EP3141858A1 - Geneigter wärmetauscher - Google Patents

Geneigter wärmetauscher Download PDF

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Publication number
EP3141858A1
EP3141858A1 EP15788925.4A EP15788925A EP3141858A1 EP 3141858 A1 EP3141858 A1 EP 3141858A1 EP 15788925 A EP15788925 A EP 15788925A EP 3141858 A1 EP3141858 A1 EP 3141858A1
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EP
European Patent Office
Prior art keywords
header
fin
heat exchanger
bent
denoted
Prior art date
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Granted
Application number
EP15788925.4A
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English (en)
French (fr)
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EP3141858B1 (de
EP3141858A4 (de
Inventor
Jing Zhou
Qiang Gao
Xiaoming Zhong
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Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
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Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
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Publication of EP3141858A1 publication Critical patent/EP3141858A1/de
Publication of EP3141858A4 publication Critical patent/EP3141858A4/de
Application granted granted Critical
Publication of EP3141858B1 publication Critical patent/EP3141858B1/de
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    • 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
    • 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
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05333—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0243—Header boxes having a circular cross-section
    • 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
    • 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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
    • F28D2001/0253—Particular components
    • F28D2001/026—Cores
    • F28D2001/0273—Cores having special shape, e.g. curved, annular
    • 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

