EP2467665A1 - Heat exchanger - Google Patents

Heat exchanger

Info

Publication number
EP2467665A1
EP2467665A1 EP10740630A EP10740630A EP2467665A1 EP 2467665 A1 EP2467665 A1 EP 2467665A1 EP 10740630 A EP10740630 A EP 10740630A EP 10740630 A EP10740630 A EP 10740630A EP 2467665 A1 EP2467665 A1 EP 2467665A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
lid
caulking
longitudinal direction
board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10740630A
Other languages
German (de)
French (fr)
Other versions
EP2467665B1 (en
Inventor
Stefan Hirsch
Kurt Molt
Uwe FÖRSTER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP2467665A1 publication Critical patent/EP2467665A1/en
Application granted granted Critical
Publication of EP2467665B1 publication Critical patent/EP2467665B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • 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
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49389—Header or manifold making

Definitions

  • the invention relates to a heat exchanger, in particular gas cooler, having at least one longitudinally extending collecting box, which comprises a bottom and a lid and at least two in cross-section substantially circular longitudinal channels, which by at least one of the bottom and / or lid formed
  • the longitudinal partition wall are at least partially spaced from each other, wherein the bottom of at least one of its longitudinally extending edge regions has a shelf with which the bottom overlaps a longitudinally extending edge region of the lid outside or wherein the lid on at least one of its longitudinally extending edge regions Board has, with which the lid engages over a longitudinal edge region of the bottom outside.
  • a collection box in which the board is formed by separated lobes. Again, the board is bent or folded after applying the lid to the ground to fix both parts together. However, the joining forces between the bottom and the lid are low due to material stripping and elastic deformation of the board.
  • the present invention has for its object to provide a heat exchanger, which builds simple and expedient in a safe joining and is inexpensive to produce.
  • a heat exchanger in which the respective board in the longitudinal direction has a plurality of caulking, by which it is deformed in the region of each individual caulking in the direction of the Sammelkastehmitte and determines the bottom and the lid against each other.
  • the lid and base are stamped from a sheet metal blank and each have in cross-section substantially a w-shape or ⁇ -shape. Due to this shape, the bottom and lid touch in their outer areas and in their centers, whereby the longitudinal partition wall is formed.
  • the two opposite shelves can be angled outwardly in the areas in which they have no caulking. However, it is preferred that the two shelves in the areas in where they have no caulking, run parallel to each other. It is particularly advantageous that a powerful joining of lid and bottom is achieved with low material usage by the large number of caulking.
  • the plurality of caulking is arranged symmetrically with respect to the collection box center.
  • the combination of cover and bottom has a symmetrical force curve, which increases the quality of the joint.
  • two adjacent caulkings in the longitudinal direction equal to ⁇ or differing widths.
  • the caulkings arranged in the longitudinal direction have the same or different distance from one another. In areas of the collecting tank, where due to the expected load, a greater addition of the header tank is required, this can be easily ensured by increasing the width of the caulking or by the number of caulking within the relevant area.
  • the geometry of the individual caulking is basically arbitrary. Shares, angled or round versions are possible.
  • a single caulking has a width of 0.5-6 mm, in particular 0.75-5 mm, in particular 1-4 mm. As a result, a punctual caulking is achieved, whereby the force required for producing the caulking is reduced.
  • one or more caulking forms a receptacle for at least one connecting piece, in particular flange or holder.
  • the connecting piece in particular flange or holder, For example, it can be hooked into the caulking.
  • the connection piece is clamped by the caulking.
  • the bottom and the lid are soldered together.
