KR101439540B1 - Apparatus for supercooling - Google Patents

Abstract

The present invention relates to a supercooling apparatus. More particularly, the present invention relates to a supercooling apparatus for storing water in a supercooled state such that when a user applies an impact to a water storage container, the water in the container starts to undergo phase change and the ice crystals and the liquid are mixed into a slush state.

The present invention provides a supercooling device comprising a cooling chamber provided with cold air, a heating device attached to a container for storing food or water, and heating air over the container to prevent freezing of water. With this arrangement, it is possible to heat the air above the container in which ice crystals are prone to be generated to prevent freezing of water stored in the container, and to store the water in a supercooled state.

Supercooling device, slush, icing, ice crystal, heating device

Description

[0001] APPARATUS FOR SUPERCOOLING [0002]

The present invention relates to a supercooling apparatus. More particularly, the present invention relates to a supercooling apparatus for storing water in a supercooled state such that when a user applies an impact to a water storage container, the water in the container starts to undergo phase change and the ice crystals and the liquid are mixed into a slush state. The present invention also relates to a supercooling apparatus capable of storing water in a supercooled state by being applied to a freezing chamber of a general refrigerating chamber.

The supercooling means a phenomenon in which the molten matter or solid does not change even when it is cooled to the phase transition temperature or lower in the equilibrium state. Each of the materials has a stable state according to the temperature at that time, so that when the temperature is gradually changed, the members of the material can follow the change in temperature while maintaining a stable state at each temperature. However, if the temperature suddenly changes, there is no room for the member to change to a stable state according to each temperature. Therefore, the stable state at the starting point temperature is maintained, or a part of the state changes to the state at the end point temperature.

For example, when water is slowly cooled, it does not solidify temporarily even when the temperature is lower than 0 占 폚. However, when the object becomes supercooled, it becomes a kind of metastable state, and its unstable equilibrium state is broken by the slightest stimulus, and it is easy to move to a more stable state. That is, when a small piece of the substance is put into the supercooled liquid or when the liquid suddenly shakes, solidification starts immediately, the temperature of the liquid goes up to the freezing point, and a stable equilibrium state is maintained at that temperature.

Conventionally, an electrostatic field atmosphere is made in a refrigerator, and thawing of meat and fish is carried out at a negative temperature in this refrigerator. In addition, meat and fish are being kept in the lead of fruits.

This technique uses a supercooling phenomenon. This supercooling phenomenon refers to a phenomenon in which a melt or solid does not change even when it is cooled to a phase transition temperature or lower in an equilibrium state.

Examples of such techniques include electrostatic processing methods, electrostatic discharge processing devices, and electrodes used therefor, which are disclosed in Korean Patent Publication No. 2000-0011081.

Fig. 1 is a view showing an embodiment of a defrosting and line keeping apparatus according to the prior art. The cold storage trough 1 is composed of a heat insulating material 2 and an outer wall 5, Respectively. The metal shelf (7) installed in the hearth has a two-stage structure, and each stage is equipped with a thawing or leading maintenance and aging object of vegetables, meat, and fish. The metal shelf (7) is insulated from the bottom of the earth by the insulator (9). The high voltage generating device 3 can generate DC and AC voltages up to 0 to 5000 V, and the inside of the heat insulating material 2 is covered with an insulating plate 2a such as vinyl chloride. The high voltage cable 4 for outputting the voltage of the high voltage generating device 3 is connected to the metal wire half 7 through the outer wall 5 and the heat insulating material 2.

The safety switch 13 (see Fig. 2) (not shown) is turned off and the output of the high voltage generator 3 is shut off when the door 6 provided on the front surface of the cold storage container 1 is opened.