Definitions

  • the present disclosure relates to a heat exchanger, and more particularly to a bent parallel-flow heat exchanger.
  • a heat exchanger for example a parallel-flow heat exchanger (such as a multi-channel heat exchanger) is broadly applied to a refrigeration system, and in some application situations, the heat exchanger needs to be bent, that is, a header of the heat exchanger needs to be bent.
  • a header of the heat exchanger needs to be bent.
  • the heat exchanger is bent along a length direction of the header, if bent improperly, a performance of the heat exchanger will be affected adversely, or application requirements cannot be met.
  • a heat exchanger When a heat exchanger is bent along a length direction of a header, if a bending radius is oversize, application requirements cannot be met in a case that a mounting space for the heat exchanger is limited. If the bending radius is undersize, a flat tube of the heat exchanger is deformed and a fin of the heat exchanger is torn, such that a heat exchange efficiency is affected, thus reducing a performance, even leading to a leakage of the flat tube and causing the heat exchanger to be scrapped. In addition, an excessive compression and deformation of the header may increase a pressure loss of coolant in the header and thus reduce the performance of the heat exchanger. Therefore, inventors realize that, a control of bending parameters is a factor affecting the performance, reliability and mounting-application convenience of the bent heat exchanger.
  • an objective of the present disclosure is to provide a bent heat exchanger.
  • the bending radius of the header is controlled, such that when the heat exchanger is bent along the header, the fin at an outer side of the bending will not be torn, and the header after being bent has a reduced deformation and an enough bursting strength.
  • the bent heat exchanger includes: a first header and a second header, each of the first header and the second header including at least one bent segment and a straight segment adjoining the bent segment, the bent segment of the first header being corresponding to the bent segment of the second header; a plurality of flat tubes, two ends of the flat tube being connected to the first header and the second header respectively, the plurality of flat tubes being spaced apart from one another along axial directions of the first header and the second header; and fins, each disposed between adjacent flat tubes, extending in a corrugated shape along a length direction of the flat tube, and including flat-straight segments and arc segments, each arc segment being connected between adjacent flat-straight segments.
  • a thickness of the fin is denoted as FT
  • the first header and the second header have different outer diameters, in which a larger one of the outer diameters of the first header and the second header is denoted as OD
  • the first header and the second header have different wall thicknesses, in which a larger one of the wall thicknesses of the first header and the second header is denoted as T
  • a width of the flat tube is denoted as W
  • an arc radius of the fin is denoted as FR
  • a height of the fin is denoted as FH, in which 0.01 ⁇ (100 ⁇ FT ⁇ FR ⁇ T)/(FH ⁇ OD) ⁇ 9.
  • the bent heat exchanger includes: a first header and a second header, each of the first header and the second header including at least one bent segment and a straight segment adjoining the bent segment, the bent segment of the first header being corresponding to the bent segment of the second header; a plurality of flat tubes, two ends of the flat tube being connected to the first header and the second header respectively, the plurality of flat tubes being spaced apart from one another along axial directions of the first header and the second header; and a fin disposed between adjacent flat tubes, extending in a corrugated shape along a length direction of the flat tube, and including a plurality of flat-straight segments and an arc segment connected between the flat-straight segments.
  • a thickness of the fin is denoted as FT
  • the first header and the second header have an equal outer diameter and both outer diameters of the first header and the second header are donated as OD
  • the first header and the second header have an equal wall thickness and both wall thicknesses of the first header and the second header are donated as T
  • a width of the flat tube is denoted as W
  • an arc radius of the fin is denoted as FR
  • a height of the fin is denoted as FH, in which 0.01 ⁇ (100 ⁇ FT ⁇ FR ⁇ T)/(FH ⁇ OD) ⁇ 9.
  • the thickness FT of the fin, the arc radius FR of a top of the fin and the height FH of the fin may cause an apparent tensile stress for the stretch of the fin during bending.
  • the tensile stress is denoted as Sfin.
  • Sfin tensile stress
  • the wall thickness T and the outer diameter OD of the header may cause an apparent bending stress during bending.
  • the bending stress is denoted as Shd.
  • Shd When the bending stress Shd is larger than a tensile strength ⁇ b of the header, the header will have a failure, and will have the failure under a certain pressure.
  • the relative tensile stress Shd/ ⁇ b on the header along with the increasing of the recombination parameter, firstly decreases (the strength of the header is not enough when the wall thickness of the header is relatively small), and then rises gradually (a bending deformation stress rises when the relative wall thickness of the header is relatively large).
  • a bending radius of a traditional copper-tube and fin heat exchanger of an air conditioner generally is more than R50 mm.
  • a lower limit and an upper limit of the recombination parameter (100 ⁇ FT ⁇ FR ⁇ T)/(FH ⁇ OD) are respectively determined as 0.01 and 9.
  • the bent heat exchanger according to embodiments of the present disclosure has advantages of a reasonable structure, a steady construction, a high heat exchange efficiency, a great heat exchange performance, a high reliability, an easy mounting and application, and a great drainage performance.
  • bent heat exchanger according to the above embodiments of the present disclosure may further include following additional technical features.
  • 0.0061 ⁇ FR/FH ⁇ 0.6 0.0061 ⁇ FR/FH ⁇ 0.6.
  • 0.0005 ⁇ FT/OD ⁇ 0.015 0.0005 ⁇ FT/OD ⁇ 0.015.
  • 0.0016 ⁇ FR/OD ⁇ 0.4 0.0016 ⁇ FR/OD ⁇ 0.4.
  • the bent heat exchanger is configured to be C-shaped or L-shaped.
  • the bent heat exchanger 10 includes a first header 101, a second header 102, fins 104 and a plurality of flat tubes 103.
  • Each of the first header 101 and the second header 102 includes at least one bent segment 1011 and a straight segment 1012 adjoining the bent segment 1011.
  • the bent segment 1011 of the first header 101 is corresponding to the bent segment 1011 of the second header 102.
  • Two ends of the flat tube 103 are connected to the first header 101 and the second header 102 respectively, the plurality of flat tubes 103 are spaced apart from one another along axial directions of the first header 101 and the second header 102.
  • Each fin 104 is disposed between adjacent flat tubes 103, and extends in a corrugated shape along a length direction of the flat tube 103.
  • Each fin 104 includes flat-straight segments 1041 and arc segments 1042, and each arc segment 1042 is connected between adjacent flat-straight segments 1041.
  • a thickness of the fin 104 is denoted as FT
  • the first header 101 and the second header 102 may have different outer diameters, and a larger one of the outer diameters of the first header 101 and the second header 102 is denoted as OD.
  • the first header 101 and the second header 102 may have an equal outer diameter, and both the outer diameters of the first header 101 and the second header 102 are donated as OD.
  • the first header 101 and the second header 102 may have different wall thicknesses, and a larger one of the wall thicknesses of the first header 101 and the second header 102 is denoted as T.
  • the first header 101 and the second header 102 may have an equal wall thickness, and both the wall thicknesses of the first header 101 and the second header 102 are donated as T.
  • a width of the flat tube 103 is denoted as W
  • an arc radius of the fin 104 is denoted as FR
  • a height of the fin 104 is denoted as FH, in which 0.01 ⁇ (100 ⁇ FT ⁇ FR ⁇ T)/(FH ⁇ OD) ⁇ 9.
  • the first header 101 and the second header 102 may have an equal outer diameter OD, and may as well have different outer diameters.
  • the larger one of the outer diameters of the first header 101 and the second header 102 is donated as OD.
  • the first header 101 and the second header 102 may have an equal wall thickness T, and may as well have different wall thicknesses.
  • the larger one of the wall thicknesses of the first header 101 and the second header 102 is denoted as T.
