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WO2010079974A2 - Appareil de refroidissement - Google Patents

Appareil de refroidissement Download PDF

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Publication number
WO2010079974A2
WO2010079974A2 PCT/KR2010/000097 KR2010000097W WO2010079974A2 WO 2010079974 A2 WO2010079974 A2 WO 2010079974A2 KR 2010000097 W KR2010000097 W KR 2010000097W WO 2010079974 A2 WO2010079974 A2 WO 2010079974A2
Authority
WO
WIPO (PCT)
Prior art keywords
space
cooling
freezing
cold air
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2010/000097
Other languages
English (en)
Korean (ko)
Other versions
WO2010079974A3 (fr
Inventor
정원영
소재현
김철환
김주현
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020090108309A external-priority patent/KR101152006B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to US13/143,685 priority Critical patent/US9134059B2/en
Publication of WO2010079974A2 publication Critical patent/WO2010079974A2/fr
Publication of WO2010079974A3 publication Critical patent/WO2010079974A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/04—Doors; Covers with special compartments, e.g. butter conditioners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/023—Door in door constructions

Definitions

  • the present invention relates to a cooling device, and to a cooling device having a non-freezing device. More specifically, the cooling device which is provided in the cooling device to store food and beverages in a freeze-free state without particularly changing the configuration of a cooling device such as a conventional refrigerator, and in particular, in the case of a beverage, can easily prepare slush. Is about.
  • Subcooling means a phenomenon that no change occurs even when the melt or solid is cooled to below the phase transition temperature at equilibrium.
  • Each substance has a stable state corresponding to the temperature at that time, so that the temperature can be gradually changed so that members of the substance can keep up with the temperature change while maintaining the stable state at each temperature.
  • the member cannot afford to change to the stable state according to each temperature, so that the state remains stable at the starting point temperature, or a portion thereof changes to the state at the end point temperature.
  • This technique uses a supercooling phenomenon, which refers to a phenomenon in which the melt or solid does not change even when the melt or solid is cooled to below the phase transition temperature at equilibrium.
  • Such a technique includes the electrostatic field treatment method, the electrostatic field treatment apparatus, and the electrode used in these, which are Republic of Korea Patent Application Publication No. 2000-0011081.
  • the metal shelf 7 installed in the interior of the storehouse has a two-stage structure, and on each stage, objects for thawing or freshness maintenance and ripening of vegetables, meat and fish are mounted.
  • the metal shelf 7 is insulated from the bottom of the furnace by the insulator 9.
  • the high voltage generator 3 can generate direct current and alternating voltage 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 generator 3 is connected to the metal shelf 7 through the outer wall 5 and the heat insulator 2.
  • FIG. 2 is a circuit diagram showing the circuit configuration of the high voltage generator 3.
  • AC 100V is supplied to the primary side of the voltage regulating transformer 15.
  • Reference numeral 11 denotes a power supply lamp
  • reference numeral 19 denotes a lamp indicating an operating state.
  • the relay 14 operates when the above-mentioned door 6 is closed and the safety switch 13 is turned on. This state is indicated by the relay operation lamp 12.
  • the relay contact ( 14a, 14b, and 14c are closed, and an AC 100V power source 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 adjusting knob 15a is connected to the primary side of the secondary boosting transformer 17 of the voltage adjusting transformer 15.
  • the boosting voltage is boosted at a ratio of 1:50, for example.
  • One end O 1 of the secondary output of the boosting transformer 17 is connected to the metal shelf 7 insulated from the cold storage via the high voltage cable 4, and the other end O 2 of the output is earthed.
  • the outer wall 5 is earthed, even if the user of the cold storage 1 contacts the outer wall of the cold storage, electric shock will not occur.
  • the metal shelf 7 is exposed in the furnace in FIG. 1, since the metal shelf 7 needs to be kept insulated in the furnace, it is necessary to separate it from the walls of the furnace (air acts as an insulation). .
  • the object 8 protrudes from the metal shelf 7 and contacts the inner wall, current flows to the ground through the high wall.
  • Japanese Patent Laid-Open No. 2001-4260 has a supercooling control that can refrigerate the stored product at a temperature below the freezing point during subcooling operation with a temperature detecting means and a control means for controlling the inside of the insulated open-air storage to a predetermined temperature set point.
  • the refrigerator is starting.
  • by simply controlling the rotation speed of the cold air circulation fan to adjust the temperature in the insulation chamber there is no means to raise the temperature back to the set point in a short time when the temperature in the store drops below the set point. Therefore, when the time elapses while the temperature in the refrigerator drops below the set value, the storage items to be stored in the supercooled state are often frozen, and the frozen storage can not be thawed and stored again in the supercooled state. There is a problem that the stability to maintain is poor.
  • Korean Patent No. 10-850062 has a space for storing food and a storage compartment for cooling the space, and includes a cold air circulation space for indirectly cooling the food storage space, and an insulating layer for insulating the space between the cold air flow space and the space for supercooled food.
  • the refrigerator which can accommodate this is disclosed.
  • there is no configuration that can raise the temperature when the temperature in the refrigerator falls below the set temperature there is the same problem that the stability to maintain a freezing state likewise falls.
  • Japanese Patent Laid-Open No. 2008-267646 discloses a freezer compartment equipped with a temperature control means capable of continuously and stepwise controlling the temperature from 0 ° C to the temperature of a freezer temperature zone, a supercooling chamber arranged in the freezer compartment to receive cold air in the freezer compartment, and a subcooling chamber.
