EP3574277B1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
EP3574277B1
EP3574277B1 EP18747977.9A EP18747977A EP3574277B1 EP 3574277 B1 EP3574277 B1 EP 3574277B1 EP 18747977 A EP18747977 A EP 18747977A EP 3574277 B1 EP3574277 B1 EP 3574277B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
fin
refrigerant tube
fins
flat
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.)
Active
Application number
EP18747977.9A
Other languages
German (de)
English (en)
Other versions
EP3574277A4 (fr
EP3574277A1 (fr
Inventor
Tomohiko Matsuno
Makoto Shibuya
Tomoharu Iwamoto
Shingo IMANO
Hiroyuki Tanaka
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
Priority claimed from PCT/KR2018/001214 external-priority patent/WO2018143619A1/fr
Publication of EP3574277A1 publication Critical patent/EP3574277A1/fr
Publication of EP3574277A4 publication Critical patent/EP3574277A4/fr
Application granted granted Critical
Publication of EP3574277B1 publication Critical patent/EP3574277B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F28F1/325—Fins with openings
    • 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
    • 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
    • F25B39/02—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
    • F28D1/047—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
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F28F1/128—Fins with openings, e.g. louvered fins
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F28F17/005—Means for draining condensates from heat exchangers, e.g. from 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/12—Fins with U-shaped slots for laterally inserting conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • Embodiments of the present disclosure relate to a heat exchanger.
  • a heat exchanger configured to include a heat exchanger fin having a shape of a plurality of waves formed by bending a thin plate into a wave shape to collinearly locate holes provided at the fin and align a direction of a space formed by a flat part and a curved part of the fin having the wave shape to a linear part of a meander tube has been disclosed.
  • US 2014/015833A1 , US 2011/0120681A1 , EP 2447656A2 and US 2012/0175101A1 disclose a heat exchanger comprising a tube that may be inserted into a through hole formed in at least one fin.
  • Patent Document 1 Japanese Patent Laid-Open Publication Hei 9-105566
  • a heat exchanger includes at least one refrigerant tube configured to include a plurality of sections arranged in a first direction and a plurality of heat exchanger fins arranged on the plurality of sections.
  • each of the plurality of heat exchanger fins includes at least one through hole provided to allow the at least one refrigerant tube to be inserted thereinto in a second direction perpendicular to the first direction, and at least one contact member configured to protrude from one surface of the heat exchanger fin around the through hole and surround an outer circumferential surface of the refrigerant tube.
  • the contact member may be formed to be with the through hole as a whole.
  • the plurality of heat exchanger fins may include a first heat exchanger fin configured to have a first distance between fins and a second heat exchanger fin configured to have a second distance between fins, greater than the first distance between fins.
  • the heat exchanger may include an air blowing fan configured to blow air toward the heat exchanger fins.
  • the first heat exchanger fin may be disposed at a downstream side lower than the second heat exchanger fin with respect to a flow of the air blown by the air blowing fan.
  • Each of the heat exchanger fins may include a first flat surface disposed to be perpendicular to the refrigerant tube, a second flat surface disposed at a position adjacent to one side of the first flat surface to be perpendicular to the refrigerant tube, and a third flat surface disposed at a position adjacent to the other side opposite the one side of the first flat surface to be perpendicular to the refrigerant tube.
  • Each of the heat exchanger fins may further include a first connector configured to connect the first flat surface to the second flat surface and a second connector configured to connect the second flat surface to the third flat surface.
  • the first connector and the second connector may be arranged to be spaced apart from each other with the refrigerant tube interposed therebetween.
  • the first connector and the second connector are arranged to be parallel to a flow of air blown by the air blowing fan.
  • At least one of the first connector or the second connector may be formed to be concave toward the refrigerant tube.
  • At least one of the first connector or the second connector may include a louver formed toward the refrigerant tube.
  • the heat exchanger may include an air blowing fan configured to blow air toward the plurality of heat exchanger fins and a duct configured to allow the air blown by the air blowing fan to flow therethrough.
  • an air blowing fan configured to blow air toward the plurality of heat exchanger fins
  • a duct configured to allow the air blown by the air blowing fan to flow therethrough.
  • one or more of the plurality of heat exchanger fins may be arranged to be spaced apart from a wall surface of the duct.
  • a depth of the heat exchanger fin in a direction perpendicular to a flow of the air blown by the air blowing fan may be the same as or smaller than a depth of the duct.
  • the plurality of heat exchanger fins may include a first heat exchanger fin in contact with one wall surface of the duct and a second heat exchanger fin in contact with the other wall surface of the duct, that faces the one wall surface of the duct.
  • the first heat exchanger fin and the second exchanger fin may be alternately arranged along the first direction.
  • the heat exchanger may include an air blowing fan configured to blow air toward the heat exchanger fins.
  • the refrigerant tube may be configured to include a flat shape in which a first width extending in a direction parallel to a flow of the air blown by the air blowing fan and a second width extending in a direction perpendicular to the flow of the air blown by the air blowing fan are different from each other.
  • the first width may be greater than the second width.
  • Each of the plurality of heat exchanger fins may include a plurality of flat surfaces arranged in the second direction.
  • a ratio between a contact area of a part at which the contact member is in contact with the refrigerant tube and a non-contact area of a part at which the contact member does not come into contact with the refrigerant tube may be greater than 0 and smaller than 40.
  • Each of the plurality of heat exchanger fins may further include a pair of heat exchanger plates, through which the refrigerant tube passes, and an expansion plate configured to extend in the second direction and connect the pair of heat exchanger plates to each other.
  • the plurality of heat exchanger fins may include a first heat exchanger fin configured to include a first expansion plate disposed on one side of the refrigerant tube and a second heat exchanger fin configured to include a second expansion plate disposed on the other side of the refrigerant tube opposite the one side of the refrigerant tube.
  • the first expansion plate and the second expansion plate may be alternately arranged along the second direction.
  • At least one part of the first expansion plate and at least one part of the second expansion plate may be arranged to face each other.
  • heating performance may be improved by increasing a heat conduction area between a refrigerant tube and a heat exchanger fin in a heat exchanger.
  • Heat dissipation performance may be improved by increasing a surface in contact with air in a heat exchanger fin formed by combining a plurality of fins.
  • FIGS. 1 through 24 discussed below, and the various embodiments used to describe the principles of the present disclosure are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged system or device.
  • the first to seventh embodiments of the present disclosure are for improving an assembling property and a reliability of the heat exchanger by using an independent corrugated fin in an approximate rectangular shape for the heat exchanger as well as improving heat exchange performance by increasing a heat conduction area.
  • Optimal components of the heat exchanger according to devices or parts to which the components are applied may be randomly set by combining independent corrugated fins in an approximate rectangular shape and comprising different inter-fin distances.
  • Heat exchange performance may be improved by reducing a windage loss using a flat refrigerant tube.
  • FIG. 1 is a configuration diagram of a heat exchanger 1 according to a first embodiment.
