EP2696152A2 - Réfrigérateur et échangeur de chaleur pour celui-ci - Google Patents

Réfrigérateur et échangeur de chaleur pour celui-ci Download PDF

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Publication number
EP2696152A2
EP2696152A2 EP13175387.3A EP13175387A EP2696152A2 EP 2696152 A2 EP2696152 A2 EP 2696152A2 EP 13175387 A EP13175387 A EP 13175387A EP 2696152 A2 EP2696152 A2 EP 2696152A2
Authority
EP
European Patent Office
Prior art keywords
compressor
refrigerant
refrigerator
condenser
compartment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13175387.3A
Other languages
German (de)
English (en)
Other versions
EP2696152A3 (fr
EP2696152B1 (fr
Inventor
Ki Hyun Kim
Myoung Hun Kim
Hooi Joong Kim
Ho Choi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP2696152A2 publication Critical patent/EP2696152A2/fr
Publication of EP2696152A3 publication Critical patent/EP2696152A3/fr
Application granted granted Critical
Publication of EP2696152B1 publication Critical patent/EP2696152B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • 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
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0443—Combination of units extending one beside or one above the other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel

Definitions

  • Embodiments of the present disclosure relate to a refrigerator that individually cools a freezer compartment and a refrigerator compartment using two compressors and a refrigerating unit for the refrigerator.
  • a refrigerator is a home appliance that keeps food fresh by including a storage compartment for storing food and a refrigerating unit for supplying cold air to the storage compartment in a refrigerating cycle.
  • the storage compartment is divided into a refrigerator compartment in which food is refrigerated and a freezer compartment in which food is stored in a frozen state.
  • the refrigerating unit includes a compressor for compressing a gas refrigerant at a high temperature under a high pressure, a condenser for condensing the compressed refrigerant into a liquid state, an expansion valve for expanding the condensed refrigerant, and an evaporator for evaporating a liquid refrigerant so as to generate cold air.
  • a refrigerator according to the related art circulates one refrigerating cycle using one compressor so as to cool the refrigerator compartment and the freezer compartment in different temperature ranges.
  • the evaporator of the storage compartment is subcooled, and waste of power consumption occurs.
  • a refrigerator including a body; a first storage compartment formed in the body; a second storage compartment that is formed in the body and insulated from the first storage compartment; a first refrigerating unit including a first compressor for compressing a first refrigerant, a first expansion valve for expanding the first refrigerant, and a first evaporator for evaporating the first refrigerant, the first refrigerating unit supplying cold air to the first storage compartment; a second refrigerating unit including a second compressor for compressing a second refrigerant, a second expansion valve for expanding the second refrigerant, and a second evaporator for evaporating the second refrigerant, the second refrigerating unit supplying cold air to the second storage compartment; and a dual path condenser including a tube, the tube including a body and a plurality of channels formed in the body, wherein portions of the plurality of channels constitute a first condensation path on which the first refrig
  • the tube may be formed as one body.
  • the dual path condenser may further include a first inlet through which the first refrigerant is introduced; a first outlet through which the first refrigerant flows out after passing through the first condensation path and being condensed; a second inlet through which the second refrigerant is introduced; and a second outlet through which the second refrigerant flows out after passing through the second condensation path and being condensed.
  • the dual path condenser may further include at least one header in which the first inlet, the first outlet, the second inlet and the second outlet are formed.
  • Each of the heat dissipation fins may have a width corresponding to a width of the tube, and the heat dissipation fins may be formed as one body.
  • the refrigerator may further include a machine compartment formed in the body, and the first compressor, the second compressor, and the dual path condenser may be disposed in the machine compartment.
  • the refrigerator may further include a blower fan disposed in the machine compartment so as to cool the first compressor, the second compressor, and the dual path condenser.
  • the first compressor may be disposed at one side of an inside of the machine compartment
  • the second compressor may be disposed at the other side of the inside of the machine compartment
  • the dual path condenser and the blower fan may be disposed between the first compressor and the second compressor.
  • the blower fan may allow air to forcibly flow from one of the first compressor and the second compressor having a relatively small amount of heat generation toward the other one of the first compressor and the second compressor.
