EP2588826B1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
EP2588826B1
EP2588826B1 EP11727195.7A EP11727195A EP2588826B1 EP 2588826 B1 EP2588826 B1 EP 2588826B1 EP 11727195 A EP11727195 A EP 11727195A EP 2588826 B1 EP2588826 B1 EP 2588826B1
Authority
EP
European Patent Office
Prior art keywords
frame
heat exchanger
medium
cooled
exchanger according
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.)
Not-in-force
Application number
EP11727195.7A
Other languages
German (de)
French (fr)
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EP2588826A2 (en
Inventor
Volker Velte
Wilhelm Grauer
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 International GmbH
Original Assignee
Mahle International GmbH
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Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP2588826A2 publication Critical patent/EP2588826A2/en
Application granted granted Critical
Publication of EP2588826B1 publication Critical patent/EP2588826B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F28D7/0008—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 the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • 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
    • F28D9/0062—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 spaced plates with inserted elements
    • F28D9/0075—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 spaced plates with inserted elements the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04—Means for preventing wrong assembling of parts

Definitions

  • the invention relates to a heat exchanger according to the preamble of claim 1.
  • FIG. 1 a stacked plate heat exchanger is shown, which consists of different arranged over each other elongated discs 2, each having a turbulence insert.
  • the turbulence insert 3 is lasered and punched and adapted in this way the shape of the disc 2.
  • the overlying discs 2 are arranged on a base plate 4. Through holes 5, which are used to guide the medium to be cooled or to guide the coolant, are formed at the end regions of each disk 2.
  • the stacked plate heat exchanger 1 is completed above the discs 2 with a flange F, which is the interface to the engine and for coolant management.
  • the discs 2 themselves are stamped or deep-drawn moldings. For the production of such moldings tools must be made, with different sizes of the discs 2 more tools are required.
  • the invention is therefore based on the object to provide a heat exchanger which can be variably manufactured and in which the investment costs for tools, in particular for prototypes or small series, are reduced.
  • the object is achieved by the features of the characterizing part of claim 1.
  • These have the advantage that the frame is simply cut out of a metal sheet by laser beams or jets of water, the course of the laser or water jets being controlled by a computer.
  • any computer-controlled laser or water jet tool with a special forming computer program is used for the preparation of the frame.
  • the production of an expensive tool is completely eliminated, whereby the investment costs are significantly reduced or completely eliminated.
  • Such a computer program can be easily varied, so that frames can be made in a variety of sizes and quantities, without the cost increases dramatically. This further reduces the development times for a heat exchanger. Since the heat exchanger can adopt any possible external contour due to the invention, an optimal use of space or adaptation to the available space in the motor vehicle is made possible.
  • the frame encloses the turbulence insert completely and in particular has an approximately rectangular shape.
  • the turbulence insert is held by the frame, wherein the height of the frame is matched to the height of the turbulence insert.
  • the turbulence insert only has to be punched out of a larger piece. A trimming of the turbulence insert to adapt to the shape of the frame is eliminated, which further reduces the manufacturing cost of the heat exchanger.
  • a separating arrangement is inserted between two layers each consisting of the frame and the turbulence insert. This separation arrangement separates the media streams of the medium to be cooled and the coolant. Since the separating arrangement is easy to produce either from a foil or from a thin sheet, the production costs for the heat exchanger are also reduced in this case.
  • the disk-like separation arrangement has a solder layer on both sides.
  • the heat exchanger based on frame in its geometry corresponds to a stacked plate heat exchanger, so that the corresponding flanges after assembly the heat exchanger can be placed as a conclusion on the heat exchanger, can also be used for the realized in frame construction heat exchanger. This eliminates the need to make new flanges for the heat exchanger manufactured in frame construction.
  • the first through-hole to the inlet of the medium to be cooled and the second through-hole to the outlet of the medium to be cooled are formed diagonally opposite or only opposite to each other in the frame.
  • the frame for receiving a mounting aid on a guide opening ensures that the overlaid frames also coincide exactly, so that the through holes to the inlet or outlet of the medium to be cooled or the cooling medium are reliably superimposed.
  • the guide opening is formed between the through hole and the energy lock.
  • the frame has at least one identification cam on its outer edge.
  • This identification cam has the advantage that it leaves a symmetrical pattern on the outside of the heat exchanger after installation of the heat exchanger, so that the person performing the coffering can immediately determine whether the individual frames are in the correct position relative to one another.
  • FIG. 2 shows a frame 6 as cut out by a computer controlled laser or water jet tool.
  • the frame 6 is approximately rectangular in shape and has in its longitudinal extent two web-shaped longitudinal edges 7 and 8, while at the narrow sides end portions 9 and 10 are widened.
  • the end region 9 comprises an inlet 11 for a liquid medium, a channel closure 13 for a liquid medium and a guide opening 14 for an assembly aid. Diagonally opposite to the channel closure 13 of the end region 9, a channel closure 13 is likewise formed in the end region 10.
