WO2014010771A1 - Congélateur à sur-refroidissement - Google Patents

Congélateur à sur-refroidissement Download PDF

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Publication number
WO2014010771A1
WO2014010771A1 PCT/KR2012/005606 KR2012005606W WO2014010771A1 WO 2014010771 A1 WO2014010771 A1 WO 2014010771A1 KR 2012005606 W KR2012005606 W KR 2012005606W WO 2014010771 A1 WO2014010771 A1 WO 2014010771A1
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WO
WIPO (PCT)
Prior art keywords
cold air
cooling chamber
cooling
temperature
unit
Prior art date
Application number
PCT/KR2012/005606
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English (en)
Korean (ko)
Inventor
김태호
안병선
Original Assignee
수퍼쿨러 주식회사
수퍼쿨러 유에스에이 인코포레이티드
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.)
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Publication date
Application filed by 수퍼쿨러 주식회사, 수퍼쿨러 유에스에이 인코포레이티드 filed Critical 수퍼쿨러 주식회사
Priority to PCT/KR2012/005606 priority Critical patent/WO2014010771A1/fr
Priority to CN201310269200.2A priority patent/CN103575014B/zh
Publication of WO2014010771A1 publication Critical patent/WO2014010771A1/fr

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    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments

Definitions

  • the present invention relates to a subcooled freezer for supercooling liquid beverages such as soft drinks and alcoholic beverages.
  • Supercooling refers to a phenomenon in which the melt or solid does not cause a change even when the phase transition at equilibrium is cooled below the temperature. For example, if water is gradually cooled, it will not temporarily solidify even if it reaches a temperature of 0 ° C or lower. However, when the object is in the supercooled state, it becomes a kind of quasi-stable state, and even the slightest stimulus breaks the unstable equilibrium state and is likely to move to a more stable state. That is, when a small piece of material is added to the supercooled liquid or the liquid is suddenly shaken, the liquid starts to solidify immediately and the temperature of the liquid rises to the freezing point, thereby maintaining a stable equilibrium at that temperature.
  • a temperature range in which a liquid beverage can be supercooled as a liquid for example, -10 ° C to -18 ° C for an alcoholic drink.
  • the temperature of the liquid beverage is lower than the aforementioned limit temperature, it is frozen in the freezer. Therefore, in order to appropriately supercool all the liquid drinks accommodated in the some container, it is necessary to make the temperature in a freezer uniform within the said limit temperature.
  • the supercooled liquid beverage is susceptible to changes in temperature, and even if the temperature rises only a few degrees, it becomes difficult to freeze the sherbet state when the cup or the like is poured. Therefore, there is a need to stabilize the temperature by suppressing the temperature change in the freezer.
  • the conventional technology has a problem that the temperature uniformity and temperature stabilization of the freezer is not properly achieved when the actual product is commercialized, it is difficult to substantially overcool the liquid beverage to maintain its state for a long time, and a solution for this is urgently required.
  • the present invention provides a subcooled freezer configured to stably and uniformly maintain a freezer internal temperature according to a subcooled temperature of a liquid beverage.
  • the apparatus includes a main body having a cooling chamber for accommodating a container containing a liquid beverage and storing it in a supercooled state, a door for opening and closing an open front surface of the main body, and arranged in multiple stages at intervals in the cooling chamber.
  • a plurality of shelves to be placed, a cooling unit for cooling the air in the cooling chamber, a cold air supply unit for circulating the air cooled by the cooling unit into the cooling chamber, the temperature of the cold air supplied from the cold air supply unit to the liquid beverage Includes a cold air control unit for controlling in the supercooling temperature range,
  • the cold air controller calculates a detection value of the temperature sensor and a temperature sensor installed at the cold air supply unit to detect the temperature of the cooling chamber, the mixing unit for supplying the air inside the cooling chamber to the cold air supply unit and mixed with cold if necessary.
  • the control unit may include a controller for controlling the cooling unit, the cold air supply unit, and the mixing unit so that the internal temperature of the cooling chamber is within a preset temperature range.
  • the cooling unit is installed in the upper body of the heat exchanger to cool the air through heat exchange, the heat exchanger is installed inside the cooling duct to connect the inside of the cooling chamber and the cold air supply, the cooling duct is installed on one side of the cooling chamber air
  • a suction blower for sucking may include a compressor and a condenser for circulating the refrigerant to the heat exchanger.
  • the cold air supply unit is provided on the upper side of the supply duct extending up and down along the inner surface of the cooling chamber, a supply blower for blowing cold air into the supply duct, the blower is formed on the front of the supply duct It may include a plurality of vent holes for discharging the cold air to the cooling chamber.
  • the mixing unit may include a mixing blower installed between the upper end of the supply duct and the cooling chamber to blow air inside the cooling chamber into the supply duct.
  • the mixing unit is installed so that the upper end of the supply duct faces the cooling chamber and the cooling duct at the same time, the supply blower is installed to face the cooling chamber and the cooling duct at the same time and blows the cooling duct of the cooling duct and the air inside the cooling chamber to the supply duct.
  • the supply blower is installed to face the cooling chamber and the cooling duct at the same time and blows the cooling duct of the cooling duct and the air inside the cooling chamber to the supply duct.