  • FIG, 1 is a view illustrating a refrigerating cycle of a refrigerator 1 according to an embodiment of the present disclosure
  • FIG. 2 is a view illustrating an arrangement structure of a refrigerating unit of the refrigerator 1 according to an embodiment of the present disclosure
  • FIG, 3 is a cross-sectional view illustrating an arrangement structure of a machine compartment of the refrigerator 1 of FIG. 2
  • FIG. 4 is a cross-sectional view illustrating another arrangement structure of a machine compartment of the refrigerator 1 according to an embodiment of the present disclosure.
  • the refrigerator 1 includes a body 10, a plurality of storage compartments 21 and 22 formed in the body 10 so as to store food, and a refrigerating unit that supplies cold air to the storage compartments 21 and 22.
  • the body 10 may include an inner case (see 11 of FIG. 6 ), an outer case (see 12 of FIG. 6 ) combined with an outer side of the inner case 11, and a heat insulating material (see 13 of FIG. 6 ) disposed between the inner case 11 and the outer case 12.
  • the plurality of storage compartments 21 and 22 are formed in the inner case 11, and the inner case 11 may be formed of a resin as one body.
  • the outer case 12 forms the exterior of the refrigerator 1 and may be formed of a metal so as to be aesthetically appealing and durable.
  • the heat insulating material 13 may be a urethane foam and may be formed by injecting a urethane undiluted solution into the space between the inner case 11 and the outer case 12 after the inner case 11 and the outer case 12 are combined with each other and by foaming and hardening the urethane undiluted solution.
  • the body 10 may have the shape of a box having an approximately open front side.
  • the body 10 may have an upper wall 14, a bottom wall 15, a rear wall 19, and both sidewalls 16.
  • the body 10 may have an intermediate wall 18 that partitions the inner space of the body 10 off in right and left directions.
  • the storage compartments 21 and 22 may be divided into a right, first storage compartment 21 and a left, second storage compartment 22 by the intermediate wall 18.
  • the intermediate wall 18 includes the heat insulating material 13, and the first storage compartment 21 and the second storage compartment 22 may be insulated from each other.
  • first storage compartment 21 and the second storage compartment 22 are disposed so that their front sides are open, the open front side of the first storage compartment 21 may be opened or closed by a first door 21a, and the open front side of the second storage compartment 22 may be opened or closed by a second door 22a.
  • the first door 21a and the second door 22a may be hinge-coupled to the body 10 and may rotate.
  • the body 10 further includes a front border wall (see 17 of FIG. 8 ), and the first door 21a and the second door 22a closely contact the front border wall 17 so as to seal the first storage compartment 21 and the second storage compartment 22.
  • the first door 21a and the second door 22a may include the heat insulating material 13 so as to insulate the first storage compartment 21 and the second storage compartment 22 from each other.
  • the refrigerator 1 may be a so-called side-by-side refrigerator in which the first storage compartment 21 is formed in a right inner side of the body 10, the second storage compartment 22 is formed in a left inner side of the body 10, and each of the compartments 21 and 22 is opened or closed by the rotating first and second doors 21a and 22a that are hinge-coupled to the body 10.
  • refrigerators according to other embodiments will be described on the assumption that they are side-by-side refrigerators.
  • the spirit of the present disclosure is not limited to these side-by-side refrigerators, and any type of a refrigerator having a plurality of storage compartments 21 and 22 may be used.
  • the first storage compartment 21 and the second storage compartment 22 may be used for different purposes. That is, the first storage compartment 21 may be used as a freezer compartment, which is maintained at a temperature of about -20 °C or less and in which food can be kept in a frozen state, and the second storage compartment 22 may be used as a refrigerator compartment, which is maintained at a temperature of about 0 °C to 5 °C and in which food can be refrigerated.
  • the purposes of the first storage compartment 21 and the second storage compartment 22 may be changed. However, the following description is on the assumption that the first storage compartment 21 is used as a freezer compartment and the second storage compartment 22 is used as a refrigerator compartment.
  • the refrigerating unit of the refrigerator 1 may circulate a plurality of individual refrigerating cycles so as to individually cool the first storage compartment 21 and the second storage compartment 22.
  • the refrigerating unit may include a first refrigerating unit that supplies cold air to the first storage compartment 21 and a second refrigerating unit that supplies cold air to the second storage compartment 22.
  • the first refrigerating unit may circulate a first refrigerant
  • the second refrigerating unit may circulate a second refrigerant that is separate from the first refrigerant.