  • a refrigerator having a subcooling chamber having a control device for controlling a freezer compartment to maintain a supercooling state in which food stored in the refrigerator is not frozen at a temperature below a freezing point is disclosed.
  • the temperature in the subcooling chamber is controlled by controlling the temperature of the freezing chamber or the replacement chamber in which the subcooling chamber is installed, and the temperature change of the temperature in the subcooling chamber is suppressed by closing the subcooling chamber to the freezing chamber or the replacement chamber.
  • storing the food in the subcooled state by slowing the temperature fluctuation in the subcooling chamber by indirect cooling has a disadvantage in that it takes a long time until the food reaches the subcooled state.
  • there is still a problem such that there is no configuration that can raise the temperature when the temperature in the refrigerator falls below the set temperature, likewise, the stability of maintaining a freezing state is inferior.
  • An object of the present invention is to provide a cooling device having a flow path for cooling the lower space of the non-freezing device by introducing cold air from the cooling space to the non-freezing device.
  • the present invention is provided in the freezer compartment, refrigerator compartment, freezer compartment door or the refrigerator compartment door of the refrigerator, which is an existing cooling apparatus, without changing the configuration of the existing cooling apparatus having a non-freezing apparatus that can stably store food in a non-freezing state. It is an object to provide a cooling device.
  • the present invention is installed in a cooling space provided with cold air, a cooling space, a non-freezing device for storing food in a non-freezing state, a cooling passage in which cold air of the cooling space flows into the non-freezing device, and flows from the non-freezing device to the cooling space. It provides a cooling apparatus comprising a; discharge passage for discharging the.
  • a non-freezing apparatus provides a cooling apparatus including a cooling fan that generates a forced flow so that cold air circulates through the cooling passage and the discharge passage.
  • a freezing apparatus provides the cooling device characterized by including the partition which partitions a cooling flow path and a discharge flow path from each other.
  • a freezing apparatus provides the cooling apparatus provided with the damper provided on a cooling flow path and adjusting the inflow of cold air.
  • a freezing apparatus in still another aspect of the present invention, includes a lower space that maintains a temperature of an ice crystal generating zone and an upper space that is maintained at a temperature higher than the lower space and a rear space that is located behind the lower space and is cooled
  • the flow path provides a cooling device, characterized in that the cool air is introduced into the lower space through the rear space from the cooling device.
  • the non-freezing apparatus includes a lower space that maintains the temperature of the ice crystal generating zone and an upper space that is maintained at a temperature higher than the lower space and a rear space located behind the lower space, and discharged.
  • the flow path provides a cooling device comprising a discharge flow path through which the flow is directly discharged from the lower space to the cooling device and a discharge flow path discharged through the rear space in the lower space to the cooling device.
  • the present invention also includes a cooling space provided with cold air, a lower space which is installed in the cooling space and maintains the temperature of the ice crystal generating zone, and an upper space maintained at a temperature higher than the lower space and a rear space located behind the lower space. It provides a cooling device comprising a non-freezing device and a cooling passage circulating between the lower space and the rear space.
  • a non-freezing apparatus provides a cooling apparatus comprising a first discharge hole for discharging a flow from a lower space to a rear space.
  • a non-freezing apparatus provides a cooling apparatus comprising a second discharge hole for discharging a part of the discharged flow into a cooling space.
  • a non-freezing apparatus provides a cooling apparatus comprising a damper for controlling the inflow of cold air from the cooling space to the rear space.
  • the non-freezing apparatus provides a cooling apparatus, comprising a flow hole for introducing the cold air introduced through the damper into the lower space.
  • a non-freezing apparatus in still another aspect of the present invention, includes a second discharge hole for discharging a part of the discharged flow into a cooling space, and a partition is formed between the damper and the second discharge hole. to provide.
  • a non-freezing apparatus provides a cooling apparatus, comprising a flow fan installed on a flow hole to generate a forced flow.
  • a non-freezing apparatus in another aspect of the present invention, includes a first discharge hole for discharging a flow from a lower space to a rear space, and a partition is formed between the flow hole and the first discharge hole. to provide.
  • a non-freezing apparatus provides a cooling apparatus, comprising a third discharge hole for discharging a flow from the lower space to the cooling space.
  • a non-freezing device in still another aspect of the present invention, includes one or more partitions in a rear space, partitioned into two or more spaces by a partition, and a damper for introducing cold air from the cooling space into the at least one space and the introduced cold air.
  • a cooling device Provided is a cooling device.
  • the non-freezing apparatus is formed in the same space as the space in which the damper and the flow hole are formed, and the fourth discharge hole for discharging cold air from the lower space to the rear space when the damper is closed is formed.
  • a cooling device Provided is a cooling device.
  • a cooling apparatus wherein the fourth discharge hole is smaller in size than the first and second discharge holes.
  • a non-freezing apparatus provides a cooling apparatus comprising a fifth discharge hole for discharging cold air to the rear of the rear space.
  • a freezing apparatus provides the cooling apparatus characterized by the rib formed in the back surface for giving the space
  • the cooling device provided by the present invention can be installed in a freezer, a freezer compartment, a freezer door, a freezer door, and the like without detaching the configuration of the existing cooling device. Can be.