  • the heat exchanger can withstand high pressures, and be used, for example, in a CO2 refrigerant cycle.
  • the heat exchanger has a multiplicity of flat tubes forming a Wäimeübertragungsf, wherein the flat tubes tube ends and the bottom of the number of flat tubes has corresponding openings for receiving the tube ends.
  • the shelf of the floor is higher than the outer edge of the lid or the board of the lid is higher than the outer edge of the floor.
  • the board of the bottom engages behind the lid in the area of caulking or the board, the lid of the lid in the area of caulking.
  • the height of the shelf of the floor over the. Edge of the lid or the height of the shelf of the lid over the edge of the bottom 0.5 - 4 mm, in particular 0.75 - 3 mm, in particular 1 - 2.5 mm, in particular 1-1.5 mm.
  • an embodiment according to the invention is preferred in which the caulkings in the corner regions form a positioning device in the longitudinal direction for the collecting box.
  • Figure 1 is a perspective view of a header tank of a heat exchanger according to the invention.
  • Figure 2 is a side view of the collection box of Figure 1;
  • Figure 3 is a plan view of the collection box of Figure 1;
  • Figure 4 is a sectional view taken along the section l-l of Figure 3;
  • FIG. 5 shows a sectional view along the section H-II according to FIG. 3,
  • the figures show an assembly of a total provided with the reference numeral 2 heat exchanger, in particular gas cooler.
  • the heat exchanger 2 comprises a collecting box 6 which is extended in a longitudinal direction 4 and is formed from a base 8 and a cover 10.
  • the base 8 and cover 10 are stamped from a sheet metal blank and have a w- or ⁇ -shaped cross section Lids 10 touch each other in their edge regions 12 and in their centers and form there an at least almost closed longitudinal partition wall 14 for longitudinal channels 16 extended in the longitudinal direction 4 (FIGS. 4 and 5).
  • the bottom 8 at its longitudinally 4 extending edge regions 12, a shelf 18 which engages over the lid 10 outside.
  • the board 18 has a plurality of caulking 20, on which the board 18 of the bottom 8 is deformed in the direction of the center of the collecting tank 6 and at the De- disgust 10 is applied, whereby the lid 10 and the bottom 8 are fixed against each other.
  • Figures 1, 2 and 3 show the collection box 6 from different views.
  • the ribs 18 are parallel to each other and are higher than the outer edge 22 of the lid 10, the caulking 20 are applied to the outer edge 22 of the lid 10, so that the bottom 8 engages behind the lid 10 in the caulking 20 perpendicular to the longitudinal direction 4 ,
  • the caulking 20 are arranged symmetrically to the center of the collecting tank 6 and have substantially the same width.
  • the caulking 20 have a geometry that has predominantly straight and angled portions.
  • a fitting 24 is connected to the collecting box 6 via a receptacle 26 formed by one of the caulking 20.
  • the distance between two adjacent in the longitudinal direction 4 caulking 20 is less than in areas where no connection piece 24 is received.
  • On the side facing away from the shelves 18 of the bottom 8 openings 28 are arranged, in which a plurality of heat transfer surface forming flat tubes (not shown) can be inserted with their tube ends,
  • the bottom 8 and the lid 1Q are punched from a sheet metal blank and are w- or ⁇ -shaped embossed.
  • To join both parts of the lid 10 is disposed within the bottom 8 and 12 overlapped by this at its edge 12 from outside through the shelves 18.
  • the cover 10 and the bottom 8 touch each other in their middle and thereby form the longitudinal separation. wall 14, which spaced the two longitudinal channels 16 from each other.
  • bottom 8 and Decket 10 are pressed together and put together.
  • the shelf 18 of the bottom ⁇ is higher than the outer edge 22 of the top 10 and extends in the areas where there is no caulking 20 parallel to the opposite board 18. In this way, the caulking 20 engages behind the lid 10 and presses it against the ground 8.
  • FIG. 5 shows a section along the line INI according to FIG. 3, in which a connecting piece 24 is arranged at the level of a caulking 20 formed as a receptacle 26.
  • the connector 24 rests on the one hand on the outer edge 22 of the lid 10 and is clamped by the caulking 20 since «lent so that it is fixed to the collecting box 6.

