WO2020175821A1 - 냉장고 - Google Patents

냉장고 Download PDF

Info

Publication number
WO2020175821A1
WO2020175821A1 PCT/KR2020/002067 KR2020002067W WO2020175821A1 WO 2020175821 A1 WO2020175821 A1 WO 2020175821A1 KR 2020002067 W KR2020002067 W KR 2020002067W WO 2020175821 A1 WO2020175821 A1 WO 2020175821A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
greenhouse
freezing
refrigerator
guide duct
Prior art date
Application number
PCT/KR2020/002067
Other languages
English (en)
French (fr)
Inventor
임형근
윤석준
송성민
이정훈
이호연
Original Assignee
엘지전자 주식회사
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
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to US17/433,429 priority Critical patent/US20220146155A1/en
Publication of WO2020175821A1 publication Critical patent/WO2020175821A1/ko

Links

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
    • 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
    • F25D13/00—Stationary devices, e.g. cold-rooms
    • F25D13/02—Stationary devices, e.g. cold-rooms with several cooling compartments, e.g. refrigerated locker systems
    • F25D13/04—Stationary devices, e.g. cold-rooms with several cooling compartments, e.g. refrigerated locker systems the compartments being at different temperatures
    • 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
    • F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/025—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures using primary and secondary refrigeration systems
    • 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
    • F25D23/06—Walls
    • F25D23/069—Cooling space dividing partitions
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
    • F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
    • F25B2321/023—Mounting details thereof
    • 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
    • F25D2317/063—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 with air guides
    • 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
    • F25D2317/066—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 characterised by the air supply
    • F25D2317/0665—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 characterised by the air supply from the top
    • 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
    • F25D2317/067—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 characterised by air ducts
    • F25D2317/0671—Inlet ducts

