EP2267390A2 - Stacked plate cooler - Google Patents

Stacked plate cooler Download PDF

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Publication number
EP2267390A2
EP2267390A2 EP10164783A EP10164783A EP2267390A2 EP 2267390 A2 EP2267390 A2 EP 2267390A2 EP 10164783 A EP10164783 A EP 10164783A EP 10164783 A EP10164783 A EP 10164783A EP 2267390 A2 EP2267390 A2 EP 2267390A2
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EP
European Patent Office
Prior art keywords
stack
base plate
disc
edge
bead
Prior art date
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Granted
Application number
EP10164783A
Other languages
German (de)
French (fr)
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EP2267390A3 (en
EP2267390B1 (en
EP2267390B2 (en
Inventor
Andreas Dränkow
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Mahle Behr GmbH and Co KG
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Behr GmbH and Co KG
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Publication of EP2267390A3 publication Critical patent/EP2267390A3/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/06—Adapter frames, e.g. for mounting heat exchanger cores on other structure and for allowing fluidic connections

Definitions

  • the invention relates to a stacked plate radiator, in particular for an internal combustion engine, a transmission or a filter module, according to the preamble of claim 1.
  • the base plate Due to the raised edge along the outline of the stack, the base plate has a stiffening in the form of the system stack of the stack, so that the base plate for a given material thickness has a higher strength or can be made cost of a thinner material given strength requirements.
  • the base plate has at least one over the outline protruding mounting portion for fixing the Stapelaminkühlers to a structure.
  • a fixing portion may be, for example, a pierced tab for inserting a screw or the like.
  • the edge is formed as preferably curved in the direction of the stack bead.
  • a bead according to the invention is any groove-like limited in diameter bulge of the base plate to understand their vertices on one side overhanging a surface of the base plate and undercuts the surface of the base plate on the opposite side.
  • the edge of the invention is not formed as a bead, but as a trough-shaped depression of the base plate, which corresponds in its surface substantially the outline of the stack of exchanger disks.
  • the bead completely surrounds the outline of the stack, whereby a particularly good support of the entire edge of the stack is made possible.
  • the bead only partially circumscribes the outline of the stack, wherein in a preferred detailed design an interruption of the bead in the region of a fluid connection is provided.
  • the base plate can be formed particularly level and uninfluenced by the bead-like formation, in particular in the area of fluid connections. This may be desired, for example, for the connection of the base plate to an internal combustion engine, to a transmission or to a filter module via sealing means such as O-rings or other seals.
  • the bead of the preferred embodiment may be incorporated in any manner in the base plate, the methods embossing and / or deep drawing of the base plate in the interest of low-cost and accurate mass production are preferred.
  • the base plate rests directly on the stack of exchanger disks.
  • a bent-up edge of a lowermost exchanger disk rests against the edge of the base plate at least in sections and is soldered to the edge.
  • the stack is particularly well stiffened and in particular the bottom exchanger plate is reinforced by their soldered system at the edge.
  • a special reinforcing disk in particular a reinforcing disk of greater material thickness than the other exchanger disks, can be dispensed with between the stack and the baseplate.
  • Such reinforcing discs are heretofore common in prior art stacked disc radiators because one doubled by a subsequent disc or supported edge region of the lowermost exchanger disk could constitute a weak point of the stack.
  • a stiffening plate is soldered flat on the base plate.
  • a particularly flat sealing surface for the sealing attachment of the stacked disc radiator to a flange, for example an internal combustion engine can be formed by such a fluting plate.
  • the stiffening plate is particularly preferably arranged on an opposite side of the base plate relative to the stack. In particular, this can be achieved that you base plate can be made sufficiently thin in the interest of the formation of the edge, in conjunction with the surface soldered stiffening plate creates a particularly dimensionally rigid Grundptattentician.
  • Fig. 1 shows a Stapelumblenkühler, in this case an oil cooler for flanging to an internal combustion engine, to a transmission or a filter module, according to the prior art.
  • a plurality of exchanger disks 1 is arranged one above the other to form a stack and soldered to one another in a fluid-tight manner by means of erected edges 1a.
  • the exchanger disks 1 have a material thickness of typically between 0.3 mm and 0.8 mm and in the present case have a total of 4 overlapping openings 1b provided in the corner regions, which form fluid channels for flowing through with oil and cooling water in the stacked arrangement.
  • the exchanger disks 1 have embossed structures 1c for generating turbulences of the fluids flowing through.
  • turbulence inserts can also be provided between the exchanger disks in a known manner.
  • the stack of exchanger discs 1 is arranged according to the prior art on a reinforcing plate 2, which in turn is soldered flat with a flat base plate 3.
  • the reinforcing disk 2 has a greater material thickness than the exchanger disks 1, typically about 0.3 mm to 2 mm.
  • Their bent-up edge 2a is soldered circumferentially to the edge of the lowermost exchanger disk 1, so that no edge-side weakening of the stack occurs in the region of the lowermost exchanger disk.
  • Fig. 2 shows the base plate of a first embodiment of the invention, the with the otherwise not shown stack of heat exchanger plates 1 according to the prior art according to Fig. 1 can be combined.
  • the reinforcing plate 2 (prior art, Fig. 1 ) is not required to connect the stack of heat exchanger disks 1 according to the prior art with the base plate 3 according to the invention.
  • the base plate 3 according to the first embodiment of the invention is made of a flat aluminum sheet, wherein a circumferential closed edge 4 is provided in the form of a bulging in the direction of the stack bead.
  • the edge or the bead 4 follows the outline of the stack of exchanger disks 1, so that the bent-up edge 1a of the lowermost exchanger disk 1 rests against the flank of the bulged bead 4 of the base plate 3 and is soldered.
  • the base plate 3 has in the present case a total of 4 openings 5, which are aligned with the fluid channels of the openings 1b of the exchanger plates.
  • the base plate 3 has openings for Fiuid die arrangement.
  • the in Fig. 4 shown Stapetusionnkühfer with a modification of the base plate according to Fig. 2 provided, in which only three openings must be present for the connection of fluid in the base plate, wherein the fourth connection 5 'is provided in an upper end plate 6 of the stack of exchanger disks 1.
  • the stacked disc radiator is designed to be flanged to a structure such as an internal combustion engine, a transmission or a filter module, it is expedient to have at least one opening 5.
  • Fig. 5 shows, the lowermost exchanger plate 1 with its raised edge 1a directly to the bead 4 of the base plate 3 and is soldered to this.
  • the bead 4 immediately forms a reinforcement of the lowermost exchanger disk in its edge region, so that it is possible to dispense with the reinforcing disk 2 according to the prior art.
  • All of the exchanger disks of the stack can thus have the same low material thickness. Except where appropriate, this excludes the upper end plate 6 of the stack, which is not counted in the context of the invention to the stack of exchanger disks 1.
  • the height sh of the bead 4 in the range between 1 and 6 mm.
  • Fig. 6 shows a modification of the base plate Fig. 2 in which the bead 4 does not completely wrap around the outline of the stack. Rather, an interruption of the bead 4 is provided in a region 7 in the vicinity of an opening 5 of the base plate 3.
  • This allows the base plate on its underside (see Fig. 7 ) in the region 7 be particularly flat, wherein the region 7 is provided as a sealing surface for cooperation with a seal, for example O-ring seal or surface seal.
  • the stack disc radiator is screwed by means of the underside of the base plate 3 to a flange of an internal combustion engine, a transmission or a filter module, to which the base plate 3 has a plurality of protruding over the outline of the exchanger disk stack mounting portions 8 with screw holes 8a.
  • Fig. 8 shows a further embodiment in which opposite to the stack 1, a stiffening plate 9 is soldered flat on the base plate 3.
  • the base plate 3 corresponds in shape essentially to the base plate according to FIG Fig. 2 , wherein the material thickness can be kept relatively low and thus the formation of the bead 4, for example by means of embossing or deep drawing, is particularly simple.
  • the stiffening plate 9 is soldered flat with the base plate 3, wherein the underside of the stiffening plate forms a flat sealing surface for flanging the stacked disc radiator. It is noted that the stiffening plate 9 completely follows the outline of the base plate 3, so that the attachment portions 8 are formed on both plates 3, 9.
  • Fig. 9 shows a further embodiment of the invention, in which the bead 4 in the base plate 3 not as in the examples after Fig. 2 to Fig. 8 is produced by deep drawing, but by embossing the base plate 3.
  • a groove 4a is impressed on the underside of the base plate 3, which forms a protruding edge 4b on the upper side of the base plate 3.
  • an edge 4c of the edge 4b facing the stack of exchanger disks 1 is formed obliquely, in order to allow the largest possible possible soldering with the bent-over edge 1a of the lowermost exchanger disk 1.
  • the height h of the embossed protruding edge 4b above the plane of the base plate 3 is typically up to two-thirds of the material thickness s of the base plate 3.
  • material thicknesses s of the base plate 3 in the range between 2 mm and 8 mm are preferably provided.
  • the plate 9 may be made thinner, such as 0.3 to 6 mm.