Landscapes

  • 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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

The invention relates to a heat exchanger (2), in particular gas cooler, having at least one collecting tank (6) which extends in a longitudinal direction (4) and which comprises a plate (8) and a cover (10), wherein the plate (8) has, at at least one of its edge regions (12) running in the longitudinal direction (4), a rim (18) by means of which the plate (8) engages at the outside over an edge region (12), which runs in the longitudinal direction (4), of the cover (10), or wherein the cover (10) has, at at least one of its edge regions (12) running in the longitudinal direction (4), a rim (18) by means of which the cover (10) engages at the outside over an edge region, which runs in the longitudinal direction (4), of the plate (8). Said heat exchanger is characterized in that the respective rim (18) has, in the longitudinal direction (4), a multiplicity of calked portions (20) by means of which said rim, in the region of each individual calked portion (20), is deformed in the direction of the collecting tank centre and fixes the plate (8) and the cover (10) to one another.

Description

Wärmeübertrager  Heat exchanger
Die Erfindung betrifft einen Wärmeübertrager, insbesondere Gaskühler, mit mindestens einem in einer Längsrichtung erstreckten Sammelkasten, der einen Boden und einen Deckel umfasst sowie mindestens zwei im Querschnitt im Wesentlichen kreisförmige Längskanäle aufweist, die durch min- destens eine vom Boden und/oder vom Deckel gebildete Längstrennwand voneinander zumindest abschnittsweise beabstandet sind, wobei der Boden an mindestens einem seiner in Längsrichtung verlaufenden Randbereiche ein Bord aufweist, mit dem der Boden einen in Längsrichtung verlaufenden Randbereich des Deckels außen übergreift oder wobei der Deckel an min- destens einem seiner in Längsrichtung verlaufenden Randbereiche ein Bord aufweist, mit dem der Deckel einen in Längsrichtung verlaufenden Randbereich des Bodens außen übergreift. The invention relates to a heat exchanger, in particular gas cooler, having at least one longitudinally extending collecting box, which comprises a bottom and a lid and at least two in cross-section substantially circular longitudinal channels, which by at least one of the bottom and / or lid formed The longitudinal partition wall are at least partially spaced from each other, wherein the bottom of at least one of its longitudinally extending edge regions has a shelf with which the bottom overlaps a longitudinally extending edge region of the lid outside or wherein the lid on at least one of its longitudinally extending edge regions Board has, with which the lid engages over a longitudinal edge region of the bottom outside.
Aus WO 2004/088234 A2 ist efn gattungsgemäßer Wärmetauscher bekannt, bei dem das Bord durch eine durchgehende Lasche gebildet ist. Das Bord wird nach Anlegen des Deckels an den Boden gebogen oder gefaltet, um beide Teile vor einem Lötprozess aneinander festzulegen. Dies erfordert je doch einen hohen Materialbedarf und hohe Kräfte für das Biegen oder Falten, wobei die Fügekräfte, die nach dem Biegen oder Falten zwischen Boden und Deckel vorherrschen, aufgrund elastischer Verformung des Bords gering sind. From WO 2004/088234 A2 efn generic heat exchanger is known in which the board is formed by a continuous tab. The board is bent or folded to the ground after application of the lid to fix both parts together before a soldering process. However, this requires ever a high material requirements and high forces for bending or folding, wherein the joining forces that prevail after bending or folding between the bottom and lid, due to elastic deformation of the board are low.
Aus DE 10 2006 053 702 A1 ist ein Sammelkasten bekannt, bei dem das Bord durch vereinzelte Lappen gebildet ist. Auch hier wird das Bord nach dem Anlegen des Deckels an den Boden gebogen oder gefaltet, um beide Teile aneinander festzulegen. Die Fügekräfte zwischen Boden und Deckel sind jedoch aufgrund von Materialabstreckungen und elastischer Verformung des Bords gering. Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Wärmeübertrager vorzuschlagen, der bei einer sicheren Fügung einfach und zweckmäßig baut sowie kostengünstig herstellbar ist. From DE 10 2006 053 702 A1, a collection box is known, in which the board is formed by separated lobes. Again, the board is bent or folded after applying the lid to the ground to fix both parts together. However, the joining forces between the bottom and the lid are low due to material stripping and elastic deformation of the board. The present invention has for its object to provide a heat exchanger, which builds simple and expedient in a safe joining and is inexpensive to produce.