  • the vent hole may be formed to be dispersed in the front surface of the supply duct in a position corresponding to the upper space of each shelf.
  • the vent may be formed to increase the number or size of holes formed from the lower portion of the cooling chamber toward the upper portion.
  • the frame may be installed in at least four corners of the main body in a vertical direction, and a support member supporting the shelf on the frame may be installed, and a vibration preventing material may be installed between the support member and the shelf for shock buffer. .
  • the apparatus may further include a curtain which is disposed at least one or more continuously in a vertical direction to the front of the cooling chamber to block the front of the cooling chamber.
  • the apparatus may further include an inner door disposed at a position corresponding to each shelf on a front surface of the cooling chamber and rotatably installed with respect to the cooling chamber to open and close the cooling chamber.
  • the apparatus may further include an air curtain unit installed on the shelf to inject air in a vertical direction to the front of the cooling chamber to block the front of the cooling chamber.
  • the air curtain unit may include an air blower installed at the front end of the shelf and disposed at the front of the cooling chamber to suck the cold air inside the cooling chamber and discharge the cold air in the vertical direction, and a power supply unit for supplying power to the air blower.
  • the air blower may be extended along the front end of the shelf, and a suction inlet for suctioning air may be installed at a lower portion thereof, and a discharge hole for discharging suctioned air may be installed in a vertical direction.
  • the power supply unit may include a connection connector installed on the shelf to receive power, and a supply connector installed in the cooling chamber to receive power and coupled with the connection connector according to the movement of the shelf.
  • the cold air control unit may further include a door sensor for detecting opening and closing of the door, and the controller may be configured to stop driving of the cooling unit, the cold air supply unit, and the mixing unit when the door is opened according to the output value of the door sensor.
  • the cold air control unit may be configured to operate the air curtain unit when the door or the inner door is opened.
  • the cold air controller may further include a heater installed in the heat exchanger or the supply duct to heat the cold air, and the controller may control the heater so that the temperature inside the cooling chamber is within a preset temperature range.
  • the cold air controller may further include at least one heat pipe extending in the vertical direction in the supply duct and spaced apart from each other.
  • the device may be a structure in which the internal temperature of the cooling chamber is adjusted to a range of 0 ⁇ -20 °C.
  • the temperature in the cooling chamber can be kept more uniform and stable in accordance with the supercooling temperature of the liquid beverage, so that it can be stored for a long time.
  • FIG. 1 is a schematic side cross-sectional view showing a subcooled freezer according to the first embodiment.
  • FIG. 2 is a schematic front view illustrating some components of a subcooled freezer according to the embodiment of FIG. 1.
  • Figure 3 is a schematic side view showing the structure of the air curtain portion of the subcooled freezer according to the first embodiment.
  • FIG. 4 is a schematic plan view showing the air curtain part structure of the subcooling freezer according to the first embodiment.
  • FIG. 5 is a schematic block diagram showing a control structure of a supercooled freezer according to the first embodiment.
  • FIG. 6 is a schematic side view illustrating a subcooling freezer according to a second embodiment.
  • FIG. 1 shows a subcooled freezer according to the present embodiment.
  • the freezer 100 of the exemplary embodiment includes a main body 10 having a cooling chamber 12 for receiving a container P containing a liquid beverage and storing the same in a supercooled state, and the main body 10.
  • Door 14 for opening and closing the open front of the plurality, a plurality of shelves 16 are arranged in multiple stages at intervals in the cooling chamber 12, the cooling to cool the air inside the cooling chamber 12, The unit 20, the cold air supply unit 30 for circulating the air cooled by the cooling unit 20 into the cooling chamber 12, and a portion of the air in the cooling chamber 12 when the cold air supply unit ( And a cold air controller 40 for controlling the temperature of the cold air supplied from the cold air supply unit 30 to a subcool temperature range of the liquid beverage.
  • the main body 10 is formed of a rectangular insulation structure in which the front surface is opened and the other side is blocked.
  • the front surface of the main body 10 is rotatably provided with a door 14 for opening and closing the opened front surface.
  • the door 14 has a heat insulating structure, and a window made of a transparent material may be added to the front side to check the inside thereof.
  • the interior of the main body 10 forms a cooling chamber 12 which is a space in which a container is accommodated.
  • a plurality of shelves 16 are arranged at intervals along the vertical direction so that the container can be placed.
  • the vertical direction means a vertical direction with respect to the ground when the freezer 100 is placed on the ground.
  • Each shelf 16 includes, for example, plastic bottles, cans, cartons and bottles containing liquid beverages such as juice, coffee, black tea, tea, oolong tea, milk, yogurt drinks, mineral water, carbonated drinks and alcoholic beverages, and the like.
  • a plurality of various containers P are stacked. That is, when accommodating each container P in the cooling chamber 12, the said container P is arrange
  • the container P is taken out from the freezer and subjected to vibration, or according to a cup or the like, the liquid beverage is instantly frozen in a sherbet state.
  • the solidification point of alcoholic beverages is about -10 degreeC--18 degreeC
  • the solidification point of liquid drinks, such as juice, other than alcoholic beverage is about -8 degreeC-0 degreeC.