Definitions

  • the present invention relates to a refrigerator.
  • a refrigerator is a household appliance that stores food at a low temperature, a refrigerator for storing food in a refrigerated state in the range of 3 O C, and a freezer for storing food in a frozen state in the range of -20 O C.
  • the cryogenic temperature can be understood to mean a temperature in the range of -45 O C to -50 O C.
  • thermoelectric element ThermoElectric Module
  • a core greenhouse is provided in the freezing chamber, and a thermoelectric module is adopted to ensure that the core greenhouse temperature is maintained at a very low temperature significantly lower than the freezing chamber temperature.
  • thermoelectric module As a heat dissipation means attached to the heating surface of the thermoelectric module,
  • a blower type cooling fan is applied to forcibly flow the core greenhouse cooler.
  • [1 is the cold air drawer through the rear of the drawer by blowing cold air from the cooling fan.
  • the coolant inside the drawer flows into the interior and is sucked into the cooler of the thermoelectric module through suction units provided in the upper and lower sides of the storage chamber that has been heated to the rear of the core greenhouse.
  • the cool air discharged from the cooling fan does not flow inside the drawer, and the amount of cool air returned to the suction port is reduced. As a result, the discharge pressure in the front of the cooling fan is high and the suction pressure in the rear is low, so that the load of the cooling fan is excessively increased. And, there may be a problem that the amount of power consumed increases.
  • the temperature in front of the core greenhouse may be high.
  • a refrigerator for achieving the above object includes: a refrigerator compartment; A deep-temperature refrigeration unit including a shim-on case that is mounted on one side of the freezer compartment and defines the freezer compartment and a core greenhouse, and a shim-on-shield drawer that is inserted into the core greenhouse; It may include a freezing evaporation chamber formed on the rear side.
  • the refrigerator according to the embodiment of the present invention, the compartment wall; in the freezing evaporation chamber
  • Refrigeration chamber evaporator which is accommodated and generates cool air for cooling the freezing chamber; a freezing chamber fan that drives to supply the freezing evaporation chamber cooler to the freezing chamber; a thermoelectric module provided to cool the temperature of the core greenhouse to a temperature lower than the freezing chamber temperature; It may include a core greenhouse fan for forcibly flowing air inside the core greenhouse.
  • the partition wall divides the freezing evaporation chamber and the freezing chamber, and the heart greenhouse
  • It may include a core greenhouse side discharge grill for discharging cool air into the inside, and a freezing chamber side discharge grill for discharging cool air into the freezing chamber.
  • the thermoelectric module includes: a thermoelectric element including a heat absorbing surface facing the heart greenhouse and a heat generating surface defined as a surface opposite to the heat absorbing surface; a cold sink in contact with the heat absorbing surface and placed behind the heart greenhouse; And a heat sink defined as a heart temperature chamber evaporator in contact with the heating surface and connected in series with the freezing chamber evaporator.
  • the refrigerator according to the embodiment of the present invention may further include a guide duct mounted on the ceiling of the core heating case and communicating with the core greenhouse discharge grill.
  • the application of the suction type cooling fan has the effect of reducing the flow resistance compared to the case where the blower type cooling fan is applied even if the amount of food or objects stored in the core temperature storage room is large.
  • thermoelectric module is guided to the area in front of the core greenhouse, so there is an advantage in that the temperature distribution inside the core greenhouse is maintained evenly.
  • FIG. 1 is a view showing a refrigerant circulation system of a refrigerator according to an embodiment of the present invention.
  • Figure 2 is a perspective view showing the freezer compartment and the core greenhouse structure of the refrigerator according to an embodiment of the present invention.
  • FIG. 3 is a longitudinal sectional view taken along 3-3 of FIG. 2;
  • Figure 4 is a perspective view of a guide duct mounted inside the heart greenhouse according to an embodiment of the present invention.
  • FIG. 5 is a bottom perspective view of a case cover forming a ceiling of a shim-on case according to an embodiment of the present invention.
  • FIG. 6 is a perspective view of a guide duct according to another embodiment of the present invention.
  • FIG. 7 is a bottom perspective view of a case cover according to another embodiment of the present invention.
  • FIG. 1 is a view showing a refrigerant circulation system of a refrigerator according to an embodiment of the present invention.
  • a refrigerant circulation system 10 includes a compressor 11 for compressing a refrigerant into a high temperature and high pressure gas refrigerant, and a refrigerant discharged from the compressor 11 at a high temperature and high pressure.
  • a condenser 12 that condenses into a liquid refrigerant
  • an expansion valve that expands the refrigerant discharged from the condenser 12 into a two-phase refrigerant of low temperature and low pressure
  • an evaporator that evaporates the refrigerant that has passed through the expansion valve into a gas refrigerant of low temperature and low pressure.
  • the refrigerant discharged from the evaporator flows into the compressor 11.
  • the components constituting the refrigerant circulation system are connected to each other by a refrigerant pipe to form a closed circuit.
  • the expansion valve may include a refrigerator compartment expansion valve 14 and a freezer compartment expansion valve 15.
  • the refrigerant pipe at the outlet side of the condenser 12 is divided into two branches, 2020/175821 1»(:1 ⁇ 1 ⁇ 2020/002067
  • the refrigeration chamber expansion valve 14 and the freezer expansion valve 15 are respectively connected to the refrigerant pipe divided into two. That is, the refrigerator compartment expansion valve 14 and the freezer compartment are respectively connected.
  • the expansion valve (15) is connected in parallel at the outlet of the condenser (12).
  • a switching valve 13 is mounted at a point where the refrigerant pipe is divided into two at the outlet side of the condenser 12.
  • the condenser 12 by the opening degree control operation of the switching valve 13
  • the refrigerant that has passed through may flow to only one of the refrigerating compartment expansion valve (14) and the freezer compartment expansion valve (15) or divided into both sides.
  • the switching valve 13 may be a three-way valve, and the flow direction of the refrigerant is determined according to the operation mode.
  • one switching valve such as the three-way valve is mounted at the outlet of the condenser 12 to It is also possible to control the flow direction of, and alternatively, a structure in which an opening/closing valve is mounted on the inlet side of the refrigerating chamber expansion valve 14 and the freezer expansion valve 15 may be possible.
  • the ventricle greenhouse evaporator 24 and the freezing chamber evaporator 17 are connected in series, and the refrigerant passing through the freezing chamber expansion valve passes through the heart chamber evaporator 24 and then the freezing chamber. It flows into the evaporator 17.
  • the cardiac greenhouse evaporator 24 is on the outlet side of the freezing chamber evaporator 17
  • the heart temperature chamber evaporator (24) and the freezing chamber evaporator (17) do not exclude a structure connected in parallel at the outlet end of the freezer compartment expansion valve (15), and the switching valve (13) and the refrigerator compartment expansion valve (14) And the refrigerant circulation system in which the refrigerating chamber evaporator (16) has been removed is also not excluded.
  • the explanation is limited to the connected structure.
  • the first storage room means a storage room that can be controlled to a predetermined temperature by the first cooler
  • the second storage room means a storage room that can be controlled to a lower temperature than the first storage room by the second cooler
  • the third storage room can be defined as a storage room that can be controlled to a lower temperature than the second storage room by a third cooler.
  • the first cooler may be defined as a means for cooling the first storage compartment including at least one of a first evaporator and a first thermoelectric element including a thermoelectric element.
  • the first evaporator may be defined as a means for cooling the first storage compartment. It may include an evaporator (16).
  • thermoelectric element in the second cooler, at least one of the second evaporator and the second thermoelectric element
  • the second evaporator may include the freezing chamber evaporator 17.
  • the third cooler is at least one of the third evaporator and the third thermoelectric element. Including, it can be defined as a means for cooling the third storage chamber.
  • the first storage compartment is a refrigerator compartment that can be controlled to the temperature of the image by the first cooler
  • the second storage compartment is a freezing compartment that can be controlled to a subzero temperature by the second cooler
  • the third The storage compartment may be a deep freezing compartment that can be maintained at a temperature of cryogenic or ultra-low temperature, which will be described later by a third chiller.
  • first, second and third storage rooms are all controlled at the temperature of the image, and the first and second storage rooms are controlled at the temperature of the image, and the third storage room is controlled at a temperature below zero is not excluded.
  • the first storage chamber is limited to a case in which the refrigerating chamber, the second storage chamber is a freezing chamber, and the third storage chamber can be controlled as a core greenhouse.
  • a condensation fan (121) is mounted in a place adjacent to the condenser (12), a refrigerating compartment fan (161) is mounted in a place adjacent to the refrigerator compartment evaporator (16), and a place adjacent to the freezing compartment evaporator (17) Freezer fan (1 unit) is installed.
  • a refrigerating chamber maintained at a refrigeration temperature by the cold air generated by the refrigerating chamber evaporator 16
  • a freezing chamber maintained at a refrigerating temperature by the cold air generated by the freezing chamber evaporator 16
  • thermoelectric module to be described later.
  • a heart chamber maintained at a cryogenic or ultra-low temperature (dee freezing)
  • the refrigerating chamber and the freezing chamber may be disposed adjacent to each other in the vertical direction or left and right directions, and are partitioned from each other by a partition wall.
  • the heart greenhouse may be provided on one side inside the freezing chamber.
  • the core greenhouse 202 may be partitioned from the freezing chamber by the core temperature case 201 having high insulation performance in order to prevent the cold air in the freezing chamber from exchanging heat with each other.
  • thermoelectric module has a thermoelectric element 21 showing a characteristic of absorbing heat on one side and dissipating heat on the other side when power is supplied, and mounted on the heat absorbing surface of the thermoelectric element 21 Includes a cold sink (22), a heat sink mounted on the heating surface of the thermoelectric element (21), and an insulating material (23) that blocks heat exchange between the cold sink (22) and the heat sink. can do.
  • the heart greenhouse evaporator 24 is in contact with the heating surface of the thermoelectric element 21 and functions as a heat sink. That is, the heat transferred to the heating surface of the thermoelectric element 21 is the heart greenhouse evaporator ( 24) Heat exchange with the refrigerant flowing inside. And, the refrigerant flowing through the inside of the core greenhouse evaporator 24 and absorbing heat from the heating surface of the thermoelectric element 21 flows into the freezing chamber evaporator 17 below.
  • the heart greenhouse evaporator 24 is defined as a heat sink.