Die Aufgabe wird durch einen erfindungsgemäßen Wärmeübertrager gelöst, bei dem das jeweilige Bord in Längsrichtung eine Vielzahl von Verstemmun- gen aufweist, durch die es im Bereich jeder einzelnen Verstemmung in Richtung auf die Sammelkastehmitte verformt ist und den Boden und den Deckel gegeneinander festlegt. Bevorzugt sind Deckel und Boden aus einer Blech- platine geprägt und weisen jeweils im Querschnitt im Wesentlichen eine w- Form oder α - Form auf. Aufgrund dieser Form berühren sich Boden und Deckel in ihren Außenbereichen und in ihren Mitten, wodurch die Längstrennwand gebildet ist. The object is achieved by a heat exchanger according to the invention, in which the respective board in the longitudinal direction has a plurality of caulking, by which it is deformed in the region of each individual caulking in the direction of the Sammelkastehmitte and determines the bottom and the lid against each other. Preferably, the lid and base are stamped from a sheet metal blank and each have in cross-section substantially a w-shape or α-shape. Due to this shape, the bottom and lid touch in their outer areas and in their centers, whereby the longitudinal partition wall is formed.
Die beiden gegenüberliegenden Borde können in den Bereichen, in dienen sie keine Verstemmung aufweisen, grundsätzlich nach außen abgewinkelt sein. Bevorzugt wird allerdings, dass die beiden Borde in den Bereichen, in denen sie keine Verstemmung aufweisen, parallel zueinander verlaufen. Von besonderem Vorteil ist, dass durch die Vielzahl von Verstemmungen eine kraftvolle Fügung von Deckel und Boden bei geringem Materialeinsatz erreicht wird. The two opposite shelves can be angled outwardly in the areas in which they have no caulking. However, it is preferred that the two shelves in the areas in where they have no caulking, run parallel to each other. It is particularly advantageous that a powerful joining of lid and bottom is achieved with low material usage by the large number of caulking.
Es erweist sich als vorteilhaft, wenn die Vielzahl an Verstemmungen symmetrisch bezüglich der Sammelkastenmitte angeordnet ist. Hierdurch weist die Fügung von Deckel und Boden einen symmetrischen Kraftverlauf auf, was die Güte der Fügung erhöht. It proves to be advantageous if the plurality of caulking is arranged symmetrically with respect to the collection box center. As a result, the combination of cover and bottom has a symmetrical force curve, which increases the quality of the joint.
In Weiterbildung der Erfindung weisen zwei in Längsrichtung benachbarte Verstemmungen gleich© oder voneinander abweichende Breiten auf. Darüber hinaus erweist es sich als vorteilhaft., wenn die in Längsrichtung angeordneten Verstemmungen einen gleichen oder voneinander abweichen- den Abstand zueinander aufweisen. In Bereichen des Sammelkastens, in denen aufgrund der zu erwartenden Belastung eine stärkere Fügung des Sammelkastens erforderlich ist, kann dies durch Erhöhen der Breite der Verstemmung oder durch die Anzahl der Verstemmungen innerhalb des relevanten Bereichs einfach gewährleistet werden. Die Geometrie der einzelnen Verstemmungen Ist hierbei grundsätzlich beliebig. Es sind gerade Anteile, winklige oder runde Ausführungen möglich. In a further development of the invention, two adjacent caulkings in the longitudinal direction equal to © or differing widths. In addition, it proves to be advantageous if the caulkings arranged in the longitudinal direction have the same or different distance from one another. In areas of the collecting tank, where due to the expected load, a greater addition of the header tank is required, this can be easily ensured by increasing the width of the caulking or by the number of caulking within the relevant area. The geometry of the individual caulking is basically arbitrary. Shares, angled or round versions are possible.
Ferner erweist es sich als vorteilhaft, wenn eine einzelne Verstemmung eine Breite von 0,5 - 6 mm, insbesondere 0,75 - 5 mm, insbesondere 1 - 4 mm beträgt. Hierdurch wird eine punktuelle Verstemmungen erreicht, wobei die hierfür erforderliche Kraft zum Hersteilen der Verstemmung reduziert ist. Furthermore, it proves to be advantageous if a single caulking has a width of 0.5-6 mm, in particular 0.75-5 mm, in particular 1-4 mm. As a result, a punctual caulking is achieved, whereby the force required for producing the caulking is reduced.
In Weiterbildung der Erfindung bildet eine oder bilden mehrere Verstemmungen eine Aufnahme für mindestens ein Anschlussstück, insbesondere Flansch oder Halter. Das Anschlussstück, insbesondere Flansch oder Halter, kann beispielsweise in .die Verstemmung eingehakt sein. Bevorzugt wird jedoch, dass das Anschlussstück durch die Verstemmung geklemmt wird. In a further development of the invention, one or more caulking forms a receptacle for at least one connecting piece, in particular flange or holder. The connecting piece, in particular flange or holder, For example, it can be hooked into the caulking. However, it is preferred that the connection piece is clamped by the caulking.
