EP1855074B1 - Heat exchanger, in particular oil cooler - Google Patents

Heat exchanger, in particular oil cooler Download PDF

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Publication number
EP1855074B1
EP1855074B1 EP07006495.1A EP07006495A EP1855074B1 EP 1855074 B1 EP1855074 B1 EP 1855074B1 EP 07006495 A EP07006495 A EP 07006495A EP 1855074 B1 EP1855074 B1 EP 1855074B1
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EP
European Patent Office
Prior art keywords
heat exchanger
edge
plate
fastening plate
cut
Prior art date
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EP07006495.1A
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German (de)
French (fr)
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EP1855074A2 (en
EP1855074A3 (en
Inventor
Erik Van Hoof
Rainer Glück
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Modine Manufacturing Co
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Modine Manufacturing Co
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Publication of EP1855074A3 publication Critical patent/EP1855074A3/en
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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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/0075—Supports for plates or plate 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • 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
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089—Oil coolers

Definitions

  • the DE 197 11 258A1 provides a reinforcing plate between the base plate and the lowermost heat exchanger plate.
  • the uppermost mounting plate has the cutout, and the mounting plates underneath are formed at the openings so that they are suitable for receiving seals.
  • the seal is clamped between a bent opening edge of the one mounting plate and a flat opening edge of the other mounting plate. It is slightly biased and does not fall out of position during assembly. These measures improve the ease of installation of the heat exchanger.
  • Another advantage of the invention over the prior art is also that the material usage is reduced.
  • the Fig. 1 shows the lower portion of the heat exchanger, such as an oil cooler 1. It is trough-shaped from a plurality of nested heat exchanger plates 10. They are located at their outer edges 11 abut each other and form a sealed by soldering heat exchanger. Between the heat exchanger plates 10 are formed by the shape of the heat exchanger plates 10 alternately flow channels 5 for the one and the other medium, which flow through this heat exchanger 1 . In the flow channels 5 , as shown here, turbulence inserts 6 can be provided for a better heat exchange or other possibilities not shown turbulence generation.
  • the media can pass through the openings 21 in the part 3 of the mounting plate and through the inlet and outlet channels 22 and 20 in the heat exchanger 1 or by non-illustrated connection piece.
  • the number of openings 21 in the mounting plate 3 are then adjusted as needed. Their position also depends on the choice of the heat exchanger to be fastened.
  • Fig. 2 the invention is shown.
  • a three-piece mounting plate consisting of the parts 2, 3, 4 is provided.
  • the parts 2 and 3 form at the openings 21 seal receivers as for example in the recently filed patent application DE 10 2006 005 084 are described.
  • Fig. 5 To clamp the seal 41 so that it does not fall out during assembly of the oil cooler 1 , the design of the opening 21 in the part 3 of the mounting plate is wavy here on the one hand and on the other hand, the opening 21 in Part 2 has a special shape 40th
  • the special here is the combination of the advantageous retention of the seal 41 by the particular shape 40 and the reinforcement of the lowermost trumpeterptatte 10 at its edge 11 by the bent edge 25 of the cutout 26 of the part 4 of the mounting plate.
  • the individual parts 2, 3, 4 of the mounting plate can be made of the same thickness sheets or of different thickness sheets. Overall, all mounting plates 2, 3, 4 together in the area below the heat exchanger 1 has a smaller thickness D than described in the prior art and in the remaining area B they are just as thick. However, the parts 2 or 4 of the mounting plate should have a greater thickness than the conventional heat exchanger plates 10 in order to obtain a particularly advantageous reinforcement. It may also be advantageous after bending the edge 25 of the mounting plate 4 in the bend 28 by reworking, z. B. by notching, the concerns of the edge 25 of the cutout 26 of the mounting plate on the edge 11 of the heat exchanger plate 10 to improve.
  • Fig. 3 is shown in the plan view of Part 2 or 4 of the mounting plate.
  • Part 2 or 4 of the mounting plate looks like this after the cutout 26 has been punched out.
  • the corners 52 are provided with an entry or corner cut 50 .
  • a region 51 on which no edge 25 of the cutout 26 at the edge 11 of the lowermost heat exchanger plate 10 is applied (see Fig. 4 ).
  • it is also possible to dispense with the single or corner cutout 50 then a lower material thickness at the corners 52 than at the side edges 53 (not shown).
  • the holes 30 are mounted in all parts 2, 3, 4 of the mounting plate and are used to attach the finished brazed heat exchanger 1 to a motor block or housing.