  • the temperature in the cooling chamber 12 is maintained at predetermined temperature within the range of the solidification point according to the kind of liquid drink in this way.
  • the shelf 16 is composed of a plate structure in the form of a plane.
  • a plurality of guide rails 13 may be arranged on the surface of the shelf 16 so that cold air flows.
  • the guide rail 13 protrudes upward at intervals, and the groove between the guide rail and the guide rail serves as a passage through which cold air flows.
  • the container is loaded on the guide rail 13 protruding from the shelf 16 and the groove between the guide rail and the guide rail maintains a passage.
  • the cold air from the cold air supply part flows more smoothly through the passage between the guide rail and the guide rail, and thus it is possible to cool each container placed on the shelf more quickly and uniformly.
  • a pair of shelf pillars 18 are provided on the front and rear sides facing the inside of the cooling chamber 12 at intervals in front and rear.
  • Each shelf support member 17 is supported by the inner surface of the cooling chamber 12 via the shelf pillar 18.
  • Each shelf 16 is supported by the shelf support member 17 provided in the shelf pillar 18.
  • the container (P) is present in the supercooled state on the shelf, the liquid drink is frozen when an external impact is applied.
  • the shelf receiving member 17 is installed on the pillar 18 provided in the main body so as to secure a certain bearing force on the shelf.
  • the pillars 18 are installed at corners of the main body forming a square structure.
  • the shelf support member 17 which supports a shelf is installed in each pillar 18, and can support a shelf more stably. Thus, shaking of the shelf can be minimized.
  • the upper end of the shelf receiving member 17 is further provided with a vibration preventing material 19 for cushioning the impact between the shelf.
  • the anti-vibration material 19 may be made of, for example, an impact resistant material such as rubber, silicone, or gel.
  • each shelf 16 is seated on the shelf receiving member 17 with the vibration preventing member 19 therebetween, and vibrations of the freezer main body 10 may cause the shelf receiving member 17 and the shelf 16 to fall apart. Transmission to the container P is suppressed through.
  • the shelf receiving member 17 can be detachably installed on the pillar 18 of the cooling chamber 12, so that its position can be adjusted along the vertical direction of the cooling chamber 12 if necessary.
  • the mounting hole 15 is formed at intervals so that the shelf receiving member 17 is fitted in the column 18 along the vertical direction. Accordingly, by inserting the shelf support member 17 in the mounting hole 15 on one side along the vertical direction of the pillar 18, the shelf support member 17 can be moved to fix the shelf at a desired position.
  • the container P containing the liquid beverage is stored in the cooling chamber 12 in a supercooled state that maintains freezing at a temperature below the freezing point of the liquid beverage.
  • the internal temperature of the cooling chamber 12 is maintained in a controlled range of approximately 0 to -20 ° C in accordance with the subcooling conditions of the liquid beverage.
  • the cooling unit 20 is to reduce the temperature inside the cooling chamber 12, the heat exchanger 21 is installed at the lower end of the main body 10 to cool the air, and the heat exchanger 21 is installed inside And a cooling duct 22 connecting the inside of the cooling chamber 12 and the cold air supply unit 30, and a suction blower 23 installed at one side of the cooling duct 22 to suck air in the cooling chamber 12. do.
  • the cooling duct 22 is disposed on the ceiling side of the cooling chamber 12.
  • the cooling duct 22 has an inlet for sucking air in the cooling chamber 12 and an outlet for discharging cold air to the outside.
  • the heat exchanger 21 for cooling the air inside the cooling chamber 12 is installed in the cooling duct 22.
  • the air introduced into the cooling duct 22 through the inlet is cooled while passing through the heat exchanger 21 and discharged to the cold through the outlet.
  • the inlet of the cooling duct 22 is disposed obliquely downward in front of the cooling chamber 12 in which the door 14 is located.
  • the outlet of the cooling duct 22 is disposed downward in the cooling chamber 12 opposite to the inlet.
  • Suction blowers 23 are installed at the inlet of the cooling duct 22.
  • the suction blower 23 has a cylindrical fan that extends long, one side is formed with a suction port for sucking air, the other side is formed with a discharge port for discharging the air.
  • the suction blower 23 is disposed such that the suction port faces the inside of the cooling chamber 12 and the discharge port faces the inside of the cooling duct 22.
  • the suction blower 23 sucks air in the cooling chamber 12 into the cooling duct 22.
  • the suction blower 23 is used as a component that sucks air through the inlet of the cooling duct, the mixing of the incoming and outgoing air is prevented and the cold air flows in one direction so that it can be accurately and consistently controlled and maintained. Will be.
  • the heat exchanger 21 cools the surrounding air by a cooling action of absorbing the latent heat of the surroundings while evaporating the refrigerant in the cooling duct 22.
  • the heat exchanger 21 is connected to the cooling apparatus 28 arrange
  • the cooling apparatus 28 has the compressor 24, the condenser 25, an expansion valve, etc., and is accommodated in the machine room 27 arrange
  • the cold air supply unit 30 is connected to the outlet of the cooling duct 22 to supply the cooled cold air through the heat exchanger 21 into the cooling chamber 12.
