EP3198207B1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
EP3198207B1
EP3198207B1 EP15760456.2A EP15760456A EP3198207B1 EP 3198207 B1 EP3198207 B1 EP 3198207B1 EP 15760456 A EP15760456 A EP 15760456A EP 3198207 B1 EP3198207 B1 EP 3198207B1
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EP
European Patent Office
Prior art keywords
longitudinal end
heat transfer
transfer device
central section
side part
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Not-in-force
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EP15760456.2A
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German (de)
French (fr)
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EP3198207A1 (en
Inventor
Harald Bronner
Markus Hübsch
Peter Griessheimer
Jens Ruckwied
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Mahle International GmbH
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Mahle International GmbH
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Publication of EP3198207A1 publication Critical patent/EP3198207A1/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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • the present invention relates to a heat exchanger, in particular a charge air cooler or a coolant radiator, according to the preamble of claim 1.
  • a heat exchanger is known from EP 0 102 715 .
  • the invention also relates to a side part for such a heat exchanger.
  • Heat exchangers usually consist of a multiplicity of pipes, in particular flat pipes with or without turbulence inserts, two floors and usually two side parts to which collecting tanks are arranged to complete a collector.
  • the side parts used for this purpose are usually one-piece and usually made by a stamping or embossing process. To reduce thermally induced stresses these side parts are also either provided with local expansion sections or divided mechanically into at least two parts in a subsequent manufacturing step joining.
  • a heat exchanger for transferring heat between a gaseous first fluid and a liquid second fluid having a plurality of tubes, which pass through a first fluid path for guiding the first fluids extend.
  • the tubes are coupled in a heat-transmitting manner to cooling fins arranged in the first fluid path and through which the first fluid can flow, and form a second fluid path for guiding the second fluid on the inside.
  • the radiator block formed by the tubes and corresponding bottoms each have a side part for lateral delimitation of the first fluid path on two outer sides facing away from one another in the stacking direction.
  • An increased stability of the radiator block should result from the fact that the two side parts are firmly connected to each other via at least one tie rod, which is a separate component with respect to the cooling fins and the tubes and allows a tensile force transmission in the stacking direction.
  • One-piece side parts for example formed as a sheet metal stamping side parts are designed over the entire length with identical wall thickness, which may result in an unnecessarily high material usage in areas where high strength or bending stiffness is not required. This is the case in particular in a middle region, whereas in a longitudinal end region of the respective side parts an increased flexural rigidity is required.
  • a stiffening therefore has to be carried out either over the entire length or the stiffening is only carried out locally and thereby leads in the non-stiffened area to an increased material waste.
  • the present invention therefore deals with the problem of providing for a heat exchanger of the generic type an improved or at least one alternative embodiment, which is characterized in particular by a lighter weight and less material use in the region of the side parts.
  • the present invention is based on the general idea to form a lateral part of the lateral boundary of a radiator block of a heat exchanger with respect to its flexural rigidity of at least two segment parts with different cross-sectional shape, which meet the respective bending stiffness requirements required there.
  • the heat exchanger according to the invention which may be formed, for example, as a coolant radiator or as a charge air cooler, has in a classical manner two floors, each having passages for the longitudinal end receiving fluid-carrying pipes.
  • the floors are completed laterally by side parts, which are at least partially taken up with a longitudinal end region in an end-side passage of the respective soil.
  • the side parts can also be soldered or welded to the bottoms on the longitudinal end side and not be received in the passages.
  • the side part now has at least two separate segment parts with a different cross-sectional shape, wherein the different cross-sectional shape at the same time also causes a different bending stiffness.
  • the two end-side segment parts can be made the same and the central part has a different shape. This makes it possible to form the longitudinal end regions of the respective side part (longitudinal end segments) more rigid than a center section (middle part) arranged, for example, between the two longitudinal end regions, so that the higher bending stiffness required in the longitudinal end region is easily met, but material and thus also weight are saved in the middle section can.
  • the heat exchanger according to the invention and a side part according to the invention it is thus possible, with minimal use of material, a sufficiently high rigidity, in particular bending stiffness, in the area near the ground, ie in the area of the soil, to achieve.
  • the longitudinal end region of the side part is provided in the region near the bottom with a cross section with a higher bending stiffness, while the center section arranged therebetween has a bending-softer cross-section and / or a smaller material thickness.
  • the middle section can, of course, also be completely dispensed with, so that in this case a zero cross-section would be present.
  • the middle section is designed as a sheet metal strip.
  • the longitudinal end portions of the respective side part may for example have a U-shaped, a U-shaped, an L-shaped, a W-shaped or a one or more chambers having tubular cross-section.
  • the longitudinal end sections thus formed have a significantly higher flexural rigidity than, for example, the middle section formed as a sheet-metal strip.
  • Such shaped longitudinal end portions can thus easily ablate the forces occurring in this area, whereas the middle portion can not only save material, but also also be easily formed, since in this area no high rigidity or strength is required.
  • a longitudinal end portion and the middle portion are materially connected to each other, for example, welded together, glued or soldered.
  • a gap is provided between the middle section and a longitudinal section so that they do not touch one another. In this case, the gap would provide for the compensation of temperature-induced strains.
  • the present invention is further based on the general idea to form a side part for a heat exchanger described above from at least two segment parts with different cross-sectional shape and bending stiffness, whereby the different bending stiffness requirements in a central region and in the respective longitudinal end regions of the side part can be optimally taken into account.
  • the cross-sectional shape used in the longitudinal end region in this case has a high flexural rigidity, whereas the middle section has a lower weight due to the flexurally softer design and / or the smaller material thickness and at the same time helps conserve resources.
  • the thus designed side part is lighter overall, which is particularly in use in a heat exchanger of a motor vehicle of great advantage, but satisfies all Biegesteiftechniksan Kunststoffen. Another decisive advantage is lower costs with variation of the length of the side part, since only the middle section has to be changed.
  • a heat exchanger 1 which may be formed, for example, as intercooler, two floors 2, the respective passages 3 for longitudinal end receiving fluid-carrying pipes 4, for example, flat tubes possess.
  • the bottoms 2 are connected to manifolds 5 to form a collector, for example, for coolant.
  • the two side parts 6 are accommodated with a respective longitudinal end region 7 at least partially in an end-side passage 8 of the associated bottom 2, wherein the end-side passage 8 is formed identical to the provided for the tubes 4 passages 3.
  • the side parts 6 can be completely or partially pushed through the passages 8, but they do not have to. Alternatively, they can of course also be connected to the bottoms 2 in other ways, for example by soldering, welding, etc.
  • the invention proposes that the side part 6 has at least two different segment parts 9, 10 with different cross-sectional shape and thus different bending stiffness.
  • side part 6 has this a total of three segment parts 9, 10, namely two identical longitudinal end segments 13 and an intermediate middle section 14 arranged therebetween.
  • the middle section 14 has a lower bending stiffness and / or a smaller material thickness than the longitudinal end segments 13 and therefore can be particularly material-saving and lightweight become.
  • the center section 14 can be designed, for example, as a sheet metal strip that is simple and inexpensive to produce, whereas the longitudinal end segments 13 have, for example, a W-shaped cross section (cf. Fig. 2 and 5 ), a U-shaped cross section (see. Fig. 3 ), a U-wedge-shaped cross section (see. Fig. 4 ) or a one or more chambers 15 having tubular cross-section may have (see 6 and 7 ). All shown longitudinal end segments 13 is common that they have a comparatively high bending moment due to their cross-sectional shape alone.
  • At least one longitudinal end segment 13 and the middle section 14 are materially bonded together, for example, welded or soldered together, or that between the center section 14 and a longitudinal end section 13, a gap 16 is provided so that they do not touch.
  • the individual segment parts 9, 10 can also be arranged both overlapping and butting. However, if the two segment parts 9, Do not touch 10 and the gap 16 between two segment parts 9, 10 is greater than 0.5 mm.
  • a blunt shock with gap 16 is in the side panels 6 according to the Fig. 2 to 7 whereas, according to the Fig. 8 the longitudinal end segment 13 has a first contour 11 and the center section 14 has a second contour 12 formed complementary thereto.
  • the longitudinal end segments 13 of the side part 6 are provided in the direction of the center section 14 with a curved or arrow-shaped shape (compare left and right illustration according to FIGS Fig. 8 ), whereby it can be ensured that each rib bow can be connected to the side part 6.
  • heat exchangers 1 with different tube lengths and identical longitudinal end segments 13 of the side parts 6 can be realized, which are only combined with differently long middle sections 14 depending on the tube length.
  • the complex parts of the side part 6, i. the longitudinal end segments 13 and the segment parts 10 are always implemented with the same tool cost and high quality.
  • the simple design of the center portion 14 of the material used can be minimized, in an extreme case even on the center portion 14, i. the segment part 9, can be dispensed with entirely. Due to the complex shaped longitudinal end segments 13, a high support of the tubes 4 in the ground-level region of the bottom 2 is still guaranteed.