2 is a circuit diagram showing the circuit configuration of the high-voltage generating apparatus 3. As shown in Fig. AC 100 V is supplied to the primary side of the voltage regulating transformer 15. Reference numeral 11 denotes a power lamp, and reference numeral 19 denotes a lamp indicating an operating state. When the door 6 is closed and the safety switch 13 is turned on, the relay 14 is activated and this state is indicated by the relay operation lamp 12. By the operation of the relay, 14a, 14b and 14c are closed and an AC 100 V power supply is applied to the primary side of the voltage regulating transformer 15. [

The applied voltage is adjusted by the adjusting knob 15a on the secondary side of the voltage adjusting transformer 15, and the adjusted voltage value is displayed on the voltmeter. The adjustment knob 15a is connected to the primary side of the secondary side boost transformer 17 of the voltage regulating transformer 15. The boost transformer 17 is boosted at a ratio of, for example, 1:50, When a voltage of 60V is applied, the voltage is increased to 3000V.

One end of the secondary side output of the step-up transformer (17) (O ₁₎ is coupled to the metal, which is insulated from said cold storage through a high-voltage cable (4) a shelf (7), the other end (O ₂₎ of the output is ground. Further, since the outer wall 5 is grounded, even if the user of the cold storage container 1 comes into contact with the outer wall of the cold storage container, it does not become an electric shock. 1, the metal shelf 7 needs to be maintained in an insulated state in the interior of the furnace, and therefore, it is necessary to move away from the inside furnace wall (the air acts insulating) . When the object 8 protrudes from the metal shelf 7 and contacts the high-end wall, current flows to the ground through the high-side wall. Thus, when the insulating plate 2a is stuck to the inner wall, drop of the applied voltage is prevented. If the metal shelf 7 is covered with a vinyl chloride material or the like without exposing the metal shelf 7 in the furnace, the inside of the furnace becomes the electric furnace atmosphere.

In such a conventional technique, a complicated device for generating an electric field or a magnetic field is required for storage in the supercooled state of the stored object, by applying an electric field or a magnetic field to the object to be cooled and stored, And a high power consumption for generation of such an electric field or a magnetic field is required. The apparatus for generating an electric field or a magnetic field may additionally include an apparatus (for example, an electric field or a magnetic shielding structure, a shielding apparatus, etc.) for user's safety at the time of generation of an electric field or a magnetic field due to high power .

An object of the present invention is to provide a supercooling device for storing a liquid without freezing even at a temperature below the freezing point.

Another object of the present invention is to provide a supercooling device applicable to a refrigerator for storing a liquid or liquid itself contained in food in a supercooled state by using the structure of a conventional refrigerator.

The present invention relates to a supercooling device comprising a cooling chamber provided with cold air, a food containing liquid or a heating device attached to a container for storing a liquid and heating the air above the container to prevent freezing of the liquid. Lt; / RTI > With this configuration, it is possible to heat the air above the container in which ice crystals are prone to be generated to prevent freezing of the liquid stored in the container, and to store the liquid in a supercooled state. In particular, foods containing excessive amounts of moisture such as kimchi or Dongchimi can be kept fresh for a long time.

According to another aspect of the present invention, there is provided a supercooling device, wherein the heating device has a cylindrical body whose one surface is opened. With this arrangement, it can be easily coupled to the upper part of the water storage container, which is mainly circular.

According to another aspect of the present invention, there is provided a supercooling device, characterized in that the heating device has a heating wire for heating air in a cylindrical body. With this configuration, it is possible to safely heat only the air above the storage container.

According to another aspect of the present invention, there is provided a supercooling device, wherein the heating device further comprises an inductor located above the cylindrical body, and the cylindrical body is made of metal.

According to still another aspect of the present invention, there is provided a supercooling apparatus characterized by comprising a sealing member which seals a container and a heating device in a lower portion of a cylindrical main body. With this configuration, it is possible to shut off the air in the cooling chamber, the temperature of which is relatively low, in the heating device having a relatively high temperature, so that the cooling efficiency of the supercooling device can be increased and the power consumption for maintaining the supercooling degree can be reduced.

According to another aspect of the present invention, there is provided a supercooling apparatus characterized in that the sealing member is a pressure-sensitive adhesive pad. With this configuration, the heating device and the container can be reliably sealed and reused many times.