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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)

Description

Die Erfindung betrifft einen Wärmetauscher, insbesondere einen Ölkühler.The invention relates to a heat exchanger, in particular an oil cooler.

Aus der deutschen Patentanmeldung DE 10 2004 003 790 A1 ist ein Wärmetauscher/Ölkühler mit einer relativ dicken Grundplatte bekannt, die mit aufwendigen Bearbeitungsschritten wannenförmig ausgehöhlt wird. In diese Hohlform wird dann der Wärmetauscher eingesetzt und anschließend mit der Grundplatte verlötet. Diese Maßnahme dient zur Vermeidung von Rissen im Randbereich der untersten Wärmetauscherplatte auf Grund von thermischen und mechanischen Belastungen.From the German patent application DE 10 2004 003 790 A1 is a heat exchanger / oil cooler with a relatively thick base plate known, which is hollowed trough-shaped with elaborate processing steps. In this mold then the heat exchanger is used and then soldered to the base plate. This measure serves to avoid cracks in the edge region of the lowermost heat exchanger plate due to thermal and mechanical loads.

In der DE 10 2005 048 452A1 wird vorgeschlagen, die Grund - oder Befestigungsplattemit einem Reservoir zu versehen, um überschüssigen Lotwerkstoff aufzunehmen.In the DE 10 2005 048 452A1 It is proposed to provide the base or mounting plate with a reservoir to receive excess solder material.

Die DE 197 11 258A1 sieht eine Verstärkungsplatte zwischen der Grundplatte und der untersten Wärmetauscherplatte vor.The DE 197 11 258A1 provides a reinforcing plate between the base plate and the lowermost heat exchanger plate.

Außerdem sind aus der japanischen Patentanmeldung JP 02-691155 verschiedene Alternativen bekannt, die ebenfalls zur Verstärkung der untersten Wärmetauscherplatte dienen. Neben der bereits oben angesprochenen stabilen Grundplatte, die mit einer Wannenform versehen wird, in der die unterste Wärmetauscherplatte aufsitzt, können auch von außen angelegte Leisten vorgesehen werden, die sich auf der Grundplatte und um den Umfang der untersten Wärmetauscherplatte herum erstrecken.In addition, from the Japanese patent application JP 02-691155 various alternatives known, which also serve to reinforce the lowermost heat exchanger plate. In addition to the above-mentioned stable base plate, which is provided with a trough shape, in which the bottom heat exchanger plate is seated, also externally applied strips can be provided, which extend around the base plate and around the circumference of the lowermost heat exchanger plate.

Die Veröffentlichungen zeigen relativ aufwendige Möglichkeiten der Verstärkung der untersten Wärmetauscherplatte gegen Rissbildung.The publications show relatively complicated ways of strengthening the lowermost heat exchanger plate against cracking.

Aus der WO 2007/038871A1 , die Stand der Technik gemäß Art. 54 (3), EPÜ darstellt, ist ein Plattenwärmetauscher bekannt, wie er, bezüglich der Ausbildung der Befestigungsplatte, in der anhängenden Fig. 1 dargestellt ist. Die Befestigungsplatte ist zweiteilig ausgebildet. Die oben liegende Befestigungsplatte besitzt einen Ausschnitt. Der Rand des Ausschnitts ist umgeformt worden und liegt am Rand der untersten Wärmetauscherplatte an, um denselben zu verstärken.From the WO 2007 / 038871A1 , which represents state of the art in accordance with Art. 54 (3), EPC, a plate heat exchanger is known, as he, in terms of the formation of the mounting plate, in the appended Fig. 1 is shown. The mounting plate is formed in two parts. The upper mounting plate has a cutout. The edge of the cut has been reshaped and abuts the edge of the lowermost heat exchanger plate to reinforce it.

Die Aufgabe der vorliegenden Erfindung ist es, alternative und herstellungsfreundliche Lösungsvorschlage zu unterbreiten, die zu einem Wärmetauscher führen, dessen untere Wärmetauscherplatten widerstandsfähig gegen thermische und mechanische Belastungen sind.The object of the present invention is to propose alternative and production-friendly solution proposals which lead to a heat exchanger whose lower heat exchanger plates are resistant to thermal and mechanical loads.