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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)

Abstract

The cooler has exchanger plates arranged above each other to form a stack. A base plate (3) is arranged at an end of the stack and includes a curved beading (4), which is positioned along a direction of the stack. The beading sectionally follows a contour of the stack and partially or completely encloses the contour. The base plate includes a fastening section (8) projecting above the contour for fixing the cooler at a structure. A discontinuation point of the beading is provided in a region of a fluid connection (5). A stiffening plate is soldered on the base plate.

Description

Die Erfindung betrifft einen Stapelscheibenkühler, insbesondere für einen Verbrennungsmotor, ein Getriebe oder ein Filtermodul, nach dem Oberbegriff des Anspruchs 1.The invention relates to a stacked plate radiator, in particular for an internal combustion engine, a transmission or a filter module, according to the preamble of claim 1.

Aus der Praxis des Fahrzeugbaus ist es bekannt, zum Beispiel Ölkühler in Form von Stapelscheibenkühlern auszubilden, wobei ein Stapel von miteinander verlöteten Tauscherscheiben auf einer planen, verdickten Grundplatte angeordnet ist, und wobei sich zwischen dem Stapel von Tauscherscheiben und der Grundplatte eine zusätzliche Verstärkungsplatte befindet. Die Grundplatte ist mittels Schrauben an einem Flansch zum Beispiel eines Verbrennungsmotors, eines Getriebes oder eines Filtermoduls angebracht, wozu die Grundplatte seitlich vorstehende, durchbohrte Laschen umfasst.From the practice of vehicle construction, it is known to form, for example, oil coolers in the form of stack disc radiators, wherein a stack of mutually soldered exchanger discs is disposed on a flat, thickened base plate, and wherein there is an additional reinforcement plate between the stack of exchanger discs and the base plate. The base plate is attached by means of screws to a flange of, for example, an internal combustion engine, a transmission or a filter module, for which purpose the base plate comprises laterally projecting, pierced tabs.