  • the cooling device provided by the present invention has a gap between the non-freezing device and the installation surface of the cooling device, the temperature of the cooling device installation surface has little effect on the non-freezing device, cold air can flow in and out between the intervals Food stored in a freezing device can be quickly cooled to freeze in a short time.
  • non-freezing apparatus provided in the cooling apparatus provided by the present invention may include a flow fan to generate forced flow so that the liquid stored in the container may have a temperature distribution as even as possible.
  • FIG. 1 is a view showing an embodiment of a thawing and freshness holding device according to the prior art
  • FIG. 2 is a circuit diagram showing a circuit configuration of the high voltage generator 3;
  • FIG. 3 is a diagram illustrating a supercooling process applied to a slush manufacturing container, a freezing device, and a cooling device according to the present invention
  • FIG. 4 is a view showing a process of preventing the formation of ice tuberculosis applied to the non-freezing apparatus according to the present invention
  • FIG. 5 is a view showing a cooling apparatus according to a first embodiment of the present invention
  • FIG. 6 is a view showing a cooling apparatus according to a second embodiment of the present invention.
  • FIG. 7 is a view showing a cooling apparatus according to a third embodiment of the present invention.
  • FIG. 8 is a view showing a cooling apparatus according to a fourth embodiment of the present invention.
  • FIG. 9 is a view showing a cooling apparatus according to a fifth embodiment of the present invention.
  • 17 is a view showing the rear space of the non-freezing apparatus according to the embodiment of the present invention.
  • FIG. 18 is a perspective view of a freezing device according to an embodiment of the present invention.
  • 19 is a view showing the rear of the non-freezing apparatus according to the embodiment of the present invention.
  • 20 and 21 are schematic views comparing heat transfer when a non-freezing device is installed in close contact with a cooling device and when spaced between the cooling devices is installed;
  • Figure 22 is a graph measuring the change in the internal temperature over time of installing the non-freezing device in close contact with the refrigerator door installed at intervals.
  • FIG. 3 is a diagram illustrating a supercooling process applied to a non-freezing device and a cooling device according to the present invention. As shown in FIG. 3, the container C containing the liquid L in the cooling space S is cooled.
  • the cooling temperature of the cooling space S is cooled, for example, from room temperature to 0 degrees (phase transition temperature of water) or below the phase transition temperature of the liquid L.
  • phase transition temperature of water phase transition temperature of water
  • the maximum ice crystal formation zone about -1 to -5 ° C
  • liquid (L) liquid
  • the container (C) may optionally include a lid (Ck), if included, the cold air of the cooling space directly flows in, or the surface of the liquid (L) or the temperature of the gas (Lg) on the surface The cooling by the cold air can be prevented to some extent.
  • Water droplets in the inner wall of the vessel or water vapor in the gas Lg may freeze as the cooling temperature reaches or passes the temperature of the maximum ice crystal generation zone of the liquid L.
  • condensation takes place at a portion where the surface Ls of the liquid L and the inner wall of the container C (which substantially coincide with the cooling temperature of the cooling space S) are formed and the condensed liquid L is iced. It can be formed into crystalline tuberculosis.
  • the supercooling device of the present invention applies or supplies energy (for example, thermal energy) to the container C and the liquid L stored in the cooling space S, so that the gas Lg and the liquid L By controlling the temperature, the liquid L is maintained in the freezing state, that is, the supercooling state, even below the phase transition temperature of the liquid.
  • the gas (Lg) is located in the upper layer portion of the liquid (L) in contact with the liquid (L), and is defined herein as the liquid upper layer (or the upper portion of the package), in addition to the gas (Lg), It may be an object containing an oil layer or plastic or other resin that may float in the liquid (L).
  • it is described as a liquid (L) for convenience, but may be applied to not only the liquid (L) but also general objects such as meat, fish, vegetables, fruits, and the like.
  • FIG. 4 is a view showing a process for preventing the formation of ice tuberculosis applied to the non-freezing apparatus according to the present invention.
  • the temperature of the gas Lg or the surface Ls of the liquid L is applied to be higher than the temperature of the maximum ice crystal generation zone of the liquid L. More preferably, the phase transition temperature of the liquid L is equal to or higher than that of the liquid L. . In addition, 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 surface Ls of the liquid L does not freeze even if it contacts the inner wall of the container C. More preferably, the phase transition temperature of the liquid L is equal to or higher than that.
  • the liquid L in the container C is maintained in the supercooled state at or below the phase transition temperature or below the maximum ice crystal generation temperature of the liquid L.
  • the liquid L which is an object
  • the liquid L may be subjected to a supercooling state simply by applying energy only to the upper portion of the container C. Since it may not be able to hold
  • the energy applied to the upper portion of the vessel C is relatively larger than the energy applied to the lower portion of the vessel C, so that the upper temperature of the vessel C can be maintained higher than the phase transition temperature or the temperature of the maximum ice crystal generation zone. .
  • Receptacles herein can include meat, vegetables, fruits, other foods, and the like, as well as liquids.
  • the energy applied to the present invention may be applied to thermal energy, electric or magnetic energy, ultrasonic energy, light energy and the like.
  • FIG. 5 is a view showing a cooling device according to a first embodiment of the present invention.
  • the cooling device 1000 is a device for providing cold air in the cooling spaces 1300 and 1400 using a cooling cycle.
  • FIG. 5 is a view illustrating a non-freezing device 2000 installed in a freezing chamber 1300 of a side by side refrigerator, which is an example of the cooling device 1000.