  • the cold air supply unit 30 is installed at an upper end of the cold air supply duct 31 installed in the cooling chamber 12 and the cold air supply duct 31 connected to the cooling duct 22 to supply cold air. It includes a supply blower 32 for blowing air to the duct 31, a plurality of vent holes 33 formed on the front surface of the cold air supply duct 31 for discharging the cold air.
  • the cold air supply duct 31 is installed in the up and down direction on the inner surface of the cooling chamber 12.
  • the cold air supply duct 31 is not limited to the inner side of the cooling chamber 12 and may be installed on opposite side surfaces thereof.
  • the cold air supply duct 31 has a plurality of vent holes 33 for blowing cold air into the cooling chamber 12 on the front surface, that is, the surface facing the cooling chamber 12 along the longitudinal direction of the cold air supply duct 31. Array is formed.
  • the vent hole 33 is formed at a position corresponding to the space above the shelf 16 with respect to each shelf 16 arranged up and down. That is, when the container is placed on the shelf 16, the vent 33 is biased upwardly to face the upper side of the container.
  • the vent 33 may be uniformly distributed between both side surfaces of the cooling chamber 12 in the width direction.
  • positioned corresponding to the shelf 16 of each upper and lower stage is set so that the number of single tracks and hole diameter of an upper side may reduce.
  • the cold air transferred through the cold air supply duct 31 may be discharged in a substantially uniform amount through the air vents 33 formed corresponding to the shelves 16 along the vertical direction of the cooling chamber 12.
  • the ventilation hole 33 may be set so that the number which faces the space of the upper side of the lower single recording shelf 16 may be small, for example, when the passage cross-sectional area of the cold air supply duct 31 is small.
  • Cold air is blown into the cooling chamber 12 through the vent hole 33 to supercool the liquid beverage in the container loaded on each shelf 16 of the cooling chamber 12.
  • the cold air blown into the cooling chamber 12 is sucked into the cooling duct through the inlet of the cooling duct 22 as described above after passing through the container.
  • the cold air supply duct 31 faces the door 14, that is, is located relatively far from the door 14.
  • the mixed cold air supplied to the cooling chamber 12 from each vent hole 33 of the cold air supply duct 31 arranged in this way abuts the inner surface of the door 14 and is operated by the suction blower 23.
  • the inside of the cooling chamber 12 is lifted up and sucked into the inlet of the cooling duct 22.
  • the sucked mixed cold air (air) passes through the cooling duct 22 and the cold air supply duct 31 in order, and is supplied to the cooling chamber 12 from each of the vent holes 33 of the cold air supply duct 31.
  • the mixed cold air supplied to the cooling chamber 12 is provided for cooling the liquid beverage. In a freezer, such circulation of air is carried out constantly in one direction.
  • the supply blower 32 is installed between the outlet of the cooling duct 22 and the lower end of the cold air supply duct 31 to pass through the cooling duct 22 to eject the cooled cold air toward the cold air supply duct 31.
  • the supply blower 32 has a cylindrical fan extending long, one side is formed with a suction port for sucking air, the other side is formed with a discharge port for discharging the air.
  • the supply blower 32 is disposed such that the suction port faces the cooling duct 22 and the discharge port faces the cold air supply duct 31.
  • the supply blower 32 transfers cold air from the cooling duct to the cold air supply duct 31.
  • the supply blower 32 is used as a component for supplying cold air to the cold air supply duct 31 in the present embodiment, the phenomenon of preventing the inflow of cold air or air inside the cooling chamber in the reverse direction and adjusting the speed of the blower supplies the supply amount. Can be controlled and maintained accurately and consistently. In addition, it is possible to increase the blowing area and to reduce the noise during the discharge of cold air.
  • the cooling duct 22, the heat exchanger 21, and the suction blower 23 function as cooling means for cooling a part of the air in the cooling chamber 12.
  • the apparatus mixes the air inside the cooling chamber 12 with cold air through the cold air control unit 40 in the process of supplying the cold air of the cooling duct 22 to the cold air supply duct 31 to adjust the temperature of the cold air to the liquid beverage. Control over the subcooling temperature range.
  • the cold air control unit 40 is a mixing unit for supplying the air inside the cooling chamber 12 to the cold air supply unit 30 and mixed with cold if necessary, and installed in the cold air supply duct 31, the cooling chamber 12
  • the cooling unit 20 and the cold air supply unit 30 and the temperature sensor 41 for detecting a temperature, the calculated value of the temperature sensor 41 is calculated so that the temperature inside the cooling chamber 12 is within a preset temperature range.
  • a controller for controlling the mixing section (see 42 in FIG. 5).
  • the mixing unit is installed between the upper end of the cold air supply duct 31 and the cooling chamber 12 to blow the air in the cooling chamber 12 to the cold air supply duct 31 It includes.
  • the size of the upper end of the cold air supply duct 31 is sufficiently larger than the outlet of the cooling duct 22 and extends toward the cooling chamber through the outlet of the cooling duct 22.
  • the upper end portion of the cold air supply duct 31 communicates with the outlet of the cooling duct 22 and the remaining portion communicates with the cooling chamber 12 outside the cooling duct.
  • the mixing blower 43 is installed between the cooling chamber 12 and the cold air supply duct 31 to introduce the air in the cooling chamber 12 into the cold air supply duct 31.
