WO2009148199A1 - Système de réfrigération - Google Patents

Système de réfrigération Download PDF

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Publication number
WO2009148199A1
WO2009148199A1 PCT/KR2008/004051 KR2008004051W WO2009148199A1 WO 2009148199 A1 WO2009148199 A1 WO 2009148199A1 KR 2008004051 W KR2008004051 W KR 2008004051W WO 2009148199 A1 WO2009148199 A1 WO 2009148199A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant
tubes
head
chambers
distributor
Prior art date
Application number
PCT/KR2008/004051
Other languages
English (en)
Inventor
Seung-Cheol Baek
Tae-Gyun Park
Original Assignee
Lg Electronics Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020080052064A external-priority patent/KR101357938B1/ko
Priority claimed from KR1020080052122A external-priority patent/KR101336346B1/ko
Priority claimed from KR1020080052123A external-priority patent/KR101336372B1/ko
Application filed by Lg Electronics Inc. filed Critical Lg Electronics Inc.
Publication of WO2009148199A1 publication Critical patent/WO2009148199A1/fr

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Classifications

    • 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
    • F28D1/053—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 straight
    • F28D1/0535—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 straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • 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
    • 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
    • F28D1/0475—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 having a single U-bend
    • F28D1/0476—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 having a single U-bend the conduits having a non-circular cross-section
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size

Definitions

  • Embodiments relate to a refrigerant system.
  • a refrigerant system includes a compressor, a condenser, and expander, and an evaporator.
  • the condenser or the evaporator is collectively referred to as a heat exchanger because the condenser or the evaporator allows an interior refrigerant to heat-exchange with an exterior fluid.
  • the heat exchanger is largely classified into a fin-tube type heat exchanger and a mi- crochannel tube type heat exchanger.
  • the fin-tube type heat exchanger includes a plurality of fins and a plurality of circular tubes or tubes having a shape similar to a circular shape passing through the plurality of fins.
  • the microchannel tube type heat exchanger includes a plurality of refrigerant tubes and a plurality of fins disposed between the refrigerant tubes and bent several times. Disclosure of Invention Technical Problem
  • Embodiments provide a refrigerant system that can improve the efficiency of a heat exchanger.
  • Embodiments also provide a refrigerant system in which a heat exchanger can easily manufactured.
  • a refrigerant system includes: one or more refrigerant tubes including a plurality of refrigerant passages therein; one or more fins through which the one or more refrigerant tubes pass; a first head connected to one side of the one or more refrigerant tubes; and a second head connected to the other side of the one or more refrigerant tubes.
  • a refrigerant system includes: a plurality of refrigerant tubes including a plurality of refrigerant passages therein; a first head connected to one side of the plurality of refrigerant tubes; and a second head connected to the other side of the plurality of refrigerant tubes, wherein a refrigerant flowing into one head of the first head and the second head moves into the other head through the plurality of refrigerant tubes and is discharged outside the other head.
  • a refrigerant system includes: a plurality of refrigerant tubes including a plurality of refrigerant passages therein; a plurality of fins through which each of the refrigerant tubes passes; and a first head connected to one side of the plurality of refrigerant tubes, the first head including a first chamber and a second chamber therein, wherein the plurality of refrigerant tubes includes: a plurality of first tubes in which a refrigerant flows in one direction, the plurality of first tubes being connected to the first head; and a plurality of second tubes in which the refrigerant flows in a direction opposite to a refrigerant direction of the first tubes, the plurality of second tubes being connected to the first head.
  • both sides of a refrigerant tube having a straight shape with a predetermined length are coupled to each of heads, the refrigerant tube can be easily manufactured, and the head can be simply coupled to the refrigerant tube.
  • FIG. 1 is a view of a refrigerant system according to a first embodiment.
  • FIG. 2 is a partial enlarged view illustrating a portion El of Fig. 1.
  • FIG. 3 is a cross-sectional view of a refrigerant tube coupled to a fin according to the first embodiment.
  • FIG. 4 is a view of a refrigerant system according to a second embodiment.
  • Fig. 5 is a partial enlarged view illustrating a portion E2 of Fig. 4.
  • FIG. 6 is a view of a refrigerant system according to a third embodiment.
  • Fig. 7 is a partial enlarged view illustrating a portion E3 of Fig. 6.