Die Aufgabe wird bei dem Wärmetauscher erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.The object is achieved in the heat exchanger according to the invention by the features of claim 1.

Es ist eine mindestens dreiteilige Befestigungsplatte vorgesehen, wobei die unterste Wärmetauscherplatte auf einer Befestigungsplatte liegt und eine darüber angeordnete Befestigungsplatte einen Ausschnitt aufweist, dessen Rand umgeformt ist, um am wannenförmigen Rand der untersten Wärmetauscherplatte anzuliegen. Es ist weiter vorgesehen, dass der Rand des Ausschnitts einen Biegewinkel aufweist, der dem Winkel des wannenförmigen Randes entspricht. Der Winkel des wannenförmigen Randes beträgt so etwa 8 bis 15°. Der Biegewinkel des Randes des Ausschnitts überschreitet demnach 90° und liegt bei etwa 98 bis 105°. Die Umformung des Randes wird erleichtert, wenn die Ecken des Ausschnitts eingeschnitten oder ausgeschnitten werden. Die Befestigungsplatte ist dreiteilig ausgebildet. Die Gesamtdicke der Befestigungsplatte ist deshalb nicht größer als im Stand der Technik. Trotzdem ist die Dicke jedes Teils der Befestigungsplatte deutlich größer als die Dicke der Wärmetauscherplatten.It is provided at least a three-part mounting plate, wherein the lowermost heat exchanger plate is located on a mounting plate and a mounting plate arranged above has a cut, the edge is formed to abut the trough-shaped edge of the lowermost heat exchanger plate. It is further provided that the edge of the cutout has a bending angle which corresponds to the angle of the trough-shaped edge. The angle of the trough-shaped edge is about 8 to 15 °. The bending angle of the edge of the cutout therefore exceeds 90 ° and is about 98 to 105 °. The reshaping of the edge is facilitated when the corners of the cut are cut in or cut out. The mounting plate is formed in three parts. The total thickness of the mounting plate is therefore not greater than in the prior art. Nevertheless, the thickness of each part of the mounting plate is significantly larger than the thickness of the heat exchanger plates.

Die oberste Befestigungsplatte weist den Ausschnitt auf, und die darunter angeordneten Befestigungsplatten sind an den Öffnungen so ausgebildet, dass sie sich zur Aufnahme von Dichtungen eignen.The uppermost mounting plate has the cutout, and the mounting plates underneath are formed at the openings so that they are suitable for receiving seals.

Die Teile der Befestigungsplatten können Markierungen aufweisen, damit sie sich einfacher zusammenlegen lassen. Die Teile der Befestigungsplatten besitzen ferner übereinstimmende Löcher, um die Befestigung des Wärmetauschers ausführen zu können.The parts of the mounting plates may have markings to make them easier to fold. The parts of the mounting plates also have matching holes to perform the attachment of the heat exchanger can.

Die Dichtung ist zwischen einem umgebogenen Öffnungsrand der einen Befestigungsplatte und einem ebenen Öffnungsrand der anderen Befestigungsplatte eingeklemmt. Sie steht etwas unter Vorspannung und fällt im Zuge der Montage nicht aus ihrer Position heraus. Diese Maßnahmen verbessern die Montagefreundlichkeit des Wärmetauschers.The seal is clamped between a bent opening edge of the one mounting plate and a flat opening edge of the other mounting plate. It is slightly biased and does not fall out of position during assembly. These measures improve the ease of installation of the heat exchanger.

Der Ausschnitt ist vor der Durchführung der Umformung des Randes kleiner als die Grundfläche der Wärmetauscherplatte. Genauer gesagt, der Ausschnitt ist wie die Grundfläche der Wärmetauscherplatten rechteckig ausgebildet, wobei die vier Seiten des Randes des Ausschnitts parallel mit den vier Seiten der Grundfläche laufen.The cut-out is smaller than the base area of the heat exchanger plate before carrying out the deformation of the edge. More specifically, the cutout, like the base of the heat exchanger plates, is rectangular, with the four sides of the edge of the cut parallel with the four sides of the base.

Ein weiterer Vorteil der Erfindung gegenüber dem Stand der Technik ist auch, dass der Materialeinsatz reduziert wird.Another advantage of the invention over the prior art is also that the material usage is reduced.