  • the heat exchanger 1 according to the first embodiment includes corrugated fins 10a, 10b, 10c, 10d, 10e, and 10f, a refrigerant tube 20, and end plates 30 and 40.
  • the corrugated fins 10a, 10b, 10c, 10d, 10e, and 10f are an example of heat exchange fins that perform heat exchange.
  • the corrugated fins 10a, 10b, 10c, 10d, 10e, and 10f may be independent corrugated fins and may be single corrugate fins disposed on a first section, a second section, a third section, a fourth section, a fifth section, and a sixth section of the heat exchanger 1, respectively.
  • the corrugated fins 10a, 10b, 10c, 10d, 10e, and 10f will be described below in detail.
  • the refrigerant tube 20 includes a pair of tubes in which a refrigerant flows.
  • the pair of tubes may be bent in a meander shape and configured to insert into and pass through the corrugated fins 10a, 10b, 10c, 10d, 10e, and 10f. That is, the pair of tubes may be inserted into and pass through the corrugated fin 10a, bent in a U shape, inserted into and pass through the corrugated fin 10b, and then sequentially inserted into and pass through the corrugated fins 10c, 10d, and 10e likewise. Finally, the pair of tubes may be inserted into and pass through the corrugated fin 10f, and coupled to each other by a tube comprising a U shape.
  • a refrigerant flows into any one of the pair of tubes, flows through the heat exchanger 1, and then flows out through the other of the pair of tubes.
  • the refrigerant tube 20 may be closely attached and fixed to the corrugated fins 10a, 10b, 10c, 10d, 10e, and 10f by tube expansion.
  • the end plate 30 may be a board configured to suppress a U shape part of the refrigerant tube 20 between the corrugated fins 10a and 10b, a U shape part of the refrigerant tube 20 between the corrugated fins 10c and 10d, and a U shape part of the refrigerant tube 20 between the corrugated fins 10e and 10f not to be broken by a stress.
  • the end plate 40 may be a board configured to suppress a U shape part of the refrigerant tube 20 between the corrugated fins 10b and 10c and a U shape part of the refrigerant tube 20 between the corrugated fins 10d and 10e not to be broken by a stress.
  • the heat exchanger 1 may receive an air flow in a first direction.
  • the first direction is a direction indicated from an air blowing fan (not shown) along an arrow 50.
  • corrugated fins 10a, 10b, 10c, 10d, 10e, and 10f shown in FIG. 1 will be described below in detail.
  • FIG. 2 is a view illustrating components of the corrugated fin 10a.
  • the corrugated fin 10a may be formed by bending a flat aluminum plate repeatedly to form a perpendicular surface 11a approximately perpendicular to the refrigerant tube 20, a flat ridge surface 12a, a perpendicular surface 13a approximately perpendicular to the refrigerant tube 20, and a flat valley surface 14a.
  • the corrugated fin 10a may be installed as an example of a first corrugated fin.
  • the perpendicular surface 11a may be installed as an example of a first flat surface
  • the perpendicular surface 13a may be installed as an example of a second flat surface
  • a perpendicular surface opposite the perpendicular surface 11a, adjacent to the perpendicular surface 13a, and approximately perpendicular to the refrigerant tube 20 may be installed as an example of a third flat surface.
  • the ridge surface 12a may be installed as an example of a first connector that is configured to connect the first flat surface and the second flat surface to each other
  • the valley surface 14a may be installed as an example of a second connector that is configured to connect the second flat surface and the third flat surface to each other.
  • the corrugated fin 10a may be formed by bending a flat plate to be an approximately rectangular shape.
  • a distance between the perpendicular surface 11a and the perpendicular surface 13a may be set to be 5 mm.
  • the distance between the perpendicular surface 11a and the perpendicular surface 13a is an example of a distance between first fins.
  • the perpendicular surface 11a includes an insertion through hole 111a through which any one of the pair of tubes of the refrigerant tube 20 may be inserted and pass in a second direction perpendicular to the first direction, and an insertion through hole 112a through which the other of the pair of tubes of the refrigerant tube 20 may be inserted and pass in the second direction perpendicular to the first direction.
  • the perpendicular surface 13a may include an insertion through hole (not shown) through which any one of the pair of tubes of the refrigerant tube 20 may be inserted and pass and an insertion through hole (not shown) through which the other of the pair of tubes of the refrigerant tube 20 may be inserted and pass.
  • FIG. 3 is a view illustrating components of the corrugated fin 10f.
  • the corrugated fin 10f may be formed by bending a flat aluminum plate repeatedly to form a perpendicular surface 11f approximately perpendicular to the refrigerant tube 20, a flat ridge surface 12f, a perpendicular surface 13f approximately perpendicular to the refrigerant tube 20, and a flat valley surface 14f.
  • the corrugated fin 10f is installed as an example of a second corrugated fin.
  • the perpendicular surface 11f may be installed as an example of a first flat surface
  • the perpendicular surface 13f may be installed as an example of a second flat surface
  • a perpendicular surface opposite the perpendicular surface 11f, adjacent to the perpendicular surface 13f, and approximately perpendicular to the refrigerant tube 20 may be installed as an example of a third flat surface.
  • the ridge surface 12f may be installed as an example of a first connector configured to connect the first flat surface and the second flat surface to each other
  • the valley surface 14f may be installed as an example of a second connector configured to connect the second flat surface and the third flat surface to each other.
  • the corrugated fin 10f may be formed by bending a flat plate to be an approximately rectangular shape.
  • a distance between the perpendicular surface 11f and the perpendicular surface 13f may be set to be 10 mm.
  • the distance between the perpendicular surface 11f and the perpendicular surface 13f is an example of a distance between second fins.
  • the perpendicular surface 11f includes an insertion through hole 111f through which any one of the pair of tubes of the refrigerant tube 20 may be inserted and pass and an insertion through hole 112f through which the other of the pair of tubes of the refrigerant tube 20 may be inserted and pass.
  • the perpendicular surface 13f includes an insertion through hole 131f through which any one of the pair of tubes of the refrigerant tube 20 may be inserted and pass and an insertion through hole 132f through which the other of the pair of tubes of the refrigerant tube 20 may be inserted and pass.
  • FIGS. 2 and 3 illustrate embodiments that comprise a distance between fins is 5 mm and 10 mm
  • the distance between fins is not limited thereto.
  • the distance between fins may be set to 3 mm to 20 mm. If the distance between fins is less than 3 mm, in consideration of frost obstruction between fins, the heat exchanger 1 may experience difficulty being used as an evaporator. If the distance between fins is more than 20 mm, it is not practical to use the heat exchanger as an evaporator because a size of a heat exchanger is enlarged for securing heat exchange performance.
  • FIG. 4 is an enlarged view illustrating a part of the corrugated fin 10f.
  • FIG. 4 depicts corrugated fin 10f, the description below may apply to each of corrugated fins 10a, 10b, 10c, 10d, and 10e as well.