  • the outlet 12 for the liquid medium of the end portion 10 is diagonally opposite the inlet 11 in the end portion 9.
  • the guide openings 14 are arranged so that they lie symmetrically in the formation of the frame 6.
  • FIG. 3 a separating arrangement is shown, which is designed as a cutting disc 15 and which is adapted to the outer contours of the frame 6 in their outer contours.
  • the cutting disk 15 is formed flat and has at its narrow ends openings 16 and 17, which are formed approximately oval and the channel closure 13 and the inlet 11 or the outlet 12 of the frame 6 span.
  • the centrally disposed opening 18, which is formed on both sides of the cutting disk 15, lies exactly below the guide opening 14.
  • FIG. 4 shows how the in FIG. 2 and 3 shown frame 6 and the blade 15 are mounted over each other.
  • the frame 6 rests on the cutting disk 15, wherein the interior of the frame 6 is filled by a turbulence insert 19.
  • This turbulence insert 19 is simply inserted into the frame 6 and only has to be punched for this purpose. Cutting the turbulence insert 19 to a specific shape is eliminated.
  • the frame 6 has an identification cam 20 at an end region 10.
  • the channel closure 13 is provided with a web 21, which allows a particular stability of the frame 6. By the web 21 it is ensured that the frame 6 can not bulge in the end region 9, 10.
  • FIG. 5 the cutting disk 15 and the frame 6 are alternately stacked and positioned on a base plate 22.
  • the frame 6 does not have the turbulence inserts.
  • FIG. 5 the position of a frame 6a can be seen.
  • the end portion 9 of the frame 6a is positioned on the left side of the base plate 22 while the end portion 10 of the frame 6a is located on the right side of the base plate 22.
  • the inlet 11 of the liquid medium end region 9 is located diagonally opposite the liquid medium outlet 12 in the end region 10 of the frame 6a.
  • the guide openings 14 are arranged opposite lying. Also, the channel closure 13 of the end portion 9 and the end portion 10 are in this positioning of the frame 6a diagonally opposite.
  • FIG. 6 a second position of a further frame 6b is shown, which is above, in connection with FIG. 5 explained frame 6a is positioned.
  • the frame 6b compared to the frame 6a of FIG. 5 rotated by 180 ° about its longitudinal axis.
  • the channel shutter 13 of the end portion 9 is now positioned at the position where the inlet 11 is positioned at the underlying frame 6a.
  • the channel closure 13 and the outlet 12 are also interchanged with each other.
  • the turbulence insert 19 is inserted into the frame 6b.
  • the medium to be cooled from the inlet 11 can escape and flows in the longitudinal direction of the frame 6 b through the turbulence insert 19 to flow out of the outlet 12 from the frame 6 b again.
  • FIG. 7 a fully manufactured oil heat exchanger is shown, in which a plurality of frames 6a, 6b are stacked over each other, wherein the frame 6a, 6b are separated by a cutting disc 15.
  • the turbulence inserts 19 are only indicated in this example.
  • the frames 6a, 6b are alternately, separated by a cutting disk 15, mounted on the base plate 22 and are closed by a flange 23.
  • the cutting discs 15 are coated on both sides with a solder prior to assembly, which leads to the fact that in a soldering process, the frame 6a, 6b and the turbulence insert 19 are firmly connected to each other.
  • FIG. 8 a charge air cooler is shown in the illustrated frame construction, wherein here too the frames 6a, 6b are arranged alternately on a base plate 22, wherein the frames 6a, 6b are separated by a respective separating disk 15.
  • the different channels for the permeability of the air used as a coolant or the medium to be cooled can be seen particularly clearly in this section.
  • the air-side profile is marked, while with the arrow 25, the coolant-side profile is shown.
  • the intercooler is covered with a flange 23.
  • FIG. 9 is a fabricated in frame construction heat exchanger 27 is inserted into a soldering device 26.
  • the heat exchanger 27 is supported on a guided by four guide pins 32 first plate 28, wherein between the first plate 28 and a second plate 29 a plurality of springs 30 are arranged.
  • 27 is a bolt 31 a, 31 b introduced through the guide openings 14 of the heat exchanger.
  • An end plate 33 covers the heat exchanger 27 from.
  • the end plate 33 is adjusted at the openings 34 of the guide pin 32 such that the heat exchanger 27 is biased against the springs 30.
  • the cutting discs 15 are provided on both sides with a layer of solder.
  • Heat exchanger 27 is pushed in a soldering furnace, where during a soldering process, the heat exchanger is soldered in its individual parts with each other.
  • a variable soldering device 26 is shown, which can be adapted to different sizes of the heat exchanger 27.
  • the bolts 31 a, 31 b, which engage in the guide openings 14 of the frame 6 of the heat exchanger 27, are both vertically and horizontally adjustable.
  • they are mounted on a Kassettier Anlagen 35, which can be removed after clamping again.
  • a soldering device 26 can be used for any shape of the frame-type heat exchanger 27.
  • the frame 6 of the heat exchanger 27 is cut or punched by a laser beam or a water jet, the tool being controlled by a computer program.
  • the frame 6 can also be produced as an extruded profile 36, as in FIG. 11 is shown.
  • the drawn extruded profile 36 produced in a single working process is then separated into frames 6.
  • the invention is not limited to a heat exchanger with an approximately rectangular base.
  • frame construction it is possible that all conceivable forms of heat exchangers 37 can be formed, as shown in FIG. 12 is shown.
  • annular contours can be made exactly as S-shaped or circular segment-shaped forms. Consequently the shape of the heat exchanger 37 can always be adapted to the installation position in the motor vehicle.

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

Description

Die Erfindung betrifft einen Wärmetauscher nach den Oberbegriff des Anspruchs 1.The invention relates to a heat exchanger according to the preamble of claim 1.

Solch ein Wärmetauscher ist aus US 4,815,534 A bekannt.Such a heat exchanger is out US 4,815,534 A known.