Vorteilhafterweise sind der Boden und der Deckel miteinander verlötet. Hier- durch kann der Wärmeübertrager hohen Drücken standhalten, und beispielsweise in einem CO2 -Kältemittelkreislauf Einsatz finden. Advantageously, the bottom and the lid are soldered together. As a result, the heat exchanger can withstand high pressures, and be used, for example, in a CO2 refrigerant cycle.
Ferner ist in Weiterbildung der Erfindung vorgesehen, dass der Wärmeübertrager eine Vielzahl von eine Wäimeübertragungsf lache bildenden Flach roh- ren aufweist, wobei die Flachrohre Rohrenden und der Boden der Anzahl der Flachrohre entsprechende Öffnungen zur Aufnahme der Röhrenden aufweist. Furthermore, it is provided in a development of the invention that the heat exchanger has a multiplicity of flat tubes forming a Wäimeübertragungsf, wherein the flat tubes tube ends and the bottom of the number of flat tubes has corresponding openings for receiving the tube ends.
Es erweist sich als Vorteilhaft, wenn das Bord des Bodens höher ist als die äußere Kante des Deckels oder das Bord des Deckels höher ist als die äußere Kante des Bodens. Das Bord des Bodens hintergreift den Deckel im Bereich einer Verstemmung bzw. das Bord, des Deckels den Boden im Bereich einer Verstemmung. Solchenfalls wird bevorzugt, wenn die Höhe des Bords des Bodens über die. Kante des Deckels oder die Höhe des Bords des Deckels über die Kante des Bodens 0,5 - 4 mm, insbesondere 0,75 - 3 mm, insbesondere 1 - 2,5 mm, insbesondere 1 - 1,5 mm aufweist. It proves to be advantageous if the shelf of the floor is higher than the outer edge of the lid or the board of the lid is higher than the outer edge of the floor. The board of the bottom engages behind the lid in the area of caulking or the board, the lid of the lid in the area of caulking. In such a case, it is preferable if the height of the shelf of the floor over the. Edge of the lid or the height of the shelf of the lid over the edge of the bottom 0.5 - 4 mm, in particular 0.75 - 3 mm, in particular 1 - 2.5 mm, in particular 1-1.5 mm.
Schließlich wird ein erfindungsgemäßes Ausführungsbeispiel bevorzugt, bei dem die Verstemmungen in den Eckbereichen eine Positionierungseinrich- tung in Längsrichtung für den Sammelkasten bilden. Finally, an embodiment according to the invention is preferred in which the caulkings in the corner regions form a positioning device in the longitudinal direction for the collecting box.
Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus den beigefügten Patentansprüchen und der zeichnerischen Darstellung und nachfolgenden Beschreibung einer bevorzugten Ausführungsform der Erfindung. In der Zeichnung zeigen: Further features, details and advantages of the invention will become apparent from the appended claims and the drawings and following description of a preferred embodiment of the invention. In the drawing show:
Figur 1 eine perspektivische Darstellung eines Sammelkastens eines erfindungsgemäßen Wärmeübertragers; Figure 1 is a perspective view of a header tank of a heat exchanger according to the invention;
Figur 2 eine Seitenansicht auf den Sammelkasten gemäß Figur 1 ; Figure 2 is a side view of the collection box of Figure 1;
Figur 3 eine Draufsicht auf den Sammelkasten gemäß Figur 1 ; Figure 3 is a plan view of the collection box of Figure 1;
Figur 4 eine Schnittansicht entlang des Schnitts l-l gemäß Figur 3; Figure 4 is a sectional view taken along the section l-l of Figure 3;
Figur 5 eine Schnittansicht entlang des Schnitts H-Il gemäß Figur 3, FIG. 5 shows a sectional view along the section H-II according to FIG. 3,
Die Figuren zeigen eine Baugruppe eines insgesamt mit dem Bezugszeichen 2 versehenen Wärmeübertragers, insbesondere Gaskühler. Der Wärmeübertrager 2 umfasst einen in einer Längsrichtung 4 erstreckten Sammelkasten 6, der aus einem Boden 8 und einem Deckel 10 gebildet ist, Boden 8 und Deckel 10 sind aus einer Blechplatine geprägt und haben einen w- oder ω-förmigen Querschnitt Der Boden 8 und der Deckel 10 berühren einander in ihren Randbereichen 12 und in ihren Mitten und bilden dort eine zumindest nahezu geschlossene Längstrennwand 14 für in Längsrichtung 4 erstreckte Längskanäle 16 (Figuren 4 und 5). The figures show an assembly of a total provided with the reference numeral 2 heat exchanger, in particular gas cooler. The heat exchanger 2 comprises a collecting box 6 which is extended in a longitudinal direction 4 and is formed from a base 8 and a cover 10. The base 8 and cover 10 are stamped from a sheet metal blank and have a w- or ω-shaped cross section Lids 10 touch each other in their edge regions 12 and in their centers and form there an at least almost closed longitudinal partition wall 14 for longitudinal channels 16 extended in the longitudinal direction 4 (FIGS. 4 and 5).