Description

Die vorliegende Erfindung betrifft einen Wärmeübertrager, insbesondere einen Ladeluftkühler oder einen Kühlmittelkühler, gemäß dem Oberbegriff des Anspruchs 1. Solch ein Wärmeübertrager ist bekannt aus EP 0 102 715 . Die Erfindung betrifft außerdem ein Seitenteil für einen solchen Wärmeübertrager.The present invention relates to a heat exchanger, in particular a charge air cooler or a coolant radiator, according to the preamble of claim 1. Such a heat exchanger is known from EP 0 102 715 , The invention also relates to a side part for such a heat exchanger.

Wärmeübertrager bestehen üblicherweise aus einer Vielzahl von Rohren, insbesondere Flachrohren mit oder ohne Turbulenzeinlagen, zwei Böden sowie üblicherweise zwei Seitenteilen, an welchen Sammelkästen zur Komplettierung eines Sammlers angeordnet sind. Die hierfür eingesetzten Seitenteile sind üblicherweise einstückig und meistens durch einen Stanz- oder Prägeprozess gefertigt. Zur Reduzierung von thermisch bedingten Spannungen werden diese Seitenteile zudem entweder mit lokalen Dehnungsabschnitten versehen oder in einem dem Fügen nachfolgenden Fertigungsschritt mechanisch in zumindest zwei Teile unterteilt. Ein Wärmeübertrager mit jeweils eine Dehnsicke aufweisenden Seitenteilen ist beispielsweise aus der DE 197 53 408 a1 bekannt.Heat exchangers usually consist of a multiplicity of pipes, in particular flat pipes with or without turbulence inserts, two floors and usually two side parts to which collecting tanks are arranged to complete a collector. The side parts used for this purpose are usually one-piece and usually made by a stamping or embossing process. To reduce thermally induced stresses these side parts are also either provided with local expansion sections or divided mechanically into at least two parts in a subsequent manufacturing step joining. A heat exchanger, each with a Dehnsicke having side parts, for example, from DE 197 53 408 a1 known.