  • names such as the first refrigerant and the second refrigerant, are used only to differentiate refrigerants that circulate in different refrigerating cycles through different refrigerating units from each other, and it does not mean that the types of the first refrigerant and the second refrigerant are different from each other. That is, the first refrigerant and the second refrigerant may be of the same type or different types.
  • the first refrigerant and the second refrigerant may be one selected from the group including R-134a, R-22, R-12, and ammonia.
  • the first refrigerating unit may include a first compressor 32 for compressing the first refrigerant at a high temperature under a high pressure, a first condenser 33 for condensing the first refrigerant from a gaseous state to a liquid state, a first expansion valve 34 for expanding the first refrigerant at a low temperature under a low pressure, a first evaporator 35 for evaporating the first refrigerant from a liquid state to a gaseous state, a first refrigerant pipe 36 for guiding the first refrigerant to elements of the first refrigerating unit successively, and a first blower fan 37 that forcibly causes the air of the first storage compartment 21 to flow.
  • a first compressor 32 for compressing the first refrigerant at a high temperature under a high pressure
  • a first condenser 33 for condensing the first refrigerant from a gaseous state to a liquid state
  • a first expansion valve 34 for expanding the first refrigerant at
  • the first evaporator 35 may evaporate the first refrigerant and may take peripheral latent heat so as to generate cold air, and the generated cold air may be supplied to the first storage compartment 21 through the first blower fan 37.
  • the first compressor 32 may be a hermetic reciprocation acting compressor, and the first condenser 33 may be an air-cooled condenser having heat dissipation fins and a tube.
  • the first compressor 32 and the first condenser 33 may be disposed in a machine compartment 23 formed in a lower portion of the body 10.
  • the machine compartment 23 is partitioned off from the storage compartments 21 and 22 and is insulated therefrom.
  • One side of the machine compartment 23 is open, and a machine compartment cover 25 may be detachably combined with the open side of the machine compartment 23.
  • Ventilators 26a and 26b may be formed in the machine compartment cover 25.
  • the ventilators 26a and 26b may include an inlet 26a through which the air is introduced and an outlet 26b through which the air flows out.
  • a machine compartment blower fan 24 may be disposed in the machine compartment 23.
  • the second refrigerating unit may include a second compressor 42 for compressing the second refrigerant at a high temperature under a high pressure, a second condenser 43 for condensing the second refrigerant from a gaseous state to a liquid state, a second expansion valve 44 for expanding the second refrigerant at a low temperature under a low pressure, a second evaporator 45 for evaporating the second refrigerant from a liquid state to a gaseous state, a second refrigerant pipe 46 for guiding the second refrigerant to elements of the second refrigerating unit successively, and a second blower fan 47 that forcibly causes the air of the second storage compartment 22 to flow.
  • a second compressor 42 for compressing the second refrigerant at a high temperature under a high pressure
  • a second condenser 43 for condensing the second refrigerant from a gaseous state to a liquid state
  • a second expansion valve 44 for expanding the second refrigerant at
  • the second evaporator 45 may evaporate the second refrigerant and may take peripheral latent heat so as to generate cold air.
  • the generated cold air may be supplied to the second storage compartment 22 through the second blower fan 47.
  • the second compressor 42 may be a hermetic reciprocation acting compressor that is the same as the first compressor 32. However, the second compressor 42 has a smaller load than the first compressor 32 and thus may have a smaller size than the first compressor 32. Also, the second compressor 42 may be disposed in the machine compartment 23 together with the first compressor 32 and the first condenser 33. The second compressor 42 may be cooled by forcible flow of air caused by the machine compartment blower fan 24 together with the first compressor 32 and the first condenser 33.
  • the second condenser 43 may not be disposed in the machine compartment 23, unlike the first compressor 32, the first condenser 33, and the second compressor 42. Also, the second condenser 43 may be a heat dissipation pipe 43a, unlike the first condenser 33. Additional heat dissipation fins may not be attached to the heat dissipation pipe 43a. Instead, the heat dissipation pipe 43a may have a shape that is bent in a zigzag form several times, so as to increase a heat dissipation area.
  • the heat dissipation pipe 43a may be disposed on an outer side of the rear wall 19 of the body 10 so as to be exposed to the outside, as illustrated in FIG. 2 . Furthermore, the heat dissipation pipe 43a may be attached to the outer surface of the outer case 12 so that heat of the heat dissipation pipe 43a can be transferred to the outer case 12 and the heat dissipation area can be further increased.