  • FIG. 8 is a view of a refrigerant system according to a fourth embodiment.
  • FIG. 9 is a partial enlarged view illustrating a portion E4 of Fig. 8.
  • Fig. 1 is a view of a refrigerant system according to a first embodiment
  • Fig. 2 is a partial enlarged view illustrating a portion El of Fig. 1.
  • Fig. 3 is a cross-sectional view of a refrigerant tube coupled to a fin according to the first embodiment.
  • a refrigerant system 1 includes a heat exchanger 10, a first distributor 40, a capillary 60, and a second distributor 70.
  • the heat exchanger 10 includes a plurality of refrigerant tubes.
  • the first distributor 40 communicates with the heat exchanger 10.
  • the capillary 60 communicates with the heat exchanger 10.
  • the second distributor 70 is connected to the capillary 60.
  • the heat exchanger 10 includes a plurality of fins 12, a first head 20, and a second head 30.
  • the plurality of refrigerant tubes 11 passes through the plurality of fins 12.
  • the first head 20 is coupled to one side of the plurality of refrigerant tubes 11.
  • the second head 30 is coupled to the other side of the plurality of refrigerant tubes 11.
  • the plurality of refrigerant tubes 11 is vertically spaced apart from each other.
  • Each of the first and second heads 20 and 30 includes a coupling hole having a shape corresponding to each of the refrigerant tubes 11 to respectively couple the plurality of refrigerant tubes to the first and second heads 20 and 30.
  • the refrigerant tube 11 has a flat shape. That is, the refrigerant tube 11 has a substantially flat hexahedral shape in vertical cross-section.
  • the refrigerant tube 11 and the fin 12 may be formed of an aluminum material having high thermal conductivity.
  • the refrigerant tube 11 includes a tube body 111 and a partition 113 that partitions an inner space of the tube body 111 into a plurality of refrigerant passages 112.
  • the plurality of refrigerant tubes 11 are classified into a first tube unit 120 and a second tube unit 130 according to their refrigerant flow direction.
  • the first tube unit 120 allows a refrigerant to flow from one of the first head 20 and the second head 30 to the other thereof.
  • the second tube unit 130 allows the refrigerant to flow from the other of the first head 20 and the second head 30 to one thereof.
  • a refrigerant flow direction of the first tube unit 120 is opposite to that of the second tube unit 130.
  • the first tube unit 120 includes a plurality of first tubes 121, 122, and 123 (e.g., three tubes in this embodiment), and the second tube unit 130 includes a plurality of second tubes 131, 132, and 133 (e.g., three tubes in this embodiment).
  • first tubes 121, 122, and 123 and the second tubes 131, 132, and 133 will be described with the same number.
  • the first tube unit 120 and the second tube unit 130 are provided in plurality, respectively, and alternately disposed in a vertical direction. That is, one second tube unit 130 is disposed under one first tube units 120, and the one first tube unit 120 is disposed under another second tube unit 130.
  • the one first tube unit 120 and the one second tube unit 130 constitute one heat exchanger unit El in function.
  • a plurality of heat exchanger units El is provided in this embodiment.
  • nine heat exchanger units El are illustrated in Fig. 1.
  • the first head 20 and the second head 30 include a first partition 21 and a second partition 31 for partitioning the refrigerant flowing into the plurality of heat exchanger units El, respectively.
  • the partitions 21 and 31 partition inner spaces of the heads 20 and 30, respectively, in order to prevent the refrigerant flowing into each of the heat exchanger units El from being mixed in each of the heads 20 and 30.
  • the first head 20 includes a plurality of chambers D in which the refrigerant of each of the heat exchanger units El flows.
  • the second head 30 includes a plurality of third chambers C in which the refrigerant of each of the heat exchanger units El flows.
  • a and a second chamber B is disposed in the first head 20 in order to prevent a refrigerant of the first tube unit 120 from being mixed with a refrigerant of the second tube unit 130 in each of the chambers B.
  • a refrigerant flows into a first chamber A of the first head 20 and is distributed to the first tube unit 120.
  • the refrigerant flows into the third chamber C of the second head 30 along the first tube unit 120.
  • the refrigerant flowing into the first tube unit 120 moves downwardly and is distributed to the second tube unit 130.