Aus der EP 0 748 995 B1 ist ein gattungsgemäßer Wärmeübertrager mit zwei Böden bekannt, die jeweils Durchzüge zur längsendseitigen Aufnahme von fluidführenden Rohren besitzen. Ebenfalls vorgesehen sind Seitenteile, die jeweils mit einem Längsendbereich zumindest teilweise in einem endseitigen Durchzug des jeweiligen Bodens aufgenommen sind. Auch diese Seitenteile weisen zur Kompensation von thermischen Spannungen Dehnsicken auf.From the EP 0 748 995 B1 a generic heat exchanger with two floors is known, each having passages to the longitudinal end receiving fluid-carrying pipes. Also provided are side parts, which are each received at least partially in a end-side passage of the respective bottom with a longitudinal end region. These side parts also have expansion beads to compensate for thermal stresses.

Aus der DE 10 2012 223 644 A1 ist ein Wärmeübertrager zur Wärmeübertragung zwischen einem gasförmigen ersten Fluid und einem flüssigen zweiten Fluid mit mehreren Rohren bekannt, die sich durch einen ersten Fluidpfad zum Führen des ersten Fluides erstrecken. Die Rohre sind mit in dem ersten Fluidpfad angeordneten, vom ersten Fluid durchströmbaren Kühlrippen wärmeübertragend gekoppelt und bilden innen einen zweiten Fluidpfad zum Führen des zweiten Fluides. Der durch die Rohre und entsprechende Böden gebildete Kühlerblock weist zur seitlichen Begrenzung des ersten Fluidpfades an zwei in der Stapelrichtung voneinander abgewandten Außenseiten jeweils ein Seitenteil auf. Eine erhöhte Stabilität des Kühlerblocks soll sich dabei daraus ergeben, dass die beiden Seitenteile über wenigstens einen Zuganker fest miteinander verbunden sind, der bezüglich der Kühlrippen und der Rohre ein separates Bauteil ist und der eine Zugkraftübertragung in der Stapelrichtung ermöglicht.From the DE 10 2012 223 644 A1 For example, a heat exchanger is known for transferring heat between a gaseous first fluid and a liquid second fluid having a plurality of tubes, which pass through a first fluid path for guiding the first fluids extend. The tubes are coupled in a heat-transmitting manner to cooling fins arranged in the first fluid path and through which the first fluid can flow, and form a second fluid path for guiding the second fluid on the inside. The radiator block formed by the tubes and corresponding bottoms each have a side part for lateral delimitation of the first fluid path on two outer sides facing away from one another in the stacking direction. An increased stability of the radiator block should result from the fact that the two side parts are firmly connected to each other via at least one tie rod, which is a separate component with respect to the cooling fins and the tubes and allows a tensile force transmission in the stacking direction.

Generell gilt für die Herstellung von Wärmeübertrager nach dem Stand der Technik, dass für Seitenteile unterschiedlicher Länge stets neue Werkzeuge benötigt und angeschafft werden müssen. Einteilige Seitenteile, beispielsweise als Blechstanzteil ausgebildete Seitenteile, sind über die gesamte Länge mit identischer Wanddicke ausgeführt, wodurch sich unter Umständen ein unnötig hoher Materialeinsatz in Bereichen ergibt, in welchen eine hohe Festigkeit bzw. Biegesteifigkeit nicht erforderlich ist. Dies ist insbesondere in einem mittleren Bereich der Fall, wogegen in einem Längsendbereich der jeweiligen Seitenteile eine erhöhte Biegesteifigkeit erforderlich ist. Bei einem einstückigen Seitenteil muss somit eine Versteifung entweder über die gesamte Länge ausgeführt werden oder die Versteifung ist nur lokal ausgeführt und führt dadurch im nicht versteiften Bereich zu einem erhöhten Materialverschnitt.Generally applies to the production of heat exchangers according to the prior art that for side parts of different lengths always new tools needed and must be purchased. One-piece side parts, for example formed as a sheet metal stamping side parts are designed over the entire length with identical wall thickness, which may result in an unnecessarily high material usage in areas where high strength or bending stiffness is not required. This is the case in particular in a middle region, whereas in a longitudinal end region of the respective side parts an increased flexural rigidity is required. In the case of a one-piece side part, a stiffening therefore has to be carried out either over the entire length or the stiffening is only carried out locally and thereby leads in the non-stiffened area to an increased material waste.