Bei dem in den Figuren dargestellten Ausführungsbeispiel weist der Boden 8 an seinen in Längsrichtung 4 erstreckten Randbereichen 12 ein Bord 18 auf, das den Deckel 10 außen übergreift. In Längsrichtung 4 weist das Bord 18 eine Vielzahl an Verstemmungen 20 auf, an denen das Bord 18 des Bodens 8 in Richtung auf die Mitte des Sammelkastens 6 verformt ist und am De- ekel 10 anliegt, wodurch der Deckel 10 und der Boden 8 gegeneinander festgelegt werden. In the embodiment shown in the figures, the bottom 8 at its longitudinally 4 extending edge regions 12, a shelf 18 which engages over the lid 10 outside. In the longitudinal direction 4, the board 18 has a plurality of caulking 20, on which the board 18 of the bottom 8 is deformed in the direction of the center of the collecting tank 6 and at the De- disgust 10 is applied, whereby the lid 10 and the bottom 8 are fixed against each other.
Die Figuren 1, 2 und 3 zeigen den Sammelkasten 6 aus verschiedenen An- sichten. Die Borde 18 verlaufen parallel zueinander und sind höher als die äußere Kante 22 des Deckels 10, Die Verstemmungen 20 liegen an der äußeren Kante 22 der Deckels 10 an, so dass der Boden 8 den Deckel 10 im Bereich der Verstemmungen 20 senkrecht zur Längsrichtung 4 hintergreift. Die Verstemmungen 20 sind symmetrisch zur Mitte des Sammelkastens 6 angeordnet und weisen im Wesentlichen gleiche Breite auf. Die Verstemmungen 20 haben eine Geometrie, die überwiegend gerade und winklige Anteile aufweist. Figures 1, 2 and 3 show the collection box 6 from different views. The ribs 18 are parallel to each other and are higher than the outer edge 22 of the lid 10, the caulking 20 are applied to the outer edge 22 of the lid 10, so that the bottom 8 engages behind the lid 10 in the caulking 20 perpendicular to the longitudinal direction 4 , The caulking 20 are arranged symmetrically to the center of the collecting tank 6 and have substantially the same width. The caulking 20 have a geometry that has predominantly straight and angled portions.
Bei dem dargestellten Ausführungsbeispiel ist ein Anschlussstück 24 mit dem Sammelkasten 6 über eine durch eine der Verstemmungen 20 gebildete Aufnahme 26 verbunden. Hierzu ist der Abstand zweier in Längsrichtung 4 benachbarter Verstemmungen 20 geringer als in Bereichen, in denen kein Anschlussstück 24 aufgenommen wird. Auf der den Borden 18 abgewandten Seite des Bodens 8 sind Öffnungen 28 angeordnet, in die eine Vielzahl an eine Wärmeübertragungsfläche bildenden Flachrohren (nicht dargestellt) mit ihren Rohrenden einsteckbar sind, In the illustrated embodiment, a fitting 24 is connected to the collecting box 6 via a receptacle 26 formed by one of the caulking 20. For this purpose, the distance between two adjacent in the longitudinal direction 4 caulking 20 is less than in areas where no connection piece 24 is received. On the side facing away from the shelves 18 of the bottom 8 openings 28 are arranged, in which a plurality of heat transfer surface forming flat tubes (not shown) can be inserted with their tube ends,
Anhand der Figuren 4 und 5 wird nachfolgend das Fügen des Wärmeübert- ragers 2 erfäutert. The joining of the heat exchanger 2 will be explained below with reference to FIGS. 4 and 5.
Der Boden 8 und der Deckel 1Q werden aus einer Blechplatine gestanzt und werden w- oder ω-förmig geprägt. Zum Fügen beider Teile wird der Deckel 10 innerhalb des Bodens 8 angeordnet und von diesem an seinen Randbe- reichen 12 von außen durch die Borde 18 übergriffen. Deckel 10 und Boden 8 berühren sich jeweils in ihrer Mitte und bilden hierdurch die Längstrenn- wand 14, die die beiden Längskanäle 16 voneinander beabstandet. Beim Einbringen der Verstemmungen 20 in das Bord 18, werden Boden 8 und Decket 10 aneinander gedrückt und zusammengefügt. Bei dem gezeigten Ausführungsbeispiel ist das Bord 18 des Bodens θ höher als die äußere Kante 22 des Deckeis 10 und verläuft in den Bereichen, in denen es keine Verstemmung 20 aufweist parallel zum gegenüberliegenden Bord 18. Hierdurch hintergreift die Verstemmung 20 den Deckel 10 und drückt ihn gegen den Boden 8. The bottom 8 and the lid 1Q are punched from a sheet metal blank and are w- or ω-shaped embossed. To join both parts of the lid 10 is disposed within the bottom 8 and 12 overlapped by this at its edge 12 from outside through the shelves 18. The cover 10 and the bottom 8 touch each other in their middle and thereby form the longitudinal separation. wall 14, which spaced the two longitudinal channels 16 from each other. When introducing the caulking 20 in the board 18, bottom 8 and Decket 10 are pressed together and put together. In the embodiment shown, the shelf 18 of the bottom θ is higher than the outer edge 22 of the top 10 and extends in the areas where there is no caulking 20 parallel to the opposite board 18. In this way, the caulking 20 engages behind the lid 10 and presses it against the ground 8.
