EP3899406B1 - Wärmetauscher mit gelöteter seitenplatte - Google Patents

Wärmetauscher mit gelöteter seitenplatte Download PDF

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Publication number
EP3899406B1
EP3899406B1 EP19848887.6A EP19848887A EP3899406B1 EP 3899406 B1 EP3899406 B1 EP 3899406B1 EP 19848887 A EP19848887 A EP 19848887A EP 3899406 B1 EP3899406 B1 EP 3899406B1
Authority
EP
European Patent Office
Prior art keywords
flat body
heat exchanger
attachment tabs
extensions
heat exchange
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
EP19848887.6A
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English (en)
French (fr)
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EP3899406A1 (de
Inventor
Rémi TOURNOIS
Yves SEYNAT
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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Publication date
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP3899406A1 publication Critical patent/EP3899406A1/de
Application granted granted Critical
Publication of EP3899406B1 publication Critical patent/EP3899406B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0435—Combination of units extending one behind the other
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/08—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes pressed; stamped; deep-drawn
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/08—Fastening; Joining by clamping or clipping
    • F28F2275/085—Fastening; Joining by clamping or clipping with snap connection

Definitions

  • the invention relates to the field of heat exchangers and more specifically to heat exchangers having a bundle of tubes and comprising end cheeks.
  • the present invention relates to a heat exchanger corresponding to the preamble of claim 1, as disclosed by document FR 2 880 679 .
  • Heat exchangers for example of the air/coolant type, generally comprise a heat exchange bundle comprising a plurality of stacked tubes. At the ends of the heat exchange bundle is arranged a manifold inside which the heat transfer fluid is intended to circulate so that it circulates within the tubes. As for the air, it circulates between the tubes.
  • the heat exchanger On either side of the stack of tubes of the heat exchange bundle, the heat exchanger generally comprises end cheeks brazed onto the heat exchange bundle. These end cheeks allow in particular the attachment of an aerodynamic element such as a deflector or a seal in order to block or deflect the circulation of air on the sides of the heat exchanger. In order to fix this aerodynamic element, the edges of the end cheek are raised in order to form a rim on which the aerodynamic element engages.
  • One of the aims of the present invention is to remedy at least partially the drawbacks of the prior art and to propose a heat exchanger whose fixing of the end flanges is improved.
  • This difference in width makes it possible to increase the general surface of the flattened body and in particular of its second surface.
  • the useful surface for fixing the end plate to the heat exchange bundle is increased and allows better fixing.
  • This is particularly useful in the context of thin heat exchangers which have a width comprised for example between 12 and 18 mm.
  • an extension is disposed between each pair of fixing tabs disposed along the sides of said flattened body.
  • the fixing lugs of a first side of the flattened body are arranged opposite the fixing lugs of a second side opposite the first side, and that the extensions of the first side of the flattened body are arranged opposite the extensions on the second side.
  • the fixing lugs of a first side are arranged opposite the extensions of a second side opposite the first side, and the extensions of the first side are arranged opposite the fixing lugs of the second side.
  • the fixing lugs comprise at their top a gripping rim configured to retain the aerodynamic element.
  • the fixing lugs on the same side are interconnected at their top by the gripping rim.
  • the fixing lugs and the extensions of the flattened body are integral with said flattened body.
  • the fixing lugs and the extensions of the flattened body are produced by stamping.
  • first element or second element as well as first parameter and second parameter or else first criterion and second criterion, etc.