Die vorliegende Erfindung beschäftigt sich daher mit dem Problem, für einen Wärmeübertrager der gattungsgemäßen Art eine verbesserte oder zumindest eine alternative Ausführungsform anzugeben, die sich insbesondere durch ein leichteres Gewicht und weniger Materialeinsatz im Bereich der Seitenteile auszeichnet.The present invention therefore deals with the problem of providing for a heat exchanger of the generic type an improved or at least one alternative embodiment, which is characterized in particular by a lighter weight and less material use in the region of the side parts.

Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matters of the independent claims. Advantageous embodiments are the subject of the dependent claims.

Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, ein Seitenteil zur seitlichen Begrenzung eines Kühlerblocks eines Wärmeübertragers hinsichtlich seiner Biegesteifigkeit aus zumindest zwei Segmentteilen mit unterschiedlicher Querschnittsform auszubilden, die den jeweils dort erforderlichen Biegesteifigkeitsanforderungen gerecht werden. Der erfindungsgemäße Wärmeübertrager, der beispielsweise als Kühlmittelkühler oder als Ladeluftkühler ausgebildet sein kann, besitzt dabei in klassischer Weise zwei Böden, die jeweils Durchzüge zur längsendseitigen Aufnahme von fluidführenden Rohren besitzen. Seitlich abgeschlossen werden die Böden durch Seitenteile, die jeweils mit einem Längsendbereich zumindest teilweise in einem endseitigen Durchzug des jeweiligen Bodens aufgenommen sind. Alternativ können die Seitenteile längsendseitig auch mit den Böden verlötet oder verschweißt und dabei nicht in den Durchzügen aufgenommen sein. Erfindungsgemäß weist nun das Seitenteil zumindest zwei voneinander getrennte Segmentteile mit unterschiedlicher Querschnittsform auf, wobei die unterschiedliche Querschnittsform zugleich auch eine unterschiedliche Biegesteifigkeit bewirkt. Bei einer Ausführung mit drei voneinander getrennten Segmentteilen ergibt sich der besondere Vorteil, dass die beiden endseitigen Segmentteile gleich ausgeführt werden können und das Mittenteil eine andere Form aufweist. Hierdurch ist es möglich, die Längsendbereiche des jeweiligen Seitenteils (Längsendsegmente) biegesteifer auszubilden als einen beispielsweise zwischen den beiden Längsendbereichen angeordneten Mittenabschnitt (Mittenteil), so dass die im Längsendbereich geforderte höhere Biegesteifigkeit problemlos erfüllt wird, im Mittenabschnitt jedoch Material und damit auch Gewicht eingespart werden kann. Mit dem erfindungsgemäßen Wärmeübertrager und einem erfindungsgemäßen Seitenteil ist es somit möglich, mit minimalem Materialeinsatz eine ausreichend hohe Steifigkeit, insbesondere Biegesteifigkeit, im bodennahen Bereich, d.h. im Bereich des Bodens, zu erzielen. Der Längsendbereich des Seitenteils wird dabei im bodennahen Bereich mit einem Querschnitt mit höherer Biegesteifigkeit versehen, während der dazwischen angeordnete Mittenabschnitt einen biegeweicheren Querschnitt und/oder eine geringere Materialdicke aufweist. Rein theoretisch kann auf den Mittenabschnitt selbstverständlich auch ganz verzichtet werden, so dass in diesem Fall ein Nullquerschnitt vorliegen würde.The present invention is based on the general idea to form a lateral part of the lateral boundary of a radiator block of a heat exchanger with respect to its flexural rigidity of at least two segment parts with different cross-sectional shape, which meet the respective bending stiffness requirements required there. The heat exchanger according to the invention, which may be formed, for example, as a coolant radiator or as a charge air cooler, has in a classical manner two floors, each having passages for the longitudinal end receiving fluid-carrying pipes. The floors are completed laterally by side parts, which are at least partially taken up with a longitudinal end region in an end-side passage of the respective soil. Alternatively, the side parts can also be soldered or welded to the bottoms on the longitudinal end side and not be received in the passages. According to the invention, the side part now has at least two separate segment parts with a different cross-sectional shape, wherein the different cross-sectional shape at the same time also causes a different bending stiffness. In an embodiment with three separate segment parts, there is the particular advantage that the two end-side segment parts can be made the same and the central part has a different shape. This makes it possible to form the longitudinal end regions of the respective side part (longitudinal end segments) more rigid than a center section (middle part) arranged, for example, between the two longitudinal end regions, so that the higher bending stiffness required in the longitudinal end region is easily met, but material and thus also weight are saved in the middle section can. With the heat exchanger according to the invention and a side part according to the invention it is thus possible, with minimal use of material, a sufficiently high rigidity, in particular bending stiffness, in the area near the ground, ie in the area of the soil, to achieve. The longitudinal end region of the side part is provided in the region near the bottom with a cross section with a higher bending stiffness, while the center section arranged therebetween has a bending-softer cross-section and / or a smaller material thickness. Theoretically, the middle section can, of course, also be completely dispensed with, so that in this case a zero cross-section would be present.