  • the refrigerant moves into the second chamber B of the first head 20.
  • a refrigerant flows into the second chamber B of the first head 20 and is distributed to the second tube unit 130.
  • the refrigerant flows into the third chamber C of the second head 30 along the second tube unit 130.
  • the refrigerant flowing into the third chamber C moves upwardly and is distributed to the first tube unit 120.
  • the refrigerant moves into the first chamber A of the first head 20.
  • the first distributor 40 is connected to the first head 20 through a plurality of connecting tubes 50.
  • the plurality of connecting tubes 50 communicates with the plurality of first chambers A of the first head 20, respectively.
  • the number of the connecting tubes 50 is equal to that of the heat exchanger units El.
  • a connecting pipe 42 through which the refrigerant flows is disposed on the first distributor 40.
  • the connecting pipe 42 serves as an inlet of the refrigerant in case where the heat exchanger 10 serves as the condenser, and the connecting pipe 42 serves as an outlet of the refrigerant in case where the heat exchanger 10 serves as the evaporator.
  • the capillary 60 includes a main portion 61 and a plurality of branch portions 62 branched from the main portion 61.
  • the plurality of branch portions 62 is connected to a plurality of capillary connecting portions 24 disposed on the first head 20, respectively.
  • the plurality of branch portions 62 communicates with the plurality of second chambers B of the first head 20, respectively.
  • the number of the plurality of branch portions 62 and the plurality of capillary connecting portions 24 is equal to that of the heat exchanger units El.
  • each of the heads 20 and 30, the connecting tube 50, and the first distributor 40 may be formed of the aluminum material, and each of the capillary connecting portions 24 may be formed of a copper material.
  • the capillary 60 may be coupled to the capillary connecting portions 24 using a eutectic welding process.
  • the second distributor 70 is disposed under the heat exchanger 10. The main portion
  • a brazing filler metal layer 13 is disposed between each of the refrigerant tubes 11 and each of the fins 12.
  • the brazing filler metal layer 13 is formed by heating and melting a brazing filler metal having a sheet shape coupled or attached to the refrigerant tube 11.
  • the brazing filler metal layer 13 firmly fixes the refrigerant tube 11 to the fin 12.
  • the brazing filler metal may be formed of clad. A melting point of the brazing filler metal is lower than those of the refrigerant tube 11 and the fin 12.
  • the brazing filler metal layer 13 may be disposed between each of the refrigerant tubes 11 and each of the heads 20 and 30. Also, although not shown, the brazing filler metal layer 13 may be disposed between the connecting tube 50 and the first head 20 and between the connecting tube 50 and the first distributor 40.
  • a brazing filler metal is coupled or attached to a plurality of refrigerant tubes 11 having a predetermined length.
  • the plurality of refrigerant tubes 11 including the brazing filler metal passes through a plurality of fins 12.
  • a first head 20 is coupled to one side of the plurality of refrigerant tubes 11 including the brazing filler metal, and a second head 30 is coupled to the other side of the plurality of refrigerant tubes 11 including the brazing filler metal.
  • the brazing filler metal is coupled or attached to both sides of a plurality of connecting tubes 50.
  • the first head 20 is coupled to one side of the plurality of connecting tubes 50 including the brazing filler metal, and a first distributor 40 is coupled to the other side of the plurality of connecting tubes 50 including the brazing filler metal.
  • a heat exchanger 10 (the first head 20, the second head 30, the fins 12, and the refrigerant tubes 11) connected to the first distributor 40 is heated.
  • the heat exchanger 10, the connecting tube 50, and the first distributor 40 are heated at a temperature ranging from about 58O 0 C to about 612 0 C.
  • the heat exchanger 10, the connecting tube 50, and the first distributor 40 are heated for heating and melting the brazing filler metal.
  • a brazing filler metal layer is disposed between the refrigerant tube 11 and the fin
  • a capillary 60 connected to a second distributor 70 is coupled to the first head 20 using a eutectic welding process.
  • components constituting the heat exchanger 10, the heat exchanger 10 and the connecting tube, and the connecting tube 50 and the first distributor 40 can be heated at the same time to simultaneously fix them from each other, thereby easily manufacturing the refrigerant system 1.