  • Collars 133f and 134f are provided at the insertion through holes 131f and 132f of the perpendicular surface 11f of the corrugated fin 10f, as an example of contact members for allowing the pair of tubes of the refrigerant tube 20 to come into contact with the corrugated fin 10f.
  • collars 133f and 134f are provided at the insertion through holes 131f and 132f of the perpendicular surface 13f of the corrugated fin 10f, as an example of contact members for allowing the pair of tubes of the refrigerant tube 20 to come into contact with the corrugated fin 10f.
  • the collars 133f and 134f are configured to protrude from one surface of the corrugated fin 10f around the insertion through holes 131f and 132f to surround outer circumferential surfaces of the pair of tubes of the refrigerant tube 20.
  • corrugated fins 10a, 10b, 10c, 10d, and 10e also include collars as an example of contact members, the collars are the same as those of the corrugated fin 10f and a description thereof will be omitted.
  • corrugated fin 10a, 10b, 10c, 10d, 10e, and 10f will be referred to as the corrugated fin 10 without distinguishing them from one another for the convenience of description.
  • FIG. 5 is a view illustrating the relationship between an area of a perpendicular surface 11 of the corrugated fin 10 and a cross section of the refrigerant tube 20.
  • an outer diameter of the refrigerant tube 20 after tube expansion may be 8.5 mm.
  • the refrigerant tube 20 having an outer diameter of 8.0 mm may be expanded to have an outer diameter of 8.5 mm.
  • lengths of two sides of the perpendicular surface 11 are shown as 28 mm and 60 mm, respectively.
  • an outer diameter (and an inner diameter) of the refrigerant tube 20 becomes excessively smaller.
  • an outer diameter of the refrigerant tube 20 after tube expansion becomes less than 4.6 mm and an outer diameter of the refrigerant tube 20 before tube expansion becomes less than about 4.5 mm. Accordingly, it becomes very difficult to tube-expand the refrigerant tube 20.
  • the area of the perpendicular surface 11 becomes excessively smaller with respect to the refrigerant tube 20.
  • the outer diameter of the refrigerant tube 20 after tube expansion is 8.5 mm and a length of a longitudinal side of the perpendicular surface 11 is 28 mm, as shown in FIG. 5 , but A/B is 0.1 or more, a lateral side of the perpendicular surface 11 becomes 40 mm or less. Accordingly, since it is difficult to obtain adequate heat exchange performance, it is not practical.
  • FIG. 6 is a view illustrating the method of manufacturing the heat exchanger 1 according to the first embodiment.
  • the manufacturing method illustrated in FIG. 6 is an example and any manufacturing methods that obtain the heat exchanger 1 described with reference to FIGS. 1 to 4 as a result may be available. In some embodiments, a part or the entire of the manufacturing method may be performed using machines.
  • an insertion through hole 601 is formed at a flat plate 60 by molds 611 and 612 (S101). Continuously, a peripheral part of the insertion through hole 601 of the flat plate 60 is raised to stand by molds 621 and 622 such that a collar 602 is formed (S102). Continuously, the flat plate 60 is bent to be an approximately rectangular shape (may be referred to as a pulse shape) by molds 631 and 632 (S103).
  • the corrugated fin 10 shown in FIGS. 2 and 3 is completed (S104). Although not shown, because the method ultimately results in the manufacture of the heat exchanger 1 shown in FIG. 1 , six corrugated fins 10 are manufactured.
  • a worker manually inserts the corrugated fins 10 into a fin supporting jig 64 one by one (S201). Although only an image in which one corrugated fin 10 is inserted into one fin supporting jig 64 is shown in FIG. 6 , when six corrugated fins 10 are manufactured in the fin manufacturing process, each of the corrugated fins 10 is inserted into each of six fin supporting jigs 64. Continuously, the refrigerant tube 20 is inserted into the fin supporting jig 64 (S202). Although only an image in which the refrigerant tube 20 is inserted into one fin supporting jig 64 is shown in FIG.
  • the refrigerant tube 20 is inserted into the six fin supporting jigs 64 arranged in a series. At this point, although the corrugated fin 10 is not in close contact with the refrigerant tube 20, continuously, the refrigerant tube 20 is tube-expanded by a tube expansion jig 65 such that the corrugated fin 10 comes into close contact with the refrigerant tube 20 (S203). Although only an image in which one corrugated fin 10 comes into close contact with one refrigerant tube 20 is shown in FIG. 6 , when six corrugated fins 10 are manufactured in the fin manufacturing process, the six corrugated fins 10 come into close contact with one refrigerant tube 20 at or about the same time.
  • the refrigerant tube 20 is bent to form a bent portion at a bottom in the drawing (S301) and to form a bent portion at a top in the drawing (S302).
  • the bending in 301 and the bending in 302 may be performed at the same time.
  • the heat exchanger 1 is completed through the above processes.
  • the independent approximately rectangular-shaped corrugated fin 10 may be disposed on each section of the heat exchanger 1.
  • a heat conduction area in the same occupied volume may be expanded and heat exchange performance may be improved.
  • a plurality of fins may be integrated on one corrugated fin 10.
  • the approximately rectangular-shaped corrugated fin 10 is independently disposed on each section, the same manufacturing method as that of inserting fins into a jig one by one may be employed. In some embodiments, effort may be reduced for inserting fins into a jig one by one such that a manufacturing time may be reduced.
  • the collars 113, 114, 133, and 134 are molded at the insertion through holes 111, 112, 131, and 132 of the corrugated fin 10 as a whole.
  • the refrigerant tube 20 is inserted into and passes through the insertion through holes 111, 112, 131, and 132 while the insertion through holes 111, 112, 131, and 132 are formed at the corrugated fin 10, in comparison to heat transfer through linear contact between the refrigerant tube 20 and the corrugated fin 10, in the first embodiment, because heat is transferred through surface contact between the refrigerant tube 20 and the corrugated fin 10 such that a heat conduction area between the refrigerant tube 20 and the corrugated fin 10 increases, heat conduction performance is improved.
  • the refrigerant tube 20 while having a diameter smaller than diameters of the insertion through holes 111, 112, 131, and 132 of the corrugated fin 10, is inserted into and passes through the insertion through holes 111, 112, 131, and 132 and then tube-expanded.
  • adhesion becomes excellent in comparison to forcible insertion of the refrigerant tube 20 having a diameter greater than diameters of the insertion through holes 111, 112, 131, and 132, heat conduction performance is improved such that heat exchange performance is improved.
  • a distance between fins in some sections may be easily adjusted at a low cost according to a use or an applied model.
  • dew formation or a freeze may easily occur at an upstream wind side such that a wind flow may be undermined and heat exchange performance may be deteriorated.
  • a distance between fins at the air box side may be longer than a distance between fins at a downstream wind side such that performance deterioration may be prevented.
  • the heat exchanger 1 according to a second embodiment is like the heat exchanger 1 according to the first embodiment except that one refrigerant tube 20 may be inserted into and pass through a corrugated fin 70, a description on repeated parts will be omitted, and here, only the corrugated fin 70 according to the second embodiment will be described.