Zweckmäßig ist der Mittenabschnitt als Blechstreifen ausgebildet. Dies bietet die einfache und zugleich kostengünstige Möglichkeit, den Blechstreifen wirtschaftlich und fertigungstechnisch einfach herzustellen. Die Längsendabschnitte des jeweiligen Seitenteils können beispielsweise einen U-förmigen, einen U-keilförmigen, einen L-förmigen, einen W-förmigen oder einen eine oder mehrere Kammern aufweisenden rohrförmigen Querschnitt besitzen. Bereits diese nicht abschließende Aufzählung lässt erahnen, dass die derart geformten Längsendabschnitte eine deutlich höhere Biegesteifigkeit aufweisen als beispielsweise der als Blechstreifen ausgebildete Mittenabschnitt. Derartig geformte Längsendabschnitte können somit die in diesem Bereich auftretenden Kräfte problemlos abtragen, wogegen der Mittenabschnitt nicht nur materialsparend, sondern zudem auch leicht ausgebildet werden kann, da in diesem Bereich keine hohe Steifigkeit bzw. Festigkeit erforderlich ist.Suitably, the middle section is designed as a sheet metal strip. This offers the simple and at the same time cost-effective way to produce the sheet metal strip economically and manufacturing technology. The longitudinal end portions of the respective side part may for example have a U-shaped, a U-shaped, an L-shaped, a W-shaped or a one or more chambers having tubular cross-section. Already this non-exhaustive list suggests that the longitudinal end sections thus formed have a significantly higher flexural rigidity than, for example, the middle section formed as a sheet-metal strip. Such shaped longitudinal end portions can thus easily ablate the forces occurring in this area, whereas the middle portion can not only save material, but also also be easily formed, since in this area no high rigidity or strength is required.

Gemäß einer vorteilhaften Weiterbildung sind ein Längsendabschnitt und der Mittenabschnitt stoffschlüssig miteinander verbunden, beispielsweise miteinander verschweißt, verklebt oder verlötet. Hierdurch ist es möglich, ein einteiliges Seitenteil aus mehreren Teilsegmenten (Segmentteilen) mit unterschiedlichen Querschnitten zusammenzusetzen und im zusammengesetzten Zustand vergleichsweise einfach handzuhaben. Alternativ kann auch vorgesehen sein, dass zwischen dem Mittenabschnitt und einem Längsabschnitt ein Spalt vorgesehen ist, so dass sich diese nicht berühren. In diesem Fall würde der Spalt für die Kompensation von temperaturbedingten Dehnungen sorgen.According to an advantageous development, a longitudinal end portion and the middle portion are materially connected to each other, for example, welded together, glued or soldered. This makes it possible to assemble a one-piece side part of a plurality of sub-segments (segment parts) with different cross-sections and to handle comparatively easily in the assembled state. Alternatively, it can also be provided that a gap is provided between the middle section and a longitudinal section so that they do not touch one another. In this case, the gap would provide for the compensation of temperature-induced strains.

Die vorliegende Erfindung beruht weiter auf dem allgemeinen Gedanken, ein Seitenteil für einen zuvor beschriebenen Wärmeübertrager aus zumindest zwei Segmentteilen mit unterschiedlicher Querschnittsform und Biegesteifigkeit auszubilden, wodurch den unterschiedlichen Biegesteifigkeitsanforderungen in einem Mittenbereich und in den jeweiligen Längsendbereichen des Seitenteils optimal Rechnung getragen werden kann. Die im Längsendbereich verwendete Querschnittsform weist dabei eine hohe Biegesteifigkeit auf, wogegen der Mittenabschnitt aufgrund der biegeweicheren Ausbildung und/oder der geringeren Materialdicke ein geringeres Gewicht aufweist und zugleich Ressourcenschonung beiträgt. Das so konzipierte Seitenteil ist insgesamt leichter, was insbesondere auch bei der Verwendung in einem Wärmeübertrager eines Kraftfahrzeugs von großem Vorteil ist, genügt jedoch sämtlichen Biegesteifigkeitsanforderungen. Ein weiterer entscheidender Vorteil sind geringere Kosten bei Variation der Länge des Seitenteils, da lediglich der Mittenabschnitt geändert werden muss.The present invention is further based on the general idea to form a side part for a heat exchanger described above from at least two segment parts with different cross-sectional shape and bending stiffness, whereby the different bending stiffness requirements in a central region and in the respective longitudinal end regions of the side part can be optimally taken into account. The cross-sectional shape used in the longitudinal end region in this case has a high flexural rigidity, whereas the middle section has a lower weight due to the flexurally softer design and / or the smaller material thickness and at the same time helps conserve resources. The thus designed side part is lighter overall, which is particularly in use in a heat exchanger of a motor vehicle of great advantage, but satisfies all Biegesteifigkeitsanforderungen. Another decisive advantage is lower costs with variation of the length of the side part, since only the middle section has to be changed.

Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.

Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Komponenten beziehen.Preferred embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.

Es zeigen, jeweils schematisch,

Fig. 1
eine Schnittdarstellung durch einen erfindungsgemäßen Wärmeübertrager,
Fig. 2
ein erfindungsgemäßes Seitenteil mit einem Mittenabschnitt und zwei Längsendsegmenten,
Fig.
3-7 jeweils eine Ansicht auf ein Seitenteil mit Mittenabschnitt und dazu unterschiedlichem Längsendsegment,
Fig. 8
eine Ansicht auf ein Seitenteil mit einem Längsendsegment mit einer ersten Kontur und einem Mittenabschnitt mit einer komplementär dazu ausgebildeten zweiten Kontur.
Show, in each case schematically,
Fig. 1
a sectional view through a heat exchanger according to the invention,
Fig. 2
an inventive side part with a middle section and two longitudinal end segments,
FIG.
3-7 are each a view of a side part with center section and a different longitudinal end segment,
Fig. 8
a view of a side part with a longitudinal end segment having a first contour and a central portion with a complementary thereto formed second contour.