Die Erfindung wird an Hand der Fig. 1 bis 5 beschrieben:

  • Die Fig. 1 zeigt einen Schnitt durch den unteren Bereich eines Wärmetauschers, der bezüglich der Befestigungsplatte dem vorne erwähnten Stand der Technik etwa entspricht.
  • Die Fig. 2 zeigt einen Teil-Schnitt durch einen Wärmetauscher gemäß der Erfindung.
  • Die Fig. 3 zeigt eine Draufsicht auf die Befestigungsplatte.
  • Die Fig. 4 zeigt eine Draufsicht auf den Wärmetauscher mit Befestigungsplatten.
  • Die Fig. 5 zeigt eine Ansicht auf eine Öffnung in Pfeilrichtung gemäß der Fig. 2
The invention is based on the Fig. 1 to 5 described:
  • The Fig. 1 shows a section through the lower portion of a heat exchanger, which corresponds with respect to the mounting plate to the aforementioned prior art approximately.
  • The Fig. 2 shows a partial section through a heat exchanger according to the invention.
  • The Fig. 3 shows a plan view of the mounting plate.
  • The Fig. 4 shows a plan view of the heat exchanger with mounting plates.
  • The Fig. 5 shows a view of an opening in the arrow direction according to the Fig. 2

Die Fig. 1 zeigt den unteren Bereich des Wärmetauschers, beispielsweise eines Ölkühlers 1. Er besteht aus einer Vielzahl wannenförmiger, ineinander gestapelter Wärmetauscherplatten 10. Sie liegen an ihren äußeren Rändern 11 aneinander an und bilden einen durch Löten abgedichteten Wärmetauscher. Zwischen den Wärmetauscherplatten 10 bilden sich durch die Formgebung der Wärmetauscherplatten 10 abwechselnd Strömungskanäle 5 für das eine und das andere Medium, die diesen Wärmetauscher 1 durchströmen. In den Strömungskanälen 5 können, wie hier gezeigt, Turbulenzeinlagen 6 für einen besseren Wärmeaustausch vorgesehen werden oder andere nicht gezeigte Möglichkeiten zur Turbulenzerzeugung. Die Medien können durch die Öffnungen 21 im Teil 3 der Befestigungsplatte und durch die Zu- und Abführkanäle 22 und 20 in den Wärmetauscher 1 gelangen oder aber auch durch nicht gezeigte Anschlussstutzen. (siehe Pfeile in der Fig. 1) So dass im Teil 3 der Befestigungsplatte vier Öffnungen 21 vorzusehen sind, wenn beide Medien durch die Befestigungsplatte 3 geführt werden. Es kann aber auch jeder andere Wärmetauscher der auf ähnliche Art und Weise an einem Gehäuse oder Motorblock befestigt wird, vorgesehen werden. Zur Befestigung können beispielsweise durch die Befestigungsplatten hindurchgehende Verschraubungen 30 dienen, die in der Fig. 1 angedeutet wurden.The Fig. 1 shows the lower portion of the heat exchanger, such as an oil cooler 1. It is trough-shaped from a plurality of nested heat exchanger plates 10. They are located at their outer edges 11 abut each other and form a sealed by soldering heat exchanger. Between the heat exchanger plates 10 are formed by the shape of the heat exchanger plates 10 alternately flow channels 5 for the one and the other medium, which flow through this heat exchanger 1 . In the flow channels 5 , as shown here, turbulence inserts 6 can be provided for a better heat exchange or other possibilities not shown turbulence generation. The media can pass through the openings 21 in the part 3 of the mounting plate and through the inlet and outlet channels 22 and 20 in the heat exchanger 1 or by non-illustrated connection piece. (see arrows in the Fig. 1 ) So that in the part 3 of the mounting plate four openings 21 are provided when both media are passed through the mounting plate 3 . But it can also be any other heat exchanger which is attached in a similar manner to a housing or engine block, are provided. For fastening, for example, through the mounting plates penetrating fittings 30 are used, which in the Fig. 1 were indicated.

Die Anzahl der Öffnungen 21 in der Befestigungsplatte 3 sind dann je nach Bedarf anzupassen. Auch ihre Position hängt von der Wahl des zu befestigenden Wärmetauschers ab.The number of openings 21 in the mounting plate 3 are then adjusted as needed. Their position also depends on the choice of the heat exchanger to be fastened.