According to another aspect of the present invention, there is provided a supercooling device, comprising: a door that opens and closes a cooling chamber; and a separate chamber that is opened and closed by a portion of the door and is a part of the cooling chamber. With this configuration, it is possible to take out the stored product stored in the separate chamber in the cooling chamber to the outside of the cooling chamber without opening the door.

According to another aspect of the present invention, there is provided a supercooling device characterized in that the heating device is located in a separate chamber. With this configuration, the liquid and food stored in the supercooled state can be conveniently taken out of the cooling chamber while minimizing the influence of the cooling chamber on the heating device.

According to another aspect of the present invention, there is provided a supercooling apparatus, which further comprises a control unit for controlling the operation of the heating apparatus. With this arrangement, it is possible to release the operation of the heating device to freeze the food stored in the container, and to control the liquid stored in the container to be in a slush state.

According to another aspect of the present invention, there is provided a supercooling apparatus, further comprising an input unit for receiving whether or not the power of the heating apparatus is applied. With this configuration, the power of the heating device can be turned off by the user's choice, and the liquid stored in the supercooled state can be phase-changed to the slush state.

According to another aspect of the present invention, there is provided a supercooling apparatus comprising: a door for opening and closing a cooling chamber; and a sensing unit for sensing opening and closing of the door, wherein the control unit stops the operation of the heating apparatus when the door is opened to provide. With this configuration, the power of the heating device is stopped when the door to which the air of normal temperature enters is opened to prevent the excessive temperature rise of the liquid stored in the container. Also, the power efficiency of the supercooling apparatus can be increased.

In another aspect of the present invention, the apparatus further includes temperature sensing means for sensing a temperature of a peripheral portion of the container of the cooling chamber, wherein the control unit stops operation of the heating device when the temperature of the peripheral portion of the container rises above the maximum ice- And a supercooling device is provided. In a case where the door is closed and the ice streak is provided in the cooling chamber, the temperature in the cooling chamber may rise due to operation of a heater for releasing ice formed in the ice stray. According to the present invention, it is possible to stop the power supply of the heating apparatus when the temperature rises, to prevent the temperature of the liquid from rising, and to increase the power efficiency.

According to a further aspect of the present invention, there is provided a supercooling apparatus characterized by further comprising an additional heating device for applying heat to the container during freezing of food or liquid stored in the container. With this configuration, when the supercooled state of the food or liquid stored in the container is released and frozen due to an external impact or the like, the additional heating device can be operated to defrost.

In another aspect of the present invention, there is provided a supercooling apparatus comprising: a sensing unit that senses whether food or liquid stored in a container is frozen; and a controller that controls operation of the additional heating unit with information obtained from the sensing unit. to provide. With this arrangement, the user can defrost food or liquid automatically when the food or liquid is frozen by the control unit without directly confirming whether the food or liquid in the container is frozen.

According to another aspect of the present invention, there is provided a supercooling device, wherein the cooling chamber includes a refrigerating chamber and a freezing chamber, and the heating device is located in a freezing chamber. With this configuration, the liquid stored in the vessel can be stored at a temperature lower than the temperature of the maximum ice crystal generating zone without adding a separate cooling air flow path.

The present invention also provides a cooling apparatus for a refrigerator, comprising: a cooling chamber in which a cooling state is maintained at a sub-zero temperature or lower; a container in which a food or liquid having a high specific gravity of liquid is stored in a cooling chamber; A supercooling device is provided.

The present invention also provides a cooling device for a refrigerator, comprising: a cooling chamber in which a cooling state is maintained at a sub-subzero temperature; a food containing liquid in the cooling chamber; a container for storing liquid; a heating device for heating the air in the upper portion of the container; And a control device for controlling the temperature of the heating device to the temperature of the image.

According to another aspect of the present invention, there is provided a refrigerator comprising: a door for opening and closing a cooling chamber; and a separate chamber which is opened and closed by a part of the door and is a part of the cooling chamber, And a supercooling device. With this configuration, the food or liquid stored in the supercooled state can be taken out without opening the door of the cooling chamber.