In Figur 1 ist ein Stapelscheiben-Wärmetauscher dargestellt, welcher aus verschiedenen über einander angeordneten länglichen Scheiben 2 besteht, die jeweils eine Turbulenzeinlage aufweisen. Die Turbulenzeinlage 3 ist dabei gelasert und gestanzt und auf diese Weise der Form der Scheibe 2 angepasst. Die über einander gelagerten Scheiben 2 sind auf einer Grundplatte 4 angeordnet. An den Endbereichen jeder Scheibe 2 sind Durchgangslöcher 5 ausgebildet, welche zur Führung des zu kühlenden Mediums bzw. zur Führung des Kühlmittels genutzt werden. Der Stapelscheiben-Wärmetauscher 1 wird oberhalb der Scheiben 2 mit einem Flansch F abgeschlossen, welcher die Schnittstelle zum Verbrennungsmotor und zur Kühlmittelführung darstellt. Die Scheiben 2 selbst sind dabei gestanzte oder tiefgezogene Formteile. Für die Herstellung solcher Formteile müssen Werkzeuge hergestellt werden, wobei für unterschiedliche Größen der Scheiben 2 mehrere Werkzeuge erforderlich sind. Die Vielzahl der Werkzeuge erhöht die Investitionskosten, da die Werkzeuge nicht variabel sind und für jede Scheibengröße ein eigenes Werkzeug erstellt werden muss. Je nach Wärmeübertragerart können bis zu vier verschiedene Werkzeuge je Scheibengröße erforderlich sein. Insbesondere bei der Fertigung von Prototypen, bei welchen ebenfalls für jede neue Größe ein Werkzeug gefertigt werden muss, sind lange Fertigungszeiten der Werkzeuge zu erwarten. Auf Grund der geringen Stückzahlen der Scheiben 2 bei Prototypen und kleinen Serien amortisiert sich die Investition in die Werkzeuge nicht.In FIG. 1 a stacked plate heat exchanger is shown, which consists of different arranged over each other elongated discs 2, each having a turbulence insert. The turbulence insert 3 is lasered and punched and adapted in this way the shape of the disc 2. The overlying discs 2 are arranged on a base plate 4. Through holes 5, which are used to guide the medium to be cooled or to guide the coolant, are formed at the end regions of each disk 2. The stacked plate heat exchanger 1 is completed above the discs 2 with a flange F, which is the interface to the engine and for coolant management. The discs 2 themselves are stamped or deep-drawn moldings. For the production of such moldings tools must be made, with different sizes of the discs 2 more tools are required. The large number of tools increases the investment costs because the tools are not variable and a separate tool must be created for each wheel size. Depending on the type of heat exchanger, up to four different tools per pane size may be required. Especially in the production of prototypes, at which also a tool must be made for each new size, long production times of the tools are to be expected. Due to the small numbers of disks 2 in prototypes and small series, the investment in the tools does not pay for itself.

Der Erfindung liegt somit die Aufgabe zu Grunde, einen Wärmetauscher anzugeben, welcher variabel herstellbar ist und bei welchem die Investitionskosten für Werkzeuge, insbesondere für Prototypen bzw. kleine Serien, reduziert werden.The invention is therefore based on the object to provide a heat exchanger which can be variably manufactured and in which the investment costs for tools, in particular for prototypes or small series, are reduced.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des kennzeichnenden Teils Anspruchs 1 gelöst. Diese haben den Vorteil, dass der Rahmen einfach durch Laserstrahlen oder Wasserstrahlen aus einem Blech ausgeschnitten wird, wobei der Lauf der Laser- bzw. Wasserstrahlen durch einen Computer gesteuert wird. Insbesondere bei höheren Stückzahlen kann auch Stanzen zur Herstellung der Rahmen denkbar sein. Somit wird für die Anfertigung des Rahmens ein beliebiges computergesteuertes Laser- oder Wasserstrahlwerkzeug mit einem speziellen, formgebenden Computerprogramm genutzt. Die Herstellung eines teuren Werkzeuges entfällt dabei vollständig, wodurch die Investitionskosten deutlich verringert werden oder vollständig entfallen. Ein solches Computerprogramm lässt sich einfach variieren, so dass Rahmen in den verschiedensten Größen und Stückzahlen hergestellt werden können, ohne dass die Kosten sich grundlegend erhöhen. Dadurch werden weiterhin die Entwicklungszeiten für einen Wärmetauscher reduziert. Da die Wärmetauscher aufgrund der Erfindung jede mögliche Außenkontur annehmen können, wird eine optimale Bauraumnutzung bzw. Anpassung an den vorhandenen Bauraum im Kraftfahrzeug ermöglicht.According to the invention the object is achieved by the features of the characterizing part of claim 1. These have the advantage that the frame is simply cut out of a metal sheet by laser beams or jets of water, the course of the laser or water jets being controlled by a computer. In particular, at higher quantities and punching for the production of the frame can be conceivable. Thus, any computer-controlled laser or water jet tool with a special forming computer program is used for the preparation of the frame. The production of an expensive tool is completely eliminated, whereby the investment costs are significantly reduced or completely eliminated. Such a computer program can be easily varied, so that frames can be made in a variety of sizes and quantities, without the cost increases dramatically. This further reduces the development times for a heat exchanger. Since the heat exchanger can adopt any possible external contour due to the invention, an optimal use of space or adaptation to the available space in the motor vehicle is made possible.

Vorteilhafterweise umschließt der Rahmen die Turbulenzeinlage vollständig und weist insbesondere eine annähernd rechteckige Form auf. Die Turbulenzeinlage wird durch den Rahmen gehalten, wobei die Höhe des Rahmens auf die Höhe der Turbulenzeinlage abgestimmt ist. Die Turbulenzeinlage muss nur aus einem größeren Stück heraus gestanzt werden. Ein Beschneiden der Turbulenzeinlage zur Anpassung an die Form des Rahmens entfällt, was die Herstellungskosten des Wärmetauschers weiter reduziert.Advantageously, the frame encloses the turbulence insert completely and in particular has an approximately rectangular shape. The turbulence insert is held by the frame, wherein the height of the frame is matched to the height of the turbulence insert. The turbulence insert only has to be punched out of a larger piece. A trimming of the turbulence insert to adapt to the shape of the frame is eliminated, which further reduces the manufacturing cost of the heat exchanger.