  • both sides of the refrigerant tube 11 having a straight-line shape and a predetermined length can be coupled to each of the heads to easily manufacture the refrigerant tube 11 and simply couple each of the heads 20 and 30 to the refrigerant tube 11.
  • a gas-phase refrigerant discharged from a compressor flows into a first distributor 40 through a connecting pipe 42.
  • the refrigerant flowing into the first distributor 40 is distributed to each of connecting tubes 50.
  • the refrigerant distributed to each of the connecting tubes 50 flows into a first chamber A of a first head 20.
  • the refrigerant flowing into the first chamber A is distributed to a plurality of first tubes 121, 122, and 123.
  • the refrigerant flowing into the plurality of first tubes 121, 122, and 123 is condensed while the refrigerant moves into a third chamber C of a second head 30.
  • the refrigerant moving into the second head 30 moves downwardly and is distributed to a plurality of second tubes 131, 132, and 133.
  • the refrigerant flowing into the plurality of second tubes 131, 132, and 133 is condensed while the refrigerant moves into a second chamber B of the first head 20.
  • the refrigerant moving into the second chamber B is expanded while the refrigerant passes through a capillary 60.
  • the refrigerant flows into a second distributor 70.
  • the refrigerant flowing into the second distributor 70 passes through a heat exchanger serving as an evaporator (not shown) to move into the compressor.
  • the refrigerant can be uniformly distributed from the second distributor 70 to each of the branch portions 62. That is, only the liquid-phase refrigerant is distributed to one of the plurality of branch portions 62, and it prevents only the gas-phase refrigerant from being distributed to the other branch portions 62.
  • the refrigerant flowing into the capillary 60 is expanded, and the expanded refrigerant flows into the second chamber B of the first head 20.
  • the refrigerant flowing into the second chamber B is distributed to the plurality of second tubes 131, 132, and 133.
  • the refrigerant flowing into the plurality of second tubes 131, 132, and 133 is evaporated while the refrigerant moves into the third chamber C of the second head 30.
  • the refrigerant flowing into the third chamber C of the second head 30 moves upwardly and is distributed to the plurality of first tubes 121, 122, and 123.
  • the refrigerant flowing into the plurality of first tubes 121, 122, 123 is evaporated while the refrigerant moves into the first chamber A of the first head 20.
  • the refrigerant moving into the first chamber A moves into the first distributor 40 through the connecting tube 50.
  • the refrigerant moving into the first distributor 40 passes through the connecting pipe 42 to move into the compressor (not shown).
  • FIG. 4 is a view of a refrigerant system according to a second embodiment.
  • Fig. 5 is a partial enlarged view illustrating a portion E2 of Fig. 4.
  • a heat exchanger unit E2 constituting a heat exchanger of this embodiment includes a first tube unit 140 and a second tube unit 150.
  • the first tube unit 140 includes a plurality of first tubes 141, 142, and 143
  • the second tube unit 150 includes a plurality of second tubes 151 and 152 having a number that is less than that of the plurality of first tubes 141, 142, and 143.
  • first tube unit 140 includes three first tubes 141, 142, and 143
  • second tube unit 150 includes two second tubes 151 and 152.
  • a gas-phase refrigerant flowing into a first chamber Al of the first head 20 flows into the first tube unit 140.
  • the refrigerant flowing into the first tube unit 140 moves into a third chamber Cl of a second head 30.
  • a portion of the gas-phase refrigerant is phase-changed into a liquid-phase refrigerant while the refrigerant flows into the first tube unit 140.
  • two-phase refrigerant flows into the third chamber Cl of the second head 30.
  • the refrigerant flowing into the third chamber Cl of the second head 30 flows into the second tube unit 150.
  • the remaining gas-phase refrigerant is phase-changed into the liquid-phase refrigerant while the refrigerant flows into the second tube unit 150.
  • the number of the heat exchanger unit E2 can increase. As a result, the number of the first tube in which the refrigerant having the relatively high temperature flows increases to improve overall performance of the heat exchanger.
  • FIG. 6 is a view of a refrigerant system according to a third embodiment
  • Fig. 7 is a partial enlarged view illustrating a portion E3 of Fig. 6.
  • a refrigerant system 200 includes a heat exchanger 210, a first distributor 240, a capillary 260, and a second distributor 270.