According to another aspect of the present invention, there is provided a supercooling device characterized in that the heating device is removably attachable to a container. With this arrangement, the heating device can be separated and the container can be taken out, the user can selectively attach the heating device to the container, and can select whether or not to store the food stored in the container in a supercooled state for each container.

According to another aspect of the present invention, there is provided a supercooling device, wherein the heating device further includes a sealing member sealing the gap between the container and the heating device when attached to the container at a lower portion of the heating device. With this configuration, it is possible to prevent the heated air from flowing out to the cooling chamber, which is to be kept at zero.

The supercooling device provided by the present invention can be easily applied without changing the structure of a conventional refrigerator.

Further, the supercooling apparatus provided by the present invention can store water in a supercooled state that is not frozen at a temperature lower than the phase transition temperature.

Also, the supercooling apparatus provided by the present invention can change the water to a slush state by applying only a slight physical stimulation to the water that has been stored in the supercooled state.

Further, the supercooling apparatus provided by the present invention can increase power efficiency.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the drawings.

3 is a diagram showing a process in which ice-cold tuberculosis is generated in a liquid under cooling. As shown in Fig. 3, the container C containing the liquid L in the cooling space S is cooled.

It is assumed that the cooling temperature of the cooling space S is cooled, for example, from room temperature to 0 degrees (phase transition temperature of water) or lower than the phase transition temperature of the liquid (L). When this cooling progresses, for example, at a temperature of -1 to -5 degrees below the maximum ice crystal generation zone of water in which ice crystals are maximally generated at a temperature of -1 to -5 degrees Celsius for water, Of the water or the liquid (L) at the maximum cooling temperature of the ice crystal producing zone and below.

During this cooling, evaporation takes place from the liquid L so that the water vapor W1 flows into the gas (or space) Lg in the vessel C. When the container C is closed by the lid Ck, the gas Cg can be supersaturated due to the evaporated water vapor W1. However, in this specification, the container C may selectively include the lid Ck, and if included, the cold air of the cooling space may directly flow in, or the temperature of the gas Lg on the surface or the surface of the liquid L May be prevented to some extent from being cooled by cold air.

The cooling temperature is formed into the ice tuberculosis F1 in the gas Lg or the ice tuberculosis F2 in the inner wall of the container while reaching or passing the temperature of the maximum ice crystal generating zone of the liquid L. [ Condensation occurs at a portion where the surface Ls of the liquid L touches the inner wall of the container C (substantially coincides with the cooling temperature of the cooling space S), and this condensed liquid L is mixed with ice Lt; RTI ID = 0.0 > F3 < / RTI >

For example, when the ice tuberculosis F1 in the base Lg descends and infiltrates the liquid L through the surface Ls of the liquid L, the supercooled state of the liquid L is released, L of the liquid L is released, and the supercooling of the liquid L is released.

Alternatively, the ice tuberculosis F3 comes into contact with the surface Ls of the liquid L, whereby the supercooled state of the liquid L is released, and the liquid L is frozen.

As described above, when the liquid L is stored below the temperature of the maximum ice crystal producing zone of the liquid L, it is evaporated from the liquid L, so that the liquid (L) Due to the freezing of water vapor on the surface Ls of the liquid L and the freezing of the inner wall of the container C near the surface Ls of the liquid L, .

FIG. 4 is a view illustrating a process for preventing ice tuberculosis from being applied to a supercooling apparatus according to the present invention.

4 is a graph showing the relationship between the temperature on the surface Ls of the substrate Lg or the surface of the liquid L in order to prevent the freezing of the water vapor W1 in the gas Lg, Is higher than the temperature of the maximum ice crystal generation zone of the liquid (L), more preferably, it is not lower than the phase transition temperature of the liquid (L). The temperature of the surface Ls of the liquid L is set to the temperature of the maximum ice crystal generation zone of the liquid L so that the ice can not be frozen even if the surface Ls of the liquid L comes into contact with the inner wall of the container C. [ , More preferably at least the phase transition temperature of the liquid (L).