  • the first header 101 and the second header 102 may have an equal outer diameter and an equal wall thickness.
  • the outer diameter OD may be the outer diameter of any one of the first header 101 and the second header 102
  • the wall thickness T may be the wall thickness of any one of the first header 101 and the second header 102.
  • a thickness (the width W of the flat tube 103) of a coil When a thickness (the width W of the flat tube 103) of a coil is determined, a decrease of a bending radius R will cause an overall bursting strength of the coil to be lowered, and therefore the wall thicknesses of the first header 101 and the second header 102 need to be increased (the outer diameters of the first header 101 and the second header 102 are not changed), or the outer diameters of the first header 101 and the second header 102 need to be decreased (the wall thicknesses of the first header 101 and the second header 102 are not changed), so as to meet strength requirements.
  • increasing the wall thicknesses of the first header 101 and the second header 102 not only increases a cost, but also decreases internal volumes of the first header 101 and the second header 102.
  • the strength of the fin 104 is in direct proportion to the thickness of the fin 104, a thicker fin 104 may resist a larger bending stress, and therefore it is not easy for the flat tube 103 after being bent to have a wavy deformation. But, increasing the thickness of the fin 104 not only results in an increased cost of the bent heat exchanger 10, but also causes an increased ventilation resistance, thus reducing a performance of the unit.
  • the height of the fin 104 will as well influence the bending performance, the larger the height of the fin 104 is, the larger a spacing between the flat tubes 103 is, and thus a support force to the first header 101 and the second header 102 within per unit length is smaller, such that it is easier for the first header 101 and the second header 102 is to be deformed after being bent.
  • the thickness FT of the fin 104, the arc radius FR of the top of the fin 104 and the height FH of the fin 104 may cause an apparent tensile stress for the stretch of the fin 104 during the bending.
  • the tensile stress is denoted as Sfin.
  • Sfin The tensile stress
  • the wall thicknesses T and the outer diameters OD of the first header 101 and the second header 102 may cause an apparent bending stress during the bending, and the bending stress is denoted as Shd.
  • Shd the bending stress Shd is larger than a tensile strength ⁇ b of the first header 101 and the second header 102
  • the first header 101 and the second header 102 may have a failure, and may have the failure under a certain pressure.
  • the relative stress Sfin/ ⁇ s on the fin 104 decreases generally along with the rising of the bending radius R.
  • a bending radius of a traditional copper-tube and fin heat exchanger of an air conditioner is generally more than R50 mm.
  • a lower limit and an upper limit of the recombination parameter (100 ⁇ FT ⁇ FR ⁇ T)/(FH ⁇ OD) are determined respectively as 0.01 and 9.
  • the bent heat exchanger 10 has advantages of a reasonable structure, a steady construction, a high heat exchange efficiency, a great heat exchange performance, a high reliability, an easy mounting and application, and a great drainage performance.
  • the axial directions of the first header 101 and the second header 102 may be the length directions of the first header 101 and the second header 102.
  • the larger outer diameter OD of the outer diameters of the first header 101 and the second header 102, the larger wall thickness T of the wall thicknesses of the first header 101 and the second header 102, the width W of the flat tube 103, the arc radius FR of the fin 104 and the height FH of the fin 104 is millimeter, 0.01 mm ⁇ (100 ⁇ FT ⁇ FR ⁇ T)/(FH ⁇ OD) ⁇ 9mm, the same as below.
  • the bent heat exchanger 10 may be configured to be C-shaped.
  • the bent heat exchanger 10 may be bent three times along the length directions of the first header 101 and the second header 102. That is, each of the first header 101 and the second header 102 may include three bent segments 1011 and four straight segments 1012, and each bent segment 1011 is located between two adjacent straight segments 1012.
  • bent heat exchanger 10 may also be configured to be L-shaped.
  • the fin 104 is not torn, the flat tube 103 is not deformed and the coil has the enough bursting strength.
  • the heat exchange efficiency and the drainage performance of the bent heat exchanger 10 are further improved.
  • the thickness FT of the fin 104, the arc radius FR of the fin 104, the height FH of the fin 104, and the larger outer diameter OD of the outer diameters of the first header 101 and the second header 102 meet a following relation: 0.0004 ⁇ (FT ⁇ FR)/(FH ⁇ OD) ⁇ 0.59.
  • the thickness FT of the fin 104, the arc radius FR of the fin 104 and the height FH of the fin 104 may meet a following relation: 0.02 ⁇ (FT ⁇ FR)/FH ⁇ 6.
  • the thickness FT of the fin 104 and the height FH of the fin 104 may meet a following relation: 0.002 ⁇ FT/FH ⁇ 0.04.
  • the arc radius FR of the fin 104 and the height FH of the fin 104 may meet a following relation: 0.0061 ⁇ FR/FH ⁇ 0.6.
  • FR/FH 0.3.
  • the fin 104 is not torn, the flat tube 103 is not deformed and the coil has the enough bursting strength.
  • the heat exchange efficiency and the drainage performance of the bent heat exchanger 10 are further improved.
  • the larger wall thickness T of the wall thicknesses of the first header 101 and the second header 102 and the larger outer diameter OD of the outer diameters of the first header 101 and the second header 102 may meet a following relation: 0.04 ⁇ T/OD ⁇ 0.25.
  • the fin 104 is not torn, the flat tube 103 is not deformed and the coil has the enough bursting strength. Also, the heat exchange efficiency and the drainage performance of the bent heat exchanger 10 are further improved.
  • the thickness FT of the fin 104 and the larger outer diameter OD of the outer diameters of the first header 101 and the second header 102 may meet a following relation: 0.0005 ⁇ FT/OD ⁇ 0.015.
  • the fin 104 is not torn, the flat tube 103 is not deformed and the coil has the enough bursting strength. Also, the heat exchange efficiency and the drainage performance of the bent heat exchanger 10 are further improved.
  • the arc radius FR of the fin 104 and the larger outer diameter OD of the outer diameters of the first header 101 and the second header 102 meet a following relation: 0.0016 ⁇ FR/OD ⁇ 0.4.
  • the fin 104 is not torn, the flat tube 103 is not deformed and the coil has the enough bursting strength. Also, the heat exchange efficiency and the drainage performance of the bent heat exchanger 10 are further improved.
  • the height FH of the fin 104 and the larger outer diameter OD of the outer diameters of the first header 101 and the second header 102 may meet a following relation: 0.05 ⁇ FH/OD ⁇ 2.
  • 0.1 ⁇ FH/OD 0.1 ⁇ FH/OD ⁇ 1.
  • 0.3 ⁇ FH/OD 0.3 ⁇ FH/OD ⁇ 0.7.
  • first and second are used herein for purposes of description and are not intended to indicate or imply relative importance or significance or to imply the number of indicated technical features.
  • the feature defined with “first” and “second” may comprise one or more of this feature.
  • a plurality of means two or more than two, unless specified otherwise.
  • the terms “mounted,” “connected,” “coupled,” “fixed” and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications of two elements, which can be understood by those skilled in the art according to specific situations.
  • a structure in which a first feature is "on" or “below” a second feature may include an embodiment in which the first feature is in direct contact with the second feature, and may also include an embodiment in which the first feature and the second feature are not in direct contact with each other, but are contacted via an additional feature formed therebetween.
  • a first feature "on,” “above,” or “on top of” a second feature may include an embodiment in which the first feature is right or obliquely “on,” “above,” or “on top of” the second feature, or just means that the first feature is at a height higher than that of the second feature; while a first feature “below,” “under,” or “on bottom of” a second feature may include an embodiment in which the first feature is right or obliquely “below,” “under,” or “on bottom of” the second feature, or just means that the first feature is at a height lower than that of the second feature.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP15788925.4A 2014-05-06 2015-05-06 Gebogener wärmetauscher Active EP3141858B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410188198.0A CN103925745B (zh) 2014-05-06 2014-05-06 折弯式换热器
PCT/CN2015/078406 WO2015169231A1 (zh) 2014-05-06 2015-05-06 折弯式换热器