In einer Ausgestaltung ist zwischen zwei, jeweils aus dem Rahmen und der Turbulenzeinlage bestehenden Lagen eine Trennanordnung eingelegt. Diese Trennanordnung trennt dabei die Medienströme des zu kühlenden Mediums und des Kühlmittels. Da die Trennanordnung entweder aus einer Folie oder aus einem dünnen Blech einfach herzustellen ist, reduzieren sich auch hierbei die Herstellungskosten für den Wärmetauscher.In one embodiment, a separating arrangement is inserted between two layers each consisting of the frame and the turbulence insert. This separation arrangement separates the media streams of the medium to be cooled and the coolant. Since the separating arrangement is easy to produce either from a foil or from a thin sheet, the production costs for the heat exchanger are also reduced in this case.

In einer Weiterbildung weist die scheibenähnlich ausgebildete Trennanordnung beidseitig eine Lotschicht auf. Durch diese Lotschicht wird sichergestellt, dass beim Verlöten des vormontierten Wärmetauschers in einen Lötofen die Rahmen und Turbulenzeinlagen über die Trennanordnung fest mit einander verbunden werden, wodurch eine hohe Stabilität des Wärmetauschers erreicht wird.In a further development, the disk-like separation arrangement has a solder layer on both sides. By this solder layer ensures that when soldering the preassembled heat exchanger in a brazing furnace, the frame and turbulence inserts are firmly connected to each other via the separating arrangement, whereby a high stability of the heat exchanger is achieved.

Erfindungsgemäß sind in einem Endbereich des Rahmens jeweils ein Durchgangsloch zur Führung des zu kühlenden Mediums und ein Kanalverschluss ausgebildet. Durch diese Ausgestaltung entspricht der Wärmetauscher auf der Basis von Rahmen, in seiner Geometrie einem Stapelscheiben-Wärmetauscher, so dass die entsprechenden Flansche, die nach der Montage der Wärmetauscher als Abschluss auf den Wärmetauscher aufgesetzt werden, auch für den in Rahmenbauweise realisierten Wärmetauscher genutzt werden können. Damit entfällt es, neue Flansche für die in Rahmenbauweise hergestellten Wärmetauscher anfertigen zu müssen.According to the invention, in each case one through-hole for guiding the medium to be cooled and one channel closure are formed in an end region of the frame. Due to this configuration, the heat exchanger based on frame, in its geometry corresponds to a stacked plate heat exchanger, so that the corresponding flanges after assembly the heat exchanger can be placed as a conclusion on the heat exchanger, can also be used for the realized in frame construction heat exchanger. This eliminates the need to make new flanges for the heat exchanger manufactured in frame construction.

Um zu gewährleisten, dass das zu kühlende Medium durch die Turbulenzeinlage geführt wird, sind das erste Durchgangsloch zum Einlass des zu kühlenden Mediums und das zweite Durchgangsloch zum Auslass des zu kühlenden Mediums diagonal gegenüber liegend oder nur einfach gegenüber liegend im Rahmen ausgebildet.In order to ensure that the medium to be cooled is guided through the turbulence insert, the first through-hole to the inlet of the medium to be cooled and the second through-hole to the outlet of the medium to be cooled are formed diagonally opposite or only opposite to each other in the frame.

Ferner weist der Rahmen zur Aufnahme einer Montagehilfe eine Führungsöffnung auf. Durch diese Führungsöffnung wird gewährleistet, dass die über einander gelegten Rahmen auch exakt übereinstimmen, so dass die Durchgangslöcher zum Einlass bzw. Auslass des zu kühlenden Mediums oder des Kühlmediums zuverlässig übereinander liegen.Furthermore, the frame for receiving a mounting aid on a guide opening. This guide opening ensures that the overlaid frames also coincide exactly, so that the through holes to the inlet or outlet of the medium to be cooled or the cooling medium are reliably superimposed.

Erfindungsgemäß ist die Führungsöffnung zwischen dem Durchgangsloch und dem Energieverschluss ausgebildet.According to the invention, the guide opening is formed between the through hole and the energy lock.

In einer Weiterbildung ist zwischen zwei Rahmen, die in einer ersten vorgegebenen Position zu einander positioniert sind, jeweils ein weiterer Rahmen in einer zweiten vorgegebenen, insbesondere zur ersten Position gewendeten oder gedrehten, Position gelagert. Durch diese alternierende Positionierung der Rahmen zu einander, werden die Hohlräume für die Durchführung eines zu kühlenden Mediums und für das Kühlmittel hergestellt, so dass diese immer abwechselnd zu einander geführt werden und das Kühlmittel ausreichend die Wärme des zu kühlenden Mediums abführen kann.In a development, between two frames, which are positioned in a first predetermined position to each other, in each case a further frame in a second predetermined, in particular the first position turned or rotated, stored position. By this alternate positioning of the frame to each other, the cavities for the implementation of a medium to be cooled and the coolant are prepared so that they are always alternately led to each other and the coolant can sufficiently dissipate the heat of the medium to be cooled.

