EP3332206A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur

Info

Publication number
EP3332206A1
EP3332206A1 EP16745757.1A EP16745757A EP3332206A1 EP 3332206 A1 EP3332206 A1 EP 3332206A1 EP 16745757 A EP16745757 A EP 16745757A EP 3332206 A1 EP3332206 A1 EP 3332206A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
wave
tubes
curved
segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16745757.1A
Other languages
German (de)
English (en)
Other versions
EP3332206B1 (fr
Inventor
Thomas Schiehlen
Holger Schroth
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP3332206A1 publication Critical patent/EP3332206A1/fr
Application granted granted Critical
Publication of EP3332206B1 publication Critical patent/EP3332206B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F28F1/126—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
    • F28F1/126—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
    • F28F1/24—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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/02—Arrangements of fins common to different heat exchange sections, the fins being in contact with different heat exchange media
    • 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
    • F28F2215/08—Fins with openings, e.g. louvers

Definitions

  • the present invention relates to a heat exchanger with tubes and interposed corrugated fins with straight flanks and each having a curvature troughs and crests, according to the preamble of claim 1.
  • Heat exchangers can be provided with improved efficiency.
  • the heat exchanger network has a plurality of flat tubes and arranged between the flat tubes, in heat-conducting contact with these lamellae and wherein the heat-conducting contact is made solely by mutual tension of the flat tubes and fins.
  • the slats are in the direction of
  • corrugated ribs are used between individual tubes of such heat exchangers in a known manner, which improves the heat transfer usually soldered to the pipes.
  • the adhesives used for this purpose for example with
  • the present invention deals with the problem, for a
  • Heat exchanger of the generic type to provide an improved or at least one alternative embodiment, which overcomes in particular the disadvantages known from the prior art.
  • the present invention is based on the general idea to be able to create a heat exchanger on the one hand, which can be glued, and On the other hand, however, this comparatively inexpensive and with
  • the heat exchanger according to the invention has in a known manner tubes and interposed corrugated fins with straight flanks and each having a curvature having wave troughs and wave crests.
  • the curvature of a wave crest can alternatively be designed in two embodiments according to the invention. With the two
  • the corrugated fin according to the invention is in bionic form based on the shape of a human foot. It is particularly advantageous that results in a pressure-stable rib or flank of the corrugated fin, which avoids buckling under pressurization.
  • the domed first section has a positive slope of +0.1 to + 0.5% while the linear second section has a negative slope of -0.1 to -0.5%.
  • the slope of the curved first section is determined between its beginning and end point.
  • the wave crest can thus correspond to a mirrored wave valley or vice versa.
  • Section again passes over a high point in the second section and wherein at unloaded corrugated fins between two adjacent wave crests a tolerance distance a remains, which is dimensioned so that it is pressed when installed in the heat exchanger state to zero and thereby abut the wave crests to block each other.
  • the two sections are arranged in mirror image to each other, as long as the mirror axis passes through the high point.
  • the horizontal tolerance distance a between two wave crests or between two wave troughs can thus preset determine a possible vertical spring travel, as contact after exhausting this spring travel two adjacent wave peaks or troughs and thus creates a very stable arch structure.
  • Heat exchanger can be increased
  • an opposing gradient of the first and second sections is about 0.3-0.4%. This makes it possible to create a comparatively shallow wave crest or a comparatively shallow wave trough, which on the one hand enables a flat and thus good heat transfer connection to the pipe and
  • an adhesive layer in particular by laminating, is applied on an outer side of the tubes.
  • the adhesive layer can thus be applied, in particular in the form of an adhesive film or an adhesive film, whereby the application of the adhesive layer is possible not only economically but also of extremely high quality.
  • the corrugated fins are made of a good thermally conductive material, preferably aluminum, copper, etc. This can also be a
  • the heat exchanger is expediently designed as an evaporator, as a radiator, as a condenser, as a charge air cooler, as a chiller, as an oil cooler, as a radiator or as a PTC heater.
  • Fig. 1 is a sectional view through an inventive
  • Fig. 2 is a detailed view of the corrugated fin according to the first alternative
  • Fig. 3 is a representation as in Fig. 1, but with corrugated fins according to a
  • Fig. 4 is a detailed view of the corrugated fins according to the second alternative
  • a heat exchanger 1 which can be designed, for example, as an evaporator, as a radiator, as a condenser, as a charge air cooler, as a chiller, as an oil cooler, as a radiator or as a PTC heater, has tubes 2 and interposed therebetween Corrugated ribs 3 with straight edges 4 and each having a bulge 5 having troughs 6 and wave crests 7 (see also Figs., 2 and 4).
  • the corrugated fins 3 are glued to the tubes 2 via an adhesive layer 8.
  • the bulge 5 of a wave crest 6 according to two alternative embodiments formed:
  • this has a curved first section 9 and a linear second section 10, wherein the linear second section 10 is twice as long as the first section 9.
  • the length used for this refers to an extension along a central axis 12.
  • the curved first portion 9 has a slope of 0.1 -0.5%, preferably between +0.3 and +0.4%, while the linear second portion 10 has a gradient of -0 , 1 to -0.5%, preferably from -0.3 to -0.4%.
  • the height of the curvature 5 to the transition into the respective flanks 4 is referred to as shown in FIGS. 2 and 4 with m.
  • its convexity 5 of a wave crest 6 (see Fig. 4) has a curved first section 9 and a second section 10 curved in the same direction and having the same length L (along the central axis 12) and are therefore formed the same length.
  • a tolerance distance a which is dimensioned such that it goes to zero when installed in the heat exchanger 1 state and thereby the wave crests 6 rest on block to each other.
  • the difference between the wave crests 6 and the wave troughs 7 can only be seen in a reflection with respect to the central axis 12, so that the wave crests 6 correspond to the wave troughs 7.
  • the adhesive layer 8 is applied to the outside of the tubes 2, for example by laminating, whereby such an adhesive layer 8, for example in the form of an adhesive film or an adhesive film, not only cost, but also with low layer thickness and can be reliably applied.
  • the individual corrugated fins 3 are glued to the respective adjacent tubes 2, wherein the corrugated fins 3 preferably lie flat against the tubes 2 in the region of their wave crests 6 and their wave troughs 7, thereby enabling a good heat transfer.
  • the corrugated fins 3 according to the invention are preferably formed of aluminum and thus a good heat-conducting material. In theory, a combination of different materials is grateful by gluing the corrugated fins 3 with the tubes 2, so that the corrugated fins 3 can be formed from a different material to the tubes 2, without the risk of contact corrosion exists.
  • Adhesive layer thicknesses which have an insulating effect and thereby cause a reduced performance of the glued heat exchanger 1, can be avoided.
  • an enlargement of the contact surface on the tube 2 can be achieved, whereby a likewise improved heat transfer can be achieved.
  • the embodiment of the corrugated fins 3 shown in FIG. 2 may of course also be formed symmetrically and not as in the example shown asymmetrically.
  • the achievable with the corrugated fin 3 according to the invention spring action can thus compensate comparatively easily even with low layer thicknesses manufacturing tolerances.