  • the mixing blower 43 has a cylindrical fan extending long, one side is formed with a suction port for intake air, the other side is formed with a discharge port for discharging the air.
  • the suction port of the mixing blower 43 faces the inside of the cooling chamber 12, and the discharge port faces the inside of the cold air supply duct 31.
  • the cold air cooled through the cooling duct 22 is blown into the cold air supply duct 31 through the supply blower 32, and some of the air in the cooling chamber 12 is not directly passed through the cooling duct 22. It is sucked into the cold air supply duct 31 through the mixing blower 43. Therefore, the cold air passing through the heat exchanger 21 and the air inside the cooling chamber 12 are mixed in the cold air supply duct 31, and the mixed cold air is supplied into the cooling chamber 12 through the cold air supply duct 31. do.
  • the ratio between the amount of cold air sucked through the suction blower 23 and introduced into the supply duct through the supply blower 32 and the amount of air introduced into the feed duct through the mixing blower 43 is not particularly limited.
  • supercooling can be performed more reliably about the liquid beverage in each container P. As shown in FIG.
  • the cooler and the air inside the storage compartment may be mixed at a more accurate flow rate, thereby controlling the temperature control more precisely and precisely to prevent sudden changes in temperature.
  • the cold air control unit 40 controls the mixing blower 43 according to the temperature inside the cooling chamber 12 to adjust the temperature inside the cooling chamber 12.
  • the temperature sensor 41 is installed at one side of the cold air supply duct 31 to detect the temperature inside the cooling chamber 12.
  • the temperature sensor 41 may be installed at a position corresponding to each shelf 16.
  • the controller 42 drives the compressor 24 according to the detection result of the temperature sensor 41 to form cold air in the heat exchanger 21 or to blow air from the mixing blower 43 or the supply blower 32. By controlling the temperature inside the cooling chamber 12 is adjusted.
  • a door sensor 44 for detecting opening and closing of the door 14 is installed at one side of the door 14 or the main body 10.
  • the controller 42 may stop driving of the cooling unit 20, the cold air supply unit 30, and the mixing unit when the door 14 is opened according to the output value of the door sensor 44. That is, when the door 14 is opened, the controller 42 forcibly stops driving of each blower and the compressor 24 according to the output signal of the door sensor 44 to suppress the rise of the temperature in the freezer.
  • the controller 42 resumes driving of the cooling unit, the cold air supply unit, and the mixing unit.
  • the cold air controller 40 may further include a heater 45 installed in the cold air supply duct 31 to control the temperature of cold air.
  • the heater 45 is made of a hot wire for converting electrical energy into thermal energy, it is installed in the lower end of the cold air supply duct (31).
  • the temperature of the mixed cold air is increased to prevent the internal temperature of the cooling chamber 12 from being lowered drastically and to lower the temperature gently.
  • a heater 26 is installed in the heat exchanger 21 as mentioned.
  • the heater 11 is also installed on the front side of the door side of the main body 10 to prevent the occurrence of frost on the front side due to the temperature difference between the inside and the outside when the door is opened.
  • the cold air control unit 40 further includes at least one heat pipe 47 extending vertically in the cold air supply duct 31 and spaced along the width direction of the cooling chamber 12. Can be.
  • the heat pipe 47 is filled with a working fluid which is phase-changed between the gas and liquid inside the sealed container, and quickly transfers heat between both ends of the container through the phase change process of the working fluid.
  • the heat pipe 47 is installed on the inner side of the cold air supply duct 31 to minimize the temperature drop of the mixed cold air and reduce temperature fluctuations during the movement of the mixed cold air along the vertical direction of the cold air supply duct 31.
  • the temperature of the mixed cold air is kept uniform.
  • the mixed cold air in the cold air supply duct 31 is minimized the temperature fluctuation. Therefore, the temperature of the cold air discharged to each shelf 16 through each vent hole 33 along the longitudinal direction of the cold air supply duct 31 becomes uniform throughout, and the temperature fluctuation of the entire cooling chamber 12 is also minimized.
  • the heat pipe 47 minimizes the temperature rise in the cooling chamber 12.
  • the apparatus in order to minimize the temperature change of the cooling chamber 12, the apparatus includes a blocking member 48 that is disposed continuously at least one along the vertical direction in front of the cooling chamber 12 to block the cooling chamber 12. It includes more.
  • the blocking member 48 may be made of a curtain.
  • the curtains are respectively disposed at positions corresponding to each shelf in the front of the cooling chamber to block the open front surface of the cooling chamber 12 in front of each shelf.
  • the curtain minimizes outside air entering the cooling chamber 12 when the door 14 is opened. Accordingly, it is possible to suppress the temperature rise of the cooling chamber 12 due to the opening and closing of the door 14.
  • the curtain may be made of, for example, a transparent vinyl resin having flexibility at low temperatures.
  • the curtain has a structure in which the upper end is installed on a rod supported on both sides of the cooling chamber 12 and lowered down. The curtain is cut in the longitudinal direction at intervals. It is possible to easily take out the container or put it in the cooling chamber 12 to beat the cut curtain.
  • the blocking member 48 may be formed of an inner door provided inside the door.