Thereby, the liquid L in the container C maintains the supercooled state even at the phase transition temperature or lower, or even under the maximum ice crystal generation bulk temperature of the liquid L.

5 is a graph of the supercooled state of water according to FIG. The graph of FIG. 5 is the temperature graphs measured with the principle according to FIG. 4 applied when the liquid L is water.

As shown in Fig. 5, the I line is the cooling temperature curve of the cooling space S, the II line is the temperature curve of the gas Lg (air) on the water surface in the container C, C) the temperature of the outer surface, the temperature of the outer surface of the container C is substantially equal to the temperature of the water inside the container C.

As shown in the drawing, when the cooling temperature is maintained at about -13 to -14 degrees (see I line), the temperature of the gas Lg on the water surface in the vessel C is set to about 4 When maintained at -6 degrees, the supercooled state in which the liquid state is maintained is maintained for a long time, while the temperature of the water in the vessel C is kept at about -11 deg., Which is lower than the temperature of the maximum ice crystal generation zone of water.

6 and 7 are views showing a first embodiment of a heating apparatus provided in the supercooling apparatus of the present invention. The heating apparatus 100 is attached to the upper part of the container 200 stored in the cooling chamber to prevent the ice crystals of the liquid stored in the container 200 from being generated. The heating apparatus 100 includes a body 110 having a substantially cylindrical shape such as a cylindrical shape, a vertical shape and a conical shape, a heating wire 120 attached to the inner or outer surface of the body, And a sealing member 130 for blocking the hot air in the cooling chamber 110 from intermingling with the cold air in the cooling chamber. The upper portion of the main body 110 may further include a heating wire fixing member 122 to help the heating wire 120 to be attached and fixed to the main body 110. The size of the main body 110 can be variously manufactured. The supercooling device is a device for adjusting the inner diameter of the container 200 according to the size of the container 200 storing the liquid, the size of the container 200 storing the heating device 100 having a small inner diameter 110, A plurality of heating apparatuses 100 having a large main body 110 may be included.

The heating device 100 heats the air existing in the interior space 140 of the heating device 100, that is, the space above the container 200. Therefore, it is possible to prevent the freezing of water vapor on the surface of the liquid and the freezing of the inner wall of the container near the surface of the liquid, as described above. Therefore, there is an advantage that the heating device 100 is provided in the cooling chamber of the refrigerator without changing the structure of the conventional refrigerator so that the liquid can be stored in the supercooled state.

On the other hand, when the hot air in the inner space 140 and the cold air in the cooling chamber are mixed, the temperature of the upper part of the container 200 is not sufficiently raised, and ice crystals may be generated. In addition, there is a fear that the temperature inside the cooling chamber rises and the cooling efficiency is lowered. Accordingly, the heating apparatus 100 includes the sealing member 130 at the lower portion of the main body 110, that is, at the contact portion with the container 200. As the sealing member 130, a pressure-sensitive adhesive pad having high adhesion and high adhesiveness can be used. The first embodiment of the present invention shown in Figs. 6 and 7 shows an example in which the adhesive pad is used as the sealing member 130. Fig.

FIG. 8 is a view showing a second embodiment of a heating apparatus included in the supercooling apparatus according to the present invention. In the case of the second embodiment, the principle of the induction heater is used in the heating apparatus 100 for heating the container for storing the liquid. The heating apparatus 100 includes an inductor 150 positioned above the space in which the container is stored, a metal body 110 covering the top of the container, and a sealing member 130 for sealing and sealing the body and the container do. The induction heater 150 is used to induction-heat the main body 110 by the eddy current. The main body 110 is heated to raise the temperature of the air present in the upper portion of the container coupled to the inside of the main body 110, thereby preventing ice crystals from being generated, as in the first embodiment. Also, when the inductor 150 is used, there is no need to supply power to the main body 110, which is advantageous in that the main body 110 is free to move. The second embodiment of the present invention shown in FIG. 8 uses a ring-shaped member made of an elastic material such as rubber as the sealing member 130. The sealing member 130 may have a corrugated shape to further improve the heat insulating property and the stretchability.