  • the heat dissipation pipe 43a may be cooled by natural convection of air.
  • the first compressor 32, the first condenser 33, the second compressor 42, and the second condenser 43 are disposed in the machine compartment 23 but the first compressor 32, the first condenser 33, and the second compressor 42 are disposed in the machine compartment 23, and the second condenser 43 is disposed outside the machine compartment 23 so that complexity of the machine compartment 23 can be avoided and a heat dissipation effect can be improved.
  • all of the first compressor 32, the first condenser 33, the second compressor 42, and the second condenser 43 may be disposed in the machine compartment 23; however, this causes a reduction in the space of the storage compartments 21 and 22 compared to the size of the body 10 and thus is not preferable.
  • the internal arrangement of the machine compartment 23 may be configured in such a way that the first compressor 32 is disposed at one side of the inside of the machine compartment 23 and the second compressor 42 is disposed at the other side of the inside of the machine compartment 23, as illustrated in FIGS. 2 and 3 . That is, the first compressor 32 may be disposed to be slanted toward one sidewall 16a of the machine compartment 23 from the center of the inside of the machine compartment 23, and the second compressor 42 may be disposed to be slanted toward the other sidewall 16b of the machine compartment 23 from the center of the inside of the machine compartment 23.
  • the first compressor 32 is disposed at a lower side of the first storage compartment 21, and the second compressor 42 is disposed at a lower side of the second storage compartment 22.
  • aspects of the present disclosure are not limited thereto, and the positions of the first compressor 32 and the second compressor 42 may be changed. However, in consideration of a load applied to the bottom wall 15, it is sufficient if the first compressor 32 and the second compressor 42 are disposed at both sides of the machine compartment 23.
  • first condenser 33 and the machine compartment blower fan 24 may be disposed between the first compressor 32 and the second compressor 42 in approximately one straight line.
  • first compressor 32, the machine compartment blower fan 24, the first condenser 33, and the second compressor 42 are successively disposed.
  • first compressor 32, the first condenser 33, the machine compartment blower fan 24, and the second compressor 42 may be successively disposed, as illustrated in FIG. 4 .
  • the machine compartment blower fan 24 may include fan wings 24a that forcibly cause the air to flow and a fan motor 24b that drives the fan wings 24a.
  • the machine compartment blower fan 24 may be an axial flow fan in which a direction of wind is the same as a direction of a rotation shaft.
  • the air flow direction of the machine compartment 23 may be directed from the second compressor 42 toward the first compressor 32. That is, the air that is introduced into the machine compartment 23 through the inlet 26a may cool the second compressor 42, the first condenser 33, and the first compressor 32 successively and may flow out from the machine compartment 23 through the outlet 26b.
  • the machine compartment blower fan 24 absorbs the air from the first condenser 33 and ejects the air toward the first compressor 32, and in the arrangement structure of FIG. 4 , the machine compartment blower fan 24 absorbs the air from the second compressor 42 and ejects the air toward the first condenser 33.
  • FIG. 5 is a view illustrating an arrangement structure of a refrigerating unit of a refrigerator 2 according to another embodiment of the present disclosure
  • FIG. 6 is a view illustrating a state in which a heat dissipation pipe is installed at the refrigerator 2 of FIG. 5 .
  • FIGS. 5 and 6 The arrangement structure of a refrigerating unit of the refrigerator 2 according to another embodiment of the present disclosure will be described with reference to FIGS. 5 and 6 .
  • Like reference numerals are used for like elements from FIGS. 1 through 4 , and the description thereof may be omitted.
  • the refrigerating unit of the refrigerator 2 according to the present embodiment has the same configuration as the refrigerator 1 of FIG. 1 except for the position of a second condenser.
  • the second condenser is configured as a heat dissipation pipe 43b, and the heat dissipation pipe 43b may be disposed in a rear wall 19 of a body 10, unlike in FIGS. 1 through 4 .
  • the heat dissipation pipe 43b may be disposed between an inner case 11 and an outer case 12 of the rear wall 19.
  • the heat dissipation pipe 43b may be disposed to contact the inner surface of the outer case 12.