  • the inner door is disposed at a position corresponding to each shelf on the front surface of the cooling chamber, and is rotatably installed with respect to the cooling chamber to open and close the cooling chamber.
  • the inner door prevents outside air from entering the cooling chamber 12 when the door 14 is opened. And, by opening only the inner door disposed on the shelf to take out or put the container, it is possible to minimize the temperature change of the container placed on another shelf.
  • the apparatus may further include an air curtain unit installed on the shelf to inject air in the vertical direction to the front of the cooling chamber to block the loss of cold air on the front of the cooling chamber.
  • 3 and 4 illustrate the structure of the air curtain portion according to this embodiment.
  • the air curtain unit is installed at the front end of the shelf 16 is disposed on the front of the cooling chamber 12, the air blower 50 to suck the cold air inside the cooling chamber and discharge in the vertical direction, and the air blower ( It may include a power supply unit 52 for supplying power to 50.
  • the air blower 50 extends along the front end of the shelf 16.
  • the air blower 50 is provided with a cylindrical fan, one side is formed with a suction port for suctioning cold air and the other side is formed with a discharge port for discharging the cold air.
  • the air inlet of the air blower 50 is installed toward the bottom, and the discharge port for discharging cold air is installed in the vertical direction toward the top.
  • the air blower 50 sucks cold air inside the cooling chamber 12 from the lower part and injects cold air toward the upper part in the vertical direction. Therefore, the cold air flows in the vertical direction on the front of the shelf, and this flow of cold air acts as if the curtain is draped on the front side of the cooling chamber.
  • the air blower 50 is installed on each shelf 16 to generate a flow of cold air in front of the shelf even when the position of the shelf is moved in the cooling chamber.
  • the power supply unit 52 is capable of applying power to the air blower 50 regardless of movement even when each shelf 16 is moved up and down along the column 18.
  • the power supply unit 52 is installed at the rear end of the shelf 16 to be connected to the power supply 54, and installed in the cooling chamber 12 is supplied with power and the connection connector 54 And a supply connector 56 that is coupled to and electrically connected thereto.
  • the supply connector 56 is connected to the power applied to the main body 10 to receive power.
  • the supply connector 56 is installed at a position corresponding to the connection connector 54 inside the cooling chamber 12.
  • the supply connector 56 is provided with a plurality of intervals along the vertical direction of the cooling chamber so as to correspond to each moving position of the shelf (16).
  • the air blower 50 which is electrically connected to the connection connector through the supply connector 56 and the connection connector 54. Regardless of the position of the shelf, the air blower 50 is driven to form an air curtain by cold air in front of the shelf.
  • the air blower 50 controls the supply of power applied to the supply connector, and operates only when the door 14 or the blocking member 48 is opened at the position of the shelf to be used, and the door or the blocking member is closed. You can stop the drive.
  • FIG. 5 shows a control structure for maintaining supercooling of the liquid beverage stored in the apparatus via the controller 42.
  • the controller 42 of the cold air control unit 40 receives the signal of the temperature sensor 41 and the door sensor 44 and the operation unit for setting the temperature and the data recorded in the storage unit 46 Comparative operation
  • the controller 42 controls and operates the supply blower 32, the suction blower 23, the mixing blower 43, the compressor 24, or the heater 45 based on the comparison operation result as described above. Adjust the internal temperature within the preset temperature range to match the subcooling temperature of the liquid beverage.
  • the controller 42 controls the mixing blower 43 or the heater 45 to keep the temperature from being drastically changed.
  • the blowing amount of the mixing blower 43 and the supply blower 32 is closely related to the temperature control of the cooling chamber 12, which will be described later in detail.
  • the mixed cold air is supplied to the cooling chamber 12 through the air vent 33 of the cold air supply duct 31 to supercool the liquid beverage in the container loaded on each shelf 16 of the cooling chamber 12. .
  • the suction blower 23 installed in the cooling duct 22 is driven, the lower portion of the cooling chamber 12 is lowered and sucked into the cooling duct 22.
  • the air sucked into the cooling duct 22 is cooled while passing through the heat exchanger 21, and the cold air is again sucked into the cold air supply duct 31 by the mixing blower 43.
  • Mixed with The mixed cold air is again supplied to the cooling chamber 12 for cooling the container through the air vent 33 of the cold air supply duct 31.
  • the apparatus cools the container through the circulation of air, and in this process, by controlling the temperature of the cold air through the cold air control unit 40, it is possible to more easily and reliably maintain the liquid beverage in the container in the supercooled state. .
  • the apparatus is the same as the structure described above except for the structure of the mixing portion of the cold air control unit 40.
  • the same reference numerals are used for the same components, and detailed description thereof will be omitted.
  • the mixing unit is installed such that the upper end of the cold air supply duct 31 faces the cooling chamber 12 and the cooling duct 22 at the same time, and the cooling duct 22 exits.
  • the supply blower 60 is installed in the supply blower 60, and the supply blower 60 is installed to face the cooling chamber 12 and the cooling duct 22 at the same time to cool the air in the cooling duct 22 and the air in the cooling chamber 12.
  • the air is supplied to the cold air supply duct 31.