Landscapes

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

Abstract

L'invention concerne un échangeur de chaleur (1) muni de tubes (2) entre lesquels sont agencées des nervures ondulées (3) présentant des flancs rectilignes (4), et des creux (7) et des sommets (6) présentant respectivement une courbure (5). L'essentiel de l'invention réside en ce que - la courbure (5) d'un sommet (6) présente une première section (9) courbe et une seconde section (10) linéaire, la seconde section (10) étant deux fois plus longue que la première section (9) et la première section (9) et la seconde section (10) présentant une pente opposée de 0,1 à 0,5 %, ou - la courbure (5) d'un sommet (6) présente une première section (9) courbe et une seconde section (10) de même longueur et courbée dans la même direction. Lorsque les nervures ondulées (3) ne sont pas sollicitées, il reste entre deux sommets (6) adjacents une marge de tolérance (a) qui est dimensionnée de telle manière qu'elle atteint zéro dans l'état de montage dans l'échangeur de chaleur (1), et les sommets (6) reposent ainsi en bloc l'un à côté de l'autre.
EP16745757.1A 2015-08-06 2016-08-02 Échangeur de chaleur Active EP3332206B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015215053.4A DE102015215053A1 (de) 2015-08-06 2015-08-06 Wärmeübertrager
PCT/EP2016/068452 WO2017021416A1 (fr) 2015-08-06 2016-08-02 Échangeur de chaleur