  • a cooling fan may be provided in front of the cold sink 22, and the cooling fan 2020/175821 1»(:1 ⁇ 1 ⁇ 2020/002067 It can be defined as a core greenhouse fan (25) because it is placed on the back side of the core greenhouse.
  • the core greenhouse fan 25 may be a suction type centrifugal fan that sucks in air in an axial direction and discharges it in a radial direction, and specifically may include a turbo fan.
  • the cold sink 22 is disposed inside the heart greenhouse 202 and behind the
  • the cold sink 22 exchanges heat with the core greenhouse cooler. It absorbs heat through the heat absorbing surface and then functions to transfer it to the heat absorbing surface of the thermoelectric element 21. And, the heat transferred to the heat absorbing surface is transferred to the heating surface of the thermoelectric element 21.
  • thermoelectric module 20 the heat sink 24 is absorbed from the heat absorbing surface of the thermoelectric element 21 to re-absorb the heat transferred to the heating surface of the thermoelectric element 21 to be discharged to the outside of the thermoelectric module 20 It functions to let you know.
  • FIG. 2 is a perspective view showing the structure of a freezing chamber and a core greenhouse of a refrigerator according to an embodiment of the present invention
  • FIG. 3 is a longitudinal sectional view taken along 3-3 of FIG. 2.
  • the refrigerator according to the embodiment of the present invention includes an inner case 101 defining a freezing chamber 102, and a core-temperature refrigeration unit mounted on an inner side of the freezing chamber 102 ( 200).
  • the inside of the refrigerating chamber is maintained at about 3°C (: is maintained inside and outside the freezing chamber 102, the inside of the freezing chamber 102 is maintained at about -18° (: is maintained at the inside and outside, while the temperature inside the deep-temperature freezing unit 200), that is,
  • the internal temperature of the core greenhouse 202 should be maintained at about -50°0. Therefore, to maintain the internal temperature of the core greenhouse 202 at a cryogenic temperature of -50°, the same as the thermoelectric module 20 in addition to the freezer evaporator. Additional refrigeration means are required.
  • the core temperature and refrigeration unit 200 includes a core temperature case 201 forming an inner core greenhouse 202, and a core greenhouse drawer 203 that is slidingly inserted into the core temperature case 201, And a thermoelectric module 20 mounted on the rear surface of the shim-on case 201.
  • thermoelectric module 20 is fixedly mounted on the front surface of the planar wall 103, and a part of the thermoelectric module 20 passes through the core-on case 201 and is accommodated in the core greenhouse 202.
  • the heat sink 24 constituting the thermoelectric module 20 may be a heart greenhouse evaporator connected to the freezing chamber expansion valve 15, as described above.
  • thermoelectric module 20 may further include a housing 27 accommodating the heat sink 24. And, an insertion hole through which the housing 27 is inserted into the planar wall 103 Can be formed.
  • thermoelectric element 21 when the rear surface of the thermoelectric element 21 is in contact with the front surface of the heat sink 24, and power is applied to the thermoelectric element 21, the rear surface of the thermoelectric element 21 becomes a heating surface. .
  • the cold sink 22 is in contact with the front surface of the thermoelectric element, and when power is applied to the thermoelectric element 21, the front surface of the thermoelectric element 21 becomes a heat absorbing surface.
  • the cold sink 22 includes a heat conduction plate made of an aluminum material, and the
  • the core greenhouse fan 25 is disposed in front of the cold sink 22 to forcibly circulate the air inside the core greenhouse 202.
  • the above plan wall 103 includes a grill pan 51 exposed to the freezer cooler, and a shroud 56 attached to the rear surface of the grill pan 51. can do. 2]
  • the insertion hole into which the housing 27 is inserted may be formed in the grill fan 51 corresponding to the immediate rear of the thermoelectric module.
  • a module sleeve 53 is formed protruding apart from each other, and a module sleeve 53 is protruded on the front surface of the grill fan 51 corresponding to between the freezer compartment side discharge grills 511 and 512.
  • the thermoelectric module is formed inside the module sleeve 53. (20) A space for accommodating thermoelectric modules is formed.
  • a flow guide 532 may be provided in a cylindrical or polygonal shape inside the module sleeve 53, and the inside of the flow guide 532 is a fan grille part 536 ) Can be divided into a front space and a rear space. A number of air passage holes may be formed in the fan grill part 536.
  • the core greenhouse side discharge grills 533 and 534 may be formed respectively.
  • the core greenhouse fan 25 may be accommodated therein. And, the flow guide 532 portion corresponding to the front space of the fan grill part 536 allows the ventricle cooler to be sucked into the heart greenhouse fan 25. It serves to guide the flow of cold air. That is, the cold air that has been introduced into the inner space of the flow guide 532 and has passed through the fan grill unit 536 is discharged in the radial direction of the core greenhouse fan 25 and the Cold sink (22) and
  • thermoelectric module is at the rear end of the flow guide 532 (or
  • It can be defined as a space between the rear end of the deep greenhouse fan (25) and the rear surface of the grill fan (51).
  • the housing 27 accommodating the heat sink 24 protrudes from the rear surface of the upper planning wall 103 to be placed in the refrigeration evaporation chamber 104. Accordingly, the housing 27 has The rear surface is exposed to the cold air of the refrigeration evaporation chamber 104, and the surface temperature of the housing 27 is substantially maintained at a temperature equal to or similar to the temperature of the cold air in the refrigeration evaporation chamber.
  • the cold sink 22 is accommodated in the space for accommodating the thermoelectric module, and the insulating material 23, the thermoelectric element 21 and the heat sink 24 are accommodated in the housing 27 It can be done.
  • thermoelectric module accommodation space to convert the ice separated from the cold sink 22 into defrost water during the defrost operation (core greenhouse defrost) It functions to let you know.
  • a grill 534 may be included.
  • a guide duct 60 may be mounted at the outlet end of the upper discharge grill 533, and a ceiling of the core-on case 201 may include the guide duct 60.
  • a depression (described later) may be formed.
  • the cold air discharged through the grills 533 and 534 is guided along the guide duct 60 to the front area of the core greenhouse 202.
  • the front end of the guide duct 60 is from the front end of the core on case 201
  • FIG. 4 is a view of a guide duct mounted inside a heart greenhouse according to an embodiment of the present invention.
  • the guide duct 60 according to an embodiment of the present invention is
  • It may include a bottom portion 61, a front portion 63 extending upward from the front end of the bottom portion 61, and side portions 62 extending upward from both ends of the bottom portion 61.
  • the front and side portions are formed in a single rib shape, and are circumscribed along the edge of the bottom portion 61.
  • the front and side portions may be defined as edge walls.
  • the rear portion of the guide duct (60) is opened to open the cold air inlet (66).
  • 2020/175821 1»(:1 ⁇ 1 ⁇ 2020/002067 is formed, and the upper surface portion of the guide duct 60 is opened and is covered by the ceiling of the core-on case 201.
  • one or a plurality of fastening bosses 64 may protrude from the bottom part 61.
  • the fastening boss may protrude at a point close to the rear end of the central portion and the front end of the central portion of the bottom portion 61, and may also be formed protruding in the center of the bottom portion 61.
  • a plurality of rows can be formed in the longitudinal direction of the bottom part 61 from the rear end of the bottom part 61 toward the front end. And, for each row, the left side and the left side and the left side and the left side of each row are Two may be formed on the right side, but one cold air outlet is not excluded from being formed long in the width direction of the bottom, and three or more outlets in one row are not excluded from being arranged in the width direction of the bottom portion (61).
  • It can be formed in the form of increasing the area as it goes toward shear.
  • the size or area of the cold air outlet formed at a point close to the rear end of the guide duct 60, that is, a point close to the core greenhouse fan 25, is the core greenhouse fan 25 It can be formed to be smaller than the size or area of the cold air outlet formed at a point far from the.
  • the rear end of the bottom part 61 is formed to be inclined or rounded downward, so that the flow guide 532 may be seated on the upper end. Then, the discharge port of the upper discharge grill 533 is formed.
  • the cold air inlet 66 of the vortex guide duct 60 abuts and communicates with each other.
  • FIG. 5 is a bottom perspective view of a case cover forming a ceiling of a shim-on case according to an embodiment of the present invention.
  • the guide duct 60 is a ceiling of the core-on case 201.
  • It may include a side portion 212 extending downward from the side end, and a rear surface portion 213 extending downward from the rear end of the upper surface portion 211.
  • the duct coupling groove 215 in which the guide duct 60 is mounted may be formed to be recessed or stepped in the upper surface part 211.
  • the cold air guide groove 214 may be formed to extend a predetermined length to the inside of the duct coupling groove 215.
  • the width of the cold guide groove 214 is the width of the upper discharge grill 533
  • the rear portion 213 may be designed to wrap the upper surface and the side surface of the upper discharge grill 533.
  • It may have a corresponding width and length, and may be formed to be recessed or stepped to a depth corresponding to the height of the front portion 63 and the side portion 62 of the guide duct 60.
  • a fastening member such as a screw can be inserted into the fastening boss 216 of the case cover 210 after passing through the fastening boss 64 from the outer lower side of the guide duct 60.
  • FIG. 6 is a perspective view of a guide duct according to another embodiment of the present invention.
  • the guide duct 60 according to the present embodiment has the same configuration as the guide duct 60 disclosed in FIG. 4, except that the width of the guide duct and the coupling method with the case cover There is a difference.
  • the guide duct (60 ⁇ includes a bottom portion 61, a front portion 63, a side portion 62, and a rear portion 64, and a cold air inlet 66 is formed in the rear portion
  • the front part 63, the side part 62, and the rear part 64 may be defined as edge walls.
  • a plurality of cold air outlets 65 are formed in the bottom part 61, and the method of forming the cold air outlets is the same as described in FIG. 4.
  • a number of fastening protrusions 67 may protrude from the outer surface of the guide duct (the side surface 62 of the 60 ⁇ ), and the plurality of fastening protrusions 67 are in the longitudinal direction of the guide duct 60. They can be placed apart.
  • FIG. 7 is a bottom perspective view of a case cover according to another embodiment of the present invention.
  • a guide duct (60 ⁇ ) disclosed in FIG. 6 is coupled to the case cover (0 ⁇ ).
  • the width of the coupling groove 215 may also be formed to be larger than the width of the duct coupling groove 215 initiated in 5. This is the guide duct (60 ⁇ width of 60 ⁇ started in FIG. This is because it is larger than its width.
  • a plurality of protrusion insertion openings 217 are formed on the side of the duct coupling groove 215, and the guide duct (60 ⁇ fastening protrusions 67) is formed in the plurality of protrusion insertion openings 217, respectively Is inserted.
  • a fastening protrusion may also protrude from the guide duct (the front part 63 of 60 ⁇ , and the protrusion protruding from the front part 63 is inserted into the core-on case part.
  • a groove for inserting a protrusion protruding from the front part 63 may be formed at the front end of the ceiling of the core-on case 201 to which the case cover is coupled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