  • FIG. 7 is a view illustrating components of the corrugated fin 70 according to the second embodiment.
  • the corrugated fin 70 may be formed by bending a flat aluminum plate repeatedly to form a perpendicular surface 71 approximately perpendicular to the refrigerant tube 20, a ridge surface 72, a perpendicular surface 73 approximately perpendicular to the refrigerant tube 20, and a valley surface 74.
  • the perpendicular surface 71 is installed as an example of a first flat surface
  • the perpendicular surface 73 is installed as an example of a second flat surface
  • a perpendicular surface opposite the perpendicular surface 71, adjacent to the perpendicular surface 73, and approximately perpendicular to the refrigerant tube 20 is installed as an example of a third flat surface.
  • the ridge surface 72 may be installed as an example of a first connector configured to connect the first flat surface and the second flat surface to each other
  • the valley surface 74 may be installed as an example of a second connector configured to connect the second flat surface and the third flat surface to each other.
  • the corrugated fin 70 may be formed by bending a flat plate to be an approximately rectangular shape.
  • the perpendicular surface 71 includes an insertion through hole 711 through which the refrigerant tube 20 may be inserted and pass
  • the perpendicular surface 73 includes an insertion through hole 731 through which the refrigerant tube 20 may be inserted and pass.
  • collars may be provided at the insertion through holes 711 and 731 as an example of contact members.
  • an approximate M-shaped part 721 may be provided at the ridge surface 72, and an approximate M-shaped part 741 may be provided at the valley surface 74. In various embodiments, an approximate M-shaped part may be provided at any one of the ridge surface 72 and the valley surface 74.
  • a concave shape toward the refrigerant tube 20 may be provided to at least one of the ridge surface 72 or the valley surface 74.
  • a concave shape toward the refrigerant tube 20 may be provided to at least one of the ridge surface 72 or the valley surface 74.
  • the heat exchanger 1 according to a third embodiment is like the heat exchanger 1 according to the first embodiment except that one refrigerant tube 20 is inserted into and passes through a corrugated fin 80, a description on repeated parts will be omitted, and therefore, only the corrugated fin 80 according to the third embodiment will be described.
  • FIG. 8 is a view illustrating components of the corrugated fin 80 according to the third embodiment.
  • the corrugated fin 80 is formed by bending a flat aluminum plate repeatedly to form a perpendicular surface 81 approximately perpendicular to the refrigerant tube 20, a flat ridge surface 82, a perpendicular surface 83 approximately perpendicular to the refrigerant tube 20, and a flat valley surface 84.
  • the perpendicular surface 81 may be installed as an example of a first flat surface
  • the perpendicular surface 83 may be installed as an example of a second flat surface
  • a perpendicular surface opposite the perpendicular surface 81, adjacent to the perpendicular surface 83, and approximately perpendicular to the refrigerant tube 20 may be installed as an example of a third flat surface.
  • the ridge surface 82 may be installed as an example of a first connector that is configured to connect the first flat surface and the second flat surface to each other
  • the valley surface 84 may be installed as an example of a second connector that is configured to connect the second flat surface and the third flat surface to each other.
  • the corrugated fin 80 is formed by bending a flat plate to be an approximately rectangular shape.
  • the perpendicular surface 81 includes an insertion through hole 811 through which the refrigerant tube 20 may be inserted and pass
  • the perpendicular surface 83 includes an insertion through hole 831 through which the refrigerant tube 20 may be inserted and pass.
  • collars may be provided at the insertion through holes 811 and 831 as an example of contact members.
  • a louver (cut-to-stand member) 821 may be provided at the ridge surface 82, and a louver 841 may be provided at the valley surface 84.
  • a louver may be provided at any one of the ridge surface 82 and the valley surface 84.
  • a louver 821 or 841 is provided to at least one of the ridge surface 82 or the valley surface 84.
  • FIG. 9 is a view illustrating a structure of the heat exchanger 1 according to the first embodiment to compare with the heat exchanger 1 according to the fourth embodiment.
  • the heat exchanger 1 according to the fourth embodiment includes corrugated fins 10a through 10m and the refrigerant tube 20.
  • the corrugated fins 10a to 10m may be a plurality of sections of corrugated fins 10 that are configured to come into thermal contact with the refrigerant tube 20 and perform heat exchange with air. Although the number of sections of the corrugated fin 10 is six in FIG. 1 , as shown in FIG. 9 the corrugated fin 10 contains thirteen sections, corrugated fins 10a to 10m.
  • the refrigerant tube 20 may be a tube configured to allow a refrigerant to flow.
  • FIG. 1 illustrates a structure in which the refrigerant tube 20 is provided as a pair of tubes
  • FIG. 9 illustrates a structure in which the refrigerant tube 20 is provided as one tube.
  • the heat exchanger 1 receives an air flow in the first direction.
  • the first direction is a direction indicated from the air blowing fan, that is not shown along the arrow 50.
  • Heat transfer between fins and air may be performed by forcible convection current heat transfer.
  • a forcible convection current heat transfer rate (hereinafter, simply referred to as "heat transfer rate”) is generally proportional to 0.8 square of Reynolds number, a heat transfer rate increases as an air speed increases.
  • the air speed is zero (0) at a wall surface of a duct, which is a stop wall, increases from the wall surface of the duct toward a central part of the duct, and is maximized at a center of the duct.
  • a heat transfer rate at the fins of the heat exchanger 1 differs at the center of the duct or near the wall surface of the duct and decreases near the wall surface of the duct.
  • the forcible convection current heat transfer rate may be greatly influenced by a temperature boundary layer formed between air and a surface of the fin.
  • the temperature boundary layer may be formed because the air comes into contact with the fin such that a temperature of the air is decreased.
  • the theoretical thickness of the temperature boundary layer may be zero (0) at a part at which the air and the fin initially come into contact with each other, and the thickness thereof increases according to a flow toward a downstream side.
  • a heat transfer rate increases.
  • a heat transfer rate decreases.
  • the above-described increase in heat transfer performance, that occurs at a part at which air and a fin initially collides with each other, is referred to as a front-part effect.
  • the front-part effect may be effectively utilized.
  • FIG. 10 is a partial enlarged view illustrating the corrugated fin 10 according to the first embodiment.
  • the corrugated fin 10 according to the first embodiment includes a structure in which independent and adjacent fins are connected to each other. That is, in addition to the perpendicular surface 11, the ridge surface 12, the perpendicular surface 13, and the valley surface 14 shown in FIGS. 2 and 3 , the corrugated fin 10 includes a perpendicular surface 15, a ridge surface 16, a perpendicular surface 17, and a valley surface 18, that are repeated parts of the perpendicular surface 11, the ridge surface 12, the perpendicular surface 13, and the valley surface 14.
  • the perpendicular surfaces 11, 13, 15, and 17 corresponding to the independent fins may be used as enlarged heat conduction surfaces, and the ridge surface 12, the valley surface 14, the ridge surface 16, and the valley surface 18 are configured to connect the perpendicular surfaces 11, 13, 15, and 17.