In einer Ausgestaltung weist der Rahmen an seinem äußeren Rand mindestens eine Kennzeichnungsnocke auf. Diese Kennzeichnungsnocke hat den Vorteil, dass sie nach der Montage des Wärmetauschers ein symmetrisches Muster außen am Wärmetauscher hinterlässt, so dass die, die Kassettierung vornehmende Person sofort feststellen kann, ob die einzelnen Rahmen die richtige Position zu einander einnehmen.In one embodiment, the frame has at least one identification cam on its outer edge. This identification cam has the advantage that it leaves a symmetrical pattern on the outside of the heat exchanger after installation of the heat exchanger, so that the person performing the coffering can immediately determine whether the individual frames are in the correct position relative to one another.

Die Erfindung lässt zahlreiche Ausführungsformen zu. Einige davon sollen anhand der in der Zeichnung dargestellten Figuren näher erläutert werden.The invention allows numerous embodiments. Some of these will be explained in more detail with reference to the figures shown in the drawing.

Es zeigt:

Figur 1:
Stapelscheiben-Wärmetauscher nach dem Stand der Technik,
Figur 2:
ein Rahmen eines Wärmetauschers,
Figur 3:
eine Trennscheibe eines Wärmetauschers,
Figur 4:
eine Explosionsdarstellung für die Anordnung des Rahmens nach Figur 2 und der Trennscheibe nach Figur 3,
Figur 5:
einen Draufsicht auf eine erste Positionierung des Rahmens in dem Wärmetauscher,
Figur 6:
einen Draufsicht auf eine zweite Positionierung des Rahmens in dem Wärmetauscher,
Figur 7:
einen Schnitt durch einen Ölwärmetauscher,
Figur 8:
einen Schnitt durch einen Ladeluftkühler,
Figur 9:
eine Lötvorrichtung mit dem Wärmetauscher,
Figur 10:
veränderbare Lötvorrichtung,
Figur 11:
Herstellung eines Rahmens aus einem Strangpressprofil,
Figur 12:
mögliche Bauformen des Wärmetauschers.
It shows:
FIG. 1:
Prior art stacked plate heat exchangers,
FIG. 2:
a frame of a heat exchanger,
FIG. 3:
a cutting disc of a heat exchanger,
FIG. 4:
an exploded view of the arrangement of the frame FIG. 2 and the cutting disc after FIG. 3 .
FIG. 5:
a plan view of a first positioning of the frame in the heat exchanger,
FIG. 6:
a plan view of a second positioning of the frame in the heat exchanger,
FIG. 7:
a section through an oil heat exchanger,
FIG. 8:
a section through a charge air cooler,
FIG. 9:
a soldering device with the heat exchanger,
FIG. 10:
changeable soldering device,
FIG. 11:
Production of a frame from an extruded profile,
FIG. 12:
possible designs of the heat exchanger.

Gleiche Merkmale sind mit gleichen Bezugszeichen gekennzeichnet.Identical features are identified by the same reference numerals.

Figur 2 zeigt einen Rahmen 6, wie er durch ein von einem Computer gesteuertes Laser- oder Wasserstrahlwerkzeug ausgeschnitten wird. Der Rahmen 6 ist dabei annähernd rechteckförmig ausgebildet und weist in seiner Längserstreckung zwei stegförmige Längsränder 7 und 8 auf, während an den Schmalseiten Endbereiche 9 und 10 verbreitert ausgeführt sind. Der Endbereich 9 umfasst dabei einen Einlass 11 für ein flüssiges Medium, einen Kanalverschluss 13 für ein flüssiges Medium sowie eine Führungsöffnung 14 für eine Montagehilfe. Diagonal gegenüber liegend zum Kanalverschluss 13 des Endbereiches 9 ist in dem Endbereich 10 ebenfalls ein Kanalverschluss 13 ausgebildet. Auch der Auslass 12 für das flüssige Medium des Endbereiches 10 liegt diagonal dem Einlass 11 in dem Endbereich 9 gegenüber. Zwischen dem Kanalverschluss 13 und dem Einlass 11 des Endbereiches 9 und dem Auslass 12 und dem Kanalverschluss 13 in dem Endbereich 10 sind die Führungsöffnungen 14 angeordnet, so dass diese sich bei der Ausbildung des Rahmens 6 symmetrisch gegenüber liegen. FIG. 2 shows a frame 6 as cut out by a computer controlled laser or water jet tool. The frame 6 is approximately rectangular in shape and has in its longitudinal extent two web-shaped longitudinal edges 7 and 8, while at the narrow sides end portions 9 and 10 are widened. The end region 9 comprises an inlet 11 for a liquid medium, a channel closure 13 for a liquid medium and a guide opening 14 for an assembly aid. Diagonally opposite to the channel closure 13 of the end region 9, a channel closure 13 is likewise formed in the end region 10. Also, the outlet 12 for the liquid medium of the end portion 10 is diagonally opposite the inlet 11 in the end portion 9. Between the channel closure 13 and the inlet 11 of the end portion 9 and the outlet 12 and the channel closure 13 in the End region 10, the guide openings 14 are arranged so that they lie symmetrically in the formation of the frame 6.

In Figur 3 ist eine Trennanordnung dargestellt, die als Trennscheibe 15 ausgebildet ist und welche in ihren Außenkonturen den Außenkonturen des Rahmens 6 angepasst ist. Die Trennscheibe 15 ist flächig ausgebildet und weist an ihren schmalen Enden Öffnungen 16 bzw. 17 auf, die annähernd oval ausgebildet sind und den Kanalverschluss 13 bzw. den Einlass 11 oder den Auslass 12 des Rahmens 6 überspannen. Die mittig angeordnete Öffnung 18, die auf beiden Seiten der Trennscheibe 15 ausgebildet ist, liegt dabei genau unter der Führungsöffnung 14.In FIG. 3 a separating arrangement is shown, which is designed as a cutting disc 15 and which is adapted to the outer contours of the frame 6 in their outer contours. The cutting disk 15 is formed flat and has at its narrow ends openings 16 and 17, which are formed approximately oval and the channel closure 13 and the inlet 11 or the outlet 12 of the frame 6 span. The centrally disposed opening 18, which is formed on both sides of the cutting disk 15, lies exactly below the guide opening 14.