본 발명의 실시예에 따른 냉장고는, 냉동실 내에 수용되는 심온 냉동 유닛을 포함하고, 심온 냉동 유닛은, 심온 케이스와, 심온실 드로어를 포함하며, 상기 심온 케이스의 천장에는 냉기 안내를 위한 가이드 덕트가 구비되는 것을 특징으로 한다.

Description

2020/175821 1»（：1/10公020/002067 명세서
발명의명칭:냉장고
기술분야
[1] 본발명은냉장고에관한것이다.
배경기술
[2] 일반적으로냉장고는음식물을저온으로저장하는가전기기로서 ,섭씨 3OC 범위의냉장상태로음식물을저장하기위한냉장실과,섭씨 -20OC범위의냉동 상태로음식물을저장하기위한냉동실을포함한다.
[3] 그러나,육류나해산물같은음식물을현재의냉동실내에서냉동상태로
보관하는경우,음식물이 -20OC로결빙되는과정에서육류나해산물의세포내에 있는수분이세포밖으로빠져나가면서세포가파괴되고해동과정에서식감이 변해버리는현상이발생한다.
[4] 그러나,저장실의온도조건을현재의냉동실온도보다현저히낮은극저온 상태로만들어서，음식물이냉동상태로변화될때빙결점온도대역을빠르게 지나가도록하면세포파괴를최소화할수있다.그결과,해동후에도육질과 식감이냉동전의상태에가까운상태로되돌아올수있는장점이있다.상기 극저온이라함은 -45OC ~ -50OC범위의온도를말하는것으로이해될수있다.
[5] 이러한이유때문에,최근에는냉동실온도보다더낮은온도로유지되는
심온실 (deep freezing compartment)이구비된냉장고에대한수요가증가하고 있는추세에있다.
[6] 그리고,심온실에대한수요를만족시키기위해서는기존의냉매를이용한
냉각에는한계가있기때문에,열전소자 (TEM : ThermoElectric Module)를 이용하여심온실온도를극저온으로낮추는시도를하고있다.
P] 아래선행기술에는,냉동실내에심온실이구비되고,심온실온도가냉동실 온도보다현저히낮은극저온으로유지되도록하기위하여열전모듈이 채용되는내용이개시된다.
[8] 특히,열전모듈의발열면에부착되는방열수단으로서냉매가흐르는
증발기가채용되는내용이개시된다.
[9] 선행기술인한국공개특허제 2018-0131752호 (2018년 12월 11일)의도 18을
참조하면,심온실냉기를강제유동시키기위해서블로어타입 (blower type)의 냉각팬이적용된다.
[1이 즉,냉각팬으로부터냉기를불어서드로어후면을통하여냉기가드로어
내부로유입되도록하고,드로어내부의냉기는심온실후방으로흘러심온 저장실상측과하측에구비된흡입부를통하여열전모듈의냉각기로흡입된다.
[11] 이러한냉기순환구조의경우,드로어후방에음식물이많이적재되어있거나, 박스형태의물건이드로어의후방에수납되는경우,유동저항으로인하여 2020/175821 1»（：1^1{2020/002067 심온실냉기의순환이 원활하게 이루어지지못하는문제가발생한다.
[12] 특히,드로어의후면이 음식물이나수납물건에의하여 막히면,
냉각팬으로부터토출되는냉기가드로어내부로흐르지못하게되고,흡입구로 되돌아오는냉기의 양도적어진다.그결과,냉각팬전방의토출측압력은높고 후방의흡입측압력은낮아서 냉각팬의부하가과도하게증가하고,소비 전력량이증가하는문제가발생할수있다.
[13] 무엇보다,심온실내에서온도분포가균일하게유지되지못하고,심온실
후방의온도는매우낮은반면,심온실전방의온도는높은현상이 발생할수 있다.
발명의상세한설명
기술적과제
[14] 본발명은상기와같은문제점을개선하기 위하여제안된다.
과제해결수단
[15] 상기와같은목적을달성하기 위한본발명의실시예에 따른냉장고는，냉장실; 상기 냉장실과구획되는냉동실;상기 냉동실내부일측에장착되며,상기 냉동실과구획되는심온실을정의하는심온케이스와,상기심온실내부에 삽입되는심온실드로어를포함하는심온냉동유닛;상기심온케이스의후측에 형성되는냉동증발실을포함할수있다.
[16] 또한,본발명의실시예에따른냉장고는,구획벽 ;상기 냉동증발실에
수용되어 ,상기 냉동실냉각을위한냉기를생성하는냉동실증발기 ;상기 냉동 증발실냉기를상기 냉동실로공급하도록구동하는냉동실팬;상기심온실의 온도를냉동실온도보다낮은온도로냉각하도록제공되는열전모듈;상기 심온실내부의공기를강제유동시키는심온실팬을포함할수있다.
[17] 상기구획벽은,상기 냉동증발실과상기 냉동실을구획하고,상기심온실
내부로냉기를토출하는심온실측토출그릴과,상기 냉동실내부로냉기를 토출하는냉동실측토출그릴을포함할수있다.
[18] 상기 열전모듈은,상기심온실을향하는흡열면과,상기흡열면의반대면으로 정의되는발열면을포함하는열전소자;상기흡열면에 접촉하며,상기심온실 후방에놓이는콜드싱크;및상기발열면에 접촉하고,상기 냉동실증발기와 직렬연결되는심온실증발기로정의되는히트싱크를포함할수있다.
[19] 또한,본발명의실시예에다른냉장고는,상기심온케이스의천장에장착되고, 상기심온실측토출그릴과연통하는가이드덕트를더포함할수있다.
발명의효과
[2이 본발명의실시예에따른냉장고에따르면다음과같은효과가있다.
[21] 첫째,석션타입 냉각팬이 적용됨으로써,심온저장실내에수납된음식또는 물건의 양이 많아도,블로어 타입 냉각팬이 적용되는경우에 비하여유동저항이 감소되는효과가있다. 2020/175821 1»（：1/10公020/002067 둘째,심온실후방에서 전방으로냉기가원활하게공급되도록하기위하여 가이드덕트가장착됨으로써 ,열전모듈의콜드싱크를통과하면서 냉각된 냉기가유동저항없이심온실전방까지 안내되는효과가있다.
[23] 셋째,심온실내에 저장된음식물의 양에관계없이,열전모듈에의하여 냉각된 냉기가심온실전방영역까지 안내되므로,심온실내부의온도분포가균일하게 유지되는장점이 있다.
넷째,심온실후방에서 전방에가까워질수록,가이드덕트에 형성된냉기 토출구의 면적이증가하도록함으로써,심온실전방으로토출되는냉기의 양과 심온실중간지점으로토출되는냉기의 양이균일하게유지되는장점이 있다.
[25] 다시 말하면,냉각팬으로부터 멀어질수록토출되는냉기의 양이감소하는
현상을최소화할수있는장점이 있다.
도면의간단한설명
도 1은본발명의실시예에따른냉장고의 냉매순환시스템을보여주는도면. 도 2는본발명의실시예에따른냉장고의 냉동실과심온실구조를보여주는 사시도.
도 3은도 2의 3-3을따라절개되는종단면도.
도 4는본발명의실시예에따른심온실의내부에장착되는가이드덕트의 사시도.
도 5는본발명의실시예에따른심온케이스의 천장을형성하는케이스커버의 저면사시도.
도 6은본발명의다른실시예에 따른가이드덕트의사시도.
도 7은본발명의다른실시예에 따른케이스커버의 저면사시도.
발명의실시를위한형태
]]]]]]]]]] 이하에서는본발명의실시예에 따른냉장고에 대하여도면을참조하여상세히 7902463581
2222 233333341
설명한다.
도 1은본발명의실시예에따른냉장고의 냉매순환시스템을보여주는 도면이다.
도 1을참조하면,본발명의실시예에따른냉매순환시스템 (10)은,냉매를 고온고압의기체 냉매로압축하는압축기 (11)와,상기 압축기 (11)로부터 토출되는냉매를고온고압의 액상냉매로응축하는응축기 (12)와,상기 응축기 (12)로부터토출되는냉매를저온저압의 2상냉매로팽창시키는 팽창변과,상기 팽창변을통과한냉매를저온저압의기체 냉매로증발시키는 증발기를포함한다.상기증발기로부터토출되는냉매는상기 압축기 (11)로 유입된다.그리고,상기 냉매순환시스템을구성하는구성요소들은냉매 배관에 의하여서로연결되어폐회로를구성한다.