  • the ridge surface 12, the valley surface 14, the ridge surface 16, and the valley surface 18 are installed.
  • D refers to a depth of the duct (a depth of the corrugated fin 10)
  • H refers to a height of the corrugated fin 10
  • W refers to a connection length (lengths of sides of the ridge surface 12, the valley surface 14, the ridge surface 16, and the valley surface 18 perpendicular to an air flow direction).
  • insertion through holes may be formed at the perpendicular surfaces 11, 13, 15, and 17 and the refrigerant tube 20 may be inserted into and pass through the insertion through holes.
  • tube expansion may be performed by inserting a mandrel having a diameter greater than an inner diameter of the refrigerant tube 20 into the refrigerant tube 20 and enlarging a diameter of the refrigerant tube 20 such that the refrigerant tube 20 may come into thermal contact with the perpendicular surfaces 11, 13, 15, and 17.
  • the perpendicular surfaces 11, 13, 15, and 17 may be connected by the ridge surface 12, the valley surface 14, the ridge surface 16, and the valley surface 18, gaps between adjacent perpendicular surfaces 11, 13, 15, and 17 may be maintained such that a jig for adjusting a pitch of fins is unnecessary.
  • a thickness of the heat exchanger 1 in a depth direction of the refrigerator may be restricted to be, for example, 40 mm to 70 mm to increase an inner capacity of the refrigerator.
  • a height of the corrugated fin 10 may be, for example, 28 mm and the corrugated fins 10 may be stacked in a direction in which air flows through the duct such that a heat conduction area is secured.
  • a gap of, for example, 2 mm may be provided between the corrugated fins 10 on adjacent sections.
  • FIG. 11 is a view illustrating a structure of the heat exchanger 1 according to the fourth embodiment.
  • the corrugated fin 10 according to the fourth embodiment may be formed by being bent to be a wave shape.
  • an air flow may be formed in the first direction from the air blowing fan, that is not shown, along the arrow 50.
  • the duct may be a path through which air blown by the air blowing fan flows and may be configured to accommodate the corrugated fins 10. In some embodiments, at least a part of an inner wall of the duct may come into contact with the corrugated fin 10.
  • a depth of the corrugated fin 10 may be shorter than a depth of the duct.
  • the corrugated fin 10 at the most upstream section is disposed to come into contact with a wall surface of the duct at a front side
  • the corrugated fin 10 at a next section is disposed to come into contact with a wall surface of the duct at a rear side.
  • the corrugated fin 10 at a third section is disposed to come into contact with the wall surface of the duct at the front side
  • the corrugated fin 10 at a fourth section is disposed to come into the wall surface of the duct at the rear side. That is, the corrugated fins 10 disposed at a plurality of such sections are arranged to alternately come into contact with the wall surface of the duct at the front side and the wall surface of the duct at the rear side.
  • FIG. 12 is a partial enlarged view illustrating the corrugated fin 10 according to the fourth embodiment.
  • the corrugated fin 10 according to the fourth embodiment includes the perpendicular surfaces 11, 13, 15, and 17 and the ridge surface 12, the valley surface 14, the ridge surface 16, and the valley surface 18.
  • D refers to a depth of the duct
  • H refers to a height of the corrugated fin
  • W refers to a connection length (lengths of sides of the ridge surface 12, the valley surface 14, the ridge surface 16, and the valley surface 18 perpendicular to an air flow direction)
  • t refers to a difference between the depth of the duct and a depth of the corrugated fin 10.
  • Heat exchange performance may be obtained by multiplying a heat conduction area by a forcible convection current heat transfer rate.
  • a range in which the heat exchange performance is improved in the fourth embodiment will be obtained using a simple model.
  • a forcible convection current heat transfer rate at a wall surface of the duct is referred to as h1
  • a forcible convection current heat transfer rate at a position far t mm from the duct is referred to as h2.
  • the corrugated fin 10 may be installed so as to come into contact with the wall surface of the duct in the first embodiment, a surface, at which the corrugated fin 10 comes into contact with the wall surface of the duct, does not come into contact with air and is excluded from the heat conduction area.
  • Equation 1 a condition for improving the heat exchange performance may be expressed as the following Equation:
  • K 2 ⁇ K 1 h 2 ⁇ 2 W ⁇ H ⁇ h 1 ⁇ W ⁇ H ⁇ h 1 + h 2 / 2 ⁇ 4 t ⁇ H > 0 2 ⁇ h 2 ⁇ h 1 ⁇ W ⁇ H > h 1 + h 2 ⁇ 2 t ⁇ H t / W ⁇ 2 ⁇ h 2 ⁇ h 1 / 2 ⁇ h 1 + h 2
  • the heat exchange performance is improved within a range in which the depth of the corrugated fin 10 is longer than 55 mm and shorter than 60 mm.
  • FIG. 13 is a graph illustrating a result of verifying heat exchange performance of the heat exchanger 1 according to the first to fourth embodiments through simulations.
  • a heat exchange rate of the heat exchanger 1 according to the first embodiment is 61.7 W.
  • a heat exchange rate of the heat exchanger, to which the corrugated fin 10 having a depth shorter than a depth of the duct is applied is 64.4 W, and it may be seen that the heat exchange rate increases by about 4.4%.
  • the fourth embodiment has been described on the premise of structures shown in FIGS. 11 and 12 , the structures are for illustration only.
  • the corrugated fin 10 on each section may not be installed to come into contact with the wall surface of the duct and may be installed to form a gap from the wall surface of the duct.
  • the corrugated fins 10 on sections may not be installed to be alternately arranged at the front side and rear side and may be installed such that any corrugated fin 10 deviates from a certain position at the rear side and another corrugated fin 10 deviates from a certain position at the front side.
  • the any corrugated fin 10 may be an example of the first corrugated fin, and the certain position at the rear side may be an example of a first position.
  • the other corrugated fin 10 may be an example of the second corrugated fin, and the certain position at the front side may be an example of a second position.
  • FIG. 14A is a view illustrating a structure of the heat exchanger 1 according to the fifth embodiment.
  • the heat exchanger 1 according to the fifth embodiment includes corrugated fins 90a, 90b, 90c, 90d, 90e, and 90f and the refrigerant tube 20.
  • FIG. 14B is a cross-sectional view taken along a plane perpendicular to the refrigerant tube 20 of the heat exchanger 1 illustrated in FIG. 14A .
  • cutout portions may be provided at the corrugated fins 90a, 90b, 90c, 90d, 90e, and 90f and the refrigerant tube 20 may be forcibly inserted into the cutout portions.
  • the heat exchanger 1 may receive an air flow from an air blowing fan (not shown) in a first direction shown as the arrow 50.
  • FIG. 15 is a view illustrating a definition of a flat direction of the refrigerant tube 20 that is a flat tube.
  • the refrigerant tube 20 may receive an air flow in a first direction that indicates from an air blowing fan (not shown) along an arrow 50.