  • the cooling spaces 1300 and 1400 in the cooling apparatus 1000 are partitioned into a freezing compartment 1300 and a refrigerating compartment 1400 by the partition wall 1500.
  • Protruding support parts (not shown) are formed at both sides of the freezing compartment 1300, and hooks capable of fixing the non-freezing device 2000 are supported by both support parts (not shown) at both sides of the non-freezing device 2000.
  • a rib 2200 in shape is formed.
  • the non-freezing device 2000 is fixed in the freezing compartment 1300 by a hook-shaped rib 2200 and a support (not shown), and may be detachably installed from the freezing compartment 1300 similarly to other general shelves. Since power must be supplied to the non-freezing device 2000, a power connector (not shown) connected to each other for supplying power between the cooling device 1000 and the non-freezing device 2000 is preferably provided.
  • the power connector (not shown) may be a contact connector similar to a battery charger formed at a position corresponding to each other of the cooling device 1000 and the non-freezing device 2000 and transferring power through the contact, or the cooling device 1000.
  • the non-freezing device 2000 may be provided with a power transmission cable, respectively, and may be a port type connector composed of a male and female pair to be engaged with each other at an end of the power transmission cable.
  • the non-freezing device 2000 and the freezing compartment 1300 may be fixed to each other in a non-removable manner by using a screw, etc.
  • a separate power connector (not shown) is provided between the non-freezing device 2000 and the freezing compartment 1300. Instead, power may be supplied from the cooling device 1000 to the non-freezing device 2000 using a general wire.
  • the power connector (not shown) or the wire is a non-freezing device It is configured to transmit electricity in both directions to transfer information from the PCB (not shown), which is a control unit for controlling the operation of the operation (2000) to the external display (not shown) or the control unit (not shown) of the cooling device 1000. desirable.
  • FIG. 6 is a view showing a cooling apparatus according to a second embodiment of the present invention.
  • the cooling apparatus 1000 provides cooling air in the cooling spaces 1300 and 1400 by using a cooling cycle
  • FIG. 5 illustrates a non-freezing apparatus 2000 in the refrigerating chamber 1400 of the side by side refrigerator, which is an example of the cooling apparatus 1000.
  • the refrigerating chamber 1400 is generally maintained at a temperature at which it is impossible to freeze liquids up to an image or -2 ° C., when the freezing device 2000 is installed in the refrigerating chamber 1400 instead of the freezing chamber 1300, the freezing chamber 1300.
  • the cold air flow path, damper, etc. which can draw cold air from the non-freezing apparatus 2000 are calculated
  • the cooling device 1000 includes a cooling flow path guide duct 2300 that can introduce cold air into the non-freezing device 2000 through the partition 1500.
  • the guide duct 2300 may be directly connected to the cooling passage 2000 by the non-freezing apparatus 2000, and the cooling passage may provide cold air to the periphery of the non-freezing apparatus 2000. May be indirectly cooled and an end portion of the guide duct 2300 may be formed in proximity to the non-freezing apparatus 2000 and may not be directly connected to the non-freezing apparatus 2000.
  • a damper for adjusting the cold air flowing into the non-freezing device 2000 may be installed. The damper may be installed in the guide duct 2300 or may be installed at the non-freezing device 2000.
  • the non-freezing device 2000 is cooled by a first cooling method in which cold air in the cooling device 1000 indirectly cools the non-freezing device 2000.
  • the damper when the damper is opened, the cold air in the cooling device 1000 circulates around the non-freezing device 2000 and indirectly cools, while the cold air flows into the non-freezing device 2000 through the damper so that the cold air is directly inside the non-freezing device.
  • a second cooling scheme to circulate is performed together.
  • the guide duct 2300 may be formed inside the guide duct 2300 to cover the damper and be installed in the non-freezing apparatus 2000.
  • the non-freezing device 2000 When the non-freezing device 2000 is installed in the refrigerating compartment 1400, the non-freezing device 2000 may be detachably installed, and the non-freezing device 2000 may be installed on the wall of the refrigerating compartment 1400 by using screws or rivets. It can also be fixed.
  • FIG. 7 is a view showing a door provided in the cooling apparatus according to the third embodiment of the present invention.
  • the freezing apparatus 2000 is installed in the freezing chamber door 1100 of the cooling apparatus.
  • the freezer compartment door 1100 opens and closes the freezer compartment 1300, and the freezing unit 2000, the ice bank 1600, and the ice maker 1700 are sequentially installed in the door 1000 of the refrigerator from below.
  • the ice maker 1700 receives water and generates ice.
  • the ice made by the ice maker 1700 is automatically or manually introduced into the ice bank 1600.
  • the ice bank 1600 includes an outer casing 1610 for mounting to the freezer compartment door 1100 and a drawer 1620 that is retractably installed in the outer casing 1610.
  • the outer casing 1610 includes an opening at an upper portion thereof to allow the ice falling from the ice maker 1700 to be introduced. Ice generated in the ice maker 1700 falls downward by the rotation of an ice tray (not shown), and passes through an opening formed in the outer casing 1610 of the ice bank 1600 to draw a drawer of the ice bank 1600. 1620.
  • the non-freezing device 2000 includes a groove 2100 having a cross section larger than the cross section of the drawer 1620, so that when the ice falls into the drawer 1620, the drawer 1620 moves downward to reduce the impact.
  • FIG 8 is a view showing a cooling apparatus according to a fourth embodiment of the present invention.