[36] 상세히,상기 팽창변은,냉장실팽창변 (14)과냉동실팽창변 (15)을포함할수 있다.그리고,상기응축기 (12)의출구측에서 냉매배관은두갈래로나뉘어지고, 2020/175821 1»（：1^1{2020/002067 두갈래로나뉘어지는냉매배관에상기 냉장실팽창변 (14)과상기 냉동실 팽창변 (15)이각각연결된다.즉,상기 냉장실팽창변 (14)과냉동실팽창변 (15)은 상기응축기 (12)의출구에서 병렬연결된다.
[37] 그리고,상기응축기 (12)의출구측에서 냉매배관이두갈래로나뉘어지는 지점에 절환밸브 (13)가장착된다.상기 절환밸브 (13)의 개도조절동작에 의하여상기응축기 (12)를통과한냉매가상기 냉장실팽창변 (14)과상기 냉동실 팽창변 (15)중어느한쪽으로만흐르거나,양쪽으로나뉘어흐를수있다.
[38] 상기절환밸브 (13)는삼방밸브일수있고,운전모드에따라서 냉매의흐름 방향이 결정된다.여기서,상기삼방밸브와같은하나의절환밸브가상기 응축기 (12)의출구에장착되어 냉매의흐름방향을제어할수도있고,다른 방법으로상기 냉장실팽창변 (14)과냉동실팽창변 (15)의 입구측에 개폐밸브가 각각장착되는구조도가능할것이다.
[39] 한편,상기증발기는,상기 냉장실팽창변 (14)의출구측에 연결되는냉장실 증발기 (16)와,상기 냉동실팽창변 (15)의출구측에 연결되는직렬연결되는 심온실증발기 (24)및냉동실증발기 (17)를포함할수있다.상기심온실 증발기 (24)및상기 냉동실증발기 (17)는직렬연결되고,상기 냉동실팽창변을 통과한냉매는상기심온실증발기 (24)를통과한후상기 냉동실증발기 (17)로 유입된다.
[4이 여기서,상기심온실증발기 (24)는상기 냉동실증발기 (17)의출구측에
배치되어,냉동실증발기 (17)를통과한냉매가심온실증발기 (24)로유입되는 구조도가능함을밝혀둔다.
[41] 또한,상기심온실증발기 (24)와냉동실증발기 (17)가상기 냉동실팽창변 (15)의 출구단에서 병렬연결되는구조를배제하지 않으며,상기절환밸브 (13)와 냉장실팽창변 (14)및냉장실증발기 (16)가제거된냉매순환시스템또한 배제하는것은아님을밝혀둔다.
[42] 이하에서는일례로서상기심온실증발기와냉동실증발기 (17)가직렬
연결되는구조로한정하여 설명하도록한다.
[43] 또한,제 1저장실은제 1냉각기에 의해소정의온도로제어될수있는저장실을 의미하고,제 2저장실은제 2냉각기에의해제 1저장실보다낮은온도로제어될수 있는저장실을의미하며 ,제 3저장실은제 3냉각기에의해제 2저장실보다낮은 온도로제어될수있는저장실로정의될수있음을밝혀둔다.
[44] 그리고,상기제 1냉각기는,제 1증발기와,열전소자를포함하는제 1열전소자중 적어도하나를포함하여 제 1저장실을냉각하는수단으로정의할수있다.상기 제 1증발기는상기 냉장실증발기 (16)를포함할수있다.
[45] 그리고,상기제 2냉각기는제 2증발기와제 2열전소자중적어도하나를
포함하여 제 2저장실을냉각하는수단으로정의할수있다.상기 제 2증발기는 상기 냉동실증발기 (17)를포함할수있다.
[46] 그리고,상기제 3냉각기는제 3증발기와제 3열전소자중적어도하나를 포함하여제 3저장실을냉각하는수단으로정의할수있다.
[47] 본발명에서는일례로,제 1저장실은제 1냉각기에의해영상의온도로제어될 수있는냉장실,제 2저장실은제 2냉각기에의해영하의온도로제어될수있는 냉동실,그리고,제 3저장실은제 3냉각기에의해후술하게될극저온 (cryogenic temperature)또는초저온 (ultrafrezing temperature)의온도로유지될수있는 심온실 (deep freezing compartment)이될수있다.
[48] 또한,본발명은제 1,2,3저장실이모두영하의온도로제어되는경우,
제 1,2, 3저장실이모두영상의온도로제어되는경우,및제 1,2저장실은영상의 온도로제어되고,제 3저장실은영하의온도로제어되는경우를배제하지 않는다.
[49] 이하에서는,일례로서상기제 1저장실이냉장실 ,상기제 2저장실이냉동실, 상기제 3저장실이심온실로제어될수있는경우로한정하여설명한다.
[5이 상기응축기 (12)에인접하는곳에는응축팬 (121)이장착되고,상기냉장실 증발기 (16)에인접하는곳에는냉장실팬 (161)이장착되며,상기냉동실 증발기 (17)에인접하는곳에는냉동실팬 (1기)이장착된다.
[51] 한편,본발명의실시예에따른냉매순환시스템이구비되는냉장고의
내부에는,상기냉장실증발기 (16)에서생성되는냉기에의하여냉장온도로 유지되는냉장실과,상기냉동실증발기 (16)에서생성되는냉기에의하여냉동 온도로유지되는냉동실,및후술하게될열전모듈에의하여극저온 (cryogenic) 또는초저온 (ultrafrezing)의온도로유지되는심온실 (dee freezing
compartment)(202)이형성된다.
[52] 상기냉장실과냉동실은상하방향또는좌우방향으로인접하여배치될수 있고,구획벽에의하여서로구획된다.그리고,상기심온실은상기냉동실 내부의일측에구비될수있다.상기심온실의냉기와상기냉동실의냉기가 서로열교환하는것을차단하기위하여단열성능이높은심온케이스 (201)에 의하여상기심온실 (202)은상기냉동실로부터구획될수있다.
[53] 또한,상기열전모듈은,전원이공급되면한쪽면은열을흡수하고반대면은 열을방출하는특징을보이는열전소자 (21)와,상기열전소자 (21)의흡열면에 장착되는콜드싱크 (cold sink)(22)와,상기열전소자 (21)의발열면에장착되는 히트싱크 (heat sink)와,상기콜드싱크 (22)와히트싱크간의열교환을차단하는 단열재 (23)를포함할수있다.
[54] 여기서,상기심온실증발기 (24)는상기열전소자 (21)의발열면에접촉되어 히트싱크로서기능한다.즉,상기열전소자 (21)의발열면으로전달되는열은 상기심온실증발기 (24)내부를흐르는냉매와열교환한다.그리고,상기심온실 증발기 (24)내부를따라흐르면서상기열전소자 (21)의발열면으로부터열을 흡수한냉매는상기냉동실증발기 (17)로유입된다.이하에서는상기심온실 증발기 (24)를히트싱크로정의한다.
[55] 또한,상기콜드싱크 (22)의전방에는냉각팬이구비될수있고,상기냉각팬은 2020/175821 1»（：1^1{2020/002067 상기심온실내부후측에 배치되므로심온실팬 (25)으로정의할수있다.
[56] 상기심온실팬 (25)은축방향으로공기를흡입하여반경 방향으로토출시키는 석션타입원심 팬일수있고,구체적으로터보팬을포함할수있다.
[57] 상기콜드싱크 (22)는상기심온실 (202)내부후방에 배치되어상기
심온실 (202)의 냉기에 노출되도록구성된다.따라서,상기심온실팬 (25)이 구동하여상기심온실 (202)냉기를강제순환시키면,상기콜드싱크 (22)는상기 심온실냉기와열교환을통하여 열을흡수한다음상기 열전소자 (21)의 흡열면으로전달하는기능을한다.그리고,상기흡열면으로전달된열은상기 열전소자 (21)의 발열면으로전달된다.
[58] 그리고,상기히트싱크 (24)는상기 열전소자 (21)의흡열면에서흡수되어상기 열전소자 (21)의 발열면으로전달된열을다시흡수하여상기 열전모듈 (20) 외부로방출시키는기능을한다.