9 is a view showing an embodiment of a supercooling apparatus according to the present invention. The supercooling apparatus 1000 is generally similar in structure to a conventional refrigerator. The supercooling apparatus 1000 includes a freezing chamber 1100 and a cooling chamber 1200 and includes a freezing chamber door 1300 and a refrigerating chamber door 1400 for opening and closing the freezing chamber 1100 and the freezing chamber 1200, do. Each of the freezing compartment door 1300 and the refrigerating compartment door 1400 has separate doors 1310 and 1410 that can draw in and take in the stored contents without opening the freezing compartment door 1300 and the refrigerating compartment door 1400 from the outside . Separate doors 1310 and 1410 form part of freezer compartment door 1300 and refrigerator compartment door 1400, respectively. A separate space opened and closed by a separate door 1410 provided in the refrigerator compartment door 1400 is generally referred to as a 'home bar'. A separate chamber 1110 opened and closed by a separate door 1310 provided in the freezing chamber door 1300 is used for supercooling storage. The heating device 100 is located inside the separate chamber 1110. The heating device 100 is attached to the upper portion of the container 200 as described above to raise the temperature of the air on the container 200 to prevent the formation of ice crystals of the liquid. With such a configuration, the user can easily take out the container 200 storing the food containing the supercooled liquid or the supercooled liquid from the outside, without opening the freezing chamber door 1300.

A supercooling apparatus 1000 having a structure similar to a home bar has been described as an example of a supercooling apparatus 1000 in which a heating apparatus 100 is located inside a cooling chamber rather than a side of a freezing chamber door 1310 . The subcooling apparatus 1000 further includes a control unit (not shown) for controlling the operation of the heating apparatus 100 that heats the container 200 in which food or liquid stored in the cooling chamber is stored. When the temperature inside the cooling chamber rises and the operation of the heating apparatus 100 is unnecessary, the control unit (not shown) determines whether the operation of the heating apparatus 100 is unnecessary because the door 1310 is opened and the outside air is introduced The operation of the heating device 100 is stopped. The reason for the increase in the temperature inside the cooling chamber may be caused by frequent opening of the door 1310, provision of an icestray inside the cooling chamber, operation of the icestrae heater for ice making, And a defrost heater is operated for defrosting the defrosting device. In order to more reliably control the operation of the heating apparatus 100, sensing means (not shown) for sensing the temperature inside the cooling chamber or sensing means for sensing the opening and closing of the door 1310 (not shown) ).

Further, the food or liquid stored in the cooling chamber can be frozen when an impact is applied to the container 200 or when the heat applied by the heating device 100 to the container 200 is insufficient. The supercooling apparatus 1000 has an additional heating device (not shown) for defrosting frozen food or liquid. An additional heating device (not shown) is located around the container 200, and the operation of the additional heating device (not shown) is controlled by a control part (not shown). It is preferable that the control unit (not shown) is provided with sensing means (not shown) for sensing the freezing of food or liquid in the cooling chamber so as to reliably control the operation of the additional heating device. A sensing unit (not shown) may be a sensor such as a temperature sensor or an infrared sensor, and a control unit (not shown) determines whether an additional heating device (not shown) is operated .

In addition, the supercooling apparatus 1000 includes an input unit (not shown) that can be directly connected to the control unit (not shown) so that the user can directly input whether the heating apparatus 100 is operated or not. The input unit (not shown) is preferably located in the freezer compartment door 1310, but may be located in the refrigerator compartment door 1410. The input unit (not shown) is preferably a button provided at a position adjacent to the button for controlling other functions of the supercooling apparatus. When the user releases the supercooled state of the liquid stored in the supercooled state and inputs the command to release the supercooled state by pressing a button (not shown) when the user intends to consume the liquid in a slush state, the controller (not shown) And stops the operation of the heating device 100. [ Thereafter, the liquid stored in the container 200 rapidly begins to freeze, and after a lapse of a predetermined time, the ice crystal changes into a slush state in which a small amount of liquid coexists. Since the slush state has a unique texture corresponding to the middle of the liquid and the solid, the user can take foods and liquids having various mouthfeelings by using the supercooling device.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing an embodiment of a defrosting and line keeping apparatus according to the prior art,

