearance, a separating plate partitioning the body, and a water passing hole provided to allow water to pass through the separating plate, And the humidifying duct is connected to the discharge part of the air suction fan to guide the air sucked by the air suction fan to one side partitioned by the separation plate of the humidification tank. The method according to claim 1, wherein The water supply device includes a water supply pipe for guiding water from the water supply source to the humidification tank, a water supply valve provided on the water supply pipe path to adjust the amount of water passing through the water supply pipe, and supplied to the humidification tank provided on the water supply pipe path. A refrigerator comprising a water filter for purifying water. The method according to any one of claims 1 to 3, A humidity sensor for detecting humidity in the auxiliary storage room; And a controller configured to control driving of the air inlet fan so that the humidity detected by the humidity sensor is within a predetermined range. The method according to any one of claims 1 to 3, A water level sensor for detecting the water level stored in the humidification tank; And a control unit for controlling opening and closing of the water quantity control valve so that the water level detected by the water level sensor is within a predetermined range. The method of claim 6, The auxiliary storage room is provided with a storage container for storing the storage, The humidification tank is provided with a humidification tank air discharge part for discharging the air introduced by the air inlet fan into the storage container, The storage container is a refrigerator, characterized in that it has a through hole through which the air discharge unit of the humidification tank. The method of claim 7, wherein And a plurality of slits are formed in the gas tank discharge part.

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