[59] 도 2는본발명의실시예에따른냉장고의 냉동실과심온실구조를보여주는 사시도이고,도 3은도 2의 3-3을따라절개되는종단면도이다.
[6이 도 2및도 3을참조하면,본발명의실시예에 따른냉장고는냉동실 (102)을 정의하는인너 케이스 (101)와,상기 냉동실 (102)의 내부일측에장착되는심온 냉동유닛 (200)을포함한다.
[61] 상세히，냉장실내부는약섭씨 3ᄋ (:내외로유지되고,상기 냉동실 (102)내부는 약 - 18ᄋ (:내외로유지되는반면,상기심온냉동유닛 (200)내부의온도,즉 심온실 (202)내부온도는약 -50°0내외로유지되어야한다.따라서 ,심온실 (202) 내부온도를 - 50ᄋ (:의극저온으로유지하기위해서는냉동실증발기 외에 열전 모듈 (20)과같은부가적인냉동수단이필요하다.
[62] 더욱상세히，상기심온냉동유닛 (200)은,내부에심온실 (202)을형성하는심온 케이스 (201)와,상기심온케이스 (201)내부에슬라이딩삽입되는심온실 드로어 (203),및상기심온케이스 (201)의후면에장착되는열전모듈 (20)을 포함한다.
[63] 또한,상기 인너 케이스 (101)의후면은후방으로단차져서,상기 냉동실
증발기 (17)가수용되는냉동증발실 (104)을형성한다.그리고,구획벽 (103)에 의하여상기 인너 케이스 (101)의 내부공간이상기 냉동증발실 (104)과 냉동실 (102)로구획된다.그리고,상기 열전모듈 (20)은상기구획벽 (103)의 전면에고정장착되고,일부가상기심온케이스 (201)를관통하여상기 심온실 (202)내부에수용된다.
[64] 상세히 ,상기 열전모듈 (20)을구성하는상기 히트싱크 (24)는,상술한바와 같이,상기 냉동실팽창변 (15)에 연결되는심온실증발기일수있다.
[65] 그리고,상기 열전모듈 (20)은,상기 히트싱크 (24)를수용하는하우징 (27)을더 포함할수있다.그리고,상기구획벽 (103)에는하우징 (27)이삽입되기 위한 삽입홀이 형성될수있다.
[66] 상기히트싱크 (24)내부에는냉동실팽창변 (15)을통과하면서 -18°0 ~ -30°0 정도로냉각된 2상냉매가흐르므로,상기히트싱크 (24)의표면온도는 -18°C~ -30OC로유지된다.여기서,냉동실팽창변 (15)을통과한냉매의온도와압력은 냉동실온도조건에따라달라질수있음을밝혀둔다.
[67] 그리고,상기히트싱크 (24)의전면에상기열전소자 (21)의후면이접촉되고, 상기열전소자 (21)에전원이인가되면상기열전소자 (21)의후면은발열면이 된다.
[68] 그리고,상기열전소자의전면에는상기콜드싱크 (22)가접촉되고,상기열전 소자 (21)에전원이인가되면상기열전소자 (21)의전면은흡열면이된다.
[69] 상기콜드싱크 (22)는알루미늄소재로이루어지는열전도판과,상기
열전도판의전면에서연장되는다수의열교환핀 (fin)을포함할수있고,상기 다수의열교환핀은수직하게연장되고가로방향으로이격배치될수있다. 이 그리고,상기콜드싱크 (22)의전방에는상기심온실팬 (25)이배치되어,상기 심온실 (202)내부공기를강제순환시킨다.
[71] 또한,상기구획벽 (103)은,냉동실냉기에노출되는그릴팬 (grille pan)(51)과, 상기그릴팬 (51)의후면에부착되는쉬라우드 (shroud)(56)를포함할수있다. 2] 그리고,상기하우징 (27)이끼워지는삽입홀은,상기열전모듈의직후방에 해당하는상기그릴팬 (51)에형성될수있다.
3] 상기그릴팬 (51)의전면에는냉동실측토출그릴들 (511, 512)이상하로
이격되어돌출형성되고,상기냉동실측토출그릴들 (511,512)사이에해당하는 상기그릴팬 (51)의전면에는모듈슬리브 (53)가돌출형성된다.상기모듈 슬리브 (53)의내부에는상기열전모듈 (20)이수용되는열전모듈수용공간이 형성된다.
4] 더욱상세히,상기모듈슬리브 (53)의내부에는유동가이드 (532)가원통형상 또는다각통형상으로구비될수있고,상기유동가이드 (532)의내부는팬 그릴부 (fan grille part)(536)에의하여전방공간과후방공간으로구획될수있다. 상기팬그릴부 (536)에는다수의공기통과홀이형성될수있다.
5] 그리고,상기모듈슬리브 (53)와상기유동가이드 (532)사이,즉상기유동
가이드 (532)의상측과하측에에는심온실측토출그릴 (533, 534)이각각형성될 수있다.
6] 그리고,상기팬그릴부 (536)의후방에해당하는상기유동가이드 (532)의
내부에는상기심온실팬 (25)이수용될수있다.그리고,상기팬그릴부 (536)의 전방공간에해당하는상기유동가이드 (532)부분은,심온실냉기가상기심온실 팬 (25)으로흡입되도록냉기흐름을안내하는기능을한다.즉,상기유동 가이드 (532)의내측공간으로인입되어상기팬그릴부 (536)를통과한냉기는, 상기심온실팬 (25)의반경방향으로토출되면서상기콜드싱크 (22)와
열교환한다.그리고,상기콜드싱크 (22)와열교환하면서냉각되어상하 방향으로유동하는냉기는상기심온실측토출그릴 (533, 534)을통하여심온실로 다시토출된다. 2020/175821 1»（：1^1{2020/002067 7] 그리고,상기열전모듈수용공간은,상기유동가이드 (532)의후단 (또는
심온실팬 (25)의후단)으로부터상기그릴팬 (51)의후면사이의공간으로정의될 수있다.
[78] 여기서 ,상기히트싱크 (24)를수용하는상기하우징 (27)은상기구획벽 (103)의 후면으로부터후방으로돌출되어상기냉동증발실 (104)내에놓인다.따라서, 상기하우징 (27)의후면은냉동증발실 (104)냉기에노출되어,상기하우징 (27)의 표면온도는실질적으로냉동증발실내의냉기온도와동일또는유사한수준의 온도로유지된다.
9] 한편,상기열전모듈수용공간내에는상기콜드싱크 (22)가수용되고,상기 단열재 (23)와,열전소자 (21)및히트싱크 (24)는상기하우징 (27)내부에 수용되는구조로이루어질수있다.
[8이 그리고,상기열전모듈수용공간의바닥부에는드레인히터 (40)가장착되어 , 열전모듈의제상운전 (심온실제상)중에상기콜드싱크 (22)로부터분리되는 얼음을녹여서제상수로변환시키는기능을한다.
[81] 한편,심온실측토출그릴 (533, 534)은,상부토출그릴 (533)과하부토출
그릴 (534)을포함할수있다.그리고,상기상부토출그릴 (533)의출구단에는 가이드덕트 (60)가장착될수있고,상기심온케이스 (201)의천장에는상기 가이드덕트 (60)를수용하는함몰부 (후술함)가형성될수있다.
[82] 그리고,상기심온실 (202)내부의냉기는,상기심온실팬 (25)의축방향으로
흡입되어,상기콜드싱크 (22)와열교환한뒤，상기심온실측토출
그릴 (533, 534)을통하여토출된다.특히,상기상부토출그릴 (533)을통하여 토출되는냉기는,상기가이드덕트 (60)를따라상기심온실 (202)의전방 영역까지안내된다.
[83] 상기가이드덕트 (60)의전단부는상기심온케이스 (201)의전단으로부터
후방으로소정간격이격되게설치될수있다.
[84] 상기가이드덕트 (60)와상기심온케이스 (201)의천장부분의구조에대해서는 아래에서도면을참조하여더욱상세히설명하도록한다.
[85] 도 4는본발명의실시예에따른심온실의내부에장착되는가이드덕트의
사시도이다.
[86] 도 4를참조하면,본발명의실시예에따른가이드덕트 (60)는,상기심온