Durch thermische und mechanische Belastungen der Wärmetauscher während ihres Einsatzes in einem Kraftfahrzeug entstehen immer wieder Risse am Rand 11 der untersten Wärmetauscherplatte 10. Um dies zu vermeiden wird in die Befestigungsplatte 2 bei deren Herstellung ein Ausschnitt 26 eingestanzt, daran anschließend oder gleichzeitig wird der Rand 25 des Ausschnitts 26 umgebogen. Der Rand 25 des Ausschnitts 26 wird so gebogen, dass er mit seinem Ende 27 bis etwa zur Hälfte mehr oder weniger den Rand 11 der untersten Wärmetauscherplatte 10 bedeckt und direkt an dieser anliegt. Dadurch ergibt sich ein Biegeradius für den Rand 25 von etwa 98 bis 105°, da der Rand 11 der Wärmetauscherplatten 10 um etwa 8 bis 15° nach außen, von der Vertikalen weg, gebogen ist. Durch diese Ausgestaltung der Verstärkung an der untersten Wärmetauscherplatte 10 im Bereich A werden Belastungsrisse vermieden. Gleichzeitig kann auf diese Weise der Materialverbrauch verringert werden, ohne die Belastbarkeit zu reduzieren, im Gegenteil sie wird sogar verbessert.By thermal and mechanical loads of the heat exchanger during their use in a motor vehicle cracks occur again and again on the edge 11 of the lowermost heat exchanger plate 10. To avoid this, a cutout 26 is punched into the mounting plate 2 during their production, then subsequently or simultaneously the edge 25 the cutout 26 is bent. The edge 25 of the cutout 26 is bent so that it covers with its end 27 to about half more or less the edge 11 of the lowermost heat exchanger plate 10 and bears directly against this. This results in a bending radius for the edge 25 of about 98 to 105 °, since the edge 11 of the heat exchanger plates 10 by about 8 to 15 ° outwardly, away from the vertical, is bent. This embodiment of the reinforcement on the lowermost heat exchanger plate 10 in the region A prevents stress cracks. At the same time, the material consumption can be reduced in this way without reducing the load capacity, on the contrary it is even improved.

In Fig. 2 ist die Erfindung gezeigt. Hier ist eine dreiteilige Befestigungsplatte, bestehend aus den Teilen 2, 3, 4 vorgesehen. Die Teile 2 und 3 bilden an den Öffnungen 21 Dichtungsaufnahmen wie sie beispielsweise in der vor kurzem eingereichten Patentanmeldung DE 10 2006 005 084 beschrieben sind. (Fig. 5) Um die Dichtung 41 festzuklemmen, damit sie bei der Montage des Ölkühlers 1 nicht heraus fällt, ist hier zum einen die Gestaltung der Öffnung 21 im Teil 3 der Befestigungsplatte wellenförmig ausgebildet und zum anderen hat die Öffnung 21 im Teil 2 eine besondere Form 40. Das Besondere hier ist nun die Kombination der vorteilhaften Halterung der Dichtung 41 durch die besondere Form 40 und die Verstärkung der untersten Wärmetauscherptatte 10 an ihrem Rand 11 durch den umgebogenen Rand 25 des Ausschnitts 26 des Teils 4 der Befestigungsplatte.In Fig. 2 the invention is shown. Here is a three-piece mounting plate consisting of the parts 2, 3, 4 is provided. The parts 2 and 3 form at the openings 21 seal receivers as for example in the recently filed patent application DE 10 2006 005 084 are described. ( Fig. 5 ) To clamp the seal 41 so that it does not fall out during assembly of the oil cooler 1 , the design of the opening 21 in the part 3 of the mounting plate is wavy here on the one hand and on the other hand, the opening 21 in Part 2 has a special shape 40th The special here is the combination of the advantageous retention of the seal 41 by the particular shape 40 and the reinforcement of the lowermost Wärmetauscherptatte 10 at its edge 11 by the bent edge 25 of the cutout 26 of the part 4 of the mounting plate.