  • first criterion and second criterion etc.
  • it is a simple indexing to differentiate and name elements or parameters or criteria that are close, but not identical.
  • This indexing does not imply a priority of one element, parameter or criterion with respect to another and such denominations can easily be interchanged without departing from the scope of the present description.
  • This indexing does not imply an order in time either, for example to assess such and such a criterion.
  • the figure 1 shows a semi-exploded partial representation of a heat exchanger 1.
  • the heat exchanger 1 comprises a heat exchange bundle 3 comprising a plurality of stacked tubes 5 and a header box 7.
  • a header box 7 is arranged at each ends of the heat exchange bundle 3.
  • a heat transfer fluid is intended to circulate within the heat exchanger 1, more particularly in the header boxes 7 which redistribute the heat transfer fluid in the tubes 5.
  • the header box 7 comprises a header plate 11 through which tubes 5 pass.
  • the connection between header plate 11 and tubes 5 is sealed. This leaktight connection can be made by brazing in the context of a so-called brazed heat exchanger or else by means of one or more seals in the context of a mechanical or mechanically brazed heat exchanger.
  • Collector plate 11 is covered by a cover 9 so as to form a free volume inside which the heat transfer fluid circulates in order to be redistributed within the various tubes 5.
  • This cover 9 comprises a fluid inlet and/or outlet coolant (not visible).
  • disturbing elements for example fins, which allow a disturbance of the flow of the second heat transfer fluid, for example air, intended to circulate between said tubes 5.
  • an end cheek 13 On each side of the stack of tubes 5 is arranged an end cheek 13.
  • This end cheek 13 is made of a metallic material, preferably identical to that of the tubes 5 or the disturbing elements.
  • the end plate 13 is brazed on the heat exchange bundle 3. It can be brazed directly on a tube 5 or else on a disturbing element arranged on the side of the stack of tubes 5.
  • This end plate 13 is configured to allow the attachment of an aerodynamic element 15, for example a deflector or a seal in order to block or deflect the circulation of the second heat transfer fluid on the sides of the heat exchanger 1.
  • the figure 2a and 2b show in more detail the structure of an end cheek 13.
  • This end cheek 13 comprises a flattened body 130 comprising a first surface 130a (visible on the figure 2a ) intended to face an aerodynamic element 15 and a second so-called brazing surface 130b (visible in FIG. 2b), opposite the first surface 130a and brazed to the heat exchange bundle 3.
  • the end flange 13 has a total width substantially equal to that of the heat exchanger 1 and more particularly of its heat exchange bundle 3, so that no element of the end plate 13 protrudes in width in order to limit the size of heat exchanger 1.
  • the end cheek 13 also includes fixing lugs 132 configured to receive the aerodynamic element 15. These fixing lugs 132 are arranged on the sides of said flattened body 130 and project in the opposite direction to the heat exchange beam 3 .
  • These fixing lugs 132 may in particular comprise at their top a gripping rim 136 configured to retain the aerodynamic element 15.
  • This gripping rim 136 can in particular be a recess of the fixing lug 132 on which a hooked edge 154 (visible on the figure 3a and 3b ) of the aerodynamic element 15.
  • the fixing lugs 132 can in particular be made in one piece with the flattened body 130.
  • the fixing lugs 132 can then be produced by stamping.
  • the hooking rim 136 must be contained within the total width of the end cheek 13, thus, at the level of the fixing lugs 132, the width of the flattened body 130 and therefore the second surface 130b is all the more reduced.
  • the figure 3a and 3b show in more detail the structure of two halves of an aerodynamic element 15 and in particular of their hooked edge 154.
  • the aerodynamic element 15 here comprises a surface 151 and on either side of this surface 151 a fold 153 returning towards inside surface 151 (on the figure 3a and 3b , only one fold 153 is illustrated instead of two).