Figur 5 zeigt einen Schnitt entlang der Linie INI gemäß Figur 3 bei der auf Höhe einer als Aufnahme 26 ausgebildeter Verstemmung 20 ein Anschlussstück 24 angeordnet ist. Das Anschlussstück 24 liegt einerseits an der äußeren Kante 22 des Deckels 10 an und wird durch die Verstemmungen 20 seit« lieh geklemmt so dass es am Sammelkasten 6 festgelegt ist. FIG. 5 shows a section along the line INI according to FIG. 3, in which a connecting piece 24 is arranged at the level of a caulking 20 formed as a receptacle 26. The connector 24 rests on the one hand on the outer edge 22 of the lid 10 and is clamped by the caulking 20 since «lent so that it is fixed to the collecting box 6.
Durch die Verstemmungen 20 wird eine prozesssichere Fügung des Sammelkastens 6 inklusive Anschlusstücke 24 erzielt. By caulking 20 a process-reliable joining of the collecting tank 6 including fittings 24 is achieved.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Wärmeübertrager (2), insbesondere Gaskühler, mit mindestens einem in einer Längsrichtung (4) erstreckten Sammelkasten (6), der einen Boden (8) und einen Deckel (10) umfasst, wobei der Boden (8) an mindestens einem setner in Längsrichtung (4) verlaufenden Randbereiche (12) ein Bord (18) aufweist, mit dem der Boden (8) einen in Längsrichtung (4) verlaufenden Randbereich (12) des Deckels (10) außen übergreift oder wobei der Deckel (10) an mindestens einem seiner in Längsrichtung (4) verlaufenden Randbereiche (12) ein Bord (18) aufweist, mit dem der Decket (10) einen in Längsrichtung (4) verlaufenden Randbereich des Bodens (8) außen übergreift, dadurch gekennzeichnet, dass das jeweilige Bord (18) in Längsrichtung (4) eine Vielzahl von Verstemmungen (20) aufweist, durch die es im Bereich jeder einzelnen Verstemmung (20) in Richtung auf die Sammel- kastenmitte verformt ist und den Boden (8) und den Deckel (10) gegeneinander festlegt. 1. Heat exchanger (2), in particular gas cooler, with at least one in a longitudinal direction (4) extending collecting tank (6) comprising a bottom (8) and a lid (10), wherein the bottom (8) at least one setner in Longitudinal (4) extending edge regions (12) has a shelf (18) with which the bottom (8) in the longitudinal direction (4) extending edge region (12) of the lid (10) engages over the outside or wherein the cover (10) at least one of its longitudinally extending (4) edge regions (12) has a shelf (18) with which the Decket (10) extends in the longitudinal direction (4) extending edge region of the bottom (8) outside, characterized in that the respective board ( 18) in the longitudinal direction (4) has a plurality of caulking (20), by which it is deformed in the region of each individual caulking (20) in the direction of the collecting box center and determines the bottom (8) and the lid (10) against each other ,
2. Wärmeübertrager (2) nach Anspruch 1, dadurch gekennzeichnet, dass die Vielzahl an Verstomrrtungen (20) symmetrisch bezüglich der Sammelkastenmttte angeordnet ist. 2. Heat exchanger (2) according to claim 1, characterized in that the plurality of Verstomrrtungen (20) is arranged symmetrically with respect to the Sammelkastenmttte.
3. Wärmeübertrager (2) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass zwei in Längsrichtung (4) benachbarte Verstemmungen (20) gleiche oder voneinander abweichende Breiten aufweisen. 3. Heat exchanger (2) according to any one of claims 1 or 2, characterized in that two in the longitudinal direction (4) adjacent caulking (20) have the same or different widths.
4. Wärmeübertrager (2) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine einzelne Verstemmung (20) eine Breite von 0,5 - 6 mm, insbesondere 0,75 - 5 mm, insbesondere 1 - 4 mm aufweist. 4. Heat exchanger (2) according to one of claims 1 to 3, characterized in that a single caulking (20) has a width of 0.5 - 6 mm, in particular 0.75 - 5 mm, in particular 1 - 4 mm.
5. Wärmeübertrager (2) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die in Längsrichtung (4) angeordneten Vei- stemmungen (20) einen gleichen oder einen voneinander abweichen- den Abstand zueinander aufweisen. 5. Heat exchanger (2) according to one of claims 1 to 4, characterized in that in the longitudinal direction (4) arranged Vei- stemmungen (20) have a same or a mutually differing the distance to each other.