Entsprechend der Fig. 1, weist ein erfindungsgemäßer Wärmeübertrager 1, der beispielsweise als Ladeluftkühler ausgebildet sein kann, zwei Böden 2 auf, die jeweils Durchzüge 3 zur längsendseitigen Aufnahme von fluidführenden Rohren 4, beispielsweise Flachrohren, besitzen. Die Böden 2 sind dabei mit Sammelkästen 5 zur Bildung eines Sammlers, beispielsweise für Kühlmittel, verbunden. Die beiden Seitenteile 6 sind dabei mit einem jeweiligen Längsendbereich 7 zumindest teilweise in einem endseitigen Durchzug 8 des zugehörigen Bodens 2 aufgenommen, wobei der endseitige Durchzug 8 identisch mit den für die Rohre 4 vorgesehenen Durchzüge 3 ausgebildet ist. Die Seitenteile 6 können durch die Durchzüge 8 ganz oder teilweise durchgesteckt werden, müssen dies aber nicht. Sie können alternativ auch selbstverständlich mit den Böden 2 auf andere Weise verbunden werden, beispielsweise durch Anlöten, Anschweißen, etc..According to the Fig. 1 , has a heat exchanger 1 according to the invention, which may be formed, for example, as intercooler, two floors 2, the respective passages 3 for longitudinal end receiving fluid-carrying pipes 4, for example, flat tubes possess. The bottoms 2 are connected to manifolds 5 to form a collector, for example, for coolant. The two side parts 6 are accommodated with a respective longitudinal end region 7 at least partially in an end-side passage 8 of the associated bottom 2, wherein the end-side passage 8 is formed identical to the provided for the tubes 4 passages 3. The side parts 6 can be completely or partially pushed through the passages 8, but they do not have to. Alternatively, they can of course also be connected to the bottoms 2 in other ways, for example by soldering, welding, etc.

Um nun ein Seitenteil 6 verwirklichen zu können, welches einerseits die im Längsendbereich 7 auftretenden höheren Biegesteifigkeitsanforderungen erfüllt, ansonsten aber mit minimalem Materialeinsatz hergestellt werden kann, schlägt die Erfindung vor, dass das Seitenteil 6 zumindest zwei unterschiedliche Segmentteile 9, 10 mit unterschiedlicher Querschnittsform und damit unterschiedlicher Biegesteifigkeit aufweist. Bei dem gemäß der Fig. 2 dargestellten Seitenteil 6 besitzt dieses insgesamt drei Segmentteile 9, 10, nämlich zwei identische Längsendsegmente 13 und einen dazwischen angeordneten Mittenabschnitt 14. Der Mittenabschnitt 14 besitzt dabei eine geringere Biegesteifigkeit und/oder eine geringere Materialdicke als die Längsendsegmente 13 und kann deshalb besonders materialsparend und leicht ausgebildet werden. Die Längsendsegmente 13 hingegen besitzen nicht nur eine unterschiedliche Querschnittsform, die eine hohe Biegesteifigkeit ermöglicht, sondern unter Umständen auch eine größere Materialdicke, die ebenfalls zu einer erhöhten Biegesteifigkeit beiträgt.In order now to be able to realize a side part 6, which on the one hand fulfills the higher bending stiffness requirements occurring in the longitudinal end region 7, but otherwise can be produced with minimal use of materials, the invention proposes that the side part 6 has at least two different segment parts 9, 10 with different cross-sectional shape and thus different bending stiffness. In accordance with the Fig. 2 shown side part 6 has this a total of three segment parts 9, 10, namely two identical longitudinal end segments 13 and an intermediate middle section 14 arranged therebetween. The middle section 14 has a lower bending stiffness and / or a smaller material thickness than the longitudinal end segments 13 and therefore can be particularly material-saving and lightweight become. The longitudinal end segments 13, however, not only have a different cross-sectional shape, which allows a high bending stiffness, but may also have a greater material thickness, which also contributes to increased flexural rigidity.

Der Mittenabschnitt 14 kann beispielsweise als einfach und kostengünstig zu fertigender Blechstreifen ausgebildet sein, wogegen die Längsendsegmente 13 beispielsweise einen W-förmigen Querschnitt (vgl. Fig. 2 und 5), einen U-förmigen Querschnitt (vgl. Fig. 3), einen U-keil-förmigen Querschnitt (vgl. Fig. 4) oder einen eine oder mehrere Kammern 15 aufweisenden rohrförmigen Querschnitt aufweisen können (vgl. die Fig. 6 und 7). Sämtlichen gezeigten Längsendsegmenten 13 ist dabei gemein, dass diese allein aufgrund ihrer Querschnittsform ein vergleichsweise hohes Biegesteifigkeitsmoment aufweisen.The center section 14 can be designed, for example, as a sheet metal strip that is simple and inexpensive to produce, whereas the longitudinal end segments 13 have, for example, a W-shaped cross section (cf. Fig. 2 and 5 ), a U-shaped cross section (see. Fig. 3 ), a U-wedge-shaped cross section (see. Fig. 4 ) or a one or more chambers 15 having tubular cross-section may have (see 6 and 7 ). All shown longitudinal end segments 13 is common that they have a comparatively high bending moment due to their cross-sectional shape alone.