  • the heat exchanger 210 includes a plurality of refrigerant tubes 211 having a flat shape.
  • the first distributor 240 communicates with the heat exchanger 210.
  • the capillary 260 communicates with the heat exchanger 210.
  • the second distributor 270 is connected to the capillary 260.
  • the heat exchanger 210 includes a plurality of fins 212, a first head 220, and a second head 230.
  • the plurality of refrigerant tubes 211 passes through the plurality of fins 212.
  • the first head 220 is coupled to one side of the plurality of refrigerant tubes 211.
  • the second head 230 is coupled to the other side of the plurality of refrigerant tubes 211.
  • the first distributor 240 is connected to the first head 220 through a plurality of connecting tube 250.
  • the second distributor 270 is connected to the second head 230 through the capillary 260.
  • a plurality of first partitions 221 and a plurality of second partitions that partition inner spaces of the first and second heads 220 and 230 are disposed in the first head 220 and the second head 230, respectively.
  • a plurality of first chambers A2 is disposed in the first head 220, and a plurality of second chambers B2 is disposed in the second head 230.
  • Each of the chambers A2 and B2 and the plurality of refrigerant tubes 211 (six refrigerant tubes in this embodiment) through which each of the chambers A2 and B 2 communicates may be defined as one heat exchanger unit E3.
  • a refrigerant distributed from the first distributor 240 independently flows into each heat exchanger unit E3 without being mixed with each other. Referring to Fig. 6, as one example, nine heat exchanger units E3 are illustrated.
  • a refrigerant flows into the first chamber A2 of the first head 220 and is distributed to each of the refrigerant tubes 211.
  • the refrigerant flows into the second chamber B2 of the second head 230 along each of the refrigerant tubes 211.
  • a refrigerant flows into the second chamber B2 of the second head 230 and is distributed to each of the refrigerant tubes 211.
  • the refrigerant flows into the first chamber A2 of the first head 220 along each of the refrigerant tubes 211.
  • the connecting tube 250 communicates with the first chamber A2 of the first head
  • the number of the connecting tube 250 is equal to that of the heat exchanger units E3.
  • a connecting pipe 242 through which the refrigerant flows is disposed on the first distributor 240.
  • the connecting pipe 242 serves as an inlet of the refrigerant in case where the heat exchanger 210 serves as the condenser, and the connecting pipe 242 serves as an outlet of the refrigerant in case where the heat exchanger 210 serves as the evaporator.
  • the capillary 260 includes a main portion 261 and a plurality of branch portions 262 branched from the main portion 261.
  • the plurality of branch portions 262 is connected to a plurality of capillary connecting portions 234 disposed on the second head 230, respectively.
  • Each of the branch portions 262 communicates with the second chamber B2 of the second head 230.
  • the number of the plurality of branch portions 262 and the plurality of capillary connecting portions 234 is equal to that of the heat exchanger units E3.
  • Each of the heads 220 and 230, the connecting tube 250, and the first distributor 240 may be formed of an aluminum material.
  • the capillary 260 may be formed of a copper material.
  • the capillary 260 may be coupled to the capillary connecting portion 234 using an eutectic welding process.
  • the second distributor 270 is disposed under the heat exchanger 210.
  • the main portion 261 is connected to an upper surface of the second distributor 270.
  • a brazing filler metal layer may be disposed between the refrigerant tube 211 and the fin 212, between the first head 220 and the refrigerant tube 211, between the second head 230 and the refrigerant tube 211, between the connecting tube 250 and the first distributor 220, and between the connecting tube 250 and the first head 220.
  • a gas-phase refrigerant discharged from a compressor flows into a first distributor 240 through a connecting pipe 242.
  • the refrigerant flowing into the first distributor 240 is distributed to each of connecting tubes 250.
  • the refrigerant distributed to each of the connecting tubes 250 flows into a first chamber A2.
  • the refrigerant flowing into the first chamber A2 is distributed to a plurality of refrigerant tubes 211.
  • the refrigerant flowing into the plurality of refrigerant tubes 211 is condensed while the refrigerant moves into a second chamber B2 of a second head 30.
  • the refrigerant moving into the second chamber B2 is expanded while the refrigerant passes through a capillary 260. Thereafter, the refrigerant flows into a second distributor 270.