Es ist die Aufgabe der Erfindung, einen Stapelscheibenkühler anzugeben bei dem eine Grundplatte zur Anbringung des Stapels formsteif und kostengünstig ausgebildet ist.It is the object of the invention to provide a stacked disc cooler in which a base plate for attachment of the stack is dimensionally stable and inexpensive.

Diese Aufgabe wird für einen eingangs genannten Stapelscheibenkühler erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruch 1 gelöst. Durch den aufgestellten Rand entlang dem Umriss des Stapels hat die Grundplatte eine Formversteifung im Bereich der Anlage des Stapels, so dass die Grundplatte bei gegebener Materialdicke eine höhere Festigkeit aufweist oder bei gegebenen Festigkeitsanforderungen aus einem dünneren Material kostengünstig gefertigt werden kann.This object is achieved according to the invention for an aforementioned stacked disc radiator with the characterizing features of claim 1. Due to the raised edge along the outline of the stack, the base plate has a stiffening in the form of the system stack of the stack, so that the base plate for a given material thickness has a higher strength or can be made cost of a thinner material given strength requirements.

Bei einer bevorzugten Ausführungsform der Erfindung hat die Grundplatte zumindest einen über den Umriss vorstehenden Befestigungsabschnitt zur Festlegung des Stapelscheibenkühlers an einer Struktur. Ein solcher Befestigungsabschnitt kann zum Beispiel eine durchbohrte Lasche zur Einführung einer Schraube oder Ähnliches sein. Die Befestigung des Stapelscheibenkühlers über das Befestigungsmittel der Grundplatte kann Biegemomente in die Grundplatte einbringen, so dass die erfindungsgemäße Versteifung der Grundplatte besonders vorteilhaft ist.In a preferred embodiment of the invention, the base plate has at least one over the outline protruding mounting portion for fixing the Stapelscheibenkühlers to a structure. Such a fixing portion may be, for example, a pierced tab for inserting a screw or the like. The attachment of the stacked disc radiator via the fastening means of the base plate can introduce bending moments in the base plate, so that the stiffening of the base plate according to the invention is particularly advantageous.

In besonders bevorzugter Ausführungsform der Erfindung ist der Rand als bevorzugt in Richtung des Stapels gewölbte Sicke ausgebildet. Unter einer Sicke im Sinne der Erfindung ist jegliche rillenartig im Durchmesser begrenzte Aufwölbung der Grundplatte zu verstehen, deren Scheitel auf der einen Seite eine Oberfläche der Grundplatte überragt und auf der gegenüberliegenden Seite die Oberfläche der Grundplatte unterschneidet. Je nach Anforderungen ist es in alternativer Ausgestaltung der Erfindung auch möglich, dass der erfindungsgemäße Rand nicht als Sicke, sondern als wannenförmige Vertiefung der Grundplatte ausgebildet ist, die in ihrer Fläche im Wesentlichen dem Umriss des Stapels von Tauscherscheiben entspricht.In a particularly preferred embodiment of the invention, the edge is formed as preferably curved in the direction of the stack bead. Under a bead according to the invention is any groove-like limited in diameter bulge of the base plate to understand their vertices on one side overhanging a surface of the base plate and undercuts the surface of the base plate on the opposite side. Depending on requirements, it is also possible in an alternative embodiment of the invention that the edge of the invention is not formed as a bead, but as a trough-shaped depression of the base plate, which corresponds in its surface substantially the outline of the stack of exchanger disks.

Bei einer ersten möglichen Detailgestaltung ist es vorgesehen, dass die Sicke den Umriss des Stapels vollständig umläuft, wodurch eine besonders gute Abstützung des gesamten Randes des Stapels ermöglicht ist.In a first possible detail design, it is provided that the bead completely surrounds the outline of the stack, whereby a particularly good support of the entire edge of the stack is made possible.

Bei einer hierzu alternativen Detailgestaltung ist es vorgesehen, dass die Sicke den Umriss des Stapels nur teilweise umläuft, wobei in bevorzugter Detailgestaltung eine Unterbrechung der Sicke im Bereich eines Fluidanschlusses vorgesehen ist. Hierdurch lässt sich die Grundplatte insbesondere im Bereich von Fluidanschlüssen besonders eben und unbeeinflusst durch die sickenartige Ausformung ausbilden. Dies kann zum Beispiel für die Anbindung der Grundplatte an einen Verbrennungsmotor, an ein Getriebe oder an ein Filtermodul über Dichtmittel wie etwa O-Ringe oder andere Dichtungen gewünscht sein.In an alternative detail design for this purpose, it is provided that the bead only partially circumscribes the outline of the stack, wherein in a preferred detailed design an interruption of the bead in the region of a fluid connection is provided. As a result, the base plate can be formed particularly level and uninfluenced by the bead-like formation, in particular in the area of fluid connections. This may be desired, for example, for the connection of the base plate to an internal combustion engine, to a transmission or to a filter module via sealing means such as O-rings or other seals.