Die einzelnen Teile 2, 3, 4 der Befestigungsplatte können aus gleich dicken Blechen hergestellt werden oder aus unterschiedlich dicken Blechen. Insgesamt haben alle Befestigungsplatten 2, 3, 4 zusammen im Bereich unterhalb des Wärmetauschers 1 eine geringere Dicke D als im Stand der Technik beschrieben und im restlichen Bereich B sind sie genauso dick. Allerdings sollten die Teile 2 oder 4 der Befestigungsplatte eine größere Dicke ausweisen als die üblichen Wärmetauscherplatten 10, um eine besonders vorteilhafte Verstärkung zu erhalten. Es kann auch vorteilhaft sein nach dem Umbiegen des Randes 25 der Befestigungsplatte 4 in der Biegung 28 durch Nachbearbeitung, z. B. durch Einkerbung, das Anliegen des Randes 25 des Ausschnitts 26 der Befestigungsplatte am Rand 11 der Wärmetauscherplatte 10 zu verbessern.The individual parts 2, 3, 4 of the mounting plate can be made of the same thickness sheets or of different thickness sheets. Overall, all mounting plates 2, 3, 4 together in the area below the heat exchanger 1 has a smaller thickness D than described in the prior art and in the remaining area B they are just as thick. However, the parts 2 or 4 of the mounting plate should have a greater thickness than the conventional heat exchanger plates 10 in order to obtain a particularly advantageous reinforcement. It may also be advantageous after bending the edge 25 of the mounting plate 4 in the bend 28 by reworking, z. B. by notching, the concerns of the edge 25 of the cutout 26 of the mounting plate on the edge 11 of the heat exchanger plate 10 to improve.

In der Fig. 3 ist in der Draufsicht der Teil 2 oder 4 der Befestigungsplatte gezeigt. So sieht Teil 2 oder 4 der Befestigungsplatte nach dem Ausstanzen der Ausschnitts 26 aus. Um Risse in den Ecken 52 während der Ausformung des Randes 25 der Ausschnitt 26 zu vermeiden, sind die Ecken 52 mit einem Ein - oder Eckausschnitt 50 versehen. Beim Umbiegen oder Tiefziehen des Randes 25 entsteht an den Ecken 52 ein Bereich 51 an dem kein Rand 25 des Ausschnitts 26 an dem Rand 11 der untersten Wärmetauscherplatte 10 anliegt (siehe Fig. 4). Je nach Bedarf kann aber auch auf den Ein - oder Eckausschnitt 50 verzichtet werden, dann hat man an den Ecken 52 eine geringere Materialstärke als an den Seitenrändern 53 (nicht gezeigt). Die Löcher 30 sind in allen Teilen 2, 3, 4 der Befestigungsplatte angebracht und dienen der Befestigung des fertig gelöteten Wärmetauschers 1 an einem Motorblock oder Gehäuse.In the Fig. 3 is shown in the plan view of Part 2 or 4 of the mounting plate. Part 2 or 4 of the mounting plate looks like this after the cutout 26 has been punched out. In order to avoid cracks in the corners 52 during the formation of the edge 25 of the cutout 26 , the corners 52 are provided with an entry or corner cut 50 . When bending or deep drawing of the edge 25 is formed at the corners 52, a region 51 on which no edge 25 of the cutout 26 at the edge 11 of the lowermost heat exchanger plate 10 is applied (see Fig. 4 ). However, depending on requirements, it is also possible to dispense with the single or corner cutout 50 , then a lower material thickness at the corners 52 than at the side edges 53 (not shown). The holes 30 are mounted in all parts 2, 3, 4 of the mounting plate and are used to attach the finished brazed heat exchanger 1 to a motor block or housing.

Alle Teile 2, 3, 4 der Befestigungsplatte weisen Markierungen auf um die Montage zu erleichtern.All parts 2, 3, 4 of the mounting plate have markings to facilitate installation.