Denkbar ist darüber hinaus, dass zumindest ein Längsendsegment 13 und der Mittenabschnitt 14 stoffschlüssig miteinander verbunden sind, beispielsweise miteinander verschweißt oder verlötet, oder dass zwischen dem Mittenabschnitt 14 und einem Längsendabschnitt 13 ein Spalt 16 vorgesehen ist, so dass sich diese nicht berühren. Rein theoretisch können selbstverständlich die einzelnen Segmentteile 9, 10 auch sowohl überlappend als auch stumpf stoßend angeordnet werden. Besonders vorteilhaft ist jedoch, sofern sich die beiden Segmentteile 9, 10 nicht berühren und der Spalt 16 zwischen zwei Segmentteilen 9, 10 größer als 0,5 mm ist. Ein stumpfer Stoß mit Spalt 16 ist dabei bei den Seitenteilen 6 gemäß den Fig. 2 bis 7 dargestellt, wogegen gemäß der Fig. 8 das Längsendsegment 13 eine erste Kontur 11 und der Mittenabschnitt 14 eine komplementär dazu ausgebildete zweite Kontur 12 aufweist. In diesem Fall sind somit die Längsendsegmente 13 des Seitenteils 6 in Richtung des Mittenabschnitts 14 mit gewölbter oder pfeilförmiger Formgebung versehen (vgl. linke und rechte Darstellung gemäß der Fig. 8), wodurch gewährleistet werden kann, dass jeder Rippenbogen mit dem Seitenteil 6 verbunden werden kann.It is conceivable, moreover, that at least one longitudinal end segment 13 and the middle section 14 are materially bonded together, for example, welded or soldered together, or that between the center section 14 and a longitudinal end section 13, a gap 16 is provided so that they do not touch. Theoretically, of course, the individual segment parts 9, 10 can also be arranged both overlapping and butting. However, if the two segment parts 9, Do not touch 10 and the gap 16 between two segment parts 9, 10 is greater than 0.5 mm. A blunt shock with gap 16 is in the side panels 6 according to the Fig. 2 to 7 whereas, according to the Fig. 8 the longitudinal end segment 13 has a first contour 11 and the center section 14 has a second contour 12 formed complementary thereto. In this case, therefore, the longitudinal end segments 13 of the side part 6 are provided in the direction of the center section 14 with a curved or arrow-shaped shape (compare left and right illustration according to FIGS Fig. 8 ), whereby it can be ensured that each rib bow can be connected to the side part 6.

Mit dem erfindungsgemäßen Seitenteil 6 bzw. mit dem erfindungsgemäßen Wärmeübertrager 1 können Wärmeübertrager 1 mit unterschiedlicher Rohrlänge und identischen Längsendsegmenten 13 der Seitenteile 6 realisiert werden, die je nach Rohrlänge lediglich mit unterschiedlich langen Mittenabschnitten 14 kombiniert werden. Auf diesem Weg können die komplexen Teile des Seitenteils 6, d.h. die Längsendsegmente 13 bzw. die Segmentteile 10, stets mit demselben Werkzeug kostengünstig und qualitativ hochwertig umgesetzt werden. Außerdem kann durch die simple Gestaltung des Mittenabschnitts 14 der Materialeinsatz minimiert werden, wobei im Extremfall sogar auf den Mittenabschnitt 14, d.h. das Segmentteil 9, gänzlich verzichtet werden kann. Durch die komplex ausgeformten Längsendsegmente 13 wird trotzdem noch eine hohe Abstützung der Rohre 4 im bodennahen Bereich des Bodens 2 gewährleistet.With the side part 6 according to the invention or with the heat exchanger 1 according to the invention, heat exchangers 1 with different tube lengths and identical longitudinal end segments 13 of the side parts 6 can be realized, which are only combined with differently long middle sections 14 depending on the tube length. In this way, the complex parts of the side part 6, i. the longitudinal end segments 13 and the segment parts 10, are always implemented with the same tool cost and high quality. In addition, the simple design of the center portion 14 of the material used can be minimized, in an extreme case even on the center portion 14, i. the segment part 9, can be dispensed with entirely. Due to the complex shaped longitudinal end segments 13, a high support of the tubes 4 in the ground-level region of the bottom 2 is still guaranteed.