  • This fold 153 thus forms the hook rim 154 which hooks onto the grip rim 136 of end cheek 13.
  • the aerodynamic element 15 may also include a foot 152 intended to bear against the first surface 130a of the end flange 13.
  • the aerodynamic element 15 may be made of plastic or elastomer material.
  • the aerodynamic element 15 can be put in place on the end cheek 13 by elastic deformation so that its hooked edges 154 come into engagement with the gripping edges 136 of the fixing lugs 132 on the two sides of the cheek 13.
  • the aerodynamic element 15 can also be put in place on the end cheek 13 by sliding along the end cheek 13.
  • the fold 153 and the hooked edge 154 are simple.
  • the fold 153 has an abutment 155 which, in combination with the hooked edge 154, forms a slide 156 into which the hooking edges 136 of the fixing lugs 132 are inserted.
  • the end cheek 13 also includes extensions 134 of the flattened body 130. These extensions 134 extend in the same general plane as the flattened body 130. At least one extension 134 is disposed between a pair of fixing lugs 130 disposed on the same side of said flattened body 130. In the example presented to figure 2a and 2b, a single extension 134 is arranged between the fixing pairs 130. It is quite possible to imagine an embodiment in which there are several extensions 134 between two fixing lugs 130 on the same side of the body flattened 130.
  • These extensions 134 are in particular arranged between the fixing lugs 132 of the pair of fixing lugs 132 so that the width L1 of the flattened body 130 between the pair of fixing lugs 132 and a fixing lug 132 arranged on the opposite side of said flattened body 130, facing the pair of fixing lugs 132, is less than the width L2 of the flattened body 130 at the level of the at least one extension 134.
  • This difference in width makes it possible to increase the general surface of the flattened body 132 and in particular its second surface 130b.
  • the useful surface for fixing the end plate 13 to the heat exchange bundle 3 is increased and allows better fixing. This is particularly useful in the context of thin heat exchangers 1 which have a width comprised for example between 12 and 18 mm.
  • These extensions 134 preferably have a length such that the total width of the sealing flange 13 does not exceed that of the heat exchanger 1.
  • the extensions 134 can also in particular come in one piece with the flattened body 130.
  • the extensions 134 can then be produced by stamping.
  • extensions 134 as well as the fixing lugs 132 can be integral with the flattened body 130 makes it possible to produce the end flange 13 in a single piece, which gives it better solidity. More particularly the extensions 134 as well as the fixing lugs 132 can be produced by stamping.
  • the figure 2a and 2b show in particular an end flange 13 according to a first embodiment.
  • the fixing lugs 132 on a first side of the flattened body 130 are arranged opposite the fixing lugs 132 on a second side opposite the first side.
  • the extensions 134 on the first side of the flattened body 130 are arranged opposite the extensions 134 on the second side.
  • the figure 4a and 4b show a variant of the first embodiment of the figure 2a and 2b.
  • the fixing lugs 132 on the same side are connected to each other at their top by the hooking flange 136.
  • the extensions 134 are then arranged opposite this hooking flange 136 connecting the tops of the hooking tabs fixing 132.
  • the figure 5a and 5b show for their part an end flange 13 according to a second embodiment.
  • the fixing lugs 132 on a first side are arranged opposite the extensions 134 on a second side opposite the first side.
  • the extensions 134 on the first side are arranged facing the fixing lugs 132 on the second side.
  • the figure 6a and 6b show a variant of this second embodiment of the figure 5a and 5b .
  • the fixing lugs 132 on the same side are connected to each other at their top by the gripping rim 136. This thus makes it possible to increase the gripping surface between the end flange 13 and the aerodynamic element 15 and thus improve its attachment while retaining a second surface 130b sufficient for good soldering.