  • the refrigerant moving into the second distributor 270 passes through a heat exchanger serving as an evaporator (not shown) to move into the compressor.
  • the refrigerant distributed from the first distributor 240 flows only in one direction, and then, moves into the capillary 260.
  • the refrigerant flowing into the capillary 260 is expanded, and the expanded refrigerant flows into the second chamber B2 of the second head 230.
  • the refrigerant flowing into the second chamber B2 is distributed to the plurality of refrigerant tubes 211.
  • the refrigerant flowing into the plurality of refrigerant tubes 211 is evaporated while the refrigerant moves into the first chamber A2 of the first head 220.
  • the refrigerant moving into the first chamber A2 moves into the first distributor 240 through the connecting tube 250.
  • the refrigerant moving into the first distributor 240 passes through the connecting pipe 242 to move into the compressor (not shown).
  • the refrigerant system 200 can be easily manufactured and assembled without causing interference to each other.
  • the refrigerant tube 211 can be easily manufactured and flow passages can be easily designed.
  • FIG. 8 is a view of a refrigerant system according to a fourth embodiment
  • Fig. 9 is a partial enlarged view illustrating a portion E4 of Fig. 8.
  • a coupling configuration of a refrigerant tube and a fin and a method of manufacturing a heat exchanger in this embodiment are the same as those in the first embodiment except a structural difference of the heat exchanger. Thus, only the characteristic aspects of this embodiment will be described.
  • a refrigerant system 300 includes a heat exchanger 310, a first distributor 360, a capillary 380, and a second distributor 390.
  • the heat exchanger 210 includes a plurality of refrigerant tubes 311 having a flat shape.
  • the first distributor 360 communicates with the heat exchanger 310.
  • the capillary 380 communicates with the heat exchanger 310.
  • the second distributor 390 is connected to the capillary 380.
  • the heat exchanger 310 includes a plurality of refrigerant tubes 311 , a plurality of fins 312, and a head 350.
  • Each of the refrigerant tubes 311 is bent by at least one time.
  • the plurality of refrigerant tubes 311 passes through the plurality of fins 312.
  • the head 350 is coupled to both ends of each of refrigerant tubes 311.
  • the head 350 is connected to the first distributor 360 through a plurality of connecting tube 370.
  • a plurality of refrigerant passages is defined in each of the refrigerant tubes 311.
  • a first refrigerant tube 320, a second refrigerant tube 330, and a third refrigerant tube 340 are illustrated, as an example, in Fig. 9.
  • Each of the refrigerant tubes 320, 330, and 340 includes one curved portion 323 (333) (343) and two straight portions (a first straight portion 321 (331) (341) and a second straight portion 322 (332) (342)) connected to the curved portion 323 (333) (343) according to their external shapes.
  • the curved portion 323 (333) (343) is bent with a predetermined curvature such that the two straight portions 321 (331) (341) and 322 (332) (342) are parallel to each other.
  • Each of the refrigerant tubes 320, 330, and 340 is bent such that one tube having a predetermined length has the predetermined curvature.
  • Each of the refrigerant tubes 320, 330, and 340 is disposed such that the curved portions 323, 333, and 343 are evenly spaced from one another, as well as the two straight portions 321 (331) (341) and 322 (332) (342) are parallel to each other. That is, each of the straight portions 321, 331, and 341 and 322, 332, and 342 of the first refrigerant tube 320, the second refrigerant tube 330, and the third refrigerant tube 340 that are adjacent to one another and each of the curved portions 323, 333, and 343 are disposed side by side to each other.
  • a curvature radius R3 of the curved portion 343 of the third refrigerant tube 340 is one-half (L/2) of each of spaces between the refrigerant tubes 320, 330, and 340. That is, the curvature radius R3 is shortest. Curvature radii increase in a sequence of the curved portion 333 of the second refrigerant tube 330 and the curved portion 323 of the first refrigerant tube 320.
  • the curvature radii Rl and R2 of the first refrigerant tube 320 and the second refrigerant tube 330 are larger than one-half of each of the spaces between the refrigerant tubes 320, 330, and 340.
  • the first refrigerant tube 320 and the second refrigerant tube 330 are bend, deformation in an internal cross-section can be reduced and the tubes 320 and 330 can be manufactured with a lower force compared with those in case where the curvature radius R3 of the curved portion 343 of the third refrigerant tube 340 is one-half (L/2) of each of the spaces between the refrigerant tubes 320, 330, and 340.