  • the non-freezing apparatus 2000 is installed in the refrigerating compartment door 1200.
  • a cold air flow path guide duct 2300 should be included to introduce cold air into the non-freezing device 2000. Since the guide duct 2300 should not obstruct the movement of the freezer compartment door 1100 and the refrigerating compartment door 1200, it is preferable that the guide duct 2300 is installed below the non-freezing apparatus 2000.
  • the freezer compartment door 1100 has an opening 1110 through which the cold air can be introduced into the guide duct 2300, and the cold air flows into the guide duct 2300 through the opening 1110, and then the non-freezing device 2000.
  • a cooling path is formed. Dampers for controlling the introduction of cold air through the flow path may be installed in the opening 1110, or may be installed in the guide duct 2300.
  • a home bar (not shown) may be separately installed in the refrigerating compartment door 1200, and the relative positions of the home bar and the non-freezing device may be in any order.
  • the damper when the damper is closed, the non-freezing apparatus 2000 is cooled by a first cooling method in which cold air in the cooling apparatus 1000 indirectly cools the non-freezing apparatus 2000.
  • the damper when the damper is opened, the cold air in the cooling device 1000 circulates around the non-freezing device 2000 and indirectly cools, while the cold air flows into the non-freezing device 2000 through the damper so that the cold air is directly inside the non-freezing device.
  • a second cooling scheme to circulate is performed together.
  • the non-freezing device 2000 is installed in a groove bar shape in the doors 1100 and 1200 of the freezing compartment or the refrigerating compartment.
  • the non-freezing apparatus 2000 has the same exterior as the doors 1100 and 1200 of the freezing compartment or the refrigerating compartment, and the door of the non-freezing apparatus 2000 which forms a flat surface with the doors 1100 and 1200 of the freezing compartment or the refrigerating compartment. 200).
  • the interior spaces 100U and 100L of the non-freezing apparatus 2000 become storage spaces of the home bars installed in the freezer compartment or the refrigerator compartment doors 1100 and 1200, and the door 200 of the non-freezing apparatus 2000 is the door of the home bar. It can be said that it plays a role. Since the door 200 of the non-freezing device 2000 should serve as the door of the home bar, the heat insulator 202 is filled in the door 200. Meanwhile, the door of the cooling device 1000 in which the non-freezing device 2000 is installed in the groove bar shape may be the freezing compartment door 1100 or the refrigerating compartment door 1200.
  • a separate flow path for introducing cold air from the freezing compartment door 1100 should be formed, and the flow path guide structure for forming the flow path is illustrated in the fourth embodiment.
  • a structure similar to the opening 1110 (see FIG. 8) and the guide duct 2300 (see FIG. 8) may be used.
  • a damper (not shown) for controlling the introduction of cold air may be installed on the opening, inside the guide duct, or on a flow path through which cold air is introduced into the non-freezing device 2000 such as the non-freezing device 2000.
  • the non-freezing device 2000 when the non-freezing device 2000 is installed in the cooling device 1000 in the form of a home bar, when the non-freezing device 2000 is used, the freezing device 1100 or the freezer door 1200 does not need to be opened without the need for opening the freezing device 2000. Since only the door 200 of 2000 may be opened and used, outside air does not flow into the freezing chamber 1300 or the refrigerating chamber 1400. Therefore, since the temperature of the freezing chamber 1300 or the refrigerating chamber 1400 is not increased, not only the storage stability of food is increased but also the energy efficiency may be increased.
  • the door 200 of the non-freezing device 2000 is opened, only the area corresponding to the door 200 of the non-freezing device 2000 is exposed to the outside air, and the rear space of the non-freezing device 2000 is cooled as it is. Located in the cooling space of the device 1000, the temperature inside the freezing device 2000 does not sharply increase. Therefore, even when the door 200 of the non-freezing device 2000 is opened, food stored in the non-freezing device 2000 can be stably stored in the non-freezing state.
  • the non-freezing apparatus 2000 is separately installed in the home bars of the freezer compartment or the refrigerator compartment doors 1100 and 1200.
  • the freezer compartment or refrigerating compartment doors 1100 and 1200 include an accommodating space and a home bar door 1020 that opens and closes the accommodating space from the outside of the cooling apparatus 1000 like a general home bar.
  • the non-freezing device 2000 is installed in the storage space, and the shape of the non-freezing device 2000 is the same as that of the non-freezing device 2000 illustrated in FIGS. 12 to 19.
  • the home bar door 1020 of the cooling apparatus 1000 should be opened, and then the door 200 of the non-freezing apparatus 2000 should be opened.
  • the user has to open the home bar door 1020 and the door 200 of the non-freezing device 2000 twice, but the loss of cold air is the least, and the temperature of the internal space of the non-freezing device 2000 is minimal. It has the advantage that it can be stored stably without freezing without causing a sudden change in temperature due to the extremely small change.
  • the home bar itself may be installed in the refrigerating compartment door 1200 or may be installed in the freezer compartment door 1100.
  • the non-freezing apparatus when installed in the home bar formed in the refrigerating compartment door 1200 as described above, a separate flow path for introducing the cold air of the freezing compartment 1300 into the home bar formed in the refrigerating compartment is required.
  • the damper for regulating the cold air introduced into the non-freezing device 2000 is installed on the flow path for introducing the cold air to control the cold air introduced into the non-freezing device 2000.