  • the heat dissipation pipe 43b may be attached to the inner surface of the outer case 12 using an aluminum tape 20 having high thermal conductivity.
  • heat of a refrigerant that passes through the heat dissipation pipe 43b may be transferred to the outer case 12 via the aluminum tape 20 or may be dissipated through the outer case 12 by natural convection of air.
  • heat of the refrigerant that passes through the heat dissipation pipe 43b may be prevented from being transferred to the inner case 11 using a heat insulating material 13.
  • the risk of heat of the heat dissipation pipe 43b penetrating into storage compartments 21 and 22 can be prevented.
  • the heat dissipation pipe 43b may be attached to the inner surface of the outer case 12 using the aluminum tape 20 before the inner case 11 and the outer case 12 are combined with each other, and after the inner case 11 and the outer case 12 are combined with each other, the heat dissipation pipe 43b may be firmly supported by the heat insulating material 13 that foams and is hardened in the space between the inner case 11 and the outer case 12.
  • the heat dissipation pipe 43b is disposed between the inner case 11 and the outer case 12 and thus may not be exposed to the outside.
  • a sufficient arrangement space of the refrigerator 2 compared to the refrigerator 1 of FIG. 1 can be obtained, and the appearance of the refrigerator 2 can be improved.
  • FIG. 7 is a view illustrating an arrangement structure of a refrigerating unit of a refrigerator 3 according to another embodiment of the present disclosure
  • FIG. 8 is a view illustrating an arrangement structure of a refrigerating unit of a refrigerator 4 according to another embodiment of the present disclosure.
  • FIGS. 7 and 8 The arrangement structure of the refrigerating unit of the refrigerator 3 according to another embodiment of the present disclosure and the arrangement structure of the refrigerating unit of the refrigerator 4 according to another embodiment of the present disclosure will be described with reference to FIGS. 7 and 8 .
  • Like reference numerals are used for like elements from FIGS. 1 through 4 and FIGS. 5 and 6 , and the description thereof may be omitted.
  • a second condenser of the refrigerator 3 is configured as a heat dissipation pipe 43c, and the heat dissipation pipe 43c may be disposed on both sidewalls 16 of a body 10.
  • the heat dissipation pipe 43c may be disposed between an inner case (see 11 of FIG. 5 ) and an outer case (see 12 of FIG. 5 ), may be attached to the inner surface of the outer case 12 using an aluminum tape (see 20 of FIG. 5 ), and may be supported by a heat insulating material (see 13 of FIG. 5 ).
  • a second condenser of the refrigerator 4 is configured as a heat dissipation pipe 43d, and the heat dissipation pipe 43d may be disposed on a front border wall 17 of the body 10.
  • the heat dissipation pipe 43d may be disposed between an inner case (see 11 of FIG. 5 ) and an outer case (see 12 of FIG. 5 ), may be attached to the inner surface of the outer case 12 using an aluminum tape (see 20 of FIG. 5 ), and may be supported by a heat insulating material (see 13 of FIG. 5 ).
  • the heat dissipation pipe 43d may perform the function of preventing frost formation on the front border wall 17 due to a temperature change caused by opening/closing doors 21a and 22a.
  • the heat dissipation pipe 43d is disposed only in a place at which the second door 22a closely contacts the front border wall 17. However, of course, the heat dissipation pipe 43d may extend and may be installed at a place at which the first door 21a closely contacts the front border wall 17.
  • the refrigerating units illustrated in FIGS. 1 through 8 have been described.
  • the first compressor 32, the first condenser 33, and the second compressor 42 are cooled by forcible flow of air caused by the machine compartment blower fan 24, and the second condenser 43 is disposed outside the machine compartment 23 and is cooled by natural convection of air.
  • the refrigerating units can be disposed without increasing the capacity of the machine compartment 23, and energy consumed for heat dissipation of the machine compartment 23 can be reduced.
  • FIG. 9 is a view illustrating a refrigerating cycle of a refrigerator 5 according to another embodiment of the present disclosure
  • FIG. 10 is a view illustrating an arrangement structure of a refrigerating unit of the refrigerator 5 according to another embodiment of the present disclosure.
  • FIGS. 9 and 10 The refrigerating cycle of the refrigerator 5 and the structure of the refrigerating unit according to another embodiment of the present disclosure will be described with reference to FIGS. 9 and 10 .