Claims (10)

  1. Heat transfer device (1), in particular a charge air cooler or a coolant cooler,
    - comprising two bases (2), each of which has passages (3) for accommodating fluid-carrying pipes (4) at the longitudinal end,
    - comprising at least one side part (6) which has at least two segment parts (9, 10) with a different cross-sectional shape,
    characterised in that the side part (6) comprising a longitudinal end region (7) is at least partially accommodated in a passage (8) at an end of the associated base (2).
  2. Heat transfer device according to claim 1,
    characterised in that the side part (6) has two, in particular identical, longitudinal end segments (13) and a central section (14) arranged between them.
  3. Heat transfer device according to claim 2,
    characterised in that the central section (14) has a lower material thickness and/or a lower bending stiffness than the longitudinal end segments (13).
  4. Heat transfer device according to claim 2 or 3,
    characterised in that the central section (14) is formed as a sheet metal strip.
  5. Heat transfer device according to claim 2, 3 or 4,
    characterised in that the longitudinal end segments (13) have a U-shaped, U-wedge-shaped, L-shaped, W-shaped or a tubular cross-section having one or more chambers (15).
  6. Heat transfer device according to any of claims 2 to 5,
    characterised in that a gap (16) is provided between the central section (14) and a longitudinal end segment (13), so that they do not touch.
  7. Heat transfer device according to any of claims 2 to 6,
    characterised in that a longitudinal end segment (13) and the central section (14) are materially bonded to one another, in particular soldered, at least in certain regions.
  8. Heat transfer device according to any of claims 2 to 6,
    characterised in that at least one longitudinal end segment (13) and the central section (14) are at least partially connected to each other in a positive-locking manner.
  9. Heat transfer device according to claim 8,
    characterised in that at least one longitudinal end segment (13) and the central section (14) are at least partially clipped together.
  10. Heat transfer device according to any of claims 2 to 7,
    characterised in that at least one longitudinal end segment (13) has a first contour (11) and the central section (14) has a second contour (12) formed so as to be complementary to the first contour.
EP15760456.2A 2014-09-22 2015-09-09 Heat exchanger Not-in-force EP3198207B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014219080 2014-09-22
DE102014219209.9A DE102014219209A1 (en) 2014-09-22 2014-09-23 Heat exchanger
PCT/EP2015/070601 WO2016045969A1 (en) 2014-09-22 2015-09-09 Heat exchanger

Publications (2)

Publication Number Publication Date
EP3198207A1 EP3198207A1 (en) 2017-08-02
EP3198207B1 true EP3198207B1 (en) 2018-07-25

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ID=55444698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15760456.2A Not-in-force EP3198207B1 (en) 2014-09-22 2015-09-09 Heat exchanger

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US (1) US20170307298A1 (en)
EP (1) EP3198207B1 (en)
JP (1) JP2017534040A (en)
CN (1) CN106687759A (en)
BR (1) BR112017004394A2 (en)
DE (1) DE102014219209A1 (en)
WO (1) WO2016045969A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10429133B2 (en) * 2016-08-04 2019-10-01 Hanon Systems Heat exchanger element with thermal expansion feature

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FR2224727B1 (en) * 1973-04-04 1975-08-22 Chausson Usines Sa
EP0102715A3 (en) * 1982-09-03 1984-08-01 Unipart Group Limited Improvements relating to heat exchangers
US4619313A (en) * 1984-10-12 1986-10-28 Touchstone Railway Supply & Mfg. Co., Inc. Radiator frame unit
GB2303437A (en) 1995-06-12 1997-02-19 Ford Motor Co Stress relief in heat exchangers
DE19753408B4 (en) 1997-12-02 2005-08-18 Behr Gmbh & Co. Kg Heat exchanger for a motor vehicle
DE102007052888A1 (en) * 2007-11-02 2009-05-07 Behr Gmbh & Co. Kg Heat transfer radiator, for motor vehicle air conditioning, has assembled water tanks with flat tubes and stiffened side sections soldered at the narrow sides of the unit
US9212836B2 (en) * 2008-01-02 2015-12-15 Johnson Controls Technology Company Heat exchanger
US20090294111A1 (en) * 2008-05-28 2009-12-03 Steve Larouche Heat exchanger
CA2632382A1 (en) * 2008-05-28 2009-11-28 Steve Larouche Heat exchanger
DE102008045225A1 (en) * 2008-08-30 2010-03-04 Modine Manufacturing Co., Racine Heat exchanger i.e. cooling fluid cooler, for use in commercial vehicle, has side parts arranged at sides of cooling network and fastened to wave-like ribs by adhesive joint, where ends of side parts extend into recesses of collecting boxes
CN102313480A (en) * 2010-07-01 2012-01-11 上海双桦汽车零部件股份有限公司 Reinforcing structure on two sides of laminated evaporator of automotive air-conditioner
FR2977932A1 (en) * 2011-07-12 2013-01-18 Valeo Systemes Thermiques COLLECTOR BOX, HEAT EXCHANGER AND CORRESPONDING ASSEMBLY METHOD
GB2507495B (en) * 2012-10-30 2018-07-25 Denso Marston Ltd A heat exchanger assembly
DE102012223644A1 (en) 2012-12-18 2014-06-18 Behr Gmbh & Co. Kg heat exchangers

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Publication number Publication date
DE102014219209A1 (en) 2016-03-24
BR112017004394A2 (en) 2017-12-05
EP3198207A1 (en) 2017-08-02
CN106687759A (en) 2017-05-17
US20170307298A1 (en) 2017-10-26
WO2016045969A1 (en) 2016-03-31
JP2017534040A (en) 2017-11-16

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