Figur 4 zeigt, wie der in Figur 2 und 3 dargestellte Rahmen 6 und die Trennscheibe 15 über einander gelagert werden. Der Rahmen 6 liegt dabei auf der Trennscheibe 15 auf, wobei das Innere des Rahmens 6 durch eine Turbulenzeinlage 19 ausgefüllt ist. Diese Turbulenzeinlage 19 wird dabei einfach in den Rahmen 6 eingesetzt und muss für diesen Zweck lediglich gestanzt werden. Ein Zuschneiden der Turbulenzeinlage 19 auf eine bestimmte Form entfällt. Neben den bereits erläuterten Öffnungen wie Einlass 11 oder Auslass 12 bzw. Führungsöffnung 14 und den Kanalverschluss 13 weist der Rahmen 6 an einem Endbereich 10 eine Kennzeichnungsnocke 20 auf. Darüber hinaus ist der Kanalverschluss 13 mit einem Steg 21 versehen, welcher eine besondere Stabilität des Rahmens 6 ermöglicht. Durch den Steg 21 wird sichergestellt, dass der Rahmen 6 sich im Endbereich 9, 10 nicht wölben kann. FIG. 4 shows how the in FIG. 2 and 3 shown frame 6 and the blade 15 are mounted over each other. The frame 6 rests on the cutting disk 15, wherein the interior of the frame 6 is filled by a turbulence insert 19. This turbulence insert 19 is simply inserted into the frame 6 and only has to be punched for this purpose. Cutting the turbulence insert 19 to a specific shape is eliminated. In addition to the openings already explained, such as inlet 11 or outlet 12 or guide opening 14 and the channel closure 13, the frame 6 has an identification cam 20 at an end region 10. In addition, the channel closure 13 is provided with a web 21, which allows a particular stability of the frame 6. By the web 21 it is ensured that the frame 6 can not bulge in the end region 9, 10.

In Figur 5 sind die Trennscheibe 15 und die Rahmen 6 alternierend über einander geschichtet und auf einer Grundplatte 22 positioniert. Der Rahmen 6 verfügt dabei nicht über die Turbulenzeinlagen. Bei dieser Draufsicht ist die Position eines Rahmens 6a zu erkennen. Der Endbereich 9 des Rahmens 6a ist auf der linken Seite der Grundplatte 22 positioniert, während der Endbereich 10 des Rahmens 6a auf der rechten Seite der Grundplatte 22 angeordnet ist. Der Einlass 11 des Endbereiches 9 für ein flüssiges Medium liegt diagonal gegenüber zum Auslass 12 für das flüssige Medium im Endbereich 10 des Rahmens 6a. Die Führungsöffnungen 14 sind dabei gegenüber liegend angeordnet. Auch der Kanalverschluss 13 des Endbereiches 9 bzw. des Endbereiches 10 liegen sich bei dieser Positionierung des Rahmens 6a diagonal gegenüber.In FIG. 5 the cutting disk 15 and the frame 6 are alternately stacked and positioned on a base plate 22. The frame 6 does not have the turbulence inserts. In this plan view, the position of a frame 6a can be seen. The end portion 9 of the frame 6a is positioned on the left side of the base plate 22 while the end portion 10 of the frame 6a is located on the right side of the base plate 22. The inlet 11 of the liquid medium end region 9 is located diagonally opposite the liquid medium outlet 12 in the end region 10 of the frame 6a. The guide openings 14 are arranged opposite lying. Also, the channel closure 13 of the end portion 9 and the end portion 10 are in this positioning of the frame 6a diagonally opposite.

In Figur 6 ist eine zweite Position eines weiteren Rahmens 6b dargestellt, welcher über dem, im Zusammenhang mit Figur 5 erläuterten Rahmen 6a positioniert ist. Dabei ist der Rahmen 6b im Vergleich zu dem Rahmen 6a der Figur 5 um seine Längsachse um 180° gedreht. Daraus ergibt sich, dass der Kanalverschluss 13 des Endbereiches 9 jetzt an der Stelle positioniert ist, wo bei dem darunter liegendem Rahmen 6a der Einlass 11 positioniert ist. Hinsichtlich des Endbereiches 10 sind ebenfalls der Kanalverschluss 13 und der Auslass12 mit einander vertauscht. In dieser Position ist die Turbulenzeinlage 19 in den Rahmen 6b eingelegt. Somit kann das zu kühlende Medium aus dem Einlass 11 austreten und strömt in Längsrichtung des Rahmens 6b durch die Turbulenzeinlage 19, um aus dem Auslass 12 wieder aus dem Rahmen 6b auszuströmen.In FIG. 6 a second position of a further frame 6b is shown, which is above, in connection with FIG. 5 explained frame 6a is positioned. In this case, the frame 6b compared to the frame 6a of FIG. 5 rotated by 180 ° about its longitudinal axis. As a result, the channel shutter 13 of the end portion 9 is now positioned at the position where the inlet 11 is positioned at the underlying frame 6a. With regard to the end region 10, the channel closure 13 and the outlet 12 are also interchanged with each other. In this position, the turbulence insert 19 is inserted into the frame 6b. Thus, the medium to be cooled from the inlet 11 can escape and flows in the longitudinal direction of the frame 6 b through the turbulence insert 19 to flow out of the outlet 12 from the frame 6 b again.