Claims (5)

  1. Heat exchanger, in particular oil cooler (1), consisting of heat exchanger plates (10) which are stacked in one another with a trough-shaped edge (11) and with flow ducts (5) which lie in between for heat exchanging media,
    with feed and discharge ducts (20, 22),
    and with a three-piece fastening plate (2, 3, 4) with coinciding holes (30) for fastening the heat exchanger in all three fastening plates (2, 3, 4),
    the lowermost heat exchanger plate (10) lying on a first fastening plate (2) which has openings (21) for the feed and discharge of the media,
    a second fastening plate (4) which is arranged above having a cut-out (26), the edge (25) of which is reshaped, in order to bear against the trough-shaped edge (11) of the lowermost heat exchanger plate (10),
    a third fastening plate (3) being arranged below the first fastening plate (2) and also having the openings (21) and the holes (30), the first and the third fastening plate (2, 3) being configured at the openings (21) for receiving seals (41).
  2. Heat exchanger according to Claim 1, characterized in that the edge (25) of the cut-out (26) has a bend angle which corresponds to the angle of the trough-shaped edge (11).
  3. Heat exchanger according to Claims 1 and 2, characterized in that the edge (25) of the cut-out (26) in the fastening plate (2 or 3) is cut in or out at the corners (52).
  4. Heat exchanger according to Claims 1 to 3, characterized in that the seal (41) is clamped in between a bent-over opening edge of one fastening plate and a planar opening edge of the other fastening plate.
  5. Heat exchanger according to one of the preceding claims, characterized in that the cut-out (26) in the fastening plate (3 or 4) is smaller than the base area of the heat exchanger plate (10) before the reshaping of the edge (25) is carried out.
EP07006495.1A 2006-05-13 2007-03-29 Heat exchanger, in particular oil cooler Active EP1855074B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006022445A DE102006022445A1 (en) 2006-05-13 2006-05-13 Heat exchangers, in particular oil coolers

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EP1855074A2 EP1855074A2 (en) 2007-11-14
EP1855074A3 EP1855074A3 (en) 2010-04-21
EP1855074B1 true EP1855074B1 (en) 2015-08-19

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US (1) US20070289724A1 (en)
EP (1) EP1855074B1 (en)
DE (1) DE102006022445A1 (en)

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CA2624672C (en) * 2005-10-05 2014-02-18 Dana Canada Corporation Reinforcement for dish plate heat exchangers
DE102008029959A1 (en) * 2008-06-26 2009-12-31 Behr Gmbh & Co. Kg Stacked plate heat exchanger for a motor vehicle
AT508537B1 (en) * 2009-07-16 2011-04-15 Mahle Int Gmbh PLATE HEAT EXCHANGERS WITH MULTIPLE STACKED PLATES
DE102010001828A1 (en) * 2010-02-11 2011-08-11 Behr GmbH & Co. KG, 70469 Stacking arrangement, particularly stack disk oil cooler, has stack of disks, particularly hear-carrying disks, where stack is supported by base plate
DE102010063141A1 (en) * 2010-12-15 2012-06-21 Mahle International Gmbh heat exchangers
DE202011002197U1 (en) * 2011-02-01 2012-02-02 Dana Gmbh heat exchangers
DE102011080829A1 (en) * 2011-08-11 2013-02-14 Mahle International Gmbh Plate heat exchanger
DE102011080828A1 (en) 2011-08-11 2013-02-14 Mahle International Gmbh Plate heat exchanger
DE102011080824A1 (en) * 2011-08-11 2013-02-14 Mahle International Gmbh Plate heat exchanger
SE537142C2 (en) * 2012-02-14 2015-02-17 Alfa Laval Corp Ab Flat heat exchanger with improved strength in the door area
JP6196820B2 (en) * 2013-06-20 2017-09-13 株式会社マーレ フィルターシステムズ Oil cooler
DE102014212942A1 (en) * 2014-07-03 2016-01-07 Mahle International Gmbh The stacked-plate cooler
DE102016002621A1 (en) * 2016-03-07 2017-09-07 Modine Manufacturing Company Multifunctional base plate of a heat exchanger
CN105910475B (en) * 2016-05-30 2018-03-27 江阴市亚龙换热设备有限公司 Plate type heat exchanger bottom plate
SE541905C2 (en) * 2017-12-05 2020-01-02 Swep Int Ab Heat exchanger and method for forming heat exchanger plates
EP3598049B1 (en) * 2018-07-19 2022-08-10 Valeo Termico S.A. Reinforced heat exchanger comprising a stack of plates

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WO2007038871A1 (en) * 2005-10-05 2007-04-12 Dana Canada Corporation Reinforcement for dish plate heat exchangers

Also Published As

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EP1855074A2 (en) 2007-11-14
DE102006022445A1 (en) 2007-11-15
US20070289724A1 (en) 2007-12-20
EP1855074A3 (en) 2010-04-21

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