Die Sicke des bevorzugten Ausführungsbeispiels kann auf beliebige Weise in die Grundplatte eingebracht sein, wobei die Verfahren Prägen und/oder Tiefziehen der Grundplatte im Interesse einer kostengünstigen und genauen Serienfertigung bevorzugt sind.The bead of the preferred embodiment may be incorporated in any manner in the base plate, the methods embossing and / or deep drawing of the base plate in the interest of low-cost and accurate mass production are preferred.

Bei einem möglichen Ausführungsbeispiel der Erfindung liegt die Grundplatte unmittelbar auf dem Stapel von Tauscherscheiben auf. In besonders bevorzugter Detailgestaltung liegt dabei ein aufgebogener Rand einer untersten Tauscherscheibe an dem Rand der Grundplatte zumindest abschnittsweise an und ist mit dem Rand verlötet. Hierdurch ist der Stapel besonders gut versteift und insbesondere die unterste Tauscherscheibe ist durch ihre verlötete Anlage an dem Rand verstärkt. Dabei kann in bevorzugter Detailgestaltung auf eine besondere Verstärkungsscheibe, insbesondere auf eine Verstärkungsscheibe von größerer Materialstärke als die übrigen Tauscherscheiben, zwischen dem Stapel und der Grundplatte verzichtet werden. Solche Verstärkungsscheiben sind bisher bei Stapelscheibenkühlern nach dem Stand der Technik üblich, da ein nicht von einer nachfolgenden Scheibe verdoppelter bzw. gestützter Randbereich der untersten Tauscherscheibe eine Schwachstelle des Stapels darstellen könnte.In one possible embodiment of the invention, the base plate rests directly on the stack of exchanger disks. In a particularly preferred detailed design, a bent-up edge of a lowermost exchanger disk rests against the edge of the base plate at least in sections and is soldered to the edge. As a result, the stack is particularly well stiffened and in particular the bottom exchanger plate is reinforced by their soldered system at the edge. In this case, in a preferred detailed design, a special reinforcing disk, in particular a reinforcing disk of greater material thickness than the other exchanger disks, can be dispensed with between the stack and the baseplate. Such reinforcing discs are heretofore common in prior art stacked disc radiators because one doubled by a subsequent disc or supported edge region of the lowermost exchanger disk could constitute a weak point of the stack.

Bei einer möglichen Ausführungsform der Erfindung ist eine Versteifungsplatte flächig auf der Grundplatte verlötet. Durch eine solche Versfeifungsplatte kann zum Beispiel eine besonders ebene Dichtfläche zur dichtenden Anbringung des Stapelscheibenkühlers an einen Flansch, zum Beispiel eines Verbrennungsmotors, ausgebildet sein. Hierzu ist die Versteifungsplatte besonders bevorzugst auf einer bezüglich des Stapels gegenüberliegenden Seite der Grundplatte angeordnet. Insbesondere kann hierdurch erreicht werden, dass dich Grundplatte im Interesse der Ausformung des Randes ausreichend dünn gestaltet sein kann, wobei in Verbindung mit der flächig verlöteten Versteifungsplatte eine besonders formsteife Grundptatteneinheit entsteht.In a possible embodiment of the invention, a stiffening plate is soldered flat on the base plate. For example, a particularly flat sealing surface for the sealing attachment of the stacked disc radiator to a flange, for example an internal combustion engine, can be formed by such a fluting plate. For this purpose, the stiffening plate is particularly preferably arranged on an opposite side of the base plate relative to the stack. In particular, this can be achieved that you base plate can be made sufficiently thin in the interest of the formation of the edge, in conjunction with the surface soldered stiffening plate creates a particularly dimensionally rigid Grundptatteneinheit.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den nachfolgend beschriebenen Ausführungsbeispielen sowie aus den abhängigen Ansprüchen.Further advantages and features of the invention will become apparent from the embodiments described below and from the dependent claims.

Nachfolgend werden mehrere Ausführungsbeispiele der Erfindung beschrieben und anhand der anliegenden Zeichnungen näher erläutert.

Fig. 1
zeigt eine räumliche Explosionsdarstellung eines Stapelscheiben- kühlers nach dem Stand der Technik.
Fig. 2
zeigt eine räumliche Ansicht einer erfindungsgemäßen Grundplat- te von oben.
Fig. 3
zeigt die Platte aus Fig. 2 von unten.
Fig. 4
zeigt eine räumliche Ansicht eines erfindungsgemäßen Stapel- scheibenkühters mit der Grundplatte aus Fig. 2.
Fig. 5
zeigt eine ausschnittsweise Schnittansicht durch den Stapelschei- benkühler aus Fig. 4 im Bereich der Grundplatte.
Fig. 6
zeigt die Grundplatte eines weiteren Ausführungsbeispiels der Er- findung in räumlicher Ansicht von oben.
Fig. 7
zeigt die Grundplatte aus Fig. 6 von unten.
Fig. 8
zeigt die Grundplatte eines weiteren Ausführungsbeispiels der Er- findung.
Fig. 9
zeigt eine schematische Schnittansicht durch ein weiteres Ausfüh- rungsbeispiel der Erfindung.
Hereinafter, several embodiments of the invention will be described and explained in more detail with reference to the accompanying drawings.
Fig. 1
shows a spatial exploded view of a stacked-disk cooler according to the prior art.
Fig. 2
shows a spatial view of a base plate according to the invention from above.
Fig. 3
shows the plate Fig. 2 from underneath.
Fig. 4
shows a three-dimensional view of a stacking disc cooler according to the invention with the base plate Fig. 2 ,
Fig. 5
shows a fragmentary sectional view through the stacking disc cooler Fig. 4 in the area of the base plate.
Fig. 6
shows the base plate of another embodiment of the invention in a spatial view from above.
Fig. 7
shows the base plate Fig. 6 from underneath.
Fig. 8
shows the base plate of another embodiment of the invention.
Fig. 9
shows a schematic sectional view through a further embodiment of the invention.