  • the first straight portion (321) (331) (341) allows the refrigerant to flow from one of the head 350 and the curved portion 323 (333) (343) to the other thereof.
  • the second straight portion 322 (332) (342) allows the refrigerant to flow from the other of the head 350 and the curved portion 323 (333) (343) to one thereof.
  • a refrigerant flow direction within the first straight portion (321) (331) (341) is opposite to that of the second straight portion 322 (332) (342).
  • the first straight portion corresponds to the first tube of the first embodiment
  • the second straight portion corresponds to the second tube of the first embodiment
  • the curved portion corresponds to the second head of the first embodiment
  • the first to third refrigerant tubes 320, 330, and 340 and a portion of the head 350 connected to the first to third refrigerant tubes 320, 330, and 340 are defined as one heat exchanger unit E4.
  • This embodiment may include a plurality of heat exchanger units E4. Referring to Fig. 8, as one example, nine heat exchanger units E4 are illustrated.
  • a first partition 351 is disposed in the head 350.
  • the first partition 351 partitions the refrigerant flowing into the plurality of heat exchanger units E4.
  • each partition 351 partitions an inner space of the head 350 in order to prevent the refrigerant flowing into each of the heat exchanger units E4 from being mixed with each other in the head 350.
  • a plurality of chambers C3 in which the refrigerant of each of the heat exchanger units E4 flows is disposed in the head 350.
  • a chamber partition 353 for partitioning the chamber C3 into a first chamber A3 and a second chamber B3 is disposed in the head 350 in order to prevent the refrigerant of the first straight portions 321, 331, and 341 from being mixed with the refrigerant of the second straight portions 322, 332, and 342 in the chamber C3.
  • a refrigerant flows into the first chamber A3 of the first head 350 and is distributed to the first straight portions 321, 331, and 341.
  • the refrigerant distributed to the first straight portions 321, 331, and 341 flows into the curved portions 323, 333, and 343, and then, flows into the second straight portions 322, 332, and 342.
  • the refrigerant flowing into the second straight portions 322, 332, and 342 moves into a second chamber B3.
  • a refrigerant flows into the second chamber B2 of the second head 330 and is distributed to the second straight 322, 332, and 342.
  • the refrigerant distributed to the second straight portions 322, 332, and 342 flows into the curved portions 323, 333, and 343, and then, flows into the first straight portions 321, 331, and 341.
  • the refrigerant flowing into the first straight portions 321, 331, and 341 moves into a first chamber A3 of the head 350.
  • the connecting tube 370 communicates with the first chamber A3.
  • the number of the connecting tube 370 is equal to that of the heat exchanger units E4.
  • a connecting pipe 362 in which the refrigerant flows is disposed on the first distributor 360.
  • the connecting pipe 362 serves as an inlet of the refrigerant in case where the heat exchanger 310 serves as the condenser, and the connecting pipe 362 serves as an outlet of the refrigerant in case where the heat exchanger 310 serves as the evaporator.
  • the capillary 380 includes a main portion 381 and a plurality of branch portions 382 branched from the main portion 381.
  • the plurality of branch portions 382 is connected to a plurality of capillary connecting portions 354 disposed on the head 350, respectively.
  • Each of the branch portions 382 communicates with the second chamber B3.
  • the number of the plurality of branch portions 382 and the plurality of capillary connecting portions 354 are equal to that of the heat exchanger units E4.
  • the second distributor 390 is disposed under the heat exchanger 310.
  • the main portion 381 is connected to an upper surface of the second distributor 390.
  • a gas-phase refrigerant discharged from a compressor flows into a first distributor 360 through a connecting pipe 362.
  • the refrigerant flowing into the first distributor 360 is distributed to each of connecting tubes 370.
  • the refrigerant distributed to each of the connecting tubes 370 flows into a first chamber A3.
  • the refrigerant flowing into the first chamber A3 is distributed to the first straight portions 321, 331, and 341.
  • the refrigerant flowing into the first straight portions 321, 331, and 341 sequentially flows into the curved portions 323, 333, and 343 and the second straight portions 322, 332, and 342, and then moves into the second chamber B3 of the head 350.