Publications (3)

Publication Number Publication Date
EP3141858A1 true EP3141858A1 (de) 2017-03-15
EP3141858A4 EP3141858A4 (de) 2018-01-24
EP3141858B1 EP3141858B1 (de) 2021-01-20

Family

ID=51144046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15788925.4A Active EP3141858B1 (de) 2014-05-06 2015-05-06 Gebogener wärmetauscher

Country Status (6)

Country Link
US (1) US20170059252A1 (de)
EP (1) EP3141858B1 (de)
KR (1) KR101897385B1 (de)
CN (1) CN103925745B (de)
MX (1) MX386160B (de)
WO (1) WO2015169231A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110160283A (zh) * 2017-09-14 2019-08-23 宁波德业科技集团有限公司 一种超薄空调用蒸发器
US20220196344A1 (en) * 2019-04-02 2022-06-23 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Flat tube and heat exchanger provided with same
US11585609B2 (en) 2014-05-06 2023-02-21 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Bent heat exchanger

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103925745B (zh) * 2014-05-06 2016-04-06 杭州三花微通道换热器有限公司 折弯式换热器
USD805616S1 (en) * 2015-04-30 2017-12-19 Samwon Industrial Co., Ltd. Fin tube assembly for heat exchanger
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CN103925745A (zh) 2014-07-16
CN103925745B (zh) 2016-04-06
EP3141858B1 (de) 2021-01-20
WO2015169231A1 (zh) 2015-11-12
EP3141858A4 (de) 2018-01-24
US20170059252A1 (en) 2017-03-02
MX386160B (es) 2025-03-18
MX2016014494A (es) 2017-04-06
KR20160148010A (ko) 2016-12-23

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