  • the simultaneous face here means that the suction port provided in the supply blower 32 is connected to both the cooling duct 22 and the cooling chamber 12.
  • the discharge port of the supply blower 60 is connected to the cold air supply duct 31.
  • the air in the cooling chamber 12 may be mixed with the cold air of the cooling duct 22 only by the supply blower 60.
  • the cold air cooled after the cooling duct 22 is blown into the cold air supply duct 31 through the supply blower 60, and some of the air in the cooling chamber 12 is also cooled by the supply blower 60. It is sucked into the supply duct 31. Therefore, the cold air passing through the heat exchanger 21 and the air inside the cooling chamber 12 are mixed in the cold air supply duct 31, and the mixed cold air is supplied into the cooling chamber 12 through the cold air supply duct 31. do.
  • the temperature inside the cooling chamber 12 is detected by the temperature sensor 41.
  • the temperature value detected by the temperature sensor 41 is applied to the controller 42.
  • the controller 42 compares the detected temperature value of the actual cooling chamber 12 with the set temperature value recorded in the storage 46.
  • the storage section 46 records the temperature range for the supercooling temperature control of the liquid beverage, which is changed as necessary in accordance with the liquid beverage via the control unit 49 connected to the controller 42.
  • the temperature range stored in the storage unit 46 is divided into a first temperature range for determining whether to supply cold air and a second temperature range for temperature control of the cold air.
  • the controller 42 supplies or stops the cold air itself when it is out of the first temperature range.
  • the controller 42 controls the temperature of the cold air supplied to the cooling chamber 12 such that the temperature inside the cooling chamber 12 is not lowered abruptly as the cold air is supplied.
  • the first temperature range is set to a temperature range for maintaining the liquid beverage in the container in a supercooled state.
  • the first temperature range is set according to the beverage at 0 to -20 ° C, which is a subcool temperature range for various beverages and alcoholic beverages.
  • the second temperature range is set to be within the first temperature range.
  • the second temperature range may be set to 80% of the first temperature range. That is, when the first temperature range is between 0 ° C and -20 ° C, the second temperature range is set between -2 ° C and -18 ° C.
  • the controller 42 compares the detected temperature value with the preset first temperature range and supplies cold air to the cooling chamber 12 when the detected temperature is equal to or greater than the upper limit of the first temperature range.
  • the suction blower 23 is driven according to the control signal of the controller 42, the air in the cooling chamber 12 is sucked into the cooling duct 22.
  • the compressor 24 is driven, heat is exchanged through the heat exchanger 21 to form cold air.
  • the cold air is ejected to the cold air supply duct 31 in accordance with the driving of the supply blower 32 installed on the cooling duct 22 exit side.
  • the cold air supplied to the cold air supply duct 31 is ejected into the cooling chamber 12 through the air vent 33 formed in the cold air supply duct 31 while moving along the cold air supply duct 31 to cool the chamber 12. Lower the internal temperature of the liquid beverage to the supercooling temperature range.
  • the container placed on the shelf 16 is in a supercooled state in the cooling chamber 12.
  • the controller 42 continuously detects the temperature inside the cooling chamber 12, and compares whether the detected temperature is lower than an upper limit of the second temperature range. When the detected temperature is greater than or equal to the upper limit of the second temperature range, the process is repeated continuously. When the temperature is lower than the upper limit of the second temperature range, the temperature of the cold air is controlled.
  • the process of controlling the temperature of the cold air is performed by controlling the airflow amount or driving of the heater 45 according to the driving of the supply blower 32 and the mixing blower 43.
  • the controller 42 drives the heater 45, the cold air blown into the cold air supply duct 31 increases in temperature while passing through the heater 45 installed in the cold air supply duct 31. Accordingly, the cool air whose temperature is increased by the heater 45 is supplied into the cooling chamber 12. As such, as the temperature of the cold air is increased and supplied to the cooling chamber 12 through the control of the heater 45, the temperature inside the cooling chamber 12 does not suddenly drop, but shows a gentle falling state. Therefore, the supercooling temperature for the container can be maintained more continuously and stably. In addition, the time interval between the driving and stopping of the compressor 24 for supplying the cold air is increased, thereby minimizing a failure due to frequent on / off driving of the compressor 24, and preventing the formation of the heat exchanger.
  • the controller 42 controls the temperature of the cold air by driving the mixing blower 43 in addition to the driving of the heater 45.
  • the mixing blower is driven, some of the air in the cooling chamber 12 is directly sucked into the cold air supply duct 31 through the mixing blower 43 without passing through the cooling duct 22.
  • the air inside the cooling chamber 12 having a higher temperature than the cold air is supplied to the cold air supply duct 31 because the air is not cooled as described above.
  • Cold and air are mixed in the cold air supply duct 31.
  • the cold air is mixed with the high temperature air to increase the temperature. Therefore, the mixed air whose temperature rises compared with cold is supplied to the cooling chamber 12 inside.
  • by supplying the temperature of the cold air to the cooling chamber 12 by driving the mixing blower 43 it is possible to continuously and stably maintain a sudden change in the supercooling temperature of the container without a sudden change in temperature.
  • the controller 42 may control the temperature of the mixed cold air more precisely by controlling the air blowing amount of the mixing blower 43 and the air blowing amount of the supply blower 32.