Fig. 1 zeigt einen Stapelscheibenkühler, vorliegend einen Ölkühler zum Anflanschen an einen Verbrennungsmotor, an ein Getriebe oder ein Filtermodul, nach dem Stand der Technik. Eine Mehrzahl von Tauscherscheiben 1 ist übereinander zu einem Stapel angeordnet und mittels aufgestellten Rändern 1a fluiddicht umlaufend miteinander verlötet. Die Tauscherscheiben 1 haben eine Materialdicke von typisch zwischen 0,3 mm und 0,8 mm und weisen vorliegend insgesamt 4 in den Eckbereichen vorgesehene, überdeckende Durchbrechungen 1b auf, die in der gestapelten Anordnung Fluidkanäle zur Durchströmung mit Öl und Kühlwasser ausbilden. Fig. 1 shows a Stapelscheibenkühler, in this case an oil cooler for flanging to an internal combustion engine, to a transmission or a filter module, according to the prior art. A plurality of exchanger disks 1 is arranged one above the other to form a stack and soldered to one another in a fluid-tight manner by means of erected edges 1a. The exchanger disks 1 have a material thickness of typically between 0.3 mm and 0.8 mm and in the present case have a total of 4 overlapping openings 1b provided in the corner regions, which form fluid channels for flowing through with oil and cooling water in the stacked arrangement.

Die Tauscherscheiben 1 haben vorliegend eingeprägte Strukturen 1c zur Erzeugung von Turbulenzen der durchströmenden Fluide. Alternativ können auch auf bekannte Weise Turbulenzeinlagen zwischen den Tauscherscheiben vorgesehen sein. Der Stapel von Tauscherscheiben 1 ist nach dem Stand der Technik auf einer Verstärkungsscheibe 2 angeordnet, welche ihrerseits flächig mit einer ebenen Grundplatte 3 verlötet ist. Die Verstärkungsscheibe 2 hat eine größere Materialstärke als die Tauscherscheiben 1, typisch etwa die 0,3 mm bis 2 mm. Ihr aufgebogener Rand 2a ist umlaufend mit dem Rand der untersten Tauscherscheibe 1 verlötet, so dass im Bereich der untersten Tauscherscheibe keine randseitige Schwächung des Stapels auftritt.In the present case, the exchanger disks 1 have embossed structures 1c for generating turbulences of the fluids flowing through. Alternatively, turbulence inserts can also be provided between the exchanger disks in a known manner. The stack of exchanger discs 1 is arranged according to the prior art on a reinforcing plate 2, which in turn is soldered flat with a flat base plate 3. The reinforcing disk 2 has a greater material thickness than the exchanger disks 1, typically about 0.3 mm to 2 mm. Their bent-up edge 2a is soldered circumferentially to the edge of the lowermost exchanger disk 1, so that no edge-side weakening of the stack occurs in the region of the lowermost exchanger disk.

Fig. 2 zeigt die Grundplatte eines ersten Ausführungsbeispiels der Erfindung, die mit dem ansonsten nicht gezeigten Stapel von Tauscherscheiben 1 nach dem Stand der Technik gemäß Fig. 1 kombinierbar ist. Die Verstärkungsplatte 2 (Stand der Technik, Fig. 1) ist nicht erforderlich, um den Stapel von Tauscherscheiben 1 gemäß Stand der Technik mit der erfindungsgemäßen Grundplatte 3 zu verbinden. Fig. 2 shows the base plate of a first embodiment of the invention, the with the otherwise not shown stack of heat exchanger plates 1 according to the prior art according to Fig. 1 can be combined. The reinforcing plate 2 (prior art, Fig. 1 ) is not required to connect the stack of heat exchanger disks 1 according to the prior art with the base plate 3 according to the invention.

Die Grundplatte 3 nach dem ersten Ausführungsbeispiel der Erfindung ist aus einem ebenen Aluminiumblech gefertigt, wobei ein umlaufende geschlossener Rand 4 in Form einer in Richtung des Stapels aufgewölbten Sicke vorgesehen ist. Der Rand bzw. die Sicke 4 folgt dabei dem Umriss des Stapels von Tauscherscheiben 1, so dass der aufgebogene Rand 1a der untersten Tauscherscheibe 1 an der Flanke der aufgewölbten Sicke 4 der Grundplatte 3 anliegt und verlötet ist.The base plate 3 according to the first embodiment of the invention is made of a flat aluminum sheet, wherein a circumferential closed edge 4 is provided in the form of a bulging in the direction of the stack bead. The edge or the bead 4 follows the outline of the stack of exchanger disks 1, so that the bent-up edge 1a of the lowermost exchanger disk 1 rests against the flank of the bulged bead 4 of the base plate 3 and is soldered.