케이스 (201)의천장에장착되며,상기상부토출그릴 (533)의토출단과연통한다.
[87] 상세히 ,상기가이드덕트 (60)는,다수의냉기토출구 (65)가형성되는
바닥부 (61)와,상기바닥부 (61)의전단에서상측으로연장되는전면부 (63)와, 상기바닥부 (61)의양측단에서상측으로연장되는측면부 (62)를포함할수있다.
[88] 상기전면부와측면부는단일의리브형태로이루어지고,상기바닥부 (61)의 가장자리를따라둘러진다.상기전면부와측면부를가장자리벽으로정의할수 있다.
[89] 그리고,상기가이드덕트 (60)의후면부는개구되어냉기유입구 (66)를 2020/175821 1»（：1^1{2020/002067 형성하고,상기가이드덕트 (60)의상면부는개구되어상기심온케이스 (201)의 천장에의하여차폐된다.
[9이 또한,상기바닥부 (61)에는하나또는다수의체결보스 (64)가돌출될수있다. 일례로,상기체결보스는상기바닥부 (61)의중앙부후단과중앙부전단에 가까운지점에서돌출될수있고,상기바닥부 (61)의정중앙에도돌출형성될수 있을것이다.
[91] 그리고,상기다수의냉기토출구들 (65)은,도시된바와같이 ,상기
바닥부 (61)의후단부에서전단부를향하여상기바닥부 (61)의길이방향으로 다수열을형성할수있다.그리고,각열마다,상기바닥부 (61)를폭방향으로 이등분하는선을기준으로좌측과우측에각각두개씩형성될수있으나, 하나의냉기토출구가상기바닥부의폭방향으로길게형성되는것을배제하지 않으며, 1열에 3개이상의토출구가상기바닥부 (61)의폭방향으로배열되는 것도배제하지않는다.
[92] 또한,상기다수의냉기토출구들 (65)은,상기가이드덕트 (60)의후단에서
전단으로갈수록면적이증가하는형태로형성될수있다.
[93] 이는,상기가이드덕트 (60)의전단부로갈수록상기심온실팬 (25)으로부터 멀어지기때문에,풍압이감소하여,가이드덕트 (60)의후단부에가까운냉기 토출구에서토출되는냉기의양과전단부에가까운냉기토출구에서토출되는 냉기의양이균일하지않을수있다.
[94] 이러한현상을최소화하기위해서 ,상기가이드덕트 (60)의후단에가까운 지점,즉상기심온실팬 (25)에가까운지점에형성되는냉기토출구의크기또는 면적은상기심온실팬 (25)으로부터멀리있는지점에형성되는냉기토출구의 크기또는면적보다작게형성되도록할수있다.
[95] 다른방법으로,상기가이드덕트 (60)의길이방향으로인접하는냉기
토출구들의간격이,상기가이드덕트 (60)의후단으로부터멀어질수록좁게 배열되도록하는것도가능하다.
[96] 또한,상기바닥부 (61)의후단은하측으로경사지거나라운드지게형성되어, 상기유동가이드 (532)의상단에안착되는형태로결합될수있다.그러면,상기 상부토출그릴 (533)의토출구와상기가이드덕트 (60)의냉기유입구 (66)가 맞닿아서로연통하게된다.
[97] 도 5는본발명의실시예에따른심온케이스의천장을형성하는케이스커버의 저면사시도이다.
[98] 도 5를참조하면,상기가이드덕트 (60)는상기심온케이스 (201)의천장을
형성하는케이스커버 ( 0)에고정장착된다.
[99] 상세히 ,상기케이스커버 (210)는,상면부 (211)와,상기상면부 (211)의양
측단에서하측으로연장되는측면부 (212)와,상기상면부 (211)의후단에서 하측으로연장되는후면부 (213)를포함할수있다.
[100] 그리고,상기후면부 (213)중앙에는냉기안내홈 (214)이상측으로함몰형성될 2020/175821 1»（：1^1{2020/002067 수있고,상기상면부 (211)에는상기가이드덕트 (60)가장착되는덕트 결합홈 (215)이함몰또는단차지게형성될수있다.
[101] 그리고,상기냉기안내홈 (214)은상기덕트결합홈 (215)내부까지소정길이 연장형성될수있다.
[102] 그리고,상기냉기안내홈 (214)의폭은상기상부토출그릴 (533)의폭과
동일하게형성되거나,상기상부토출그릴 (533)의폭보다약간크게형성되어 , 상기후면부 (213)가상기상부토출그릴 (533)의상면과측면을감싸는형태로 설계될수있다.
[103] 상기덕트결합홈 (215)은,상기가이드덕트 (60)의상면부의폭과길이에
대응하는폭과길이를가질수있고,상기가이드덕트 (60)의전면부 (63)와 측면부 (62)의높이에대응하는깊이로함몰또는단차지게형성될수있다.
[104] 또한,상기덕트결함홈 (215)의중앙에해당하는상기케이스커버 (210)의 상면에는상기가이드덕트 (60)의체결보스 (64)와결합하는다수의체결 보스 (216)가돌출형성될수있다.
[105] 따라서 ,스크류와같은체결부재는상기가이드덕트 (60)의외부하측에서 상기체결보스 (64)를관통한뒤,상기케이스커버 (210)의체결보스 (216)에 삽입될수있다.
[106] 이와같이,상기케이스커버 (2110)에덕트결합홈 (215)이형성되고,상기덕트 결합홈 (215)에상기가이드덕트 (60)가결합됨으로써,심온실내부로냉기를 공급하기위한독립유로가형성된다.그리고,상기독립유로는심온실에 수납되는음식물에의한유동저항을받지않으므로,심온실내부가균일하게 냉각되는장점이있다.
[107] 도 6은본발명의다른실시예에따른가이드덕트의사시도이다.
[108] 도 6을참조하면,본실시예에따른가이드덕트 (60 는,대부분의구성이도 4에개시되는가이드덕트 (60)와동일하고,다만가이드덕트의폭과,케이스 커버와의결합방식에차이가있다.
[109] 상세히,상기가이드덕트 (60幻는,바닥부 (61)와,전면부 (63),측면부 (62)및 후면부 (64)를포함하고,상기후면부에는냉기유입구 (66)가형성된다.상기 전면부 (63)와측면부 (62)및후면부 (64)는가장자리벽으로정의될수있다.
[110] 그리고,상기바닥부 (61)에는다수의냉기토출구 (65)가형성되며,상기냉기 토출구의형성방법은도 4에서설명한바와동일하다.
[111] 한편,상기가이드덕트 (60幻의측면부 (62)의외면에는다수의체결돌기 (67)가 돌출될수있고,상기다수의체결돌기 (67)는상기가이드덕트 (60)의길이 방향으로이격배치될수있다.
[112] 도 7은본발명의다른실시예에따른케이스커버의저면사시도이다.
[113] 상기케이스커버 ( 0幻에는도 6에개시되는가이드덕트 (60幻가결합된다.
[114] 도 7을참조하면,본실시예에따른케이스커버 ( 0幻는도 5에개시되는
케이스커버 ( 0)와구조가동일하되,일부부분에있어서차이가있다. 2020/175821 1»（：1^1{2020/002067
[115] 구체적으로,상기케이스커버 ( 0幻의상면부 (211)에형성되는덕트
결합홈 (215)의폭이상기도 5에개시되는덕트결합홈 (215)의폭보다크게 형성될수있다.이는,상기도 6에개시되는가이드덕트 (60幻의폭이도 4에 개시되는가이드덕트 (60)의폭보다크기때문이다.
[116] 또한,상기덕트결합홈 (215)의측면에는다수의돌기삽입구 (217)가형성되고, 상기다수의돌기삽입구 (217)에는상기가이드덕트 (60幻의체결돌기들 (67)이 각각삽입된다.
[117] 상기가이드덕트 (60幻의전면부 (63)에도체결돌기가돌출될수있으며,상기 전면부 (63)에돌출되는돌기부는상기심온케이스부분에삽입된다.
구체적으로,상기케이스커버 ( 0幻가결합되는상기심온케이스 (201)의천장 전단부에상기전면부 (63)에돌출될돌기부가삽입되기위한홈이형성될수 있다.