  • A a width of a cross section of the refrigerant tube 20 in a direction parallel to an air flow direction
  • B a width of the cross section of the refrigerant tube 20 in a direction perpendicular to the air flow direction
  • a flat shape of the refrigerant tube 20 is a shape that extends more lengthwise in a direction parallel to the air flow direction, a windage loss may be decreased and an area of a rear surface side, that becomes calm, is decreased in order to increase a heat exchange area such that heat exchange performance is improved.
  • FIG. 16 is a view illustrating a result of verifying heat exchange performance of the heat exchanger 1 when the refrigerant tube 20 is a round tube or a flat tube.
  • a round tube includes a circular shape having an outer diameter of 8.5 mm
  • a flat tube includes a shape formed by flattening the round tube 2 mm in any one direction. That is, in the case of the round tube, A and B are 8.5 mm and includes a circumferential length is 26.7 mm, and in the case of the flat tube, A is 9.6 mm, B is 6.5 mm, and A and B include a circumferential length is 26.7 mm like that of the round tube. In this way, as shown in FIG.
  • a length of an area, in which a contact flow speed to the refrigerant tube 20 is 0.1 m/s or more, is 18.8 mm at a lowermost section and is 14.3 mm from a second section from a bottom.
  • a contact flow speed is 21.9 mm at a lowermost section and is 18.0 mm from a second section from a bottom.
  • FIG. 17 is a graph illustrating a difference in heat exchange performance of the heat exchanger 1 when the refrigerant tube 20 is a round tube or a flat tube. As shown in FIG. 17 , when the refrigerant tube 20 is the flat tube, in comparison to a case in which the refrigerant tube 20 is the round tube, it may be seen that a heat exchange area increases by 16% at the lowermost section and by 26% from the second section from the bottom.
  • the above-described refrigerant tube 20 having a flat shape may be applied to the heat exchanger 1 according to the first to fourth embodiments.
  • FIG. 18 is a view illustrating a structure of the heat exchanger 1 according to a sixth embodiment.
  • the heat exchanger 1 according to the sixth embodiment includes corrugated fin groups 110 and 120 arranged in parallel in a depth direction of corrugated fins and the end plates 30 and 40.
  • the corrugated fin groups 110 and 120 are one of a corrugated fin group of stacking the corrugated fins 10 as shown in the first embodiment, a corrugated fin group of stacking the corrugated fins 70 as shown in the second embodiment, a corrugated fin group of stacking the corrugated fins 80 as shown in the third embodiment, a corrugated fin group of stacking the corrugated fins 10 as shown in the fourth embodiment, and a corrugated fin group of stacking the corrugated fins 90 as shown in the fifth embodiment.
  • the structure in which two corrugated fin groups are arranged in parallel has been described, a structure in which three or more corrugated fin groups are arranged in parallel is available.
  • a heat exchanger According to a heat exchanger according to the sixth embodiment, it may be possible to adjust heat exchange performance to an optimum level according to a use or an applied model.
  • FIG. 19 is a view illustrating the relationship between the area in which the perpendicular surface 11 (fin) of the corrugated fin 10 comes into contact with the refrigerant tube 20 and the area of the refrigerant tube 20 between the perpendicular surface 11 and the perpendicular surface 11 (between fins) will be described.
  • S1 the former area
  • S2 the latter area
  • S2/S1 may become more than 0 and less than 40 in the example.
  • an assembling property and reliability of the heat exchanger 1 may be improved by configuring the corrugated fin 10 to be an independent, approximately rectangular-shaped fin, and heat exchange performance may be improved by increasing a heat conduction area.
  • a configuration of the heat exchanger 1 according to an applied apparatus or part may be randomly set by combining the independent approximately rectangular-shaped corrugated fins 10 having different distances between fins.
  • Heat exchange performance may be improved by reducing a windage loss using a flat refrigerant tube 20.
  • an expansion plate may be installed with respect to the fin to increase a heat conduction area such that heat dissipation performance is improved.
  • Productivity may be improved by employing the same shape as the plurality of fins that form the heat exchanger fin.
  • a heat exchanger fin 200 according to the embodiment, as shown in FIG. 20 includes a plurality of fins 210 that dissipate heat generated by the refrigerant tube 20 and are arranged on the refrigerant tube 20.
  • the fin 210 includes a pair of dissipating plates 211 with a gap therebetween, through which the refrigerant tube 20 may be inserted and pass, and an expansion plate 212 disposed between the pair of dissipating plates 211.
  • the pair of dissipating plates 211 may be disposed to be approximately perpendicular to the refrigerant tube 20, and the expansion plate 212 may extend along the refrigerant tube 20.
  • the fin 210 is formed by bending a rectangular-shaped flat plate to be an approximate rectangular shape (approximate U shape).
  • the fin 210 in which the expansion plate 212 is disposed on one side with respect to the refrigerant tube 20 will be referred to as a first fin 210a
  • the fin 210 in which the expansion plate 212 is disposed on the other side opposite to the one side with respect to the refrigerant tube 20 will be referred to as a second fin 210b.
  • the first fin 210a and the second fin 210b may be alternately arranged along a longitudinal direction of the refrigerant tube 20.
  • expansion plates 212a and 212b of the first fin 210a and the second fin 210b are arranged in parallel with the refrigerant tube 20 interposed therebetween and also are disposed to partially face each other.
  • a dissipating plate 211a on one side of the first fin 210a (a right side in FIG. 20 ) is disposed between dissipating plates 211b on both sides of the second fin 210b adjacent to the one side, and a dissipating plate 211a on the other side of the first fin 210a (a left side in FIG. 20 ) is disposed between dissipating plates 211b on both sides of the second fin 210b adjacent to the other side.
  • the dissipating plate 211b on one side of the second fin 210b is disposed between the dissipating plates 211a on both sides of the first fin 210a adjacent to the one side, and the dissipating plate 211b on the other side of the second fin 210b is disposed between the dissipating plates 211a on both sides of the first fin 210a adjacent to the other side.
  • the first fin 210a and the second fin 210b, adjacent to each other, are arranged to allow a distance x1 between the dissipating plates 211a and 211b arranged on the other side thereof (that is, a distance between the dissipating plate 211a of the first fin 210a, disposed on the second fin 210b side, and the dissipating plate 211b of the second fin 210b, disposed on the first fin 210a side) to be a certain distance.
  • the adjacent first and second fins 210a and 210b are arranged to allow a distance x2 between the adjacent first fins 210a and a distance x3 between the adjacent second fins 210b to be certain distances.
  • the distances x1, x2, and x3 are the same size, and all the dissipating plates 211a and 211b through which the refrigerant tube 20 may be inserted and pass are equidistantly arranged. Also, all the distances x1, x2, and x3 may be 3 mm or more and 30 mm or less.
  • a heat exchanger fin 201 according to the eighth embodiment, shown in FIG. 21 differs from the heat exchanger fin 200 according to the seventh embodiment in an arrangement of the first fin 210a and the second fin 210b with respect to the refrigerant tube 20.