Die Grundplatte 3 hat vorliegend insgesamt 4 Durchbrechungen 5, die mit den Fluidkanälen der Durchbrechungen 1b der Tauscherscheiben fluchten. Im Sinne der Erfindung ist es nicht erforderlich, dass die Grundplatte 3 Durchbrechungen zur Fiuiddurchführung aufweist. Insbesondere können je nach Bauform eines erfindungsgemäßen Stapetscheibenkühters zwischen null und vier Durchbrechungen für Fluidkanäle vorgesehen sein. Zum Beispiel ist der in Fig. 4 gezeigte Stapetscheibenkühfer mit einer Abwandlung der Grundplatte nach Fig. 2 versehen, bei der lediglich drei Durchbrechungen zum Anschluss von Fluid in der Grundplatte vorliegen müssen, wobei der vierte Anschluss 5' in einer oberen Abschlussplatte 6 des Stapels von Tauscherscheiben 1 vorgesehen ist. Wird der Stapelscheibenkühler zur Anflanschung an eine Struktur wie etwa einen Verbrennungsmotor, ein Getriebe oder ein Filtermodul ausgebildet, so liegt zweckmäßig wenigstens eine Durchbrechung 5 vor.The base plate 3 has in the present case a total of 4 openings 5, which are aligned with the fluid channels of the openings 1b of the exchanger plates. For the purposes of the invention, it is not necessary that the base plate 3 has openings for Fiuiddurchführung. In particular, depending on the design of a Stapetscheibenkühters invention can be provided between zero and four openings for fluid channels. For example, the in Fig. 4 shown Stapetscheibenkühfer with a modification of the base plate according to Fig. 2 provided, in which only three openings must be present for the connection of fluid in the base plate, wherein the fourth connection 5 'is provided in an upper end plate 6 of the stack of exchanger disks 1. If the stacked disc radiator is designed to be flanged to a structure such as an internal combustion engine, a transmission or a filter module, it is expedient to have at least one opening 5.

Wie insbesondere Fig. 5 zeigt, liegt die unterste Tauscherscheibe 1 mit ihrem aufgestellten Rand 1a unmittelbar an der Sicke 4 der Grundplatte 3 an und ist mit dieser verlötet. Somit bildet die Sicke 4 unmittelbar eine Verstärkung der untersten Tauscherscheibe in ihrem Randbereich, so dass auf die Verstärkungsscheibe 2 nach dem Stand der Technik verzichtet werden kann. Sämtliche der Tauscherscheiben des Stapels können somit die gleiche geringe Materialstärke aufweisen. Gegebenenfalls ausgenommen ist hiervon die obere Abschlussplatte 6 des Stapels, die nicht im Sinne der Erfindung zu dem Stapel aus Tauscherscheiben 1 gezählt wird. Vorteilhaft ist die Höhe sh der Sicke 4 im Bereich zwischen 1 und 6 mm.In particular Fig. 5 shows, the lowermost exchanger plate 1 with its raised edge 1a directly to the bead 4 of the base plate 3 and is soldered to this. Thus, the bead 4 immediately forms a reinforcement of the lowermost exchanger disk in its edge region, so that it is possible to dispense with the reinforcing disk 2 according to the prior art. All of the exchanger disks of the stack can thus have the same low material thickness. Except where appropriate, this excludes the upper end plate 6 of the stack, which is not counted in the context of the invention to the stack of exchanger disks 1. Advantageously, the height sh of the bead 4 in the range between 1 and 6 mm.

Fig. 6 zeigt eine Abwandlung der Grundplatte aus Fig. 2, bei der die Sicke 4 nicht vollständig um den Umriss des Stapels umläuft. Vielmehr ist in einem Bereich 7 im Umfeld einer Durchbrechung 5 der Grundplatte 3 eine Unterbrechung der Sicke 4 vorgesehen. Hierdurch kann die Grundplatte auf ihrer Unterseite (siehe Fig. 7) in dem Bereich 7 besonders eben ausgeformt sein, wobei der Bereich 7 als Dichtfläche zur Zusammenwirkung mit einer Dichtung, zum Beispiel O-Ringdichtung oder Flächendichtung, vorgesehen ist. Fig. 6 shows a modification of the base plate Fig. 2 in which the bead 4 does not completely wrap around the outline of the stack. Rather, an interruption of the bead 4 is provided in a region 7 in the vicinity of an opening 5 of the base plate 3. This allows the base plate on its underside (see Fig. 7 ) in the region 7 be particularly flat, wherein the region 7 is provided as a sealing surface for cooperation with a seal, for example O-ring seal or surface seal.

In allen gezeigten Ausführungsbeispielen wird der Stapelscheibenkühler mittels der Unterseite der Grundplatte 3 an einen Flansch eines Verbrennungsmotors, eines Getriebes oder eines Filtermoduls angeschraubt, wozu die Grundplatte 3 mehrere über den Umriss des Tauscherscheibenstapels vorstehende Befestigungsabschnitte 8 mit Schraubenbohrungen 8a aufweist.In all the embodiments shown, the stack disc radiator is screwed by means of the underside of the base plate 3 to a flange of an internal combustion engine, a transmission or a filter module, to which the base plate 3 has a plurality of protruding over the outline of the exchanger disk stack mounting portions 8 with screw holes 8a.