Claims

2020/175821 1»（：1^1{2020/002067 청구범위
[청구항 1] 냉장실;
상기 냉장실과구획되는냉동실;
상기 냉동실내부일측에장착되며,상기 냉동실과구획되는심온실을 정의하는심온케이스와,상기심온실내부에삽입되는심온실드로어를 포함하는심온냉동유닛;
상기심온케이스의후측에 형성되는냉동증발실;
상기 냉동증발실과상기 냉동실을구획하고,상기심온실내부로냉기를 토출하는심온실측토출그릴과,상기 냉동실내부로냉기를토출하는 냉동실측토출그릴을포함하는구획벽 ;
상기 냉동증발실에수용되어 ,상기 냉동실냉각을위한냉기를생성하는 냉동실증발기 ;
상기 냉동증발실냉기를상기 냉동실로공급하도록구동하는냉동실팬; 상기심온실을향하는흡열면과,상기흡열면의 반대면으로정의되는 발열면을포함하는열전소자와,상기흡열면에 접촉하며,상기심온실 후방에놓이는콜드싱크와,상기발열면에 접촉하고,상기 냉동실 증발기와직렬연결되는심온실증발기로정의되는히트싱크를 포함하고,상기심온실의온도를냉동실온도보다낮은온도로
냉각하도록제공되는열전모듈;
상기심온실내부의 공기를강제유동시키는심온실팬;
상기심온케이스의 천장에장착되고,상기심온실측토출그릴과 연통하는가이드덕트를포함하는냉장고.
[청구항 2] 제 1항에 있어서,
상기심온실측토출그릴은,
상기심온실후면상측에 형성되는상측토출그릴과,
상기심온실후면하측에 형성되는하측토출그릴을포함하고, 상기 가이드덕트는상기상측토출그릴과연통하는것을특징으로하는 냉장고.
[청구항 3] 제 2항에 있어서,
상기 가이드덕트는,
다수의 냉기토출구가형성되는바닥부와,
상기 바닥부의가장자리를따라상측으로연장되는가장자리 벽을 포함하고,
상기 가이드덕트의후면부에는냉기유입구가형성되며, 상기 냉기유입구는상기상측토출그릴의토출구에 연결되는것을 특징으로하는냉장고.
[청구항 4] 제 3항에 있어서, 2020/175821 1»（：1^1{2020/002067 상기다수의냉기토출구는,
상기바닥부의후단에서전단방향으로다수열을형성하고,
각열에형성되는냉기토출구는상기바닥부의폭방향으로하나또는 다수개인것을특징으로하는냉장고.
［청구항 5］ 제 4항에있어서,
상기바닥부의후단에서전단방향으로갈수록상기냉기토출구의 면적이증가하는것을특징으로하는냉장고.
［청구항 6］ 제 4항에있어서,
상기바닥부의길이방향으로인접하는냉기토출구들의간격은,상기 바닥부의후단에서전단으로갈수록좁아지는것을특징으로하는 냉장고.
［청구항 7］ 제 3항에있어서,
상기심온케이스의천장을형성하고,내측에상기가이드덕트가 장착되기위한덕트결합홈이형성되는케이스커버를포함하는냉장고. ［청구항 8］ 제 7항에있어서,
상기가이드덕트는,
상기바닥부에서돌출되는하나또는다수의체결보스를더포함하고, 상기케이스커버는,
상기덕트결합홈에서돌출되고,상기가이드덕트의체결보스와 연결되는다수의체결보스를포함하는냉장고.
［청구항 9］ 제 7항에있어서,
상기가이드덕트는,
상기가장자리벽의외측면을따라형성되는다수의돌기부를포함하고, 상기케이스커버는,
상기덕트결합홈의측면부를따라형성되어,상기다수의돌기부가 삽입되는돌기삽입구를포함하는냉장고.
［청구항 1이 제 1항에있어서,
상기가이드덕트의전단은,상기심온케이스의전단으로부터후방으로 소정거리이격되는것을특징으로하는냉장고.
［청구항 11］ 제 1항에있어서,
상기심온실팬은,
상기열전모듈쪽으로냉기를흡입하여상기심온실측토출그릴로 토출하는석션타입원심팬을포함하는냉장고.
PCT/KR2020/002067 2019-02-28 2020-02-13 냉장고 WO2020175821A1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/433,429 US20220146155A1 (en) 2019-02-28 2020-02-13 Refrigerator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0023894 2019-02-28
KR1020190023894A KR20200105152A (ko) 2019-02-28 2019-02-28 냉장고

Publications (1)

Publication Number Publication Date
WO2020175821A1 true WO2020175821A1 (ko) 2020-09-03

Family

ID=72239692

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2020/002067 WO2020175821A1 (ko) 2019-02-28 2020-02-13 냉장고

Country Status (3)

Country Link
US (1) US20220146155A1 (ko)
KR (1) KR20200105152A (ko)
WO (1) WO2020175821A1 (ko)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09257355A (ja) * 1996-03-21 1997-10-03 Matsushita Refrig Co Ltd 冷蔵庫
JP2002228332A (ja) * 2001-02-02 2002-08-14 Sanyo Electric Co Ltd 冷蔵庫
KR100872856B1 (ko) * 2006-03-14 2008-12-10 엘지전자 주식회사 냉장고용 수납박스 냉기공급구조
KR20180080652A (ko) * 2017-01-04 2018-07-12 엘지전자 주식회사 냉장고 및 냉장고에 설치되는 심온 냉동칸

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102330783B1 (ko) 2017-06-01 2021-11-25 엘지전자 주식회사 냉장고

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09257355A (ja) * 1996-03-21 1997-10-03 Matsushita Refrig Co Ltd 冷蔵庫
JP2002228332A (ja) * 2001-02-02 2002-08-14 Sanyo Electric Co Ltd 冷蔵庫
KR100872856B1 (ko) * 2006-03-14 2008-12-10 엘지전자 주식회사 냉장고용 수납박스 냉기공급구조
KR20180080652A (ko) * 2017-01-04 2018-07-12 엘지전자 주식회사 냉장고 및 냉장고에 설치되는 심온 냉동칸

Also Published As

Publication number Publication date
KR20200105152A (ko) 2020-09-07
US20220146155A1 (en) 2022-05-12

Similar Documents

Publication Publication Date Title
KR101649624B1 (ko) 냉장고
US10808983B2 (en) Refrigerator
KR101560147B1 (ko) 냉장고
US9267725B2 (en) Refrigerator
US9726417B2 (en) Refrigerator
US20140007612A1 (en) Refrigerator and heat exchanger for the same
CN110411070B (zh) 蒸发单元和具有蒸发单元的冰箱
KR100633149B1 (ko) 냉장고
WO2020175821A1 (ko) 냉장고
JP2005345061A (ja) 冷蔵庫
KR102630192B1 (ko) 냉장고
JP2005221144A (ja) 冷蔵庫
JP4197851B2 (ja) 冷蔵庫
CN211601289U (zh) 蒸发器设置方式改进的冰箱
JPH0771857A (ja) 冷蔵庫
JP4203662B2 (ja) 冷蔵庫
TWI658245B (zh) refrigerator
KR100414289B1 (ko) 냉장고의 냉기순환구조
CN112762650A (zh) 蒸发器设置方式改进的冰箱
KR20020015242A (ko) 냉장고의 냉기순환구조
KR100763152B1 (ko) 사이드 바이 사이드 타입 냉장고의 냉기 공급장치
KR100311370B1 (ko) 냉장고의냉기순환장치
KR20120072775A (ko) 냉기토출구를 가지는 냉장고
TR201611337A3 (tr) Soğutma i̇çi̇n opti̇mi̇ze edi̇lmi̇ş yapiya sahi̇p sifir derece bölmesi̇ i̇çeren soğutucu ci̇haz
KR20000011256U (ko) 냉장고의 선반 냉기공급장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20762634

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20762634

Country of ref document: EP

Kind code of ref document: A1