2 is a circuit diagram showing a circuit configuration of the high voltage generator 3,

3 is a diagram showing a process in which ice-cold tuberculosis is generated in a liquid under cooling,

4 is a diagram illustrating a process for preventing the generation of ice TB applied to the supercooling apparatus according to the present invention,

FIG. 5 is a graph showing the supercooled state of water according to FIG. 4,

6 and 7 are views showing a first embodiment of a heating apparatus included in the supercooling apparatus of the present invention,

8 is a view showing a second embodiment of a heating apparatus included in the supercooling apparatus according to the present invention,

9 is a view showing one embodiment of a supercooling device according to the present invention.

Claims (20)

A cooling chamber provided with cold air; And a heating device attached to the container containing the liquid or the liquid containing the liquid and heating the air above the container to prevent freezing of water. The method according to claim 1, The supercooling apparatus according to any one of claims 1 to 3, characterized in that the heating device has a cylindrical body whose one surface is open. 3. The method of claim 2, Wherein the heating device has a heating wire for heating air in a cylindrical body. 3. The method of claim 2, The heating device further includes an inductor located above the cylindrical body, Wherein the cylindrical body is made of metal. 3. The method of claim 2, The supercooling device according to claim 1, wherein the heating device comprises a sealing member for sealing the container and the heating device on the lower part of the cylindrical main body. 6. The method of claim 5, Wherein the sealing member is a pressure-sensitive adhesive pad. The method according to claim 1, A door that opens and closes the cooling chamber; And And a separate chamber located in the door and being opened and closed by a portion of the door and being part of the cooling chamber. 8. The method of claim 7, Wherein the heating device is located in a separate chamber. The method according to claim 1, And a control unit for controlling the operation of the heating device. 10. The method of claim 9, And an input unit for receiving the power supply of the heating device. 10. The method of claim 9, A door that opens and closes the cooling chamber; And And sensing means for sensing opening and closing of the door, Wherein the control unit stops the operation of the heating device when the door is opened. 10. The method of claim 9, And temperature sensing means for sensing a temperature of a peripheral portion of the container of the cooling chamber, Wherein the control unit stops the operation of the heating device when the temperature of the peripheral portion of the container rises above the maximum ice crystal formation temperature. The method according to claim 1, Further comprising: an additional heating device for applying heat to the container during freezing of food or liquid stored in the container. 14. The method of claim 13, Sensing means for sensing whether the food or liquid stored in the container is frozen; And Further comprising a control unit for controlling the operation of the additional heating device with the information obtained from the sensing means. 15. The method according to any one of claims 1 to 14, The cooling chamber includes a refrigerating chamber and a freezing chamber, Wherein the heating device is located in the freezing chamber. A cooling chamber in which the cooling state is maintained at a sub-zero temperature or less; A container in which food or liquid containing liquid is stored in the cooling chamber; And a heating device for heating the air in the upper part of the container to prevent freezing of the liquid. A cooling chamber in which the cooling state is maintained at a sub-zero temperature or less; A container in which food or liquid containing liquid is stored in the cooling chamber; A heating device for heating the air in the upper part of the container to prevent icing of the liquid in the container; And And a controller for controlling the temperature of the heating device to a temperature of the image. 18. A method according to any one of claims 16 to 17, A door that opens and closes the cooling chamber; And Further comprising a separate chamber located in the door, which is opened and closed by a portion of the door and is part of the cooling chamber, Wherein the container and the heating device are located in separate chambers. 18. The method according to claim 16 or 17, Wherein the heating device is removably attachable to the container. 20. The method of claim 19, Wherein the heating device further includes a sealing member that seals a gap between the container and the heating device when the heating device is attached to the container at a lower portion of the heating device.

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