  • Like reference numerals are used for like elements from FIGS. 1 through 8 , and the description thereof may be omitted.
  • the refrigerating unit of the refrigerator 5 may also circulate a plurality of individual refrigerating cycles so as to individually cool a first storage compartment 21 and a second storage compartment 22, as illustrated in FIGS. 1 through 8 .
  • the refrigerating unit may include a first refrigerating unit for supplying cold air to the first storage compartment 21 and a second refrigerating unit for supplying cold air to the second storage compartment 22.
  • the first refrigerating unit may circulate a first refrigerant
  • the second refrigerating unit may circulate a second refrigerant that is separate from the first refrigerant.
  • the first refrigerating unit may include a first compressor 32, a dual path condenser 101, a first expansion valve 34, a first evaporator 35, a first blower fan 37, and a first refrigerant pipe 36
  • the second refrigerating unit may include a second compressor 42, a dual path condenser 101, a second expansion valve 44, a second evaporator 45, a second blower fan 47, and a second refrigerant pipe 46.
  • the first refrigerating unit and the second refrigerating unit may share the dual path condenser 101 for condensing the refrigerant.
  • the dual path condenser 101 may be a condenser in which a plurality of condensers are integrated with each other, so as to increase space utility and heat exchange efficiency.
  • the dual path condenser 101 may include a first condensation path (see 141 of FIG. 13 ) through which the first refrigerant passes, and a second condensation path (see 142 of FIG. 3 ) through which the second refrigerant passes and may condense both the first refrigerant and the second refrigerant.
  • the first condensation path 141 and the second condensation path 142 are individually formed. The detailed configuration of the dual path condenser 101 will be described again later.
  • the dual path condenser 101 may be disposed in a machine compartment 23 together with the first compressor 32 and the second compressor 42. Since both the first refrigerant in a first refrigerating cycle and the second refrigerant in a second refrigerating cycle may be condensed by the dual path condenser 101, no additional condenser other than the dual path condenser 101 may be required in the refrigerator 5 illustrated in FIGS. 9 and 10 .
  • the internal arrangement of the machine compartment 23 may be the same as those of FIGS. 1 through 8 . That is, the first compressor 32 and the second compressor 42 may be disposed at both sides of the machine compartment 23, and the dual path condenser 101 may be disposed between the first compressor 32 and the second compressor 42.
  • a machine compartment blower fan 24 may allow air to flow in the direction of the second compressor 42, the dual path condenser 101, and the first compressor 32.
  • FIG. 11 is a view illustrating a dual path condenser 101 of the refrigerator 5 of FIG. 10
  • FIG. 12 is a view illustrating the dual path condenser of the refrigerator of FIG. 11 in an A direction
  • FIG. 13 is a view illustrating a state in which condensation paths of the dual path condenser of the refrigerator of FIG. 12 are unfolded
  • FIG. 14 is a view for explaining a structure of a baffle of the dual path condenser 101 of the refrigerator 5 of FIG. 10
  • FIG. 15 is a view illustrating a tube of the dual path condenser 101 of the refrigerator 5 of FIG. 10
  • FIG. 16 is a view for explaining the relationship between the baffle and the tube of the dual path condenser 101 of the refrigerator 5 of FIG. 10 .
  • the dual path condenser 101 includes a plurality of headers 111 and 112 through which a refrigerant is introduced or flows out, a stacked flat tube 121 that allows the space between the plurality of headers 111 and 112 to communicate, and heat dissipation fins 150 that contact the tube 121.
  • the plurality of headers 111 and 112 include a first header 111 and a second header 112, and a first inlet 131 through which a first refrigerant is introduced, a second inlet 133 through which a second refrigerant is introduced, and a second outlet 134 through which the second refrigerant flows out may be disposed at the first header 111.
  • a first outlet 132 through which the first refrigerant flows outs may be disposed at the second header 112.
  • the first inlet 131 may be connected to the first compressor 32
  • the first outlet 132 may be connected to the first expansion valve 34
  • the second inlet 133 may be connected to the second compressor 42
  • the second outlet 134 may be connected to the second expansion valve 144.
  • the dual path condenser 101 includes the first condensation path 141 on which the first refrigerant introduced through the first inlet 131 is condensed and is guided to the first outlet 132, and the second condensation path 142 on which the second refrigerant introduced through the second inlet 133 is condensed and is guided to the second outlet 134.