Publications (2)

Publication Number Publication Date
EP3332206A1 true EP3332206A1 (fr) 2018-06-13
EP3332206B1 EP3332206B1 (fr) 2019-04-03

Family

ID=56561372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16745757.1A Active EP3332206B1 (fr) 2015-08-06 2016-08-02 Échangeur de chaleur

Country Status (5)

Country Link
US (1) US20190242658A1 (fr)
EP (1) EP3332206B1 (fr)
CN (1) CN107850402A (fr)
DE (1) DE102015215053A1 (fr)
WO (1) WO2017021416A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11032944B2 (en) * 2017-09-29 2021-06-08 Intel Corporation Crushable heat sink for electronic devices
EP3540354A1 (fr) * 2018-03-15 2019-09-18 Mahle International GmbH Composite d'ailette ondulée pour échangeur de chaleur
DE102020212488A1 (de) 2020-10-02 2022-04-07 Mahle International Gmbh Verfahren und Anordnung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1301665A (fr) * 1969-05-09 1973-01-04
US4067219A (en) * 1977-03-23 1978-01-10 Bernard J. Wallis Heat exchanger fin roll
US4645000A (en) * 1986-04-21 1987-02-24 General Motors Corporation Tube and fin heat exchanger
JP3814846B2 (ja) * 1994-12-26 2006-08-30 株式会社デンソー コルゲートフィン用成形ローラ及びコルゲートフィン成形方法
ES2205427T3 (es) * 1997-08-19 2004-05-01 Gruter Elektroapparate Ag Cañon extrusor con un intercambiador de calor.
EP1103316B1 (fr) * 1999-11-26 2006-05-17 Calsonic Kansei Corporation Méthode de fabrication d'une ailette ondulée
DE20118511U1 (de) 2000-11-01 2002-02-14 Autokuehler Gmbh & Co Kg Wärmeaustauschernetz und damit hergestellter Wärmeaustauscher
JP2003279278A (ja) * 2002-01-15 2003-10-02 Denso Corp 熱交換器
DE10228697C5 (de) * 2002-06-27 2007-05-16 Gea Energietechnik Gmbh Wärmeübertrager
JP2005061648A (ja) * 2003-08-18 2005-03-10 Zexel Valeo Climate Control Corp 熱交換器
DE102006035209A1 (de) 2006-07-29 2008-01-31 Modine Manufacturing Co., Racine Wellrippe und Wärmetauscher
US7850796B2 (en) * 2007-08-20 2010-12-14 Denso Corporation Aluminum alloy fin material for brazing
CN101846475B (zh) * 2009-03-25 2013-12-11 三花控股集团有限公司 用于热交换器的翅片以及采用该翅片的热交换器
CN101526324B (zh) * 2009-04-13 2010-07-28 三花丹佛斯（杭州）微通道换热器有限公司 翅片、具有该翅片的换热器和换热器装置
CN101691975B (zh) * 2009-09-03 2011-06-29 三花丹佛斯（杭州）微通道换热器有限公司 用于热交换器的翅片以及具有该翅片的热交换器
DE102013206056A1 (de) * 2013-03-18 2014-09-18 Behr Gmbh & Co. Kg Verfahren zur Herstellung von verbundenen Wärmeübertragerelementen
DE102013226542A1 (de) * 2013-12-18 2015-06-18 MAHLE Behr GmbH & Co. KG Heizvorrichtung

Also Published As

Publication number Publication date
EP3332206B1 (fr) 2019-04-03
CN107850402A (zh) 2018-03-27
WO2017021416A1 (fr) 2017-02-09
US20190242658A1 (en) 2019-08-08
DE102015215053A1 (de) 2017-02-09

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