  • the amount of air mixed in the cold air can be increased by making the blowing amount of the mixing blower 43 higher than the blowing amount of the supply blower 32. Accordingly, the amount of air is greater than that of the cold air blown into the cold air supply duct 31, thereby increasing the temperature of the mixed cold air.
  • the temperature change inside the cooling chamber 12 may be more gently and continuously maintained.
  • the controller 42 checks whether the temperature inside the cooling chamber 12 detected through the temperature control process of the cold air deviates from the lower limit of the second temperature range.
  • the controller 42 stops the cold air temperature control when the detected temperature is out of the lower limit of the second temperature range.
  • the cold air temperature control is stopped, low temperature cold air is supplied to the cooling chamber 12 as it is. Accordingly, the temperature inside the cooling chamber 12 is rapidly lowered, and the controller 42 checks whether the detected temperature is out of the lower limit of the first temperature range, and stops supply of cold air when the temperature is out of the lower limit of the first temperature range. .
  • the controller 42 stops the drive of the compressor 24 and each blower, and the supply of cold air to the cooling chamber 12 is cut off. As the cold air supply is stopped, the internal temperature of the cooling chamber 12 is gradually raised.
  • the controller 42 continuously detects the temperature inside the cooling chamber 12 through the temperature sensor 41.
  • the controller 42 compares the detected internal temperature of the cooling chamber 12 with the first temperature range, and resumes supply of cold air when the temperature value rises above the upper limit of the first temperature range.

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention vise à maintenir stable et uniforme la température à l'intérieur d'un congélateur en fonction de la température de sur-refroidissement de boissons et de boissons alcoolisées. A cet effet, l'invention porte sur un congélateur à sur-refroidissement, lequel congélateur comprend : un corps principal comportant une chambre de refroidissement pour stocker des récipients remplis avec des boissons dans un état sur-refroidi ; une porte pour ouvrir et fermer la partie avant du corps principal ; une pluralité d'étagères disposées en de multiples étages dans la chambre de refroidissement pour supporter les récipients ; une unité de refroidissement pour refroidir l'air à l'intérieur de la chambre de refroidissement ; une unité d'alimentation en air froid pour faire circuler l'air refroidi par l'unité de refroidissement à travers l'intérieur de la chambre de refroidissement ; et une unité de régulation d'air froid pour réguler la température de l'air froid fourni par l'unité de alimentation en air froid en fonction de la température de sur-refroidissement des boissons, l'unité de régulation d'air froid comprenant une partie de mélange pour envoyer l'air interne de la chambre de refroidissement à l'unité d'alimentation en air froid afin de mélanger l'air interne à l'air froid si nécessaire, un capteur de température installé dans l'unité d'alimentation en air froid pour détecter la température de la chambre de refroidissement, et un dispositif de commande pour commander l'unité de refroidissement, l'unité d'alimentation en air froid et la partie de mélange par calcul de la valeur détectée à partir du capteur de température de façon à maintenir la température interne de la chambre de refroidissement à l'intérieur d'une température prédéterminée.
PCT/KR2012/005606 2012-06-28 2012-07-13 Congélateur à sur-refroidissement WO2014010771A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/KR2012/005606 WO2014010771A1 (fr) 2012-07-13 2012-07-13 Congélateur à sur-refroidissement
CN201310269200.2A CN103575014B (zh) 2012-06-28 2013-06-28 过冷冰箱以及过冷冰箱的控制方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2012/005606 WO2014010771A1 (fr) 2012-07-13 2012-07-13 Congélateur à sur-refroidissement

Publications (1)

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WO2014010771A1 true WO2014010771A1 (fr) 2014-01-16

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PCT/KR2012/005606 WO2014010771A1 (fr) 2012-06-28 2012-07-13 Congélateur à sur-refroidissement

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Country Link
WO (1) WO2014010771A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106595052A (zh) * 2016-11-15 2017-04-26 格力电器（芜湖）有限公司 水箱内胆及热水器
US11238689B2 (en) 2020-01-22 2022-02-01 Cole Craig Levine Smoothie vending machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070075677A (ko) * 2006-01-14 2007-07-24 삼성전자주식회사 냉장고 및 이를 이용한 과냉각액 제조방법
KR20080009216A (ko) * 2005-04-27 2008-01-25 후쿠시마 고교 가부시키가이샤 냉각고
JP2009145041A (ja) * 2009-03-27 2009-07-02 Panasonic Corp 過冷却制御冷蔵庫

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080009216A (ko) * 2005-04-27 2008-01-25 후쿠시마 고교 가부시키가이샤 냉각고
KR20070075677A (ko) * 2006-01-14 2007-07-24 삼성전자주식회사 냉장고 및 이를 이용한 과냉각액 제조방법
JP2009145041A (ja) * 2009-03-27 2009-07-02 Panasonic Corp 過冷却制御冷蔵庫

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106595052A (zh) * 2016-11-15 2017-04-26 格力电器（芜湖）有限公司 水箱内胆及热水器
US11238689B2 (en) 2020-01-22 2022-02-01 Cole Craig Levine Smoothie vending machine

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