  • the non-freezing apparatus 2000 includes a casing 100 defining an inner space in which a container is stored and a door 200 for opening and closing the casing 100, and the freezing point of the refrigerator, such as a freezer. It is installed in a cooling device for storing food at a temperature of.
  • the casing 100 distinguishes an external space, that is, a space in the cooling device 1000 in which the non-freezing device 2000 is installed and an internal space of the non-freezing device 2000, and forms an exterior of the non-freezing device 2000.
  • Casings 110, 120, and outer casings 110, 120 include a front outer casing 110 and a rear outer casing 120.
  • the front outer casing 110 constitutes the exterior of the front and bottom of the non-freezing apparatus
  • the rear outer casing 120 constitutes the exterior of the rear and top of the non-freezing apparatus.
  • the casing 100 allows a container for storing liquid to be stored with the top and the bottom positioned in different temperature zones, and more specifically, the bottom of the vessel is approximately the temperature range of the maximum ice crystal generation zone (about -1 ° C). ⁇ -5 ° C), and the top of the vessel is higher so that it can be located in the temperature range (about-1 ° C ⁇ 2 ° C) where ice crystals are not easily produced.
  • the casing 100 has a lower space 100L which is a temperature range (about -1 ° C to -5 ° C) of the maximum ice crystal generation zone and a temperature range (about -1 ° C to 2 ° C) where ice crystals are not easily generated
  • the upper space 100U and the lower space 100L are divided by the partition wall 140.
  • the casing 100 has, in the outer casing 110, a lower casing 130 defining the lower space 100L together with the partition 130 and an upper casing 150 defining the upper space 100U together with the partition 140. ).
  • a hole 140h is formed in the partition wall 140 so that the upper portion of the container passes through the partition wall 140 and is positioned in the upper space 100U.
  • the cooling fan is located behind the lower space 100L so that the liquid stored in the lower portion of the vessel located in the lower space 100L reaches the maximum temperature range of the ice crystal generation zone (about -1 ° C to -5 ° C) and becomes supercooled. 170 is installed, a lower heater (not shown) for adjusting the temperature of the lower space (100L) is also installed. An upper heater (not shown) is installed around the upper casing 150 to maintain the upper portion of the vessel located in the upper space 100U in a temperature range (about -1 ° C to 2 ° C) in which ice crystals are not easily produced.
  • the partition wall so as to prevent heat exchange between the upper space 100U and the lower space 100L as much as possible due to the forced flow generated by the cooling fan 170 between the upper space 100U and the lower space 100L having different temperatures.
  • the separation membrane 142 of an elastic material covering the hole 140h formed in the 140 is installed.
  • pressing the separation membrane 142 at the top and bottom of the separation membrane 142 and includes a fixing plate 144 that can be fixed to the partition wall 140 with screws or the like. It is preferable.
  • the lower portion of the outer casing (110, 120) is provided with a heat insulating material 112 for insulating the outer space and the lower space (100L), the upper portion of the outer casing (110, 120) and the outer space and the upper space (100U).
  • a heat insulator 122 is provided to insulate the heat.
  • a power switch 182, a display unit 184, and the like are installed between the front outer casing 110 and the heat insulating material 122, and a power switch 182 between the rear outer casing 120 and the heat insulating material 122.
  • the display unit 184, the upper and lower heaters (not shown), the PCB (not shown) for controlling the electrical equipment such as the flow fan 170 and the damper 190, the PCB installation unit 186 is installed.
  • the rear outer casing 120 mounts an opening 124 and a PCB mounting portion 186 for installing a PCB so that the PCB mounting portion 186 can be detached with the outer casings 110 and 120 assembled.
  • a PCB cover 124c may be further provided to cover the opening 124.
  • a partition is formed.
  • the partition wall is formed by overlapping the ribs 120r formed on the rear outer casing 120 and the ribs 140r protruding rearward from the lower case 130 with the partition walls 140 on the lower case 130.
  • the lower portion of the upper case 150 also has a shape corresponding to the partition wall 140 on the upper portion of the lower case 130, and has ribs 150r protruding rearward, and thus, ribs 120r formed on the outer casing 120.
  • the ribs 140r formed on the partition wall 140 and the ribs 150r formed on the upper case 150 are preferably overlapped to form partition walls of the rear space 100R.
  • the door 200 is installed at the front of the front outer casing 110 to open and close the lower space 100L.
  • the door 200 is fixed to the door panel 220 of the transparent or translucent material, the door casing 210 in the door casing 210, the door frame 230 and the door frame 230 to secure the door panel 220 together. It is mounted to the rear, and includes a gasket 240 for sealing between the door 200 and the front outer casing (110).
  • the non-freezing apparatus according to an embodiment of the present invention includes a plurality of door panels 220, and each door panel 220 is disposed between the door casing 210 and the door frame 230 with a gap therebetween. It is possible to form an air layer between each door panel 220.
  • the air layer not only compensates for the weak insulation of the door 200, but also prevents frost on the door 200, that is, the door panel 220.
  • the gasket 240 is made of an elastic material, and seals a gap between the door 100 and the front outer casing 110 so that the cooling spaces 1300 and 1400 and the non-freezing device 2000 are mounted. ) Prevents heat exchange between the inside and the inside. That is, leakage of cold air or heat can be prevented.
  • the rear space R is defined by the rear outer casing 120, the lower casing 130, and the upper casing 150, and the rear space R has a flow fan 170, a damper 190, and a lower heater. (Not shown) is installed, and in particular, the PCB installation unit 186 is detachably installed at the upper portion of the rear space R.