  • the first condensation path 141 and the second condensation path 142 are separately formed so that mixing of the first refrigerant and the second refrigerant may be prevented.
  • the first condensation path 141 and the second condensation path 142 may be formed by internal spaces 111f and 112f of the headers 111 and 112 and channels 123 of the tube 121.
  • the first header 111 has an outer wall 111a of which both ends are open and which has the internal space 111f, and an opening 111b that is formed in parallel to the outer wall 111a and communicates with the internal space 111f.
  • one opening 111b may be formed and may be sealed by the tube 121.
  • Header caps 111d and 111e may be combined with both open ends of the first header 111 and may be sealed.
  • the second header 112 also has the same configuration as the first header 111, i.e., has an outer wall 112a of which both ends are open and which has the internal space 112f, and an opening 112b that is formed in parallel to the outer wall 112a and communicates with the internal space 112f.
  • one opening 112b may be formed and may be sealed by the tube 121.
  • Header caps 112d and 112e may be combined with both open ends of the second header 112 and may be sealed.
  • the tube 121 is an integrated flat tube having a plurality of channels 123, and predetermined portions of both ends of the tube 121 are inserted into the internal space 111f of the first header 111 and the internal space 112f of the second header 112 through the opening 111b of the first header 111 and the opening 112b of the second header 112.
  • the insertion depth of the tube 121 may be limited by a baffle 160 disposed at the headers 111 and 112.
  • the baffle 160 is disposed in the internal spaces 111f and 112f of the headers 111 and 112 so as to partition off the internal spaces 111f and 112f of the headers 111 and 112 and to guide the flow of the refrigerant. Since the cross-section of the first header 111 is shown in FIG. 13 , referring to FIG. 13 , a stopper (see 161 of FIG. 14 ) is formed in the baffle 160 so as to limit the insertion depth of the tube 121.
  • a stopper 161 may have the shape of a groove that is depressed toward the inside of the stopper 161 so as to accommodate portions of the tube 121.
  • the stopper 161 may include a first support face 161a that prevents movement in a direction in which the tube 121 is inserted into the headers 111 and 112, and a second support face 161b and a third support face 161c that prevent movement in a direction perpendicular to the insertion direction of the tube 121.
  • the baffle 160 may have an insertion protrusion 162 so as to be combined with the headers 111 and 112, and position adjustment holes 111c and 112c through which the insertion protrusion 162 may be inserted are formed in outer walls 111a and 112a that are opposite to the openings 111b and 112b of the headers 111 and 112.
  • the baffle 160 and the headers 111 and 112 may be combined with each other by brazing.
  • the tube 121 is formed as one body, as illustrated in FIG. 15 and may include a flat type body 122 and the plurality of channels 123 through which the refrigerant flows and which are formed on the body 122.
  • the heat dissipation fins 150 contact the body 122.
  • Each of the heat dissipation fins 150 may be disposed to have a width corresponding to the width of the tube 121 so as to effectively dissipate heat transferred to the entire body 122.
  • Each of the plurality of channels 123 of the tube 121 may be formed to have a predetermined width WC and a predetermined height HC and may have a simple shape with a uniform gap GC.
  • ends of the tube 121 are inserted into the internal spaces 111f and 112f of the headers 111 and 112. Since the inserted tube 121 is naturally supported by the baffle 160, no additional shape for this support is necessary and thus the tube 121 can be easily manufactured.
  • portions 124 of the plurality of channels 123 constitute portions of the first condensation path 141. This is referred to as a first channel portion 124. Also, the other portions 125 of the channels 123 constitute portions of the second condensation path 142. This is referred to as a second channel portion 125. Thus, the first channel portion 124 is formed at portions of the body 122, and the second channel portion 125 is formed at the other portions of the body 122.
  • the second refrigerating unit does not operate and only the first refrigerating unit operates, i.e., when the refrigerant does not flow through the second channel portion 125 and flows only through the first channel portion 124, heat of the refrigerant is transferred to the entire body 122 and may be dissipated through the entire body 122. That is, even when the refrigerant flows only through the first channel portion 124, heat of the refrigerant is transferred to portions of the body 122 that constitute the first channel portion 124 and the other portions of the body 122 that constitute the second channel portion 125 such that heat dissipation can be performed through the entire body 122.