6. Wärmeübertrager (2) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass eine oder mehrere Verstemmungen (20) eine Aufnahme (26) für mindestens ein Anschlussstück (24), insbesondere Flansch oder Halter bildet. 6. Heat exchanger (2) according to one of claims 1 to 5, characterized in that one or more caulking (20) forms a receptacle (26) for at least one connecting piece (24), in particular flange or holder.
7. Wärmeübertrager (2) nach Anspruch 6, dadurch gekennzeichnet, dass das Anschlussstück an zumindest einem seiner Enden durch eine Verstemmung festgelegt ist. 7. Heat exchanger (2) according to claim 6, characterized in that the connecting piece is fixed to at least one of its ends by caulking.
8. Wärmeübertrager (2) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass das Anschlussstück an beiden Enden durch jeweils eine Verstemmung festgelegt ist. 8. Heat exchanger (2) according to claim 6 or 7, characterized in that the connecting piece is fixed at both ends by a respective caulking.
9. Wärmeübertrager (2) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Boden (8) und der Deckel (10) miteinander verlötet sind. 9. heat exchanger (2) according to one of claims 1 to 8, characterized in that the bottom (8) and the cover (10) are soldered together.
10, Wärmeübertrager (2) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Wärmeübertrager (2) eine Vielzahl von eine Wärmeübertragungsfläche, bildenden Flachrohren aufweist, wobei die Flachrohre Rohrenden und der Boden (8) der Anzahl der Flachrohre entsprechende Öffnungen (28) zur Aufnahme der Rohrenden aufweist. 10, heat exchanger (2) according to one of claims 1 to 9, characterized in that the heat exchanger (2) has a plurality of a heat transfer surface, forming flat tubes, wherein the flat tubes tube ends and the bottom (8) has the number of flat tubes corresponding openings (28) for receiving the tube ends.
11.Wärmeübertrager (2) nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Bord (18) des Bodens (8) höher ist als die äußere Kante des Deckels (TO) oder das Bord (18) des Deckels (10) höher ist als die äußere Kante (22) des Bodens (8), 11. heat exchanger (2) according to one of claims 1 to 10, characterized in that the board (18) of the bottom (8) is higher than the outer edge of the lid (TO) or the board (18) of the lid (10). is higher than the outer edge (22) of the bottom (8),
12. Wärmeübertrager (2) nach einem der Ansprüche 1 bis 11 , dadurch gekennzeichnet, dass die Höhe des Bords (18) des Bodens (8) über die äußere Kante (22) des Deckels (10) oder die Höhe des Bords (18) des Deckels (10) über die. äußere Kante des Bodens (8) 0,5 - 4 mm, insbesondere 0,75 - 3 mm, insbesondere 1 - 2,5 mm, insbeson- dere 1 - 1,5 mm beträgt. 12. Heat exchanger (2) according to one of claims 1 to 11, characterized in that the height of the board (18) of the bottom (8) over the outer edge (22) of the lid (10) or the height of the board (18) the lid (10) over the. outer edge of the bottom (8) is 0.5 to 4 mm, in particular 0.75 to 3 mm, in particular 1 to 2.5 mm, in particular 1 to 1.5 mm.
13. Wärmeübertrager (2) nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet dass die Verstemmuπgen (20) in den Eckbereichen eine Posätionierungseiπrichtung in Längsrichtung (4) für den Sammelkästen (6) bilden. 13. Heat exchanger (2) according to any one of claims 1 to 12, characterized in that form the Verstemmuπgen (20) in the corner regions Posätionseseπrichtung in the longitudinal direction (4) for the collecting tanks (6).
14. Wärmeübertrager nach einem der vorherigen Ansprüche,, dadurch gekennzeichnet, dass mindestens zwei im Querschnitt im Wesentlichen kreisförmige Längskanäle (16) vorgesehen sind, die durch min- destens eine vom Boden (8) und/oder vom Deckel (10) gebildete14. Heat exchanger according to one of the preceding claims, characterized in that at least two in cross-section substantially circular longitudinal channels (16) are provided, which by at least one of the bottom (8) and / or the cover (10) formed
Längstrennwand (14) voneinander zumindest abschnittsweise beabstandet sind. Longitudinal partition (14) are spaced apart from each other at least in sections.
EP10740630.8A 2009-08-21 2010-08-04 Heat exchanger Active EP2467665B1 (en)

Applications Claiming Priority (2)

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DE102009038297A DE102009038297A1 (en) 2009-08-21 2009-08-21 Heat exchanger
PCT/EP2010/061365 WO2011020702A1 (en) 2009-08-21 2010-08-04 Heat exchanger

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EP2467665A1 true EP2467665A1 (en) 2012-06-27
EP2467665B1 EP2467665B1 (en) 2015-10-14

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WO (1) WO2011020702A1 (en)

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US20120211495A1 (en) 2012-08-23
DE102009038297A1 (en) 2011-03-03
WO2011020702A1 (en) 2011-02-24
EP2467665B1 (en) 2015-10-14
US8985193B2 (en) 2015-03-24

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