  • Lower heater (not shown), upper heater (not shown), lower sensor (not shown), upper sensor (not shown), flow fan 170, damper 190, switch 182 and display 184 are wires Is connected to the PCB.
  • the PCB is fixed in the PCB mounting portion 186, and then the PCB mounting portion 186 is fitted into a groove formed in the insulation 122 of the upper space through the opening 124 formed in the rear outer casing 120.
  • the wires connecting the PCB and each electrical component are connected to the PCB with an extra length long enough to lead the PCB installation portion 186 through the opening 124 of the rear outer casing 120. Therefore, when repairing or replacing the PCB, there is no need to separate the front outer casing 110 and the rear outer casing 120, there is an advantage that the maintenance, repair is convenient.
  • the lower casing 140 and the upper casing 150 are provided with grooves 146 and 156 for inserting electric wires connecting the PCB and the electrical equipment to the upper part of the lower casing 140 and the lower part of the upper casing 150, respectively. do.
  • the upper part of the lower casing 140 and the lower part of the upper casing 150 may overlap and be fixed to each other, and the separator 142 described above may be disposed between the upper part of the lower casing 140 and the lower part of the upper casing 150. Or fixed plate 144 is located.
  • the opening 124 is closed using the PCB cover 124c.
  • the opening 124 may be closed through the PCB cover 124c to increase energy efficiency, and to make the liquid subcooled more stably.
  • damper 170 is installed in the rear space 100R (shown in FIG. 12), and the cold air flows into the rear space 100R (shown in FIG. 12) from the cooling space in which the freezing device 2000 is installed. Adjust The damper 170 rotates with respect to the frame 172 and the frame 172 installed in the rear outer casing 120 and opens or closes the opening in the frame 172. Damper 170 is connected to the PCB by a wire, the PCB controls the opening / closing of the damper 170 according to the temperature information of the lower space (100L) measured by the sensor (not shown).
  • the non-freezing device 2000 When the damper is closed, the non-freezing device 2000 is cooled by a first cooling method in which cold air in the cooling device 1000 indirectly cools the non-freezing device 2000.
  • the damper when the damper is opened, the cold air in the cooling device 1000 circulates around the non-freezing device 2000 and indirectly cools, while the cold air flows into the non-freezing device 2000 through the damper so that the cold air is directly inside the non-freezing device.
  • a second cooling scheme to circulate is performed together. That is, while the non-freezing device 2000 is cooled in the cooling device 2000 in the first cooling method, the second cooling method is selectively performed along with the first cooling method according to whether the damper 170 is opened or closed. That is, when the damper 170 is closed, the non-freezing device 2000 is cooled by the first cooling method, and when the damper 170 is opened, it is cooled by the first cooling method and the second cooling method.
  • FIG 17 is a view showing the rear space of the non-freezing apparatus according to an embodiment of the present invention
  • Figure 18 is a perspective view of the non-freezing apparatus according to an embodiment of the present invention.
  • the rear space 100R is provided with a damper 190 to adjust the inflow of cold air.
  • the flow fan 170 installed on the rear surface of the lower case 130 generates a forced flow, so that the air introduced into the rear space 100R flows into the lower space 100L, and the air in the lower space 100L again. It can be discharged to the rear space 100R.
  • a discharge grill 172 is formed so that the flow generated by the flow fan 170 flows, from the rear space 100R to the lower space 100U. Form a flowing flow path.
  • first discharge holes 310a, 310b, 310c, and 310d for discharging flow from the lower space 100U to the rear space 100R are formed on the rear surface of the lower case 130.
  • the first discharge holes 310 are formed at both side ends, and a total of four first discharge holes 310a, 310b, 310c, and 310d are formed, two up and down.
  • the flow generated by the flow fan 170 flows into the lower space 100L through the discharge grill 172, and then is re-discharged to the first discharge holes 310a, 310b, 310c, and 310d located at both ends.
  • the cooling passage is naturally formed in the lower space 100L.
  • a second discharge hole 320 is formed below the lower space 100L to discharge the flow discharged from the first discharge holes 310a, 310b, 310c, and 310d into the cooling space.
  • the flow discharged through the first discharge hole (310a, 310b, 310c, 310d) flows back to the center portion where the flow fan 170 is located to flow back into the lower space (100U) to prevent the flow fan ( Partition walls 330a and 330b are installed between the 170 and the first discharge holes 310a, 310b, 310c and 310d.
  • a part of the flow that cools the liquid stored in the container through the first discharge holes 310a, 310b, 310c, and 310d and cools the liquid stored in the container is located in the lower portion of the lower space 100L ( It is discharged directly to the cooling space through the 340.
  • the third discharge holes 340 are preferably formed in the same number on the left and right sides to form a symmetric flow path.
  • the lower case 130 further includes fourth discharge holes 350a and 350b positioned inside the partition walls 330a and 330b. That is, the fourth discharge holes 350a and 350b are formed with the first discharge holes 310a, 310b, 310c and 310d and the second discharge holes 320a and 320b and the partition walls 330a and 330b interposed therebetween.
  • the flow fan 170 When the flow fan 170 is operated while the damper 190 is closed, the flow discharged from the rear space 100R through the discharge grill 172 to the lower space 100L circulates in the lower space 100L. The liquid is discharged to the rear space 100R through the fourth discharge holes 350a and 350b again.