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

Claims (8)

  1. Wärmetauscher (1), insbesondere für ein Kraftfahrzeug, aufweisend:
    - ein Wärmetauschbündel (3), das eine Mehrzahl von Rohren (5) umfasst, die gestapelt sind und in denen ein erstes Wärmeträgerfluid zirkulieren soll, und
    - eine Endwange (13), die auf jeder Seite des Stapels aus Rohren (5) angeordnet ist, wobei die Endwange (13) an das Wärmetauschbündel (3) gelötet ist, dadurch gekennzeichnet, dass die Endwangen (13) aufweisen:
    - einen abgeflachten Körper (130), der eine erste Fläche (130a) umfasst, die dazu bestimmt ist, gegenüber einem aerodynamischen Element (15) zu sein, und eine zweite Fläche (130b), Lötfläche genannt, die zu der ersten Fläche (130a) entgegengesetzt ist und an das Wärmetauschbündel (3) gelötet ist,
    - Befestigungslaschen (132), die dazu ausgestaltet sind, das aerodynamische Element (15) aufzunehmen, und an den Seiten des abgeflachten Körpers (130) angeordnet sind, wobei die Befestigungslaschen (132) in die zum Wärmetauschbündel (3) entgegengesetzte Richtung vorspringen,
    - mindestens eine Erweiterung (134) des abgeflachten Körpers (130), die sich in der gleichen Hauptebene wie der abgeflachte Körper (130) erstreckt und zwischen einem auf derselben Seite des abgeflachten Körpers (130) angeordneten Paar Befestigungslaschen (132) angeordnet ist und so, dass die Breite (L1) des abgeflachten Körpers (130) zwischen dem Paar Befestigungslaschen (132) und einer Befestigungslasche (132), die auf der entgegengesetzten Seite des abgeflachten Körpers (130) angeordnet ist, gegenüber dem Paar Befestigungslaschen (132), kleiner als die Breite (L2) des abgeflachten Körpers (130) auf Höhe der mindestens einen Erweiterung (134) ist.
  2. Wärmetauscher (1) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass eine Erweiterung (134) zwischen jedem Paar Befestigungslaschen (132) angeordnet ist, das entlang der Seiten des abgeflachten Körpers (130) angeordnet ist.
  3. Wärmetauscher (1) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Befestigungslaschen (132) einer ersten Seite des abgeflachten Körpers (130) gegenüber den Befestigungslaschen (132) einer zweite Seite angeordnet sind, die zu der ersten Seite entgegengesetzt ist, und dass die Erweiterungen (134) der ersten Seite des abgeflachten Körpers (130) gegenüber den Erweiterungen (134) der zweiten Seite angeordnet sind.
  4. Wärmetauscher (1) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Befestigungslaschen (132) einer ersten Seite gegenüber den Erweiterungen (134) einer zweite Seite angeordnet sind, die zu der ersten Seite entgegengesetzt ist, und dass die Erweiterungen (134) der ersten Seite gegenüber den Befestigungslaschen (132) der zweiten Seite angeordnet sind.
  5. Wärmetauscher (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Befestigungslaschen (132) an ihrem Scheitelpunkt eine Einhakkante (136) aufweisen, die dazu ausgestaltet ist, das aerodynamische Element (15) zu halten.
  6. Wärmetauscher (1) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Befestigungslaschen (132) derselben Seite untereinander an ihrem Scheitelpunkt durch die Einhakkante (136) verbunden sind.
  7. Wärmetauscher (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Befestigungslaschen (132) und die Erweiterungen (134) des abgeflachten Körpers (130) einstückig mit dem abgeflachten Körper (130) sind.
  8. Wärmetauscher (1) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Befestigungslaschen (132) und die Erweiterungen (134) des abgeflachten Körpers (130) durch Tiefziehen ausgeführt sind.
EP19848887.6A 2018-12-19 2019-12-19 Wärmetauscher mit gelöteter seitenplatte Active EP3899406B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1873426A FR3090837B1 (fr) 2018-12-19 2018-12-19 Échangeur de chaleur avec joue d’extrémité brasée
PCT/FR2019/053198 WO2020128360A1 (fr) 2018-12-19 2019-12-19 Échangeur de chaleur avec joue d'extrémité brasée

Publications (2)

Publication Number Publication Date
EP3899406A1 EP3899406A1 (de) 2021-10-27
EP3899406B1 true EP3899406B1 (de) 2022-08-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19848887.6A Active EP3899406B1 (de) 2018-12-19 2019-12-19 Wärmetauscher mit gelöteter seitenplatte

Country Status (5)

Country Link
US (1) US11965696B2 (de)
EP (1) EP3899406B1 (de)
CN (1) CN113412408B (de)
FR (1) FR3090837B1 (de)
WO (1) WO2020128360A1 (de)

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FR2880679B1 (fr) * 2005-01-12 2007-04-06 Valeo Systemes Thermiques Joue laterale pour echangeur de chaleur et procede pour sa fabrication

Also Published As

Publication number Publication date
US20220018604A1 (en) 2022-01-20
CN113412408A (zh) 2021-09-17
US11965696B2 (en) 2024-04-23
CN113412408B (zh) 2023-03-31
FR3090837A1 (fr) 2020-06-26
FR3090837B1 (fr) 2021-01-15
EP3899406A1 (de) 2021-10-27
WO2020128360A1 (fr) 2020-06-25

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