  • the refrigerant is condensed while the refrigerant flows along each of the refrigerant tubes 320, 330, and 340.
  • the refrigerant moving into the second chamber B3 is expanded while the refrigerant passes through the capillary 380. Thereafter, the refrigerant flows into a second distributor 390.
  • the refrigerant moving into the second distributor 390 passes through a heat exchanger serving as an evaporator (not shown) to move into the compressor.
  • the refrigerant flowing into the capillary 380 is expanded, and the expanded refrigerant flows into the second chamber B3 of the head 350.
  • the refrigerant flowing into the second chamber B3 is distributed to the second straight portions 322, 332, and 342.
  • the refrigerant flowing into the second straight portions 322, 332, and 342 sequentially flows into the curved portions 323, 333, and 343 and the first straight portions 321, 331, and 341, and then moves into the first chamber A3 of the head 350.
  • the refrigerant is evaporated while the refrigerant flows along each of the refrigerant tubes 320, 330, and 340.
  • the refrigerant tube 311 having a straight shape with a predetermined length is bent with a predetermined curvature such that both ends thereof are parallel to each other in the same direction.
  • the both parallel ends are coupled to the head 350. Therefore, the refrigerant tube 311 can be easily manufactured, and the head 350 is simply coupled to the refrigerant tube 311.
  • the curved portions of the plurality of refrigerant tubes are disposed side by side to each other, i.e., the curvature radii of the curved portions of the refrigerant tubes are difference from each other, the refrigerant tubes can be easily bent.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un système de réfrigération. Ce système de réfrigération comprend un ou plusieurs tubes pour frigorigène, une ou plusieurs ailettes, une première tête et une seconde tête. Le ou les tubes pour frigorigène renferment une pluralité de passages pour frigorigène. Ledit ou lesdits tubes pour frigorigène traversent la ou les ailettes. La première tête est raccordée à un côté du ou des tubes pour frigorigène. La seconde tête est raccordée à l'autre côté du ou des tubes pour frigorigène.
PCT/KR2008/004051 2008-06-03 2008-07-09 Système de réfrigération WO2009148199A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2008-0052123 2008-06-03
KR1020080052064A KR101357938B1 (ko) 2008-06-03 2008-06-03 냉매 시스템
KR10-2008-0052122 2008-06-03
KR1020080052122A KR101336346B1 (ko) 2008-06-03 2008-06-03 냉매 시스템
KR1020080052123A KR101336372B1 (ko) 2008-06-03 2008-06-03 냉매 시스템
KR10-2008-0052064 2008-06-03

Publications (1)

Publication Number Publication Date
WO2009148199A1 true WO2009148199A1 (fr) 2009-12-10

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PCT/KR2008/004051 WO2009148199A1 (fr) 2008-06-03 2008-07-09 Système de réfrigération

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WO (1) WO2009148199A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10345017B2 (en) * 2016-05-26 2019-07-09 Hill Phoenix, Inc. Multi-circuit cooling element for a refrigeration system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01203890A (ja) * 1988-02-08 1989-08-16 Nippon Denso Co Ltd 熱交換器
US5579834A (en) * 1993-04-26 1996-12-03 Sanden Corporation Heat exchanger
JPH116693A (ja) * 1997-04-23 1999-01-12 Denso Corp 車両空調用熱交換器
KR19990006412A (ko) * 1997-06-16 1999-01-25 신영주 다단 기액분리형 응축기
JP2005241237A (ja) * 2004-01-27 2005-09-08 Showa Denko Kk 凝縮器および熱交換器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01203890A (ja) * 1988-02-08 1989-08-16 Nippon Denso Co Ltd 熱交換器
US5579834A (en) * 1993-04-26 1996-12-03 Sanden Corporation Heat exchanger
JPH116693A (ja) * 1997-04-23 1999-01-12 Denso Corp 車両空調用熱交換器
KR19990006412A (ko) * 1997-06-16 1999-01-25 신영주 다단 기액분리형 응축기
JP2005241237A (ja) * 2004-01-27 2005-09-08 Showa Denko Kk 凝縮器および熱交換器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10345017B2 (en) * 2016-05-26 2019-07-09 Hill Phoenix, Inc. Multi-circuit cooling element for a refrigeration system

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