  • the discharge grill 172 and the fourth discharge holes 350a and 350a are opened in the state where the damper 190 is closed. Through this, a circulating flow is formed only between the lower space 100L and the rear space 100R, and cold air is no longer introduced from the external cooling space.
  • a drip tray 116 is formed at a portion where the door 200 and the front outer case 110 contact each other.
  • the drip tray 126 freezes dew or moisture formed in the container on the door 200 or the front outer case 110 so that a gap occurs without the door 200 and the outer case 110 contacting each other properly. Intrusion is prevented from dropping the temperature of the lower space 100L. That is, dew formed on the door 200 or the outer case 110 is lowered and collected into the drip tray 116, whereby frost is generated or water is frozen on the lower surface of the outer case 110 in contact with the door 200. To prevent them.
  • FIG. 19 is a view showing the rear of the non-freezing apparatus according to an embodiment of the present invention.
  • Fifth discharge holes 360a, 360b, and 360c for discharging the flow from the rear space 100R to the cooling space are formed at the rear center side of the rear outer case 120. Some of the cold air introduced into the rear space 100R from the cooling space through the damper 190 is not introduced into the lower space 100L through the discharge grill 172 but through the fifth discharge holes 360a, 360b, and 360c. Exit back to the cooling space.
  • Rib 125 is to give a distance between the rear surface and the mounting surface of the rear outer case 120, when the non-freezing device 2000 is installed in the cooling device 1000, as in the embodiment of the present invention, the cooling device
  • the inner surface of the 1000 and the rear outer case 120 serves to maintain the gap between the back.
  • the inner surface of the cooling apparatus 1000 is meant to include the inner surfaces of the freezer compartment door 1100 and the refrigerating compartment door 1200.
  • the first case of the rear outer case 120 is formed.
  • a separate rib 126 is formed to surround the discharge holes 360a, 360b, and 360c.
  • the separate ribs 126 are formed to surround the remaining three directions except for the lower portions of the fifth discharge holes 360a, 360b, and 360c, so that the flow discharged through the fifth discharge holes 360a, 360b, and 360c is naturally free. Guided below the freezing device 2000.
  • 20 and 21 are schematic views comparing heat transfer when the non-freezing apparatus is installed in close contact with the cooling apparatus and when the non-freezing apparatus is installed at an interval between the cooling apparatuses.
  • FIG. 20 when the non-freezing device 2000 is in close contact with the cooling device 1000, the temperature inside the cooling device 1000 and the surface where the non-freezing device 2000 comes into contact with each other exchange heat to each other.
  • the inner surface of 1000 and the contact surface of the non-freezing device 2000 have the same temperature.
  • the non-freezing apparatus 2000 may be maintained at a temperature separate from the inner surface of the cooling apparatus 1000.
  • the influence of the outside air outside the cooling device on the non-freezing device 2000 can be reduced.
  • the amount of heat generated by the upper and lower heaters (not shown) installed in the non-freezing apparatus 2000 can be reduced, thereby freezing the apparatus.
  • the energy efficiency of 2000 can be improved.
  • the heater is operated to maintain the temperature inside the non-freezing device 2000 in a predetermined temperature range.
  • the heat generated by the heater is used to raise the temperature of the inner surface of the cooling apparatus 1000 in close contact with the non-freezing apparatus 2000. Therefore, the installation of the non-freezing device 2000 at intervals from the cooling device 1000 may quickly make the liquid in a supercooled state, and further increase the energy efficiency of the non-freezing device 2000.
  • FIG. 22 is a graph measuring the change in the internal temperature with time of installing the non-freezing device in close contact with the refrigerator door and at intervals. As shown in the graph, when the non-freezing device 2000 is installed at a distance from the cooling device 1000 (when the adhesion is low), it can be seen that the cooling is faster.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)

Abstract

La présente invention concerne un appareil de refroidissement pourvu d'un passage permettant d'introduire l'air réfrigérant provenant d'un espace de refroidissement dans un appareil de non congélation afin de refroidir un espace inférieur de l'appareil de non congélation. L'appareil de refroidissement comprend un espace de refroidissement alimenté en air réfrigérant, un appareil de non congélation placé dans l'espace de refroidissement et stockant les aliments à l'état de non congélation, un passage de refroidissement pour introduire dans l'appareil de non congélation l'air réfrigérant provenant de l'espace de refroidissement et un passage d'évacuation pour évacuer l'écoulement de l'appareil de non congélation à l'espace de refroidissement.
PCT/KR2010/000097 2009-01-08 2010-01-07 Appareil de refroidissement Ceased WO2010079974A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/143,685 US9134059B2 (en) 2009-01-08 2010-01-07 Supercooling non-freezing compartment for refrigerator appliance

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20090001668 2009-01-08
KR10-2009-0001668 2009-01-08
KR10-2009-0108309 2009-11-10
KR1020090108309A KR101152006B1 (ko) 2009-01-08 2009-11-10 냉각 장치

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WO2010079974A2 true WO2010079974A2 (fr) 2010-07-15
WO2010079974A3 WO2010079974A3 (fr) 2011-06-23

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KR20070075670A (ko) * 2006-01-14 2007-07-24 삼성전자주식회사 냉장고 및 그 제어방법
KR101052782B1 (ko) * 2007-04-06 2011-07-29 삼성전자주식회사 냉장고 및 그 제어방법
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