Fig. 8 zeigt ein weiteres Ausführungsbeispiel, bei dem gegenüberliegend des Stapels 1 eine Versteifungsplatte 9 flächig auf der Grundplatte 3 verlötet ist. Die Grundplatte 3 entspricht in ihrer Form im Wesentlichen der Grundplatte gemäß Fig. 2, wobei die Materialstärke relativ gering gehalten werden kann und somit die Ausbildung der Sicke 4, zum Beispiel mittels Prägen oder Tiefziehen, besonders einfach ist. Bezüglich der Planheit der Unterseite der Grundplatte 3 werden dabei relativ geringe Anforderungen gestellt, Die Versteifungsplatte 9 ist flächig mit der Grundplatte 3 verlötet, wobei die Unterseite der Versteifungsplatte eine ebene Dichtfläche zum Anflanschen des Stapelscheibenkühlers ausbildet. Es wird angemerkt, dass die Versteifungsplatte 9 dem Umriss der Grundplatte 3 vollständig folgt, so dass die Befestigungsabschnitte 8 an beiden Platte 3, 9 ausgeformt sind. Fig. 8 shows a further embodiment in which opposite to the stack 1, a stiffening plate 9 is soldered flat on the base plate 3. The base plate 3 corresponds in shape essentially to the base plate according to FIG Fig. 2 , wherein the material thickness can be kept relatively low and thus the formation of the bead 4, for example by means of embossing or deep drawing, is particularly simple. Regarding the flatness of the bottom of the Base plate 3 are thereby made relatively low requirements, the stiffening plate 9 is soldered flat with the base plate 3, wherein the underside of the stiffening plate forms a flat sealing surface for flanging the stacked disc radiator. It is noted that the stiffening plate 9 completely follows the outline of the base plate 3, so that the attachment portions 8 are formed on both plates 3, 9.

Fig. 9 zeigt ein weiteres Ausführungsbeispiel der Erfindung, bei dem die Sicke 4 in der Grundplatte 3 nicht wie in den Beispielen nach Fig. 2 bis Fig. 8 durch Tiefziehen hergestellt ist, sondern durch Prägung der Grundplatte 3. Dabei wird auf der Unterseite der Grundplatte 3 eine Rille 4a eingeprägt, die auf der Oberseite der Grundplatte 3 einen vorstehenden Rand 4b ausformt. Dabei ist eine dem Stapel von Tauscherscheiben 1 zugewandte Flanke 4c des Randes 4b geneigt ausgeformt, um eine möglichst flächige Verlötung mit dem aufgebogenen Rand 1a der untersten Tauscherscheibe 1 zu ermöglichen. Fig. 9 shows a further embodiment of the invention, in which the bead 4 in the base plate 3 not as in the examples after Fig. 2 to Fig. 8 is produced by deep drawing, but by embossing the base plate 3. In this case, a groove 4a is impressed on the underside of the base plate 3, which forms a protruding edge 4b on the upper side of the base plate 3. In this case, an edge 4c of the edge 4b facing the stack of exchanger disks 1 is formed obliquely, in order to allow the largest possible possible soldering with the bent-over edge 1a of the lowermost exchanger disk 1.

Die Höhe h des geprägten vorstehenden Randes 4b über der Ebene der Grundplatte 3 beträgt typisch bis zu zwei Drittel der Materialstärke s der Grundplatte 3. Für sämtliche der vorstehend beschriebenen Ausführungsbeispiele sind Materialstärken s der Grundplatte 3 im Bereich zwischen 2 mm und 8 mm bevorzugt vorgesehen. Dabei kann beispielsweise auch die Platte 9 dünner ausgeführt sein, wie beispielsweise 0,3 bis 6 mm.The height h of the embossed protruding edge 4b above the plane of the base plate 3 is typically up to two-thirds of the material thickness s of the base plate 3. For all of the embodiments described above, material thicknesses s of the base plate 3 in the range between 2 mm and 8 mm are preferably provided. In this case, for example, the plate 9 may be made thinner, such as 0.3 to 6 mm.

Es versteht sich, dass die einzelnen Merkmale der verschiedenen Ausführungsbeispiele je nach Anforderungen sinnvoll miteinander kombiniert werden können.It is understood that the individual features of the various embodiments can be usefully combined depending on the requirements.