  • the first fin 210a and the second fin 210b are alternately arranged along a longitudinal direction of the refrigerant tube 20. Also, the expansion plates 212a and 212b of each of the adjacent first and second fins 210a and 210b are arranged in parallel with the refrigerant tube 20 therebetween and also not to face each other.
  • first and second fins 210a and 210b are arranged to allow a distance y between the dissipating plates 211a and 211b arranged on the other side thereof to be a certain distance.
  • the distance y may be 3 mm or more and 30 mm or less.
  • a heat exchanger fin 301 according to the ninth embodiment, as shown in FIG. 22 includes a plurality of fins 310 comprising a shape, different from the heat exchanger fin 200 according to the seventh embodiment, arranged on the refrigerant tube 20.
  • the fin 310 includes a dissipating plate 311, through which the refrigerant tube 20 may be inserted and pass, and an expansion plate 312 that is configured to extend from the dissipating plate 311 along the refrigerant tube 20.
  • the fin 310 according to the embodiment may be formed by bending a rectangular-shaped panel to be an L shape.
  • the fin 310 in which the expansion plate 312 is disposed on one side with respect to the refrigerant tube 20 will be referred to as a first fin 310a
  • the fin 310 in which the expansion plate 312 is disposed on the other side opposite to the one side with respect to the refrigerant tube 20 will be referred to as a second fin 310b.
  • the first fin 310a and the second fin 310b are alternately arranged along a longitudinal direction of the refrigerant tube 20. Also, the expansion plates 312a and 312b of each of the adjacent first and second fins 310a and 310b are arranged in parallel to each other with the refrigerant tube 20 therebetween and also not to face each other.
  • the heat exchanger fin 300 includes a corrugated fin shape overall.
  • the adjacent first and second fins 310a and 310b are arranged to allow a distance z between the adjacent dissipating plates 311a and 311b to be a certain distance.
  • the distance z may be the same as widths of the expansion plates 312a and 312b or may be slightly longer than the widths of the expansion plates 312a and 312b.
  • the distance z may be 3 mm or more and 30 mm or less.
  • fins comprising the same shape may be applied, manufacturing costs may be reduced.
  • frost formed at a part located on an upstream side of an air flow generated by an air blowing fan may be suppressed.
  • Each of heat exchanger fins has the same shape such that manufacturing costs are reduced.
  • the heat exchanger 1 according to the embodiment includes the heat exchanger fin 200 according to the seventh embodiment and the heat exchanger fin 201 according to the eighth embodiment.
  • the heat exchanger 1 according to the embodiment includes the refrigerant tube 20 including a plurality of sections bent in a meander shape and the heat exchanger fins 200 and 201 arranged on each section of the refrigerant tube 20 and through which air blown by an air blowing fan passes.
  • the air blown by the air blowing fan may flow from a lower side toward an upper side.
  • the heat exchanger fins 201 according to the eighth embodiment may be arranged on a first section and a second section of a refrigerant tube, arranged on an upstream side of an air flow, and the heat exchanger fins 200 according to the seventh embodiment may be arranged on a third section and a fourth section of the refrigerant tube, arranged on a downstream side of the air flow.
  • all the fins 210 of the heat exchanger fins 200 and 201 include the same shape.
  • the distance x1 (refer to FIG. 20 ) of the heat exchanger fin 200 according to the eighth embodiment and the distance y (refer to FIG. 21 ) of the heat exchanger fin 201 according to the eighth embodiment are configured to have the same length.
  • all the fins 210 used for the heat exchanger 1 include the same shape, as well as, the heat exchanger fin 200 configured to include a narrow part (refer to FIG. 23 ) as a distance between dissipating plates 211 and the heat exchanger fin 201 configured to have a wide part (refer to FIG. 23 ) and a narrow part (refer to FIG. 23 ) as distances between the dissipating plates 211 may be arranged.
  • the heat exchanger fin 201 according to the eighth embodiment may be disposed at the upstream side of the air flow and the heat exchanger fin 200 according to the seventh embodiment may be disposed at the downstream side of the air flow such that frost that easily occurs at the upstream side of the air flow may be suppressed.
  • expansion plates included in both the heat exchanger fins are arranged may not overlap each other such that water drops generated during defrosting efficiently flow down.
  • the heat exchanger 1 includes the refrigerant tube 20, including a plurality of sections bent in a meander shape, and heat exchanger fins 300 arranged on each section of the refrigerant tube 20 and through which air blown by an air blowing fan passes. All the heat exchanger fins 300 include the same configuration. In FIG. 24 , air blown by the air blowing fan flows from a front side toward an inner side.
  • All the heat exchanger fins 300 arranged on the sections of the refrigerant tube 20 may be arranged to allow all expansion plates 312a and 312b to be parallel.
  • the expansion plate 312a of the fin 310a of the heat exchanger fin 300 may be disposed on the section on one side thereof (section located below the adjacent surface S) and the expansion plate 312b of the fin 310b of the heat exchanger fin 300 may be disposed on the section on the other side thereof (section located above the surface S).
  • the expansion plate 312a and the expansion plate 312b, that face the adjacent surface S may be arranged not to overlap each other.
  • the expansion plates of the heat exchanger fins 300 arranged on the adjacent sections do not overlap each other even when a plurality of such heat exchanger fins come into close contact with one another to form a compact heat exchanger, water drops generated on the expansion plates during defrosting easily flow down.
  • a heat conduction area of the heat exchanger fin may be increased by the expansion plate such that heat dissipation performance may also be improved.
  • expansion plates of the heat exchanger fins arranged on the adjacent sections may be arranged not to completely overlap each other, they may be arranged to partially overlap each other within an allowable range.
  • the collars according to the first embodiment may be applied to the heat exchanger fins of the seventh to Eleventh embodiments.
  • the collar may be formed at the insertion through hole through which the refrigerant tube may be inserted and pass in the heat dissipating plate included in the heat exchanger fin.

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Claims (15)

  1. Échangeur de chaleur (1) comprenant :
    au moins un tube de fluide frigorigène (20) conçu pour comprendre une pluralité de sections agencées dans une première direction ; et
    une pluralité d'ailettes d'échangeur de chaleur (10a, 10b, 10c, 10d, 10e, 10f, 70) agencées sur la pluralité de sections,
    chacune de la pluralité d'ailettes d'échangeur de chaleur comprenant une pluralité de surfaces plates (11, 13, 15, 17, 71, 73) agencées dans une seconde direction perpendiculaire à la première direction, et
    chacune de la pluralité de surfaces plates comprenant :
    au moins un trou traversant (111, 112, 131, 132, 711, 731) conçu pour permettre à au moins un tube de fluide frigorigène d'être inséré dans la seconde direction ; et
    au moins un élément de contact (133, 134) conçu pour faire saillie à partir d'uniquement un côté de la surface plate autour d'au moins un trou traversant et entourer une surface circonférentielle externe du tube de fluide frigorigène ;
    ladite pluralité de surfaces plates étant agencées par paires adjacentes le long du tube de fluide frigorigène ; caractérisé en ce que lesdites paires adjacentes de surfaces plates possèdent leurs éléments de contact faisant saillie à partir de côtés opposés de façon à faire saillie l'un vers l'autre.