In Figur 7 ist ein vollständig gefertigter Ölwärmetauscher dargestellt, bei welchem mehrere Rahmen 6a, 6b über einander geschichtet sind, wobei die Rahmen 6a, 6b durch eine Trennscheibe 15 getrennt sind. Die Turbulenzeinlagen 19 sind in diesem Beispiel nur angedeutet. Die Rahmen 6a, 6b sind abwechselnd, von einer Trennscheibe 15 getrennt, auf der Grundplatte 22 gelagert und werden durch einen Flansch 23 verschlossen. Die Trennscheiben 15 werden vor der Montage beidseitig mit einem Lot beschichtet, welches dazu führt, dass in einem Lötprozess die Rahmen 6a, 6b und die Turbulenzeinlage 19 fest mit einander verbunden werden.In FIG. 7 a fully manufactured oil heat exchanger is shown, in which a plurality of frames 6a, 6b are stacked over each other, wherein the frame 6a, 6b are separated by a cutting disc 15. The turbulence inserts 19 are only indicated in this example. The frames 6a, 6b are alternately, separated by a cutting disk 15, mounted on the base plate 22 and are closed by a flange 23. The cutting discs 15 are coated on both sides with a solder prior to assembly, which leads to the fact that in a soldering process, the frame 6a, 6b and the turbulence insert 19 are firmly connected to each other.

In Figur 8 ist ein Ladeluftkühler in der erläuterten Rahmenbauweise dargestellt, wobei auch hier die Rahmen 6a, 6b abwechselnd auf einer Grundplatte 22 angeordnet sind, wobei die Rahmen 6a, 6b durch jeweils eine Trennscheibe 15 getrennt sind. Die unterschiedlichen Kanäle zur Durchlässigkeit der als Kühlmittel genutzten Luft bzw. des zu kühlenden Mediums sind an diesem Schnitt besonders deutlich zu erkennen. Mit dem Pfeil 24 ist das luftseitige Profil gekennzeichnet, während mit dem Pfeil 25 das kühlmittelseitige Profil dargestellt ist. Auch der Ladeluftkühler ist mit einem Flansch 23 abgedeckt.In FIG. 8 a charge air cooler is shown in the illustrated frame construction, wherein here too the frames 6a, 6b are arranged alternately on a base plate 22, wherein the frames 6a, 6b are separated by a respective separating disk 15. The different channels for the permeability of the air used as a coolant or the medium to be cooled can be seen particularly clearly in this section. With the arrow 24, the air-side profile is marked, while with the arrow 25, the coolant-side profile is shown. The intercooler is covered with a flange 23.

In Figur 9 ist ein in Rahmenbauweise gefertigter Wärmetauscher 27 in eine Lötvorrichtung 26 eingesetzt. Der Wärmetauscher 27 lagert dabei auf einer mittels vier Führungsbolzen 32 geführten ersten Platte 28, wobei zwischen der ersten Platte 28 und einer zweiten Platte 29 mehrere Federn 30 angeordnet sind. Um die Rahmen 6a, 6b und die Trennscheiben 15 sicher positionieren zu können, ist durch die Führungsöffnungen 14 des Wärmetauschers 27 jeweils ein Bolzen 31 a, 31 b eingeführt. Eine Abschlussplatte 33 deckt den Wärmetauscher 27 ab. Die Abschlussplatte 33 wird an den Öffnungen 34 der Führungsbolzen 32 derart eingestellt, dass der Wärmetauscher 27 gegen die Federn 30 vorgespannt ist. Wie bereits erläutert, sind in dem vormontierten Wärmetauscher 27 die Trennscheiben 15 beidseitig mit einer Lotschicht versehen. Der so in die Lötvorrichtung 26 eingespannte Wärmetauscher 27 wird in einem Lötofen geschoben, wo während eines Lötprozesses der Wärmetauscher in seinen Einzelteilen mit einander verlötet wird.In FIG. 9 is a fabricated in frame construction heat exchanger 27 is inserted into a soldering device 26. The heat exchanger 27 is supported on a guided by four guide pins 32 first plate 28, wherein between the first plate 28 and a second plate 29 a plurality of springs 30 are arranged. In order to securely position the frame 6a, 6b and the cutting wheels 15, 27 is a bolt 31 a, 31 b introduced through the guide openings 14 of the heat exchanger. An end plate 33 covers the heat exchanger 27 from. The end plate 33 is adjusted at the openings 34 of the guide pin 32 such that the heat exchanger 27 is biased against the springs 30. As already explained, in the preassembled heat exchanger 27, the cutting discs 15 are provided on both sides with a layer of solder. The thus clamped in the soldering device 26 Heat exchanger 27 is pushed in a soldering furnace, where during a soldering process, the heat exchanger is soldered in its individual parts with each other.

In Figur 10 ist eine variable Lötvorrichtung 26 dargestellt, welche an unterschiedliche Größenordnungen der Wärmetauscher 27 angepasst werden kann. Die Bolzen 31 a, 31 b, welche in den Führungsöffnungen 14 des Rahmens 6 des Wärmetauschers 27 eingreifen, sind dabei sowohl vertikal als auch horizontal verstellbar. Außerdem sind sie auf einer Kassettierhilfe 35 befestigt, welche nach dem Spannen wieder entfernt werden kann. Somit lässt sich eine Lötvorrichtung 26 für jede Form der in Rahmenbauweise hergestellte Wärmetauscher 27 nutzen.In FIG. 10 a variable soldering device 26 is shown, which can be adapted to different sizes of the heat exchanger 27. The bolts 31 a, 31 b, which engage in the guide openings 14 of the frame 6 of the heat exchanger 27, are both vertically and horizontally adjustable. In addition, they are mounted on a Kassettierhilfe 35, which can be removed after clamping again. Thus, a soldering device 26 can be used for any shape of the frame-type heat exchanger 27.