Claims (11)

Stapelscheibenkühler umfassend
eine Mehrzahl von aufeinander zu einem Stapel angeordneten Tauscherscheiben (1), und
eine an einem Ende des Stapels angeordnete Grundplatte (3), dadurch gekennzeichnet,
dass die Grundplatte (3) einen in Richtung des Stapels (1) aufgestellten Rand (4) aufweist, der zumindest abschnittsweise einem Umriss des Stapels (1) folgt.Comprising stacked disc cooler
a plurality of mutually stacked to a stack exchanger plates (1), and
a base plate (3) arranged at one end of the stack, characterized
in that the base plate (3) has an edge (4) set up in the direction of the stack (1), which at least in sections follows an outline of the stack (1). Stapelscheibenkühler nach Anspruch 1, dadurch gekennzeichnet, dass die Grundplatte (3) zumindest einen über den Umriss vorstehenden Befestigungsabschnitt (8) zur Festlegung des Stapelscheibenkühlers an einer Struktur aufweist.Stack disc radiator according to claim 1, characterized in that the base plate (3) has at least one over the outline projecting mounting portion (8) for fixing the Stapelscheibenkühlers to a structure. Stapeischeibenkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Rand als insbesondere in Richtung des Stapels gewölbte Sicke (4) ausgebildet ist.Stapeischeibenkühler according to one of the preceding claims, characterized in that the edge is formed as in particular in the direction of the stack curved bead (4). Stapelscheibenkühler nach Anspruch 3, dadurch gekennzeichnet, dass die Sicke (4) den Umriss des Stapels (1) vollständig umläuft.Stack disc radiator according to claim 3, characterized in that the bead (4) completely surrounds the outline of the stack (1). Stapelscheibenkühler nach Anspruch 3, dadurch gekennzeichnet, dass die Sicke (4) den Umriss des Stapels (1) nur teilweise umläuft, wobei insbesondere eine Unterbrechung (7) der Sicke im Bereich eines Fluidanschlusses (5) vorgesehen ist.Stack disc radiator according to claim 3, characterized in that the bead (4) only partially circumscribes the outline of the stack (1), wherein in particular an interruption (7) of the bead in the region of a fluid connection (5) is provided. Stapelscheibenkühler nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass die Sicke (4) durch Prägung oder durch Tiefziehen in die Grundplatte (3) eingebracht ist.Stack disc radiator according to one of claims 3 to 5, characterized in that the bead (4) is introduced by embossing or by deep drawing in the base plate (3). Stapelscheibenkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Grundplatte (3) unmittelbar auf dem Stapel von Tauscherscheiben (1) aufliegt,Stack disc radiator according to one of the preceding claims, characterized in that the base plate (3) rests directly on the stack of exchanger discs (1), Stapelscheibenkühler nach Anspruch 7, dadurch gekennzeichnet, dass ein aufgebogener Rand (1a) einer untersten Tauscherscheibe (1) an dem Rand (4) der Grundplatte (3) zumindest abschnittsweise anliegt und mit dem Rand (4) verlötet ist.Stack disc radiator according to claim 7, characterized in that a bent edge (1a) of a lowermost exchanger disc (1) on the edge (4) of the base plate (3) at least partially abuts and is soldered to the edge (4). Stapelscheibenkühler nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass zwischen der Grundplatte (3) und dem Stapel (1) keine Verstärkungsscheibe (2) angeordnet ist, insbesondere keine Verstärkungsscheibe (2) einer größeren Materialstärke als die Tauscherscheiben (1).Stack disc radiator according to claim 7 or 8, characterized in that between the base plate (3) and the stack (1) no reinforcing disc (2) is arranged, in particular no reinforcing disc (2) of a greater material thickness than the exchanger discs (1). Stapelscheibenkühler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Versteifungsplatte (9) flächig auf der Grundplatte (3) verlötet ist.Stack disc radiator according to one of the preceding claims, characterized in that a stiffening plate (9) is soldered flat on the base plate (3). Stapelscheibenkühler nach Anspruch 10, dadurch gekennzeichnet, dass die Versteifungsplatte (9) auf einer bezüglich des Stapels gegenüberliegenden Seite der Grundplatte (3) angeordnet istStack disc radiator according to claim 10, characterized in that the stiffening plate (9) is arranged on a side of the base plate (3) opposite the stack
EP10164783.2A 2009-06-22 2010-06-02 Stacked plate cooler Active EP2267390B2 (en)

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FR2989771A1 (en) * 2012-04-19 2013-10-25 Valeo Systemes Thermiques Cover for heat exchange bundle of charge air cooler to cool air intake module of heat engine of car, has wall comprising flat peripheral edge to authorize removable fixing of cover on housing, and reinforcement unit to reinforce wall
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WO2016096957A1 (en) * 2014-12-19 2016-06-23 Mahle International Gmbh Oil cooler for an oil filter module of a motor vehicle
GB2541032A (en) * 2015-08-07 2017-02-08 Gm Global Tech Operations Llc Oil cooler for an internal combustion engine
WO2017155802A1 (en) * 2016-03-07 2017-09-14 Modine Manufacturing Company Multifunctional base plate of a heat exchanger
EP3598050A1 (en) 2018-07-19 2020-01-22 Valeo Termico S.A. Reinforced heat exchanger comprising a stack of plates
EP3598051A1 (en) 2018-07-19 2020-01-22 Valeo Termico S.A. Reinforced heat exchanger comprising a stack of plates
EP3598049A1 (en) 2018-07-19 2020-01-22 Valeo Termico S.A. Reinforced heat exchanger comprising a stack of plates
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CN112805526A (en) * 2018-07-19 2021-05-14 法雷奥热力股份有限公司 Reinforced heat exchanger comprising stacked plates
CN112805526B (en) * 2018-07-19 2024-03-08 法雷奥热力股份有限公司 Reinforced heat exchanger comprising stacked plates

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DE102009030095A1 (en) 2010-12-23
EP2267390B1 (en) 2016-12-28
EP2267390B2 (en) 2022-12-14

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