  2. Echangeur de chaleur selon la revendication 1, ledit au moins un élément de contact étant formé pour être avec le au moins un trou traversant sous la forme d'un ensemble.
  3. Echangeur de chaleur selon la revendication 1, ladite pluralité d'ailettes d'échangeur de chaleur comprenant :
    une première ailette d'échangeur de chaleur (10a, 10b, 10c, 10d, 10e) conçue pour posséder une première distance entre la pluralité de surfaces plates ; et
    une seconde ailette d'échangeur de chaleur (10f) conçue pour posséder une seconde distance entre la pluralité de surfaces plates, ladite seconde distance étant supérieure à la première distance.
  4. Echangeur de chaleur selon la revendication 3, comprenant un ventilateur de soufflage d'air conçu pour souffler de l'air vers les ailettes d'échangeur de chaleur,
    ladite première ailette d'échangeur de chaleur étant disposée d'un côté en aval plus bas que la seconde ailette d'échangeur de chaleur par rapport à un flux de l'air soufflé par le ventilateur de soufflage d'air.
  5. Echangeur de chaleur selon la revendication 1, ladite pluralité de surfaces plates comprenant :
    une première surface plate (11) disposée pour être perpendiculaire au tube de fluide frigorigène ;
    une deuxième surface plate (13) disposée au niveau d'une position adjacente à un côté de la première surface plate pour être perpendiculaire au tube de fluide frigorigène ; et
    une troisième surface plate disposée au niveau d'une position adjacente à un côté de la deuxième surface plate opposée au premier côté de la première surface plate pour être perpendiculaire au tube de fluide frigorigène.
  6. Echangeur de chaleur selon la revendication 5, chacune de la pluralité d'ailettes d'échangeur de chaleur comprenant en outre :
    un premier connecteur (12, 72, 721) conçu pour raccorder la première surface plate à la deuxième surface plate ; et
    un second connecteur (14, 74, 741) conçu pour raccorder la seconde surface plate à la troisième surface plate, et
    ledit premier connecteur et ledit second connecteur étant agencés pour être espacés l'un de l'autre avec le tube de fluide frigorigène interposé entre eux.
  7. Echangeur de chaleur selon la revendication 6, ledit premier connecteur et ledit second connecteur étant agencés pour être parallèles à un flux d'air soufflé par un ventilateur de soufflage d'air.
  8. Echangeur de chaleur selon la revendication 6, au moins l'un du premier connecteur ou du second connecteur étant formé pour être concave vers le tube de fluide frigorigène.
  9. Echangeur de chaleur selon la revendication 6, au moins l'un du premier connecteur ou du second connecteur comprenant une persienne formée vers le tube de fluide frigorigène.
  10. Echangeur de chaleur selon la revendication 1, comprenant :
    un ventilateur de soufflage d'air conçu pour souffler de l'air vers la pluralité d'ailettes d'échangeur de chaleur ; et
    un conduit conçu pour laisser s'écouler l'air soufflé par le ventilateur de soufflage d'air à travers celui-ci,
    une ou plusieurs de la pluralité d'ailettes d'échangeur de chaleur étant agencées pour être espacées d'une surface de paroi du conduit.
  11. Echangeur de chaleur selon la revendication 10, une profondeur de l'ailette d'échangeur de chaleur dans une direction perpendiculaire à un flux de l'air soufflé par le ventilateur de soufflage d'air étant égale ou inférieure à une profondeur du conduit.
  12. Echangeur de chaleur selon la revendication 10, ladite pluralité d'ailettes d'échangeur de chaleur comprenant :
    une première ailette d'échangeur de chaleur en contact avec une surface de paroi du conduit ; et
    une seconde ailette d'échangeur de chaleur en contact avec une autre surface de paroi du conduit, qui fait face à la surface de paroi du conduit, et
    ladite première ailette d'échangeur de chaleur et ladite seconde ailette d'échangeur étant agencées en alternance le long de la première direction.
  13. Echangeur de chaleur selon la revendication 1, comprenant un ventilateur de soufflage d'air conçu pour souffler de l'air vers les ailettes d'échangeur de chaleur,
    ledit tube de fluide frigorigène étant conçu pour posséder une forme plate dans laquelle une première largeur s'étendant dans une direction parallèle à un flux de l'air soufflé par le ventilateur de soufflage d'air et une seconde largeur s'étendant dans une direction perpendiculaire au flux de l'air soufflé par le ventilateur de soufflage d'air sont différentes l'une de l'autre.
  14. Echangeur de chaleur selon la revendication 13, ladite première largeur étant supérieure à la seconde largeur.
  15. Réfrigérateur comprenant un échangeur de chaleur selon l'une quelconque des revendications 1 à 14.
EP18747977.9A 2017-02-03 2018-01-29 Échangeur de chaleur Active EP3574277B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017018214 2017-02-03
JP2017204035A JP2018124047A (ja) 2017-02-03 2017-10-20 熱交換器、その製造方法及び放熱体
KR1020180003863A KR102572098B1 (ko) 2017-02-03 2018-01-11 열교환기 및 그 제조방법
PCT/KR2018/001214 WO2018143619A1 (fr) 2017-02-03 2018-01-29 Échangeur de chaleur et son procédé de fabrication

Publications (3)

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EP3574277A1 EP3574277A1 (fr) 2019-12-04
EP3574277A4 EP3574277A4 (fr) 2020-02-19
EP3574277B1 true EP3574277B1 (fr) 2022-07-27

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1957703A (en) * 1931-09-11 1934-05-08 Shaw Perkins Mfg Company Radiator
JPH09105566A (ja) 1995-10-09 1997-04-22 Hitachi Ltd 熱交換器
JPH09250890A (ja) * 1996-01-11 1997-09-22 Hitachi Ltd 熱交換器およびその製造方法とその熱交換器を用いた冷凍機器
KR20090052058A (ko) * 2007-11-20 2009-05-25 엘지전자 주식회사 공조기의 실외유닛, 핀 및 핀의 제작방법
US8978743B2 (en) * 2009-09-16 2015-03-17 Panasonic Intellectual Property Management Co., Ltd. Fin tube heat exchanger
KR20110055839A (ko) * 2009-11-20 2011-05-26 삼성전자주식회사 열교환기 및 이를 갖는 공기조화기
KR20120044850A (ko) * 2010-10-28 2012-05-08 삼성전자주식회사 열교환기
KR102085716B1 (ko) * 2012-12-10 2020-03-06 엘지전자 주식회사 열 교환기 및 그 제조 방법

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EP3574277A4 (fr) 2020-02-19
JP2018124047A (ja) 2018-08-09
KR20180090730A (ko) 2018-08-13
KR102572098B1 (ko) 2023-08-31
EP3574277A1 (fr) 2019-12-04

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