Wie bereits erläutert, wird der Rahmen 6 des Wärmetauschers 27 durch einen Laserstrahl oder einen Wasserstrahl ausgeschnitten oder gestanzt, wobei das Werkzeug von einem Computerprogramm gesteuert wird. Alternativ lassen sich die Rahmen 6 aber auch als Strangpressprofil 36 herstellen, wie es in Figur 11 dargestellt ist. Das in einem einzigen Arbeitsprozess erzeugte gezogene Strangpressprofil 36 wird dann anschließend zu den Rahmen 6 vereinzelt.As already explained, the frame 6 of the heat exchanger 27 is cut or punched by a laser beam or a water jet, the tool being controlled by a computer program. Alternatively, the frame 6 can also be produced as an extruded profile 36, as in FIG. 11 is shown. The drawn extruded profile 36 produced in a single working process is then separated into frames 6.

Die Erfindung ist aber nicht nur auf einen Wärmetauscher mit einer annähernd rechteckigen Grundfläche beschränkt. Mittels der Rahmenbauweise ist es möglich, dass alle erdenklichen Formen von Wärmetauschern 37 ausgebildet werden können, wie es in Figur 12 dargestellt ist. Insbesondere durch die Verwendung eines Computerprogrammes, welches ein Laser- oder ein Wasserstrahlwerkzeug steuert, können ringförmige Konturen genau so hergestellt werden wie S-förmige oder kreissegmentförmige Formen. Somit kann die Form des Wärmetauschers 37 immer der Einbaulage im Kraftfahrzeug angepasst werden.However, the invention is not limited to a heat exchanger with an approximately rectangular base. By means of the frame construction, it is possible that all conceivable forms of heat exchangers 37 can be formed, as shown in FIG FIG. 12 is shown. In particular, by the use of a computer program which controls a laser or a water jet tool, annular contours can be made exactly as S-shaped or circular segment-shaped forms. Consequently the shape of the heat exchanger 37 can always be adapted to the installation position in the motor vehicle.

Claims (8)

  1. A heat exchanger,
    - consisting of a plurality of layers arranged on top of each other, which layers have in each case a cavity (24) for the passage of a medium to be cooled and delimit a further cavity (25) for the passage of a coolant,
    wherein each layer (6, 6a, 6b, 19) has a through hole (11, 12) for the passage of the medium to be cooled,
    - wherein a layer (6, 6a, 6b, 19) consists of a frame (6, 6a, 6b) in which a turbulence insert (19) is inserted,
    - wherein in an end region (9, 10) of the frame (6, 6a, 6b) in each case one through hole (11, 12) for the passage of the medium to be cooled and one channel closure (13) are formed,
    characterized in
    - that the frame (6, 6a, 6b) has a guide opening (14) for receiving an assembly aid, and
    - that the guide opening (14) is formed between the through hole (11, 12) and the channel closure (13).
  2. The heat exchanger according to claim 1, characterized in that the channel closure (13) is provided with a rib (21).
  3. The heat exchanger according to claim 1 or claim 2, characterized in that the frame (6, 6a, 6b) completely encloses the turbulence insert (19) and advantageously has an approximately rectangular shape.
  4. The heat exchanger according to any one of the claims 1 to 3, characterized in that a separating arrangement (15) is inserted between two layers (6, 6a, 6b, 19), which layers each consist of the frame (6, 6a, 6b) and the turbulence insert (19).
  5. The heat exchanger according to claim 4, characterized in that the separating arrangement (15) that is formed in a plate-like manner has a solder layer on both sides.
  6. The heat exchanger according to any one of the preceding claims, characterized in that the first through hole (11) to the inlet of the medium to be cooled and the second through hole (12) to the outlet of the medium to be cooled are formed in the frame (6, 6a, 6b) and are arranged diagonally opposite each other.
  7. The heat exchanger according to at least one of the preceding claims, characterized in that between two frames (6a), in a predetermined position, in each case one further frame (6b) is mounted in a second predetermined position which is in particular turned or rotated relative to the first position.
  8. The heat exchanger according to at least one of the preceding claims, characterized in that the frame (6) has at least one marking pin on its outer edge.
EP11727195.7A 2010-06-29 2011-06-24 Heat exchanger Not-in-force EP2588826B1 (en)

Applications Claiming Priority (2)

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DE102010025576A DE102010025576A1 (en) 2010-06-29 2010-06-29 heat exchangers
PCT/EP2011/060639 WO2012000905A2 (en) 2010-06-29 2011-06-24 Heat exchanger

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EP2588826A2 EP2588826A2 (en) 2013-05-08
EP2588826B1 true EP2588826B1 (en) 2014-04-16

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US (1) US20130168048A1 (en)
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CN (1) CN103154655B (en)
DE (1) DE102010025576A1 (en)
DK (1) DK2588826T3 (en)
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WO (1) WO2012000905A2 (en)

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US9709342B2 (en) 2013-02-13 2017-07-18 Modine Manufacturing Company Heat exchanger arrangement in a housing
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US20130168048A1 (en) 2013-07-04
WO2012000905A2 (en) 2012-01-05
CN103154655A (en) 2013-06-12
WO2012000905A3 (en) 2012-03-08
DE102010025576A1 (en) 2011-12-29
CN103154655B (en) 2016-04-27
EP2588826A2 (en) 2013-05-08
DK2588826T3 (en) 2014-05-26
ES2464371T3 (en) 2014-06-02

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