  • the heat dissipation fins 150 contact all of the plurality of tubes so that the effect of increasing the heat dissipation area of the present embodiment can be expected. That is, even when the plurality of tubes are separated from each other, heat may be transferred to the entire body 122 through the heat dissipation fins 150.
  • Some of the plurality of channels 123 of the tube 121 may be blocked by the baffle 160.
  • channels 123a that are blocked by the baffle 160 are shaded in. In this way, the channels 123a that are blocked by the baffle 160 may not constitute any of the first condensation path 124 and the second condensation path 125.
  • the refrigerant may be introduced through the blocked channels 123a and outlets of the blocked channels 123a are blocked by the baffle 160, the flow of the refrigerant does not occur and may be stopped.
  • the channels 123a to be blocked by the baffle 160 may be pre-blocked when the tube 121 is manufactured, this causes an increase in material cost.
  • it is effective in view of cost and convenience of processing to, as in the present embodiment, manufacture the tube 121 in such a way that the plurality of channels 123 are formed to the predetermined width WC and the uniform gap GC and to block the channels 123a using the baffle 160.
  • the width (see WB of FIG. 16 ) of the baffle 160 needs to correspond to or to be larger than the width (see WC of FIG. 16 ) of each channel 123.
  • All of the elements of the dual path condenser 101 having the above configuration may be combined with each other by brazing so as to prevent water leakage of the refrigerant. That is, all of the headers 111 and 112, the header caps 111d, 111e, 112d, and 112e, the baffle 160, the tube 121, and the heat dissipation fins 150 may be coated with a cladding material for brazing.
  • the baffle 160 is temporarily combined with the internal spaces 111f and 112f of the headers 111 and 112, the header caps 111d, 111e, 112d, and 112e are put on both open ends of the headers 111 and 112, the tube 121 is inserted into the headers 111 and 112, and the heat dissipation fins 150 are disposed between the tubes 121 and then put into a brazing furnace, thereby manufacturing the dual path condenser 101.
  • the cladding material coated on the elements of the dual path condenser 101 is melted so that joints of the elements are sealed and simultaneously the elements are firmly joined.
  • the joints of the elements are required to be formed with a predetermined gap so as to seal spaced gaps using the melted cladding material.
  • temporarily forming the baffle 160 in the internal spaces 111f and 112f of the headers 111 and 112 may be easily performed by inserting the insertion protrusion 162 of the baffle 160 into the position adjustment holes 111c and 112c of the headers 111 and 112.
  • the structure of the dual path condenser 101 does not apply only to a condenser but may apply to an evaporator, a refrigerator, and an air conditioner.
  • the refrigerating unit of FIG. 10 is a refrigerating unit that circulates a plurality of refrigerating cycles individually.
  • the refrigerating unit of FIG. 10 includes the plurality of individual condensation paths 141 and 142, the tube 121 that is formed as one body so as to dissipate heat of the refrigerant through the entire body even when the refrigerant flows through one of the plurality of condensation paths 141 and 142, and the dual path condenser 101 having the integrated heat dissipation fins 150.
  • all heat generation elements may be disposed in the machine compartment 23 with the limited capacity, a heat dissipation efficiency of a plurality of refrigerating cycles can be improved, and energy consumed for heat dissipation can be reduced.
  • a refrigerator since a refrigerator circulates two refrigerating cycles individually using two compressors, a freezer compartment and a refrigerator compartment are cooled in different temperature ranges so that power consumption can be reduced.
  • the machine compartment can be easily arranged.
  • two refrigerating cycles can be circulated using one condenser so that the space utility of the machine compartment can be increased.

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  • 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)
  • Geometry (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP13175387.3A 2012-07-06 2013-07-05 Réfrigérateur et échangeur de chaleur pour celui-ci Active EP2696152B1 (fr)

Applications Claiming Priority (1)

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KR (1) KR102025738B1 (fr)
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Also Published As

Publication number Publication date
EP2696152A3 (fr) 2016-08-10
US20140007612A1 (en) 2014-01-09
KR102025738B1 (ko) 2019-09-27
KR20140006680A (ko) 2014-01-16
WO2014007552A1 (fr) 2014-01-09
CN103528308A (zh) 2014-01-22
CN103528308B (zh) 2018-01-09
EP2696152B1 (fr) 2018-09-12

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